Chromecast: adds interfaces for hardware layer of CMA pipeline.

chromecast/media/cma/backend/media_component_device_feeder_for_test.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_COMPONENT_DEVICE_FEEDER_FOR_TEST_H_
+#define CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_COMPONENT_DEVICE_FEEDER_FOR_TEST_H_
+
+#include <list>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/time/time.h"
+#include "chromecast/media/cma/backend/audio_pipeline_device.h"
+#include "chromecast/media/cma/backend/media_clock_device.h"
+#include "chromecast/media/cma/backend/media_pipeline_device.h"
+#include "chromecast/media/cma/backend/video_pipeline_device.h"
+#include "chromecast/media/cma/base/decoder_buffer_base.h"
+
+namespace chromecast {
+namespace media {
+
+typedef std::list<scoped_refptr<DecoderBufferBase> > FrameList;
+
+class MediaComponentDeviceFeeder :
+    public base::RefCounted<MediaComponentDeviceFeeder> {
+ public:
+  MediaComponentDeviceFeeder(MediaComponentDevice *device,
+                             MediaClockDevice *clock,
+                             const FrameList& frames);
+
+  void Initialize();
+
+  // Feed one frame into the pipeline.
+  void Feed();
+  void Pause();
+
+  void SetEosCB(base::Callback<void()> eos_cb);
+  void SetFrameCountBetweenPause(int frame_count);
+  void SetDelayedFeedPattern(const std::vector<bool>& pattern);
+
+ protected:
+  friend class base::RefCounted<MediaComponentDeviceFeeder>;
+  virtual ~MediaComponentDeviceFeeder();
+
+ private:
+
+  void OnFramePushed(MediaComponentDevice::FrameStatus status);
+  void OnPauseCompleted();
+
+  void OnEos();
+
+  MediaClockDevice *media_clock_device_;
+  MediaComponentDevice *media_component_device_;
+  FrameList frames_;
+
+  // Frame index where the audio device is switching to the kStateRunning.
+  int rendering_frame_idx_;
+
+  // Frame index where the clock device is switching to the kStateRunning
+  int clock_frame_idx_;
+
+  // Timing pattern to feed the pipeline.
+  std::vector<bool> delayed_feed_pattern_;
+  size_t delayed_feed_pattern_idx_;
+
+  // Issue a pause at regular intervals.
+  int frame_count_between_pause_;
+  int frame_count_since_last_pause_;
+
+  // Set to enable eos callback
+  base::Callback<void()> eos_cb_;
+
+  // Current media time.
+  base::TimeDelta media_time_;
+
+  bool feeding_completed_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaComponentDeviceFeeder);
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_COMPONENT_DEVICE_FEEDER_FOR_TEST_H_