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 #include <fcntl.h> 23 24 #include <SLES/OpenSLES.h> 25 #include <SLES/OpenSLES_Android.h> 26 27 28 #define MAX_NUMBER_INTERFACES 3 29 30 #define TEST_MUTE 0 31 #define TEST_SOLO 1 32 33 static int testMode; 34 //----------------------------------------------------------------- 35 /* Exits the application if an error is encountered */ 36 #define ExitOnError(x) ExitOnErrorFunc(x,__LINE__) 37 38 void ExitOnErrorFunc( SLresult result , int line) 39 { 40 if (SL_RESULT_SUCCESS != result) { 41 fprintf(stdout, "%u error code encountered at line %d, exiting\n", result, line); 42 exit(EXIT_FAILURE); 43 } 44 } 45 46 47 //----------------------------------------------------------------- 48 49 /* Play an audio path by opening a file descriptor on that path */ 50 void TestPlayPathFromFD( SLObjectItf sl, const char* path, SLAint64 offset, SLAint64 size) 51 { 52 SLresult result; 53 SLEngineItf EngineItf; 54 55 /* Objects this application uses: one player and an ouput mix */ 56 SLObjectItf player, outputMix; 57 58 /* Source of audio data to play */ 59 SLDataSource audioSource; 60 SLDataLocator_AndroidFD locatorFd; 61 SLDataFormat_MIME mime; 62 63 /* Data sinks for the audio player */ 64 SLDataSink audioSink; 65 SLDataLocator_OutputMix locator_outputmix; 66 67 /* Play and PrefetchStatus interfaces for the audio player */ 68 SLPlayItf playItf; 69 SLPrefetchStatusItf prefetchItf; 70 71 SLboolean required[MAX_NUMBER_INTERFACES]; 72 SLInterfaceID iidArray[MAX_NUMBER_INTERFACES]; 73 74 /* Get the SL Engine Interface which is implicit */ 75 result = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf); 76 ExitOnError(result); 77 78 /* Initialize arrays required[] and iidArray[] */ 79 for (int i=0 ; i < MAX_NUMBER_INTERFACES ; i++) { 80 required[i] = SL_BOOLEAN_FALSE; 81 iidArray[i] = SL_IID_NULL; 82 } 83 84 /* ------------------------------------------------------ */ 85 /* Configuration of the output mix */ 86 87 /* Create Output Mix object to be used by the player */ 88 result = (*EngineItf)->CreateOutputMix(EngineItf, &outputMix, 0, iidArray, required); 89 ExitOnError(result); 90 91 /* Realize the Output Mix object in synchronous mode */ 92 result = (*outputMix)->Realize(outputMix, SL_BOOLEAN_FALSE); 93 ExitOnError(result); 94 95 /* Setup the data sink structure */ 96 locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX; 97 locator_outputmix.outputMix = outputMix; 98 audioSink.pLocator = (void*)&locator_outputmix; 99 audioSink.pFormat = NULL; 100 101 /* ------------------------------------------------------ */ 102 /* Configuration of the player */ 103 104 /* Set arrays required[] and iidArray[] for SLPrefetchStatusItf interfaces */ 105 /* (SLPlayItf is implicit) */ 106 required[0] = SL_BOOLEAN_TRUE; 107 iidArray[0] = SL_IID_PREFETCHSTATUS; 108 109 /* Setup the data source structure for the URI */ 110 locatorFd.locatorType = SL_DATALOCATOR_ANDROIDFD; 111 int fd = open(path, O_RDONLY); 112 if (fd == -1) { 113 perror(path); 114 exit(EXIT_FAILURE); 115 } 116 locatorFd.fd = (SLint32) fd; 117 locatorFd.length = size; 118 locatorFd.offset = offset; 119 120 mime.formatType = SL_DATAFORMAT_MIME; 121 /* this is how ignored mime information is specified, according to OpenSL ES spec 122 * in 9.1.6 SLDataFormat_MIME and 8.23 SLMetadataTraversalItf GetChildInfo */ 123 mime.mimeType = (SLchar*)NULL; 124 mime.containerType = SL_CONTAINERTYPE_UNSPECIFIED; 125 126 audioSource.pFormat = (void*)&mime; 127 audioSource.pLocator = (void*)&locatorFd; 128 129 /* Create the audio player */ 130 result = (*EngineItf)->CreateAudioPlayer(EngineItf, &player, &audioSource, &audioSink, 1, 131 iidArray, required); 132 ExitOnError(result); 133 134 /* Realize the player in synchronous mode. */ 135 result = (*player)->Realize(player, SL_BOOLEAN_FALSE); ExitOnError(result); 136 fprintf(stdout, "URI example: after Realize\n"); 137 138 /* Get the SLPlayItf, SLPrefetchStatusItf and SLAndroidStreamTypeItf interfaces for the player*/ 139 result = (*player)->GetInterface(player, SL_IID_PLAY, (void*)&playItf); 140 ExitOnError(result); 141 142 result = (*player)->GetInterface(player, SL_IID_PREFETCHSTATUS, (void*)&prefetchItf); 143 ExitOnError(result); 144 145 fprintf(stdout, "Player configured\n"); 146 147 /* ------------------------------------------------------ */ 148 /* Playback and test */ 149 150 /* Start the data prefetching by setting the player to the paused state */ 151 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PAUSED ); 152 ExitOnError(result); 153 154 /* Wait until there's data to play */ 155 SLuint32 prefetchStatus = SL_PREFETCHSTATUS_UNDERFLOW; 156 while (prefetchStatus != SL_PREFETCHSTATUS_SUFFICIENTDATA) { 157 usleep(100 * 1000); 158 (*prefetchItf)->GetPrefetchStatus(prefetchItf, &prefetchStatus); 159 ExitOnError(result); 160 } 161 162 /* Get duration */ 163 SLmillisecond durationInMsec = SL_TIME_UNKNOWN; 164 result = (*playItf)->GetDuration(playItf, &durationInMsec); 165 ExitOnError(result); 166 if (durationInMsec == SL_TIME_UNKNOWN) { 167 durationInMsec = 5000; 168 } 169 170 /* Start playback */ 171 result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PLAYING ); 172 ExitOnError(result); 173 174 usleep(durationInMsec * 1000); 175 176 /* Make sure player is stopped */ 177 fprintf(stdout, "Stopping playback\n"); 178 result = (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_STOPPED); 179 ExitOnError(result); 180 181 /* Destroy the player */ 182 (*player)->Destroy(player); 183 184 /* Destroy Output Mix object */ 185 (*outputMix)->Destroy(outputMix); 186 187 close(fd); 188 } 189 190 //----------------------------------------------------------------- 191 int main(int argc, char* const argv[]) 192 { 193 SLresult result; 194 SLObjectItf sl; 195 196 fprintf(stdout, "OpenSL ES test %s: exercises SLPlayItf ", argv[0]); 197 fprintf(stdout, "and AudioPlayer with SLDataLocator_AndroidFD source / OutputMix sink\n"); 198 fprintf(stdout, "Plays the sound file designated by the given path, "); 199 fprintf(stdout, "starting at the specified offset, and using the specified length.\n"); 200 fprintf(stdout, "Omit the length of the file for it to be computed by the system.\n"); 201 202 if (argc < 3) { 203 fprintf(stdout, "Usage: \t%s path offsetInBytes [sizeInBytes]\n", argv[0]); 204 fprintf(stdout, "Example: \"%s /sdcard/my.mp3 0 344460\" \n", argv[0]); 205 exit(EXIT_FAILURE); 206 } 207 208 SLEngineOption EngineOption[] = { 209 {(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE} 210 }; 211 212 result = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL); 213 ExitOnError(result); 214 215 /* Realizing the SL Engine in synchronous mode. */ 216 result = (*sl)->Realize(sl, SL_BOOLEAN_FALSE); 217 ExitOnError(result); 218 219 if (argc == 3) { 220 fprintf(stdout, "no file size given, using SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE\n"); 221 TestPlayPathFromFD(sl, argv[1], (SLAint64)atoi(argv[2]), 222 SL_DATALOCATOR_ANDROIDFD_USE_FILE_SIZE); 223 } else { 224 TestPlayPathFromFD(sl, argv[1], (SLAint64)atoi(argv[2]), (SLAint64)atoi(argv[3])); 225 } 226 227 /* Shutdown OpenSL ES */ 228 (*sl)->Destroy(sl); 229 230 return EXIT_SUCCESS; 231 } 232
