/**
* 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;
}
std::shared_ptr<cainteoir::audio>
cainteoir::create_audio_file(
const char *filename,
const char *type,
float quality,
const rdf::graph &aDocMetadata,
const rdf::uri &aDocument,
const rdf::uri &aFormat,
int aChannels,
int aFrequency)
{
if (filename && !strcmp(filename, "-"))
filename = nullptr;
if (!strcmp(type, "wav"))
return create_wav_file(filename, aFormat, aChannels, aFrequency, quality, aDocMetadata, aDocument);
if (!strcmp(type, "ogg"))
return create_ogg_file(filename, aFormat, aChannels, aFrequency, quality, aDocMetadata, aDocument);
return std::shared_ptr<cainteoir::audio>();
}
