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613 lines
22 KiB
613 lines
22 KiB
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Audio Record Test
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First run the program from shell:
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% adb shell slesTest_recBuffQueue /sdcard/myrec.wav
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These use adb on host to retrive the file:
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% adb pull /sdcard/myrec.wav
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <system/audio.h>
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#include <audio_utils/primitives.h>
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#include <audio_utils/sndfile.h>
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#include <SLES/OpenSLES.h>
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#include <SLES/OpenSLES_Android.h>
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audio_format_t transferFormat = AUDIO_FORMAT_DEFAULT;
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uint32_t sampleRate = 48000;
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int channelCount = 1;
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bool useIndexChannelMask = false;
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size_t frameSize;
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uint32_t performanceMode = SL_ANDROID_PERFORMANCE_LATENCY;
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bool aec = false;
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bool agc = false;
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bool ns = false;
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/* Preset number to use for recording */
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SLuint32 presetValue = SL_ANDROID_RECORDING_PRESET_NONE;
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/* Explicitly requesting SL_IID_ANDROIDSIMPLEBUFFERQUEUE and SL_IID_ANDROIDCONFIGURATION
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* on the AudioRecorder object */
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#define NUM_EXPLICIT_INTERFACES_FOR_RECORDER 2
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/* Size of the recording buffer queue */
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#define NB_BUFFERS_IN_QUEUE 1
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/* Size of each buffer in the queue */
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#define BUFFER_SIZE_IN_BYTES 2048
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/* Local storage for Audio data */
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int8_t pcmData[NB_BUFFERS_IN_QUEUE * BUFFER_SIZE_IN_BYTES];
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/* destination for recorded data */
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SNDFILE *sndfile;
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//-----------------------------------------------------------------
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/* Exits the application if an error is encountered */
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#define ExitOnError(x) ExitOnErrorFunc(x,__LINE__)
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void ExitOnErrorFunc( SLresult result , int line)
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{
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if (SL_RESULT_SUCCESS != result) {
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fprintf(stderr, "%u error code encountered at line %d, exiting\n", result, line);
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exit(EXIT_FAILURE);
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}
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}
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//-----------------------------------------------------------------
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/* Structure for passing information to callback function */
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typedef struct CallbackCntxt_ {
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SLPlayItf playItf;
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SLuint32 size;
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SLint8* pDataBase; // Base address of local audio data storage
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SLint8* pData; // Current address of local audio data storage
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} CallbackCntxt;
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//-----------------------------------------------------------------
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/* Callback for recording buffer queue events */
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void RecCallback(
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SLRecordItf caller,
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void *pContext __unused,
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SLuint32 event)
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{
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if (SL_RECORDEVENT_HEADATNEWPOS & event) {
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SLmillisecond pMsec = 0;
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(*caller)->GetPosition(caller, &pMsec);
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printf("SL_RECORDEVENT_HEADATNEWPOS current position=%ums\n", pMsec);
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}
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if (SL_RECORDEVENT_HEADATMARKER & event) {
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SLmillisecond pMsec = 0;
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(*caller)->GetPosition(caller, &pMsec);
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printf("SL_RECORDEVENT_HEADATMARKER current position=%ums\n", pMsec);
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}
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}
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//-----------------------------------------------------------------
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/* Callback for recording buffer queue events */
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void RecBufferQueueCallback(
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SLAndroidSimpleBufferQueueItf queueItf,
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void *pContext)
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{
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//printf("RecBufferQueueCallback called\n");
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CallbackCntxt *pCntxt = (CallbackCntxt*)pContext;
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/* Save the recorded data */
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sf_count_t frameCount = BUFFER_SIZE_IN_BYTES / frameSize;
