82 lines
3.0 KiB
C
82 lines
3.0 KiB
C
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/*
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* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_H_
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#include <stddef.h>
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#include <memory>
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#include <vector>
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#include "api/audio/echo_canceller3_config.h"
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#include "api/audio/echo_control.h"
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#include "modules/audio_processing/aec3/block.h"
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#include "modules/audio_processing/aec3/echo_remover.h"
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#include "modules/audio_processing/aec3/render_delay_buffer.h"
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#include "modules/audio_processing/aec3/render_delay_controller.h"
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namespace webrtc {
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// Class for performing echo cancellation on 64 sample blocks of audio data.
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class BlockProcessor {
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public:
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static BlockProcessor* Create(const EchoCanceller3Config& config,
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int sample_rate_hz,
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size_t num_render_channels,
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size_t num_capture_channels);
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// Only used for testing purposes.
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static BlockProcessor* Create(
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const EchoCanceller3Config& config,
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int sample_rate_hz,
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size_t num_render_channels,
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size_t num_capture_channels,
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std::unique_ptr<RenderDelayBuffer> render_buffer);
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static BlockProcessor* Create(
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const EchoCanceller3Config& config,
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int sample_rate_hz,
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size_t num_render_channels,
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size_t num_capture_channels,
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std::unique_ptr<RenderDelayBuffer> render_buffer,
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std::unique_ptr<RenderDelayController> delay_controller,
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std::unique_ptr<EchoRemover> echo_remover);
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virtual ~BlockProcessor() = default;
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// Get current metrics.
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virtual void GetMetrics(EchoControl::Metrics* metrics) const = 0;
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// Provides an optional external estimate of the audio buffer delay.
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virtual void SetAudioBufferDelay(int delay_ms) = 0;
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// Processes a block of capture data.
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virtual void ProcessCapture(bool echo_path_gain_change,
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bool capture_signal_saturation,
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Block* linear_output,
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Block* capture_block) = 0;
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// Buffers a block of render data supplied by a FrameBlocker object.
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virtual void BufferRender(const Block& render_block) = 0;
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// Reports whether echo leakage has been detected in the echo canceller
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// output.
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virtual void UpdateEchoLeakageStatus(bool leakage_detected) = 0;
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// Specifies whether the capture output will be used. The purpose of this is
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// to allow the block processor to deactivate some of the processing when the
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// resulting output is anyway not used, for instance when the endpoint is
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// muted.
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virtual void SetCaptureOutputUsage(bool capture_output_used) = 0;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_BLOCK_PROCESSOR_H_
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