android_GenericMediaPlayer.h revision f6445d330c05ccc57d1adcc6ee05735a33f78881
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 onSeekComplete(); 89 virtual void onVolumeUpdate(); 90 virtual void onBufferingUpdate(const sp<AMessage> &msg); 91 virtual void onGetMediaPlayerInfo(); 92 virtual void onAttachAuxEffect(const sp<AMessage> &msg); 93 virtual void onSetAuxEffectSendLevel(const sp<AMessage> &msg); 94 95 bool mHasVideo; 96 int32_t mSeekTimeMsec; 97 98 sp<Surface> mVideoSurface; 99 sp<ISurfaceTexture> mVideoSurfaceTexture; 100 101 sp<IMediaPlayer> mPlayer; 102 // Receives Android MediaPlayer events from mPlayer 103 sp<MediaPlayerNotificationClient> mPlayerClient; 104 105 sp<IServiceManager> mServiceManager; 106 sp<IBinder> mBinder; 107 sp<IMediaPlayerService> mMediaPlayerService; 108 109 Parcel metadatafilter; 110 111 // for synchronous "getXXX" calls on misc MediaPlayer settings: currently querying: 112 // - position (time): protects GenericPlayer::mPositionMsec 113 Mutex mGetMediaPlayerInfoLock; 114 Condition mGetMediaPlayerInfoCondition; 115 // marks the current "generation" of MediaPlayer info,any change denotes more recent info, 116 // protected by mGetMediaPlayerInfoLock 117 uint32_t mGetMediaPlayerInfoGenCount; 118 119private: 120 DISALLOW_EVIL_CONSTRUCTORS(GenericMediaPlayer); 121 void afterMediaPlayerPreparedSuccessfully(); 122}; 123 124} // namespace android 125 126#endif /* __ANDROID_GENERICMEDIAPLAYER_H__ */ 127