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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "sdp_os_defs.h"
#include "sipcc_sdp.h"
#include "sdp_private.h"
#include "sdp_log.h"
static const char* logTag = "sdp_attr_access";
/* Attribute access routines are all defined by the following parameters.
*
* sdp_p The SDP handle returned by sdp_init_description.
* level The level the attribute is defined. Can be either
* SDP_SESSION_LEVEL or 0-n specifying a media line level.
* inst_num The instance number of the attribute. Multiple instances
* of a particular attribute may exist at each level and so
* the inst_num determines the particular attribute at that
* level that should be accessed. Note that this is the
* instance number of the specified type of attribute, not the
* overall attribute number at the level. Also note that the
* instance number is 1-based. For example:
* v=0
* o=mhandley 2890844526 2890842807 IN IP4 126.16.64.4
* s=SDP Seminar
* c=IN IP4 10.1.0.2
* t=0 0
* m=audio 1234 RTP/AVP 0 101 102
* a=foo 1
* a=foo 2
* a=bar 1 # This is instance 1 of attribute bar.
* a=foo 3 # This is instance 3 of attribute foo.
* cap_num Almost all of the attributes may be defined as X-cpar
* parameters (with the exception of X-sqn, X-cap, and X-cpar).
* If the cap_num is set to zero, then the attribute is not
* an X-cpar parameter attribute. If the cap_num is any other
* value, it specifies the capability number that the X-cpar
* attribute is specified for.
*/
/* Attribute handling:
*
* There are two basic types of attributes handled by the SDP library,
* those defined by a= token lines, and those embedded with a=X-cpar lines.
* The handling for each of these is described here.
*
* Simple (non X-cpar attributes):
*
* Attributes not embedded in a=X-cpar lines are referenced by level and
* instance number. For these attributes the capability number is always
* set to zero.
*
* An application will typically process these attributes in one of two ways.
* With the first method, the application can determine the total number
* of attributes defined at a given level and process them one at a time.
* For each attribute, the application will query the library to find out
* what type of attribute it is and which instance within that type. The
* application can then process this particular attribute referencing it
* by level and instance number.
*
* A second method of processing attributes is for applications to determine
* each type of attribute they are interested in, query the SDP library to
* find out how many of that type of attribute exist at a given level, and
* process each one at a time.
*
* X-cpar attribute processing:
*
* X-cpar attributes can contain embedded attributes. They are associated
* with X-cap attribute lines. An example of X-cap and X-cpar attributes
* found in an SDP is as follows:
*
* v=0
* o=- 25678 753849 IN IP4 128.96.41.1
* s=-
* t=0 0
* c=IN IP4 10.1.0.2
* m=audio 3456 RTP/AVP 18 96
* a=rtpmap:96 telephone-event/8000
* a=fmtp:96 0-15,32-35
* a=X-sqn: 0
* a=X-cap: 1 audio RTP/AVP 0 18 96 97
* a=X-cpar: a=fmtp:96 0-16,32-35
* a=X-cpar: a=rtpmap:97 X-NSE/8000
* a=X-cpar: a=fmtp:97 195-197
* a=X-cap: 5 image udptl t38
* a=X-cap: 6 application udp X-tmr
* a=X-cap: 7 audio RTP/AVP 100 101
* a=X-cpar: a=rtpmap:100 g.711/8000
* a=X-cpar: a=rtpmap:101 g.729/8000
*
* X-cap attributes can be defined at the SESSION_LEVEL or any media level.
* An X-cap attr is defined by the level and instance number just like
* other attributes. In the example above, X-cap attrs are defined at
* media level 1 and there are four instances at that level.
*
* The X-cpar attributes can also be referenced by level and instance number.
* However, the embedded attribute within an X-cpar attribute must be
* referenced by level, instance number, and capability number. This is
* because the X-cpar attribute is associated with a particular X-cap/
* capability.
* For all attributes that are not embedded within an X-cpar attribute, the
* cap_num should be referenced as zero. But for X-cpar attributes, the
* cap_num is specified to be one of the capability numbers of the previous
* X-cap line. The number of capabilities specified in an X-cap line is
* equal to the number of payloads. Thus, in this example, the first X-cap
* attr instance specifies capabilities 1-4, the second specifies capability
* 5, the third capability 6, and the fourth capabilities 7-8.
*
* X-cpar attributes can be processed with methods similar to the two
* previously mentioned. For each X-cap attribute, the application can
* use one of two methods to process the X-cpar attributes. First, it
* can query the total number of X-cpar attributes associated with a
* given X-cap attribute. The X-cap attribute is here defined by a level
* and a capability number. In the example above, the total number of
* attributes defined is as follows:
* level 1, cap_num 1 - total attrs: 3
* level 1, cap_num 5 - total attrs: 0
* level 1, cap_num 6 - total attrs: 0
* level 1, cap_num 7 - total attrs: 2
*
* Note that if the application queried the number of attributes for
* cap_num 2, 3, or 4, it would also return 3 attrs, and for cap_num
* 8 the library would return 2.
*
* Once the application determines the total number of attributes for
* that capability, it can again query the embedded attribute type and
* instance. For example, sdp_get_attr_type would return the following:
* level 1, cap_num 1, attr 1 -> attr type fmtp, instance 1
* level 1, cap_num 1, attr 2 -> attr type rtpmap, instance 1
* level 1, cap_num 1, attr 3 -> attr type fmtp, instance 2
* level 1, cap_num 7, attr 1 -> attr type rtpmap, instance 1
* level 1, cap_num 7, attr 2 -> attr type rtpmap, instance 2
*
* The individual embedded attributes can then be accessed by level,
* cap_num, and instance number.
*
* With the second method for handling X-cpar attributes, the application
* determines the types of attributes it is interested in. It can then
* query the SDP library to determine the number of attributes of that
* type found for that level and cap_num, and then process each one at
* a time. e.g., calling sdp_attr_num_instances would give:
* level 1, cap_num 1, attr_type fmtp -> two instances
* level 1, cap_num 1, attr_type rtpmap -> one instance
* level 1, cap_num 7, attr_type fmtp -> zero instances
* level 1, cap_num 7, attr_type rtpmap -> two instances
*/
/* Function: sdp_add_new_attr
* Description: Add a new attribute of the specified type at the given
* level and capability level or base attribute if cap_num
* is zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* attr_type The type of attribute to add.
* inst_num Pointer to a uint16_t in which to return the instance
* number of the newly added attribute.
* Returns: SDP_SUCCESS Attribute was added successfully.
* SDP_NO_RESOURCE No memory avail for new attribute.
* SDP_INVALID_PARAMETER Specified media line is not defined.
*/
sdp_result_e sdp_add_new_attr (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
sdp_attr_e attr_type, uint16_t *inst_num)
{
uint16_t i;
sdp_mca_t *mca_p;
sdp_mca_t *cap_p;
sdp_attr_t *attr_p;
sdp_attr_t *new_attr_p;
sdp_attr_t *prev_attr_p=NULL;
sdp_fmtp_t *fmtp_p;
sdp_comediadir_t *comediadir_p;
*inst_num = 0;
if ((cap_num != 0) &&
((attr_type == SDP_ATTR_X_CAP) || (attr_type == SDP_ATTR_X_CPAR) ||
(attr_type == SDP_ATTR_X_SQN) || (attr_type == SDP_ATTR_CDSC) ||
(attr_type == SDP_ATTR_CPAR) || (attr_type == SDP_ATTR_SQN))) {
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Warning: Invalid attribute type for X-cpar/cdsc "
"parameter.", sdp_p->debug_str);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
/* Some attributes are valid only under media level */
if (level == SDP_SESSION_LEVEL) {
switch (attr_type) {
case SDP_ATTR_RTCP:
case SDP_ATTR_LABEL:
return (SDP_INVALID_MEDIA_LEVEL);
default:
break;
}
}
new_attr_p = (sdp_attr_t *)SDP_MALLOC(sizeof(sdp_attr_t));
if (new_attr_p == NULL) {
sdp_p->conf_p->num_no_resource++;
return (SDP_NO_RESOURCE);
}
new_attr_p->type = attr_type;
new_attr_p->next_p = NULL;
/* Initialize the new attribute structure */
if ((new_attr_p->type == SDP_ATTR_X_CAP) ||
(new_attr_p->type == SDP_ATTR_CDSC)) {
new_attr_p->attr.cap_p = (sdp_mca_t *)SDP_MALLOC(sizeof(sdp_mca_t));
if (new_attr_p->attr.cap_p == NULL) {
sdp_free_attr(new_attr_p);
sdp_p->conf_p->num_no_resource++;
return (SDP_NO_RESOURCE);
}
} else if (new_attr_p->type == SDP_ATTR_FMTP) {
fmtp_p = &(new_attr_p->attr.fmtp);
fmtp_p->fmtp_format = SDP_FMTP_UNKNOWN_TYPE;
// set to invalid value
fmtp_p->packetization_mode = SDP_INVALID_PACKETIZATION_MODE_VALUE;
fmtp_p->level_asymmetry_allowed = SDP_INVALID_LEVEL_ASYMMETRY_ALLOWED_VALUE;
fmtp_p->annexb_required = FALSE;
fmtp_p->annexa_required = FALSE;
fmtp_p->maxval = 0;
fmtp_p->bitrate = 0;
fmtp_p->cif = 0;
fmtp_p->qcif = 0;
fmtp_p->profile = SDP_INVALID_VALUE;
fmtp_p->level = SDP_INVALID_VALUE;
fmtp_p->parameter_add = SDP_FMTP_UNUSED;
fmtp_p->usedtx = SDP_FMTP_UNUSED;
fmtp_p->stereo = SDP_FMTP_UNUSED;
fmtp_p->useinbandfec = SDP_FMTP_UNUSED;
fmtp_p->cbr = SDP_FMTP_UNUSED;
for (i=0; i < SDP_NE_NUM_BMAP_WORDS; i++) {
fmtp_p->bmap[i] = 0;
}
} else if ((new_attr_p->type == SDP_ATTR_RTPMAP) ||
(new_attr_p->type == SDP_ATTR_SPRTMAP)) {
new_attr_p->attr.transport_map.num_chan = 1;
} else if (new_attr_p->type == SDP_ATTR_DIRECTION) {
comediadir_p = &(new_attr_p->attr.comediadir);
comediadir_p->role = SDP_MEDIADIR_ROLE_PASSIVE;
comediadir_p->conn_info_present = FALSE;
} else if (new_attr_p->type == SDP_ATTR_MPTIME) {
sdp_mptime_t *mptime = &(new_attr_p->attr.mptime);
mptime->num_intervals = 0;
}
if (cap_num == 0) {
/* Add a new attribute. */
if (level == SDP_SESSION_LEVEL) {
if (sdp_p->sess_attrs_p == NULL) {
sdp_p->sess_attrs_p = new_attr_p;
} else {
for (attr_p = sdp_p->sess_attrs_p;
attr_p != NULL;
prev_attr_p = attr_p, attr_p = attr_p->next_p) {
/* Count the num instances of this type. */
if (attr_p->type == attr_type) {
(*inst_num)++;
}
}
prev_attr_p->next_p = new_attr_p;
}
} else {
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
sdp_free_attr(new_attr_p);
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
if (mca_p->media_attrs_p == NULL) {
mca_p->media_attrs_p = new_attr_p;
} else {
for (attr_p = mca_p->media_attrs_p;
attr_p != NULL;
prev_attr_p = attr_p, attr_p = attr_p->next_p) {
/* Count the num instances of this type. */
if (attr_p->type == attr_type) {
(*inst_num)++;
}
}
prev_attr_p->next_p = new_attr_p;
}
}
} else {
/* Add a new capability attribute - find the capability attr. */
attr_p = sdp_find_capability(sdp_p, level, cap_num);
if (attr_p == NULL) {
sdp_free_attr(new_attr_p);
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
cap_p = attr_p->attr.cap_p;
if (cap_p->media_attrs_p == NULL) {
cap_p->media_attrs_p = new_attr_p;
} else {
for (attr_p = cap_p->media_attrs_p;
attr_p != NULL;
prev_attr_p = attr_p, attr_p = attr_p->next_p) {
/* Count the num instances of this type. */
if (attr_p->type == attr_type) {
(*inst_num)++;
}
}
prev_attr_p->next_p = new_attr_p;
}
}
/* Increment the instance num for the attr just added. */
(*inst_num)++;
return (SDP_SUCCESS);
}
/* Function: sdp_attr_num_instances
* Description: Get the number of attributes of the specified type at
* the given level and capability level.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* attr_type The type of attribute to add.
* num_attr_inst Pointer to a uint16_t in which to return the
* number of attributes.
* Returns: SDP_SUCCESS Attribute was added successfully.
* SDP_INVALID_PARAMETER Specified media line is not defined.
*/
sdp_result_e sdp_attr_num_instances (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
sdp_attr_e attr_type, uint16_t *num_attr_inst)
{
sdp_attr_t *attr_p;
sdp_result_e rc;
static char fname[] = "attr_num_instances";
*num_attr_inst = 0;
rc = sdp_find_attr_list(sdp_p, level, cap_num, &attr_p, fname);
if (rc == SDP_SUCCESS) {
/* Found the attr list. Count the number of attrs of the given
* type at this level. */
for (; attr_p != NULL; attr_p = attr_p->next_p) {
if (attr_p->type == attr_type) {
(*num_attr_inst)++;
}
}
}
return (rc);
}
/* Forward declaration for use in sdp_free_attr */
static boolean sdp_attr_is_long_string(sdp_attr_e attr_type);
/* Internal routine to free the memory associated with an attribute.
* Certain attributes allocate additional memory. Free this and then
* free the attribute itself.
* Note that this routine may be called at any point (i.e., may be
* called due to a failure case) and so the additional memory
* associated with an attribute may or may not have been already
* allocated. This routine should check this carefully.
