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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/media/media_stream_video_track.h"
#include "content/renderer/media/webrtc/webrtc_video_sink_adapter.h"
namespace content {
// Wrapper which allows to use std::find_if() when adding and removing
// sinks to/from |sinks_|.
struct SinkWrapper {
explicit SinkWrapper(MediaStreamVideoSink* sink) : sink_(sink) {}
bool operator()(
const WebRtcVideoSinkAdapter* owner) {
return owner->sink() == sink_;
}
MediaStreamVideoSink* sink_;
};
MediaStreamVideoTrack::MediaStreamVideoTrack(webrtc::VideoTrackInterface* track,
bool is_local_track)
: MediaStreamTrackExtraData(track, is_local_track),
video_track_(track) {
}
MediaStreamVideoTrack::~MediaStreamVideoTrack() {
DCHECK(sinks_.empty());
}
void MediaStreamVideoTrack::AddSink(MediaStreamVideoSink* sink) {
DCHECK(thread_checker_.CalledOnValidThread());
DCHECK(std::find_if(sinks_.begin(), sinks_.end(),
SinkWrapper(sink)) == sinks_.end());
sinks_.push_back(new WebRtcVideoSinkAdapter(video_track_, sink));
}
void MediaStreamVideoTrack::RemoveSink(MediaStreamVideoSink* sink) {
DCHECK(thread_checker_.CalledOnValidThread());
ScopedVector<WebRtcVideoSinkAdapter>::iterator it =
std::find_if(sinks_.begin(), sinks_.end(), SinkWrapper(sink));
DCHECK(it != sinks_.end());
sinks_.erase(it);
}
} // namespace content
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