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switch (transferFormat) {
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case AUDIO_FORMAT_PCM_8_BIT: {
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short temp[BUFFER_SIZE_IN_BYTES];
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memcpy_to_i16_from_u8(temp, (const unsigned char *) pCntxt->pDataBase,
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BUFFER_SIZE_IN_BYTES);
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(void) sf_writef_short(sndfile, (const short *) temp, frameCount);
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} break;
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case AUDIO_FORMAT_PCM_16_BIT:
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(void) sf_writef_short(sndfile, (const short *) pCntxt->pDataBase, frameCount);
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break;
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case AUDIO_FORMAT_PCM_32_BIT:
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(void) sf_writef_int(sndfile, (const int *) pCntxt->pDataBase, frameCount);
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break;
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case AUDIO_FORMAT_PCM_FLOAT:
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(void) sf_writef_float(sndfile, (const float *) pCntxt->pDataBase, frameCount);
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break;
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default:
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fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
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exit(EXIT_FAILURE);
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}
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/* Increase data pointer by buffer size */
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pCntxt->pData += BUFFER_SIZE_IN_BYTES;
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if (pCntxt->pData >= pCntxt->pDataBase + (NB_BUFFERS_IN_QUEUE * BUFFER_SIZE_IN_BYTES)) {
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pCntxt->pData = pCntxt->pDataBase;
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}
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ExitOnError( (*queueItf)->Enqueue(queueItf, pCntxt->pDataBase, BUFFER_SIZE_IN_BYTES) );
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SLAndroidSimpleBufferQueueState recQueueState;
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ExitOnError( (*queueItf)->GetState(queueItf, &recQueueState) );
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/*fprintf(stderr, "\tRecBufferQueueCallback now has pCntxt->pData=%p queue: "
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"count=%u playIndex=%u\n",
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pCntxt->pData, recQueueState.count, recQueueState.index);*/
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//printf("RecBufferQueueCallback returned\n");
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}
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//-----------------------------------------------------------------
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/* Record to an audio path by opening a file descriptor on that path */
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void TestRecToBuffQueue( SLObjectItf sl, const char* path, SLAint64 durationInSeconds)
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{
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SF_INFO info;
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info.frames = 0;
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info.samplerate = sampleRate;
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info.channels = channelCount;
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switch (transferFormat) {
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case AUDIO_FORMAT_PCM_8_BIT:
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info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_U8;
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break;
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case AUDIO_FORMAT_PCM_16_BIT:
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info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
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break;
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case AUDIO_FORMAT_PCM_32_BIT:
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info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_32;
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break;
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case AUDIO_FORMAT_PCM_FLOAT:
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info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
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break;
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default:
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fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
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exit(EXIT_FAILURE);
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}
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sndfile = sf_open(path, SFM_WRITE, &info);
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if (sndfile == NULL) {
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ExitOnError(SL_RESULT_RESOURCE_ERROR);
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}
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SLresult result;
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SLEngineItf EngineItf;
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/* Objects this application uses: one audio recorder */
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SLObjectItf recorder;
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/* Interfaces for the audio recorder */
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SLAndroidSimpleBufferQueueItf recBuffQueueItf;
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SLRecordItf recordItf;
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SLAndroidConfigurationItf configItf;
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/* Source of audio data for the recording */
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SLDataSource recSource;
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SLDataLocator_IODevice ioDevice;
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/* Data sink for recorded audio */
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SLDataSink recDest;
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SLDataLocator_AndroidSimpleBufferQueue recBuffQueue;
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/* As mentioned in the Android extension API documentation this is identical to
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* OpenSL ES 1.1 SLDataFormat_PCM_EX, and can be used for an instance of SLDataFormat_PCM.
