// ----------------------------------------------------------------------------
static int
android_media_AudioRecord_setup(JNIEnv *env, jobject thiz, jobject weak_this,
jint source, jint sampleRateInHertz, jint channels,
jint audioFormat, jint buffSizeInBytes, jintArray jSession)
{
//LOGV(">> Entering android_media_AudioRecord_setup");
//LOGV("sampleRate=%d, audioFormat=%d, channels=%x, buffSizeInBytes=%d",
// sampleRateInHertz, audioFormat, channels, buffSizeInBytes);
if (!audio_is_input_channel(channels)) {
LOGE("Error creating AudioRecord: channel count is not 1 or 2.");
return AUDIORECORD_ERROR_SETUP_INVALIDCHANNELMASK;
}
uint32_t nbChannels = popcount(channels);
// compare the format against the Java constants
if ((audioFormat != javaAudioRecordFields.PCM16)
&& (audioFormat != javaAudioRecordFields.PCM8)) {
LOGE("Error creating AudioRecord: unsupported audio format.");
return AUDIORECORD_ERROR_SETUP_INVALIDFORMAT;
}
int bytesPerSample = audioFormat==javaAudioRecordFields.PCM16 ? 2 : 1;
int format = audioFormat==javaAudioRecordFields.PCM16 ?
AUDIO_FORMAT_PCM_16_BIT : AUDIO_FORMAT_PCM_8_BIT;
if (buffSizeInBytes == 0) {
LOGE("Error creating AudioRecord: frameCount is 0.");
return AUDIORECORD_ERROR_SETUP_ZEROFRAMECOUNT;
}
int frameSize = nbChannels * bytesPerSample;
size_t frameCount = buffSizeInBytes / frameSize;
if (source >= AUDIO_SOURCE_CNT) {
LOGE("Error creating AudioRecord: unknown source.");
return AUDIORECORD_ERROR_SETUP_INVALIDSOURCE;
}
if (jSession == NULL) {
LOGE("Error creating AudioRecord: invalid session ID pointer");
return AUDIORECORD_ERROR;
}
jint* nSession = (jint *) env->GetPrimitiveArrayCritical(jSession, NULL);
if (nSession == NULL) {
LOGE("Error creating AudioRecord: Error retrieving session id pointer");
return AUDIORECORD_ERROR;
}
int sessionId = nSession[0];
env->ReleasePrimitiveArrayCritical(jSession, nSession, 0);
nSession = NULL;
audiorecord_callback_cookie *lpCallbackData = NULL;
AudioRecord* lpRecorder = NULL;
// create an uninitialized AudioRecord object
lpRecorder = new AudioRecord();
if(lpRecorder == NULL) {
LOGE("Error creating AudioRecord instance.");
return AUDIORECORD_ERROR_SETUP_NATIVEINITFAILED;
}
// create the callback information:
// this data will be passed with every AudioRecord callback
jclass clazz = env->GetObjectClass(thiz);
if (clazz == NULL) {
LOGE("Can't find %s when setting up callback.", kClassPathName);
goto native_track_failure;
}
lpCallbackData = new audiorecord_callback_cookie;
lpCallbackData->audioRecord_class = (jclass)env->NewGlobalRef(clazz);
// we use a weak reference so the AudioRecord object can be garbage collected.
lpCallbackData->audioRecord_ref = env->NewGlobalRef(weak_this);
lpRecorder->set(source,
sampleRateInHertz,
format, // word length, PCM
channels,
frameCount,
0, // flags
recorderCallback,// callback_t
lpCallbackData,// void* user
0, // notificationFrames,
true, // threadCanCallJava)
sessionId);
if(lpRecorder->initCheck() != NO_ERROR) {
LOGE("Error creating AudioRecord instance: initialization check failed.");
goto native_init_failure;
}
nSession = (jint *) env->GetPrimitiveArrayCritical(jSession, NULL);
if (nSession == NULL) {
LOGE("Error creating AudioRecord: Error retrieving session id pointer");
goto native_init_failure;
}
// read the audio session ID back from AudioTrack in case a new session was created during set()
nSession[0] = lpRecorder->getSessionId();
env->ReleasePrimitiveArrayCritical(jSession, nSession, 0);
nSession = NULL;
// save our newly created C++ AudioRecord in the "nativeRecorderInJavaObj" field
// of the Java object
env->SetIntField(thiz, javaAudioRecordFields.nativeRecorderInJavaObj, (int)lpRecorder);
// save our newly created callback information in the "nativeCallbackCookie" field
// of the Java object (in mNativeCallbackCookie) so we can free the memory in finalize()
env->SetIntField(thiz, javaAudioRecordFields.nativeCallbackCookie, (int)lpCallbackData);
return AUDIORECORD_SUCCESS;
// failure:
native_init_failure:
