mediaplayer.h revision b483c4724846c0b8d4e82afcbb7c17f671bae81c
1/* 2 * Copyright (C) 2007 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_MEDIAPLAYER_H 18#define ANDROID_MEDIAPLAYER_H 19 20#include <binder/IMemory.h> 21#include <media/IMediaPlayerClient.h> 22#include <media/IMediaPlayer.h> 23#include <media/IMediaDeathNotifier.h> 24 25#include <utils/KeyedVector.h> 26#include <utils/String8.h> 27 28namespace android { 29 30class Surface; 31class ISurfaceTexture; 32 33enum media_event_type { 34 MEDIA_NOP = 0, // interface test message 35 MEDIA_PREPARED = 1, 36 MEDIA_PLAYBACK_COMPLETE = 2, 37 MEDIA_BUFFERING_UPDATE = 3, 38 MEDIA_SEEK_COMPLETE = 4, 39 MEDIA_SET_VIDEO_SIZE = 5, 40 MEDIA_TIMED_TEXT = 99, 41 MEDIA_ERROR = 100, 42 MEDIA_INFO = 200, 43}; 44 45// Generic error codes for the media player framework. Errors are fatal, the 46// playback must abort. 47// 48// Errors are communicated back to the client using the 49// MediaPlayerListener::notify method defined below. 50// In this situation, 'notify' is invoked with the following: 51// 'msg' is set to MEDIA_ERROR. 52// 'ext1' should be a value from the enum media_error_type. 53// 'ext2' contains an implementation dependant error code to provide 54// more details. Should default to 0 when not used. 55// 56// The codes are distributed as follow: 57// 0xx: Reserved 58// 1xx: Android Player errors. Something went wrong inside the MediaPlayer. 59// 2xx: Media errors (e.g Codec not supported). There is a problem with the 60// media itself. 61// 3xx: Runtime errors. Some extraordinary condition arose making the playback 62// impossible. 63// 64enum media_error_type { 65 // 0xx 66 MEDIA_ERROR_UNKNOWN = 1, 67 // 1xx 68 MEDIA_ERROR_SERVER_DIED = 100, 69 // 2xx 70 MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200, 71 // 3xx 72}; 73 74 75// Info and warning codes for the media player framework. These are non fatal, 76// the playback is going on but there might be some user visible issues. 77// 78// Info and warning messages are communicated back to the client using the 79// MediaPlayerListener::notify method defined below. In this situation, 80// 'notify' is invoked with the following: 81// 'msg' is set to MEDIA_INFO. 82// 'ext1' should be a value from the enum media_info_type. 83// 'ext2' contains an implementation dependant info code to provide 84// more details. Should default to 0 when not used. 85// 86// The codes are distributed as follow: 87// 0xx: Reserved 88// 7xx: Android Player info/warning (e.g player lagging behind.) 89// 8xx: Media info/warning (e.g media badly interleaved.) 90// 91enum media_info_type { 92 // 0xx 93 MEDIA_INFO_UNKNOWN = 1, 94 // 7xx 95 // The video is too complex for the decoder: it can't decode frames fast 96 // enough. Possibly only the audio plays fine at this stage. 97 MEDIA_INFO_VIDEO_TRACK_LAGGING = 700, 98 // MediaPlayer is temporarily pausing playback internally in order to 99 // buffer more data. 100 MEDIA_INFO_BUFFERING_START = 701, 101 // MediaPlayer is resuming playback after filling buffers. 102 MEDIA_INFO_BUFFERING_END = 702, 103 // 8xx 104 // Bad interleaving means that a media has been improperly interleaved or not 105 // interleaved at all, e.g has all the video samples first then all the audio 106 // ones. Video is playing but a lot of disk seek may be happening. 