1 /* 2 * Copyright (C) 2010 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 18 /** 19 * Used to define the mapping from an OpenSL ES or OpenMAX AL object to an Android 20 * media framework object 21 */ 22 enum AndroidObjectType { 23 INVALID_TYPE =-1, 24 // audio player, playing from a URI or FD data source 25 AUDIOPLAYER_FROM_URIFD = 0, 26 // audio player, playing PCM buffers in a buffer queue data source 27 AUDIOPLAYER_FROM_PCM_BUFFERQUEUE = 1, 28 // audio player, playing transport stream packets in an Android buffer queue data source 29 AUDIOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE = 2, 30 // audio player, decoding from a URI or FD data source to a buffer queue data sink in PCM format 31 AUDIOPLAYER_FROM_URIFD_TO_PCM_BUFFERQUEUE = 3, 32 // audio video player, playing transport stream packets in an Android buffer queue data source 33 AUDIOVIDEOPLAYER_FROM_TS_ANDROIDBUFFERQUEUE = 4, 34 // audio video player, playing from a URI or FD data source 35 AUDIOVIDEOPLAYER_FROM_URIFD = 5, 36 // audio recorder, recording from an input device data source, streamed into a 37 // PCM buffer queue data sink 38 AUDIORECORDER_FROM_MIC_TO_PCM_BUFFERQUEUE = 6, 39 // audio player, decoding from an Android buffer queue with ADTS data, 40 // to a buffer queue data sink in PCM format 41 AUDIOPLAYER_FROM_ADTS_ABQ_TO_PCM_BUFFERQUEUE = 7, 42 NUM_AUDIOPLAYER_MAP_TYPES 43 }; 44 45 46 /** 47 * Used to define the states of the OpenSL ES / OpenMAX AL object initialization and preparation 48 * with regards to the Android-side of the data, in particular as affected by the play state. 49 */ 50 enum AndroidObjectState { 51 ANDROID_UNINITIALIZED = -1, // never called SetPlayState(PAUSED or PLAYING) 52 ANDROID_PREPARING, // currently preparing due to first SetPlayState(PAUSED or PLAYING) 53 ANDROID_READY, // preparation has completed, and will not be attempted again 54 // NUM_ANDROID_STATES // unused 55 }; 56 57 58 #define ANDROID_DEFAULT_OUTPUT_STREAM_TYPE AUDIO_STREAM_MUSIC 59 60 #define PLAYER_FAILURE ((int32_t) android::UNKNOWN_ERROR) 61 #define PLAYER_SUCCESS ((int32_t) android::NO_ERROR) 62 63 #define PLAYER_FD_FIND_FILE_SIZE ((int64_t)0xFFFFFFFFFFFFFFFFll) 64 65 #define MPEG2_TS_BLOCK_SIZE 188 66 67 typedef struct AudioPlayback_Parameters_struct { 68 int streamType; 69 int sessionId; 70 } AudioPlayback_Parameters; 71 72 /** 73 * Structure to maintain the set of audio levels about a player 74 */ 75 typedef struct AndroidAudioLevels_t { 76 /** 77 * Send level to aux effect, there's a single aux bus, so there's a single level 78 */ 79 // FIXME not used yet, will be used when supporting effects in OpenMAX AL 80 //SLmillibel mAuxSendLevel; 81 /** 82 * Attenuation factor derived from direct level 83 */ 84 // FIXME not used yet, will be used when supporting effects in OpenMAX AL 85 //float mAmplFromDirectLevel; 86 /** 87 * Android Left/Right volume 88 * The final volume of an Android AudioTrack or MediaPlayer is a stereo amplification 89 * (or attenuation) represented as a float from 0.0f to 1.0f 90 */ 91 float mFinalVolume[STEREO_CHANNELS]; 92 } AndroidAudioLevels; 93 94 95 /** 96 * Event notification callback from Android to SL ES framework 97 */ 98 typedef void (*notif_cbf_t)(int event, int data1, int data2, void* notifUser); 99 100 /** 101 * Audio data push callback from Android objects to SL ES framework 102 */ 103 typedef size_t (*data_push_cbf_t)(const uint8_t *data, size_t