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 <arpa/inet.h> 21 22 #include <binder/IMemory.h> 23 #include <media/IMediaPlayerClient.h> 24 #include <media/IMediaPlayer.h> 25 #include <media/IMediaDeathNotifier.h> 26 #include <media/IStreamSource.h> 27 28 #include <utils/KeyedVector.h> 29 #include <utils/String8.h> 30 31 class ANativeWindow; 32 33 namespace android { 34 35 class Surface; 36 class IGraphicBufferProducer; 37 38 enum media_event_type { 39 MEDIA_NOP = 0, // interface test message 40 MEDIA_PREPARED = 1, 41 MEDIA_PLAYBACK_COMPLETE = 2, 42 MEDIA_BUFFERING_UPDATE = 3, 43 MEDIA_SEEK_COMPLETE = 4, 44 MEDIA_SET_VIDEO_SIZE = 5, 45 MEDIA_STARTED = 6, 46 MEDIA_PAUSED = 7, 47 MEDIA_STOPPED = 8, 48 MEDIA_SKIPPED = 9, 49 MEDIA_TIMED_TEXT = 99, 50 MEDIA_ERROR = 100, 51 MEDIA_INFO = 200, 52 MEDIA_SUBTITLE_DATA = 201, 53 }; 54 55 // Generic error codes for the media player framework. Errors are fatal, the 56 // playback must abort. 57 // 58 // Errors are communicated back to the client using the 59 // MediaPlayerListener::notify method defined below. 60 // In this situation, 'notify' is invoked with the following: 61 // 'msg' is set to MEDIA_ERROR. 62 // 'ext1' should be a value from the enum media_error_type. 63 // 'ext2' contains an implementation dependant error code to provide 64 // more details. Should default to 0 when not used. 65 // 66 // The codes are distributed as follow: 67 // 0xx: Reserved 68 // 1xx: Android Player errors. Something went wrong inside the MediaPlayer. 69 // 2xx: Media errors (e.g Codec not supported). There is a problem with the 70 // media itself. 71 // 3xx: Runtime errors. Some extraordinary condition arose making the playback 72 // impossible. 73 // 74 enum media_error_type { 75 // 0xx 76 MEDIA_ERROR_UNKNOWN = 1, 77 // 1xx 78 MEDIA_ERROR_SERVER_DIED = 100, 79 // 2xx 80 MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200, 81 // 3xx 82 }; 83 84 85 // Info and warning codes for the media player framework. These are non fatal, 86 // the playback is going on but there might be some user visible issues. 87 // 88 // Info and warning messages are communicated back to the client using the 89 // MediaPlayerListener::notify method defined below. In this situation, 90 // 'notify' is invoked with the following: 91 // 'msg' is set to MEDIA_INFO. 92 // 'ext1' should be a value from the enum media_info_type. 93 // 'ext2' contains an implementation dependant info code to provide 94 // more details. Should default to 0 when not used. 95 // 96 // The codes are distributed as follow: 97 // 0xx: Reserved 98 // 7xx: Android Player info/warning (e.g player lagging behind.) 99 // 8xx: Media info/warning (e.g media badly interleaved.) 100 // 101 enum media_info_type { 102 // 0xx 103 MEDIA_INFO_UNKNOWN = 1, 104 // The player was started because it was used as the next player for another 105 // player, which just completed playback 106 MEDIA_INFO_STARTED_AS_NEXT = 2, 107 // The player just pushed the very first video frame for rendering 108 MEDIA_INFO_RENDERING_START = 3, 109 // 7xx 110 // The video is too complex for the decoder: it can't decode frames fast 111 // enough. Possibly only the audio plays fine at this stage. 