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| 1 /* | 1 /* |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ | 9 */ |
| 10 | 10 |
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| 26 public: | 26 public: |
| 27 // The largest decoded frame size in samples (60ms with 32kHz sample rate). | 27 // The largest decoded frame size in samples (60ms with 32kHz sample rate). |
| 28 enum { MAX_AUDIO_BUFFER_IN_SAMPLES = 60 * 32 }; | 28 enum { MAX_AUDIO_BUFFER_IN_SAMPLES = 60 * 32 }; |
| 29 enum { MAX_AUDIO_BUFFER_IN_BYTES = MAX_AUDIO_BUFFER_IN_SAMPLES * 2 }; | 29 enum { MAX_AUDIO_BUFFER_IN_BYTES = MAX_AUDIO_BUFFER_IN_SAMPLES * 2 }; |
| 30 | 30 |
| 31 // Note: will return NULL for unsupported formats. | 31 // Note: will return NULL for unsupported formats. |
| 32 static std::unique_ptr<FilePlayer> CreateFilePlayer( | 32 static std::unique_ptr<FilePlayer> CreateFilePlayer( |
| 33 const uint32_t instanceID, | 33 const uint32_t instanceID, |
| 34 const FileFormats fileFormat); | 34 const FileFormats fileFormat); |
| 35 | 35 |
| 36 // Deprecated. Call CreateFilePlayer instead. | |
| 37 static std::unique_ptr<FilePlayer> NewFilePlayer( | |
| 38 const uint32_t instanceID, | |
| 39 const FileFormats fileFormat) { | |
| 40 return CreateFilePlayer(instanceID, fileFormat); | |
| 41 } | |
| 42 | |
| 43 virtual ~FilePlayer() = default; | 36 virtual ~FilePlayer() = default; |
| 44 | 37 |
| 45 // Read 10 ms of audio at |frequencyInHz| to |outBuffer|. |lengthInSamples| | 38 // Read 10 ms of audio at |frequencyInHz| to |outBuffer|. |lengthInSamples| |
| 46 // will be set to the number of samples read (not the number of samples per | 39 // will be set to the number of samples read (not the number of samples per |
| 47 // channel). | 40 // channel). |
| 48 virtual int Get10msAudioFromFile(int16_t* outBuffer, | 41 virtual int Get10msAudioFromFile(int16_t* outBuffer, |
| 49 size_t* lengthInSamples, | 42 size_t* lengthInSamples, |
| 50 int frequencyInHz) = 0; | 43 int frequencyInHz) = 0; |
| 51 | 44 |
| 52 // Register callback for receiving file playing notifications. | 45 // Register callback for receiving file playing notifications. |
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| 79 // Set audioCodec to the currently used audio codec. | 72 // Set audioCodec to the currently used audio codec. |
| 80 virtual int32_t AudioCodec(CodecInst* audioCodec) const = 0; | 73 virtual int32_t AudioCodec(CodecInst* audioCodec) const = 0; |
| 81 | 74 |
| 82 virtual int32_t Frequency() const = 0; | 75 virtual int32_t Frequency() const = 0; |
| 83 | 76 |
| 84 // Note: scaleFactor is in the range [0.0 - 2.0] | 77 // Note: scaleFactor is in the range [0.0 - 2.0] |
| 85 virtual int32_t SetAudioScaling(float scaleFactor) = 0; | 78 virtual int32_t SetAudioScaling(float scaleFactor) = 0; |
| 86 }; | 79 }; |
| 87 } // namespace webrtc | 80 } // namespace webrtc |
| 88 #endif // WEBRTC_MODULES_UTILITY_INCLUDE_FILE_PLAYER_H_ | 81 #endif // WEBRTC_MODULES_UTILITY_INCLUDE_FILE_PLAYER_H_ |
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