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Diffstat (limited to 'talk/app/webrtc/mediastreamobserver.h')
-rw-r--r-- | talk/app/webrtc/mediastreamobserver.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/talk/app/webrtc/mediastreamobserver.h b/talk/app/webrtc/mediastreamobserver.h new file mode 100644 index 0000000000..1dd6c4c118 --- /dev/null +++ b/talk/app/webrtc/mediastreamobserver.h @@ -0,0 +1,65 @@ +/* + * libjingle + * Copyright 2015 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. + */ + +#ifndef TALK_APP_WEBRTC_MEDIASTREAMOBSERVER_H_ +#define TALK_APP_WEBRTC_MEDIASTREAMOBSERVER_H_ + +#include "talk/app/webrtc/mediastreaminterface.h" +#include "webrtc/base/scoped_ref_ptr.h" +#include "webrtc/base/sigslot.h" + +namespace webrtc { + +// Helper class which will listen for changes to a stream and emit the +// corresponding signals. +class MediaStreamObserver : public ObserverInterface { + public: + explicit MediaStreamObserver(MediaStreamInterface* stream); + ~MediaStreamObserver(); + + const MediaStreamInterface* stream() const { return stream_; } + + void OnChanged() override; + + sigslot::signal2<AudioTrackInterface*, MediaStreamInterface*> + SignalAudioTrackAdded; + sigslot::signal2<AudioTrackInterface*, MediaStreamInterface*> + SignalAudioTrackRemoved; + sigslot::signal2<VideoTrackInterface*, MediaStreamInterface*> + SignalVideoTrackAdded; + sigslot::signal2<VideoTrackInterface*, MediaStreamInterface*> + SignalVideoTrackRemoved; + + private: + rtc::scoped_refptr<MediaStreamInterface> stream_; + AudioTrackVector cached_audio_tracks_; + VideoTrackVector cached_video_tracks_; +}; + +} // namespace webrtc + +#endif // TALK_APP_WEBRTC_MEDIASTREAMOBSERVER_H_ |