69221db534
This CL adds code to the BlockProcessor, which basically constitutes the second layer in echo canceller 3. The CL includes two incomplete classes (EchoRemover and EchoPathDelayEstimator) which will be completed in upcoming CLs. Because of this, some of the unittests are disabled until those are added. BUG=webrtc:6018 Review-Url: https://codereview.webrtc.org/2611223003 Cr-Commit-Position: refs/heads/master@{#16319}
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
/*
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* Copyright (c) 2017 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 WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_BUFFER_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_BUFFER_H_
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#include <stddef.h>
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#include <vector>
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namespace webrtc {
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// Class for buffering the incoming render blocks such that these may be
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// extracted with a specified delay.
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class RenderDelayBuffer {
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public:
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static RenderDelayBuffer* Create(size_t size_blocks,
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size_t num_bands,
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size_t max_api_jitter_blocks);
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virtual ~RenderDelayBuffer() = default;
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// Swaps a block into the buffer (the content of block is destroyed) and
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// returns true if the insert is successful.
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virtual bool Insert(std::vector<std::vector<float>>* block) = 0;
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// Gets a reference to the next block (having the specified buffer delay) to
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// read in the buffer. This method can only be called if a block is
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// available which means that that must be checked prior to the call using
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// the method IsBlockAvailable().
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virtual const std::vector<std::vector<float>>& GetNext() = 0;
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// Sets the buffer delay. The delay set must be lower than the delay reported
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// by MaxDelay().
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virtual void SetDelay(size_t delay) = 0;
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// Gets the buffer delay.
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virtual size_t Delay() const = 0;
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// Returns the maximum allowed buffer delay increase.
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virtual size_t MaxDelay() const = 0;
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// Returns whether a block is available for reading.
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virtual bool IsBlockAvailable() const = 0;
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// Returns the maximum allowed api call jitter in blocks.
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virtual size_t MaxApiJitter() const = 0;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_BUFFER_H_
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