content/browser/media/android/browser_media_player_manager.h

   1 // Copyright 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 CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_PLAYER_MANAGER_H_
   6 #define CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_PLAYER_MANAGER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/scoped_vector.h"
  12 #include "base/time/time.h"
  13 #include "content/browser/android/content_video_view.h"
  14 #include "content/browser/media/android/media_session_observer.h"
  15 #include "content/common/content_export.h"
  16 #include "content/common/media/media_player_messages_enums_android.h"
  17 #include "content/public/browser/android/content_view_core.h"
  18 #include "ipc/ipc_message.h"
  19 #include "media/base/android/media_player_android.h"
  20 #include "media/base/android/media_player_manager.h"
  21 #include "media/base/android/media_url_interceptor.h"
  22 #include "ui/gfx/geometry/rect_f.h"
  23 #include "url/gurl.h"
  24
  25 namespace media {
  26 class DemuxerAndroid;
  27 }
  28
  29 struct MediaPlayerHostMsg_Initialize_Params;
  30
  31 namespace content {
  32 class BrowserDemuxerAndroid;
  33 class ContentViewCoreImpl;
  34 class ExternalVideoSurfaceContainer;
  35 class RenderFrameHost;
  36 class WebContents;
  37
  38 // This class manages all the MediaPlayerAndroid objects.
  39 // It receives control operations from the the render process, and forwards
  40 // them to corresponding MediaPlayerAndroid object. Callbacks from
  41 // MediaPlayerAndroid objects are converted to IPCs and then sent to the render
  42 // process.
  43 class CONTENT_EXPORT BrowserMediaPlayerManager
  44     : public media::MediaPlayerManager,
  45       public MediaSessionObserver {
  46  public:
  47   // Permits embedders to provide an extended version of the class.
  48   typedef BrowserMediaPlayerManager* (*Factory)(RenderFrameHost*);
  49   static void RegisterFactory(Factory factory);
  50
  51   // Permits embedders to handle custom urls.
  52   static void RegisterMediaUrlInterceptor(
  53       media::MediaUrlInterceptor* media_url_interceptor);
  54
  55   // Pass a java surface object to the MediaPlayerAndroid object
  56   // identified by render process handle, render frame ID and player ID.
  57   static void SetSurfacePeer(scoped_refptr<gfx::SurfaceTexture> surface_texture,
  58                              base::ProcessHandle render_process_handle,
  59                              int render_frame_id,
  60                              int player_id);
  61
  62   // Returns a new instance using the registered factory if available.
  63   static BrowserMediaPlayerManager* Create(RenderFrameHost* rfh);
  64
  65   ContentViewCore* GetContentViewCore() const;
  66
  67   ~BrowserMediaPlayerManager() override;
  68
  69   // Fullscreen video playback controls.
  70   virtual void ExitFullscreen(bool release_media_player);
  71   virtual void SetVideoSurface(gfx::ScopedJavaSurface surface);
  72
  73   // Called when browser player wants the renderer media element to seek.
  74   // Any actual seek started by renderer will be handled by browser in OnSeek().
  75   void OnSeekRequest(int player_id, const base::TimeDelta& time_to_seek);
  76
  77   // Stops and releases every media managed by this class.
  78   void ReleaseAllMediaPlayers();
  79
  80   // media::MediaPlayerManager overrides.
  81   void OnTimeUpdate(int player_id,
  82                     base::TimeDelta current_timestamp,
  83                     base::TimeTicks current_time_ticks) override;
  84   void OnMediaMetadataChanged(int player_id,
  85                               base::TimeDelta duration,
  86                               int width,
  87                               int height,
  88                               bool success) override;
  89   void OnPlaybackComplete(int player_id) override;
  90   void OnMediaInterrupted(int player_id) override;
  91   void OnBufferingUpdate(int player_id, int percentage) override;
  92   void OnSeekComplete(int player_id,
  93                       const base::TimeDelta& current_time) override;
  94   void OnError(int player_id, int error) override;
  95   void OnVideoSizeChanged(int player_id, int width, int height) override;
  96   void OnWaitingForDecryptionKey(int player_id) override;
  97
  98   media::MediaResourceGetter* GetMediaResourceGetter() override;
  99   media::MediaUrlInterceptor* GetMediaUrlInterceptor() override;
 100   media::MediaPlayerAndroid* GetFullscreenPlayer() override;
 101   media::MediaPlayerAndroid* GetPlayer(int player_id) override;
 102   bool RequestPlay(int player_id) override;
 103 #if defined(VIDEO_HOLE)
 104   void AttachExternalVideoSurface(int player_id, jobject surface);
 105   void DetachExternalVideoSurface(int player_id);
 106   void OnFrameInfoUpdated();
 107 #endif  // defined(VIDEO_HOLE)
 108
 109   // MediaSessionObserver overrides.
