static int
caf_read_header (SF_PRIVATE *psf)
{ CAF_PRIVATE *pcaf ;
BUF_UNION ubuf ;
DESC_CHUNK desc ;
sf_count_t chunk_size ;
double srate ;
short version, flags ;
int marker, k, have_data = 0, error ;
if ((pcaf = psf->container_data) == NULL)
return SFE_INTERNAL ;
memset (&desc, 0, sizeof (desc)) ;
/* Set position to start of file to begin reading header. */
psf_binheader_readf (psf, "pmE2E2", 0, &marker, &version, &flags) ;
psf_log_printf (psf, "%M\n Version : %d\n Flags : %x\n", marker, version, flags) ;
if (marker != caff_MARKER)
return SFE_CAF_NOT_CAF ;
psf_binheader_readf (psf, "mE8b", &marker, &chunk_size, ubuf.ucbuf, 8) ;
srate = double64_be_read (ubuf.ucbuf) ;
snprintf (ubuf.cbuf, sizeof (ubuf.cbuf), "%5.3f", srate) ;
psf_log_printf (psf, "%M : %D\n Sample rate : %s\n", marker, chunk_size, ubuf.cbuf) ;
if (marker != desc_MARKER)
return SFE_CAF_NO_DESC ;
if (chunk_size < SIGNED_SIZEOF (DESC_CHUNK))
{ psf_log_printf (psf, "**** Chunk size too small. Should be > 32 bytes.\n") ;
return SFE_MALFORMED_FILE ;
} ;
psf->sf.samplerate = lrint (srate) ;
psf_binheader_readf (psf, "mE44444", &desc.fmt_id, &desc.fmt_flags, &desc.pkt_bytes, &desc.frames_per_packet,
&desc.channels_per_frame, &desc.bits_per_chan) ;
psf_log_printf (psf, " Format id : %M\n Format flags : %x\n Bytes / packet : %u\n"
" Frames / packet : %u\n Channels / frame : %u\n Bits / channel : %u\n",
desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.frames_per_packet, desc.channels_per_frame, desc.bits_per_chan) ;
if (desc.channels_per_frame > SF_MAX_CHANNELS)
{ psf_log_printf (psf, "**** Bad channels per frame value %u.\n", desc.channels_per_frame) ;
return SFE_MALFORMED_FILE ;
} ;
if (chunk_size > SIGNED_SIZEOF (DESC_CHUNK))
psf_binheader_readf (psf, "j", (int) (chunk_size - sizeof (DESC_CHUNK))) ;
psf->sf.channels = desc.channels_per_frame ;
while (1)
{ marker = 0 ;
chunk_size = 0 ;
psf_binheader_readf (psf, "mE8", &marker, &chunk_size) ;
if (marker == 0)
{ sf_count_t pos = psf_ftell (psf) ;
psf_log_printf (psf, "Have 0 marker at position %D (0x%x).\n", pos, pos) ;
break ;
} ;
if (chunk_size < 0)
{ psf_log_printf (psf, "%M : %D *** Should be >= 0 ***\n", marker, chunk_size) ;
break ;
} ;
psf_store_read_chunk_u32 (&psf->rchunks, marker, psf_ftell (psf), chunk_size) ;
switch (marker)
{ case peak_MARKER :
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
if (chunk_size != CAF_PEAK_CHUNK_SIZE (psf->sf.channels))
{ psf_binheader_readf (psf, "j", make_size_t (chunk_size)) ;
psf_log_printf (psf, "*** File PEAK chunk %D should be %d.\n", chunk_size, CAF_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
return SFE_CAF_BAD_PEAK ;
} ;
if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
return SFE_MALLOC_FAILED ;
/* read in rest of PEAK chunk. */
psf_binheader_readf (psf, "E4", & (psf->peak_info->edit_number)) ;
psf_log_printf (psf, " edit count : %d\n", psf->peak_info->edit_number) ;
psf_log_printf (psf, " Ch Position Value\n") ;
for (k = 0 ; k < psf->sf.channels ; k++)
{ sf_count_t position ;
float value ;
psf_binheader_readf (psf, "Ef8", &value, &position) ;
psf->peak_info->peaks [k].value = value ;
psf->peak_info->peaks [k].position = position ;
snprintf (ubuf.cbuf, sizeof (ubuf.cbuf), " %2d %-12" PRId64 " %g\n", k, position, value) ;
psf_log_printf (psf, ubuf.cbuf) ;
} ;
psf->peak_info->peak_loc = SF_PEAK_START ;
break ;
case chan_MARKER :
if (chunk_size < 12)
{ psf_log_printf (psf, "%M : %D (should be >= 12)\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", make_size_t (chunk_size)) ;
break ;
}
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
if ((error = caf_read_chanmap (psf, chunk_size)))
return error ;
break ;
case free_MARKER :
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", make_size_t (chunk_size)) ;
break ;
case data_MARKER :
