video_track_source.h

Enable keyboard shortcuts

/*

 *  Copyright 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 PC_VIDEO_TRACK_SOURCE_H_

#define PC_VIDEO_TRACK_SOURCE_H_

#include "absl/types/optional.h"

#include "api/media_stream_interface.h"

#include "api/notifier.h"

#include "api/sequence_checker.h"

#include "api/video/recordable_encoded_frame.h"

#include "api/video/video_frame.h"

#include "api/video/video_sink_interface.h"

#include "api/video/video_source_interface.h"

#include "media/base/media_channel.h"

#include "rtc_base/checks.h"

#include "rtc_base/system/no_unique_address.h"

#include "rtc_base/system/rtc_export.h"

#include "rtc_base/thread_annotations.h"

namespace webrtc {

// VideoTrackSource is a convenience base class for implementations of

// VideoTrackSourceInterface.

class RTC_EXPORT VideoTrackSource : public Notifier<VideoTrackSourceInterface> {

 public:

  explicit VideoTrackSource(bool remote);

  void SetState(SourceState new_state);

  SourceState state() const override {

    RTC_DCHECK_RUN_ON(&signaling_thread_checker_);

    return state_;

  bool remote() const override { return remote_; }

  bool is_screencast() const override { return false; }

  absl::optional<bool> needs_denoising() const override {

    return absl::nullopt;

  bool GetStats(Stats* stats) override { return false; }

  void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,

                       const rtc::VideoSinkWants& wants) override;

  void RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) override;

  bool SupportsEncodedOutput() const override { return false; }

  void GenerateKeyFrame() override {}

  void AddEncodedSink(

      rtc::VideoSinkInterface<RecordableEncodedFrame>* sink) override {}

  void RemoveEncodedSink(

      rtc::VideoSinkInterface<RecordableEncodedFrame>* sink) override {}

 protected:

  virtual rtc::VideoSourceInterface<VideoFrame>* source() = 0;

 private:

  RTC_NO_UNIQUE_ADDRESS SequenceChecker worker_thread_checker_{

      SequenceChecker::kDetached};

  RTC_NO_UNIQUE_ADDRESS SequenceChecker signaling_thread_checker_;

  SourceState state_ RTC_GUARDED_BY(&signaling_thread_checker_);

  const bool remote_;

};

}  // namespace webrtc

#endif  //  PC_VIDEO_TRACK_SOURCE_H_