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 #include <stdlib.h> 18 #include <stdio.h> 19 #include <string.h> 20 #include <unistd.h> 21 #include <sys/time.h> 22 23 #include <SLES/OpenSLES.h> 24 25 26 #define MAX_NUMBER_INTERFACES 2 27 28 #define TEST_MUTE 0 29 #define TEST_SOLO 1 30 31 static int testMode; 32 //----------------------------------------------------------------- 33 /* Exits the application if an error is encountered */ 34 #define ExitOnError(x) ExitOnErrorFunc(x,__LINE__) 35 36 void ExitOnErrorFunc( SLresult result , int line) 37 { 38 if (SL_RESULT_SUCCESS != result) { 39 fprintf(stdout, "%u error code encountered at line %d, exiting\n", result, line); 40 exit(EXIT_FAILURE); 41 } 42 } 43 44 45 //----------------------------------------------------------------- 46 47 /* Play an audio URIs, play, pause, stop */ 48 void TestPlayUri( SLObjectItf sl, const char* path) 49 { 50 SLresult result; 51 SLEngineItf EngineItf; 52 53 /* Objects this application uses: one player and an ouput mix */ 54 SLObjectItf player, outputMix; 55 56 /* Source of audio data to play */ 57 SLDataSource audioSource; 58 SLDataLocator_URI uri; 59 SLDataFormat_MIME mime; 60 61 /* Data sinks for the audio player */ 62 SLDataSink audioSink; 63 SLDataLocator_OutputMix locator_outputmix; 64 65 /* Play, Volume and PrefetchStatus interfaces for the audio player */ 66 SLPlayItf playItf; 67 SLMuteSoloItf muteSoloItf; 68 SLPrefetchStatusItf prefetchItf; 69 70 SLboolean required[MAX_NUMBER_INTERFACES]; 71 SLInterfaceID iidArray[MAX_NUMBER_INTERFACES]; 72 73 /* Get the SL Engine Interface which is implicit */ 74 result = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf); 75 ExitOnError(result); 76 77 /* Initialize arrays required[] and iidArray[] */ 78 for (int i=0 ; i < MAX_NUMBER_INTERFACES ; i++) { 79 required[i] = SL_BOOLEAN_FALSE; 80 iidArray[i] = SL_IID_NULL; 81 } 82 83 /* ------------------------------------------------------ */ 84 /* Configuration of the output mix */ 85 86 /* Create Output Mix object to be used by the player */ 87 result = (*EngineItf)->CreateOutputMix(EngineItf, &outputMix, 0, iidArray, required); 88 ExitOnError(result); 89 90 /* Realize the Output Mix object in synchronous mode */ 91 result = (*outputMix)->Realize(outputMix, SL_BOOLEAN_FALSE); 92 ExitOnError(result); 93 94 /* Setup the data sink structure */ 95 locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX; 96 locator_outputmix.outputMix = outputMix; 97 audioSink.pLocator = (void*)&locator_outputmix; 98 audioSink.pFormat = NULL; 99 100 /* ------------------------------------------------------ */ 101 /* Configuration of the player */ 102 103 /* Set arrays required[] and iidArray[] for SLMuteSoloItf and SLPrefetchStatusItf interfaces */ 104 /* (SLPlayItf is implicit) */ 105 required[0] = SL_BOOLEAN_TRUE; 106 iidArray[0] = SL_IID_MUTESOLO; 107 required[1] = SL_BOOLEAN_TRUE; 108 iidArray[1] = SL_IID_PREFETCHSTATUS; 109 110 /* Setup the data source structure for the URI */ 111 uri.locatorType = SL_DATALOCATOR_URI; 112 uri.URI = (SLchar*) path; 113 mime.formatType = SL_DATAFORMAT_MIME; 114 /* this is how ignored mime information is specified, according to OpenSL ES spec 115 * in 9.1.6 SLDataFormat_MIME and 8.23 SLMetadataTraversalItf GetChildInfo */ 116 mime.mimeType = (SLchar*)NULL; 117 mime.containerType = SL_CONTAINERTYPE_UNSPECIFIED; 118 119 audioSource.pFormat = (void*)&mime; 120 audioSource.pLocator = (void*)&uri; 121 122 /* Create the audio player */ 123 result = (*EngineItf)->CreateAudioPlayer(EngineItf, &player, &audioSource, &audioSink, 124 MAX_NUMBER_INTERFACES, iidArray, required); 125 ExitOnError(result); 126 127 /* Realize the player in synchronous mode. */ 128 result = (*player)->Realize(player, SL_BOOLEAN_FALSE); ExitOnError(result); 129 fprintf(stdout, "URI example: after Realize\n"); 130 131 /* Get the SLPlayItf, SLPrefetchStatusItf and SLMuteSoloItf interfaces for the player */ 132 result = (*player)->GetInterface(player, SL_IID_PLAY, (void*)&playItf); 133 ExitOnError(result); 134 135 result = (*player)->GetInterface(player, SL_IID_PREFETCHSTATUS, (void*)&prefetchItf); 136 ExitOnError(result); 137 138 result = (*player)->GetInterface(player, SL_IID_MUTESOLO, (void*)&muteSoloItf); 139 ExitOnError(result); 140 141 142 fprintf(stdout, "Player configured\n"); 143 144 /* ------------------------------------------------------ */ 145 /* Playback and test */ 146 147 /* Start the data prefetching by setting the player to the paused state */ 148 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PAUSED ); 149 ExitOnError(result); 150 151 /* Wait until there's data to play */ 152 SLuint32 prefetchStatus = SL_PREFETCHSTATUS_UNDERFLOW; 153 while (prefetchStatus != SL_PREFETCHSTATUS_SUFFICIENTDATA) { 154 usleep(100 * 1000); 155 (*prefetchItf)->GetPrefetchStatus(prefetchItf, &prefetchStatus); 156 } 157 158 159 /* Testing play states */ 160 /* let it play for 2s */ 161 fprintf(stdout, "----- Playing\n"); 162 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PLAYING ); 163 ExitOnError(result); 164 usleep(2 * 1000 * 1000); 165 166 /* pause for 1s*/ 167 fprintf(stdout, "----- Pausing (1s)\n"); 168 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PAUSED ); 169 ExitOnError(result); 170 usleep(2 * 1000 * 1000); 171 172 /* resume */ 173 fprintf(stdout, "----- Playing (2s, should have resumed where it paused)\n"); 174 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PLAYING ); 175 ExitOnError(result); 176 usleep(2 * 1000 * 1000); 177 178 /* stop */ 179 fprintf(stdout, "----- Stopping\n"); 180 result = (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_STOPPED); 181 ExitOnError(result); 182 183 /* play for 2s */ 184 fprintf(stdout, "----- Playing (2s, should have started from the beginning\n"); 185 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PLAYING ); 186 ExitOnError(result); 187 usleep(2 * 1000 * 1000); 188 189 /* stop */ 190 fprintf(stdout, "----- Stopping\n"); 191 result = (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_STOPPED); 192 ExitOnError(result); 193 194 destroyKillKill: 195 196 /* Destroy the players */ 197 (*player)->Destroy(player); 198 199 /* Destroy Output Mix object */ 200 (*outputMix)->Destroy(outputMix); 201 } 202 203 //----------------------------------------------------------------- 204 int main(int argc, char* const argv[]) 205 { 206 SLresult result; 207 SLObjectItf sl; 208 209 fprintf(stdout, "OpenSL ES test %s: exercises SLPlayItf, SLVolumeItf, SLMuteSoloItf\n", 210 argv[0]); 211 fprintf(stdout, "and AudioPlayer with SLDataLocator_URI source / OutputMix sink\n"); 212 fprintf(stdout, "Plays a sound and alternates the muting of the channels (for 5s).\n"); 213 fprintf(stdout, " and then alternates the solo\'ing of the channels (for 5s).\n"); 214 fprintf(stdout, "Stops after 10s\n"); 215 216 if (argc == 1) { 217 fprintf(stdout, "Usage: \t%s url\n", argv[0]); 218 fprintf(stdout, "Example: \"%s /sdcard/my.mp3\"\n", argv[0]); 219 exit(EXIT_FAILURE); 220 } 221 222 SLEngineOption EngineOption[] = { 223 {(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE} 224 }; 225 226 result = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL); 227 ExitOnError(result); 228 229 /* Realizing the SL Engine in synchronous mode. */ 230 result = (*sl)->Realize(sl, SL_BOOLEAN_FALSE); 231 ExitOnError(result); 232 233 if (argc > 1) { 234 TestPlayUri(sl, argv[1]); 235 } 236 237 /* Shutdown OpenSL ES */ 238 (*sl)->Destroy(sl); 239 240 return EXIT_SUCCESS; 241 } 242
