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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_PROTOCOL_VIDEO_STREAM_H_
#define REMOTING_PROTOCOL_VIDEO_STREAM_H_
#include "remoting/protocol/input_event_timestamps.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_capture_types.h"
namespace webrtc {
class DesktopSize;
class DesktopVector;
class MouseCursor;
} // namespace webrtc
namespace remoting::protocol {
class VideoStream {
public:
class Observer {
public:
// Called to notify about screen size changes. The size is specified in
// physical pixels.
virtual void OnVideoSizeChanged(VideoStream* stream,
const webrtc::DesktopSize& size,
const webrtc::DesktopVector& dpi) = 0;
};
VideoStream() = default;
virtual ~VideoStream() = default;
// Sets event timestamps source to be used for the video stream.
virtual void SetEventTimestampsSource(
scoped_refptr<InputEventTimestampsSource> event_timestamps_source) = 0;
// Pauses or resumes scheduling of frame captures. Pausing/resuming captures
// only affects capture scheduling and does not stop/start the capturer.
virtual void Pause(bool pause) = 0;
// Control mouse cursor compositing in the video stream.
virtual void SetComposeEnabled(bool enabled) = 0;
virtual void SetMouseCursor(
std::unique_ptr<webrtc::MouseCursor> mouse_cursor) = 0;
virtual void SetMouseCursorPosition(
const webrtc::DesktopVector& position) = 0;
// Sets stream observer.
virtual void SetObserver(Observer* observer) = 0;
// Selects the current desktop display (if multiple displays).
virtual void SelectSource(webrtc::ScreenId id) = 0;
// Sets the target/max video framerate for the host. The actual framerate is
// variable and determined by the number of changes on the screen and the rate
// at which the host is able to generate frames. Also WebRTC will adjust this
// value based on network conditions.
virtual void SetTargetFramerate(int framerate) = 0;
// Allows the owner of the stream to request a different |capture_interval|
// (usually a higher frequency) for the specified |boost_duration|. After
// |boost_duration| has elapsed, the capture rate will return to normal.
virtual void BoostFramerate(base::TimeDelta capture_interval,
base::TimeDelta boost_duration) {}
};
} // namespace remoting::protocol
#endif // REMOTING_PROTOCOL_VIDEO_STREAM_H_
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