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Fix #2362: Allow WebRTC to play before publishing, for GB28181 as such. 4.0.117

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root 2021-05-18 15:57:22 +08:00 • committed by winlin
parent ef617b5fc6
commit d55af6be44
4 changed files with 68 additions and 41 deletions
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102
trunk/src/app/srs_app_rtc_source.cpp
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@ -367,7 +367,58 @@ srs_error_t SrsRtcSource::initialize(SrsRequest* r)
req = r->copy();
return err;
// Create default relations to allow play before publishing.
// @see https://github.com/ossrs/srs/issues/2362
init_for_play_before_publishing();
return err;
}
void SrsRtcSource::init_for_play_before_publishing()
{
// If the stream description has already been setup by RTC publisher,
// we should ignore and it's ok, because we only need to setup it for bridger.
if (stream_desc_) {
return;
}
SrsRtcSourceDescription* stream_desc = new SrsRtcSourceDescription();
SrsAutoFree(SrsRtcSourceDescription, stream_desc);
// audio track description
if (true) {
SrsRtcTrackDescription* audio_track_desc = new SrsRtcTrackDescription();
stream_desc->audio_track_desc_ = audio_track_desc;
audio_track_desc->type_ = "audio";
audio_track_desc->id_ = "audio-" + srs_random_str(8);
uint32_t audio_ssrc = SrsRtcSSRCGenerator::instance()->generate_ssrc();
audio_track_desc->ssrc_ = audio_ssrc;
audio_track_desc->direction_ = "recvonly";
audio_track_desc->media_ = new SrsAudioPayload(kAudioPayloadType, "opus", kAudioSamplerate, kAudioChannel);
}
// video track description
if (true) {
SrsRtcTrackDescription* video_track_desc = new SrsRtcTrackDescription();
stream_desc->video_track_descs_.push_back(video_track_desc);
video_track_desc->type_ = "video";
video_track_desc->id_ = "video-" + srs_random_str(8);
uint32_t video_ssrc = SrsRtcSSRCGenerator::instance()->generate_ssrc();
video_track_desc->ssrc_ = video_ssrc;
video_track_desc->direction_ = "recvonly";
SrsVideoPayload* video_payload = new SrsVideoPayload(kVideoPayloadType, "H264", kVideoSamplerate);
video_track_desc->media_ = video_payload;
video_payload->set_h264_param_desc("level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f");
}
set_stream_desc(stream_desc);
}
void SrsRtcSource::update_auth(SrsRequest* r)
@ -542,9 +593,6 @@ void SrsRtcSource::on_unpublish()
srs_freep(bridger_);
}
// release unpublish stream description.
set_stream_desc(NULL);
// TODO: FIXME: Handle by statistic.
}
@ -675,46 +723,20 @@ SrsRtcFromRtmpBridger::SrsRtcFromRtmpBridger(SrsRtcSource* source)
audio_sequence = 0;
video_sequence = 0;
SrsRtcSourceDescription* stream_desc = new SrsRtcSourceDescription();
SrsAutoFree(SrsRtcSourceDescription, stream_desc);
// audio track description
// audio track ssrc
if (true) {
SrsRtcTrackDescription* audio_track_desc = new SrsRtcTrackDescription();
stream_desc->audio_track_desc_ = audio_track_desc;
audio_track_desc->type_ = "audio";
audio_track_desc->id_ = "audio-" + srs_random_str(8);
audio_ssrc = SrsRtcSSRCGenerator::instance()->generate_ssrc();
audio_track_desc->ssrc_ = audio_ssrc;
audio_track_desc->direction_ = "recvonly";
audio_track_desc->media_ = new SrsAudioPayload(kAudioPayloadType, "opus", kAudioSamplerate, kAudioChannel);
std::vector<SrsRtcTrackDescription*> descs = source->get_track_desc("audio", "opus");
if (!descs.empty()) {
audio_ssrc = descs.at(0)->ssrc_;
}
}
// video track description
// video track ssrc
if (true) {
SrsRtcTrackDescription* video_track_desc = new SrsRtcTrackDescription();
stream_desc->video_track_descs_.push_back(video_track_desc);
video_track_desc->type_ = "video";
video_track_desc->id_ = "video-" + srs_random_str(8);
video_ssrc = SrsRtcSSRCGenerator::instance()->generate_ssrc();
video_track_desc->ssrc_ = video_ssrc;
video_track_desc->direction_ = "recvonly";
SrsVideoPayload* video_payload = new SrsVideoPayload(kVideoPayloadType, "H264", kVideoSamplerate);
video_track_desc->media_ = video_payload;
video_payload->set_h264_param_desc("level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f");
}
// If the stream description has already been setup by RTC publisher,
// we should ignore and it's ok, because we only need to setup it for bridger.
if (!source_->has_stream_desc()) {
source_->set_stream_desc(stream_desc);
std::vector<SrsRtcTrackDescription*> descs = source->get_track_desc("video", "H264");
if (!descs.empty()) {
video_ssrc = descs.at(0)->ssrc_;
}
}
}