*/
void sdp_free_attr (sdp_attr_t *attr_p)
{
sdp_mca_t *cap_p;
sdp_attr_t *cpar_p;
sdp_attr_t *next_cpar_p;
int i;
/* If this is an X-cap/cdsc attr, free the cap_p structure and
* all X-cpar/cpar attributes. */
if ((attr_p->type == SDP_ATTR_X_CAP) ||
(attr_p->type == SDP_ATTR_CDSC)) {
cap_p = attr_p->attr.cap_p;
if (cap_p != NULL) {
for (cpar_p = cap_p->media_attrs_p; cpar_p != NULL;) {
next_cpar_p = cpar_p->next_p;
sdp_free_attr(cpar_p);
cpar_p = next_cpar_p;
}
SDP_FREE(cap_p);
}
} else if ((attr_p->type == SDP_ATTR_SDESCRIPTIONS) ||
(attr_p->type == SDP_ATTR_SRTP_CONTEXT)) {
SDP_FREE(attr_p->attr.srtp_context.session_parameters);
} else if (sdp_attr_is_long_string(attr_p->type)) {
SDP_FREE(attr_p->attr.stringp);
}
if (attr_p->type == SDP_ATTR_GROUP) {
for (i = 0; i < attr_p->attr.stream_data.num_group_id; i++) {
SDP_FREE(attr_p->attr.stream_data.group_ids[i]);
}
} else if (attr_p->type == SDP_ATTR_MSID_SEMANTIC) {
for (i = 0; i < SDP_MAX_MEDIA_STREAMS; ++i) {
SDP_FREE(attr_p->attr.msid_semantic.msids[i]);
}
}
/* Now free the actual attribute memory. */
SDP_FREE(attr_p);
}
/* Function: sdp_find_attr_list
* Description: Find the attribute list for the specified level and cap_num.
* Note: This is not an API for the application but an internal
* routine used by the SDP library.
* Parameters: sdp_p Pointer to the SDP to search.
* level The level to check for the attribute list.
* cap_num The capability number associated with the
* attribute list. If none, should be zero.
* attr_p Pointer to the attr list pointer. Will be
* filled in on return if successful.
* fname String function name calling this routine.
* Use for printing debug.
* Returns: SDP_SUCCESS
* SDP_INVALID_MEDIA_LEVEL
* SDP_INVALID_CAPABILITY
* SDP_FAILURE
*/
sdp_result_e sdp_find_attr_list (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
sdp_attr_t **attr_p, char *fname)
{
sdp_mca_t *mca_p;
sdp_mca_t *cap_p;
sdp_attr_t *cap_attr_p;
/* Initialize the attr pointer. */
*attr_p = NULL;
if (cap_num == 0) {
/* Find attribute list at the specified level. */
if (level == SDP_SESSION_LEVEL) {
*attr_p = sdp_p->sess_attrs_p;
} else {
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
*attr_p = mca_p->media_attrs_p;
}
} else {
/* Find the attr list for the capability specified. */
cap_attr_p = sdp_find_capability(sdp_p, level, cap_num);
if (cap_attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s, invalid capability %u at "
"level %u specified.", sdp_p->debug_str, fname,
(unsigned)cap_num, (unsigned)level);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_CAPABILITY);
}
cap_p = cap_attr_p->attr.cap_p;
*attr_p = cap_p->media_attrs_p;
}
return (SDP_SUCCESS);
}
/* Find fmtp inst_num with correct payload value or -1 for failure */
int sdp_find_fmtp_inst (sdp_t *sdp_p, uint16_t level, uint16_t payload_num)
{
uint16_t attr_count=0;
sdp_mca_t *mca_p;
sdp_attr_t *attr_p;
/* Attr is at a media level */
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
return (-1);
}
for (attr_p = mca_p->media_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_FMTP) {
attr_count++;
if (attr_p->attr.fmtp.payload_num == payload_num) {
return (attr_count);
}
}
}
return (-1);
}
/* Function: sdp_find_attr
* Description: Find the specified attribute in an SDP structure.
* Note: This is not an API for the application but an internal
* routine used by the SDP library.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* attr_type The type of attribute to find.
* inst_num The instance num of the attribute to find.
* Range should be (1 - max num insts of this
* particular type of attribute at this level).
* Returns: Pointer to the attribute or NULL if not found.
*/
sdp_attr_t *sdp_find_attr (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
sdp_attr_e attr_type, uint16_t inst_num)
{
uint16_t attr_count=0;
sdp_mca_t *mca_p;
sdp_mca_t *cap_p;
sdp_attr_t *attr_p;
if (inst_num < 1) {
return (NULL);
}
if (cap_num == 0) {
if (level == SDP_SESSION_LEVEL) {
for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == attr_type) {
attr_count++;
if (attr_count == inst_num) {
return (attr_p);
}
}
}
} else { /* Attr is at a media level */
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
return (NULL);
}
for (attr_p = mca_p->media_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == attr_type) {
attr_count++;
if (attr_count == inst_num) {
return (attr_p);
}
}
}
} /* Attr is at a media level */
} else {
/* Attr is a capability X-cpar/cpar attribute. */
attr_p = sdp_find_capability(sdp_p, level, cap_num);
if (attr_p == NULL) {
return (NULL);
}
cap_p = attr_p->attr.cap_p;
/* Now find the specific attribute. */
for (attr_p = cap_p->media_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == attr_type) {
attr_count++;
if (attr_count == inst_num) {
return (attr_p);
}
}
}
}
return (NULL);
}
/* Function: sdp_find_capability
* Description: Find the specified capability attribute in an SDP structure.
* Note: This is not an API for the application but an internal
* routine used by the SDP library.
* Parameters: sdp_p The SDP handle.
* level The level to check for the capability.
* cap_num The capability number to locate.
* Returns: Pointer to the capability attribute or NULL if not found.
*/
sdp_attr_t *sdp_find_capability (sdp_t *sdp_p, uint16_t level, uint8_t cap_num)
{
uint8_t cur_cap_num=0;
sdp_mca_t *mca_p;
sdp_mca_t *cap_p;
sdp_attr_t *attr_p;
if (level == SDP_SESSION_LEVEL) {
for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if ((attr_p->type == SDP_ATTR_X_CAP) ||
(attr_p->type == SDP_ATTR_CDSC)) {
cap_p = attr_p->attr.cap_p;
cur_cap_num += cap_p->num_payloads;
if (cap_num <= cur_cap_num) {
/* This is the right capability */
return (attr_p);
}
}
}
} else { /* Capability is at a media level */
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
return (NULL);
}
for (attr_p = mca_p->media_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if ((attr_p->type == SDP_ATTR_X_CAP) ||
(attr_p->type == SDP_ATTR_CDSC)) {
cap_p = attr_p->attr.cap_p;
cur_cap_num += cap_p->num_payloads;
if (cap_num <= cur_cap_num) {
/* This is the right capability */
return (attr_p);
}
}
}
}
/* We didn't find the specified capability. */
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Unable to find specified capability (level %u, "
"cap_num %u).", sdp_p->debug_str, (unsigned)level, (unsigned)cap_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
}
/* Function: sdp_attr_valid(sdp_t *sdp_p)
* Description: Returns true or false depending on whether the specified
* instance of the given attribute has been defined at the
* given level.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* attr_type The attribute type to validate.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: TRUE or FALSE.
*/
tinybool sdp_attr_valid (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
if (sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num) == NULL) {
return (FALSE);
} else {
return (TRUE);
}
}
/* Function: sdp_attr_line_number(sdp_t *sdp_p)
* Description: Returns the line number this attribute appears on.
* Only works if the SDP was parsed rather than created
* locally.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* attr_type The attribute type to validate.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: line number, or 0 if an error
*/
uint32_t sdp_attr_line_number (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num);
if (attr_p == NULL) {
return 0;
} else {
return attr_p->line_number;
}
}
static boolean sdp_attr_is_simple_string(sdp_attr_e attr_type) {
if ((attr_type != SDP_ATTR_BEARER) &&
(attr_type != SDP_ATTR_CALLED) &&
(attr_type != SDP_ATTR_CONN_TYPE) &&
(attr_type != SDP_ATTR_DIALED) &&
(attr_type != SDP_ATTR_DIALING) &&
(attr_type != SDP_ATTR_FRAMING) &&
(attr_type != SDP_ATTR_MID) &&
(attr_type != SDP_ATTR_X_SIDIN) &&
(attr_type != SDP_ATTR_X_SIDOUT)&&
(attr_type != SDP_ATTR_X_CONFID) &&
(attr_type != SDP_ATTR_LABEL) &&
(attr_type != SDP_ATTR_ICE_OPTIONS) &&
(attr_type != SDP_ATTR_IMAGEATTR) &&
(attr_type != SDP_ATTR_SIMULCAST) &&
(attr_type != SDP_ATTR_RID)) {
return FALSE;
}
return TRUE;
}
/* Function: sdp_attr_get_simple_string
* Description: Returns a pointer to a string attribute parameter. This
* routine can only be called for attributes that have just
* one string parameter. The value is returned as a const
* ptr and so cannot be modified by the application. If the
* given attribute is not defined, NULL will be returned.
* Attributes with a simple string parameter currently include:
* bearer, called, connection_type, dialed, dialing, direction
* and framing.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* attr_type The simple string attribute type.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Pointer to the parameter value.
*/
const char *sdp_attr_get_simple_string (sdp_t *sdp_p, sdp_attr_e attr_type,
uint16_t level, uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (!sdp_attr_is_simple_string(attr_type)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute type is not a simple string (%s)",
sdp_p->debug_str, sdp_get_attr_name(attr_type));
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.",
sdp_p->debug_str, sdp_get_attr_name(attr_type),
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.string_val);
}
}
static boolean sdp_attr_is_long_string(sdp_attr_e attr_type) {
return (attr_type == SDP_ATTR_IDENTITY || attr_type == SDP_ATTR_DTLS_MESSAGE);
}
/* Identical in usage to sdp_attr_get_simple_string() */
const char *sdp_attr_get_long_string (sdp_t *sdp_p, sdp_attr_e attr_type,
uint16_t level, uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (!sdp_attr_is_long_string(attr_type)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute type is not a long string (%s)",
sdp_p->debug_str, sdp_get_attr_name(attr_type));
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.",
sdp_p->debug_str, sdp_get_attr_name(attr_type),
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.stringp);
}
}
static boolean sdp_attr_is_simple_u32(sdp_attr_e attr_type) {
if ((attr_type != SDP_ATTR_EECID) &&
(attr_type != SDP_ATTR_PTIME) &&
(attr_type != SDP_ATTR_MAXPTIME) &&
(attr_type != SDP_ATTR_SCTPPORT) &&
(attr_type != SDP_ATTR_MAXMESSAGESIZE) &&
(attr_type != SDP_ATTR_T38_VERSION) &&
(attr_type != SDP_ATTR_T38_MAXBITRATE) &&
(attr_type != SDP_ATTR_T38_MAXBUFFER) &&
(attr_type != SDP_ATTR_T38_MAXDGRAM) &&
(attr_type != SDP_ATTR_X_SQN) &&
(attr_type != SDP_ATTR_TC1_PAYLOAD_BYTES) &&
(attr_type != SDP_ATTR_TC1_WINDOW_SIZE) &&
(attr_type != SDP_ATTR_TC2_PAYLOAD_BYTES) &&
(attr_type != SDP_ATTR_TC2_WINDOW_SIZE) &&
(attr_type != SDP_ATTR_FRAMERATE)) {
return FALSE;
}
return TRUE;
}
/* Function: sdp_attr_get_simple_u32
* Description: Returns an unsigned 32-bit attribute parameter. This
* routine can only be called for attributes that have just
* one uint32_t parameter. If the given attribute is not defined,
* zero will be returned. There is no way for the application
* to determine if zero is the actual value or the attribute
* wasn't defined, so the application must use the
* sdp_attr_valid function to determine this.
* Attributes with a simple uint32_t parameter currently include:
* eecid, ptime, T38FaxVersion, T38maxBitRate, T38FaxMaxBuffer,
* T38FaxMaxDatagram, X-sqn, TC1PayloadBytes, TC1WindowSize,
* TC2PayloadBytes, TC2WindowSize, rtcp.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* attr_type The simple uint32_t attribute type.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: uint32_t parameter value.
*/
uint32_t sdp_attr_get_simple_u32 (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (!sdp_attr_is_simple_u32(attr_type)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute type is not a simple uint32_t (%s)",
sdp_p->debug_str, sdp_get_attr_name(attr_type));
}
sdp_p->conf_p->num_invalid_param++;
return (0);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.",
sdp_p->debug_str, sdp_get_attr_name(attr_type),
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.u32_val);
}
}
/* Function: sdp_attr_get_simple_boolean
* Description: Returns a boolean attribute parameter. This
* routine can only be called for attributes that have just
* one boolean parameter. If the given attribute is not defined,
* FALSE will be returned. There is no way for the application
* to determine if FALSE is the actual value or the attribute
* wasn't defined, so the application must use the
* sdp_attr_valid function to determine this.
* Attributes with a simple boolean parameter currently include:
* T38FaxFillBitRemoval, T38FaxTranscodingMMR,
* T38FaxTranscodingJBIG, and TMRGwXid.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* attr_type The simple boolean attribute type.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Boolean value.
*/
tinybool sdp_attr_get_simple_boolean (sdp_t *sdp_p, sdp_attr_e attr_type,
uint16_t level, uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if ((attr_type != SDP_ATTR_T38_FILLBITREMOVAL) &&
(attr_type != SDP_ATTR_T38_TRANSCODINGMMR) &&
(attr_type != SDP_ATTR_T38_TRANSCODINGJBIG) &&
(attr_type != SDP_ATTR_TMRGWXID)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute type is not a simple boolean (%s)",
sdp_p->debug_str, sdp_get_attr_name(attr_type));
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.",
sdp_p->debug_str, sdp_get_attr_name(attr_type),
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.boolean_val);
}
}
/*
* sdp_attr_get_maxprate
*
* This function is used by the application layer to get the packet-rate
* within the maxprate attribute.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to set.
*
* Returns a pointer to a constant char array that stores the packet-rate,
* OR null if the attribute does not exist.
*/
const char*
sdp_attr_get_maxprate (sdp_t *sdp_p, uint16_t level, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_MAXPRATE, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Attribute %s, level %u instance %u not found.",
sdp_p->debug_str, sdp_get_attr_name(SDP_ATTR_MAXPRATE),
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.string_val);
}
}
/* Function: sdp_attr_get_t38ratemgmt
* Description: Returns the value of the t38ratemgmt attribute
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_T38_UNKNOWN_RATE is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Ratemgmt value.
*/
sdp_t38_ratemgmt_e sdp_attr_get_t38ratemgmt (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_T38_RATEMGMT, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s t38ratemgmt attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_T38_UNKNOWN_RATE);
} else {
return (attr_p->attr.t38ratemgmt);
}
}
/* Function: sdp_attr_get_t38udpec
* Description: Returns the value of the t38udpec attribute
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_T38_UDPEC_UNKNOWN is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: UDP EC value.
