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 /* Audio Record Test
18
19 First run the program from shell:
20 % adb shell slesTest_recBuffQueue /sdcard/myrec.wav
21
22 These use adb on host to retrive the file:
23 % adb pull /sdcard/myrec.wav
24
25 */
26
27
28 #include <stdlib.h>
29 #include <stdio.h>
30 #include <string.h>
31 #include <unistd.h>
32 #include <sys/time.h>
33 #include <fcntl.h>
34 #include <system/audio.h>
35 #include <audio_utils/primitives.h>
36 #include <audio_utils/sndfile.h>
37
38 #include <SLES/OpenSLES.h>
39 #include <SLES/OpenSLES_Android.h>
40
41 audio_format_t transferFormat = AUDIO_FORMAT_DEFAULT;
42 uint32_t sampleRate = 48000;
43 int channelCount = 1;
44 bool useIndexChannelMask = false;
45 size_t frameSize;
46 uint32_t performanceMode = SL_ANDROID_PERFORMANCE_LATENCY;
47 bool aec = false;
48 bool agc = false;
49 bool ns = false;
50
51 /* Preset number to use for recording */
52 SLuint32 presetValue = SL_ANDROID_RECORDING_PRESET_NONE;
53
54 /* Explicitly requesting SL_IID_ANDROIDSIMPLEBUFFERQUEUE and SL_IID_ANDROIDCONFIGURATION
55 * on the AudioRecorder object */
56 #define NUM_EXPLICIT_INTERFACES_FOR_RECORDER 2
57
58 /* Size of the recording buffer queue */
59 #define NB_BUFFERS_IN_QUEUE 1
60 /* Size of each buffer in the queue */
61 #define BUFFER_SIZE_IN_BYTES 2048
62
63 /* Local storage for Audio data */
64 int8_t pcmData[NB_BUFFERS_IN_QUEUE * BUFFER_SIZE_IN_BYTES];
65
66 /* destination for recorded data */
67 SNDFILE *sndfile;
68
69 //-----------------------------------------------------------------
70 /* Exits the application if an error is encountered */
71 #define ExitOnError(x) ExitOnErrorFunc(x,__LINE__)
72
ExitOnErrorFunc(SLresult result,int line)73 void ExitOnErrorFunc( SLresult result , int line)
74 {
75 if (SL_RESULT_SUCCESS != result) {
76 fprintf(stderr, "%u error code encountered at line %d, exiting\n", result, line);
77 exit(EXIT_FAILURE);
78 }
79 }
80
81 //-----------------------------------------------------------------
82 /* Structure for passing information to callback function */
83 typedef struct CallbackCntxt_ {
84 SLPlayItf playItf;
85 SLuint32 size;
86 SLint8* pDataBase; // Base address of local audio data storage
87 SLint8* pData; // Current address of local audio data storage
88 } CallbackCntxt;
89
90
91 //-----------------------------------------------------------------
92 /* Callback for recording buffer queue events */
RecCallback(SLRecordItf caller,void * pContext __unused,SLuint32 event)93 void RecCallback(
94 SLRecordItf caller,
95 void *pContext __unused,
96 SLuint32 event)
97 {
98 if (SL_RECORDEVENT_HEADATNEWPOS & event) {
99 SLmillisecond pMsec = 0;
100 (*caller)->GetPosition(caller, &pMsec);
101 printf("SL_RECORDEVENT_HEADATNEWPOS current position=%ums\n", pMsec);
102 }
103
104 if (SL_RECORDEVENT_HEADATMARKER & event) {
105 SLmillisecond pMsec = 0;
106 (*caller)->GetPosition(caller, &pMsec);
107 printf("SL_RECORDEVENT_HEADATMARKER current position=%ums\n", pMsec);
108 }
109 }
110
111 //-----------------------------------------------------------------
112 /* Callback for recording buffer queue events */
RecBufferQueueCallback(SLAndroidSimpleBufferQueueItf queueItf,void * pContext)113 void RecBufferQueueCallback(
114 SLAndroidSimpleBufferQueueItf queueItf,
115 void *pContext)
116 {
117 //printf("RecBufferQueueCallback called\n");
118
119 CallbackCntxt *pCntxt = (CallbackCntxt*)pContext;
