src/media/filters/clockless_video_frame_scheduler.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_FILTERS_CLOCKLESS_VIDEO_FRAME_SCHEDULER_H_
   6 #define MEDIA_FILTERS_CLOCKLESS_VIDEO_FRAME_SCHEDULER_H_
   7
   8 #include "media/filters/video_frame_scheduler.h"
   9
  10 namespace media {
  11
  12 // A scheduler that immediately displays frames.
  13 class ClocklessVideoFrameScheduler : public VideoFrameScheduler {
  14  public:
  15   typedef base::Callback<void(const scoped_refptr<VideoFrame>&)> DisplayCB;
  16
  17   explicit ClocklessVideoFrameScheduler(const DisplayCB& display_cb);
  18   ~ClocklessVideoFrameScheduler() override;
  19
  20   // VideoFrameScheduler implementation.
  21   void ScheduleVideoFrame(const scoped_refptr<VideoFrame>& frame,
  22                           base::TimeTicks wall_ticks,
  23                           const DoneCB& done_cb) override;
  24   void Reset() override;
  25
  26  private:
  27   DisplayCB display_cb_;
  28
  29   DISALLOW_COPY_AND_ASSIGN(ClocklessVideoFrameScheduler);
  30 };
  31
  32 }  // namespace media
  33
  34 #endif  // MEDIA_FILTERS_CLOCKLESS_VIDEO_FRAME_SCHEDULER_H_