*/
sdp_t38_udpec_e sdp_attr_get_t38udpec (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_T38_UDPEC, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s t38udpec attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_T38_UDPEC_UNKNOWN);
} else {
return (attr_p->attr.t38udpec);
}
}
/* Function: sdp_get_media_direction
* Description: Determines the direction defined for a given level. The
* direction will be inactive, sendonly, recvonly, or sendrecv
* as determined by the last of these attributes specified at
* the given level. If none of these attributes are specified,
* the direction will be sendrecv by default.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* Returns: An SDP direction enum value.
*/
sdp_direction_e sdp_get_media_direction (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num)
{
sdp_mca_t *mca_p;
sdp_attr_t *attr_p;
sdp_direction_e direction = SDP_DIRECTION_SENDRECV;
if (cap_num == 0) {
/* Find the pointer to the attr list for this level. */
if (level == SDP_SESSION_LEVEL) {
attr_p = sdp_p->sess_attrs_p;
} else { /* Attr is at a media level */
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
return (direction);
}
attr_p = mca_p->media_attrs_p;
}
/* Scan for direction oriented attributes. Last one wins. */
for (; attr_p != NULL; attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_INACTIVE) {
direction = SDP_DIRECTION_INACTIVE;
} else if (attr_p->type == SDP_ATTR_SENDONLY) {
direction = SDP_DIRECTION_SENDONLY;
} else if (attr_p->type == SDP_ATTR_RECVONLY) {
direction = SDP_DIRECTION_RECVONLY;
} else if (attr_p->type == SDP_ATTR_SENDRECV) {
direction = SDP_DIRECTION_SENDRECV;
}
}
} else {
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Warning: Invalid cap_num for media direction.",
sdp_p->debug_str);
}
}
return (direction);
}
/* Since there are four different attribute names which all have the same
* qos parameters, all of these attributes are accessed through this same
* set of APIs. To distinguish between specific attributes, the application
* must also pass the attribute type. The attribute must be one of:
* SDP_ATTR_QOS, SDP_ATTR_SECURE, SDP_ATTR_X_PC_QOS, and SDP_ATTR_X_QOS.
*/
tinybool sdp_validate_qos_attr (sdp_attr_e qos_attr)
{
if ((qos_attr == SDP_ATTR_QOS) ||
(qos_attr == SDP_ATTR_SECURE) ||
(qos_attr == SDP_ATTR_X_PC_QOS) ||
(qos_attr == SDP_ATTR_X_QOS) ||
(qos_attr == SDP_ATTR_CURR) ||
(qos_attr == SDP_ATTR_DES) ||
(qos_attr == SDP_ATTR_CONF)){
return (TRUE);
} else {
return (FALSE);
}
}
/* Function: sdp_attr_get_qos_strength
* Description: Returns the value of the qos attribute strength
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_QOS_STRENGTH_UNKNOWN is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: Qos strength value.
*/
sdp_qos_strength_e sdp_attr_get_qos_strength (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (sdp_validate_qos_attr(qos_attr) == FALSE) {
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified for"
"get qos strength.", sdp_p->debug_str);
}
return (SDP_QOS_STRENGTH_UNKNOWN);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_QOS_STRENGTH_UNKNOWN);
} else {
switch (qos_attr) {
case SDP_ATTR_QOS:
return (attr_p->attr.qos.strength);
case SDP_ATTR_DES:
return (attr_p->attr.des.strength);
default:
return SDP_QOS_STRENGTH_UNKNOWN;
}
}
}
/* Function: sdp_attr_get_qos_direction
* Description: Returns the value of the qos attribute direction
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_QOS_DIR_UNKNOWN is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: Qos direction value.
*/
sdp_qos_dir_e sdp_attr_get_qos_direction (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (sdp_validate_qos_attr(qos_attr) == FALSE) {
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified "
"for get qos direction.", sdp_p->debug_str);
}
return (SDP_QOS_DIR_UNKNOWN);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_QOS_DIR_UNKNOWN);
} else {
switch (qos_attr) {
case SDP_ATTR_QOS:
return (attr_p->attr.qos.direction);
case SDP_ATTR_CURR:
return (attr_p->attr.curr.direction);
case SDP_ATTR_DES:
return (attr_p->attr.des.direction);
case SDP_ATTR_CONF:
return (attr_p->attr.conf.direction);
default:
return SDP_QOS_DIR_UNKNOWN;
}
}
}
/* Function: sdp_attr_get_qos_status_type
* Description: Returns the value of the qos attribute status_type
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_QOS_STATUS_TYPE_UNKNOWN is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: Qos direction value.
*/
sdp_qos_status_types_e sdp_attr_get_qos_status_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (sdp_validate_qos_attr(qos_attr) == FALSE) {
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified "
"for get qos status_type.", sdp_p->debug_str);
}
return (SDP_QOS_STATUS_TYPE_UNKNOWN);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_QOS_STATUS_TYPE_UNKNOWN);
} else {
switch (qos_attr) {
case SDP_ATTR_CURR:
return (attr_p->attr.curr.status_type);
case SDP_ATTR_DES:
return (attr_p->attr.des.status_type);
case SDP_ATTR_CONF:
return (attr_p->attr.conf.status_type);
default:
return SDP_QOS_STATUS_TYPE_UNKNOWN;
}
}
}
/* Function: sdp_attr_get_qos_confirm
* Description: Returns the value of the qos attribute confirm
* parameter specified for the given attribute. Returns TRUE if
* the confirm parameter is specified.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: Boolean value.
*/
tinybool sdp_attr_get_qos_confirm (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
if (sdp_validate_qos_attr(qos_attr) == FALSE) {
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Warning: Invalid QOS attribute specified "
"for get qos confirm.", sdp_p->debug_str);
}
return (FALSE);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.qos.confirm);
}
}
/* Function: sdp_attr_get_curr_type
* Description: Returns the value of the curr attribute status_type
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_CURR_UNKNOWN_TYPE is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: Curr type value.
*/
sdp_curr_type_e sdp_attr_get_curr_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_CURR_UNKNOWN_TYPE);
} else {
return (attr_p->attr.curr.type);
}
}
/* Function: sdp_attr_get_des_type
* Description: Returns the value of the des attribute status_type
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_DES_UNKNOWN_TYPE is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: DES type value.
*/
sdp_des_type_e sdp_attr_get_des_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_DES_UNKNOWN_TYPE);
} else {
return (attr_p->attr.des.type);
}
}
/* Function: sdp_attr_get_conf_type
* Description: Returns the value of the des attribute status_type
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_CONF_UNKNOWN_TYPE is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* qos_attr The specific type of qos attribute. May be
* qos, secure, X-pc-qos, or X-qos.
* inst_num The attribute instance number to check.
* Returns: CONF type value.
*/
sdp_conf_type_e sdp_attr_get_conf_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e qos_attr, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, qos_attr, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(qos_attr), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_CONF_UNKNOWN_TYPE);
} else {
return (attr_p->attr.conf.type);
}
}
/* Function: sdp_attr_get_subnet_nettype
* Description: Returns the value of the subnet attribute network type
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_NT_INVALID is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Nettype value.
*/
sdp_nettype_e sdp_attr_get_subnet_nettype (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SUBNET, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Subnet attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_NT_INVALID);
} else {
return (attr_p->attr.subnet.nettype);
}
}
/* Function: sdp_attr_get_subnet_addrtype
* Description: Returns the value of the subnet attribute address type
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_AT_INVALID is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Addrtype value.
*/
sdp_addrtype_e sdp_attr_get_subnet_addrtype (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SUBNET, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Subnet attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_AT_INVALID);
} else {
return (attr_p->attr.subnet.addrtype);
}
}
/* Function: sdp_attr_get_subnet_addr
* Description: Returns the value of the subnet attribute address
* parameter specified for the given attribute. If the given
* attribute is not defined, NULL is returned. Value is
* returned as a const ptr and so cannot be modified by the
* application.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Pointer to address or NULL.
*/
const char *sdp_attr_get_subnet_addr (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SUBNET, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Subnet attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.subnet.addr);
}
}
/* Function: sdp_attr_get_subnet_prefix
* Description: Returns the value of the subnet attribute prefix
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_INVALID_PARAM is returned.
* Note that this is value is defined to be (-2) and is
* different from the return code SDP_INVALID_PARAMETER.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Prefix value or SDP_INVALID_PARAM.
*/
int32_t sdp_attr_get_subnet_prefix (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SUBNET, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Subnet attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.subnet.prefix);
}
}
/* Function: sdp_attr_rtpmap_payload_valid
* Description: Returns true or false depending on whether an rtpmap
* attribute was specified with the given payload value
* at the given level. If it was, the instance number of
* that attribute is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number of the attribute
* found is returned via this param.
* Returns: TRUE or FALSE.
*/
tinybool sdp_attr_rtpmap_payload_valid (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t *inst_num, uint16_t payload_type)
{
uint16_t i;
sdp_attr_t *attr_p;
uint16_t num_instances;
*inst_num = 0;
if (sdp_attr_num_instances(sdp_p, level, cap_num,
SDP_ATTR_RTPMAP, &num_instances) != SDP_SUCCESS) {
return (FALSE);
}
for (i=1; i <= num_instances; i++) {
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, i);
if ((attr_p != NULL) &&
(attr_p->attr.transport_map.payload_num == payload_type)) {
*inst_num = i;
return (TRUE);
}
}
return (FALSE);
}
/* Function: sdp_attr_get_rtpmap_payload_type
* Description: Returns the value of the rtpmap attribute payload type
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Payload type value.
*/
uint16_t sdp_attr_get_rtpmap_payload_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u "
"not found.",
sdp_p->debug_str,
(unsigned)level,
(unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.transport_map.payload_num);
}
}
/* Function: sdp_attr_get_rtpmap_encname
* Description: Returns a pointer to the value of the encoding name
* parameter specified for the given attribute. Value is
* returned as a const ptr and so cannot be modified by the
* application. If the given attribute is not defined, NULL
* will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Codec value or SDP_CODEC_INVALID.
*/
const char *sdp_attr_get_rtpmap_encname (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u "
"not found.",
sdp_p->debug_str,
(unsigned)level,
(unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.transport_map.encname);
}
}
/* Function: sdp_attr_get_rtpmap_clockrate
* Description: Returns the value of the rtpmap attribute clockrate
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Clockrate value.
*/
uint32_t sdp_attr_get_rtpmap_clockrate (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.transport_map.clockrate);
}
}
/* Function: sdp_attr_get_rtpmap_num_chan
* Description: Returns the value of the rtpmap attribute num_chan
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Number of channels param or zero.
*/
uint16_t sdp_attr_get_rtpmap_num_chan (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTPMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtpmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.transport_map.num_chan);
}
}
/* Function: sdp_attr_get_ice_attribute
* Description: Returns the value of an ice attribute at a given level
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* ice_attrib Returns an ice attrib string
* Returns:
* SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_SDP_PTR SDP pointer invalid
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_get_ice_attribute (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num,
char **out)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, sdp_attr, inst_num);
if (attr_p != NULL) {
*out = attr_p->attr.ice_attr;
return (SDP_SUCCESS);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s ice attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
}
/* Function: sdp_attr_is_present
* Description: Returns a boolean value based on attribute being present or
* not
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* attr_type The attribute type.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* Returns:
* Boolean value.
*/
tinybool sdp_attr_is_present (sdp_t *sdp_p, sdp_attr_e attr_type, uint16_t level,
uint8_t cap_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, attr_type, 1);
if (attr_p != NULL) {
return (TRUE);
}
if (sdp_p->debug_flag[SDP_DEBUG_WARNINGS]) {
SDPLogDebug(logTag, "%s Attribute %s, level %u not found.",
sdp_p->debug_str, sdp_get_attr_name(attr_type), level);
}
return (FALSE);
}
/* Function: sdp_attr_get_rtcp_mux_attribute
* Description: Returns the value of an rtcp-mux attribute at a given level
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* rtcp_mux Returns an rtcp-mux attrib bool
* Returns:
* SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_SDP_PTR SDP pointer invalid
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_get_rtcp_mux_attribute (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num,
tinybool *rtcp_mux)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, sdp_attr, inst_num);
if (attr_p != NULL) {
*rtcp_mux = attr_p->attr.boolean_val;
return (SDP_SUCCESS);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp-mux attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
}
/* Function: sdp_attr_get_setup_attribute
* Description: Returns the value of a setup attribute at a given level
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* setup_type Returns sdp_setup_type_e enum
* Returns:
* SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_SDP_PTR SDP pointer invalid
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_get_setup_attribute (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, sdp_setup_type_e *setup_type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SETUP, inst_num);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag,
"%s setup attribute, level %u instance %u not found.",
sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_INVALID_PARAMETER;
}
*setup_type = attr_p->attr.setup;
return SDP_SUCCESS;
}
/* Function: sdp_attr_get_connection_attribute
* Description: Returns the value of a connection attribute at a given level
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* connection_type Returns sdp_connection_type_e enum
* Returns:
* SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_SDP_PTR SDP pointer invalid
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_get_connection_attribute (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, sdp_connection_type_e *connection_type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_CONNECTION,
inst_num);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag,
"%s setup attribute, level %u instance %u not found.",
sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_INVALID_PARAMETER;
}
*connection_type = attr_p->attr.connection;
return SDP_SUCCESS;
}
/* Function: sdp_attr_get_dtls_fingerprint_attribute
* Description: Returns the value of dtls fingerprint attribute at a given level
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* dtls_fingerprint Returns an dtls fingerprint attrib string
* Returns:
* SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_SDP_PTR SDP pointer invalid
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_get_dtls_fingerprint_attribute (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, sdp_attr_e sdp_attr, uint16_t inst_num,
char **out)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, sdp_attr, inst_num);
if (attr_p != NULL) {
*out = attr_p->attr.string_val;
return (SDP_SUCCESS);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s dtls fingerprint attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
}
/* Function: sdp_attr_sprtmap_payload_valid
* Description: Returns true or false depending on whether an sprtmap
* attribute was specified with the given payload value
* at the given level. If it was, the instance number of
* that attribute is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number of the attribute
* found is returned via this param.
* Returns: TRUE or FALSE.
