text: // Copyright (c) 2012 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 MEDIA_BASE_ANDROID_MEDIA_PLAYER_MANAGER_H_
  #define MEDIA_BASE_ANDROID_MEDIA_PLAYER_MANAGER_H_
  
  #include "base/time/time.h"
  #include "media/base/android/demuxer_stream_player_params.h"
  #include "media/base/media_export.h"
  
  namespace media {
  
  class MediaPlayerAndroid;
  class MediaResourceGetter;
  class MediaUrlInterceptor;
  
  // This class is responsible for managing active MediaPlayerAndroid objects.
  class MEDIA_EXPORT MediaPlayerManager {
   public:
    virtual ~MediaPlayerManager() {}
  
    // Returns a pointer to the MediaResourceGetter object.
    virtual MediaResourceGetter* GetMediaResourceGetter() = 0;
  
    // Returns a pointer to the MediaUrlInterceptor object or null.
    virtual MediaUrlInterceptor* GetMediaUrlInterceptor() = 0;
  
    // Called when time update messages need to be sent. Args: player ID,
    // current timestamp, current time ticks.
    virtual void OnTimeUpdate(int player_id,
                              base::TimeDelta current_timestamp,
                              base::TimeTicks current_time_ticks) = 0;
  
    // Called when media metadata changed. Args: player ID, duration of the
    // media, width, height, whether the metadata is successfully extracted.
    virtual void OnMediaMetadataChanged(
        int player_id,
        base::TimeDelta duration,
        int width,
        int height,
        bool success) = 0;
  
    // Called when playback completed. Args: player ID.
    virtual void OnPlaybackComplete(int player_id) = 0;
  
    // Called when media download was interrupted. Args: player ID.
    virtual void OnMediaInterrupted(int player_id) = 0;
  
    // Called when buffering has changed. Args: player ID, percentage
    // of the media.
    virtual void OnBufferingUpdate(int player_id, int percentage) = 0;
  
    // Called when seek completed. Args: player ID, current time.
    virtual void OnSeekComplete(
        int player_id,
        const base::TimeDelta& current_time) = 0;
  
    // Called when error happens. Args: player ID, error type.
    virtual void OnError(int player_id, int error) = 0;
  
    // Called when video size has changed. Args: player ID, width, height.
    virtual void OnVideoSizeChanged(int player_id, int width, int height) = 0;
  
    // Called when the player pauses as a new key is required to decrypt
    // encrypted content.
    virtual void OnWaitingForDecryptionKey(int player_id) = 0;
  
    // Returns the player that's in the fullscreen mode currently.
    virtual MediaPlayerAndroid* GetFullscreenPlayer() = 0;
  
    // Returns the player with the specified id.
    virtual MediaPlayerAndroid* GetPlayer(int player_id) = 0;
  
    // Called by the player to request the playback for given duration. The
    // manager should use this opportunity to check if the current context is
    // appropriate for a media to play.
    // Returns whether the request was granted.
    virtual bool RequestPlay(int player_id,
                             base::TimeDelta duration,
                             bool has_audio) = 0;
  };
  
  }  // namespace media
  
  #endif  // MEDIA_BASE_ANDROID_MEDIA_PLAYER_MANAGER_H_
  