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支持bitrate

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This commit is contained in:
xiongziliang
2020-12-05 12:22:17 +08:00
parent 42679cdf98
commit 55cf411c1e
23 changed files with 102 additions and 52 deletions
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24
src/Rtmp/RtmpDemuxer.cpp
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@@ -19,6 +19,8 @@ bool RtmpDemuxer::loadMetaData(const AMFValue &val){
int audiosamplerate = 0;
int audiochannels = 0;
int audiosamplesize = 0;
int videodatarate = 0;
int audiodatarate = 0;
const AMFValue *audiocodecid = nullptr;
const AMFValue *videocodecid = nullptr;
val.object_for_each([&](const string &key, const AMFValue &val) {
@@ -48,16 +50,24 @@ bool RtmpDemuxer::loadMetaData(const AMFValue &val){
audiocodecid = &val;
return;
}
if (key == "audiodatarate") {
audiodatarate = val.as_integer();
return;
}
if (key == "videodatarate") {
videodatarate = val.as_integer();
return;
}
});
if (videocodecid) {
//有视频
ret = true;
makeVideoTrack(*videocodecid);
makeVideoTrack(*videocodecid, videodatarate * 1024);
}
if (audiocodecid) {
//有音频
ret = true;
makeAudioTrack(*audiocodecid, audiosamplerate, audiochannels, audiosamplesize);
makeAudioTrack(*audiocodecid, audiosamplerate, audiochannels, audiosamplesize, audiodatarate * 1024);
}
} catch (std::exception &ex) {
WarnL << ex.what();
@@ -71,7 +81,7 @@ void RtmpDemuxer::inputRtmp(const RtmpPacket::Ptr &pkt) {
if (!_try_get_video_track) {
_try_get_video_track = true;
auto codec = AMFValue(pkt->getMediaType());
makeVideoTrack(codec);
makeVideoTrack(codec, 0);
}
if (_video_rtmp_decoder) {
_video_rtmp_decoder->inputRtmp(pkt);
@@ -83,7 +93,7 @@ void RtmpDemuxer::inputRtmp(const RtmpPacket::Ptr &pkt) {
if (!_try_get_audio_track) {
_try_get_audio_track = true;
auto codec = AMFValue(pkt->getMediaType());
makeAudioTrack(codec, pkt->getAudioSampleRate(), pkt->getAudioChannel(), pkt->getAudioSampleBit());
makeAudioTrack(codec, pkt->getAudioSampleRate(), pkt->getAudioChannel(), pkt->getAudioSampleBit(), 0);
}
if (_audio_rtmp_decoder) {
_audio_rtmp_decoder->inputRtmp(pkt);
@@ -94,10 +104,11 @@ void RtmpDemuxer::inputRtmp(const RtmpPacket::Ptr &pkt) {
}
}
void RtmpDemuxer::makeVideoTrack(const AMFValue &videoCodec) {
void RtmpDemuxer::makeVideoTrack(const AMFValue &videoCodec, int bit_rate) {
//生成Track对象
_videoTrack = dynamic_pointer_cast<VideoTrack>(Factory::getVideoTrackByAmf(videoCodec));
if (_videoTrack) {
_videoTrack->setBitRate(bit_rate);
//生成rtmpCodec对象以便解码rtmp
_video_rtmp_decoder = Factory::getRtmpCodecByTrack(_videoTrack, false);
if (_video_rtmp_decoder) {
@@ -112,10 +123,11 @@ void RtmpDemuxer::makeVideoTrack(const AMFValue &videoCodec) {
}
}
void RtmpDemuxer::makeAudioTrack(const AMFValue &audioCodec,int sample_rate, int channels, int sample_bit) {
void RtmpDemuxer::makeAudioTrack(const AMFValue &audioCodec,int sample_rate, int channels, int sample_bit, int bit_rate) {
//生成Track对象
_audioTrack = dynamic_pointer_cast<AudioTrack>(Factory::getAudioTrackByAmf(audioCodec, sample_rate, channels, sample_bit));
if (_audioTrack) {
_audioTrack->setBitRate(bit_rate);
//生成rtmpCodec对象以便解码rtmp
_audio_rtmp_decoder = Factory::getRtmpCodecByTrack(_audioTrack, false);
if (_audio_rtmp_decoder) {