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Adds new class DecodeSynchronizer that will coalesce the decoding of received streams on the metronome. This feature is experimental and is backed by a field trial WebRTC-FrameBuffer3. This experiment now has 3 arms to it, "WebRTC-FrameBuffer3/arm:FrameBuffer2/": Default, uses old frame buffer. "WebRTC-FrameBuffer3/arm:FrameBuffer3/": Uses new frame buffer. "WebRTC-FrameBuffer3/arm:SyncDecoding/": Uses new frame buffer with frame scheduled on the metronome. The SyncDecoding arm will not work until it is wired up in the follow-up CL. This change also makes the following modifications, * Adds FakeMetronome utilities for tests using a metronome. * Makes FrameDecodeScheduler an interface. The default implementation is TaskQueueFrameDecodeScheduler. * FrameDecodeScheduler now has a Stop() method, which must be called before destruction. TBR=philipel@webrtc.org Change-Id: I58a306bb883604b0be3eb2a04b3d07dbdf185c71 Bug: webrtc:13658 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/250665 Reviewed-by: Henrik Boström <hbos@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Stefan Holmer <holmer@google.com> Reviewed-by: Stefan Holmer <stefan@webrtc.org> Commit-Queue: Evan Shrubsole <eshr@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35988}
48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022 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 VIDEO_TASK_QUEUE_FRAME_DECODE_SCHEDULER_H_
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#define VIDEO_TASK_QUEUE_FRAME_DECODE_SCHEDULER_H_
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#include "video/frame_decode_scheduler.h"
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namespace webrtc {
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// An implementation of FrameDecodeScheduler that is based on TaskQueues. This
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// is the default implementation for general use.
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class TaskQueueFrameDecodeScheduler : public FrameDecodeScheduler {
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public:
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TaskQueueFrameDecodeScheduler(Clock* clock,
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TaskQueueBase* const bookkeeping_queue);
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~TaskQueueFrameDecodeScheduler() override;
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TaskQueueFrameDecodeScheduler(const TaskQueueFrameDecodeScheduler&) = delete;
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TaskQueueFrameDecodeScheduler& operator=(
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const TaskQueueFrameDecodeScheduler&) = delete;
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// FrameDecodeScheduler implementation.
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absl::optional<uint32_t> ScheduledRtpTimestamp() override;
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void ScheduleFrame(uint32_t rtp,
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FrameDecodeTiming::FrameSchedule schedule,
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FrameReleaseCallback cb) override;
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void CancelOutstanding() override;
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void Stop() override;
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private:
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Clock* const clock_;
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TaskQueueBase* const bookkeeping_queue_;
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absl::optional<uint32_t> scheduled_rtp_;
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ScopedTaskSafetyDetached task_safety_;
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bool stopped_ = false;
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};
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} // namespace webrtc
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#endif // VIDEO_TASK_QUEUE_FRAME_DECODE_SCHEDULER_H_
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