// 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_BROWSER_MEDIA_MEDIA_PIPELINE_HOST_H_
#define CHROMECAST_BROWSER_MEDIA_MEDIA_PIPELINE_HOST_H_

#include <map>

#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/thread_checker.h"
#include "base/time/time.h"
#include "chromecast/common/media/cma_ipc_common.h"
#include "chromecast/media/cma/pipeline/load_type.h"
#include "media/base/pipeline_status.h"

namespace base {
class SharedMemory;
class SingleThreadTaskRunner;
}

namespace media {
class AudioDecoderConfig;
class VideoDecoderConfig;
}

namespace chromecast {
namespace media {
struct AvPipelineClient;
struct MediaPipelineClient;
class MediaPipelineImpl;
struct VideoPipelineClient;

class MediaPipelineHost {
 public:
  MediaPipelineHost();
  ~MediaPipelineHost();

  void Initialize(LoadType load_type,
                  const MediaPipelineClient& client);

  void SetAvPipe(TrackId track_id,
                 scoped_ptr<base::SharedMemory> shared_mem,
                 const base::Closure& pipe_read_activity_cb,
                 const base::Closure& av_pipe_set_cb);
  void AudioInitialize(TrackId track_id,
                       const AvPipelineClient& client,
                       const ::media::AudioDecoderConfig& config,
                       const ::media::PipelineStatusCB& status_cb);
  void VideoInitialize(TrackId track_id,
                       const VideoPipelineClient& client,
                       const ::media::VideoDecoderConfig& config,
                       const ::media::PipelineStatusCB& status_cb);
  void StartPlayingFrom(base::TimeDelta time);
  void Flush(const ::media::PipelineStatusCB& status_cb);
  void Stop();

  void SetPlaybackRate(float playback_rate);
  void SetVolume(TrackId track_id, float playback_rate);
  void SetCdm(int render_process_id, int render_frame_id, int cdm_id);

  void NotifyPipeWrite(TrackId track_id);

 private:
  base::ThreadChecker thread_checker_;

  scoped_ptr<MediaPipelineImpl> media_pipeline_;

  // The shared memory for a track id must be valid until Stop is invoked on
  // that track id.
  struct MediaTrackHost;
  typedef std::map<TrackId, MediaTrackHost*> MediaTrackMap;
  MediaTrackMap media_track_map_;

  DISALLOW_COPY_AND_ASSIGN(MediaPipelineHost);
};

}  // namespace media
}  // namespace chromecast

#endif  // CHROMECAST_BROWSER_MEDIA_MEDIA_PIPELINE_HOST_H_

