58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
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/*
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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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