*/
tinybool sdp_attr_sprtmap_payload_valid (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t *inst_num, uint16_t payload_type)
{
uint16_t i;
sdp_attr_t *attr_p;
uint16_t num_instances;
*inst_num = 0;
if (sdp_attr_num_instances(sdp_p, level, cap_num,
SDP_ATTR_SPRTMAP, &num_instances) != SDP_SUCCESS) {
return (FALSE);
}
for (i=1; i <= num_instances; i++) {
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, i);
if ((attr_p != NULL) &&
(attr_p->attr.transport_map.payload_num == payload_type)) {
*inst_num = i;
return (TRUE);
}
}
return (FALSE);
}
/* Function: sdp_attr_get_sprtmap_payload_type
* Description: Returns the value of the sprtmap attribute payload type
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Payload type value.
*/
uint16_t sdp_attr_get_sprtmap_payload_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.transport_map.payload_num);
}
}
/* Function: sdp_attr_get_sprtmap_encname
* Description: Returns a pointer to the value of the encoding name
* parameter specified for the given attribute. Value is
* returned as a const ptr and so cannot be modified by the
* application. If the given attribute is not defined, NULL
* will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Codec value or SDP_CODEC_INVALID.
*/
const char *sdp_attr_get_sprtmap_encname (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.transport_map.encname);
}
}
/* Function: sdp_attr_get_sprtmap_clockrate
* Description: Returns the value of the sprtmap attribute clockrate
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Clockrate value.
*/
uint32_t sdp_attr_get_sprtmap_clockrate (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.transport_map.clockrate);
}
}
/* Function: sdp_attr_get_sprtmap_num_chan
* Description: Returns the value of the sprtmap attribute num_chan
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Number of channels param or zero.
*/
uint16_t sdp_attr_get_sprtmap_num_chan (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SPRTMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sprtmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.transport_map.num_chan);
}
}
/* Note: The fmtp attribute formats currently handled are:
* fmtp:<payload type> <event>,<event>...
* fmtp:<payload_type> [annexa=yes/no] [annexb=yes/no] [bitrate=<value>]
* where "value" is a numeric value > 0
* where each event is a single number or a range separated
* by a '-'.
* Example: fmtp:101 1,3-15,20
*/
/* Function: tinybool sdp_attr_fmtp_valid(sdp_t *sdp_p)
* Description: Returns true or false depending on whether an fmtp
* attribute was specified with the given payload value
* at the given level. If it was, the instance number of
* that attribute is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: TRUE or FALSE.
*/
tinybool sdp_attr_fmtp_payload_valid (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t *inst_num, uint16_t payload_type)
{
uint16_t i;
sdp_attr_t *attr_p;
uint16_t num_instances;
if (sdp_attr_num_instances(sdp_p, level, cap_num,
SDP_ATTR_FMTP, &num_instances) != SDP_SUCCESS) {
return (FALSE);
}
for (i=1; i <= num_instances; i++) {
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, i);
if ((attr_p != NULL) &&
(attr_p->attr.fmtp.payload_num == payload_type)) {
*inst_num = i;
return (TRUE);
}
}
return (FALSE);
}
/* Function: sdp_attr_get_fmtp_payload_type
* Description: Returns the value of the fmtp attribute payload type
* parameter specified for the given attribute. If the given
* attribute is not defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Payload type value.
*/
uint16_t sdp_attr_get_fmtp_payload_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.fmtp.payload_num);
}
}
/* Function: sdp_attr_fmtp_is_range_set
* Description: Determines if a range of events is set in an fmtp attribute.
* The overall range for events is 0-255.
* This will return either FULL_MATCH, PARTIAL_MATCH, or NO_MATCH
* depending on whether all, some, or none of the specified
* events are defined. If the given attribute is not defined,
* NO_MATCH will be returned. It is up to the appl to verify
* the validity of the attribute before calling this routine.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* low_val Low value of the range. Range is 0-255.
* high_val High value of the range.
* Returns: SDP_FULL_MATCH, SDP_PARTIAL_MATCH, SDP_NO_MATCH
*/
sdp_ne_res_e sdp_attr_fmtp_is_range_set (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, uint8_t low_val, uint8_t high_val)
{
uint16_t i;
uint32_t mapword;
uint32_t bmap;
uint32_t num_vals = 0;
uint32_t num_vals_set = 0;
sdp_attr_t *attr_p;
sdp_fmtp_t *fmtp_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_NO_MATCH);
}
fmtp_p = &(attr_p->attr.fmtp);
for (i = low_val; i <= high_val; i++) {
num_vals++;
mapword = i/SDP_NE_BITS_PER_WORD;
bmap = SDP_NE_BIT_0 << (i%32);
if (fmtp_p->bmap[ mapword ] & bmap) {
num_vals_set++;
}
}
if (num_vals == num_vals_set) {
return (SDP_FULL_MATCH);
} else if (num_vals_set == 0) {
return (SDP_NO_MATCH);
} else {
return (SDP_PARTIAL_MATCH);
}
}
/* Function: sdp_attr_fmtp_valid
* Description: Determines the validity of the events in the fmtp.
* The overall range for events is 0-255.
* The user passes an event list with valid events supported by Appl.
* This routine will do a simple AND comparison and report the result.
*
* This will return TRUE if ftmp events are valid, and FALSE otherwise.
* It is up to the appl to verify the validity of the attribute
* before calling this routine.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* appl_maxval Max event value supported by Appl. Range is 0-255.
* evt_array Bitmap containing events supported by application.
* Returns: TRUE, FALSE
*/
tinybool
sdp_attr_fmtp_valid(sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, uint16_t appl_maxval, uint32_t* evt_array)
{
uint16_t i;
uint32_t mapword;
sdp_attr_t *attr_p;
sdp_fmtp_t *fmtp_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return FALSE;
}
fmtp_p = &(attr_p->attr.fmtp);
/* Do quick test. If application max value is lower than fmtp's then error */
if (fmtp_p->maxval > appl_maxval)
return FALSE;
/* Ok, events are within range. Now check that only
* allowed events have been received
*/
mapword = appl_maxval/SDP_NE_BITS_PER_WORD;
for (i=0; i<mapword; i++) {
if (fmtp_p->bmap[i] & ~(evt_array[i])) {
/* Remote SDP is requesting events not supported by Application */
return FALSE;
}
}
return TRUE;
}
/* Function: sdp_attr_set_fmtp_payload_type
* Description: Sets the value of the fmtp attribute payload type parameter
* for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* payload_type New payload type value.
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_set_fmtp_payload_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint16_t payload_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
attr_p->attr.fmtp.payload_num = payload_num;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_range
* Description: Get a range of named events for an fmtp attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* bmap The 8 word data array holding the bitmap
* Returns: SDP_SUCCESS
*/
sdp_result_e sdp_attr_get_fmtp_range (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, uint32_t *bmap)
{
sdp_attr_t *attr_p;
sdp_fmtp_t *fmtp_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
fmtp_p = &(attr_p->attr.fmtp);
memcpy(bmap, fmtp_p->bmap, SDP_NE_NUM_BMAP_WORDS * sizeof(uint32_t) );
return (SDP_SUCCESS);
}
/* Function: sdp_attr_clear_fmtp_range
* Description: Clear a range of named events for an fmtp attribute. The low
* value specified must be <= the high value.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* low_val The low value of the range. Range is 0-255
* high_val The high value of the range. May be == low.
* Returns: SDP_SUCCESS
*/
sdp_result_e sdp_attr_clear_fmtp_range (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, uint8_t low_val, uint8_t high_val)
{
uint16_t i;
uint32_t mapword;
uint32_t bmap;
sdp_attr_t *attr_p;
sdp_fmtp_t *fmtp_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
fmtp_p = &(attr_p->attr.fmtp);
for (i = low_val; i <= high_val; i++) {
mapword = i/SDP_NE_BITS_PER_WORD;
bmap = SDP_NE_BIT_0 << (i%32);
fmtp_p->bmap[ mapword ] &= ~bmap;
}
if (high_val > fmtp_p->maxval) {
fmtp_p->maxval = high_val;
}
return (SDP_SUCCESS);
}
/* Function: sdp_attr_compare_fmtp_ranges
* Description: Compare the named events set of two fmtp attributes. If all
* events are the same (either set or not), FULL_MATCH will be
* returned. If no events match, NO_MATCH will be returned.
* Otherwise PARTIAL_MATCH will be returned. If either attr is
* invalid, NO_MATCH will be returned.
* Parameters: src_sdp_p The SDP handle returned by sdp_init_description.
* dst_sdp_p The SDP handle returned by sdp_init_description.
* src_level The level of the src fmtp attribute.
* dst_level The level to the dst fmtp attribute.
* src_cap_num The capability number of the src attr.
* dst_cap_num The capability number of the dst attr.
* src_inst_numh The attribute instance of the src attr.
* dst_inst_numh The attribute instance of the dst attr.
* Returns: SDP_FULL_MATCH, SDP_PARTIAL_MATCH, SDP_NO_MATCH.
*/
sdp_ne_res_e sdp_attr_compare_fmtp_ranges (sdp_t *src_sdp_p,sdp_t *dst_sdp_p,
uint16_t src_level, uint16_t dst_level,
uint8_t src_cap_num, uint8_t dst_cap_num,
uint16_t src_inst_num, uint16_t dst_inst_num)
{
uint16_t i,j;
uint32_t bmap;
uint32_t num_vals_match = 0;
sdp_attr_t *src_attr_p;
sdp_attr_t *dst_attr_p;
sdp_fmtp_t *src_fmtp_p;
sdp_fmtp_t *dst_fmtp_p;
src_attr_p = sdp_find_attr(src_sdp_p, src_level, src_cap_num,
SDP_ATTR_FMTP, src_inst_num);
dst_attr_p = sdp_find_attr(dst_sdp_p, dst_level, dst_cap_num,
SDP_ATTR_FMTP, dst_inst_num);
if ((src_attr_p == NULL) || (dst_attr_p == NULL)) {
if (src_sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s source or destination fmtp attribute for "
"compare not found.", src_sdp_p->debug_str);
}
src_sdp_p->conf_p->num_invalid_param++;
return (SDP_NO_MATCH);
}
src_fmtp_p = &(src_attr_p->attr.fmtp);
dst_fmtp_p = &(dst_attr_p->attr.fmtp);
for (i = 0; i < SDP_NE_NUM_BMAP_WORDS; i++) {
for (j = 0; j < SDP_NE_BITS_PER_WORD; j++) {
bmap = SDP_NE_BIT_0 << j;
if ((src_fmtp_p->bmap[i] & bmap) && (dst_fmtp_p->bmap[i] & bmap)) {
num_vals_match++;
} else if ((!(src_fmtp_p->bmap[i] & bmap)) &&
(!(dst_fmtp_p->bmap[i] & bmap))) {
num_vals_match++;
}
}
}
if (num_vals_match == (SDP_NE_NUM_BMAP_WORDS * SDP_NE_BITS_PER_WORD)) {
return (SDP_FULL_MATCH);
} else if (num_vals_match == 0) {
return (SDP_NO_MATCH);
} else {
return (SDP_PARTIAL_MATCH);
}
}
/* Function: sdp_attr_copy_fmtp_ranges
* Description: Copy the named events set for one fmtp attribute to another.
* Parameters: src_sdp_p The SDP handle returned by sdp_init_description.
* dst_sdp_p The SDP handle returned by sdp_init_description.
* src_level The level of the src fmtp attribute.
* dst_level The level to the dst fmtp attribute.
* src_cap_num The capability number of the src attr.
* dst_cap_num The capability number of the dst attr.
* src_inst_numh The attribute instance of the src attr.
* dst_inst_numh The attribute instance of the dst attr.
* Returns: SDP_SUCCESS
*/
sdp_result_e sdp_attr_copy_fmtp_ranges (sdp_t *src_sdp_p, sdp_t *dst_sdp_p,
uint16_t src_level, uint16_t dst_level,
uint8_t src_cap_num, uint8_t dst_cap_num,
uint16_t src_inst_num, uint16_t dst_inst_num)
{
uint16_t i;
sdp_attr_t *src_attr_p;
sdp_attr_t *dst_attr_p;
sdp_fmtp_t *src_fmtp_p;
sdp_fmtp_t *dst_fmtp_p;
if (!src_sdp_p || !dst_sdp_p) {
return (SDP_INVALID_SDP_PTR);
}
src_attr_p = sdp_find_attr(src_sdp_p, src_level, src_cap_num,
SDP_ATTR_FMTP, src_inst_num);
dst_attr_p = sdp_find_attr(dst_sdp_p, dst_level, dst_cap_num,
SDP_ATTR_FMTP, dst_inst_num);
if ((src_attr_p == NULL) || (dst_attr_p == NULL)) {
if (src_sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s source or destination fmtp attribute for "
"copy not found.", src_sdp_p->debug_str);
}
src_sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
src_fmtp_p = &(src_attr_p->attr.fmtp);
dst_fmtp_p = &(dst_attr_p->attr.fmtp);
dst_fmtp_p->maxval = src_fmtp_p->maxval;
for (i = 0; i < SDP_NE_NUM_BMAP_WORDS; i++) {
dst_fmtp_p->bmap[i] = src_fmtp_p->bmap[i];
}
return (SDP_SUCCESS);
}
/* Function: sdp_attr_get_fmtp_mode
* Description: Gets the value of the fmtp attribute mode parameter
* for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* payload_type payload type.
* Returns: mode value or zero if mode attribute not found
*/
uint32_t sdp_attr_get_fmtp_mode_for_payload_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint32_t payload_type)
{
uint16_t num_a_lines = 0;
int i;
sdp_attr_t *attr_p;
/*
* Get number of FMTP attributes for the AUDIO line
*/
(void) sdp_attr_num_instances(sdp_p, level, cap_num, SDP_ATTR_FMTP,
&num_a_lines);
for (i = 0; i < num_a_lines; i++) {
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, (uint16_t) (i + 1));
if ((attr_p != NULL) &&
(attr_p->attr.fmtp.payload_num == (uint16_t)payload_type)) {
if (attr_p->attr.fmtp.fmtp_format == SDP_FMTP_MODE) {
return attr_p->attr.fmtp.mode;
}
}
}
return 0;
}
sdp_result_e sdp_attr_set_fmtp_max_fs (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t max_fs)
{
sdp_attr_t *attr_p;
sdp_fmtp_t *fmtp_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
fmtp_p = &(attr_p->attr.fmtp);
fmtp_p->fmtp_format = SDP_FMTP_CODEC_INFO;
if (max_fs > 0) {
fmtp_p->max_fs = max_fs;
return (SDP_SUCCESS);
} else {
return (SDP_FAILURE);
}
}
sdp_result_e sdp_attr_set_fmtp_max_fr (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t max_fr)
{
sdp_attr_t *attr_p;
sdp_fmtp_t *fmtp_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
fmtp_p = &(attr_p->attr.fmtp);
fmtp_p->fmtp_format = SDP_FMTP_CODEC_INFO;
if (max_fr > 0) {
fmtp_p->max_fr = max_fr;
return (SDP_SUCCESS);
} else {
return (SDP_FAILURE);
}
}
/* Function: sdp_attr_get_fmtp_max_average_bitrate
* Description: Gets the value of the fmtp attribute- maxaveragebitrate parameter for the OPUS codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-br value.