 110   void OnSuspend(int player_id) override;
 111   void OnResume(int player_id) override;
 112
 113   // Message handlers.
 114   virtual void OnEnterFullscreen(int player_id);
 115   virtual void OnInitialize(
 116       const MediaPlayerHostMsg_Initialize_Params& media_player_params);
 117   virtual void OnStart(int player_id);
 118   virtual void OnSeek(int player_id, const base::TimeDelta& time);
 119   virtual void OnPause(int player_id, bool is_media_related_action);
 120   virtual void OnSetVolume(int player_id, double volume);
 121   virtual void OnSetPoster(int player_id, const GURL& poster);
 122   virtual void OnReleaseResources(int player_id);
 123   virtual void OnDestroyPlayer(int player_id);
 124   virtual void OnRequestRemotePlayback(int player_id);
 125   virtual void OnRequestRemotePlaybackControl(int player_id);
 126   virtual void ReleaseFullscreenPlayer(media::MediaPlayerAndroid* player);
 127 #if defined(VIDEO_HOLE)
 128   void OnNotifyExternalSurface(
 129       int player_id, bool is_request, const gfx::RectF& rect);
 130 #endif  // defined(VIDEO_HOLE)
 131
 132  protected:
 133   // Clients must use Create() or subclass constructor.
 134   explicit BrowserMediaPlayerManager(RenderFrameHost* render_frame_host);
 135
 136   WebContents* web_contents() const { return web_contents_; }
 137
 138   // Adds a given player to the list.
 139   void AddPlayer(media::MediaPlayerAndroid* player);
 140
 141   // Removes the player with the specified id.
 142   void RemovePlayer(int player_id);
 143
 144   // Replaces a player with the specified id with a given MediaPlayerAndroid
 145   // object. This will also return the original MediaPlayerAndroid object that
 146   // was replaced.
 147   scoped_ptr<media::MediaPlayerAndroid> SwapPlayer(
 148       int player_id,
 149       media::MediaPlayerAndroid* player);
 150
 151   int RoutingID();
 152
 153   // Helper function to send messages to RenderFrameObserver.
 154   bool Send(IPC::Message* msg);
 155
 156  private:
 157   // Constructs a MediaPlayerAndroid object.
 158   media::MediaPlayerAndroid* CreateMediaPlayer(
 159       const MediaPlayerHostMsg_Initialize_Params& media_player_params,
 160       bool hide_url_log,
 161       BrowserDemuxerAndroid* demuxer);
 162
 163   // MediaPlayerAndroid must call this before it is going to decode
 164   // media streams. This helps the manager object maintain an array
 165   // of active MediaPlayerAndroid objects and release the resources
 166   // when needed. Currently we only count video resources as they are
 167   // constrained by hardware and memory limits.
 168   virtual void OnMediaResourcesRequested(int player_id);
 169
 170   // Called when a player releases all decoding resources.
 171   void ReleaseMediaResources(int player_id);
 172
 173   // Releases the player. However, don't remove it from |players_|.
 174   void ReleasePlayer(media::MediaPlayerAndroid* player);
 175
 176 #if defined(VIDEO_HOLE)
 177   void ReleasePlayerOfExternalVideoSurfaceIfNeeded(int future_player);
 178   void OnRequestExternalSurface(int player_id, const gfx::RectF& rect);
 179 #endif  // defined(VIDEO_HOLE)
 180
 181   RenderFrameHost* const render_frame_host_;
 182
 183   // An array of managed players.
 184   ScopedVector<media::MediaPlayerAndroid> players_;
 185
 186   // The fullscreen video view object or NULL if video is not played in
 187   // fullscreen.
 188   scoped_ptr<ContentVideoView> video_view_;
 189
 190 #if defined(VIDEO_HOLE)
 191   scoped_ptr<ExternalVideoSurfaceContainer> external_video_surface_container_;
 192 #endif
 193
 194   // Player ID of the fullscreen media player.
 195   int fullscreen_player_id_;
 196
 197   // Whether the fullscreen player has been Release()-d.
 198   bool fullscreen_player_is_released_;
 199
 200   WebContents* const web_contents_;
 201
 202   // Object for retrieving resources media players.
 203   scoped_ptr<media::MediaResourceGetter> media_resource_getter_;
 204
 205   // NOTE: Weak pointers must be invalidated before all other member variables.
 206   base::WeakPtrFactory<BrowserMediaPlayerManager> weak_ptr_factory_;
 207
 208   DISALLOW_COPY_AND_ASSIGN(BrowserMediaPlayerManager);
 209 };
 210
 211 }  // namespace content
 212
 213 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_PLAYER_MANAGER_H_