static void writePartToOpenFile (LongSound me, int audioFileType, long imin, long n, MelderFile file, int numberOfChannels_override, int numberOfBitsPerSamplePoint) {
long ibuffer, offset, numberOfBuffers, numberOfSamplesInLastBuffer;
offset = imin;
numberOfBuffers = (n - 1) / my nmax + 1;
numberOfSamplesInLastBuffer = (n - 1) % my nmax + 1;
if (file -> filePointer) for (ibuffer = 1; ibuffer <= numberOfBuffers; ibuffer ++) {
long numberOfSamplesToCopy = ibuffer < numberOfBuffers ? my nmax : numberOfSamplesInLastBuffer;
LongSound_readAudioToShort (me, my buffer, offset, numberOfSamplesToCopy);
offset += numberOfSamplesToCopy;
MelderFile_writeShortToAudio (file, numberOfChannels_override ? numberOfChannels_override : my numberOfChannels, Melder_defaultAudioFileEncoding (audioFileType, numberOfBitsPerSamplePoint), my buffer, numberOfSamplesToCopy);
}
/*
* We "have" no samples any longer.
*/
my imin = 1;
my imax = 0;
}
/*
Precondition: size (my buffer) >= nbuf
*/
static void _LongSound_to_multichannel_buffer (LongSound me, short *buffer, long nbuf,
int nchannels, int ichannel, long ibuf) {
long numberOfReads = (my nx - 1) / nbuf + 1;
long n_to_read = 0;
if (ibuf <= numberOfReads) {
n_to_read = ibuf == numberOfReads ? (my nx - 1) % nbuf + 1 : nbuf;
long imin = (ibuf - 1) * nbuf + 1;
LongSound_readAudioToShort (me, my buffer, imin, n_to_read);
for (long i = 1; i <= n_to_read; i++) {
buffer[nchannels * (i - 1) + ichannel] = my buffer[i];
}
}
if (ibuf >= numberOfReads) {
for (long i = n_to_read + 1; i <= nbuf; i++) {
buffer[nchannels * (i - 1) + ichannel] = 0;
}
}
}
static void _LongSound_readSamples (LongSound me, int16 *buffer, long imin, long imax) {
LongSound_readAudioToShort (me, buffer, imin, imax - imin + 1);
}
