Source code
Revision control
Copy as Markdown
Other Tools
/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#ifndef SPA_AUDIO_DSD_UTILS_H
#define SPA_AUDIO_DSD_UTILS_H
#ifdef __cplusplus
extern "C" {
#endif
/**
* \addtogroup spa_param
* \{
*/
#include <spa/pod/parser.h>
#include <spa/pod/builder.h>
#include <spa/param/format-utils.h>
#include <spa/param/audio/format.h>
#ifndef SPA_API_AUDIO_DSD_UTILS
#ifdef SPA_API_IMPL
#define SPA_API_AUDIO_DSD_UTILS SPA_API_IMPL
#else
#define SPA_API_AUDIO_DSD_UTILS static inline
#endif
#endif
SPA_API_AUDIO_DSD_UTILS int
spa_format_audio_dsd_parse(const struct spa_pod *format, struct spa_audio_info_dsd *info)
{
struct spa_pod *position = NULL;
int res;
info->flags = 0;
res = spa_pod_parse_object(format,
SPA_TYPE_OBJECT_Format, NULL,
SPA_FORMAT_AUDIO_bitorder, SPA_POD_OPT_Id(&info->bitorder),
SPA_FORMAT_AUDIO_interleave, SPA_POD_OPT_Int(&info->interleave),
SPA_FORMAT_AUDIO_rate, SPA_POD_OPT_Int(&info->rate),
SPA_FORMAT_AUDIO_channels, SPA_POD_OPT_Int(&info->channels),
SPA_FORMAT_AUDIO_position, SPA_POD_OPT_Pod(&position));
if (position == NULL ||
!spa_pod_copy_array(position, SPA_TYPE_Id, info->position, SPA_AUDIO_MAX_CHANNELS))
SPA_FLAG_SET(info->flags, SPA_AUDIO_FLAG_UNPOSITIONED);
return res;
}
SPA_API_AUDIO_DSD_UTILS struct spa_pod *
spa_format_audio_dsd_build(struct spa_pod_builder *builder, uint32_t id,
const struct spa_audio_info_dsd *info)
{
struct spa_pod_frame f;
spa_pod_builder_push_object(builder, &f, SPA_TYPE_OBJECT_Format, id);
spa_pod_builder_add(builder,
SPA_FORMAT_mediaType, SPA_POD_Id(SPA_MEDIA_TYPE_audio),
SPA_FORMAT_mediaSubtype, SPA_POD_Id(SPA_MEDIA_SUBTYPE_dsd),
0);
if (info->bitorder != SPA_PARAM_BITORDER_unknown)
spa_pod_builder_add(builder,
SPA_FORMAT_AUDIO_bitorder, SPA_POD_Id(info->bitorder), 0);
if (info->interleave != 0)
spa_pod_builder_add(builder,
SPA_FORMAT_AUDIO_interleave, SPA_POD_Int(info->interleave), 0);
if (info->rate != 0)
spa_pod_builder_add(builder,
SPA_FORMAT_AUDIO_rate, SPA_POD_Int(info->rate), 0);
if (info->channels != 0) {
spa_pod_builder_add(builder,
SPA_FORMAT_AUDIO_channels, SPA_POD_Int(info->channels), 0);
if (!SPA_FLAG_IS_SET(info->flags, SPA_AUDIO_FLAG_UNPOSITIONED)) {
spa_pod_builder_add(builder, SPA_FORMAT_AUDIO_position,
SPA_POD_Array(sizeof(uint32_t), SPA_TYPE_Id,
info->channels, info->position), 0);
}
}
return (struct spa_pod*)spa_pod_builder_pop(builder, &f);
}
/**
* \}
*/
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SPA_AUDIO_DSD_UTILS_H */