size, CAudioPlayer* ap); 104 105 106 /** 107 * Events sent to mNotifyClient during prepare, prefetch, and playback 108 * used in APlayer::notify() and AMessage::findxxx() 109 */ 110 #define PLAYEREVENT_PREPARED "prep" 111 #define PLAYEREVENT_PREFETCHSTATUSCHANGE "prsc" 112 #define PLAYEREVENT_PREFETCHFILLLEVELUPDATE "pflu" 113 #define PLAYEREVENT_ENDOFSTREAM "eos" 114 #define PLAYEREVENT_VIDEO_SIZE_UPDATE "vsiz" 115 #define PLAYEREVENT_CHANNEL_COUNT "ccnt" // channel count is now known 116 #define PLAYEREVENT_PLAY "play" // SL_PLAYEVENT_* 117 #define PLAYEREVENT_ERRORAFTERPREPARE "easp" // error after successful prepare 118 119 120 /** 121 * Time value when time is unknown. Used for instance for duration or playback position 122 */ 123 #define ANDROID_UNKNOWN_TIME -1 124 125 /** 126 * Event mask for MPEG-2 TS events associated with TS data 127 */ 128 #define ANDROID_MP2TSEVENT_NONE ((SLuint32) 0x0) 129 // buffer is at End Of Stream 130 #define ANDROID_MP2TSEVENT_EOS ((SLuint32) 0x1) 131 // buffer marks a discontinuity with previous TS data, resume display as soon as possible 132 #define ANDROID_MP2TSEVENT_DISCONTINUITY ((SLuint32) 0x1 << 1) 133 // buffer marks a discontinuity with previous TS data, resume display upon reaching the 134 // associated presentation time stamp 135 #define ANDROID_MP2TSEVENT_DISCON_NEWPTS ((SLuint32) 0x1 << 2) 136 // buffer marks a format change with previous TS data, resume display as soon as possible 137 #define ANDROID_MP2TSEVENT_FORMAT_CHANGE_FULL ((SLuint32) 0x1 << 3) 138 #define ANDROID_MP2TSEVENT_FORMAT_CHANGE_VIDEO ((SLuint32) 0x1 << 4) 139 140 /** 141 * Event mask for AAC ADTS events associated with ADTS data 142 */ 143 #define ANDROID_ADTSEVENT_NONE ANDROID_MP2TSEVENT_NONE 144 // buffer is at End Of Stream 145 #define ANDROID_ADTSEVENT_EOS ANDROID_MP2TSEVENT_EOS 146 147 /** 148 * Types of buffers stored in Android Buffer Queues, see IAndroidBufferQueue.mBufferType 149 */ 150 enum AndroidBufferType_type { 151 kAndroidBufferTypeInvalid = ((SLuint16) 0x0), 152 kAndroidBufferTypeMpeg2Ts = ((SLuint16) 0x1), 153 kAndroidBufferTypeAacadts = ((SLuint16) 0x2), 154 }; 155 156 /** 157 * MIME types required for data in Android Buffer Queues 158 */ 159 // The preferred MIME types for new applications are in ../../include/*/OpenMAXAL_Android.h 160 // The legacy MIME type used elsewhere in the Android framework for AAC ADTS is below: 161 #define ANDROID_MIME_AACADTS_ANDROID_FRAMEWORK "audio/aac-adts" 162 163 /** 164 * Notification thresholds relative to content duration in the cache 165 */ 166 #define DURATION_CACHED_HIGH_MS 30000 // 30s 167 #define DURATION_CACHED_MED_MS 10000 // 10s 168 #define DURATION_CACHED_LOW_MS 2000 // 2s 169 170 171 namespace android { 172 173 /** 174 * Prefetch cache status 175 */ 176 enum CacheStatus_t { 177 kStatusUnknown = -1, 178 kStatusEmpty = 0, 179 kStatusLow, 180 kStatusIntermediate, 181 kStatusEnough, 182 kStatusHigh 183 }; 184 185 enum { 186 kDataLocatorNone = 'none', 187 kDataLocatorUri = 'uri', 188 kDataLocatorFd = 'fd', 189 }; 190 191 struct FdInfo { 192 int fd; 193 int64_t offset; 194 int64_t length; 195 bool mCloseAfterUse; // whether to close fd after last reference to fd 196 }; 197 198 // TODO currently used by SfPlayer, to replace by DataLocator2 199 union DataLocator { 200 char* uri; 201 FdInfo fdi; 202 }; 203 204 union DataLocator2 { 205 const char* uriRef; 206 FdInfo fdi; 207 }; 208 209 } // namespace android 210
