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0e61fdd27c
Bug: webrtc:12338 Change-Id: Ib97b2c3d64dbd895f261ffa76a2e885bd934a87f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/226940 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34554}
43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
/*
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* Copyright (c) 2020 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 API_AUDIO_AUDIO_FRAME_PROCESSOR_H_
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#define API_AUDIO_AUDIO_FRAME_PROCESSOR_H_
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#include <functional>
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#include <memory>
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namespace webrtc {
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class AudioFrame;
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// If passed into PeerConnectionFactory, will be used for additional
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// processing of captured audio frames, performed before encoding.
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// Implementations must be thread-safe.
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class AudioFrameProcessor {
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public:
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using OnAudioFrameCallback = std::function<void(std::unique_ptr<AudioFrame>)>;
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virtual ~AudioFrameProcessor() = default;
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// Processes the frame received from WebRTC, is called by WebRTC off the
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// realtime audio capturing path. AudioFrameProcessor must reply with
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// processed frames by calling `sink_callback` if it was provided in SetSink()
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// call. `sink_callback` can be called in the context of Process().
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virtual void Process(std::unique_ptr<AudioFrame> frame) = 0;
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// Atomically replaces the current sink with the new one. Before the
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// first call to this function, or if the provided `sink_callback` is nullptr,
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// processed frames are simply discarded.
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virtual void SetSink(OnAudioFrameCallback sink_callback) = 0;
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};
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} // namespace webrtc
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#endif // API_AUDIO_AUDIO_FRAME_PROCESSOR_H_
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