1 /* 2 * Copyright (c) 2012 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_MODULES_AUDIO_PROCESSING_ECHO_CANCELLATION_IMPL_H_ 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_ECHO_CANCELLATION_IMPL_H_ 13 14 #include "webrtc/modules/audio_processing/include/audio_processing.h" 15 #include "webrtc/modules/audio_processing/processing_component.h" 16 17 namespace webrtc { 18 19 class AudioBuffer; 20 class CriticalSectionWrapper; 21 22 class EchoCancellationImpl : public EchoCancellation, 23 public ProcessingComponent { 24 public: 25 EchoCancellationImpl(const AudioProcessing* apm, 26 CriticalSectionWrapper* crit); 27 virtual ~EchoCancellationImpl(); 28 29 int ProcessRenderAudio(const AudioBuffer* audio); 30 int ProcessCaptureAudio(AudioBuffer* audio); 31 32 // EchoCancellation implementation. 33 bool is_enabled() const override; 34 int stream_drift_samples() const override; 35 SuppressionLevel suppression_level() const override; 36 bool is_drift_compensation_enabled() const override; 37 38 // ProcessingComponent implementation. 39 int Initialize() override; 40 void SetExtraOptions(const Config& config) override; 41 42 bool is_delay_agnostic_enabled() const; 43 bool is_extended_filter_enabled() const; 44 45 private: 46 // EchoCancellation implementation. 47 int Enable(bool enable) override; 48 int enable_drift_compensation(bool enable) override; 49 void set_stream_drift_samples(int drift) override; 50 int set_suppression_level(SuppressionLevel level) override; 51 int enable_metrics(bool enable) override; 52 bool are_metrics_enabled() const override; 53 bool stream_has_echo() const override; 54 int GetMetrics(Metrics* metrics) override; 55 int enable_delay_logging(bool enable) override; 56 bool is_delay_logging_enabled() const override; 57 int GetDelayMetrics(int* median, int* std) override; 58 int GetDelayMetrics(int* median, 59 int* std, 60 float* fraction_poor_delays) override; 61 struct AecCore* aec_core() const override; 62 63 // ProcessingComponent implementation. 64 void* CreateHandle() const override; 65 int InitializeHandle(void* handle) const override; 66 int ConfigureHandle(void* handle) const override; 67 void DestroyHandle(void* handle) const override; 68 int num_handles_required() const override; 69 int GetHandleError(void* handle) const override; 70 71 const AudioProcessing* apm_; 72 CriticalSectionWrapper* crit_; 73 bool drift_compensation_enabled_; 74 bool metrics_enabled_; 75 SuppressionLevel suppression_level_; 76 int stream_drift_samples_; 77 bool was_stream_drift_set_; 78 bool stream_has_echo_; 79 bool delay_logging_enabled_; 80 bool extended_filter_enabled_; 81 bool delay_agnostic_enabled_; 82 }; 83 84 } // namespace webrtc 85 86 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_ECHO_CANCELLATION_IMPL_H_ 87