static status next_write_header (AFfilehandle file)
{
_Track *track;
int frameSize;
uint32_t offset, length, encoding, sampleRate, channelCount;
track = _af_filehandle_get_track(file, AF_DEFAULT_TRACK);
frameSize = _af_format_frame_size(&track->f, false);
offset = track->fpos_first_frame;
length = track->totalfframes * frameSize;
encoding = nextencodingtype(&track->f);
sampleRate = track->f.sampleRate;
channelCount = track->f.channelCount;
if (af_fseek(file->fh, 0, SEEK_SET) != 0)
_af_error(AF_BAD_LSEEK, "bad seek");
af_fwrite(".snd", 4, 1, file->fh);
af_write_uint32_be(&offset, file->fh);
af_write_uint32_be(&length, file->fh);
af_write_uint32_be(&encoding, file->fh);
af_write_uint32_be(&sampleRate, file->fh);
af_write_uint32_be(&channelCount, file->fh);
return AF_SUCCEED;
}
static status next_write_header (AFfilehandle file)
{
_Track *track;
int frameSize;
u_int32_t offset, length, encoding, sampleRate, channelCount;
track = _af_filehandle_get_track(file, AF_DEFAULT_TRACK);
frameSize = _af_format_frame_size(&track->f, AF_FALSE);
if (track->f.compressionType == AF_COMPRESSION_G711_ULAW ||
track->f.compressionType == AF_COMPRESSION_G711_ALAW)
frameSize = frameSize / 2;
offset = HOST_TO_BENDIAN_INT32(track->fpos_first_frame);
length = HOST_TO_BENDIAN_INT32(track->totalfframes * frameSize);
encoding = HOST_TO_BENDIAN_INT32(nextencodingtype(&track->f));
sampleRate = HOST_TO_BENDIAN_INT32(track->f.sampleRate);
channelCount = HOST_TO_BENDIAN_INT32(track->f.channelCount);
if (af_fseek(file->fh, 0, SEEK_SET) != 0)
_af_error(AF_BAD_LSEEK, "bad seek");
af_fwrite(".snd", 4, 1, file->fh);
af_fwrite(&offset, 4, 1, file->fh);
af_fwrite(&length, 4, 1, file->fh);
af_fwrite(&encoding, 4, 1, file->fh);
af_fwrite(&sampleRate, 4, 1, file->fh);
af_fwrite(&channelCount, 4, 1, file->fh);
return AF_SUCCEED;
}
status NeXTFile::writeHeader()
{
Track *track = getTrack();
if (fh->seek(0, File::SeekFromBeginning) != 0)
_af_error(AF_BAD_LSEEK, "bad seek");
uint32_t offset = track->fpos_first_frame;
uint32_t length = track->data_size;
uint32_t encoding = nextencodingtype(&track->f);
uint32_t sampleRate = track->f.sampleRate;
uint32_t channelCount = track->f.channelCount;
fh->write(".snd", 4);
writeU32(&offset);
writeU32(&length);
writeU32(&encoding);
writeU32(&sampleRate);
writeU32(&channelCount);
return AF_SUCCEED;
}
