1 /* 2 * Copyright (c) 2016 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 MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_H_ 12 #define MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_H_ 13 14 #include <memory> 15 #include <vector> 16 17 #include "modules/audio_processing/aec3/echo_remover.h" 18 #include "modules/audio_processing/aec3/render_delay_buffer.h" 19 #include "modules/audio_processing/aec3/render_delay_controller.h" 20 21 namespace webrtc { 22 23 // Class for performing echo cancellation on 64 sample blocks of audio data. 24 class BlockProcessor { 25 public: 26 static BlockProcessor* Create(const EchoCanceller3Config& config, 27 int sample_rate_hz); 28 // Only used for testing purposes. 29 static BlockProcessor* Create( 30 const EchoCanceller3Config& config, 31 int sample_rate_hz, 32 std::unique_ptr<RenderDelayBuffer> render_buffer); 33 static BlockProcessor* Create( 34 const EchoCanceller3Config& config, 35 int sample_rate_hz, 36 std::unique_ptr<RenderDelayBuffer> render_buffer, 37 std::unique_ptr<RenderDelayController> delay_controller, 38 std::unique_ptr<EchoRemover> echo_remover); 39 40 virtual ~BlockProcessor() = default; 41 42 // Get current metrics. 43 virtual void GetMetrics(EchoControl::Metrics* metrics) const = 0; 44 45 // Processes a block of capture data. 46 virtual void ProcessCapture( 47 bool echo_path_gain_change, 48 bool capture_signal_saturation, 49 std::vector<std::vector<float>>* capture_block) = 0; 50 51 // Buffers a block of render data supplied by a FrameBlocker object. 52 virtual void BufferRender( 53 const std::vector<std::vector<float>>& render_block) = 0; 54 55 // Reports whether echo leakage has been detected in the echo canceller 56 // output. 57 virtual void UpdateEchoLeakageStatus(bool leakage_detected) = 0; 58 }; 59 60 } // namespace webrtc 61 62 #endif // MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_H_ 63