112 MEDIA_INFO_VIDEO_TRACK_LAGGING = 700, 113 // MediaPlayer is temporarily pausing playback internally in order to 114 // buffer more data. 115 MEDIA_INFO_BUFFERING_START = 701, 116 // MediaPlayer is resuming playback after filling buffers. 117 MEDIA_INFO_BUFFERING_END = 702, 118 // Bandwidth in recent past 119 MEDIA_INFO_NETWORK_BANDWIDTH = 703, 120 121 // 8xx 122 // Bad interleaving means that a media has been improperly interleaved or not 123 // interleaved at all, e.g has all the video samples first then all the audio 124 // ones. Video is playing but a lot of disk seek may be happening. 125 MEDIA_INFO_BAD_INTERLEAVING = 800, 126 // The media is not seekable (e.g live stream). 127 MEDIA_INFO_NOT_SEEKABLE = 801, 128 // New media metadata is available. 129 MEDIA_INFO_METADATA_UPDATE = 802, 130 131 //9xx 132 MEDIA_INFO_TIMED_TEXT_ERROR = 900, 133 }; 134 135 136 137 enum media_player_states { 138 MEDIA_PLAYER_STATE_ERROR = 0, 139 MEDIA_PLAYER_IDLE = 1 << 0, 140 MEDIA_PLAYER_INITIALIZED = 1 << 1, 141 MEDIA_PLAYER_PREPARING = 1 << 2, 142 MEDIA_PLAYER_PREPARED = 1 << 3, 143 MEDIA_PLAYER_STARTED = 1 << 4, 144 MEDIA_PLAYER_PAUSED = 1 << 5, 145 MEDIA_PLAYER_STOPPED = 1 << 6, 146 MEDIA_PLAYER_PLAYBACK_COMPLETE = 1 << 7 147 }; 148 149 // Keep KEY_PARAMETER_* in sync with MediaPlayer.java. 150 // The same enum space is used for both set and get, in case there are future keys that 151 // can be both set and get. But as of now, all parameters are either set only or get only. 152 enum media_parameter_keys { 153 // Streaming/buffering parameters 154 KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100, // set only 155 156 // Return a Parcel containing a single int, which is the channel count of the 157 // audio track, or zero for error (e.g. no audio track) or unknown. 158 KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200, // get only 159 160 // Playback rate expressed in permille (1000 is normal speed), saved as int32_t, with negative 161 // values used for rewinding or reverse playback. 162 KEY_PARAMETER_PLAYBACK_RATE_PERMILLE = 1300, // set only 163 164 // Set a Parcel containing the value of a parcelled Java AudioAttribute instance 165 KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400 // set only 166 }; 167 168 // Keep INVOKE_ID_* in sync with MediaPlayer.java. 169 enum media_player_invoke_ids { 170 INVOKE_ID_GET_TRACK_INFO = 1, 171 INVOKE_ID_ADD_EXTERNAL_SOURCE = 2, 172 INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3, 173 INVOKE_ID_SELECT_TRACK = 4, 174 INVOKE_ID_UNSELECT_TRACK = 5, 175 INVOKE_ID_SET_VIDEO_SCALING_MODE = 6, 176 INVOKE_ID_GET_SELECTED_TRACK = 7 177 }; 178 179 // Keep MEDIA_TRACK_TYPE_* in sync with MediaPlayer.java. 180 enum media_track_type { 181 MEDIA_TRACK_TYPE_UNKNOWN = 0, 182 MEDIA_TRACK_TYPE_VIDEO = 1, 183 MEDIA_TRACK_TYPE_AUDIO = 2, 184 MEDIA_TRACK_TYPE_TIMEDTEXT = 3, 185 MEDIA_TRACK_TYPE_SUBTITLE = 4, 186 }; 187 188 // ---------------------------------------------------------------------------- 189 // ref-counted object for callbacks 190 class MediaPlayerListener: virtual public RefBase 191 { 192 public: 193 virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0; 194 }; 195 196 struct IMediaHTTPService; 197 198 class MediaPlayer : public BnMediaPlayerClient, 199 public virtual IMediaDeathNotifier 200 { 201 