| /* |
| * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_BUFFER_H_ |
| #define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_BUFFER_H_ |
| |
| #include <stddef.h> |
| #include <vector> |
| |
| namespace webrtc { |
| |
| // Class for buffering the incoming render blocks such that these may be |
| // extracted with a specified delay. |
| class RenderDelayBuffer { |
| public: |
| static RenderDelayBuffer* Create(size_t size_blocks, |
| size_t num_bands, |
| size_t max_api_jitter_blocks); |
| virtual ~RenderDelayBuffer() = default; |
| |
| // Swaps a block into the buffer (the content of block is destroyed) and |
| // returns true if the insert is successful. |
| virtual bool Insert(std::vector<std::vector<float>>* block) = 0; |
| |
| // Gets a reference to the next block (having the specified buffer delay) to |
| // read in the buffer. This method can only be called if a block is |
| // available which means that that must be checked prior to the call using |
| // the method IsBlockAvailable(). |
| virtual const std::vector<std::vector<float>>& GetNext() = 0; |
| |
| // Sets the buffer delay. The delay set must be lower than the delay reported |
| // by MaxDelay(). |
| virtual void SetDelay(size_t delay) = 0; |
| |
| // Gets the buffer delay. |
| virtual size_t Delay() const = 0; |
| |
| // Returns the maximum allowed buffer delay increase. |
| virtual size_t MaxDelay() const = 0; |
| |
| // Returns whether a block is available for reading. |
| virtual bool IsBlockAvailable() const = 0; |
| |
| // Returns the maximum allowed api call jitter in blocks. |
| virtual size_t MaxApiJitter() const = 0; |
| }; |
| |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_RENDER_DELAY_BUFFER_H_ |