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,
127 BUFFER_SIZE_IN_BYTES);
128 (void) sf_writef_short(sndfile, (const short *) temp, frameCount);
129 } break;
130 case AUDIO_FORMAT_PCM_16_BIT:
131 (void) sf_writef_short(sndfile, (const short *) pCntxt->pDataBase, frameCount);
132 break;
133 case AUDIO_FORMAT_PCM_32_BIT:
134 (void) sf_writef_int(sndfile, (const int *) pCntxt->pDataBase, frameCount);
135 break;
136 case AUDIO_FORMAT_PCM_FLOAT:
137 (void) sf_writef_float(sndfile, (const float *) pCntxt->pDataBase, frameCount);
138 break;
139 default:
140 fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
141 exit(EXIT_FAILURE);
142 }
143
144 /* Increase data pointer by buffer size */
145 pCntxt->pData += BUFFER_SIZE_IN_BYTES;
146
147 if (pCntxt->pData >= pCntxt->pDataBase + (NB_BUFFERS_IN_QUEUE * BUFFER_SIZE_IN_BYTES)) {
148 pCntxt->pData = pCntxt->pDataBase;
149 }
150
151 ExitOnError( (*queueItf)->Enqueue(queueItf, pCntxt->pDataBase, BUFFER_SIZE_IN_BYTES) );
152
153 SLAndroidSimpleBufferQueueState recQueueState;
154 ExitOnError( (*queueItf)->GetState(queueItf, &recQueueState) );
155
156 /*fprintf(stderr, "\tRecBufferQueueCallback now has pCntxt->pData=%p queue: "
157 "count=%u playIndex=%u\n",
158 pCntxt->pData, recQueueState.count, recQueueState.index);*/
159 //printf("RecBufferQueueCallback returned\n");
160 }
161
162 //-----------------------------------------------------------------
163
164 /* Record to an audio path by opening a file descriptor on that path */
TestRecToBuffQueue(SLObjectItf sl,const char * path,SLAint64 durationInSeconds)165 void TestRecToBuffQueue( SLObjectItf sl, const char* path, SLAint64 durationInSeconds)
166 {
167 SF_INFO info;
168 info.frames = 0;
169 info.samplerate = sampleRate;
170 info.channels = channelCount;
171 switch (transferFormat) {
172 case AUDIO_FORMAT_PCM_8_BIT:
173 info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_U8;
174 break;
175 case AUDIO_FORMAT_PCM_16_BIT:
176 info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
177 break;
178 case AUDIO_FORMAT_PCM_32_BIT:
179 info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_32;
180 break;
181 case AUDIO_FORMAT_PCM_FLOAT:
182 info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
183 break;
184 default:
185 fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
186 exit(EXIT_FAILURE);
187 }
188 sndfile = sf_open(path, SFM_WRITE, &info);
189 if (sndfile == NULL) {
190 ExitOnError(SL_RESULT_RESOURCE_ERROR);
191 }
192
193 SLresult result;
194 SLEngineItf EngineItf;
195
196 /* Objects this application uses: one audio recorder */
197 SLObjectItf recorder;
198
199 /* Interfaces for the audio recorder */
200 SLAndroidSimpleBufferQueueItf recBuffQueueItf;
201 SLRecordItf recordItf;
202 SLAndroidConfigurationItf configItf;
203
204 /* Source of audio data for the recording */
205 SLDataSource recSource;
206 SLDataLocator_IODevice ioDevice;
207
208 /* Data sink for recorded audio */
209 SLDataSink recDest;
210 SLDataLocator_AndroidSimpleBufferQueue recBuffQueue;
211 /* As mentioned in the Android extension API documentation this is identical to
212 * OpenSL ES 1.1 SLDataFormat_PCM_EX, and can be used for an instance of SLDataFormat_PCM.
