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Code Issues Releases Wiki Activity

RTC: Improve NACK efficiency

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This commit is contained in:
winlin 2020-09-09 13:39:10 +08:00
parent 3026f2fda8
commit cff976bb71
4 changed files with 42 additions and 0 deletions
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28
trunk/src/app/srs_app_rtc_conn.cpp
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@ -1125,6 +1125,13 @@ srs_error_t SrsRtcPublishStream::do_on_rtp(char* plaintext, int nb_plaintext)
return srs_error_new(ERROR_RTC_RTP, "unknown ssrc=%u", ssrc);
}
// Check then send NACK every each RTP packet, to make it more efficient.
// For example, NACK of video track maybe triggered by audio RTP packets.
if ((err = check_send_nacks()) != srs_success) {
srs_warn("ignore nack err %s", srs_error_desc(err).c_str());
srs_freep(err);
}
if (_srs_rtc_hijacker) {
// TODO: FIXME: copy pkt by hijacker itself
if ((err = _srs_rtc_hijacker->on_rtp_packet(session_, this, req, pkt->copy())) != srs_success) {
@ -1135,6 +1142,27 @@ srs_error_t SrsRtcPublishStream::do_on_rtp(char* plaintext, int nb_plaintext)
return err;
}
srs_error_t SrsRtcPublishStream::check_send_nacks()
{
srs_error_t err = srs_success;
for (int i = 0; i < (int)video_tracks_.size(); ++i) {
SrsRtcVideoRecvTrack* track = video_tracks_.at(i);
if ((err = track->check_send_nacks()) != srs_success) {
return srs_error_wrap(err, "video track=%s", track->get_track_id().c_str());
}
}
for (int i = 0; i < (int)audio_tracks_.size(); ++i) {
SrsRtcAudioRecvTrack* track = audio_tracks_.at(i);
if ((err = track->check_send_nacks()) != srs_success) {
return srs_error_wrap(err, "audio track=%s", track->get_track_id().c_str());
}
}
return err;
}
void SrsRtcPublishStream::on_before_decode_payload(SrsRtpPacket2* pkt, SrsBuffer* buf, ISrsRtpPayloader** ppayload)
{
// No payload, ignore.