vgmstream/src/meta/pc_snds.c
halleyscometsw 01fee18e48 detect padding at end of pc_snds
git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@915 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
2011-02-06 22:03:21 +00:00

64 lines
1.7 KiB
C

#include "meta.h"
#include "../util.h"
/* .snds - from Incredibles PC */
VGMSTREAM * init_vgmstream_pc_snds(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
size_t file_size;
int i;
/* check extension, case insensitive */
/* this is all we have to go on, snds is completely headerless */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("snds",filename_extension(filename))) goto fail;
file_size = get_streamfile_size(streamFile);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(2,0);
if (!vgmstream) goto fail;
vgmstream->sample_rate = 48000;
/* file seems to be mistakenly 1/8 too long */
vgmstream->num_samples = file_size*8/9;
/* check for 32 0 bytes where the padding should start */
for (i = 0; i < 8; i++)
{
if (read_32bitBE(vgmstream->num_samples+i*4,streamFile) != 0)
{
/* not padding? just play the whole file */
vgmstream->num_samples = file_size;
break;
}
}
vgmstream->coding_type = coding_SNDS_IMA;
vgmstream->layout_type = layout_none;
vgmstream->meta_type = meta_PC_SNDS;
/* open the file for reading */
vgmstream->ch[0].streamfile = vgmstream->ch[1].streamfile =
streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!vgmstream->ch[0].streamfile) goto fail;
vgmstream->ch[0].channel_start_offset=
vgmstream->ch[0].offset=
vgmstream->ch[1].channel_start_offset=
vgmstream->ch[1].offset=0;
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}