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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}
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
/*
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* Copyright 2021 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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// This file contains interfaces for MediaStream, MediaTrack and MediaSource.
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// These interfaces are used for implementing MediaStream and MediaTrack as
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// defined in http://dev.w3.org/2011/webrtc/editor/webrtc.html#stream-api. These
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// interfaces must be used only with PeerConnection.
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#ifndef API_VIDEO_TRACK_SOURCE_CONSTRAINTS_H_
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#define API_VIDEO_TRACK_SOURCE_CONSTRAINTS_H_
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#include "absl/types/optional.h"
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namespace webrtc {
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// This struct definition describes constraints on the video source that may be
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// set with VideoTrackSourceInterface::ProcessConstraints.
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struct VideoTrackSourceConstraints {
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absl::optional<double> min_fps;
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absl::optional<double> max_fps;
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};
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} // namespace webrtc
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#endif // API_VIDEO_TRACK_SOURCE_CONSTRAINTS_H_
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