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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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403 // audio hardware and t_pull is the time the same frame is passed to | 403 // audio hardware and t_pull is the time the same frame is passed to |
404 // ProcessStream(). | 404 // ProcessStream(). |
405 virtual int set_stream_delay_ms(int delay) = 0; | 405 virtual int set_stream_delay_ms(int delay) = 0; |
406 virtual int stream_delay_ms() const = 0; | 406 virtual int stream_delay_ms() const = 0; |
407 virtual bool was_stream_delay_set() const = 0; | 407 virtual bool was_stream_delay_set() const = 0; |
408 | 408 |
409 // Call to signal that a key press occurred (true) or did not occur (false) | 409 // Call to signal that a key press occurred (true) or did not occur (false) |
410 // with this chunk of audio. | 410 // with this chunk of audio. |
411 virtual void set_stream_key_pressed(bool key_pressed) = 0; | 411 virtual void set_stream_key_pressed(bool key_pressed) = 0; |
412 | 412 |
| 413 // Sets the initial peak level to use inside the level controller in order |
| 414 // to compute the signal gain. The unit for the peak level is dBFS and |
| 415 // the allowed range is [-100, 0]. |
| 416 virtual void SetLevelControllerInitialLevel(float level) = 0; |
| 417 |
413 // Sets a delay |offset| in ms to add to the values passed in through | 418 // Sets a delay |offset| in ms to add to the values passed in through |
414 // set_stream_delay_ms(). May be positive or negative. | 419 // set_stream_delay_ms(). May be positive or negative. |
415 // | 420 // |
416 // Note that this could cause an otherwise valid value passed to | 421 // Note that this could cause an otherwise valid value passed to |
417 // set_stream_delay_ms() to return an error. | 422 // set_stream_delay_ms() to return an error. |
418 virtual void set_delay_offset_ms(int offset) = 0; | 423 virtual void set_delay_offset_ms(int offset) = 0; |
419 virtual int delay_offset_ms() const = 0; | 424 virtual int delay_offset_ms() const = 0; |
420 | 425 |
421 // Starts recording debugging information to a file specified by |filename|, | 426 // Starts recording debugging information to a file specified by |filename|, |
422 // a NULL-terminated string. If there is an ongoing recording, the old file | 427 // a NULL-terminated string. If there is an ongoing recording, the old file |
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974 // This does not impact the size of frames passed to |ProcessStream()|. | 979 // This does not impact the size of frames passed to |ProcessStream()|. |
975 virtual int set_frame_size_ms(int size) = 0; | 980 virtual int set_frame_size_ms(int size) = 0; |
976 virtual int frame_size_ms() const = 0; | 981 virtual int frame_size_ms() const = 0; |
977 | 982 |
978 protected: | 983 protected: |
979 virtual ~VoiceDetection() {} | 984 virtual ~VoiceDetection() {} |
980 }; | 985 }; |
981 } // namespace webrtc | 986 } // namespace webrtc |
982 | 987 |
983 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_PROCESSING_H_ | 988 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_INCLUDE_AUDIO_PROCESSING_H_ |
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