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*/
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SLAndroidDataFormat_PCM_EX pcm;
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int numInterfaces = NUM_EXPLICIT_INTERFACES_FOR_RECORDER;
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if (aec) numInterfaces++;
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if (agc) numInterfaces++;
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if (ns) numInterfaces++;
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SLboolean required[numInterfaces];
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SLInterfaceID iidArray[numInterfaces];
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/* Get the SL Engine Interface which is implicit */
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result = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf);
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ExitOnError(result);
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/* Initialize arrays required[] and iidArray[] */
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for (int i=0 ; i < numInterfaces ; i++) {
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required[i] = SL_BOOLEAN_FALSE;
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iidArray[i] = SL_IID_NULL;
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}
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/* ------------------------------------------------------ */
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/* Configuration of the recorder */
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/* Request the AndroidSimpleBufferQueue and AndroidConfiguration interfaces */
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int index = 0;
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required[index] = SL_BOOLEAN_TRUE;
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iidArray[index++] = SL_IID_ANDROIDSIMPLEBUFFERQUEUE;
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required[index] = SL_BOOLEAN_TRUE;
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iidArray[index++] = SL_IID_ANDROIDCONFIGURATION;
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if (aec) {
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iidArray[index++] = SL_IID_ANDROIDACOUSTICECHOCANCELLATION;
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}
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if (agc) {
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iidArray[index++] = SL_IID_ANDROIDAUTOMATICGAINCONTROL;
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}
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if (ns) {
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iidArray[index++] = SL_IID_ANDROIDNOISESUPPRESSION;
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}
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/* Setup the data source */
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ioDevice.locatorType = SL_DATALOCATOR_IODEVICE;
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ioDevice.deviceType = SL_IODEVICE_AUDIOINPUT;
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ioDevice.deviceID = SL_DEFAULTDEVICEID_AUDIOINPUT;
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ioDevice.device = NULL;
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recSource.pLocator = (void *) &ioDevice;
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recSource.pFormat = NULL;
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/* Setup the data sink */
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recBuffQueue.locatorType = SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE;
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recBuffQueue.numBuffers = NB_BUFFERS_IN_QUEUE;
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/* set up the format of the data in the buffer queue */
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pcm.formatType = transferFormat == AUDIO_FORMAT_PCM_FLOAT ||
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transferFormat == AUDIO_FORMAT_PCM_8_BIT ?
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SL_ANDROID_DATAFORMAT_PCM_EX : SL_DATAFORMAT_PCM;
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pcm.numChannels = channelCount;
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pcm.sampleRate = sampleRate * 1000; // milliHz
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pcm.representation = SL_ANDROID_PCM_REPRESENTATION_SIGNED_INT;
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switch (transferFormat) {
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case AUDIO_FORMAT_PCM_16_BIT:
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pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
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pcm.containerSize = 16;
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break;
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case AUDIO_FORMAT_PCM_32_BIT:
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pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_32;
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pcm.containerSize = 32;
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break;
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case AUDIO_FORMAT_PCM_8_BIT:
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pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_8;
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pcm.containerSize = 8;
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pcm.representation = SL_ANDROID_PCM_REPRESENTATION_UNSIGNED_INT;
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break;
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case AUDIO_FORMAT_PCM_FLOAT:
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pcm.bitsPerSample = 32;
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pcm.containerSize = 32;
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pcm.representation = SL_ANDROID_PCM_REPRESENTATION_FLOAT;
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break;
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default:
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fprintf(stderr, "Unsupported transfer format %d\n", transferFormat);
