db0cd9e774
This is similar to how a "receive" method is used to apply RtpParameters to an RtpReceiver in ORTC. Currently, SetParameters doesn't allow changing the parameters, so the main use of the API is to retrieve the set of configured codecs. But other uses will likely be made possible in the future. R=glaznev@webrtc.org, pthatcher@webrtc.org, tkchin@webrtc.org Review URL: https://codereview.webrtc.org/1917193008 . Cr-Commit-Position: refs/heads/master@{#12761}
136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
/*
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* Copyright 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/api/rtpreceiver.h"
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#include "webrtc/api/mediastreamtrackproxy.h"
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#include "webrtc/api/audiotrack.h"
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#include "webrtc/api/videosourceproxy.h"
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#include "webrtc/api/videotrack.h"
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#include "webrtc/base/trace_event.h"
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namespace webrtc {
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AudioRtpReceiver::AudioRtpReceiver(MediaStreamInterface* stream,
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const std::string& track_id,
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uint32_t ssrc,
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AudioProviderInterface* provider)
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: id_(track_id),
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ssrc_(ssrc),
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provider_(provider),
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track_(AudioTrackProxy::Create(
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rtc::Thread::Current(),
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AudioTrack::Create(track_id,
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RemoteAudioSource::Create(ssrc, provider)))),
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cached_track_enabled_(track_->enabled()) {
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RTC_DCHECK(track_->GetSource()->remote());
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track_->RegisterObserver(this);
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track_->GetSource()->RegisterAudioObserver(this);
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Reconfigure();
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stream->AddTrack(track_);
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}
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AudioRtpReceiver::~AudioRtpReceiver() {
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track_->GetSource()->UnregisterAudioObserver(this);
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track_->UnregisterObserver(this);
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Stop();
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}
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void AudioRtpReceiver::OnChanged() {
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if (cached_track_enabled_ != track_->enabled()) {
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cached_track_enabled_ = track_->enabled();
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Reconfigure();
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}
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}
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void AudioRtpReceiver::OnSetVolume(double volume) {
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// When the track is disabled, the volume of the source, which is the
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// corresponding WebRtc Voice Engine channel will be 0. So we do not allow
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// setting the volume to the source when the track is disabled.
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if (provider_ && track_->enabled())
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provider_->SetAudioPlayoutVolume(ssrc_, volume);
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}
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void AudioRtpReceiver::Stop() {
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// TODO(deadbeef): Need to do more here to fully stop receiving packets.
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if (!provider_) {
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return;
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}
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provider_->SetAudioPlayout(ssrc_, false);
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provider_ = nullptr;
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}
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RtpParameters AudioRtpReceiver::GetParameters() const {
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return provider_->GetAudioRtpReceiveParameters(ssrc_);
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}
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bool AudioRtpReceiver::SetParameters(const RtpParameters& parameters) {
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TRACE_EVENT0("webrtc", "AudioRtpReceiver::SetParameters");
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return provider_->SetAudioRtpReceiveParameters(ssrc_, parameters);
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}
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void AudioRtpReceiver::Reconfigure() {
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if (!provider_) {
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return;
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}
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provider_->SetAudioPlayout(ssrc_, track_->enabled());
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}
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VideoRtpReceiver::VideoRtpReceiver(MediaStreamInterface* stream,
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const std::string& track_id,
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rtc::Thread* worker_thread,
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uint32_t ssrc,
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VideoProviderInterface* provider)
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: id_(track_id),
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ssrc_(ssrc),
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provider_(provider),
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source_(new RefCountedObject<VideoTrackSource>(&broadcaster_,
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true /* remote */)),
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track_(VideoTrackProxy::Create(
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rtc::Thread::Current(),
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worker_thread,
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VideoTrack::Create(
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track_id,
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VideoTrackSourceProxy::Create(rtc::Thread::Current(),
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worker_thread,
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source_)))) {
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source_->SetState(MediaSourceInterface::kLive);
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provider_->SetVideoPlayout(ssrc_, true, &broadcaster_);
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stream->AddTrack(track_);
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}
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VideoRtpReceiver::~VideoRtpReceiver() {
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// Since cricket::VideoRenderer is not reference counted,
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// we need to remove it from the provider before we are deleted.
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Stop();
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}
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void VideoRtpReceiver::Stop() {
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// TODO(deadbeef): Need to do more here to fully stop receiving packets.
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if (!provider_) {
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return;
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}
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source_->SetState(MediaSourceInterface::kEnded);
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source_->OnSourceDestroyed();
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provider_->SetVideoPlayout(ssrc_, false, nullptr);
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provider_ = nullptr;
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}
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RtpParameters VideoRtpReceiver::GetParameters() const {
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return provider_->GetVideoRtpReceiveParameters(ssrc_);
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}
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bool VideoRtpReceiver::SetParameters(const RtpParameters& parameters) {
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TRACE_EVENT0("webrtc", "VideoRtpReceiver::SetParameters");
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return provider_->SetVideoRtpReceiveParameters(ssrc_, parameters);
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}
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} // namespace webrtc
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