3 * Copyright 2013 Google Inc.
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28 #ifndef TALK_MEDIA_BASE_AUDIORENDERER_H_
29 #define TALK_MEDIA_BASE_AUDIORENDERER_H_
33 // Abstract interface for rendering the audio data.
38 virtual void OnData(const void* audio_data,
41 int number_of_channels,
42 int number_of_frames) = 0;
47 // Sets a sink to the AudioRenderer. There can be only one sink connected
48 // to the renderer at a time.
49 virtual void SetSink(Sink* sink) {}
51 // Add the WebRtc VoE channel to the renderer.
52 // For local stream, multiple WebRtc VoE channels can be connected to the
53 // renderer. While for remote stream, only one WebRtc VoE channel can be
54 // connected to the renderer.
55 // TODO(xians): Remove this interface after Chrome switches to the
56 // AudioRenderer::Sink interface.
57 virtual void AddChannel(int channel_id) {}
59 // Remove the WebRtc VoE channel from the renderer.
60 // This method is called when the VoE channel is going away.
61 // TODO(xians): Remove this interface after Chrome switches to the
62 // AudioRenderer::Sink interface.
63 virtual void RemoveChannel(int channel_id) {}
66 virtual ~AudioRenderer() {}
69 } // namespace cricket
71 #endif // TALK_MEDIA_BASE_AUDIORENDERER_H_