void alsa_read_process(MSFilter *obj){
AlsaReadData *ad=(AlsaReadData*)obj->data;
int samples=(128*ad->rate)/8000;
int err;
mblk_t *om=NULL;
if (ad->handle==NULL && ad->pcmdev!=NULL && !ad->read_started){
ad->read_started=TRUE;
ad->handle=alsa_open_r(ad->pcmdev,16,ad->nchannels==2,ad->rate);
if (ad->handle){
ad->read_samples=0;
ms_ticker_set_time_func(obj->ticker,(uint64_t (*)(void*))ms_ticker_synchronizer_get_corrected_time, ad->ticker_synchronizer);
}
}
if (ad->handle==NULL) return;
while (alsa_can_read(ad->handle)>=samples){
int size=samples*2*ad->nchannels;
om=allocb(size,0);
if ((err=alsa_read(ad->handle,om->b_wptr,samples))<=0) {
ms_warning("Fail to read samples");
freemsg(om);
return;
}
ad->read_samples+=err;
size=err*2*ad->nchannels;
om->b_wptr+=size;
compute_timespec(ad);
/*ms_message("alsa_read_process: Outputing %i bytes",size);*/
ms_queue_put(obj->outputs[0],om);
}
}
static void* msandroid_read_cb(msandroid_sound_read_data* d) {
mblk_t *m;
int nread;
jmethodID read_id=0;
jmethodID record_id=0;
set_high_prio();
//JNIEnv *jni_env = ms_get_jni_env();
JNIEnv *jni_env = NULL;
JavaVM *jvm = ms_get_jvm();
if (jvm->AttachCurrentThread(&jni_env, NULL)!=0) {
ms_fatal("AttachCurrentThread() failed !");
goto end;
}
record_id = jni_env->GetMethodID(d->audio_record_class,"startRecording", "()V");
if(record_id==0) {
ms_error("cannot find AudioRecord.startRecording() method");
goto end;
}
//start recording
ms_message("Start recording");
jni_env->CallVoidMethod(d->audio_record,record_id);
// int read (byte[] audioData, int offsetInBytes, int sizeInBytes)
read_id = jni_env->GetMethodID(d->audio_record_class,"read", "([BII)I");
if(read_id==0) {
ms_error("cannot find AudioRecord.read() method");
goto end;
}
while (d->started && (nread=jni_env->CallIntMethod(d->audio_record,read_id,d->read_buff,0, d->read_chunk_size))>0) {
m = allocb(nread,0);
jni_env->GetByteArrayRegion(d->read_buff, 0,nread, (jbyte*)m->b_wptr);
//ms_error("%i octets read",nread);
m->b_wptr += nread;
d->read_samples+=nread/(2*d->nchannels);
compute_timespec(d);
ms_mutex_lock(&d->mutex);
ms_bufferizer_put (&d->rb,m);
ms_mutex_unlock(&d->mutex);
};
goto end;
end: {
jvm->DetachCurrentThread();
ms_thread_exit(NULL);
return 0;
}
}