android_GenericMediaPlayer.h revision 3610785fa93586ce84a27a27530feb77b8035229
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef __ANDROID_GENERICMEDIAPLAYER_H__ 18#define __ANDROID_GENERICMEDIAPLAYER_H__ 19 20#include "android_GenericPlayer.h" 21 22#include <binder/IServiceManager.h> 23#include <surfaceflinger/Surface.h> 24#include <gui/ISurfaceTexture.h> 25 26 27//-------------------------------------------------------------------------------------------------- 28namespace android { 29 30class GenericMediaPlayer; 31class MediaPlayerNotificationClient : public BnMediaPlayerClient 32{ 33public: 34 MediaPlayerNotificationClient(GenericMediaPlayer* gmp); 35 virtual ~MediaPlayerNotificationClient(); 36 37 // IMediaPlayerClient implementation 38 virtual void notify(int msg, int ext1, int ext2, const Parcel *obj); 39 40 // Call before enqueuing a prepare event 41 void beforePrepare(); 42 43 // Call after enqueueing the prepare event; returns true if the prepare 44 // completed successfully, or false if it completed unsuccessfully 45 bool blockUntilPlayerPrepared(); 46 47private: 48 Mutex mLock; 49 GenericMediaPlayer* mGenericMediaPlayer; 50 Condition mPlayerPreparedCondition; 51 enum { 52 PREPARE_NOT_STARTED, 53 PREPARE_IN_PROGRESS, 54 PREPARE_COMPLETED_SUCCESSFULLY, 55 PREPARE_COMPLETED_UNSUCCESSFULLY 56 } mPlayerPrepared; 57}; 58 59 60//-------------------------------------------------------------------------------------------------- 61class GenericMediaPlayer : public GenericPlayer 62{ 63public: 64 65 GenericMediaPlayer(const AudioPlayback_Parameters* params, bool hasVideo); 66 virtual ~GenericMediaPlayer(); 67 68 virtual void preDestroy(); 69 70 // overridden from GenericPlayer 71 virtual void getPositionMsec(int* msec); // ANDROID_UNKNOWN_TIME if unknown 72 73 virtual void setVideoSurface(const sp<Surface> &surface); 74 virtual void setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture); 75 76protected: 77 friend class MediaPlayerNotificationClient; 78 79 // overridden from GenericPlayer 80 virtual void onMessageReceived(const sp<AMessage> &msg); 81 82 // Async event handlers (called from GenericPlayer's event loop) 83 virtual void onPrepare(); 84 virtual void onPlay(); 85 virtual void onPause(); 86 virtual void onSeek(const sp<AMessage> &msg); 87 virtual void onLoop(const sp<AMessage> &msg); 88 virtual void onVolumeUpdate(); 89 virtual void onBufferingUpdate(const sp<AMessage> &msg); 90 virtual void onGetMediaPlayerInfo(); 91 virtual void onAttachAuxEffect(const sp<AMessage> &msg); 92 virtual void onSetAuxEffectSendLevel(const sp<AMessage> &msg); 93 94 bool mHasVideo; 95 int32_t mSeekTimeMsec; 96 97 sp<Surface> mVideoSurface; 98 sp<ISurfaceTexture> mVideoSurfaceTexture; 99 100 sp<IMediaPlayer> mPlayer; 101 // Receives Android MediaPlayer events from mPlayer 102 sp<MediaPlayerNotificationClient> mPlayerClient; 103 104 sp<IServiceManager> mServiceManager; 105 sp<IBinder> mBinder; 106 sp<IMediaPlayerService> mMediaPlayerService; 107 108 Parcel metadatafilter; 109 110 // for synchronous "getXXX" calls on misc MediaPlayer settings: currently querying: 111 // - position (time): protects GenericPlayer::mPositionMsec 112 Mutex mGetMediaPlayerInfoLock; 113 Condition mGetMediaPlayerInfoCondition; 114 // marks the current "generation" of MediaPlayer info,any change denotes more recent info, 115 // protected by mGetMediaPlayerInfoLock 116 uint32_t mGetMediaPlayerInfoGenCount; 117 118private: 119 DISALLOW_EVIL_CONSTRUCTORS(GenericMediaPlayer); 120 void onAfterMediaPlayerPrepared(); 121}; 122 123} // namespace android 124 125#endif /* __ANDROID_GENERICMEDIAPLAYER_H__ */ 126