public: 202 MediaPlayer(); 203 ~MediaPlayer(); 204 void died(); 205 void disconnect(); 206 207 status_t setDataSource( 208 const sp<IMediaHTTPService> &httpService, 209 const char *url, 210 const KeyedVector<String8, String8> *headers); 211 212 status_t setDataSource(int fd, int64_t offset, int64_t length); 213 status_t setDataSource(const sp<IStreamSource> &source); 214 status_t setVideoSurfaceTexture( 215 const sp<IGraphicBufferProducer>& bufferProducer); 216 status_t setListener(const sp<MediaPlayerListener>& listener); 217 status_t prepare(); 218 status_t prepareAsync(); 219 status_t start(); 220 status_t stop(); 221 status_t pause(); 222 bool isPlaying(); 223 status_t getVideoWidth(int *w); 224 status_t getVideoHeight(int *h); 225 status_t seekTo(int msec); 226 status_t getCurrentPosition(int *msec); 227 status_t getDuration(int *msec); 228 status_t reset(); 229 status_t setAudioStreamType(audio_stream_type_t type); 230 status_t getAudioStreamType(audio_stream_type_t *type); 231 status_t setLooping(int loop); 232 bool isLooping(); 233 status_t setVolume(float leftVolume, float rightVolume); 234 void notify(int msg, int ext1, int ext2, const Parcel *obj = NULL); 235 static status_t decode( 236 const sp<IMediaHTTPService> &httpService, 237 const char* url, 238 uint32_t *pSampleRate, 239 int* pNumChannels, 240 audio_format_t* pFormat, 241 const sp<IMemoryHeap>& heap, 242 size_t *pSize); 243 static status_t decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, 244 int* pNumChannels, audio_format_t* pFormat, 245 const sp<IMemoryHeap>& heap, size_t *pSize); 246 status_t invoke(const Parcel& request, Parcel *reply); 247 status_t setMetadataFilter(const Parcel& filter); 248 status_t getMetadata(bool update_only, bool apply_filter, Parcel *metadata); 249 status_t setAudioSessionId(int sessionId); 250 int getAudioSessionId(); 251 status_t setAuxEffectSendLevel(float level); 252 status_t attachAuxEffect(int effectId); 253 status_t setParameter(int key, const Parcel& request); 254 status_t getParameter(int key, Parcel* reply); 255 status_t setRetransmitEndpoint(const char* addrString, uint16_t port); 256 status_t setNextMediaPlayer(const sp<MediaPlayer>& player); 257 258 private: 259 void clear_l(); 260 status_t seekTo_l(int msec); 261 status_t prepareAsync_l(); 262 status_t getDuration_l(int *msec); 263 status_t attachNewPlayer(const sp<IMediaPlayer>& player); 264 status_t reset_l(); 265 status_t doSetRetransmitEndpoint(const sp<IMediaPlayer>& player); 266 status_t checkStateForKeySet_l(int key); 267 268 sp<IMediaPlayer> mPlayer; 269 thread_id_t mLockThreadId; 270 Mutex mLock; 271 Mutex mNotifyLock; 272 Condition mSignal; 273 sp<MediaPlayerListener> mListener; 274 void* mCookie; 275 media_player_states mCurrentState; 276 int mCurrentPosition; 277 int mSeekPosition; 278 bool mPrepareSync; 279 status_t mPrepareStatus; 280 audio_stream_type_t mStreamType; 281 Parcel* mAudioAttributesParcel; 282 bool mLoop; 283 float mLeftVolume; 284 float mRightVolume; 285 int mVideoWidth; 286 int mVideoHeight; 287 int mAudioSessionId; 288 float mSendLevel; 289 struct sockaddr_in mRetransmitEndpoint; 290 bool mRetransmitEndpointValid; 291 }; 292 293 }; // namespace android 294 295 #endif // ANDROID_MEDIAPLAYER_H 296
