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/*
* Copyright 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#import "RTCRtpCodecParameters+Private.h"
#import "RTCMediaStreamTrack.h"
#import "helpers/NSString+StdString.h"
#include "media/base/media_constants.h"
#include "rtc_base/checks.h"
const NSString * const kRTCRtxCodecName = @(cricket::kRtxCodecName);
const NSString * const kRTCRedCodecName = @(cricket::kRedCodecName);
const NSString * const kRTCUlpfecCodecName = @(cricket::kUlpfecCodecName);
const NSString * const kRTCFlexfecCodecName = @(cricket::kFlexfecCodecName);
const NSString * const kRTCOpusCodecName = @(cricket::kOpusCodecName);
const NSString * const kRTCL16CodecName = @(cricket::kL16CodecName);
const NSString * const kRTCG722CodecName = @(cricket::kG722CodecName);
const NSString * const kRTCIlbcCodecName = @(cricket::kIlbcCodecName);
const NSString * const kRTCPcmuCodecName = @(cricket::kPcmuCodecName);
const NSString * const kRTCPcmaCodecName = @(cricket::kPcmaCodecName);
const NSString * const kRTCDtmfCodecName = @(cricket::kDtmfCodecName);
const NSString * const kRTCComfortNoiseCodecName =
@(cricket::kComfortNoiseCodecName);
const NSString * const kRTCVp8CodecName = @(cricket::kVp8CodecName);
const NSString * const kRTCVp9CodecName = @(cricket::kVp9CodecName);
const NSString * const kRTCH264CodecName = @(cricket::kH264CodecName);
@implementation RTC_OBJC_TYPE (RTCRtpCodecParameters)
@synthesize payloadType = _payloadType;
@synthesize name = _name;
@synthesize kind = _kind;
@synthesize clockRate = _clockRate;
@synthesize numChannels = _numChannels;
@synthesize parameters = _parameters;
- (instancetype)init {
webrtc::RtpCodecParameters nativeParameters;
return [self initWithNativeParameters:nativeParameters];
}
- (instancetype)initWithNativeParameters:
(const webrtc::RtpCodecParameters &)nativeParameters {
self = [super init];
if (self) {
_payloadType = nativeParameters.payload_type;
_name = [NSString stringForStdString:nativeParameters.name];
switch (nativeParameters.kind) {
case cricket::MEDIA_TYPE_AUDIO:
_kind = kRTCMediaStreamTrackKindAudio;
break;
case cricket::MEDIA_TYPE_VIDEO:
_kind = kRTCMediaStreamTrackKindVideo;
break;
case cricket::MEDIA_TYPE_DATA:
RTC_DCHECK_NOTREACHED();
break;
case cricket::MEDIA_TYPE_UNSUPPORTED:
RTC_DCHECK_NOTREACHED();
break;
}
if (nativeParameters.clock_rate) {
_clockRate = [NSNumber numberWithInt:*nativeParameters.clock_rate];
}
if (nativeParameters.num_channels) {
_numChannels = [NSNumber numberWithInt:*nativeParameters.num_channels];
}
NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
for (const auto ¶meter : nativeParameters.parameters) {
[parameters setObject:[NSString stringForStdString:parameter.second]
forKey:[NSString stringForStdString:parameter.first]];
}
_parameters = parameters;
}
return self;
}
- (webrtc::RtpCodecParameters)nativeParameters {
webrtc::RtpCodecParameters parameters;
parameters.payload_type = _payloadType;
parameters.name = [NSString stdStringForString:_name];
// NSString pointer comparison is safe here since "kind" is readonly and only
// populated above.
if (_kind == kRTCMediaStreamTrackKindAudio) {
parameters.kind = cricket::MEDIA_TYPE_AUDIO;
} else if (_kind == kRTCMediaStreamTrackKindVideo) {
parameters.kind = cricket::MEDIA_TYPE_VIDEO;
} else {
RTC_DCHECK_NOTREACHED();
}
if (_clockRate != nil) {
parameters.clock_rate = std::optional<int>(_clockRate.intValue);
}
if (_numChannels != nil) {
parameters.num_channels = std::optional<int>(_numChannels.intValue);
}
for (NSString *paramKey in _parameters.allKeys) {
std::string key = [NSString stdStringForString:paramKey];
std::string value = [NSString stdStringForString:_parameters[paramKey]];
parameters.parameters[key] = value;
}
return parameters;
}
@end