Prepare MediaDrmBridge to work with MediaCodecPlayer

media/base/android/media_codec_player.h

 // Copyright 2015 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_CODEC_PLAYER_H_
 #define MEDIA_BASE_ANDROID_MEDIA_CODEC_PLAYER_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 120 matching lines @@
 //  [  Stopping   ] -----------------------> |         |
 //                  StopDone                 --       --
 //                    w/pending seek:
 //                      demuxer.RequestSeek
 
 namespace media {
 
 class BrowserCdm;
 class MediaCodecAudioDecoder;
 class MediaCodecVideoDecoder;
+class MediaDrmBridge;
 
 // Returns the task runner for the media thread
 MEDIA_EXPORT scoped_refptr<base::SingleThreadTaskRunner> GetMediaTaskRunner();
 
 class MEDIA_EXPORT MediaCodecPlayer : public MediaPlayerAndroid,
                                       public DemuxerAndroidClient {
  public:
   // Typedefs for the notification callbacks
   typedef base::Callback<void(base::TimeDelta, const gfx::Size&)>
       MetadataChangedCallback;
@@ skipping 59 matching lines @@
 
  private:
   // The state machine states.
   enum PlayerState {
     kStatePaused,
     kStateWaitingForConfig,
     kStatePrefetching,
     kStatePlaying,
     kStateStopping,
     kStateWaitingForSurface,
+    kStateWaitingForKey,
+    kStateWaitingForCrypto,
     kStateWaitingForSeek,
     kStateError,
   };
 
   enum StartStatus {
     kStartOk = 0,
     kStartBrowserSeekRequired,
+    kStartCryptoRequired,
     kStartFailed,
   };
 
   // Cached values for the manager.
   struct MediaMetadata {
     base::TimeDelta duration;
     gfx::Size video_size;
   };
 
   // Information about current seek in progress.
@@ skipping 12 matching lines @@
   // This method caches the current time and calls manager's OnTimeUpdate().
   void OnTimeUpdate(base::TimeDelta current_timestamp,
                     base::TimeTicks current_time_ticks) override;
 
   // Callbacks from decoders
   void RequestDemuxerData(DemuxerStream::Type stream_type);
   void OnPrefetchDone();
   void OnPrerollDone();
   void OnDecoderDrained(DemuxerStream::Type type);
   void OnStopDone(DemuxerStream::Type type);
+  void OnKeyRequired(DemuxerStream::Type type);
   void OnError();
   void OnStarvation(DemuxerStream::Type stream_type);
   void OnTimeIntervalUpdate(DemuxerStream::Type stream_type,
                             base::TimeDelta now_playing,
                             base::TimeDelta last_buffered,
                             bool postpone);
 
   // Callbacks from video decoder
   void OnVideoCodecCreated();
   void OnVideoResolutionChanged(const gfx::Size& size);
 
+  // Callbacks from DRM
+  void OnMediaCryptoReady();
+  void OnKeyAdded();
+  void OnCdmUnset();
+
   // Operations called from the state machine.
   void SetState(PlayerState new_state);
   void SetPendingStart(bool need_to_start);
   bool HasPendingStart() const;
   void SetPendingSeek(base::TimeDelta timestamp);
   base::TimeDelta GetPendingSeek() const;
   bool HasVideo() const;
   bool HasAudio() const;
   void SetDemuxerConfigs(const DemuxerConfigs& configs);
   void StartPrefetchDecoders();
@@ skipping 68 matching lines @@
 
   // Configuration data for the manager, accessed on the UI thread.
   MediaMetadata metadata_cache_;
 
   // Cached current time, accessed on UI thread.
   base::TimeDelta current_time_cache_;
 
   // For testing only.
   DecodersTimeCallback decoders_time_cb_;
 
+  // DRM
+  MediaDrmBridge* drm_bridge_;
+  int cdm_registration_id_;
+
+  // The flag is set when the player receives the error from decoder that the
+  // decoderneeds a new encryption key. Cleared on starting the playback.
+  bool key_is_required_;
+
+  // The flag is set after the new encryption key is added to MediaDrm. Cleared
+  // on starting the playback.
+  bool key_is_added_;
+
   base::WeakPtr<MediaCodecPlayer> media_weak_this_;
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaCodecPlayer> media_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaCodecPlayer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_CODEC_PLAYER_H_