vgmstream/src/meta/xbox_wavm.c
2014-06-26 21:12:48 -07:00

63 lines
1.6 KiB
C

#include "meta.h"
#include "../util.h"
/* WAVM
WAVM is an headerless format which can be found on XBOX
known extensions : WAVM
2008-05-23 - Fastelbja : First version ...
*/
VGMSTREAM * init_vgmstream_xbox_wavm(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
int loop_flag=0;
int channel_count;
int i;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("wavm",filename_extension(filename))) goto fail;
/* No loop on wavm */
loop_flag = 0;
/* Always stereo files */
channel_count=2;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
/* allways 2 channels @ 44100 Hz */
vgmstream->channels = 2;
vgmstream->sample_rate = 44100;
vgmstream->coding_type = coding_XBOX;
vgmstream->num_samples = (int32_t)(get_streamfile_size(streamFile) / 36 * 64 / vgmstream->channels);
vgmstream->layout_type = layout_none;
vgmstream->meta_type = meta_XBOX_WAVM;
/* open the file for reading by each channel */
{
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,36);
vgmstream->ch[i].offset = 0;
if (!vgmstream->ch[i].streamfile) goto fail;
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}