213 */
214 SLAndroidDataFormat_PCM_EX pcm;
215
216 int numInterfaces = NUM_EXPLICIT_INTERFACES_FOR_RECORDER;
217 if (aec) numInterfaces++;
218 if (agc) numInterfaces++;
219 if (ns) numInterfaces++;
220
221 SLboolean required[numInterfaces];
222 SLInterfaceID iidArray[numInterfaces];
223
224 /* Get the SL Engine Interface which is implicit */
225 result = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf);
226 ExitOnError(result);
227
228 /* Initialize arrays required[] and iidArray[] */
229 for (int i=0 ; i < numInterfaces ; i++) {
230 required[i] = SL_BOOLEAN_FALSE;
231 iidArray[i] = SL_IID_NULL;
232 }
233
234
235 /* ------------------------------------------------------ */
236 /* Configuration of the recorder */
237
238 /* Request the AndroidSimpleBufferQueue and AndroidConfiguration interfaces */
239 int index = 0;
240 required[index] = SL_BOOLEAN_TRUE;
241 iidArray[index++] = SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
242 required[index] = SL_BOOLEAN_TRUE;
243 iidArray[index++] = SL_IID_ANDROIDCONFIGURATION;
244 if (aec) {
245 iidArray[index++] = SL_IID_ANDROIDACOUSTICECHOCANCELLATION;
246 }
247 if (agc) {
248 iidArray[index++] = SL_IID_ANDROIDAUTOMATICGAINCONTROL;
249 }
250 if (ns) {
251 iidArray[index++] = SL_IID_ANDROIDNOISESUPPRESSION;
252 }
253
254 /* Setup the data source */
255 ioDevice.locatorType = SL_DATALOCATOR_IODEVICE;
256 ioDevice.deviceType = SL_IODEVICE_AUDIOINPUT;
257 ioDevice.deviceID = SL_DEFAULTDEVICEID_AUDIOINPUT;
258 ioDevice.device = NULL;
259 recSource.pLocator = (void *) &ioDevice;
260 recSource.pFormat = NULL;
261
262 /* Setup the data sink */
263 recBuffQueue.locatorType = SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE;
264 recBuffQueue.numBuffers = NB_BUFFERS_IN_QUEUE;
265 /* set up the format of the data in the buffer queue */
266 pcm.formatType = transferFormat == AUDIO_FORMAT_PCM_FLOAT ||
267 transferFormat == AUDIO_FORMAT_PCM_8_BIT ?
268 SL_ANDROID_DATAFORMAT_PCM_EX : SL_DATAFORMAT_PCM;
269 pcm.numChannels = channelCount;
270 pcm.sampleRate = sampleRate * 1000; // milliHz
271 pcm.representation = SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT;
272 switch (transferFormat) {
273 case AUDIO_FORMAT_PCM_16_BIT:
274 pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
275 pcm.containerSize = 16;
276 break;
277 case AUDIO_FORMAT_PCM_32_BIT:
278 pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_32;
279 pcm.containerSize = 32;
280 break;
281 case AUDIO_FORMAT_PCM_8_BIT:
282 pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_8;
283 pcm.containerSize = 8;
284 pcm.representation = SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT;
285 break;
286 case AUDIO_FORMAT_PCM_FLOAT:
287 pcm.bitsPerSample = 32;
288 pcm.containerSize = 32;
289 pcm.representation = SL_ANDROID_PCM_REPRESENTATION_FLOAT;
290 break;
291 default:
292 fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
293 exit(EXIT_FAILURE);
294 }
295 if (useIndexChannelMask) {
296 pcm.channelMask = (1 << channelCount) - 1;
297 } else {
298 switch (channelCount) {
299 case 1:
300 pcm.channelMask = SL_SPEAKER_FRONT_LEFT;
301 break;
302 case 2:
303 pcm.channelMask = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
304 break;
305 default:
306 fprintf(stderr, "Unsupported channel count %d\n", channelCount);
307 exit(EXIT_FAILURE);
308 }
309 }
310 pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
311
312 recDest.pLocator = (void *) &recBuffQueue;
313 recDest.pFormat = (void * ) &pcm;
314
315 /* Create the audio recorder */