120
121 /* Save the recorded data */
122 sf_count_t frameCount = BUFFER_SIZE_IN_BYTES / frameSize;
123 switch (transferFormat) {
124 case AUDIO_FORMAT_PCM_8_BIT: {
125 short temp[BUFFER_SIZE_IN_BYTES];
126 memcpy_to_i16_from_u8(temp, (const unsigned char *) pCntxt->pDataBase, BUFFER_SIZE_IN_BYTES);
127 (void) sf_writef_short(sndfile, (const short *) temp, frameCount);
128 } break;
129 case AUDIO_FORMAT_PCM_16_BIT:
130 (void) sf_writef_short(sndfile, (const short *) pCntxt->pDataBase, frameCount);
131 break;
132 case AUDIO_FORMAT_PCM_32_BIT:
133 (void) sf_writef_int(sndfile, (const int *) pCntxt->pDataBase, frameCount);
134 break;
135 case AUDIO_FORMAT_PCM_FLOAT:
136 (void) sf_writef_float(sndfile, (const float *) pCntxt->pDataBase, frameCount);
137 break;
138 default:
139 fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
140 exit(EXIT_FAILURE);
141 }
142
143 /* Increase data pointer by buffer size */
144 pCntxt->pData += BUFFER_SIZE_IN_BYTES;
145
146 if (pCntxt->pData >= pCntxt->pDataBase + (NB_BUFFERS_IN_QUEUE * BUFFER_SIZE_IN_BYTES)) {
147 pCntxt->pData = pCntxt->pDataBase;
148 }
149
150 ExitOnError( (*queueItf)->Enqueue(queueItf, pCntxt->pDataBase, BUFFER_SIZE_IN_BYTES) );
151
152 SLAndroidSimpleBufferQueueState recQueueState;
153 ExitOnError( (*queueItf)->GetState(queueItf, &recQueueState) );
154
155 /*fprintf(stderr, "\tRecBufferQueueCallback now has pCntxt->pData=%p queue: "
156 "count=%u playIndex=%u\n",
157 pCntxt->pData, recQueueState.count, recQueueState.index);*/
158 //printf("RecBufferQueueCallback returned\n");
159 }
160
161 //-----------------------------------------------------------------
162
163 /* Record to an audio path by opening a file descriptor on that path */
TestRecToBuffQueue(SLObjectItf sl,const char * path,SLAint64 durationInSeconds)164 void TestRecToBuffQueue( SLObjectItf sl, const char* path, SLAint64 durationInSeconds)
165 {
166 SF_INFO info;
167 info.frames = 0;
168 info.samplerate = sampleRate;
169 info.channels = channelCount;
170 switch (transferFormat) {
171 case AUDIO_FORMAT_PCM_8_BIT:
172 info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_U8;
173 break;
174 case AUDIO_FORMAT_PCM_16_BIT:
175 info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
176 break;
177 case AUDIO_FORMAT_PCM_32_BIT:
178 info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_32;
179 break;
180 case AUDIO_FORMAT_PCM_FLOAT:
181 info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
182 break;
183 default:
184 fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
185 exit(EXIT_FAILURE);
186 }
187 sndfile = sf_open(path, SFM_WRITE, &info);
188 if (sndfile == NULL) {
189 ExitOnError(SL_RESULT_RESOURCE_ERROR);
190 }
191
192 SLresult result;
193 SLEngineItf EngineItf;
194
195 /* Objects this application uses: one audio recorder */
196 SLObjectItf recorder;
197
198 /* Interfaces for the audio recorder */
199 SLAndroidSimpleBufferQueueItf recBuffQueueItf;
200 SLRecordItf recordItf;
201 SLAndroidConfigurationItf configItf;
202
203 /* Source of audio data for the recording */
204 SLDataSource recSource;
205 SLDataLocator_IODevice ioDevice;
206
207 /* Data sink for recorded audio */
208 SLDataSink recDest;
209 SLDataLocator_AndroidSimpleBufferQueue recBuffQueue;
210 /* As mentioned in the Android extension API documentation this is identical to
211 * OpenSL ES 1.1 SLDataFormat_PCM_EX, and can be used for an instance of SLDataFormat_PCM.
