chromecast/media/cma/backend/media_clock_device_default.h

   1 // Copyright 2015 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 CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_CLOCK_DEVICE_DEFAULT_H_
   6 #define CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_CLOCK_DEVICE_DEFAULT_H_
   7
   8 #include "base/macros.h"
   9 #include "base/threading/thread_checker.h"
  10 #include "base/time/time.h"
  11 #include "chromecast/public/media/media_clock_device.h"
  12
  13 namespace chromecast {
  14 namespace media {
  15
  16 class MediaClockDeviceDefault : public MediaClockDevice {
  17  public:
  18   MediaClockDeviceDefault();
  19   ~MediaClockDeviceDefault() override;
  20
  21   // MediaClockDevice implementation.
  22   State GetState() const override;
  23   bool SetState(State new_state) override;
  24   bool ResetTimeline(int64_t time_microseconds) override;
  25   bool SetRate(float rate) override;
  26   int64_t GetTimeMicroseconds() override;
  27
  28  private:
  29   State state_;
  30
  31   // Media time sampled at STC time |stc_|.
  32   base::TimeDelta media_time_;
  33   base::TimeTicks stc_;
  34
  35   float rate_;
  36
  37   base::ThreadChecker thread_checker_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(MediaClockDeviceDefault);
  40 };
  41
  42 }  // namespace media
  43 }  // namespace chromecast
  44
  45 #endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_CLOCK_DEVICE_DEFAULT_H_