be214a26f8
I updated some dependency enforcement rules to allow examples and pc to depend on common_video. I reckoned depending on common_video is not controversial when they already dependend on media/base, which is a lower-level abstraction. Bug: webrtc:6828 Change-Id: I77dbeb10187b4e70dda1d873a29994fa76070758 Reviewed-on: https://webrtc-review.googlesource.com/34187 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Commit-Queue: Patrik Höglund <phoglund@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21495}
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
|
|
* Copyright (c) 2016 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 MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
|
|
#define MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
|
|
|
|
#include <limits>
|
|
|
|
#include "api/optional.h"
|
|
#include "api/videosinkinterface.h"
|
|
|
|
namespace rtc {
|
|
|
|
// VideoSinkWants is used for notifying the source of properties a video frame
|
|
// should have when it is delivered to a certain sink.
|
|
struct VideoSinkWants {
|
|
VideoSinkWants();
|
|
~VideoSinkWants();
|
|
// Tells the source whether the sink wants frames with rotation applied.
|
|
// By default, any rotation must be applied by the sink.
|
|
bool rotation_applied = false;
|
|
|
|
// Tells the source that the sink only wants black frames.
|
|
bool black_frames = false;
|
|
|
|
// Tells the source the maximum number of pixels the sink wants.
|
|
int max_pixel_count = std::numeric_limits<int>::max();
|
|
// Tells the source the desired number of pixels the sinks wants. This will
|
|
// typically be used when stepping the resolution up again when conditions
|
|
// have improved after an earlier downgrade. The source should select the
|
|
// closest resolution to this pixel count, but if max_pixel_count is set, it
|
|
// still sets the absolute upper bound.
|
|
rtc::Optional<int> target_pixel_count;
|
|
// Tells the source the maximum framerate the sink wants.
|
|
int max_framerate_fps = std::numeric_limits<int>::max();
|
|
};
|
|
|
|
template <typename VideoFrameT>
|
|
class VideoSourceInterface {
|
|
public:
|
|
virtual void AddOrUpdateSink(VideoSinkInterface<VideoFrameT>* sink,
|
|
const VideoSinkWants& wants) = 0;
|
|
// RemoveSink must guarantee that at the time the method returns,
|
|
// there is no current and no future calls to VideoSinkInterface::OnFrame.
|
|
virtual void RemoveSink(VideoSinkInterface<VideoFrameT>* sink) = 0;
|
|
|
|
protected:
|
|
virtual ~VideoSourceInterface() {}
|
|
};
|
|
|
|
} // namespace rtc
|
|
#endif // MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
|