psf_binheader_readf (psf, "E4", &k) ;
if (chunk_size == -1)
{ psf_log_printf (psf, "%M : -1\n") ;
chunk_size = psf->filelength - psf->headindex ;
}
else if (psf->filelength > 0 && chunk_size > psf->filelength - psf->headindex + 10)
{ psf_log_printf (psf, "%M : %D (should be %D)\n", marker, chunk_size, psf->filelength - psf->headindex - 8) ;
psf->datalength = psf->filelength - psf->headindex - 8 ;
}
else
{ psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
/* Subtract the 4 bytes of the 'edit' field above. */
psf->datalength = chunk_size - 4 ;
} ;
psf_log_printf (psf, " edit : %u\n", k) ;
psf->dataoffset = psf->headindex ;
if (psf->datalength + psf->dataoffset < psf->filelength)
psf->dataend = psf->datalength + psf->dataoffset ;
psf_binheader_readf (psf, "j", make_size_t (psf->datalength)) ;
have_data = 1 ;
break ;
case kuki_MARKER :
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
pcaf->alac.kuki_offset = psf_ftell (psf) - 12 ;
psf_binheader_readf (psf, "j", make_size_t (chunk_size)) ;
break ;
case pakt_MARKER :
if (chunk_size < 24)
{ psf_log_printf (psf, "%M : %D (should be > 24)\n", marker, chunk_size) ;
return SFE_MALFORMED_FILE ;
}
else if (chunk_size > psf->filelength - psf->headindex)
{ psf_log_printf (psf, "%M : %D (should be < %D)\n", marker, chunk_size, psf->filelength - psf->headindex) ;
return SFE_MALFORMED_FILE ;
}
else
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
psf_binheader_readf (psf, "E8844", &pcaf->alac.packets, &pcaf->alac.valid_frames,
&pcaf->alac.priming_frames, &pcaf->alac.remainder_frames) ;
psf_log_printf (psf,
" Packets : %D\n"
" Valid frames : %D\n"
" Priming frames : %d\n"
" Remainder frames : %d\n",
pcaf->alac.packets, pcaf->alac.valid_frames, pcaf->alac.priming_frames,
pcaf->alac.remainder_frames
) ;
if (pcaf->alac.packets == 0 && pcaf->alac.valid_frames == 0
&& pcaf->alac.priming_frames == 0 && pcaf->alac.remainder_frames == 0)
psf_log_printf (psf, "*** 'pakt' chunk header is all zero.\n") ;
pcaf->alac.pakt_offset = psf_ftell (psf) - 12 ;
psf_binheader_readf (psf, "j", make_size_t (chunk_size) - 24) ;
break ;
case info_MARKER :
if (chunk_size < 4)
{ psf_log_printf (psf, "%M : %D (should be > 4)\n", marker, chunk_size) ;
return SFE_MALFORMED_FILE ;
}
else if (chunk_size > psf->filelength - psf->headindex)
{ psf_log_printf (psf, "%M : %D (should be < %D)\n", marker, chunk_size, psf->filelength - psf->headindex) ;
return SFE_MALFORMED_FILE ;
} ;
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
caf_read_strings (psf, chunk_size) ;
break ;
default :
psf_log_printf (psf, "%M : %D (skipped)\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", make_size_t (chunk_size)) ;
break ;
} ;
if (marker != data_MARKER && chunk_size >= 0xffffff00)
break ;
if (! psf->sf.seekable && have_data)
break ;
if (psf_ftell (psf) >= psf->filelength - SIGNED_SIZEOF (chunk_size))
{ psf_log_printf (psf, "End\n") ;
break ;
} ;
} ;
if (have_data == 0)
{ psf_log_printf (psf, "**** Error, could not find 'data' chunk.\n") ;
return SFE_MALFORMED_FILE ;
} ;
psf->endian = (desc.fmt_flags & 2) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
psf_fseek (psf, psf->dataoffset, SEEK_SET) ;
if ((psf->sf.format = decode_desc_chunk (psf, &desc)) == 0)
return SFE_UNSUPPORTED_ENCODING ;
if (psf->bytewidth > 0)
psf->sf.frames = psf->datalength / psf->bytewidth ;
return 0 ;
} /* caf_read_header */
static int
caf_read_header (SF_PRIVATE *psf)
{ DESC_CHUNK desc ;
sf_count_t chunk_size ;
double srate ;
short version, flags ;
int marker, k, have_data = 0, error ;
memset (&desc, 0, sizeof (desc)) ;
/* Set position to start of file to begin reading header. */
psf_binheader_readf (psf, "pmE2E2", 0, &marker, &version, &flags) ;
psf_log_printf (psf, "%M\n Version : %d\n Flags : %x\n", marker, version, flags) ;
