Delete MediaCodecPlayer, it's time!

media/base/android/media_codec_player.h

Index: media/base/android/media_codec_player.h
diff --git a/media/base/android/media_codec_player.h b/media/base/android/media_codec_player.h
deleted file mode 100644
index ef98691a45f933c00856bcb6bbc261504765038d..0000000000000000000000000000000000000000
--- a/media/base/android/media_codec_player.h
+++ /dev/null
@@ -1,429 +0,0 @@
-// 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 <memory>
-
-#include "base/android/scoped_java_ref.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/threading/thread.h"
-#include "base/time/default_tick_clock.h"
-#include "media/base/android/demuxer_android.h"
-#include "media/base/android/media_drm_bridge.h"
-#include "media/base/android/media_player_android.h"
-#include "media/base/android/media_statistics.h"
-#include "media/base/demuxer_stream.h"
-#include "media/base/media_export.h"
-#include "media/base/time_delta_interpolator.h"
-#include "ui/gfx/geometry/size.h"
-#include "ui/gl/android/scoped_java_surface.h"
-
-// The MediaCodecPlayer class implements the media player by using Android's
-// MediaCodec. It differs from MediaSourcePlayer in that it removes most
-// processing away from the UI thread: it uses a dedicated Media thread to
-// receive the data and to handle the commands.
-
-// The player works as a state machine. Here are relationships between states:
-//
-//   [ Paused ] ------------------------                         (Any state)
-//        |                             |                             |
-//        |                             v                             v
-//        | <------------------[ WaitingForConfig ]               [ Error ]
-//        |
-//        |
-//        | <----------------------------------------------
-//        |                                                |
-//   [ Waiting for permission ]                            |
-//        |                                                |
-//        |                                                |
-//        v                                                |
-//   [ Prefetching ] -------------------                   |
-//        |                             |                  |
-//        |                             v                  |
-//        | <-----------------[ WaitingForSurface ]        |
-//        v                                                |
-//   [ Playing ]                                           |
-//        |                                                |
-//        |                                                |
-//        v                                                |
-//   [ Stopping ] --------------------------------> [ WaitingForSeek ]
-
-
-//  Events and actions for pause/resume workflow.
-//  ---------------------------------------------
-//
-//                                         Start, no config:
-//    ------------------------> [ Paused ] -----------------> [   Waiting   ]
-//    |  StopDone:                                            [ for configs ]
-//    |                            ^  |                              /
-//    |                            |  |                             /
-//    |                    Pause:  |  | Start w/config:            /
-//    |        Permission denied:  |  |    requestPermission      /
-//    |                            |  |                          /
-//    |                            |  |                         /
-//    |                            |  |                        /
-//    |                            |  |                       / DemuxerConfigs:
-//    |                            |  |                      / requestPermission
-//    |                            |  |                     /
-//    |                            |  |                    /
-//    |                            |  v                   /
-//    |                                                  /
-//    |   ------------------> [ Waiting for ]  <--------/
-//    |   |                   [ permission  ]
-//    |   |                          |
-//    |   |                          |
-//    |   |                          | Permission granted:
-//    |   |                          |     dec.Prefetch
-//    |   |                          |
-//    |   |                          |
-//    |   |                          v
-//    |   |
-//    |   |                   [ Prefetching ]                  [   Waiting   ]
-//    |   |                   [             ] -------------->  [ for surface ]
-//    |   |                          |         PrefetchDone,         /
-//    |   |                          |          no surface:         /
-//    |   |                          |                             /
-//    |   |                          |                            /
-//    |   | StopDone w/              |                           /
-//    |   | pending start:           | PrefetchDone:            /
-//    |   |    dec.Prefetch          |   dec.Start             /
-//    |   |                          |                        / SetSurface:
-//    |   |                          |                       /     dec.Start
-//    |   |                          |                      /
-//    |   |                          v                     /
-//    |   |                                               /
-//    |   |                     [ Playing ]   <----------/
-//    |   |
-//    |   |                          |
-//    |   |                          |
-//    |   |                          | Pause: dec.RequestToStop
-//    |   |                          |
-//    |   |                          |
-//    |   |                          v
-//    |   |
-//    ------------------------- [ Stopping ]
-
-
-//   Events and actions for seek workflow.
