nsresult
MediaPipelineFactory::CreateOrUpdateMediaPipeline(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack)
{
#if !defined(MOZILLA_EXTERNAL_LINKAGE)
// The GMP code is all the way on the other side of webrtc.org, and it is not
// feasible to plumb this information all the way through. So, we set it (for
// the duration of this call) in a global variable. This allows the GMP code
// to report errors to the PC.
WebrtcGmpPCHandleSetter setter(mPC->GetHandle());
#endif
MOZ_ASSERT(aTrackPair.mRtpTransport);
bool receiving = aTrack.GetDirection() == sdp::kRecv;
size_t level;
RefPtr<TransportFlow> rtpFlow;
RefPtr<TransportFlow> rtcpFlow;
nsAutoPtr<MediaPipelineFilter> filter;
nsresult rv = GetTransportParameters(aTrackPair,
aTrack,
&level,
&rtpFlow,
&rtcpFlow,
&filter);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Failed to get transport parameters for pipeline, rv="
<< static_cast<unsigned>(rv));
return rv;
}
if (aTrack.GetMediaType() == SdpMediaSection::kApplication) {
// GetTransportParameters has already done everything we need for
// datachannel.
return NS_OK;
}
// Find the stream we need
SourceStreamInfo* stream;
if (receiving) {
stream = mPCMedia->GetRemoteStreamById(aTrack.GetStreamId());
} else {
stream = mPCMedia->GetLocalStreamById(aTrack.GetStreamId());
}
if (!stream) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " stream id " << aTrack.GetStreamId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
if (!stream->HasTrack(aTrack.GetTrackId())) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " track id " << aTrack.GetTrackId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
RefPtr<MediaSessionConduit> conduit;
if (aTrack.GetMediaType() == SdpMediaSection::kAudio) {
rv = GetOrCreateAudioConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else if (aTrack.GetMediaType() == SdpMediaSection::kVideo) {
rv = GetOrCreateVideoConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else {
// We've created the TransportFlow, nothing else to do here.
return NS_OK;
}
RefPtr<MediaPipeline> pipeline =
stream->GetPipelineByTrackId_m(aTrack.GetTrackId());
if (pipeline && pipeline->level() != static_cast<int>(level)) {
MOZ_MTLOG(ML_WARNING, "Track " << aTrack.GetTrackId() <<
" has moved from level " << pipeline->level() <<
" to level " << level <<
". This requires re-creating the MediaPipeline.");
// Since we do not support changing the conduit on a pre-existing
// MediaPipeline
pipeline = nullptr;
stream->RemoveTrack(aTrack.GetTrackId());
stream->AddTrack(aTrack.GetTrackId());
}
if (pipeline) {
pipeline->UpdateTransport_m(level, rtpFlow, rtcpFlow, filter);
return NS_OK;
}
MOZ_MTLOG(ML_DEBUG,
"Creating media pipeline"
<< " m-line index=" << aTrackPair.mLevel
<< " type=" << aTrack.GetMediaType()
<< " direction=" << aTrack.GetDirection());
if (receiving) {
rv = CreateMediaPipelineReceiving(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
} else {
rv = CreateMediaPipelineSending(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
}
return NS_OK;
}
nsresult
MediaPipelineFactory::CreateOrUpdateMediaPipeline(
const JsepTrackPair& aTrackPair,
const JsepTrack& aTrack)
{
MOZ_ASSERT(aTrackPair.mRtpTransport);
bool receiving =
aTrack.GetDirection() == JsepTrack::Direction::kJsepTrackReceiving;
size_t level;
RefPtr<TransportFlow> rtpFlow;
RefPtr<TransportFlow> rtcpFlow;
nsAutoPtr<MediaPipelineFilter> filter;
nsresult rv = GetTransportParameters(aTrackPair,
aTrack,
&level,
&rtpFlow,
&rtcpFlow,
&filter);
if (NS_FAILED(rv)) {
MOZ_MTLOG(ML_ERROR, "Failed to get transport parameters for pipeline, rv="
<< static_cast<unsigned>(rv));
return rv;
}
if (aTrack.GetMediaType() == SdpMediaSection::kApplication) {
// GetTransportParameters has already done everything we need for
// datachannel.
return NS_OK;
}
// Find the stream we need
SourceStreamInfo* stream;
if (receiving) {
stream = mPCMedia->GetRemoteStreamById(aTrack.GetStreamId());
} else {
stream = mPCMedia->GetLocalStreamById(aTrack.GetStreamId());
}
if (!stream) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " stream id " << aTrack.GetStreamId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
if (!stream->HasTrack(aTrack.GetTrackId())) {
MOZ_MTLOG(ML_ERROR, "Negotiated " << (receiving ? "recv" : "send")
<< " track id " << aTrack.GetTrackId() << " was never added");
MOZ_ASSERT(false);
return NS_ERROR_FAILURE;
}
RefPtr<MediaSessionConduit> conduit;
if (aTrack.GetMediaType() == SdpMediaSection::kAudio) {
rv = GetOrCreateAudioConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else if (aTrack.GetMediaType() == SdpMediaSection::kVideo) {
rv = GetOrCreateVideoConduit(aTrackPair, aTrack, &conduit);
if (NS_FAILED(rv))
return rv;
} else {
// We've created the TransportFlow, nothing else to do here.
return NS_OK;
}
RefPtr<MediaPipeline> pipeline =
stream->GetPipelineByTrackId_m(aTrack.GetTrackId());
if (pipeline && pipeline->level() != static_cast<int>(level)) {
MOZ_MTLOG(ML_WARNING, "Track " << aTrack.GetTrackId() <<
" has moved from level " << pipeline->level() <<
" to level " << level <<
". This requires re-creating the MediaPipeline.");
// Since we do not support changing the conduit on a pre-existing
// MediaPipeline
pipeline = nullptr;
stream->RemoveTrack(aTrack.GetTrackId());
stream->AddTrack(aTrack.GetTrackId());
}
if (pipeline) {
pipeline->UpdateTransport_m(level, rtpFlow, rtcpFlow, filter);
return NS_OK;
}
MOZ_MTLOG(ML_DEBUG,
"Creating media pipeline"
<< " m-line index=" << aTrackPair.mLevel
<< " type=" << aTrack.GetMediaType()
<< " direction=" << aTrack.GetDirection());
if (receiving) {
rv = CreateMediaPipelineReceiving(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
} else {
rv = CreateMediaPipelineSending(aTrackPair, aTrack,
level, rtpFlow, rtcpFlow, filter,
conduit);
if (NS_FAILED(rv))
return rv;
}
return NS_OK;
}