void _af_print_audioformat (AudioFormat *fmt)
{
/* sampleRate, channelCount */
printf("{ %7.2f Hz %d ch ", fmt->sampleRate, fmt->channelCount);
/* sampleFormat, sampleWidth */
switch (fmt->sampleFormat)
{
case AF_SAMPFMT_TWOSCOMP:
printf("%db 2 ", fmt->sampleWidth);
break;
case AF_SAMPFMT_UNSIGNED:
printf("%db u ", fmt->sampleWidth);
break;
case AF_SAMPFMT_FLOAT:
printf("flt ");
break;
case AF_SAMPFMT_DOUBLE:
printf("dbl ");
break;
default:
printf("%dsampfmt? ", fmt->sampleFormat);
}
/* pcm */
printf("(%.30g+-%.30g [%.30g,%.30g]) ",
fmt->pcm.intercept, fmt->pcm.slope,
fmt->pcm.minClip, fmt->pcm.maxClip);
/* byteOrder */
switch (fmt->byteOrder)
{
case AF_BYTEORDER_BIGENDIAN:
printf("big ");
break;
case AF_BYTEORDER_LITTLEENDIAN:
printf("little ");
break;
default:
printf("%dbyteorder? ", fmt->byteOrder);
break;
}
/* compression */
{
int idx = _af_compression_index_from_id(fmt->compressionType);
if (idx < 0)
{
printf("%dcompression?", fmt->compressionType);
}
else if (fmt->compressionType == AF_COMPRESSION_NONE)
printf("pcm");
else
printf("%s", _af_compression[idx].label);
}
printf(" }");
}
static const _CompressionUnit *findCompression (int compressionid)
{
int compressionno;
compressionno = _af_compression_index_from_id(compressionid);
if (compressionno != -1)
return &_af_compression[compressionno];
return NULL;
}
float _af_format_frame_size (_AudioFormat *fmt, bool stretch3to4)
{
int compressionIndex;
float squishFactor;
compressionIndex = _af_compression_index_from_id(fmt->compressionType);
squishFactor = _af_compression[compressionIndex].squishFactor;
return _af_format_frame_size_uncompressed(fmt, stretch3to4) /
squishFactor;
}
