webrtc/talk/media/base/audiorenderer.h

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/*
* libjingle
* Copyright 2013 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_MEDIA_BASE_AUDIORENDERER_H_
#define TALK_MEDIA_BASE_AUDIORENDERER_H_
namespace cricket {
// Abstract interface for holding the voice channel IDs.
class AudioRenderer {
public:
// Add the WebRtc VoE channel to the renderer.
// For local stream, multiple WebRtc VoE channels can be connected to the
// renderer. While for remote stream, only one WebRtc VoE channel can be
// connected to the renderer.
virtual void AddChannel(int channel_id) = 0;
// Remove the WebRtc VoE channel from the renderer.
// This method is called when the VoE channel is going away.
virtual void RemoveChannel(int channel_id) = 0;
protected:
virtual ~AudioRenderer() {}
};
} // namespace cricket
#endif // TALK_MEDIA_BASE_AUDIORENDERER_H_