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This change - adds new type VideoTrackSourceConstraints expressing min/max FPS constraints. - adds new method VideoTrackSourceInterface::ProcessConstraints. - adds new method VideoSinkInterface<>::OnConstraintsChanged. - updates AdaptedVideoTrackSource and VideoBroadcaster to forward the constraints to sinks. - adds several unit tests for the added functionality. - and finally, implements OnConstraintsChanged in VideoStreamEncoder. Chromium will be updated in coming CLs to supply constraints set through the MediaStream module. go/rtc-0hz-present Bug: chromium:1255737 No-Try: true Change-Id: Iffef239217269c332a1aaa902ddeae2440929e22 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/235040 Commit-Queue: Markus Handell <handellm@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35197}
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
/*
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* Copyright (c) 2016 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_VIDEO_VIDEO_SINK_INTERFACE_H_
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#define API_VIDEO_VIDEO_SINK_INTERFACE_H_
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#include "absl/types/optional.h"
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#include "api/video_track_source_constraints.h"
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#include "rtc_base/checks.h"
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namespace rtc {
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template <typename VideoFrameT>
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class VideoSinkInterface {
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public:
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virtual ~VideoSinkInterface() = default;
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virtual void OnFrame(const VideoFrameT& frame) = 0;
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// Should be called by the source when it discards the frame due to rate
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// limiting.
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virtual void OnDiscardedFrame() {}
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// Called on the network thread when video constraints change.
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// TODO(crbug/1255737): make pure virtual once downstream project adapts.
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virtual void OnConstraintsChanged(
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const webrtc::VideoTrackSourceConstraints& constraints) {}
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};
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} // namespace rtc
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#endif // API_VIDEO_VIDEO_SINK_INTERFACE_H_
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