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exit(EXIT_FAILURE);
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}
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if (useIndexChannelMask) {
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pcm.channelMask = (1 << channelCount) - 1;
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} else {
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switch (channelCount) {
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case 1:
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pcm.channelMask = SL_SPEAKER_FRONT_LEFT;
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break;
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case 2:
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pcm.channelMask = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
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break;
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default:
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fprintf(stderr, "Unsupported channel count %d\n", channelCount);
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exit(EXIT_FAILURE);
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}
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}
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pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
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recDest.pLocator = (void *) &recBuffQueue;
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recDest.pFormat = (void * ) &pcm;
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/* Create the audio recorder */
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result = (*EngineItf)->CreateAudioRecorder(EngineItf, &recorder, &recSource, &recDest,
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numInterfaces, iidArray, required);
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ExitOnError(result);
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printf("Recorder created\n");
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/* Get the Android configuration interface which is explicit */
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result = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDCONFIGURATION, (void*)&configItf);
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ExitOnError(result);
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/* Use the configuration interface to configure the recorder before it's realized */
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if (presetValue != SL_ANDROID_RECORDING_PRESET_NONE) {
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result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_RECORDING_PRESET,
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&presetValue, sizeof(SLuint32));
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ExitOnError(result);
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printf("Recorder configured with preset %u\n", presetValue);
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} else {
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printf("Using default record preset\n");
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}
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if (performanceMode != SL_ANDROID_PERFORMANCE_LATENCY) {
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result = (*configItf)->SetConfiguration(configItf, SL_ANDROID_KEY_PERFORMANCE_MODE,
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&performanceMode, sizeof(SLuint32));
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ExitOnError(result);
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printf("Recorder configured with performance mode %u\n", performanceMode);
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} else {
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printf("Using default performance mode\n");
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}
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SLuint32 presetRetrieved = SL_ANDROID_RECORDING_PRESET_NONE;
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SLuint32 presetSize = 2*sizeof(SLuint32); // intentionally too big
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result = (*configItf)->GetConfiguration(configItf, SL_ANDROID_KEY_RECORDING_PRESET,
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&presetSize, (void*)&presetRetrieved);
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ExitOnError(result);
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if (presetValue == SL_ANDROID_RECORDING_PRESET_NONE) {
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printf("The default record preset appears to be %u\n", presetRetrieved);
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} else if (presetValue != presetRetrieved) {
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fprintf(stderr, "Error retrieving recording preset as %u instead of %u\n", presetRetrieved,
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presetValue);
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ExitOnError(SL_RESULT_INTERNAL_ERROR);
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}
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/* Realize the recorder in synchronous mode. */
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result = (*recorder)->Realize(recorder, SL_BOOLEAN_FALSE);
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ExitOnError(result);
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printf("Recorder realized\n");
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/* Check actual performance mode granted*/
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SLuint32 modeRetrieved = SL_ANDROID_PERFORMANCE_NONE;
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SLuint32 modeSize = sizeof(SLuint32);
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result = (*configItf)->GetConfiguration(configItf, SL_ANDROID_KEY_PERFORMANCE_MODE,
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&modeSize, (void*)&modeRetrieved);
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ExitOnError(result);
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printf("Actual performance mode is %u\n", modeRetrieved);
