webrtc_m130/webrtc/media/base/videosourceinterface.h
aleloi 440b6d9a0f Move video send/receive stream headers to webrtc/call.
Moved the headers video_receive_stream.h and video_send_stream.h from
webrtc/ into webrtc/call/ as part of the Slim and Modular work.

The GN target webrtc:video_stream_api has moved to
webrtc/call:video_stream_api.

There are headers left in webrtc/ with the same name including the
moved headers in webrtc/call/ for not breaking external projects
depending on WebRTC.

At the same time, some minor cleanup is done: Non-pure-virtual functions declared in the two affected headers now have definitions in the same target. After making this change, our 'chromium-style' plugin detected some style violations that have now been fixed: non-inlined constructors and destructors have been added to a number of classes, both inside the GN target of the two affected headers, and in other targets.

BUG=webrtc:8107

Review-Url: https://codereview.webrtc.org/3000253002
Cr-Commit-Position: refs/heads/master@{#19448}
2017-08-22 12:43:23 +00:00

58 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 WEBRTC_MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
#define WEBRTC_MEDIA_BASE_VIDEOSOURCEINTERFACE_H_
#include "webrtc/media/base/videosinkinterface.h"
#include "webrtc/rtc_base/optional.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 // WEBRTC_MEDIA_BASE_VIDEOSOURCEINTERFACE_H_