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1 /* | 1 /* |
2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2017 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 |
11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_H_ | 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_H_ |
12 #define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_H_ | 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_H_ |
13 | 13 |
| 14 #include "webrtc/api/array_view.h" |
14 #include "webrtc/modules/audio_processing/aec3/downsampled_render_buffer.h" | 15 #include "webrtc/modules/audio_processing/aec3/downsampled_render_buffer.h" |
15 #include "webrtc/modules/audio_processing/aec3/render_delay_buffer.h" | 16 #include "webrtc/modules/audio_processing/aec3/render_delay_buffer.h" |
16 #include "webrtc/modules/audio_processing/include/audio_processing.h" | 17 #include "webrtc/modules/audio_processing/include/audio_processing.h" |
17 #include "webrtc/modules/audio_processing/logging/apm_data_dumper.h" | 18 #include "webrtc/modules/audio_processing/logging/apm_data_dumper.h" |
18 #include "webrtc/rtc_base/array_view.h" | |
19 #include "webrtc/rtc_base/optional.h" | 19 #include "webrtc/rtc_base/optional.h" |
20 | 20 |
21 namespace webrtc { | 21 namespace webrtc { |
22 | 22 |
23 // Class for aligning the render and capture signal using a RenderDelayBuffer. | 23 // Class for aligning the render and capture signal using a RenderDelayBuffer. |
24 class RenderDelayController { | 24 class RenderDelayController { |
25 public: | 25 public: |
26 static RenderDelayController* Create( | 26 static RenderDelayController* Create( |
27 const AudioProcessing::Config::EchoCanceller3& config, | 27 const AudioProcessing::Config::EchoCanceller3& config, |
28 int sample_rate_hz); | 28 int sample_rate_hz); |
29 virtual ~RenderDelayController() = default; | 29 virtual ~RenderDelayController() = default; |
30 | 30 |
31 // Resets the delay controller. | 31 // Resets the delay controller. |
32 virtual void Reset() = 0; | 32 virtual void Reset() = 0; |
33 | 33 |
34 // Receives the externally used delay. | 34 // Receives the externally used delay. |
35 virtual void SetDelay(size_t render_delay) = 0; | 35 virtual void SetDelay(size_t render_delay) = 0; |
36 | 36 |
37 // Aligns the render buffer content with the capture signal. | 37 // Aligns the render buffer content with the capture signal. |
38 virtual size_t GetDelay(const DownsampledRenderBuffer& render_buffer, | 38 virtual size_t GetDelay(const DownsampledRenderBuffer& render_buffer, |
39 rtc::ArrayView<const float> capture) = 0; | 39 rtc::ArrayView<const float> capture) = 0; |
40 | 40 |
41 // Returns an approximate value for the headroom in the buffer alignment. | 41 // Returns an approximate value for the headroom in the buffer alignment. |
42 virtual rtc::Optional<size_t> AlignmentHeadroomSamples() const = 0; | 42 virtual rtc::Optional<size_t> AlignmentHeadroomSamples() const = 0; |
43 }; | 43 }; |
44 } // namespace webrtc | 44 } // namespace webrtc |
45 | 45 |
46 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_H_ | 46 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_CONTROLLER_H_ |
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