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/*
* libjingle
* Copyright 2011 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "talk/app/webrtc/mediastream.h"
#include "webrtc/base/logging.h"
namespace webrtc {
template <class V>
static typename V::iterator FindTrack(V* vector,
const std::string& track_id) {
typename V::iterator it = vector->begin();
for (; it != vector->end(); ++it) {
if ((*it)->id() == track_id) {
break;
}
}
return it;
};
rtc::scoped_refptr<MediaStream> MediaStream::Create(
const std::string& label) {
rtc::RefCountedObject<MediaStream>* stream =
new rtc::RefCountedObject<MediaStream>(label);
return stream;
}
MediaStream::MediaStream(const std::string& label)
: label_(label) {
}
bool MediaStream::AddTrack(AudioTrackInterface* track) {
return AddTrack<AudioTrackVector, AudioTrackInterface>(&audio_tracks_, track);
}
bool MediaStream::AddTrack(VideoTrackInterface* track) {
return AddTrack<VideoTrackVector, VideoTrackInterface>(&video_tracks_, track);
}
bool MediaStream::RemoveTrack(AudioTrackInterface* track) {
return RemoveTrack<AudioTrackVector>(&audio_tracks_, track);
}
bool MediaStream::RemoveTrack(VideoTrackInterface* track) {
return RemoveTrack<VideoTrackVector>(&video_tracks_, track);
}
rtc::scoped_refptr<AudioTrackInterface>
MediaStream::FindAudioTrack(const std::string& track_id) {
AudioTrackVector::iterator it = FindTrack(&audio_tracks_, track_id);
if (it == audio_tracks_.end())
return NULL;
return *it;
}
rtc::scoped_refptr<VideoTrackInterface>
MediaStream::FindVideoTrack(const std::string& track_id) {
VideoTrackVector::iterator it = FindTrack(&video_tracks_, track_id);
if (it == video_tracks_.end())
return NULL;
return *it;
}
template <typename TrackVector, typename Track>
bool MediaStream::AddTrack(TrackVector* tracks, Track* track) {
typename TrackVector::iterator it = FindTrack(tracks, track->id());
if (it != tracks->end())
return false;
tracks->push_back(track);
FireOnChanged();
return true;
}
template <typename TrackVector>
bool MediaStream::RemoveTrack(TrackVector* tracks,
MediaStreamTrackInterface* track) {
ASSERT(tracks != NULL);
if (!track)
return false;
typename TrackVector::iterator it = FindTrack(tracks, track->id());
if (it == tracks->end())
return false;
tracks->erase(it);
FireOnChanged();
return true;
}
} // namespace webrtc
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