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| 1 /* |
| 2 * Copyright 2013 The WebRTC Project Authors. All rights reserved. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license |
| 5 * that can be found in the LICENSE file in the root of the source |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #ifndef WEBRTC_MEDIA_BASE_AUDIORENDERER_H_ |
| 12 #define WEBRTC_MEDIA_BASE_AUDIORENDERER_H_ |
| 13 |
| 14 #include <cstddef> |
| 15 |
| 16 namespace cricket { |
| 17 |
| 18 // Abstract interface for rendering the audio data. |
| 19 class AudioRenderer { |
| 20 public: |
| 21 class Sink { |
| 22 public: |
| 23 // Callback to receive data from the AudioRenderer. |
| 24 virtual void OnData(const void* audio_data, |
| 25 int bits_per_sample, |
| 26 int sample_rate, |
| 27 size_t number_of_channels, |
| 28 size_t number_of_frames) = 0; |
| 29 |
| 30 // Called when the AudioRenderer is going away. |
| 31 virtual void OnClose() = 0; |
| 32 |
| 33 protected: |
| 34 virtual ~Sink() {} |
| 35 }; |
| 36 |
| 37 // Sets a sink to the AudioRenderer. There can be only one sink connected |
| 38 // to the renderer at a time. |
| 39 virtual void SetSink(Sink* sink) {} |
| 40 |
| 41 protected: |
| 42 virtual ~AudioRenderer() {} |
| 43 }; |
| 44 |
| 45 } // namespace cricket |
| 46 |
| 47 #endif // WEBRTC_MEDIA_BASE_AUDIORENDERER_H_ |
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