316 result = (*EngineItf)->CreateAudioRecorder(EngineItf, &recorder, &recSource, &recDest,
317 numInterfaces, iidArray, required);
318 ExitOnError(result);
319 printf("Recorder created\n");
320
321 /* Get the Android configuration interface which is explicit */
322 result = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDCONFIGURATION, (void*)&configItf);
323 ExitOnError(result);
324
325 /* Use the configuration interface to configure the recorder before it's realized */
326 if (presetValue != SL_ANDROID_RECORDING_PRESET_NONE) {
327 result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_RECORDING_PRESET,
328 &presetValue, sizeof(SLuint32));
329 ExitOnError(result);
330 printf("Recorder configured with preset %u\n", presetValue);
331 } else {
332 printf("Using default record preset\n");
333 }
334
335 if (performanceMode != SL_ANDROID_PERFORMANCE_LATENCY) {
336 result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_PERFORMANCE_MODE,
337 &performanceMode, sizeof(SLuint32));
338 ExitOnError(result);
339 printf("Recorder configured with performance mode %u\n", performanceMode);
340 } else {
341 printf("Using default performance mode\n");
342 }
343
344 SLuint32 presetRetrieved = SL_ANDROID_RECORDING_PRESET_NONE;
345 SLuint32 presetSize = 2*sizeof(SLuint32); // intentionally too big
346 result = (*configItf)->GetConfiguration(configItf, SL_ANDROID_KEY_RECORDING_PRESET,
347 &presetSize, (void*)&presetRetrieved);
348 ExitOnError(result);
349 if (presetValue == SL_ANDROID_RECORDING_PRESET_NONE) {
350 printf("The default record preset appears to be %u\n", presetRetrieved);
351 } else if (presetValue != presetRetrieved) {
352 fprintf(stderr, "Error retrieving recording preset as %u instead of %u\n", presetRetrieved,
353 presetValue);
354 ExitOnError(SL_RESULT_INTERNAL_ERROR);
355 }
356
357 /* Realize the recorder in synchronous mode. */
358 result = (*recorder)->Realize(recorder, SL_BOOLEAN_FALSE);
359 ExitOnError(result);
360 printf("Recorder realized\n");
361
362 /* Check actual performance mode granted*/
363 SLuint32 modeRetrieved = SL_ANDROID_PERFORMANCE_NONE;
364 SLuint32 modeSize = sizeof(SLuint32);
365 result = (*configItf)->GetConfiguration(configItf, SL_ANDROID_KEY_PERFORMANCE_MODE,
366 &modeSize, (void*)&modeRetrieved);
367 ExitOnError(result);
368 printf("Actual performance mode is %u\n", modeRetrieved);
369
370 /* Get the record interface which is implicit */
371 result = (*recorder)->GetInterface(recorder, SL_IID_RECORD, (void*)&recordItf);
372 ExitOnError(result);
373
374 /* Set up the recorder callback to get events during the recording */
375 result = (*recordItf)->SetMarkerPosition(recordItf, 2000);
376 ExitOnError(result);
377 result = (*recordItf)->SetPositionUpdatePeriod(recordItf, 500);
378 ExitOnError(result);
379 result = (*recordItf)->SetCallbackEventsMask(recordItf,
380 SL_RECORDEVENT_HEADATMARKER | SL_RECORDEVENT_HEADATNEWPOS);
381 ExitOnError(result);
382 result = (*recordItf)->RegisterCallback(recordItf, RecCallback, NULL);
383 ExitOnError(result);
384 printf("Recorder callback registered\n");
385
386 /* Enable AEC if requested */
387 if (aec) {
388 SLAndroidAcousticEchoCancellationItf aecItf;
389 result = (*recorder)->GetInterface(
390 recorder, SL_IID_ANDROIDACOUSTICECHOCANCELLATION, (void*)&aecItf);
391 printf("AEC is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
392 if (SL_RESULT_SUCCESS == result) {
393 result = (*aecItf)->SetEnabled(aecItf, true);
394 ExitOnError(result);
395 SLboolean enabled;
396 result = (*aecItf)->IsEnabled(aecItf, &enabled);
397 ExitOnError(result);