*/
sdp_result_e sdp_attr_get_fmtp_max_average_bitrate (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP, 1);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.maxaveragebitrate;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_usedtx
* Description: Gets the value of the fmtp attribute- usedtx parameter for the OPUS codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: usedtx value.
*/
sdp_result_e sdp_attr_get_fmtp_usedtx (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, tinybool* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = (tinybool)attr_p->attr.fmtp.usedtx;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_usedtx
* Description: Gets the value of the fmtp attribute- usedtx parameter for the OPUS codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: stereo value.
*/
sdp_result_e sdp_attr_get_fmtp_stereo (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, tinybool* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = (tinybool)attr_p->attr.fmtp.stereo;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_useinbandfec
* Description: Gets the value of the fmtp attribute useinbandfec parameter for the OPUS codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: useinbandfec value.
*/
sdp_result_e sdp_attr_get_fmtp_useinbandfec (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, tinybool* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = (tinybool)attr_p->attr.fmtp.useinbandfec;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_maxcodedaudiobandwidth
* Description: Gets the value of the fmtp attribute maxcodedaudiobandwidth parameter for OPUS codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: maxcodedaudiobandwidth value.
*/
char* sdp_attr_get_fmtp_maxcodedaudiobandwidth (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.fmtp.maxcodedaudiobandwidth);
}
}
/* Function: sdp_attr_get_fmtp_cbr
* Description: Gets the value of the fmtp attribute cbr parameter for the OPUS codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: cbr value.
*/
sdp_result_e sdp_attr_get_fmtp_cbr (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, tinybool* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = (tinybool)attr_p->attr.fmtp.cbr;
return (SDP_SUCCESS);
}
}
uint16_t sdp_attr_get_sctpmap_port(sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SCTPMAP, inst_num);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sctpmap port, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return 0;
} else {
return attr_p->attr.sctpmap.port;
}
}
sdp_result_e sdp_attr_get_sctpmap_streams (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SCTPMAP, inst_num);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sctpmap streams, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.sctpmap.streams;
return (SDP_SUCCESS);
}
}
sdp_result_e sdp_attr_get_sctpmap_protocol (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
char* protocol)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_SCTPMAP,
inst_num);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s sctpmap, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
sstrncpy(protocol, attr_p->attr.sctpmap.protocol, SDP_MAX_STRING_LEN+1);
}
return (SDP_SUCCESS);
}
/* Function: sdp_attr_fmtp_is_annexb_set
* Description: Gives the value of the fmtp attribute annexb type parameter
* for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
*
*
* Returns: TRUE or FALSE.
*/
tinybool sdp_attr_fmtp_is_annexb_set (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annexb);
}
}
/* Function: sdp_attr_fmtp_is_annexa_set
* Description: Gives the value of the fmtp attribute annexa type parameter
* for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
*
*
* Returns: TRUE or FALSE.
*/
tinybool sdp_attr_fmtp_is_annexa_set (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annexa);
}
}
/* Function: sdp_attr_get_fmtp_bitrate_type
* Description: Gets the value of the fmtp attribute bitrate type parameter
* for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Bitrate type value.
*/
int32_t sdp_attr_get_fmtp_bitrate_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.bitrate);
}
}
/* Function: sdp_attr_get_fmtp_qcif
* Description: Gets the value of the fmtp attribute QCIF type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: QCIF value.
*/
int32_t sdp_attr_get_fmtp_qcif (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.qcif);
}
}
/* Function: sdp_attr_get_fmtp_cif
* Description: Gets the value of the fmtp attribute CIF type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CIF value.
*/
int32_t sdp_attr_get_fmtp_cif (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.cif);
}
}
/* Function: sdp_attr_get_fmtp_sqcif
* Description: Gets the value of the fmtp attribute sqcif type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: sqcif value.
*/
int32_t sdp_attr_get_fmtp_sqcif (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.sqcif);
}
}
/* Function: sdp_attr_get_fmtp_cif4
* Description: Gets the value of the fmtp attribute CIF4 type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CIF4 value.
*/
int32_t sdp_attr_get_fmtp_cif4 (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.cif4);
}
}
/* Function: sdp_attr_get_fmtp_cif16
* Description: Gets the value of the fmtp attribute CIF16 type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CIF16 value.
*/
int32_t sdp_attr_get_fmtp_cif16 (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.cif16);
}
}
/* Function: sdp_attr_get_fmtp_maxbr
* Description: Gets the value of the fmtp attribute MAXBR type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: MAXBR value.
*/
int32_t sdp_attr_get_fmtp_maxbr (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.maxbr);
}
}
/* Function: sdp_attr_get_fmtp_custom_x
* Description: Gets the value of the fmtp attribute CUSTOM type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CUSTOM x value.
*/
int32_t sdp_attr_get_fmtp_custom_x (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.custom_x);
}
}
/* Function: sdp_attr_get_fmtp_custom_y
* Description: Gets the value of the fmtp attribute custom_y type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CUSTOM Y-AXIS value.
*/
int32_t sdp_attr_get_fmtp_custom_y (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.custom_y);
}
}
/* Function: sdp_attr_get_fmtp_custom_mpi
* Description: Gets the value of the fmtp attribute CUSTOM type parameter
* for a given Video codec.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CUSTOM MPI value.
*/
int32_t sdp_attr_get_fmtp_custom_mpi (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.custom_mpi);
}
}
/* Function: sdp_attr_get_fmtp_par_width
* Description: Gets the value of the fmtp attribute PAR (width) parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: PAR - width value.
*/
int32_t sdp_attr_get_fmtp_par_width (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.par_width);
}
}
/* Function: sdp_attr_get_fmtp_par_height
* Description: Gets the value of the fmtp attribute PAR (height) parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: PAR - height value.
*/
int32_t sdp_attr_get_fmtp_par_height (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.par_height);
}
}
/* Function: sdp_attr_get_fmtp_cpcf
* Description: Gets the value of the fmtp attribute- CPCF parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: CPCF value.
*/
int32_t sdp_attr_get_fmtp_cpcf (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.cpcf);
}
}
/* Function: sdp_attr_get_fmtp_bpp
* Description: Gets the value of the fmtp attribute- BPP parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: BPP value.
*/
int32_t sdp_attr_get_fmtp_bpp (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.bpp);
}
}
/* Function: sdp_attr_get_fmtp_hrd
* Description: Gets the value of the fmtp attribute- HRD parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: HRD value.
*/
int32_t sdp_attr_get_fmtp_hrd (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.hrd);
}
}
/* Function: sdp_attr_get_fmtp_profile
* Description: Gets the value of the fmtp attribute- PROFILE parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: PROFILE value.
*/
int32_t sdp_attr_get_fmtp_profile (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.profile);
}
}
/* Function: sdp_attr_get_fmtp_level
* Description: Gets the value of the fmtp attribute- LEVEL parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: LEVEL value.
*/
int32_t sdp_attr_get_fmtp_level (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.level);
}
}
/* Function: sdp_attr_get_fmtp_interlace
* Description: Checks if INTERLACE parameter is set.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: TRUE if INTERLACE is present and FALSE if INTERLACE is absent.
*/
tinybool sdp_attr_get_fmtp_interlace (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return FALSE;
} else {
return (attr_p->attr.fmtp.is_interlace);
}
}
/* Function: sdp_attr_get_fmtp_pack_mode
* Description: Gets the value of the fmtp attribute- packetization-mode parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: packetization-mode value in the range 0 - 2.
*/
sdp_result_e sdp_attr_get_fmtp_pack_mode (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint16_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
if (SDP_INVALID_PACKETIZATION_MODE_VALUE == attr_p->attr.fmtp.packetization_mode) {
/* packetization mode unspecified (optional) */
*val = SDP_DEFAULT_PACKETIZATION_MODE_VALUE;
} else {
*val = attr_p->attr.fmtp.packetization_mode;
}
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_level_asymmetry_allowed
* Description: Gets the value of the fmtp attribute- level-asymmetry-allowed parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: level asymmetry allowed value (0 or 1).
*/
sdp_result_e sdp_attr_get_fmtp_level_asymmetry_allowed (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint16_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.level_asymmetry_allowed;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_profile_id
* Description: Gets the value of the fmtp attribute- profile-level-id parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: profile-level-id value.
*/
const char* sdp_attr_get_fmtp_profile_id (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.fmtp.profile_level_id);
}
}
/* Function: sdp_attr_get_fmtp_param_sets
* Description: Gets the value of the fmtp attribute- parameter-sets parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: parameter-sets value.
*/
const char* sdp_attr_get_fmtp_param_sets (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.fmtp.parameter_sets);
}
}
/* Function: sdp_attr_get_fmtp_interleaving_depth
* Description: Gets the value of the fmtp attribute- interleaving_depth parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: interleaving_depth value
*/
sdp_result_e sdp_attr_get_fmtp_interleaving_depth (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint16_t* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.interleaving_depth;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_deint_buf_req
* Description: Gets the value of the fmtp attribute- deint-buf-req parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: deint-buf-req value.
*/
sdp_result_e sdp_attr_get_fmtp_deint_buf_req (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
if (attr_p->attr.fmtp.flag & SDP_DEINT_BUF_REQ_FLAG) {
*val = attr_p->attr.fmtp.deint_buf_req;
return (SDP_SUCCESS);
} else {
return (SDP_FAILURE);
}
}
}
/* Function: sdp_attr_get_fmtp_max_don_diff
* Description: Gets the value of the fmtp attribute- max-don-diff parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-don-diff value.
*/
sdp_result_e sdp_attr_get_fmtp_max_don_diff (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_don_diff;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_init_buf_time
* Description: Gets the value of the fmtp attribute- init-buf-time parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: init-buf-time value.
*/
sdp_result_e sdp_attr_get_fmtp_init_buf_time (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
if (attr_p->attr.fmtp.flag & SDP_INIT_BUF_TIME_FLAG) {
*val = attr_p->attr.fmtp.init_buf_time;
return (SDP_SUCCESS);
} else {
return (SDP_FAILURE);
}
}
}
/* Function: sdp_attr_get_fmtp_max_mbps
* Description: Gets the value of the fmtp attribute- max-mbps parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-mbps value.
*/
sdp_result_e sdp_attr_get_fmtp_max_mbps (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_mbps;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_max_fs
* Description: Gets the value of the fmtp attribute- max-fs parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-fs value.
*/
sdp_result_e sdp_attr_get_fmtp_max_fs (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_fs;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_max_fr
* Description: Gets the value of the fmtp attribute- max-fr parameter
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-fr value.
*/
sdp_result_e sdp_attr_get_fmtp_max_fr (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_fr;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_max_cpb
* Description: Gets the value of the fmtp attribute- max-cpb parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-cpb value.
*/
sdp_result_e sdp_attr_get_fmtp_max_cpb (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_cpb;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_max_dpb
* Description: Gets the value of the fmtp attribute- max-dpb parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-dpb value.
*/
sdp_result_e sdp_attr_get_fmtp_max_dpb (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_dpb;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_fmtp_max_br
* Description: Gets the value of the fmtp attribute- max-br parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-br value.
*/
sdp_result_e sdp_attr_get_fmtp_max_br (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint32_t* val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
*val = attr_p->attr.fmtp.max_br;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_fmtp_is_redundant_pic_cap
* Description: Gets the value of the fmtp attribute- redundant_pic_cap parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: redundant-pic-cap value.
*/
tinybool sdp_attr_fmtp_is_redundant_pic_cap (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.redundant_pic_cap);
}
}
/* Function: sdp_attr_get_fmtp_deint_buf_cap
* Description: Gets the value of the fmtp attribute- deint-buf-cap parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: deint-buf-cap value.
*/
sdp_result_e sdp_attr_get_fmtp_deint_buf_cap (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
if (attr_p->attr.fmtp.flag & SDP_DEINT_BUF_CAP_FLAG) {
*val = attr_p->attr.fmtp.deint_buf_cap;
return (SDP_SUCCESS);
} else {
return (SDP_FAILURE);
}
}
}
/* Function: sdp_attr_get_fmtp_max_rcmd_nalu_size
* Description: Gets the value of the fmtp attribute- max-rcmd-nalu-size parameter for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: max-rcmd-nalu-size value.
*/
sdp_result_e sdp_attr_get_fmtp_max_rcmd_nalu_size (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint32_t *val)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
if (attr_p->attr.fmtp.flag & SDP_MAX_RCMD_NALU_SIZE_FLAG) {
*val = attr_p->attr.fmtp.max_rcmd_nalu_size;
return (SDP_SUCCESS);
} else {
return (SDP_FAILURE);
}
}
}
/* Function: sdp_attr_fmtp_is_parameter_add
* Description: Gets the value of the fmtp attribute- parameter-add for H.264 codec
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: TRUE/FALSE ( parameter-add is boolean)
*/
tinybool sdp_attr_fmtp_is_parameter_add (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
/* Both 1 and SDP_FMTP_UNUSED (parameter not present) should be
* treated as TRUE, per RFC 3984, page 45 */
return (attr_p->attr.fmtp.parameter_add != 0);
}
}
/****** Following functions are get routines for Annex values
* For each Annex support, the get routine will return the boolean TRUE/FALSE
* Some Annexures for Video codecs have values defined . In those cases,
* (e.g Annex K, P ) , the return values are not boolean.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Annex value
*/
tinybool sdp_attr_get_fmtp_annex_d (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annex_d);
}
}
tinybool sdp_attr_get_fmtp_annex_f (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annex_f);
}
}
tinybool sdp_attr_get_fmtp_annex_i (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annex_i);
}
}
tinybool sdp_attr_get_fmtp_annex_j (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annex_j);
}
}
tinybool sdp_attr_get_fmtp_annex_t (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.fmtp.annex_t);
}
}
int32_t sdp_attr_get_fmtp_annex_k_val (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.annex_k_val);
}
}
int32_t sdp_attr_get_fmtp_annex_n_val (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.annex_n_val);
}
}
int32_t sdp_attr_get_fmtp_annex_p_picture_resize (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.annex_p_val_picture_resize);
}
}
int32_t sdp_attr_get_fmtp_annex_p_warp (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
} else {
return (attr_p->attr.fmtp.annex_p_val_warp);
}
}
/* Function: sdp_attr_fmtp_get_fmtp_format
* Description: Gives the value of the fmtp attribute fmtp_format
* type parameter
* for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
*
*
* Returns: Enum type sdp_fmtp_format_type_e
*/
sdp_fmtp_format_type_e sdp_attr_fmtp_get_fmtp_format (sdp_t *sdp_p,
uint16_t level, uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_FMTP,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s fmtp attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_FMTP_UNKNOWN_TYPE);
} else {
return (attr_p->attr.fmtp.fmtp_format);
}
}
/* Function: sdp_attr_get_pccodec_num_payload_types
* Description: Returns the number of payload types specified for the
* given X-pc-codec attribute. If the given attribute is not
* defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Number of payload types.