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/* Get the record interface which is implicit */
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result = (*recorder)->GetInterface(recorder, SL_IID_RECORD, (void*)&recordItf);
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ExitOnError(result);
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/* Set up the recorder callback to get events during the recording */
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result = (*recordItf)->SetMarkerPosition(recordItf, 2000);
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ExitOnError(result);
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result = (*recordItf)->SetPositionUpdatePeriod(recordItf, 500);
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ExitOnError(result);
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result = (*recordItf)->SetCallbackEventsMask(recordItf,
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SL_RECORDEVENT_HEADATMARKER | SL_RECORDEVENT_HEADATNEWPOS);
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ExitOnError(result);
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result = (*recordItf)->RegisterCallback(recordItf, RecCallback, NULL);
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ExitOnError(result);
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printf("Recorder callback registered\n");
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/* Enable AEC if requested */
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if (aec) {
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SLAndroidAcousticEchoCancellationItf aecItf;
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result = (*recorder)->GetInterface(
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recorder, SL_IID_ANDROIDACOUSTICECHOCANCELLATION, (void*)&aecItf);
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printf("AEC is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
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if (SL_RESULT_SUCCESS == result) {
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result = (*aecItf)->SetEnabled(aecItf, true);
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ExitOnError(result);
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SLboolean enabled;
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result = (*aecItf)->IsEnabled(aecItf, &enabled);
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ExitOnError(result);
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printf("AEC is %s\n", enabled ? "enabled" : "not enabled");
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}
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}
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/* Enable AGC if requested */
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if (agc) {
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SLAndroidAutomaticGainControlItf agcItf;
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result = (*recorder)->GetInterface(
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recorder, SL_IID_ANDROIDAUTOMATICGAINCONTROL, (void*)&agcItf);
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printf("AGC is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
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if (SL_RESULT_SUCCESS == result) {
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result = (*agcItf)->SetEnabled(agcItf, true);
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ExitOnError(result);
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SLboolean enabled;
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result = (*agcItf)->IsEnabled(agcItf, &enabled);
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ExitOnError(result);
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printf("AGC is %s\n", enabled ? "enabled" : "not enabled");
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}
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}
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/* Enable NS if requested */
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if (ns) {
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SLAndroidNoiseSuppressionItf nsItf;
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result = (*recorder)->GetInterface(
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recorder, SL_IID_ANDROIDNOISESUPPRESSION, (void*)&nsItf);
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printf("NS is %savailable\n", SL_RESULT_SUCCESS == result ? "" : "not ");
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if (SL_RESULT_SUCCESS == result) {
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result = (*nsItf)->SetEnabled(nsItf, true);
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ExitOnError(result);
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SLboolean enabled;
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result = (*nsItf)->IsEnabled(nsItf, &enabled);
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ExitOnError(result);
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printf("NS is %s\n", enabled ? "enabled" : "not enabled");
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}
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}
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/* Get the buffer queue interface which was explicitly requested */
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result = (*recorder)->GetInterface(recorder, SL_IID_ANDROIDSIMPLEBUFFERQUEUE,
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(void*)&recBuffQueueItf);
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ExitOnError(result);
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/* ------------------------------------------------------ */
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/* Initialize the callback and its context for the recording buffer queue */
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CallbackCntxt cntxt;
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cntxt.pDataBase = (int8_t*)&pcmData;
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cntxt.pData = cntxt.pDataBase;
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cntxt.size = sizeof(pcmData);
