media/base/android/media_codec_player.h

   1 // Copyright 2015 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_CODEC_PLAYER_H_
   6 #define MEDIA_BASE_ANDROID_MEDIA_CODEC_PLAYER_H_
   7
   8 #include "base/android/scoped_java_ref.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/threading/thread.h"
  12 #include "media/base/android/demuxer_android.h"
  13 #include "media/base/android/media_player_android.h"
  14 #include "media/base/media_export.h"
  15 #include "ui/gl/android/scoped_java_surface.h"
  16
  17 namespace media {
  18
  19 class BrowserCdm;
  20
  21 // Returns the task runner for the media thread
  22 MEDIA_EXPORT scoped_refptr<base::SingleThreadTaskRunner> GetMediaTaskRunner();
  23
  24
  25 // This class implements the media player using Android's MediaCodec.
  26 // It differs from MediaSourcePlayer in that it removes most
  27 // processing away from UI thread: it uses a dedicated Media thread
  28 // to receive the data and to handle commands.
  29 class MEDIA_EXPORT MediaCodecPlayer : public MediaPlayerAndroid,
  30                                       public DemuxerAndroidClient {
  31  public:
  32   // Constructs a player with the given ID and demuxer. |manager| must outlive
  33   // the lifetime of this object.
  34   MediaCodecPlayer(int player_id,
  35                    MediaPlayerManager* manager,
  36                    const RequestMediaResourcesCB& request_media_resources_cb,
  37                    scoped_ptr<DemuxerAndroid> demuxer,
  38                    const GURL& frame_url);
  39   ~MediaCodecPlayer() override;
  40
  41   // MediaPlayerAndroid implementation.
  42   void DeleteOnCorrectThread() override;
  43   void SetVideoSurface(gfx::ScopedJavaSurface surface) override;
  44   void Start() override;
  45   void Pause(bool is_media_related_action) override;
  46   void SeekTo(base::TimeDelta timestamp) override;
  47   void Release() override;
  48   void SetVolume(double volume) override;
  49   int GetVideoWidth() override;
  50   int GetVideoHeight() override;
  51   base::TimeDelta GetCurrentTime() override;
  52   base::TimeDelta GetDuration() override;
  53   bool IsPlaying() override;
  54   bool CanPause() override;
  55   bool CanSeekForward() override;
  56   bool CanSeekBackward() override;
  57   bool IsPlayerReady() override;
  58   void SetCdm(BrowserCdm* cdm) override;
  59
  60   // DemuxerAndroidClient implementation.
  61   void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) override;
  62   void OnDemuxerDataAvailable(const DemuxerData& params) override;
  63   void OnDemuxerSeekDone(base::TimeDelta actual_browser_seek_time) override;
  64   void OnDemuxerDurationChanged(base::TimeDelta duration) override;
  65
  66   // Helper methods
  67   void Initialize();
  68   void DestroySelf();
  69
  70  private:
  71   // Object for posting tasks on UI thread.
  72   scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
  73
  74   scoped_ptr<DemuxerAndroid> demuxer_;
  75
  76   base::WeakPtr<MediaCodecPlayer> weak_this_;
  77   // NOTE: Weak pointers must be invalidated before all other member variables.
  78   base::WeakPtrFactory<MediaCodecPlayer> weak_factory_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(MediaCodecPlayer);
  81 };
  82
  83 }  // namespace media
  84
  85 #endif  // MEDIA_BASE_ANDROID_MEDIA_CODEC_PLAYER_H_