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/memory/weak_ptr.h" 13 #include "base/time/time.h" 14 #include "media/base/android/media_player_listener.h" 15 #include "media/base/media_export.h" 16 #include "ui/gl/android/scoped_java_surface.h" 17 #include "url/gurl.h" 18 19 namespace media { 20 21 class BrowserCdm; 22 class MediaPlayerManager; 23 24 // This class serves as the base class for different media player 25 // implementations on Android. Subclasses need to provide their own 26 // MediaPlayerAndroid::Create() implementation. 27 class MEDIA_EXPORT MediaPlayerAndroid { 28 public: 29 virtual ~MediaPlayerAndroid(); 30 31 // Error types for MediaErrorCB. 32 enum MediaErrorType { 33 MEDIA_ERROR_FORMAT, 34 MEDIA_ERROR_DECODE, 35 MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK, 36 MEDIA_ERROR_INVALID_CODE, 37 }; 38 39 // Callback when the player needs decoding resources. 40 typedef base::Callback<void(int player_id)> RequestMediaResourcesCB; 41 42 // Passing an external java surface object to the player. 43 virtual void SetVideoSurface(gfx::ScopedJavaSurface surface) = 0; 44 45 // Start playing the media. 46 virtual void Start() = 0; 47 48 // Pause the media. 49 virtual void Pause(bool is_media_related_action) = 0; 50 51 // Seek to a particular position, based on renderer signaling actual seek 52 // with MediaPlayerHostMsg_Seek. If eventual success, OnSeekComplete() will be 53 // called. 54 virtual void SeekTo(base::TimeDelta timestamp) = 0; 55 56 // Release the player resources. 57 virtual void Release() = 0; 58 59 // Set the player volume. 60 virtual void SetVolume(double volume) = 0; 61 62 // Get the media information from the player. 63 virtual int GetVideoWidth() = 0; 64 virtual int GetVideoHeight() = 0; 65 virtual base::TimeDelta GetDuration() = 0; 66 virtual base::TimeDelta GetCurrentTime() = 0; 67 virtual bool IsPlaying() = 0; 68 virtual bool IsPlayerReady() = 0; 69 virtual bool CanPause() = 0; 70 virtual bool CanSeekForward() = 0; 71 virtual bool CanSeekBackward() = 0; 72 virtual GURL GetUrl(); 73 virtual GURL GetFirstPartyForCookies(); 74 75 // Associates the |cdm| with this player. 76 virtual void SetCdm(BrowserCdm* cdm); 77 player_id()78 int player_id() { return player_id_; } 79 frame_url()80 GURL frame_url() { return frame_url_; } 81 82 protected: 83 MediaPlayerAndroid(int player_id, 84 MediaPlayerManager* manager, 85 const RequestMediaResourcesCB& request_media_resources_cb, 86 const GURL& frame_url); 87 88 // TODO(qinmin): Simplify the MediaPlayerListener class to only listen to 89 // media interrupt events. And have a separate child class to listen to all 90 // the events needed by MediaPlayerBridge. http://crbug.com/422597. 91 // MediaPlayerListener callbacks. 92 virtual void OnVideoSizeChanged(int width, int height); 93 virtual void OnMediaError(int error_type); 94 virtual void OnBufferingUpdate(int percent); 95 virtual void OnPlaybackComplete(); 96 virtual void OnMediaInterrupted(); 97 virtual void OnSeekComplete(); 98 virtual void OnMediaPrepared(); 99 100 // Attach/Detaches |listener_| for listening to all the media events. If 101 // |j_media_player| is NULL, |listener_| only listens to the system media 102 // events. Otherwise, it also listens to the events from |j_media_player|. 103 void AttachListener(jobject j_media_player); 104 void DetachListener(); 105 manager()106 MediaPlayerManager* manager() { return manager_; } 107 108 RequestMediaResourcesCB request_media_resources_cb_; 109 110 private: 111 friend class MediaPlayerListener; 112 113 // Player ID assigned to this player. 114 int player_id_; 115 116 // Resource manager for all the media players. 117 MediaPlayerManager* manager_; 118 119 // Url for the frame that contains this player. 120 GURL frame_url_; 121 122 // Listener object that listens to all the media player events. 123 scoped_ptr<MediaPlayerListener> listener_; 124 125 // Weak pointer passed to |listener_| for callbacks. 126 // NOTE: Weak pointers must be invalidated before all other member variables. 127 base::WeakPtrFactory<MediaPlayerAndroid> weak_factory_; 128 129 DISALLOW_COPY_AND_ASSIGN(MediaPlayerAndroid); 130 }; 131 132 } // namespace media 133 134 #endif // MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_ 135