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result = (*recBuffQueueItf)->RegisterCallback(recBuffQueueItf, RecBufferQueueCallback, &cntxt);
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ExitOnError(result);
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/* Enqueue buffers to map the region of memory allocated to store the recorded data */
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printf("Enqueueing buffer ");
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for(int i = 0 ; i < NB_BUFFERS_IN_QUEUE ; i++) {
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printf("%d ", i);
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result = (*recBuffQueueItf)->Enqueue(recBuffQueueItf, cntxt.pData, BUFFER_SIZE_IN_BYTES);
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ExitOnError(result);
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cntxt.pData += BUFFER_SIZE_IN_BYTES;
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}
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printf("\n");
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cntxt.pData = cntxt.pDataBase;
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/* ------------------------------------------------------ */
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/* Start recording */
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result = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_RECORDING);
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ExitOnError(result);
|
|
printf("Starting to record\n");
|
|
|
|
/* Record for at least a second */
|
|
if (durationInSeconds < 1) {
|
|
durationInSeconds = 1;
|
|
}
|
|
usleep(durationInSeconds * 1000 * 1000);
|
|
|
|
/* ------------------------------------------------------ */
|
|
/* End of recording */
|
|
|
|
/* Stop recording */
|
|
result = (*recordItf)->SetRecordState(recordItf, SL_RECORDSTATE_STOPPED);
|
|
ExitOnError(result);
|
|
printf("Stopped recording\n");
|
|
|
|
/* Destroy the AudioRecorder object */
|
|
(*recorder)->Destroy(recorder);
|
|
|
|
sf_close(sndfile);
|
|
}
|
|
|
|
//-----------------------------------------------------------------
|
|
int main(int argc, char* const argv[])
|
|
{
|
|
int durationInSeconds = 10;
|
|
SLresult result;
|
|
SLObjectItf sl;
|
|
|
|
const char *prog = argv[0];
|
|
printf("OpenSL ES test %s: exercises SLRecordItf and SLAndroidSimpleBufferQueueItf ",
|
|
prog);
|
|
printf("on an AudioRecorder object\n");
|
|
|
|
int i;
|
|
for (i = 1; i < argc; ++i) {
|
|
const char *arg = argv[i];
|
|
if (arg[0] != '-') {
|
|
break;
|
|
}
|
|
switch (arg[1]) {
|
|
case 'c': // channel count
|
|
channelCount = atoi(&arg[2]);
|
|
break;
|
|
case 'd': // duration in seconds
|
|
durationInSeconds = atoi(&arg[2]);
|
|
break;
|
|
case 'f':
|
|
transferFormat = AUDIO_FORMAT_PCM_FLOAT;
|
|
break;
|
|
case 'i':
|
|
useIndexChannelMask = true;
|
|
break;
|
|
case 'p': // preset number
|
|
presetValue = atoi(&arg[2]);
|
|
break;
|
|
case 'r':
|
|
sampleRate = atoi(&arg[2]);
|
|
break;
|
|
case '1':
|
|
transferFormat = AUDIO_FORMAT_PCM_8_BIT;
|
|
break;
|
|
case '2':
|
|
transferFormat = AUDIO_FORMAT_PCM_16_BIT;
|
|
break;
|
|
case '4':
|
|
transferFormat = AUDIO_FORMAT_PCM_32_BIT;
|
|
break;
|
|
case 'm':
|
|
performanceMode = atoi(&arg[2]);
|
|
break;
|
|
case 'x':
|
|
if (strstr(arg, "e") != NULL) {
|
|
aec = true;
|
|
}
|
|
if (strstr(arg, "a") != NULL) {
|
|
agc = true;
|
|
}
|
|
if (strstr(arg, "n") != NULL) {
|
|
ns = true;
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, "%s: unknown option %s\n", prog, arg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (transferFormat == AUDIO_FORMAT_DEFAULT) {
|
|
transferFormat = AUDIO_FORMAT_PCM_16_BIT;
|
|
}
|
|
frameSize = audio_bytes_per_sample(transferFormat) * channelCount;
|
|
|
|
if (argc-i != 1) {
|
|
printf("Usage: \t%s [-c#] [-d#] [-i] [-p#] [-r#] [-1/2/4/f] destination_file\n", prog);
|
|
printf(" -c# channel count, defaults to 1\n");
|
|
printf(" -d# duration in seconds, default to 10\n");
|
|
printf(" -i index channel mask, not yet implemented\n");
|
|
printf(" -p# is the preset value which defaults to SL_ANDROID_RECORDING_PRESET_NONE\n");
|
|
printf(" possible values are:\n");
|
|
printf(" -p%d SL_ANDROID_RECORDING_PRESET_NONE\n",
|
|
SL_ANDROID_RECORDING_PRESET_NONE);
|
|
printf(" -p%d SL_ANDROID_RECORDING_PRESET_GENERIC\n",
|
|
SL_ANDROID_RECORDING_PRESET_GENERIC);
|
|
printf(" -p%d SL_ANDROID_RECORDING_PRESET_CAMCORDER\n",
|
|
SL_ANDROID_RECORDING_PRESET_CAMCORDER);
|
|
printf(" -p%d SL_ANDROID_RECORDING_PRESET_VOICE_RECOGNITION\n",
|
|
SL_ANDROID_RECORDING_PRESET_VOICE_RECOGNITION);
|
|
printf(" -p%d SL_ANDROID_RECORDING_PRESET_VOICE_COMMUNICATION\n",
|
|
SL_ANDROID_RECORDING_PRESET_VOICE_COMMUNICATION);
|
|
printf(" -r# sample rate in Hz, defaults to 48000\n");
|
|
printf(" -[1/2/4/f] sample format: 8-bit unsigned, 16-bit signed, 32-bit signed, float, "
|
|
"defaults to 16-bit signed\n");
|
|
printf(" -m# is the performance mode value which defaults to"
|
|
" SL_ANDROID_PERFORMANCE_LATENCY\n");
|
|
printf(" possible values are:\n");
|
|
printf(" -m%d SL_ANDROID_PERFORMANCE_NONE\n",
|
|
SL_ANDROID_PERFORMANCE_NONE);
|
|
printf(" -m%d SL_ANDROID_PERFORMANCE_LATENCY\n",
|
|
SL_ANDROID_PERFORMANCE_LATENCY);
|
|
printf(" -m%d SL_ANDROID_PERFORMANCE_LATENCY_EFFECTS\n",
|
|
SL_ANDROID_PERFORMANCE_LATENCY_EFFECTS);
|
|
printf(" -m%d SL_ANDROID_PERFORMANCE_POWER_SAVING\n",
|
|
SL_ANDROID_PERFORMANCE_POWER_SAVING);
|
|
printf(" -x[e][a][n] for pre processing:\n"
|
|
" - e: Echo canceler\n"
|
|
" - a: Automatic Gain Control\n"
|
|
" - n: Noise Suppression\n");
|
|
printf("Example: \"%s /sdcard/myrec.wav\" \n", prog);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
SLEngineOption EngineOption[] = {
|
|
{(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE}
|
|
};
|
|
|
|
result = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL);
|
|
ExitOnError(result);
|
|
|
|
/* Realizing the SL Engine in synchronous mode. */
|
|
result = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
|
|
ExitOnError(result);
|
|
|
|
TestRecToBuffQueue(sl, argv[i], durationInSeconds);
|
|
|
|
/* Shutdown OpenSL ES */
|
|
(*sl)->Destroy(sl);
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|