212 */
213 SLAndroidDataFormat_PCM_EX pcm;
214
215 int numInterfaces = NUM_EXPLICIT_INTERFACES_FOR_RECORDER;
216 if (aec) numInterfaces++;
217 if (agc) numInterfaces++;
218 if (ns) numInterfaces++;
219
220 SLboolean required[numInterfaces];
221 SLInterfaceID iidArray[numInterfaces];
222
223 /* Get the SL Engine Interface which is implicit */
224 result = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf);
225 ExitOnError(result);
226
227 /* Initialize arrays required[] and iidArray[] */
228 for (int i=0 ; i < numInterfaces ; i++) {
229 required[i] = SL_BOOLEAN_FALSE;
230 iidArray[i] = SL_IID_NULL;
231 }
232
233
234 /* ------------------------------------------------------ */
235 /* Configuration of the recorder */
236
237 /* Request the AndroidSimpleBufferQueue and AndroidConfiguration interfaces */
238 int index = 0;
239 required[index] = SL_BOOLEAN_TRUE;
240 iidArray[index++] = SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
241 required[index] = SL_BOOLEAN_TRUE;
242 iidArray[index++] = SL_IID_ANDROIDCONFIGURATION;
243 if (aec) {
244 iidArray[index++] = SL_IID_ANDROIDACOUSTICECHOCANCELLATION;
245 }
246 if (agc) {
247 iidArray[index++] = SL_IID_ANDROIDAUTOMATICGAINCONTROL;
248 }
249 if (ns) {
250 iidArray[index++] = SL_IID_ANDROIDNOISESUPPRESSION;
251 }
252
253 /* Setup the data source */
254 ioDevice.locatorType = SL_DATALOCATOR_IODEVICE;
255 ioDevice.deviceType = SL_IODEVICE_AUDIOINPUT;
256 ioDevice.deviceID = SL_DEFAULTDEVICEID_AUDIOINPUT;
257 ioDevice.device = NULL;
258 recSource.pLocator = (void *) &ioDevice;
259 recSource.pFormat = NULL;
260
261 /* Setup the data sink */
262 recBuffQueue.locatorType = SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE;
263 recBuffQueue.numBuffers = NB_BUFFERS_IN_QUEUE;
264 /* set up the format of the data in the buffer queue */
265 pcm.formatType = transferFormat == AUDIO_FORMAT_PCM_FLOAT ||
266 transferFormat == AUDIO_FORMAT_PCM_8_BIT ?
267 SL_ANDROID_DATAFORMAT_PCM_EX : SL_DATAFORMAT_PCM;
268 pcm.numChannels = channelCount;
269 pcm.sampleRate = sampleRate * 1000; // milliHz
270 pcm.representation = SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT;
271 switch (transferFormat) {
272 case AUDIO_FORMAT_PCM_16_BIT:
273 pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
274 pcm.containerSize = 16;
275 break;
276 case AUDIO_FORMAT_PCM_32_BIT:
277 pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_32;
278 pcm.containerSize = 32;
279 break;
280 case AUDIO_FORMAT_PCM_8_BIT:
281 pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_8;
282 pcm.containerSize = 8;
283 pcm.representation = SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT;
284 break;
285 case AUDIO_FORMAT_PCM_FLOAT:
286 pcm.bitsPerSample = 32;
287 pcm.containerSize = 32;
288 pcm.representation = SL_ANDROID_PCM_REPRESENTATION_FLOAT;
289 break;
290 default:
291 fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
292 exit(EXIT_FAILURE);
293 }
294 if (useIndexChannelMask) {
295 pcm.channelMask = (1 << channelCount) - 1;
296 } else {
297 switch (channelCount) {
298 case 1:
299 pcm.channelMask = SL_SPEAKER_FRONT_LEFT;
300 break;
301 case 2:
302 pcm.channelMask = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
303 break;
304 default:
305 fprintf(stderr, "Unsupported channel count %d\n", channelCount);
306 exit(EXIT_FAILURE);
307 }
308 }
309 pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
310
311 recDest.pLocator = (void *) &recBuffQueue;
312 recDest.pFormat = (void * ) &pcm;
313
314 /* Create the audio recorder */