107 MEDIA_INFO_BAD_INTERLEAVING = 800, 108 // The media is not seekable (e.g live stream). 109 MEDIA_INFO_NOT_SEEKABLE = 801, 110 // New media metadata is available. 111 MEDIA_INFO_METADATA_UPDATE = 802, 112}; 113 114 115 116enum media_player_states { 117 MEDIA_PLAYER_STATE_ERROR = 0, 118 MEDIA_PLAYER_IDLE = 1 << 0, 119 MEDIA_PLAYER_INITIALIZED = 1 << 1, 120 MEDIA_PLAYER_PREPARING = 1 << 2, 121 MEDIA_PLAYER_PREPARED = 1 << 3, 122 MEDIA_PLAYER_STARTED = 1 << 4, 123 MEDIA_PLAYER_PAUSED = 1 << 5, 124 MEDIA_PLAYER_STOPPED = 1 << 6, 125 MEDIA_PLAYER_PLAYBACK_COMPLETE = 1 << 7 126}; 127 128// ---------------------------------------------------------------------------- 129// ref-counted object for callbacks 130class MediaPlayerListener: virtual public RefBase 131{ 132public: 133 virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0; 134}; 135 136class MediaPlayer : public BnMediaPlayerClient, 137 public virtual IMediaDeathNotifier 138{ 139public: 140 MediaPlayer(); 141 ~MediaPlayer(); 142 void died(); 143 void disconnect(); 144 145 status_t setDataSource( 146 const char *url, 147 const KeyedVector<String8, String8> *headers); 148 149 status_t setDataSource(int fd, int64_t offset, int64_t length); 150 status_t setVideoSurface(const sp<Surface>& surface); 151 status_t setVideoSurfaceTexture( 152 const sp<ISurfaceTexture>& surfaceTexture); 153 status_t setListener(const sp<MediaPlayerListener>& listener); 154 status_t prepare(); 155 status_t prepareAsync(); 156 status_t start(); 157 status_t stop(); 158 status_t pause(); 159 bool isPlaying(); 160 status_t getVideoWidth(int *w); 161 status_t getVideoHeight(int *h); 162 status_t seekTo(int msec); 163 status_t getCurrentPosition(int *msec); 164 status_t getDuration(int *msec); 165 status_t reset(); 166 status_t setAudioStreamType(int type); 167 status_t setLooping(int loop); 168 bool isLooping(); 169 status_t setVolume(float leftVolume, float rightVolume); 170 void notify(int msg, int ext1, int ext2, const Parcel *obj = NULL); 171 static sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat); 172 static sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat); 173 status_t invoke(const Parcel& request, Parcel *reply); 174 status_t setMetadataFilter(const Parcel& filter); 175 status_t getMetadata(bool update_only, bool apply_filter, Parcel *metadata); 176 status_t setAudioSessionId(int sessionId); 177 int getAudioSessionId(); 178 status_t setAuxEffectSendLevel(float level); 179 status_t attachAuxEffect(int effectId); 180private: 181 void clear_l(); 182 status_t seekTo_l(int msec); 183 status_t prepareAsync_l(); 184 status_t getDuration_l(int *msec); 185 status_t setDataSource(const sp<IMediaPlayer>& player); 186 187 sp<IMediaPlayer> mPlayer; 188 thread_id_t mLockThreadId; 189 Mutex mLock; 190 Mutex mNotifyLock; 191 Condition mSignal; 192 sp<MediaPlayerListener> mListener; 193 void* mCookie; 194 media_player_states mCurrentState; 195 int mDuration; 196 int mCurrentPosition; 197 int mSeekPosition; 198 bool mPrepareSync; 199 status_t mPrepareStatus; 200 int mStreamType; 201 bool mLoop; 202 float mLeftVolume; 203 float mRightVolume; 204 int mVideoWidth; 205 int mVideoHeight; 206 int mAudioSessionId; 207 float mSendLevel; 208}; 209 210}; // namespace android 211 212#endif // ANDROID_MEDIAPLAYER_H 213