14a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/*---------------------------------------------------------------------------* 24a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * AudioHardwareRecord.c * 34a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 44a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Copyright 2007, 2008 Nuance Communciations, Inc. * 54a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 64a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the 'License'); * 74a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * you may not use this file except in compliance with the License. * 84a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 94a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * You may obtain a copy of the License at * 104a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 * 114a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 124a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Unless required by applicable law or agreed to in writing, software * 134a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * distributed under the License is distributed on an 'AS IS' BASIS, * 144a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 154a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * See the License for the specific language governing permissions and * 164a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * limitations under the License. * 174a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 184a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project *---------------------------------------------------------------------------*/ 194a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 204a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <stdlib.h> 214a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <stdio.h> 224a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <limits.h> 234a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <string.h> 244a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include "audioinwrapper.h" 254a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 264a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define SAMPLING_RATE 44100 274a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 284a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_FRAMES_PER_BUFFER 512 /* low-level driver counts in terms of frames, not samples */ 294a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_TUPLES_PER_FRAME 1 /* tuple: a set of samples (set of 1 if mono, set of 2 if stereo */ 304a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 314a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_CHANNELS_PER_TUPLE 1 /* 1: mono; 2: stereo */ 324a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 334a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_TUPLES_PER_BUFFER (N_FRAMES_PER_BUFFER * N_TUPLES_PER_FRAME) 344a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_SAMPLES_PER_BUFFER (N_TUPLES_PER_BUFFER * N_CHANNELS_PER_TUPLE) 354a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 364a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_SECONDS_TO_RECORD 10 374a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define N_SAMPLES_TO_RECORD (SAMPLING_RATE * N_SECONDS_TO_RECORD * N_CHANNELS_PER_TUPLE) 384a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 394a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projecttypedef short typeSample; 404a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 414a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/* store incoming samples here, then write to file at the end */ 424a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source ProjecttypeSample recordedSamples[N_SAMPLES_TO_RECORD]; 434a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 444a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 454a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectint main(int argc, char* argv[]) 464a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project{ 474a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project int rc; 484a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project unsigned int i; 494a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 504a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project memset(recordedSamples, 0, N_SAMPLES_TO_RECORD * sizeof(typeSample)); 514a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 524a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project rc = AudioSetInputFormat(SAMPLING_RATE, N_CHANNELS_PER_TUPLE); 534a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (rc != 0) 544a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 554a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project printf("ERROR: AudioSetInputFormat() returns %d\n", rc); 564a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project exit(1); 574a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 584a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 594a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project rc = AudioOpen(); 604a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (rc < 0) 614a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 624a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project printf("ERROR: AudioOpen() returns %d (device handle/ID)\n", rc); 634a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project exit(1); 644a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 654a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 664a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project i = 0; 674a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project while (i <= N_SAMPLES_TO_RECORD - N_SAMPLES_PER_BUFFER) 684a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 694a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project rc = AudioRead(&(recordedSamples[i]), N_FRAMES_PER_BUFFER); 704a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (rc > 0) 714a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project i += (rc * N_TUPLES_PER_FRAME * N_CHANNELS_PER_TUPLE); 724a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else 734a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project printf("ERROR: AudioRead() returns %d\n", rc); 744a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 754a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 764a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project rc = AudioClose(); 774a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (rc != 0) 784a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 794a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project printf("ERROR: AudioClose() returns %d\n", rc); 804a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project exit(1); 814a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 824a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 834a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* write to file */ 844a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 854a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project FILE *fpOutput; 864a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project char *szFilename = "output_AudioHardwareRecord.pcm"; 874a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 884a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project fpOutput = fopen(szFilename, "wb"); 894a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (fpOutput == NULL) 904a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 914a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project printf("ERROR: cannot create '%s'\n", szFilename); 924a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project exit(1); 934a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 944a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project fwrite(recordedSamples, sizeof(typeSample), i, fpOutput); 954a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project fclose(fpOutput); 964a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 974a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 984a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return 0; 994a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 100