/**
* Prepare recording. Initialize and acquire recording resources.
*/
static javacall_result init_recording(recorder_handle* hRecord)
{
WAVEFORMATEX format;
/* Setup wave in format */
format.wFormatTag = WAVE_FORMAT_PCM;
format.cbSize = 0;
format.wBitsPerSample = 16;
format.nSamplesPerSec = 22050;
format.nChannels = 1;
format.nAvgBytesPerSec = format.nSamplesPerSec * (format.wBitsPerSample/8);
format.nBlockAlign = format.nChannels;
/* Open WAV in H/W */
if (NULL == hRecord->hWAVEIN) {
MMRESULT mmReturn = 0;
mmReturn = waveInOpen(&hRecord->hWAVEIN, WAVE_MAPPER, &format,
(DWORD)waveInProc, (DWORD)hRecord, CALLBACK_FUNCTION);
if (MMSYSERR_NOERROR != mmReturn) {
hRecord->hWAVEIN = NULL;
return JAVACALL_FAIL;
}
}
/* Create WAV file for (temp) storage */
if (NULL == hRecord->hFile) {
HMMIO hFile;
/* Create temp file? If there is no pre-setted name. */
if (0x0 == hRecord->fileName[0]) {
GetTempPath(MAX_PATH, hRecord->fileName);
GetTempFileName(hRecord->fileName, "record", 0, hRecord->fileName);
}
if (JAVACALL_SUCCEEDED(create_wav_file(hRecord->fileName, &format, &hFile))) {
hRecord->hFile = hFile;
} else {
waveInClose(hRecord->hWAVEIN);
hRecord->hWAVEIN = NULL;
return JAVACALL_FAIL;
}
}
/* Add input buffer */
if (!JAVACALL_SUCCEEDED(add_input_buffer(hRecord, &format))) {
waveInClose(hRecord->hWAVEIN);
close_wav_file(hRecord);
hRecord->hWAVEIN = NULL;
return JAVACALL_FAIL;
}
return JAVACALL_OK;
}
static void winsnd_read_preprocess(MSFilter *f){
WinSnd *d=(WinSnd*)f->data;
MMRESULT mr;
int i;
int bsize;
DWORD dwFlag;
d->stat_input=0;
d->stat_output=0;
d->stat_notplayed=0;
d->stat_minimumbuffer=WINSND_MINIMUMBUFFER;
winsnd_apply_settings(d);
/* Init Microphone device */
dwFlag = CALLBACK_FUNCTION | WAVE_FORMAT_DIRECT;
mr = waveInOpen (&d->indev, d->dev_id, &d->wfx,
(DWORD) read_callback, (DWORD)f, dwFlag);
if (mr != MMSYSERR_NOERROR)
{
ms_error("Failed to prepare windows sound device. (waveInOpen:0x%i)", mr);
if (d->dev_id != WAVE_MAPPER)
dwFlag = WAVE_MAPPED | CALLBACK_FUNCTION;
mr = waveInOpen (&d->indev, d->dev_id, &d->wfx,
(DWORD) read_callback, (DWORD)f, dwFlag);
}
if (mr != MMSYSERR_NOERROR)
{
ms_error("Failed to prepare windows sound device. (waveInOpen:0x%i)", mr);
mr = waveInOpen (&d->indev, WAVE_MAPPER, &d->wfx,
(DWORD) read_callback, (DWORD)f, CALLBACK_FUNCTION);
if (mr != MMSYSERR_NOERROR)
{
d->indev=NULL;
ms_error("Failed to prepare windows sound device. (waveInOpen:0x%i)", mr);
return ;
}
}
bsize=WINSND_NSAMPLES*d->wfx.nAvgBytesPerSec/8000;
ms_debug("Using input buffers of %i bytes",bsize);
for(i=0;i<WINSND_NBUFS;++i){
WAVEHDR *hdr=&d->hdrs_read[i];
add_input_buffer(d,hdr,bsize);
}
d->running=TRUE;
mr=waveInStart(d->indev);
if (mr != MMSYSERR_NOERROR){
ms_error("waveInStart() error");
return ;
}
#ifndef _TRUE_TIME
ms_ticker_set_time_func(f->ticker,winsnd_get_cur_time,d);
#endif
}
static void winsnd_read_process(MSFilter *f){
WinSnd *d=(WinSnd*)f->data;
mblk_t *m;
int i;
ms_mutex_lock(&d->mutex);
while((m=getq(&d->rq))!=NULL){
ms_queue_put(f->outputs[0],m);
}
ms_mutex_unlock(&d->mutex);
for(i=0;i<WINSND_NBUFS;++i){
WAVEHDR *hdr=&d->hdrs_read[i];
if (hdr->dwUser==0) {
MMRESULT mr;
mr=waveInUnprepareHeader(d->indev,hdr,sizeof(*hdr));
if (mr!=MMSYSERR_NOERROR)
ms_warning("winsnd_read_process: Fail to unprepare header!");
add_input_buffer(d,hdr,hdr->dwBufferLength);
}
}
}