*/
uint16_t sdp_attr_get_pccodec_num_payload_types (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_X_PC_CODEC,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.pccodec.num_payloads);
}
}
/* Function: sdp_attr_get_pccodec_payload_type
* Description: Returns the value of the specified payload type for the
* given X-pc-codec attribute. If the given attribute is not
* defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* payload_num The payload number to get. Range is (1 -
* max num payloads).
* Returns: Payload type.
*/
uint16_t sdp_attr_get_pccodec_payload_type (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, uint16_t payload_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_X_PC_CODEC,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
if ((payload_num < 1) ||
(payload_num > attr_p->attr.pccodec.num_payloads)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u, "
"invalid payload number %u requested.",
sdp_p->debug_str, (unsigned)level, (unsigned)inst_num, (unsigned)payload_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
return (attr_p->attr.pccodec.payload_type[payload_num-1]);
}
}
}
/* Function: sdp_attr_add_pccodec_payload_type
* Description: Add a new value to the list of payload types specified for
* the given X-pc-codec attribute. The payload type will be
* added to the end of the list so these values should be added
* in the order they will be displayed within the attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* payload_type The payload type to add.
* Returns: SDP_SUCCESS Payload type was added successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e sdp_attr_add_pccodec_payload_type (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
uint16_t payload_type)
{
uint16_t payload_num;
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_X_PC_CODEC,
inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-pc-codec attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
} else {
payload_num = attr_p->attr.pccodec.num_payloads++;
attr_p->attr.pccodec.payload_type[payload_num] = payload_type;
return (SDP_SUCCESS);
}
}
/* Function: sdp_attr_get_xcap_first_cap_num
* Description: Gets the first capability number valid for the specified
* X-cap attribute instance. If the capability is not
* defined, zero is returned.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the capability.
* inst_num The X-cap instance number to check.
* Returns: Capability number or zero.
*/
uint16_t sdp_attr_get_xcap_first_cap_num (sdp_t *sdp_p, uint16_t level, uint16_t inst_num)
{
uint16_t cap_num=1;
uint16_t attr_count=0;
sdp_attr_t *attr_p;
sdp_mca_t *mca_p;
if (level == SDP_SESSION_LEVEL) {
for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_X_CAP) {
attr_count++;
if (attr_count == inst_num) {
return (cap_num);
} else {
cap_num += attr_p->attr.cap_p->num_payloads;
}
}
}
} else { /* Capability is at a media level */
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
sdp_p->conf_p->num_invalid_param++;
return (0);
}
for (attr_p = mca_p->media_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_X_CAP) {
attr_count++;
if (attr_count == inst_num) {
return (cap_num);
} else {
cap_num += attr_p->attr.cap_p->num_payloads;
}
}
}
} /* Attr is at a media level */
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
}
/* Function: sdp_attr_get_xcap_media_type
* Description: Returns the media type specified for the given X-cap
* attribute. If the given attribute is not defined,
* SDP_MEDIA_INVALID is returned.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* Returns: Media type or SDP_MEDIA_INVALID.
*/
sdp_media_e sdp_attr_get_xcap_media_type (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
sdp_mca_t *cap_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_MEDIA_INVALID);
} else {
cap_p = attr_p->attr.cap_p;
return (cap_p->media);
}
}
/* Function: sdp_attr_get_xcap_transport_type
* Description: Returns the transport type specified for the given X-cap
* attribute. If the given attribute is not defined,
* SDP_TRANSPORT_INVALID is returned.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* Returns: Media type or SDP_TRANSPORT_INVALID.
*/
sdp_transport_e sdp_attr_get_xcap_transport_type (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
sdp_mca_t *cap_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP,
inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_TRANSPORT_INVALID);
} else {
cap_p = attr_p->attr.cap_p;
return (cap_p->transport);
}
}
/* Function: sdp_attr_get_xcap_num_payload_types
* Description: Returns the number of payload types associated with the
* specified X-cap attribute. If the attribute is invalid,
* zero will be returned. Application must validate the
* attribute line before using this routine.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Number of payload types or zero.
*/
uint16_t sdp_attr_get_xcap_num_payload_types (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
sdp_mca_t *cap_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
cap_p = attr_p->attr.cap_p;
return (cap_p->num_payloads);
}
}
/* Function: sdp_attr_get_xcap_payload_type
* Description: Returns the payload type of the specified payload for the
* X-cap attribute line. If the attr line or payload number is
* invalid, zero will be returned. Application must validate
* the X-cap attr before using this routine.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* payload_num The payload number to retrieve. Range is
* (1 - max num payloads).
* Returns: Payload type or zero.
*/
uint16_t sdp_attr_get_xcap_payload_type (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num, uint16_t payload_num,
sdp_payload_ind_e *indicator)
{
sdp_attr_t *attr_p;
sdp_mca_t *cap_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
cap_p = attr_p->attr.cap_p;
if ((payload_num < 1) ||
(payload_num > cap_p->num_payloads)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u, "
"payload num %u invalid.", sdp_p->debug_str,
(unsigned)level, (unsigned)inst_num, (unsigned)payload_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
*indicator = cap_p->payload_indicator[payload_num-1];
return (cap_p->payload_type[payload_num-1]);
}
}
}
/* Function: sdp_attr_add_xcap_payload_type
* Description: Add a new payload type for the X-cap attribute line
* specified. The new payload type will be added at the end
* of the payload type list.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* payload_type The new payload type.
* Returns: SDP_SUCCESS or SDP_INVALID_PARAMETER
*/
sdp_result_e sdp_attr_add_xcap_payload_type(sdp_t *sdp_p, uint16_t level,
uint16_t inst_num, uint16_t payload_type,
sdp_payload_ind_e indicator)
{
sdp_attr_t *attr_p;
sdp_mca_t *cap_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_X_CAP, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-cap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
cap_p = attr_p->attr.cap_p;
cap_p->payload_indicator[cap_p->num_payloads] = indicator;
cap_p->payload_type[cap_p->num_payloads++] = payload_type;
return (SDP_SUCCESS);
}
/* Function: sdp_attr_get_cdsc_first_cap_num
* Description: Gets the first capability number valid for the specified
* CDSC attribute instance. If the capability is not
* defined, zero is returned.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the capability.
* inst_num The CDSC instance number to check.
* Returns: Capability number or zero.
*/
uint16_t sdp_attr_get_cdsc_first_cap_num(sdp_t *sdp_p, uint16_t level, uint16_t inst_num)
{
uint16_t cap_num=1;
uint16_t attr_count=0;
sdp_attr_t *attr_p;
sdp_mca_t *mca_p;
if (level == SDP_SESSION_LEVEL) {
for (attr_p = sdp_p->sess_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_CDSC) {
attr_count++;
if (attr_count == inst_num) {
return (cap_num);
} else {
cap_num += attr_p->attr.cap_p->num_payloads;
}
}
}
} else { /* Capability is at a media level */
mca_p = sdp_find_media_level(sdp_p, level);
if (mca_p == NULL) {
sdp_p->conf_p->num_invalid_param++;
return (0);
}
for (attr_p = mca_p->media_attrs_p; attr_p != NULL;
attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_CDSC) {
attr_count++;
if (attr_count == inst_num) {
return (cap_num);
} else {
cap_num += attr_p->attr.cap_p->num_payloads;
}
}
}
} /* Attr is at a media level */
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
}
/* Function: sdp_attr_get_cdsc_media_type
* Description: Returns the media type specified for the given CDSC
* attribute. If the given attribute is not defined,
* SDP_MEDIA_INVALID is returned.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* Returns: Media type or SDP_MEDIA_INVALID.
*/
sdp_media_e sdp_attr_get_cdsc_media_type(sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
sdp_mca_t *cdsc_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_MEDIA_INVALID);
} else {
cdsc_p = attr_p->attr.cap_p;
return (cdsc_p->media);
}
}
/* Function: sdp_attr_get_cdsc_transport_type
* Description: Returns the transport type specified for the given CDSC
* attribute. If the given attribute is not defined,
* SDP_TRANSPORT_INVALID is returned.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* Returns: Media type or SDP_TRANSPORT_INVALID.
*/
sdp_transport_e sdp_attr_get_cdsc_transport_type(sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
sdp_mca_t *cdsc_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC,
inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_TRANSPORT_INVALID);
} else {
cdsc_p = attr_p->attr.cap_p;
return (cdsc_p->transport);
}
}
/* Function: sdp_attr_get_cdsc_num_payload_types
* Description: Returns the number of payload types associated with the
* specified CDSC attribute. If the attribute is invalid,
* zero will be returned. Application must validate the
* attribute line before using this routine.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Number of payload types or zero.
*/
uint16_t sdp_attr_get_cdsc_num_payload_types (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
sdp_mca_t *cdsc_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
cdsc_p = attr_p->attr.cap_p;
return (cdsc_p->num_payloads);
}
}
/* Function: sdp_attr_get_cdsc_payload_type
* Description: Returns the payload type of the specified payload for the
* CDSC attribute line. If the attr line or payload number is
* invalid, zero will be returned. Application must validate
* the CDSC attr before using this routine.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* payload_num The payload number to retrieve. Range is
* (1 - max num payloads).
* Returns: Payload type or zero.
*/
uint16_t sdp_attr_get_cdsc_payload_type (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num, uint16_t payload_num,
sdp_payload_ind_e *indicator)
{
sdp_attr_t *attr_p;
sdp_mca_t *cdsc_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
cdsc_p = attr_p->attr.cap_p;
if ((payload_num < 1) ||
(payload_num > cdsc_p->num_payloads)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u, "
"payload num %u invalid.", sdp_p->debug_str,
(unsigned)level, (unsigned)inst_num, (unsigned)payload_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
*indicator = cdsc_p->payload_indicator[payload_num-1];
return (cdsc_p->payload_type[payload_num-1]);
}
}
}
/* Function: sdp_attr_add_cdsc_payload_type
* Description: Add a new payload type for the CDSC attribute line
* specified. The new payload type will be added at the end
* of the payload type list.
* Note: cap_num is not specified. It must be zero.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* payload_type The new payload type.
* Returns: SDP_SUCCESS or SDP_INVALID_PARAMETER
*/
sdp_result_e sdp_attr_add_cdsc_payload_type (sdp_t *sdp_p, uint16_t level,
uint16_t inst_num, uint16_t payload_type,
sdp_payload_ind_e indicator)
{
sdp_attr_t *attr_p;
sdp_mca_t *cdsc_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_CDSC, inst_num);
if ((attr_p == NULL) || (attr_p->attr.cap_p == NULL)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s CDSC attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
cdsc_p = attr_p->attr.cap_p;
cdsc_p->payload_indicator[cdsc_p->num_payloads] = indicator;
cdsc_p->payload_type[cdsc_p->num_payloads++] = payload_type;
return (SDP_SUCCESS);
}
/* Function: sdp_media_dynamic_payload_valid
* Description: Checks if the dynamic payload type passed in is defined
* on the media line m_line
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* payload_type Payload type to be checked
*
* Returns: TRUE or FALSE. Returns TRUE if payload type is defined on the
* media line, else returns FALSE
*/
tinybool sdp_media_dynamic_payload_valid (sdp_t *sdp_p, uint16_t payload_type,
uint16_t m_line)
{
uint16_t p_type,m_ptype;
ushort num_payload_types;
sdp_payload_ind_e ind;
tinybool payload_matches = FALSE;
tinybool result = TRUE;
if ((payload_type < SDP_MIN_DYNAMIC_PAYLOAD) ||
(payload_type > SDP_MAX_DYNAMIC_PAYLOAD)) {
return FALSE;
}
num_payload_types =
sdp_get_media_num_payload_types(sdp_p, m_line);
for(p_type=1; p_type <=num_payload_types;p_type++){
m_ptype = (uint16_t)sdp_get_media_payload_type(sdp_p,
m_line, p_type, &ind);
if (payload_type == m_ptype) {
payload_matches = TRUE;
break;
}
}
if (!payload_matches) {
return FALSE;
}
return (result);
}
/* Function: sdp_attr_get_rtr_confirm
* Description: Returns the value of the rtr attribute confirm
* parameter specified for the given attribute. Returns TRUE if
* the confirm parameter is specified.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Boolean value.
*/
tinybool sdp_attr_get_rtr_confirm (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_RTR, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s %s attribute, level %u instance %u "
"not found.", sdp_p->debug_str,
sdp_get_attr_name(SDP_ATTR_RTR), (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.rtr.confirm);
}
}
sdp_mediadir_role_e sdp_attr_get_comediadir_role (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_DIRECTION, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Comediadir role attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_MEDIADIR_ROLE_UNKNOWN);
} else {
return (attr_p->attr.comediadir.role);
}
}
/* Function: sdp_attr_get_silencesupp_enabled
* Description: Returns the value of the silencesupp attribute enable
* parameter specified for the given attribute. Returns TRUE if
* the confirm parameter is specified.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Boolean value.
*/
tinybool sdp_attr_get_silencesupp_enabled (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SILENCESUPP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s silenceSuppEnable attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (FALSE);
} else {
return (attr_p->attr.silencesupp.enabled);
}
}
/* Function: sdp_attr_get_silencesupp_timer
* Description: Returns the value of the silencesupp attribute timer
* parameter specified for the given attribute. null_ind
* is set to TRUE if no value was specified, but instead the
* null "-" value was specified.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: 16-bit timer value
* boolean null_ind
*/
uint16_t sdp_attr_get_silencesupp_timer (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
tinybool *null_ind)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SILENCESUPP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s silenceTimer attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
*null_ind = attr_p->attr.silencesupp.timer_null;
return (attr_p->attr.silencesupp.timer);
}
}
/* Function: sdp_attr_get_silencesupp_pref
* Description: Sets the silencesupp supppref value
* If this parameter is TRUE, the confirm parameter will be
* specified when the SDP description is built.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* confirm New qos confirm parameter.
