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/*
* Copyright 2024 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 "RTCRtpCodecCapability+Private.h"
#import "RTCMediaStreamTrack.h"
#import "helpers/NSString+StdString.h"
#include "media/base/media_constants.h"
#include "rtc_base/checks.h"
@implementation RTC_OBJC_TYPE (RTCRtpCodecCapability)
@synthesize preferredPayloadType = _preferredPayloadType;
@synthesize name = _name;
@synthesize kind = _kind;
@synthesize clockRate = _clockRate;
@synthesize numChannels = _numChannels;
@synthesize parameters = _parameters;
@synthesize mimeType = _mimeType;
- (instancetype)init {
webrtc::RtpCodecCapability rtpCodecCapability;
return [self initWithNativeRtpCodecCapability:rtpCodecCapability];
}
- (instancetype)initWithNativeRtpCodecCapability:
(const webrtc::RtpCodecCapability &)nativeRtpCodecCapability {
self = [super init];
if (self) {
if (nativeRtpCodecCapability.preferred_payload_type) {
_preferredPayloadType = [NSNumber
numberWithInt:*nativeRtpCodecCapability.preferred_payload_type];
}
_name = [NSString stringForStdString:nativeRtpCodecCapability.name];
switch (nativeRtpCodecCapability.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 (nativeRtpCodecCapability.clock_rate) {
_clockRate =
[NSNumber numberWithInt:*nativeRtpCodecCapability.clock_rate];
}
if (nativeRtpCodecCapability.num_channels) {
_numChannels =
[NSNumber numberWithInt:*nativeRtpCodecCapability.num_channels];
}
NSMutableDictionary *parameters = [NSMutableDictionary dictionary];
for (const auto ¶meter : nativeRtpCodecCapability.parameters) {
[parameters setObject:[NSString stringForStdString:parameter.second]
forKey:[NSString stringForStdString:parameter.first]];
}
_parameters = parameters;
_mimeType =
[NSString stringForStdString:nativeRtpCodecCapability.mime_type()];
}
return self;
}
- (NSString *)description {
return [NSString
stringWithFormat:@"RTC_OBJC_TYPE(RTCRtpCodecCapability) {\n "
@"preferredPayloadType: %@\n name: %@\n kind: %@\n "
@"clockRate: %@\n numChannels: %@\n parameters: %@\n "
@"mimeType: %@\n}",
_preferredPayloadType,
_name,
_kind,
_clockRate,
_numChannels,
_parameters,
_mimeType];
}
- (webrtc::RtpCodecCapability)nativeRtpCodecCapability {
webrtc::RtpCodecCapability rtpCodecCapability;
if (_preferredPayloadType != nil) {
rtpCodecCapability.preferred_payload_type =
std::optional<int>(_preferredPayloadType.intValue);
}
rtpCodecCapability.name = [NSString stdStringForString:_name];
// NSString pointer comparison is safe here since "kind" is readonly and only
// populated above.
if (_kind == kRTCMediaStreamTrackKindAudio) {
rtpCodecCapability.kind = cricket::MEDIA_TYPE_AUDIO;
} else if (_kind == kRTCMediaStreamTrackKindVideo) {
rtpCodecCapability.kind = cricket::MEDIA_TYPE_VIDEO;
} else {
RTC_DCHECK_NOTREACHED();
}
if (_clockRate != nil) {
rtpCodecCapability.clock_rate = std::optional<int>(_clockRate.intValue);
}
if (_numChannels != nil) {
rtpCodecCapability.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]];
rtpCodecCapability.parameters[key] = value;
}
return rtpCodecCapability;
}
@end
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