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      1 // Copyright (c) 2013 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_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
      6 #define MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
      7 
      8 #include <jni.h>
      9 #include <string>
     10 
     11 #include "base/callback.h"
     12 #include "base/time/time.h"
     13 #include "media/base/media_export.h"
     14 #include "ui/gl/android/scoped_java_surface.h"
     15 #include "url/gurl.h"
     16 
     17 namespace media {
     18 
     19 class BrowserCdm;
     20 class MediaPlayerManager;
     21 
     22 // This class serves as the base class for different media player
     23 // implementations on Android. Subclasses need to provide their own
     24 // MediaPlayerAndroid::Create() implementation.
     25 class MEDIA_EXPORT MediaPlayerAndroid {
     26  public:
     27   virtual ~MediaPlayerAndroid();
     28 
     29   // Error types for MediaErrorCB.
     30   enum MediaErrorType {
     31     MEDIA_ERROR_FORMAT,
     32     MEDIA_ERROR_DECODE,
     33     MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK,
     34     MEDIA_ERROR_INVALID_CODE,
     35   };
     36 
     37   // Callback when the player needs decoding resources.
     38   typedef base::Callback<void(int player_id)> RequestMediaResourcesCB;
     39 
     40   // Callback when the player releases decoding resources.
     41   typedef base::Callback<void(int player_id)> ReleaseMediaResourcesCB;
     42 
     43   // Passing an external java surface object to the player.
     44   virtual void SetVideoSurface(gfx::ScopedJavaSurface surface) = 0;
     45 
     46   // Start playing the media.
     47   virtual void Start() = 0;
     48 
     49   // Pause the media.
     50   virtual void Pause(bool is_media_related_action) = 0;
     51 
     52   // Seek to a particular position, based on renderer signaling actual seek
     53   // with MediaPlayerHostMsg_Seek. If eventual success, OnSeekComplete() will be
     54   // called.
     55   virtual void SeekTo(base::TimeDelta timestamp) = 0;
     56 
     57   // Release the player resources.
     58   virtual void Release() = 0;
     59 
     60   // Set the player volume.
     61   virtual void SetVolume(double volume) = 0;
     62 
     63   // Get the media information from the player.
     64   virtual int GetVideoWidth() = 0;
     65   virtual int GetVideoHeight() = 0;
     66   virtual base::TimeDelta GetDuration() = 0;
     67   virtual base::TimeDelta GetCurrentTime() = 0;
     68   virtual bool IsPlaying() = 0;
     69   virtual bool IsPlayerReady() = 0;
     70   virtual bool CanPause() = 0;
     71   virtual bool CanSeekForward() = 0;
     72   virtual bool CanSeekBackward() = 0;
     73   virtual GURL GetUrl();
     74   virtual GURL GetFirstPartyForCookies();
     75 
     76   // Associates the |cdm| with this player.
     77   virtual void SetCdm(BrowserCdm* cdm);
     78 
     79   // Check whether the player still uses the current surface.
     80   virtual bool IsSurfaceInUse() const = 0;
     81 
     82   int player_id() { return player_id_; }
     83 
     84   GURL frame_url() { return frame_url_; }
     85 
     86  protected:
     87   MediaPlayerAndroid(int player_id,
     88                      MediaPlayerManager* manager,
     89                      const RequestMediaResourcesCB& request_media_resources_cb,
     90                      const ReleaseMediaResourcesCB& release_media_resources_cb,
     91                      const GURL& frame_url);
     92 
     93   MediaPlayerManager* manager() { return manager_; }
     94 
     95   RequestMediaResourcesCB request_media_resources_cb_;
     96 
     97   ReleaseMediaResourcesCB release_media_resources_cb_;
     98 
     99  private:
    100   // Player ID assigned to this player.
    101   int player_id_;
    102 
    103   // Resource manager for all the media players.
    104   MediaPlayerManager* manager_;
    105 
    106   // Url for the frame that contains this player.
    107   GURL frame_url_;
    108 
    109   DISALLOW_COPY_AND_ASSIGN(MediaPlayerAndroid);
    110 };
    111 
    112 }  // namespace media
    113 
    114 #endif  // MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
    115