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_silencesupp_pref_e sdp_attr_get_silencesupp_pref (sdp_t *sdp_p,
uint16_t level, uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SILENCESUPP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s silence suppPref attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_SILENCESUPP_PREF_UNKNOWN);
} else {
return (attr_p->attr.silencesupp.pref);
}
}
/* Function: sdp_attr_get_silencesupp_siduse
* Description: Returns the value of the silencesupp attribute siduse
* parameter specified for the given attribute. If the given
* attribute is not defined, SDP_QOS_STRENGTH_UNKNOWN is
* returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: silencesupp siduse enum.
*/
sdp_silencesupp_siduse_e sdp_attr_get_silencesupp_siduse (sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SILENCESUPP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s silence sidUse attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_SILENCESUPP_SIDUSE_UNKNOWN);
} else {
return (attr_p->attr.silencesupp.siduse);
}
}
/* Function: sdp_attr_get_silencesupp_fxnslevel
* Description: Returns the value of the silencesupp attribute fxns
* (fixed noise) parameter specified for the given attribute.
* null_ind is set to TRUE if no value was specified,
* but instead the null "-" value was specified.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: 7-bit fxns value
* boolean null_ind
*/
uint8_t sdp_attr_get_silencesupp_fxnslevel (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
tinybool *null_ind)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SILENCESUPP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s silence fxnslevel attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
*null_ind = attr_p->attr.silencesupp.fxnslevel_null;
return (attr_p->attr.silencesupp.fxnslevel);
}
}
/* Function: sdp_attr_get_mptime_num_intervals
* Description: Returns the number of intervals specified for the
* given mptime attribute. If the given attribute is not
* defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Number of intervals.
*/
uint16_t sdp_attr_get_mptime_num_intervals (
sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num) {
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_MPTIME, inst_num);
if (attr_p != NULL) {
return attr_p->attr.mptime.num_intervals;
}
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s mptime attribute, level %u instance %u not found.",
sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return 0;
}
/* Function: sdp_attr_get_mptime_interval
* Description: Returns the value of the specified interval for the
* given mptime attribute. If the given attribute is not
* defined, zero is returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* interval_num The interval number to get. Range is (1 -
* max num payloads).
* Returns: Interval.
*/
uint16_t sdp_attr_get_mptime_interval (
sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num,
uint16_t interval_num) {
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_MPTIME, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s mptime attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return 0;
}
if ((interval_num<1) || (interval_num>attr_p->attr.mptime.num_intervals)) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s mptime attribute, level %u instance %u, "
"invalid interval number %u requested.",
sdp_p->debug_str, (unsigned)level, (unsigned)inst_num, (unsigned)interval_num);
}
sdp_p->conf_p->num_invalid_param++;
return 0;
}
return attr_p->attr.mptime.intervals[interval_num-1];
}
/* Function: sdp_attr_add_mptime_interval
* Description: Add a new value to the list of intervals specified for
* the given mptime attribute. The interval will be
* added to the end of the list so these values should be added
* in the order they will be displayed within the attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* mp_interval The interval to add.
* Returns: SDP_SUCCESS Interval was added successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
* SDP_INVALID_SDP_PTR Supplied SDP pointer is invalid
*/
sdp_result_e sdp_attr_add_mptime_interval (
sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num,
uint16_t mp_interval) {
uint16_t interval_num;
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num, SDP_ATTR_MPTIME, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s mptime attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_INVALID_PARAMETER;
}
interval_num = attr_p->attr.mptime.num_intervals;
if (interval_num>=SDP_MAX_PAYLOAD_TYPES) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s mptime attribute, level %u instance %u "
"exceeds maximum length.",
sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_INVALID_PARAMETER;
}
attr_p->attr.mptime.intervals[interval_num] = mp_interval;
++attr_p->attr.mptime.num_intervals;
return SDP_SUCCESS;
}
/* Function: sdp_get_group_attr
* Description: Returns the attribute parameter from the a=group:<>
* line. If no attrib has been set ,
* SDP_GROUP_ATTR_UNSUPPORTED will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level SDP_SESSION_LEVEL
* Returns: Valid attrib value or SDP_GROUP_ATTR_UNSUPPORTED.
*/
sdp_group_attr_e sdp_get_group_attr (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_GROUP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Group (a= group line) attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_GROUP_ATTR_UNSUPPORTED);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) {
SDP_PRINT("%s Stream data group attr field is :%s ",
sdp_p->debug_str,
sdp_get_group_attr_name(attr_p->attr.stream_data.group_attr) );
}
return (attr_p->attr.stream_data.group_attr);
}
}
/* Function: sdp_get_group_num_id
* Description: Returns the number of ids from the a=group:<> line.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level SDP_SESSION_LEVEL
* Returns: Num of group ids present or 0 if there is an error.
*/
uint16_t sdp_get_group_num_id (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_GROUP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s a=group level attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (0);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) {
SDP_PRINT("%s Stream data group attr - num of ids is :%u ",
sdp_p->debug_str,
(unsigned)attr_p->attr.stream_data.num_group_id);
}
}
return (attr_p->attr.stream_data.num_group_id);
}
/* Function: sdp_get_group_id
* Description: Returns the group id from the a=group:<> line.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level SDP_SESSION_LEVEL
* id_num Number of the id to retrieve. The range is (1 -
* SDP_MAX_GROUP_STREAM_ID)
* Returns: Value of the group id at the index specified or
* NULL if an error
*/
const char* sdp_get_group_id (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num, uint16_t id_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_GROUP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s a=group level attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) {
SDP_PRINT("%s Stream data group attr - num of ids is :%u ",
sdp_p->debug_str,
(unsigned)attr_p->attr.stream_data.num_group_id);
}
if ((id_num < 1) || (id_num > attr_p->attr.stream_data.num_group_id)) {
return (NULL);
}
}
return (attr_p->attr.stream_data.group_ids[id_num-1]);
}
/* Function: sdp_attr_get_x_sidin
* Description: Returns the attribute parameter from the a=X-sidin:<>
* line. If no attrib has been set NULL will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level media level index
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Pointer to sidin or NULL.
*/
const char* sdp_attr_get_x_sidin (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_X_SIDIN, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-sidin attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) {
SDP_PRINT("%s Stream X-sidin attr field is :%s ",
sdp_p->debug_str,
attr_p->attr.stream_data.x_sidin);
}
return (attr_p->attr.stream_data.x_sidin);
}
}
/* Function: sdp_attr_get_x_sidout
* Description: Returns the attribute parameter from the a=X-sidout:<>
* line. If no attrib has been set NULL will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level media level index
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Pointer to sidout or NULL.
*/
const char* sdp_attr_get_x_sidout (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_X_SIDOUT, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-sidout attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) {
SDP_PRINT("%s Stream X-sidout attr field is :%s ",
sdp_p->debug_str,
attr_p->attr.stream_data.x_sidout);
}
return (attr_p->attr.stream_data.x_sidout);
}
}
/* Function: sdp_attr_get_x_confid
* Description: Returns the attribute parameter from the a=X-confid:<>
* line. If no attrib has been set NULL will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level media level index
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Pointer to confid or NULL.
*/
const char* sdp_attr_get_x_confid (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_X_CONFID, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s X-confid attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
if (sdp_p->debug_flag[SDP_DEBUG_TRACE]) {
SDP_PRINT("%s Stream X-confid attr field is :%s ",
sdp_p->debug_str,
attr_p->attr.stream_data.x_confid);
}
return (attr_p->attr.stream_data.x_confid);
}
}
/* Function: sdp_get_source_filter_mode
* Description: Gets the filter mode in internal representation
* Parameters: sdp_p The SDP handle which contains the attributes
* level SDP_SESSION_LEVEL/m-line number
* inst_num The attribute instance number
* Returns: Filter mode (incl/excl/not present)
*/
sdp_src_filter_mode_e
sdp_get_source_filter_mode (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SOURCE_FILTER, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Source filter attribute, level %u, "
"instance %u not found", sdp_p->debug_str,
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_FILTER_MODE_NOT_PRESENT);
}
return (attr_p->attr.source_filter.mode);
}
/* Function: sdp_get_filter_destination_attributes
* Description: Gets the destination address parameters
* Parameters: Network type (optional), destination address type
* (optional), and destination address (mandatory) variables
* which gets updated.
* Returns: SDP_SUCCESS or SDP_INVALID_PARAMETER/SDP_INVALID_SDP_PTR
*/
sdp_result_e
sdp_get_filter_destination_attributes (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, sdp_nettype_e *nettype,
sdp_addrtype_e *addrtype,
char *dest_addr)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SOURCE_FILTER, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Source filter attribute, level %u instance %u "
"not found", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
if (nettype) {
*nettype = attr_p->attr.source_filter.nettype;
}
if (addrtype) {
*addrtype = attr_p->attr.source_filter.addrtype;
}
sstrncpy(dest_addr, attr_p->attr.source_filter.dest_addr,
SDP_MAX_STRING_LEN+1);
return (SDP_SUCCESS);
}
/* Function: sdp_get_filter_source_address_count
* Description: Gets the number of source addresses in the list
* Parameters: sdp_p The SDP handle which contains the attributes
* level SDP_SESSION_LEVEL/m-line number
* inst_num The attribute instance number
* Returns: Source-list count
*/
int32_t
sdp_get_filter_source_address_count (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SOURCE_FILTER, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Source filter attribute, level %u instance %u "
"not found", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_VALUE);
}
return (attr_p->attr.source_filter.num_src_addr);
}
/* Function: sdp_get_filter_source_address
* Description: Gets one of the source address that is indexed by the user
* Parameters: sdp_p The SDP handle which contains the attributes
* level SDP_SESSION_LEVEL/m-line number
* inst_num The attribute instance number
* src_addr_id User provided index (value in range between
* 0 to (SDP_MAX_SRC_ADDR_LIST-1) which obtains
* the source addr corresponding to it.
* src_addr The user provided variable which gets updated
* with source address corresponding to the index
*/
sdp_result_e
sdp_get_filter_source_address (sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num, uint16_t src_addr_id,
char *src_addr)
{
sdp_attr_t *attr_p;
src_addr[0] = '\0';
if (src_addr_id >= SDP_MAX_SRC_ADDR_LIST) {
return (SDP_INVALID_PARAMETER);
}
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SOURCE_FILTER, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s Source filter attribute, level %u instance %u "
"not found", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
if (src_addr_id >= attr_p->attr.source_filter.num_src_addr) {
return (SDP_INVALID_PARAMETER);
}
sstrncpy(src_addr, attr_p->attr.source_filter.src_list[src_addr_id],
SDP_MAX_STRING_LEN+1);
return (SDP_SUCCESS);
}
sdp_rtcp_unicast_mode_e
sdp_get_rtcp_unicast_mode(sdp_t *sdp_p, uint16_t level, uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_RTCP_UNICAST, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s RTCP Unicast attribute, level %u, "
"instance %u not found", sdp_p->debug_str,
(unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_RTCP_UNICAST_MODE_NOT_PRESENT);
}
return ((sdp_rtcp_unicast_mode_e)attr_p->attr.u32_val);
}
/* Function: sdp_attr_get_sdescriptions_tag
* Description: Returns the value of the sdescriptions tag
* parameter specified for the given attribute.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: Tag value or SDP_INVALID_VALUE (-2) if error encountered.
*/
int32_t
sdp_attr_get_sdescriptions_tag (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute tag, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_INVALID_VALUE;
} else {
return attr_p->attr.srtp_context.tag;
}
}
/* Function: sdp_attr_get_sdescriptions_crypto_suite
* Description: Returns the value of the sdescriptions crypto suite
* parameter specified for the given attribute. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return the suite. If it's not,
* try to find the version 9. This assumes you cannot have both
* versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: SDP_SRTP_UNKNOWN_CRYPTO_SUITE is returned if an error was
* encountered otherwise the crypto suite is returned.
*/
sdp_srtp_crypto_suite_t
sdp_attr_get_sdescriptions_crypto_suite (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* There's no version 2 so now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute suite, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_SRTP_UNKNOWN_CRYPTO_SUITE;
}
}
return attr_p->attr.srtp_context.suite;
}
/* Function: sdp_attr_get_sdescriptions_key
* Description: Returns the value of the sdescriptions master key
* parameter specified for the given attribute. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return the key. If it's not,
* try to find the version 9. This assumes you cannot have both
* versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: NULL if error encountered or master key salt string
*/
const char*
sdp_attr_get_sdescriptions_key (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute key, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return NULL;
}
}
return (char*)attr_p->attr.srtp_context.master_key;
}
/* Function: sdp_attr_get_sdescriptions_salt
* Description: Returns the value of the sdescriptions master salt
* parameter specified for the given attribute. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return the salt. If it's not,
* try to find the version 9. This assumes you cannot have both
* versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: NULL if error encountered or master key salt string
*/
const char*
sdp_attr_get_sdescriptions_salt (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute salt, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return NULL;
}
}
return (char*) attr_p->attr.srtp_context.master_salt;
}
/* Function: sdp_attr_get_sdescriptions_lifetime
* Description: Returns the value of the sdescriptions lifetime
* parameter specified for the given attribute.Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return the lifetime. If it's
* not, try to find the version 9. This assumes you cannot have
* both versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: NULL if error encountered or lifetime string
*/
const char*
sdp_attr_get_sdescriptions_lifetime (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first. */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute lifetime, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return NULL;
}
}
return (char*)attr_p->attr.srtp_context.master_key_lifetime;
}
/* Function: sdp_attr_get_sdescriptions_mki
* Description: Returns the value of the sdescriptions MKI value and length
* parameter of the specified attribute instance. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return the MKI. If it's
* not, try to find version 9. This assumes you cannot have
* both versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* mki_value application provided pointer that on exit
* is set to the MKI value string if one exists.
* mki_length application provided pointer that on exit
* is set to the MKI length if one exists.
* Returns: SDP_SUCCESS no errors encountered otherwise sdp error
* based upon the specific error.