315 result = (*EngineItf)->CreateAudioRecorder(EngineItf, &recorder, &recSource, &recDest,
316 numInterfaces, iidArray, required);
317 ExitOnError(result);
318 printf("Recorder created\n");
319
320 /* Get the Android configuration interface which is explicit */
321 result = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDCONFIGURATION, (void*)&configItf);
322 ExitOnError(result);
323
324 /* Use the configuration interface to configure the recorder before it's realized */
325 if (presetValue != SL_ANDROID_RECORDING_PRESET_NONE) {
326 result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_RECORDING_PRESET,
327 &presetValue, sizeof(SLuint32));
328 ExitOnError(result);
329 printf("Recorder configured with preset %u\n", presetValue);
330 } else {
331 printf("Using default record preset\n");
332 }
333
334 if (performanceMode != SL_ANDROID_PERFORMANCE_LATENCY) {
335 result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_PERFORMANCE_MODE,
336 &performanceMode, sizeof(SLuint32));
337 ExitOnError(result);
338 printf("Recorder configured with performance mode %u\n", performanceMode);
339 } else {
340 printf("Using default performance mode\n");
341 }
342
343 SLuint32 presetRetrieved = SL_ANDROID_RECORDING_PRESET_NONE;
344 SLuint32 presetSize = 2*sizeof(SLuint32); // intentionally too big
345 result = (*configItf)->GetConfiguration(configItf, SL_ANDROID_KEY_RECORDING_PRESET,
346 &presetSize, (void*)&presetRetrieved);
347 ExitOnError(result);
348 if (presetValue == SL_ANDROID_RECORDING_PRESET_NONE) {
349 printf("The default record preset appears to be %u\n", presetRetrieved);
350 } else if (presetValue != presetRetrieved) {
351 fprintf(stderr, "Error retrieving recording preset as %u instead of %u\n", presetRetrieved,
352 presetValue);
353 ExitOnError(SL_RESULT_INTERNAL_ERROR);
354 }
355
356 /* Realize the recorder in synchronous mode. */
357 result = (*recorder)->Realize(recorder, SL_BOOLEAN_FALSE);
358 ExitOnError(result);
359 printf("Recorder realized\n");
360
361 /* Check actual performance mode granted*/
362 SLuint32 modeRetrieved = SL_ANDROID_PERFORMANCE_NONE;
363 SLuint32 modeSize = sizeof(SLuint32);
364 result = (*configItf)->GetConfiguration(configItf, SL_ANDROID_KEY_PERFORMANCE_MODE,
365 &modeSize, (void*)&modeRetrieved);
366 ExitOnError(result);
367 printf("Actual performance mode is %u\n", modeRetrieved);
368
369 /* Get the record interface which is implicit */
370 result = (*recorder)->GetInterface(recorder, SL_IID_RECORD, (void*)&recordItf);
371 ExitOnError(result);
372
373 /* Set up the recorder callback to get events during the recording */
374 result = (*recordItf)->SetMarkerPosition(recordItf, 2000);
375 ExitOnError(result);
376 result = (*recordItf)->SetPositionUpdatePeriod(recordItf, 500);
377 ExitOnError(result);
378 result = (*recordItf)->SetCallbackEventsMask(recordItf,
379 SL_RECORDEVENT_HEADATMARKER | SL_RECORDEVENT_HEADATNEWPOS);
380 ExitOnError(result);
381 result = (*recordItf)->RegisterCallback(recordItf, RecCallback, NULL);
382 ExitOnError(result);
383 printf("Recorder callback registered\n");
384
385 /* Enable AEC if requested */
386 if (aec) {
387 SLAndroidAcousticEchoCancellationItf aecItf;
388 result = (*recorder)->GetInterface(
389 recorder, SL_IID_ANDROIDACOUSTICECHOCANCELLATION, (void*)&aecItf);
390 printf("AEC is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
391 if (SL_RESULT_SUCCESS == result) {
392 result = (*aecItf)->SetEnabled(aecItf, true);
393 ExitOnError(result);
394 SLboolean enabled;
395 result = (*aecItf)->IsEnabled(aecItf, &enabled);
396 ExitOnError(result);