if (marker != caff_MARKER)
return SFE_CAF_NOT_CAF ;
psf_binheader_readf (psf, "mE8b", &marker, &chunk_size, psf->u.ucbuf, 8) ;
srate = double64_be_read (psf->u.ucbuf) ;
snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), "%5.3f", srate) ;
psf_log_printf (psf, "%M : %D\n Sample rate : %s\n", marker, chunk_size, psf->u.cbuf) ;
if (marker != desc_MARKER)
return SFE_CAF_NO_DESC ;
if (chunk_size < SIGNED_SIZEOF (DESC_CHUNK))
{ psf_log_printf (psf, "**** Chunk size too small. Should be > 32 bytes.\n") ;
return SFE_MALFORMED_FILE ;
} ;
psf->sf.samplerate = lrint (srate) ;
psf_binheader_readf (psf, "mE44444", &desc.fmt_id, &desc.fmt_flags, &desc.pkt_bytes, &desc.pkt_frames,
&desc.channels_per_frame, &desc.bits_per_chan) ;
psf_log_printf (psf, " Format id : %M\n Format flags : %x\n Bytes / packet : %u\n"
" Frames / packet : %u\n Channels / frame : %u\n Bits / channel : %u\n",
desc.fmt_id, desc.fmt_flags, desc.pkt_bytes, desc.pkt_frames, desc.channels_per_frame, desc.bits_per_chan) ;
if (desc.channels_per_frame > SF_MAX_CHANNELS)
{ psf_log_printf (psf, "**** Bad channels per frame value %u.\n", desc.channels_per_frame) ;
return SFE_MALFORMED_FILE ;
} ;
if (chunk_size > SIGNED_SIZEOF (DESC_CHUNK))
psf_binheader_readf (psf, "j", (int) (chunk_size - sizeof (DESC_CHUNK))) ;
psf->sf.channels = desc.channels_per_frame ;
while (have_data == 0 && psf_ftell (psf) < psf->filelength - SIGNED_SIZEOF (marker))
{ psf_binheader_readf (psf, "mE8", &marker, &chunk_size) ;
switch (marker)
{
case peak_MARKER :
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
if (chunk_size != CAF_PEAK_CHUNK_SIZE (psf->sf.channels))
{ psf_binheader_readf (psf, "j", (int) chunk_size) ;
psf_log_printf (psf, "*** File PEAK chunk %D should be %d.\n", chunk_size, CAF_PEAK_CHUNK_SIZE (psf->sf.channels)) ;
return SFE_CAF_BAD_PEAK ;
} ;
if ((psf->peak_info = peak_info_calloc (psf->sf.channels)) == NULL)
return SFE_MALLOC_FAILED ;
/* read in rest of PEAK chunk. */
psf_binheader_readf (psf, "E4", & (psf->peak_info->edit_number)) ;
psf_log_printf (psf, " edit count : %d\n", psf->peak_info->edit_number) ;
psf_log_printf (psf, " Ch Position Value\n") ;
for (k = 0 ; k < psf->sf.channels ; k++)
{ sf_count_t position ;
float value ;
psf_binheader_readf (psf, "Ef8", &value, &position) ;
psf->peak_info->peaks [k].value = value ;
psf->peak_info->peaks [k].position = position ;
snprintf (psf->u.cbuf, sizeof (psf->u.cbuf), " %2d %-12" PRId64 " %g\n", k, position, value) ;
psf_log_printf (psf, psf->u.cbuf) ;
} ;
psf->peak_info->peak_loc = SF_PEAK_START ;
break ;
case chan_MARKER :
if (chunk_size < 12)
{ psf_log_printf (psf, "%M : %D (should be >= 12)\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", (int) chunk_size) ;
break ;
}
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
if ((error = caf_read_chanmap (psf, chunk_size)))
return error ;
break ;
case free_MARKER :
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", (int) chunk_size) ;
break ;
case data_MARKER :
psf_log_printf (psf, "%M : %D\n", marker, chunk_size) ;
psf_binheader_readf (psf, "E4", &k) ;
psf_log_printf (psf, " edit : %u\n", k) ;
have_data = 1 ;
break ;
default :
psf_log_printf (psf, " %M : %D (skipped)\n", marker, chunk_size) ;
psf_binheader_readf (psf, "j", (int) chunk_size) ;
break ;
} ;
} ;
if (have_data == 0)
{ psf_log_printf (psf, "**** Error, could not find 'data' chunk.\n") ;
return SFE_MALFORMED_FILE ;
} ;
psf_log_printf (psf, "End\n") ;
psf->dataoffset = psf_ftell (psf) ;
psf->datalength = psf->filelength - psf->dataoffset ;
psf->endian = (desc.fmt_flags & 2) ? SF_ENDIAN_LITTLE : SF_ENDIAN_BIG ;
if ((psf->sf.format = decode_desc_chunk (psf, &desc)) == 0)
return SFE_UNSUPPORTED_ENCODING ;
if (psf->bytewidth > 0)
psf->sf.frames = psf->datalength / psf->bytewidth ;
return 0 ;
} /* caf_read_header */