398 printf("AEC is %s\n", enabled ? "enabled" : "not enabled");
399 }
400 }
401
402 /* Enable AGC if requested */
403 if (agc) {
404 SLAndroidAutomaticGainControlItf agcItf;
405 result = (*recorder)->GetInterface(
406 recorder, SL_IID_ANDROIDAUTOMATICGAINCONTROL, (void*)&agcItf);
407 printf("AGC is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
408 if (SL_RESULT_SUCCESS == result) {
409 result = (*agcItf)->SetEnabled(agcItf, true);
410 ExitOnError(result);
411 SLboolean enabled;
412 result = (*agcItf)->IsEnabled(agcItf, &enabled);
413 ExitOnError(result);
414 printf("AGC is %s\n", enabled ? "enabled" : "not enabled");
415 }
416 }
417
418 /* Enable NS if requested */
419 if (ns) {
420 SLAndroidNoiseSuppressionItf nsItf;
421 result = (*recorder)->GetInterface(
422 recorder, SL_IID_ANDROIDNOISESUPPRESSION, (void*)&nsItf);
423 printf("NS is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
424 if (SL_RESULT_SUCCESS == result) {
425 result = (*nsItf)->SetEnabled(nsItf, true);
426 ExitOnError(result);
427 SLboolean enabled;
428 result = (*nsItf)->IsEnabled(nsItf, &enabled);
429 ExitOnError(result);
430 printf("NS is %s\n", enabled ? "enabled" : "not enabled");
431 }
432 }
433
434 /* Get the buffer queue interface which was explicitly requested */
435 result = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDSIMPLEBUFFERQUEUE,
436 (void*)&recBuffQueueItf);
437 ExitOnError(result);
438
439 /* ------------------------------------------------------ */
440 /* Initialize the callback and its context for the recording buffer queue */
441 CallbackCntxt cntxt;
442 cntxt.pDataBase = (int8_t*)&pcmData;
443 cntxt.pData = cntxt.pDataBase;
444 cntxt.size = sizeof(pcmData);
445 result = (*recBuffQueueItf)->RegisterCallback(recBuffQueueItf, RecBufferQueueCallback, &cntxt);
446 ExitOnError(result);
447
448 /* Enqueue buffers to map the region of memory allocated to store the recorded data */
449 printf("Enqueueing buffer ");
450 for(int i = 0 ; i < NB_BUFFERS_IN_QUEUE ; i++) {
451 printf("%d ", i);
452 result = (*recBuffQueueItf)->Enqueue(recBuffQueueItf, cntxt.pData, BUFFER_SIZE_IN_BYTES);
453 ExitOnError(result);
454 cntxt.pData += BUFFER_SIZE_IN_BYTES;
455 }
456 printf("\n");
457 cntxt.pData = cntxt.pDataBase;
458
459 /* ------------------------------------------------------ */
460 /* Start recording */
461 result = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_RECORDING);
462 ExitOnError(result);
463 printf("Starting to record\n");
464
465 /* Record for at least a second */
466 if (durationInSeconds < 1) {
467 durationInSeconds = 1;
468 }
469 usleep(durationInSeconds * 1000 * 1000);
470
471 /* ------------------------------------------------------ */
472 /* End of recording */
473
474 /* Stop recording */
475 result = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
476 ExitOnError(result);
477 printf("Stopped recording\n");
478
479 /* Destroy the AudioRecorder object */
480 (*recorder)->Destroy(recorder);
481
482 sf_close(sndfile);
483 }
484
485 //-----------------------------------------------------------------
main(int argc,char * const argv[])486 int main(int argc, char* const argv[])
487 {
488 int durationInSeconds = 10;
489 SLresult result;
490 SLObjectItf sl;
491
492 const char *prog = argv[0];
493 printf("OpenSL ES test %s: exercises SLRecordItf and SLAndroidSimpleBufferQueueItf ",
494 prog);
495 printf("on an AudioRecorder object\n");
496
497 int i;
498 for (i = 1; i < argc; ++i) {
499 const char *arg = argv[i];
500 if (arg[0] != '-') {
501 break;
502 }
503 switch (arg[1]) {
504 case 'c': // channel count
