android_speech_srec_MicrophoneInputStream.cpp revision 570be96f35b570ee31c86a602cc6c050e03a1f3d
14a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/*---------------------------------------------------------------------------* 24a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * android_speech_srec_MicrophoneInputStream.cpp * 34a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 44a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Copyright 2007 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 214a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <string.h> 224a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <stdio.h> 234a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <stdlib.h> 244a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 254a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define LOG_TAG "srec_jni" 264a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <utils/Log.h> 274a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 284a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <media/AudioRecord.h> 2985d4a2a8fe7c306f0e0cfd30f51e9015566c021dEric Laurent#include <media/mediarecorder.h> 304a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 31570be96f35b570ee31c86a602cc6c050e03a1f3dDima Zavin#include <system/audio.h> 321b229941e91e25f6fa787b20cd6f53c818b2eb7fDima Zavin 334a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <jni.h> 344a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 354a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectusing namespace android; 364a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 374a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 384a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 394a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// 404a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// helper function to throw an exception 414a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// 424a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic void throwException(JNIEnv *env, const char* ex, const char* fmt, int data) { 434a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (jclass cls = env->FindClass(ex)) { 444a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project char msg[1000]; 454a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project sprintf(msg, fmt, data); 464a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project env->ThrowNew(cls, msg); 474a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project env->DeleteLocalRef(cls); 484a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 494a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 504a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 514a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 524a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 534a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project// MicrophoneInputStream JNI implememtations 544a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/////////////////////////////////////////////////////////////////////////////// 554a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 564a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic JNIEXPORT jint JNICALL Java_android_speech_srec_Recognizer_AudioRecordNew 574a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project (JNIEnv *env, jclass clazz, jint sampleRate, jint fifoFrames) { 584a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 594a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project android::AudioRecord* ar = new android::AudioRecord( 601b229941e91e25f6fa787b20cd6f53c818b2eb7fDima Zavin AUDIO_SOURCE_VOICE_RECOGNITION, sampleRate, 611b229941e91e25f6fa787b20cd6f53c818b2eb7fDima Zavin AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_MONO, 624a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project fifoFrames, 0); 634a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (ar == NULL) { 644a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project LOGE("Error creating AudioRecord"); 654a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 664a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else { 674a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project status_t s = ar->initCheck(); 684a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (s != NO_ERROR) { 694a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project delete ar; 704a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project ar = NULL; 714a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project LOGE("initCheck error %d ", s); 724a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 734a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 744a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return (int)ar; 754a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 764a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 774a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic JNIEXPORT int JNICALL Java_android_speech_srec_Recognizer_AudioRecordStart 784a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project (JNIEnv *env, jclass clazz, jint audioRecord) { 794a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return (int)(((AudioRecord*)audioRecord)->start()); 804a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 814a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 824a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic JNIEXPORT jint JNICALL Java_android_speech_srec_Recognizer_AudioRecordRead 834a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project (JNIEnv *env, jclass clazz, jint audioRecord, jbyteArray array, jint offset, jint length) { 844a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project jbyte buffer[4096]; 854a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (length > (int)sizeof(buffer)) length = sizeof(buffer); 864a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project length = ((AudioRecord*)audioRecord)->read(buffer, length); 874a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (length < 0) { 884a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project throwException(env, "java/io/IOException", "AudioRecord::read failed %d", length); 894a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return -1; 904a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 914a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project env->SetByteArrayRegion(array, offset, length, buffer); 924a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return length; 934a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 944a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 954a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic JNIEXPORT void JNICALL Java_android_speech_srec_Recognizer_AudioRecordStop 964a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project (JNIEnv *env, jclass clazz, jint audioRecord) { 974a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (int rtn = ((AudioRecord*)audioRecord)->stop()) { 984a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project throwException(env, "java/io/IOException", "AudioRecord::stop failed %d", rtn); 994a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 1004a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 1014a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1024a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic JNIEXPORT void JNICALL Java_android_speech_srec_Recognizer_AudioRecordDelete 1034a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project (JNIEnv *env, jclass clazz, jint audioRecord) { 1044a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project delete (AudioRecord*)audioRecord; 1054a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 1064a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1074a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1084a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/* 1094a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Table of methods associated with a single class. 1104a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 1114a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic JNINativeMethod gMethods[] = { 1124a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* name, signature, funcPtr */ 1134a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project {"AudioRecordNew", "(II)I", (void*)Java_android_speech_srec_Recognizer_AudioRecordNew}, 1144a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project {"AudioRecordStart", "(I)I", (void*)Java_android_speech_srec_Recognizer_AudioRecordStart}, 1154a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project {"AudioRecordRead", "(I[BII)I", (void*)Java_android_speech_srec_Recognizer_AudioRecordRead}, 1164a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project {"AudioRecordStop", "(I)V", (void*)Java_android_speech_srec_Recognizer_AudioRecordStop}, 1174a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project {"AudioRecordDelete", "(I)V", (void*)Java_android_speech_srec_Recognizer_AudioRecordDelete}, 1184a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project}; 1194a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1204a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/* 1214a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Set some test stuff up. 1224a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * 1234a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Returns the JNI version on success, -1 on failure. 1244a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 1254a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectjint register_android_speech_srec_MicrophoneInputStream(JavaVM* vm, void* reserved) 1264a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project{ 1274a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project JNIEnv* env = NULL; 1284a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project jclass clazz = NULL; 1294a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project const char* className = "android/speech/srec/MicrophoneInputStream"; 1304a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1314a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) { 1324a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project LOGE("ERROR: GetEnv failed\n"); 1334a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return -1; 1344a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 1354a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project assert(env != NULL); 1364a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1374a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project clazz = env->FindClass(className); 1384a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (clazz == NULL) { 1394a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project LOGE("Native registration unable to find class '%s'\n", className); 1404a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return -1; 1414a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 1424a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (env->RegisterNatives(clazz, gMethods, 1434a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project sizeof(gMethods) / sizeof(gMethods[0])) < 0) { 1444a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project LOGE("RegisterNatives failed for '%s'\n", className); 1454a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return -1; 1464a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 1474a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1484a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* success -- return valid version number */ 1494a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return JNI_VERSION_1_4;; 1504a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 151