397 printf("AEC is %s\n", enabled ? "enabled" : "not enabled");
398 }
399 }
400
401 /* Enable AGC if requested */
402 if (agc) {
403 SLAndroidAutomaticGainControlItf agcItf;
404 result = (*recorder)->GetInterface(
405 recorder, SL_IID_ANDROIDAUTOMATICGAINCONTROL, (void*)&agcItf);
406 printf("AGC is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
407 if (SL_RESULT_SUCCESS == result) {
408 result = (*agcItf)->SetEnabled(agcItf, true);
409 ExitOnError(result);
410 SLboolean enabled;
411 result = (*agcItf)->IsEnabled(agcItf, &enabled);
412 ExitOnError(result);
413 printf("AGC is %s\n", enabled ? "enabled" : "not enabled");
414 }
415 }
416
417 /* Enable NS if requested */
418 if (ns) {
419 SLAndroidNoiseSuppressionItf nsItf;
420 result = (*recorder)->GetInterface(
421 recorder, SL_IID_ANDROIDNOISESUPPRESSION, (void*)&nsItf);
422 printf("NS is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
423 if (SL_RESULT_SUCCESS == result) {
424 result = (*nsItf)->SetEnabled(nsItf, true);
425 ExitOnError(result);
426 SLboolean enabled;
427 result = (*nsItf)->IsEnabled(nsItf, &enabled);
428 ExitOnError(result);
429 printf("NS is %s\n", enabled ? "enabled" : "not enabled");
430 }
431 }
432
433 /* Get the buffer queue interface which was explicitly requested */
434 result = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDSIMPLEBUFFERQUEUE,
435 (void*)&recBuffQueueItf);
436 ExitOnError(result);
437
438 /* ------------------------------------------------------ */
439 /* Initialize the callback and its context for the recording buffer queue */
440 CallbackCntxt cntxt;
441 cntxt.pDataBase = (int8_t*)&pcmData;
442 cntxt.pData = cntxt.pDataBase;
443 cntxt.size = sizeof(pcmData);
444 result = (*recBuffQueueItf)->RegisterCallback(recBuffQueueItf, RecBufferQueueCallback, &cntxt);
445 ExitOnError(result);
446
447 /* Enqueue buffers to map the region of memory allocated to store the recorded data */
448 printf("Enqueueing buffer ");
449 for(int i = 0 ; i < NB_BUFFERS_IN_QUEUE ; i++) {
450 printf("%d ", i);
451 result = (*recBuffQueueItf)->Enqueue(recBuffQueueItf, cntxt.pData, BUFFER_SIZE_IN_BYTES);
452 ExitOnError(result);
453 cntxt.pData += BUFFER_SIZE_IN_BYTES;
454 }
455 printf("\n");
456 cntxt.pData = cntxt.pDataBase;
457
458 /* ------------------------------------------------------ */
459 /* Start recording */
460 result = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_RECORDING);
461 ExitOnError(result);
462 printf("Starting to record\n");
463
464 /* Record for at least a second */
465 if (durationInSeconds < 1) {
466 durationInSeconds = 1;
467 }
468 usleep(durationInSeconds * 1000 * 1000);
469
470 /* ------------------------------------------------------ */
471 /* End of recording */
472
473 /* Stop recording */
474 result = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
475 ExitOnError(result);
476 printf("Stopped recording\n");
477
478 /* Destroy the AudioRecorder object */
479 (*recorder)->Destroy(recorder);
480
481 sf_close(sndfile);
482 }
483
484 //-----------------------------------------------------------------
main(int argc,char * const argv[])485 int main(int argc, char* const argv[])
486 {
487 int durationInSeconds = 10;
488 SLresult result;
489 SLObjectItf sl;
490
491 const char *prog = argv[0];
492 printf("OpenSL ES test %s: exercises SLRecordItf and SLAndroidSimpleBufferQueueItf ",
493 prog);
494 printf("on an AudioRecorder object\n");
495
496 int i;
497 for (i = 1; i < argc; ++i) {
498 const char *arg = argv[i];
499 if (arg[0] != '-') {
500 break;
501 }
502 switch (arg[1]) {
503 case 'c': // channel count