-//   -------------------------------------
-//
-//                   Seek:                   --       --
-//                       demuxer.RequestSeek |         |
-//  [   Paused    ] -----------------------> |         |
-//  [             ] <----------------------- |         |--
-//                      SeekDone:            |         |  |
-//                                           |         |  |
-//                                           |         |  |
-//                                           |         |  |
-//                                           |         |  | Start:
-//                                           |         |  |   SetPendingStart
-//                Seek: dec.Stop             |         |  |
-//                      SetPendingStart      |         |  |
-//                      demuxer.RequestSeek  |         |  |
-//  [ Waiting for ] -----------------------> |         |  |
-//  [ permission  ] <----------------------  |         |  | Pause:
-//                   SeekDone                |         |  |   RemovePendingStart
-//        |          w/pending start:        |         |  |
-//        |            requestPermission     | Waiting |  |
-//        |                                  |   for   |  | Seek:
-//        |                                  |   seek  |  |   SetPendingSeek
-//        |                                  |         |  |
-//        |       Seek: dec.Stop             |         |  |
-//        v             SetPendingStart      |         |  |
-//                      demuxer.RequestSeek  |         |  |
-//   [ Prefetching ] ----------------------> |         |  |
-//                                           |         |  |
-//        |                                  |         |  |
-//        | PrefetchDone: dec.Start          |         |  |
-//        |                                  |         |  | SeekDone
-//        v                                  |         |  | w/pending seek:
-//                                           |         |  | demuxer.RequestSeek
-//  [   Playing   ]                          |         |  |
-//                                           |         |  |
-//        |                                  |         |<-
-//        | Seek: SetPendingStart            |         |
-//        |       SetPendingSeek             |         |
-//        |       dec.RequestToStop          |         |
-//        |                                  |         |
-//        |                                  |         |
-//        v                                  |         |
-//                                           |         |
-//  [  Stopping   ] -----------------------> |         |
-//                  StopDone                 --       --
-//                    w/pending seek:
-//                      demuxer.RequestSeek
-
-namespace media {
-
-class AudioMediaCodecDecoder;
-class VideoMediaCodecDecoder;
-
-class MEDIA_EXPORT MediaCodecPlayer : public MediaPlayerAndroid,
-                                      public DemuxerAndroidClient {
- public:
-  // Typedefs for the notification callbacks
-  typedef base::Callback<void(base::TimeDelta, const gfx::Size&)>
-      MetadataChangedCallback;
-
-  typedef base::Callback<void(base::TimeDelta, base::TimeTicks)>
-      TimeUpdateCallback;
-
-  typedef base::Callback<void(const base::TimeDelta& current_timestamp)>
-      SeekDoneCallback;
-
-  typedef base::Callback<void(int)> ErrorCallback;
-
-  // For testing only.
-  typedef base::Callback<void(DemuxerStream::Type,
-                              base::TimeDelta,
-                              base::TimeDelta)> DecodersTimeCallback;
-
-  // For testing only.
-  typedef base::Callback<void(DemuxerStream::Type)> CodecCreatedCallback;
-
-  // Constructs a player with the given ID and demuxer. |manager| must outlive
-  // the lifetime of this object.
-  MediaCodecPlayer(
-      int player_id,
-      base::WeakPtr<MediaPlayerManager> manager,
-      const OnDecoderResourcesReleasedCB& on_decoder_resources_released_cb,
-      std::unique_ptr<DemuxerAndroid> demuxer,
-      const GURL& frame_url,
-      int media_session_id);
-  ~MediaCodecPlayer() override;
-
-  // A helper method that performs the media thread part of initialization.
-  void Initialize();
-
-  // MediaPlayerAndroid implementation.
-  void DeleteOnCorrectThread() override;
-  void SetVideoSurface(gl::ScopedJavaSurface surface) override;
-  void Start() override;
-  void Pause(bool is_media_related_action) override;
-  void SeekTo(base::TimeDelta timestamp) override;
-  void Release() override;
-  bool HasVideo() const override;
-  bool HasAudio() const override;
-  int GetVideoWidth() override;
-  int GetVideoHeight() override;
-  base::TimeDelta GetCurrentTime() override;
-  base::TimeDelta GetDuration() override;
-  bool IsPlaying() override;
-  bool CanPause() override;
-  bool CanSeekForward() override;
-  bool CanSeekBackward() override;
-  bool IsPlayerReady() override;
-  void SetCdm(const scoped_refptr<MediaKeys>& cdm) override;
-
-  // DemuxerAndroidClient implementation.
-  void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) override;
-  void OnDemuxerDataAvailable(const DemuxerData& params) override;
-  void OnDemuxerSeekDone(base::TimeDelta actual_browser_seek_time) override;
-  void OnDemuxerDurationChanged(base::TimeDelta duration) override;
-
-  // For testing only.
-  void SetDecodersTimeCallbackForTests(DecodersTimeCallback cb);
-  void SetCodecCreatedCallbackForTests(CodecCreatedCallback cb);
-  void SetAlwaysReconfigureForTests(DemuxerStream::Type type);
-  bool IsPrerollingForTests(DemuxerStream::Type type) const;
-
- private:
-  // The state machine states.
-  enum PlayerState {
-    kStatePaused,
-    kStateWaitingForConfig,
-    kStateWaitingForPermission,
-    kStatePrefetching,
-    kStatePlaying,
-    kStateStopping,
-    kStateWaitingForSurface,
-    kStateWaitingForKey,
-    kStateWaitingForMediaCrypto,
-    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.