*/
sdp_result_e
sdp_attr_get_sdescriptions_mki (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num,
const char **mki_value,
uint16_t *mki_length)
{
sdp_attr_t *attr_p;
*mki_value = NULL;
*mki_length = 0;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_INVALID_PARAMETER;
}
}
*mki_value = (char*)attr_p->attr.srtp_context.mki;
*mki_length = attr_p->attr.srtp_context.mki_size_bytes;
return SDP_SUCCESS;
}
/* Function: sdp_attr_get_sdescriptions_session_params
* Description: Returns the unparsed session parameters string. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return session parameters. If
* it's not, try to find version 9. This assumes you cannot have
* both versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: NULL if no session parameters were received in the sdp,
* otherwise returns a pointer to the start of the session
* parameters string. Note that the calling function should
* not free the returned pointer.
*/
const char*
sdp_attr_get_sdescriptions_session_params (sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute session params, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return NULL;
}
}
return attr_p->attr.srtp_context.session_parameters;
}
/* Function: sdp_attr_get_sdescriptions_key_size
* Description: Returns the master key size. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return key size. If
* it's not, try to find version 9. This assumes you cannot have
* both versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: 0 (SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN) if error was
* encountered, otherwise key size.
*/
unsigned char
sdp_attr_get_sdescriptions_key_size (sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN;
}
}
return attr_p->attr.srtp_context.master_key_size_bytes;
}
/* Function: sdp_attr_get_sdescriptions_salt_size
* Description: Returns the salt key size. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return salt size. If
* it's not, try to find version 9. This assumes you cannot have
* both versions in the same SDP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: 0 (SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN) if error was
* encountered, otherwise salt size.
*/
unsigned char
sdp_attr_get_sdescriptions_salt_size (sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_SDESCRIPTIONS_KEY_SIZE_UNKNOWN;
}
}
return attr_p->attr.srtp_context.master_salt_size_bytes;
}
/* Function: sdp_attr_get_srtp_crypto_selection_flags
* Description: Returns the selection flags. Note that
* this is a common api for both version 2 and version 9
* sdescriptions. It has no knowledge which version is being
* used so it will first try to find if a version 2 sdescriptions
* attribute is present. If it is, return selection flags. If
* it's not, try to find version 9. This assumes you cannot have
* both versions in the same SDP.
* Currently only necessary for MGCP.
*
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* cap_num The capability number associated with the
* attribute if any. If none, should be zero.
* inst_num The attribute instance number to check.
* Returns: 0 (SDP_SRTP_CRYPTO_SELECTION_FLAGS_UNKNOWN) if error was
* encountered, otherwise selection flags.
*/
unsigned long
sdp_attr_get_srtp_crypto_selection_flags (sdp_t *sdp_p,
uint16_t level,
uint8_t cap_num,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
/* Try version 2 first */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SRTP_CONTEXT, inst_num);
if (attr_p == NULL) {
/* Couldn't find version 2 now try version 9 */
attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_SDESCRIPTIONS, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s srtp attribute MKI, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_SRTP_CRYPTO_SELECTION_FLAGS_UNKNOWN;
}
}
return attr_p->attr.srtp_context.selection_flags;
}
/* Function: sdp_find_rtcp_fb_attr
* Description: Helper to find the nth instance of a rtcp-fb attribute of
* the specified feedback type.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* fb_type The feedback type to look for.
* inst_num The attribute instance number to check.
* Returns: Pointer to the attribute, or NULL if not found.
*/
sdp_attr_t *
sdp_find_rtcp_fb_attr (sdp_t *sdp_p,
uint16_t level,
uint16_t payload_type,
sdp_rtcp_fb_type_e fb_type,
uint16_t inst_num)
{
uint16_t attr_count=0;
sdp_mca_t *mca_p;
sdp_attr_t *attr_p;
mca_p = sdp_find_media_level(sdp_p, level);
if (!mca_p) {
return (NULL);
}
for (attr_p = mca_p->media_attrs_p; attr_p; attr_p = attr_p->next_p) {
if (attr_p->type == SDP_ATTR_RTCP_FB &&
(attr_p->attr.rtcp_fb.payload_num == payload_type ||
attr_p->attr.rtcp_fb.payload_num == SDP_ALL_PAYLOADS) &&
attr_p->attr.rtcp_fb.feedback_type == fb_type) {
attr_count++;
if (attr_count == inst_num) {
return (attr_p);
}
}
}
return NULL;
}
/* Function: sdp_attr_get_rtcp_fb_ack
* Description: Returns the value of the rtcp-fb:...ack attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* inst_num The attribute instance number to check.
* Returns: ACK type (SDP_RTCP_FB_ACK_NOT_FOUND if not present)
*/
sdp_rtcp_fb_ack_type_e
sdp_attr_get_rtcp_fb_ack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type,
SDP_RTCP_FB_ACK, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)payload_type, (unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_RTCP_FB_ACK_NOT_FOUND;
}
return (attr_p->attr.rtcp_fb.param.ack);
}
/* Function: sdp_attr_get_rtcp_fb_nack
* Description: Returns the value of the rtcp-fb:...nack attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* inst_num The attribute instance number to check.
* Returns: NACK type (SDP_RTCP_FB_NACK_NOT_FOUND if not present)
*/
sdp_rtcp_fb_nack_type_e
sdp_attr_get_rtcp_fb_nack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type,
SDP_RTCP_FB_NACK, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)payload_type, (unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_RTCP_FB_NACK_NOT_FOUND;
}
return (attr_p->attr.rtcp_fb.param.nack);
}
/* Function: sdp_attr_get_rtcp_fb_trr_int
* Description: Returns the value of the rtcp-fb:...trr-int attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* inst_num The attribute instance number to check.
* Returns: trr-int interval (0xFFFFFFFF if not found)
*/
uint32_t
sdp_attr_get_rtcp_fb_trr_int(sdp_t *sdp_p, uint16_t level,
uint16_t payload_type, uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type,
SDP_RTCP_FB_TRR_INT, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)payload_type, (unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return 0xFFFFFFFF;
}
return (attr_p->attr.rtcp_fb.param.trr_int);
}
/* Function: sdp_attr_get_rtcp_fb_remb_enabled
* Description: Returns true if rtcp-fb:...goog-remb attribute exists
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* Returns: true if rtcp-fb:...goog-remb exists
*/
tinybool
sdp_attr_get_rtcp_fb_remb_enabled(sdp_t *sdp_p,
uint16_t level,
uint16_t payload_type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type,
SDP_RTCP_FB_REMB,
1); // always check for 1st instance
return (attr_p? TRUE : FALSE); // either exists or not
}
/* Function: sdp_attr_get_rtcp_fb_transport_cc_enabled
* Description: Returns true if rtcp-fb:...transport-cc attribute exists
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* Returns: true if rtcp-fb:...transport-cc exists
*/
tinybool
sdp_attr_get_rtcp_fb_transport_cc_enabled(sdp_t *sdp_p,
uint16_t level,
uint16_t payload_type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type,
SDP_RTCP_FB_TRANSPORT_CC,
1); // always check for 1st instance
return (attr_p? TRUE : FALSE); // either exists or not
}
/* Function: sdp_attr_get_rtcp_fb_ccm
* Description: Returns the value of the rtcp-fb:...ccm attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* payload_type The payload to get the attribute for
* inst_num The attribute instance number to check.
* Returns: CCM type (SDP_RTCP_FB_CCM_NOT_FOUND if not present)
*/
sdp_rtcp_fb_ccm_type_e
sdp_attr_get_rtcp_fb_ccm(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_rtcp_fb_attr(sdp_p, level, payload_type,
SDP_RTCP_FB_CCM, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp-fb attribute, level %u, pt %u, "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)payload_type, (unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return SDP_RTCP_FB_CCM_NOT_FOUND;
}
return (attr_p->attr.rtcp_fb.param.ccm);
}
/* Function: sdp_attr_set_rtcp_fb_ack
* Description: Sets the value of an rtcp-fb:...ack attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* payload_type The value to set the payload type to for
* this attribute. Can be SDP_ALL_PAYLOADS.
* inst_num The attribute instance number to check.
* type The ack type to indicate
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_rtcp_fb_ack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst,
sdp_rtcp_fb_ack_type_e type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp_fb ack attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.rtcp_fb.payload_num = payload_type;
attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_ACK;
attr_p->attr.rtcp_fb.param.ack = type;
attr_p->attr.rtcp_fb.extra[0] = '\0';
return (SDP_SUCCESS);
}
/* Function: sdp_attr_set_rtcp_fb_nack
* Description: Sets the value of an rtcp-fb:...nack attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* payload_type The value to set the payload type to for
* this attribute. Can be SDP_ALL_PAYLOADS.
* inst_num The attribute instance number to check.
* type The nack type to indicate
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_rtcp_fb_nack(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst,
sdp_rtcp_fb_nack_type_e type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp_fb nack attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.rtcp_fb.payload_num = payload_type;
attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_NACK;
attr_p->attr.rtcp_fb.param.nack = type;
attr_p->attr.rtcp_fb.extra[0] = '\0';
return (SDP_SUCCESS);
}
/* Function: sdp_attr_set_rtcp_fb_trr_int
* Description: Sets the value of an rtcp-fb:...trr-int attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* payload_type The value to set the payload type to for
* this attribute. Can be SDP_ALL_PAYLOADS.
* inst_num The attribute instance number to check.
* interval The interval time to indicate
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_rtcp_fb_trr_int(sdp_t *sdp_p, uint16_t level, uint16_t payload_type,
uint16_t inst, uint32_t interval)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp_fb trr-int attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.rtcp_fb.payload_num = payload_type;
attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_TRR_INT;
attr_p->attr.rtcp_fb.param.trr_int = interval;
attr_p->attr.rtcp_fb.extra[0] = '\0';
return (SDP_SUCCESS);
}
/* Function: sdp_attr_set_rtcp_fb_remb
* Description: Sets the value of an rtcp-fb:...goog-remb attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* payload_type The value to set the payload type to for
* this attribute. Can be SDP_ALL_PAYLOADS.
* inst_num The attribute instance number to check.
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_rtcp_fb_remb(sdp_t *sdp_p, uint16_t level, uint16_t payload_type,
uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp_fb goog-remb attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.rtcp_fb.payload_num = payload_type;
attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_REMB;
return (SDP_SUCCESS);
}
/* Function: sdp_attr_set_rtcp_fb_transport_cc
* Description: Sets the value of an rtcp-fb:...transport-cc attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* payload_type The value to set the payload type to for
* this attribute. Can be SDP_ALL_PAYLOADS.
* inst_num The attribute instance number to check.
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_rtcp_fb_transport_cc(sdp_t *sdp_p, uint16_t level, uint16_t payload_type,
uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp_fb transport-cc attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.rtcp_fb.payload_num = payload_type;
attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_TRANSPORT_CC;
return (SDP_SUCCESS);
}
/* Function: sdp_attr_set_rtcp_fb_ccm
* Description: Sets the value of an rtcp-fb:...ccm attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* payload_type The value to set the payload type to for
* this attribute. Can be SDP_ALL_PAYLOADS.
* inst_num The attribute instance number to check.
* type The ccm type to indicate
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_rtcp_fb_ccm(sdp_t *sdp_p, uint16_t level, uint16_t payload_type, uint16_t inst,
sdp_rtcp_fb_ccm_type_e type)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_RTCP_FB, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s rtcp_fb ccm attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.rtcp_fb.payload_num = payload_type;
attr_p->attr.rtcp_fb.feedback_type = SDP_RTCP_FB_CCM;
attr_p->attr.rtcp_fb.param.ccm = type;
attr_p->attr.rtcp_fb.extra[0] = '\0';
return (SDP_SUCCESS);
}
/* Function: sdp_attr_get_extmap_uri
* Description: Returns a pointer to the value of the encoding name
* parameter specified for the given attribute. Value is
* returned as a const ptr and so cannot be modified by the
* application. If the given attribute is not defined, NULL
* will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* Returns: Codec value or SDP_CODEC_INVALID.
*/
const char *sdp_attr_get_extmap_uri(sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_EXTMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s extmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return (NULL);
} else {
return (attr_p->attr.extmap.uri);
}
}
/* Function: sdp_attr_get_extmap_id
* Description: Returns the id of the extmap specified for the given
* attribute. If the given attribute is not defined, 0xFFFF
* will be returned.
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to check for the attribute.
* inst_num The attribute instance number to check.
* Returns: The id of the extmap attribute.
*/
uint16_t sdp_attr_get_extmap_id(sdp_t *sdp_p, uint16_t level,
uint16_t inst_num)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_EXTMAP, inst_num);
if (attr_p == NULL) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s extmap attribute, level %u instance %u "
"not found.", sdp_p->debug_str, (unsigned)level, (unsigned)inst_num);
}
sdp_p->conf_p->num_invalid_param++;
return 0xFFFF;
} else {
return (attr_p->attr.extmap.id);
}
}
/* Function: sdp_attr_set_extmap
* Description: Sets the value of an rtcp-fb:...ccm attribute
* Parameters: sdp_p The SDP handle returned by sdp_init_description.
* level The level to set the attribute.
* id The id to set the attribute.
* uri The uri to set the attribute.
* inst The attribute instance number to check.
* Returns: SDP_SUCCESS Attribute param was set successfully.
* SDP_INVALID_PARAMETER Specified attribute is not defined.
*/
sdp_result_e
sdp_attr_set_extmap(sdp_t *sdp_p, uint16_t level, uint16_t id, const char* uri, uint16_t inst)
{
sdp_attr_t *attr_p;
attr_p = sdp_find_attr(sdp_p, level, 0, SDP_ATTR_EXTMAP, inst);
if (!attr_p) {
if (sdp_p->debug_flag[SDP_DEBUG_ERRORS]) {
SDPLogError(logTag, "%s extmap attribute, level %u "
"instance %u not found.", sdp_p->debug_str, (unsigned)level,
(unsigned)inst);
}
sdp_p->conf_p->num_invalid_param++;
return (SDP_INVALID_PARAMETER);
}
attr_p->attr.extmap.id = id;
sstrncpy(attr_p->attr.extmap.uri, uri, SDP_MAX_STRING_LEN+1);
return (SDP_SUCCESS);
}
const char *sdp_attr_get_msid_identifier(sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst)
{
sdp_attr_t *attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_MSID, inst);
if (!attr_p) {
return NULL;
}
return attr_p->attr.msid.identifier;
}
const char *sdp_attr_get_msid_appdata(sdp_t *sdp_p, uint16_t level,
uint8_t cap_num, uint16_t inst)
{
sdp_attr_t *attr_p = sdp_find_attr(sdp_p, level, cap_num,
SDP_ATTR_MSID, inst);
if (!attr_p) {
return NULL;
}
return attr_p->attr.msid.appdata;
}