504 channelCount = atoi(&arg[2]);
505 break;
506 case 'd': // duration in seconds
507 durationInSeconds = atoi(&arg[2]);
508 break;
509 case 'f':
510 transferFormat = AUDIO_FORMAT_PCM_FLOAT;
511 break;
512 case 'i':
513 useIndexChannelMask = true;
514 break;
515 case 'p': // preset number
516 presetValue = atoi(&arg[2]);
517 break;
518 case 'r':
519 sampleRate = atoi(&arg[2]);
520 break;
521 case '1':
522 transferFormat = AUDIO_FORMAT_PCM_8_BIT;
523 break;
524 case '2':
525 transferFormat = AUDIO_FORMAT_PCM_16_BIT;
526 break;
527 case '4':
528 transferFormat = AUDIO_FORMAT_PCM_32_BIT;
529 break;
530 case 'm':
531 performanceMode = atoi(&arg[2]);
532 break;
533 case 'x':
534 if (strstr(arg, "e") != NULL) {
535 aec = true;
536 }
537 if (strstr(arg, "a") != NULL) {
538 agc = true;
539 }
540 if (strstr(arg, "n") != NULL) {
541 ns = true;
542 }
543 break;
544 default:
545 fprintf(stderr, "%s: unknown option %s\n", prog, arg);
546 break;
547 }
548 }
549
550 if (transferFormat == AUDIO_FORMAT_DEFAULT) {
551 transferFormat = AUDIO_FORMAT_PCM_16_BIT;
552 }
553 frameSize = audio_bytes_per_sample(transferFormat) * channelCount;
554
555 if (argc-i != 1) {
556 printf("Usage: \t%s [-c#] [-d#] [-i] [-p#] [-r#] [-1/2/4/f] destination_file\n", prog);
557 printf(" -c# channel count, defaults to 1\n");
558 printf(" -d# duration in seconds, default to 10\n");
559 printf(" -i index channel mask, not yet implemented\n");
560 printf(" -p# is the preset value which defaults to SL_ANDROID_RECORDING_PRESET_NONE\n");
561 printf(" possible values are:\n");
562 printf(" -p%d SL_ANDROID_RECORDING_PRESET_NONE\n",
563 SL_ANDROID_RECORDING_PRESET_NONE);
564 printf(" -p%d SL_ANDROID_RECORDING_PRESET_GENERIC\n",
565 SL_ANDROID_RECORDING_PRESET_GENERIC);
566 printf(" -p%d SL_ANDROID_RECORDING_PRESET_CAMCORDER\n",
567 SL_ANDROID_RECORDING_PRESET_CAMCORDER);
568 printf(" -p%d SL_ANDROID_RECORDING_PRESET_VOICE_RECOGNITION\n",
569 SL_ANDROID_RECORDING_PRESET_VOICE_RECOGNITION);
570 printf(" -p%d SL_ANDROID_RECORDING_PRESET_VOICE_COMMUNICATION\n",
571 SL_ANDROID_RECORDING_PRESET_VOICE_COMMUNICATION);
572 printf(" -r# sample rate in Hz, defaults to 48000\n");
573 printf(" -[1/2/4/f] sample format: 8-bit unsigned, 16-bit signed, 32-bit signed, float, "
574 "defaults to 16-bit signed\n");
575 printf(" -m# is the performance mode value which defaults to"
576 " SL_ANDROID_PERFORMANCE_LATENCY\n");
577 printf(" possible values are:\n");
578 printf(" -m%d SL_ANDROID_PERFORMANCE_NONE\n",
579 SL_ANDROID_PERFORMANCE_NONE);
580 printf(" -m%d SL_ANDROID_PERFORMANCE_LATENCY\n",
581 SL_ANDROID_PERFORMANCE_LATENCY);
582 printf(" -m%d SL_ANDROID_PERFORMANCE_LATENCY_EFFECTS\n",
583 SL_ANDROID_PERFORMANCE_LATENCY_EFFECTS);
584 printf(" -m%d SL_ANDROID_PERFORMANCE_POWER_SAVING\n",
585 SL_ANDROID_PERFORMANCE_POWER_SAVING);
586 printf(" -x[e][a][n] for pre processing:\n"
587 " - e: Echo canceler\n"
588 " - a: Automatic Gain Control\n"
589 " - n: Noise Suppression\n");
590 printf("Example: \"%s /sdcard/myrec.wav\" \n", prog);
591 exit(EXIT_FAILURE);
592 }
593
594 SLEngineOption EngineOption[] = {
595 {(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE}
596 };
597
598 result = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL);
599 ExitOnError(result);
600
601 /* Realizing the SL Engine in synchronous mode. */
602 result = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
603 ExitOnError(result);
604
605 TestRecToBuffQueue(sl, argv[i], durationInSeconds);
606
607 /* Shutdown OpenSL ES */
608 (*sl)->Destroy(sl);
609
610 return EXIT_SUCCESS;
611 }
612