505 channelCount = atoi(&arg[2]);
506 break;
507 case 'd': // duration in seconds
508 durationInSeconds = atoi(&arg[2]);
509 break;
510 case 'f':
511 transferFormat = AUDIO_FORMAT_PCM_FLOAT;
512 break;
513 case 'i':
514 useIndexChannelMask = true;
515 break;
516 case 'p': // preset number
517 presetValue = atoi(&arg[2]);
518 break;
519 case 'r':
520 sampleRate = atoi(&arg[2]);
521 break;
522 case '1':
523 transferFormat = AUDIO_FORMAT_PCM_8_BIT;
524 break;
525 case '2':
526 transferFormat = AUDIO_FORMAT_PCM_16_BIT;
527 break;
528 case '4':
529 transferFormat = AUDIO_FORMAT_PCM_32_BIT;
530 break;
531 case 'm':
532 performanceMode = atoi(&arg[2]);
533 break;
534 case 'x':
535 if (strstr(arg, "e") != NULL) {
536 aec = true;
537 }
538 if (strstr(arg, "a") != NULL) {
539 agc = true;
540 }
541 if (strstr(arg, "n") != NULL) {
542 ns = true;
543 }
544 break;
545 default:
546 fprintf(stderr, "%s: unknown option %s\n", prog, arg);
547 break;
548 }
549 }
550
551 if (transferFormat == AUDIO_FORMAT_DEFAULT) {
552 transferFormat = AUDIO_FORMAT_PCM_16_BIT;
553 }
554 frameSize = audio_bytes_per_sample(transferFormat) * channelCount;
555
556 if (argc-i != 1) {
557 printf("Usage: \t%s [-c#] [-d#] [-i] [-p#] [-r#] [-1/2/4/f] destination_file\n", prog);
558 printf(" -c# channel count, defaults to 1\n");
559 printf(" -d# duration in seconds, default to 10\n");
560 printf(" -i index channel mask, not yet implemented\n");
561 printf(" -p# is the preset value which defaults to SL_ANDROID_RECORDING_PRESET_NONE\n");
562 printf(" possible values are:\n");
563 printf(" -p%d SL_ANDROID_RECORDING_PRESET_NONE\n",
564 SL_ANDROID_RECORDING_PRESET_NONE);
565 printf(" -p%d SL_ANDROID_RECORDING_PRESET_GENERIC\n",
566 SL_ANDROID_RECORDING_PRESET_GENERIC);
567 printf(" -p%d SL_ANDROID_RECORDING_PRESET_CAMCORDER\n",
568 SL_ANDROID_RECORDING_PRESET_CAMCORDER);
569 printf(" -p%d SL_ANDROID_RECORDING_PRESET_VOICE_RECOGNITION\n",
570 SL_ANDROID_RECORDING_PRESET_VOICE_RECOGNITION);
571 printf(" -p%d SL_ANDROID_RECORDING_PRESET_VOICE_COMMUNICATION\n",
572 SL_ANDROID_RECORDING_PRESET_VOICE_COMMUNICATION);
573 printf(" -r# sample rate in Hz, defaults to 48000\n");
574 printf(" -[1/2/4/f] sample format: 8-bit unsigned, 16-bit signed, 32-bit signed, float, "
575 "defaults to 16-bit signed\n");
576 printf(" -m# is the performance mode value which defaults to"
577 " SL_ANDROID_PERFORMANCE_LATENCY\n");
578 printf(" possible values are:\n");
579 printf(" -m%d SL_ANDROID_PERFORMANCE_NONE\n",
580 SL_ANDROID_PERFORMANCE_NONE);
581 printf(" -m%d SL_ANDROID_PERFORMANCE_LATENCY\n",
582 SL_ANDROID_PERFORMANCE_LATENCY);
583 printf(" -m%d SL_ANDROID_PERFORMANCE_LATENCY_EFFECTS\n",
584 SL_ANDROID_PERFORMANCE_LATENCY_EFFECTS);
585 printf(" -m%d SL_ANDROID_PERFORMANCE_POWER_SAVING\n",
586 SL_ANDROID_PERFORMANCE_POWER_SAVING);
587 printf(" -x[e][a][n] for pre processing:\n"
588 " - e: Echo canceler\n"
589 " - a: Automatic Gain Control\n"
590 " - n: Noise Suppression\n");
591 printf("Example: \"%s /sdcard/myrec.wav\" \n", prog);
592 exit(EXIT_FAILURE);
593 }
594
595 SLEngineOption EngineOption[] = {
596 {(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE}
597 };
598
599 result = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL);
600 ExitOnError(result);
601
602 /* Realizing the SL Engine in synchronous mode. */
603 result = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
604 ExitOnError(result);
605
606 TestRecToBuffQueue(sl, argv[i], durationInSeconds);
607
608 /* Shutdown OpenSL ES */
609 (*sl)->Destroy(sl);
610
611 return EXIT_SUCCESS;
612 }
613