-  struct SeekInfo {
-    const base::TimeDelta seek_time;
-    const bool is_browser_seek;
-    SeekInfo(base::TimeDelta time, bool browser_seek)
-        : seek_time(time), is_browser_seek(browser_seek) {}
-  };
-
-  // MediaPlayerAndroid implementation.
-  void UpdateEffectiveVolumeInternal(double effective_volume) override;
-
-  // This method requests playback permission from the manager on UI
-  // thread, passing total duration and whether the media has audio
-  // track as arguments. The method posts the result to the media
-  // thread.
-  void RequestPermissionAndPostResult(base::TimeDelta duration,
-                                      bool has_audio) override;
-
-  // This method caches the data and calls manager's OnMediaMetadataChanged().
-  void OnMediaMetadataChanged(base::TimeDelta duration,
-                              const gfx::Size& video_size) override;
-
-  // This method caches the current time and calls manager's OnTimeUpdate().
-  void OnTimeUpdate(base::TimeDelta current_timestamp,
-                    base::TimeTicks current_time_ticks) override;
-
-  // Callback from manager
-  void OnPermissionDecided(bool granted);
-
-  // Callbacks from decoders
-  void RequestDemuxerData(DemuxerStream::Type stream_type);
-  void OnPrefetchDone();
-  void OnPrerollDone();
-  void OnDecoderDrained(DemuxerStream::Type type);
-  void OnStopDone(DemuxerStream::Type type);
-  void OnMissingKeyReported(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 OnVideoResolutionChanged(const gfx::Size& size);
-
-  // Callbacks from MediaDrmBridge.
-  void OnMediaCryptoReady(MediaDrmBridge::JavaObjectPtr media_crypto,
-                          bool needs_protected_surface);
-  void OnKeyAdded();
-
-  // 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;
-  void SetDemuxerConfigs(const DemuxerConfigs& configs);
-  void RequestPlayPermission();
-  void StartPrefetchDecoders();
-  void StartPlaybackOrBrowserSeek();
-  StartStatus StartPlaybackDecoders();
-  StartStatus ConfigureDecoders();
-  StartStatus MaybePrerollDecoders(bool* preroll_required);
-  StartStatus StartDecoders();
-  void StopDecoders();
-  void RequestToStopDecoders();
-  void RequestDemuxerSeek(base::TimeDelta seek_time,
-                          bool is_browser_seek = false);
-  void ReleaseDecoderResources();
-
-  // Helper methods.
-  void CreateDecoders();
-  bool AudioFinished() const;
-  bool VideoFinished() const;
-  base::TimeDelta GetInterpolatedTime();
-
-  static const char* AsString(PlayerState state);
-
-  // Data.
-
-  // Object for posting tasks on UI thread.
-  scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
-
-  // Major components: demuxer, audio and video decoders.
-  std::unique_ptr<DemuxerAndroid> demuxer_;
-  std::unique_ptr<AudioMediaCodecDecoder> audio_decoder_;
-  std::unique_ptr<VideoMediaCodecDecoder> video_decoder_;
-
-  // The state of the state machine.
-  PlayerState state_;
-
-  // Notification callbacks, they call MediaPlayerManager.
-  TimeUpdateCallback time_update_cb_;
-  base::Closure completion_cb_;
-  base::Closure waiting_for_decryption_key_cb_;
-  SeekDoneCallback seek_done_cb_;
-  ErrorCallback error_cb_;
-
-  // A callback that updates metadata cache and calls the manager.
-  MetadataChangedCallback metadata_changed_cb_;
-
-  // We call the base class' AttachListener() and DetachListener() methods on UI
-  // thread with these callbacks.
-  base::Closure attach_listener_cb_;
-  base::Closure detach_listener_cb_;
-
-  // Error callback is posted by decoders or by this class itself if we cannot
-  // configure or start decoder.
-  base::Closure internal_error_cb_;
-
-  // Total duration reported by demuxer.
-  base::TimeDelta duration_;
-
-  // base::TickClock used by |interpolator_|.
-  base::DefaultTickClock default_tick_clock_;
-
-  // Tracks the most recent media time update and provides interpolated values
-  // as playback progresses.
-  TimeDeltaInterpolator interpolator_;
-
-  // Pending data to be picked up by the upcoming state.
-  gl::ScopedJavaSurface pending_surface_;
-  bool pending_start_;
-  base::TimeDelta pending_seek_;
-
-  // Data associated with a seek in progress.
-  std::unique_ptr<SeekInfo> seek_info_;
-
-  // 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_;
-
-  // Holds a ref-count to the CDM to keep |media_crypto_| valid.
-  scoped_refptr<MediaKeys> cdm_;
-
-  MediaDrmBridge::JavaObjectPtr media_crypto_;
-
-  int cdm_registration_id_;
-
-  // The flag is set when the player receives the error from decoder that the
-  // decoder needs a new decryption 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_;
-
-  // Gathers and reports playback quality statistics to UMA.
-  // Use pointer to enable replacement of this object for tests.
-  std::unique_ptr<MediaStatistics> media_stat_;
-
-  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_