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ZLMediaKit
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更新ssrc生成规则

This commit is contained in:
xiongziliang 2019-07-19 09:42:48 +08:00
parent 8bbd9d57c0
commit e095a604ab
1 changed files with 14 additions and 3 deletions
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17
src/Extension/Factory.cpp
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@ -118,9 +118,20 @@ Track::Ptr Factory::getTrackByCodecId(CodecId codecId) {
RtpCodec::Ptr Factory::getRtpEncoderBySdp(const Sdp::Ptr &sdp) {
GET_CONFIG(uint32_t,audio_mtu,Rtp::kAudioMtuSize);
GET_CONFIG(uint32_t,video_mtu,Rtp::kVideoMtuSize);
// ssrc不冲突即可
static atomic_int32_t s_ssrc(0x10000000);
uint32_t ssrc = ++s_ssrc;
// ssrc不冲突即可,可以为任意的32位整形
static atomic<uint32_t> s_ssrc(0);
uint32_t ssrc = s_ssrc++;
if(!ssrc){
//ssrc不能为0
ssrc = 1;
}
if(sdp->getTrackType() == TrackVideo){
//视频的ssrc是偶数，方便调试
ssrc = 2 * ssrc;
}else{
//音频ssrc是奇数
ssrc = 2 * ssrc + 1;
}
auto mtu = (sdp->getTrackType() == TrackVideo ? video_mtu : audio_mtu);
auto sample_rate = sdp->getSampleRate();
auto pt = sdp->getPlayloadType();