env->DeleteGlobalRef(lpCallbackData->audioRecord_class);
env->DeleteGlobalRef(lpCallbackData->audioRecord_ref);
delete lpCallbackData;
native_track_failure:
delete lpRecorder;
env->SetIntField(thiz, javaAudioRecordFields.nativeRecorderInJavaObj, 0);
env->SetIntField(thiz, javaAudioRecordFields.nativeCallbackCookie, 0);
return AUDIORECORD_ERROR_SETUP_NATIVEINITFAILED;
}
// ----------------------------------------------------------------------------
static int
android_media_AudioRecord_setup(JNIEnv *env, jobject thiz, jobject weak_this,
jint source, jint sampleRateInHertz, jint nbChannels,
jint audioFormat, jint buffSizeInBytes)
{
//LOGV(">> Entering android_media_AudioRecord_setup");
//LOGV("sampleRate=%d, audioFormat=%d, nbChannels=%d, buffSizeInBytes=%d",
// sampleRateInHertz, audioFormat, nbChannels, buffSizeInBytes);
if ((nbChannels == 0) || (nbChannels > 2)) {
LOGE("Error creating AudioRecord: channel count is not 1 or 2.");
return AUDIORECORD_ERROR_SETUP_INVALIDCHANNELCOUNT;
}
// compare the format against the Java constants
if ((audioFormat != javaAudioRecordFields.PCM16)
&& (audioFormat != javaAudioRecordFields.PCM8)) {
LOGE("Error creating AudioRecord: unsupported audio format.");
return AUDIORECORD_ERROR_SETUP_INVALIDFORMAT;
}
int bytesPerSample = audioFormat==javaAudioRecordFields.PCM16 ? 2 : 1;
int format = audioFormat==javaAudioRecordFields.PCM16 ?
AudioSystem::PCM_16_BIT : AudioSystem::PCM_8_BIT;
if (buffSizeInBytes == 0) {
LOGE("Error creating AudioRecord: frameCount is 0.");
return AUDIORECORD_ERROR_SETUP_ZEROFRAMECOUNT;
}
int frameSize = nbChannels * bytesPerSample;
size_t frameCount = buffSizeInBytes / frameSize;
// compare the source against the Java constants
AudioRecord::stream_type arSource;
if (source == javaAudioRecordFields.SOURCE_DEFAULT) {
arSource = AudioRecord::DEFAULT_INPUT;
} else if (source == javaAudioRecordFields.SOURCE_MIC) {
arSource = AudioRecord::MIC_INPUT;
} else {
LOGE("Error creating AudioRecord: unknown source.");
return AUDIORECORD_ERROR_SETUP_INVALIDSTREAMTYPE;
}
audiorecord_callback_cookie *lpCallbackData = NULL;
AudioRecord* lpRecorder = NULL;
// create an uninitialized AudioRecord object
lpRecorder = new AudioRecord();
if(lpRecorder == NULL) {
LOGE("Error creating AudioRecord instance.");
return AUDIORECORD_ERROR_SETUP_NATIVEINITFAILED;
}
// create the callback information:
// this data will be passed with every AudioRecord callback
jclass clazz = env->GetObjectClass(thiz);
if (clazz == NULL) {
LOGE("Can't find %s when setting up callback.", kClassPathName);
goto native_track_failure;
}
lpCallbackData = new audiorecord_callback_cookie;
lpCallbackData->audioRecord_class = (jclass)env->NewGlobalRef(clazz);
// we use a weak reference so the AudioRecord object can be garbage collected.
lpCallbackData->audioRecord_ref = env->NewGlobalRef(weak_this);
lpRecorder->set(arSource,
sampleRateInHertz,
format, // word length, PCM
nbChannels,
frameCount,
0, // flags
recorderCallback,// callback_t
lpCallbackData,// void* user
0, // notificationFrames,
true); // threadCanCallJava)
if(lpRecorder->initCheck() != NO_ERROR) {
LOGE("Error creating AudioRecord instance: initialization check failed.");
goto native_init_failure;
}
// save our newly created C++ AudioRecord in the "nativeRecorderInJavaObj" field
// of the Java object
env->SetIntField(thiz, javaAudioRecordFields.nativeRecorderInJavaObj, (int)lpRecorder);
// save our newly created callback information in the "nativeCallbackCookie" field
// of the Java object (in mNativeCallbackCookie) so we can free the memory in finalize()
env->SetIntField(thiz, javaAudioRecordFields.nativeCallbackCookie, (int)lpCallbackData);
return AUDIORECORD_SUCCESS;
// failure:
native_init_failure:
delete lpCallbackData;
native_track_failure:
delete lpRecorder;
env->SetIntField(thiz, javaAudioRecordFields.nativeRecorderInJavaObj, 0);
env->SetIntField(thiz, javaAudioRecordFields.nativeCallbackCookie, 0);
return AUDIORECORD_ERROR_SETUP_NATIVEINITFAILED;
}