mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-12 14:51:05 +01:00
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
|
|
Wii U boot sound file for each game/app.
|
|
*/
|
|
|
|
#include "meta.h"
|
|
#include "../util.h"
|
|
|
|
VGMSTREAM * init_vgmstream_btsnd(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
char filename[PATH_LIMIT];
|
|
int channel_count = 2;
|
|
int loop_flag;
|
|
off_t start_offset = 0x8;
|
|
|
|
/* check extension, case insensitive */
|
|
streamFile->get_name(streamFile, filename, sizeof(filename));
|
|
if (strcasecmp("btsnd", filename_extension(filename)))
|
|
goto fail;
|
|
|
|
/* Checking for loop start */
|
|
if (read_32bitBE(0x4, streamFile) > 0)
|
|
loop_flag = 1;
|
|
else
|
|
loop_flag = 0;
|
|
|
|
if (channel_count < 1) goto fail;
|
|
|
|
/* build the VGMSTREAM */
|
|
|
|
vgmstream = allocate_vgmstream(channel_count, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
/* fill in the vital statistics */
|
|
vgmstream->sample_rate = 48000;
|
|
/* channels and loop flag are set by allocate_vgmstream */
|
|
|
|
// There's probably a better way to get the sample count...
|
|
vgmstream->num_samples = vgmstream->loop_end_sample = (get_streamfile_size(streamFile) - 8) / 4;
|
|
|
|
vgmstream->loop_start_sample = read_32bitBE(0x4, streamFile);
|
|
|
|
vgmstream->coding_type = coding_PCM16BE;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x2; // Constant for this format
|
|
vgmstream->meta_type = meta_WIIU_BTSND;
|
|
|
|
/* open the file for reading by each channel */
|
|
{
|
|
int i;
|
|
for (i = 0; i<channel_count; i++) {
|
|
vgmstream->ch[i].streamfile = streamFile->open(streamFile, filename,
|
|
STREAMFILE_DEFAULT_BUFFER_SIZE);
|
|
|
|
if (!vgmstream->ch[i].streamfile) goto fail;
|
|
|
|
vgmstream->ch[i].channel_start_offset =
|
|
vgmstream->ch[i].offset =
|
|
start_offset + i*vgmstream->interleave_block_size;
|
|
}
|
|
}
|
|
|
|
return vgmstream;
|
|
|
|
/* clean up anything we may have opened */
|
|
fail:
|
|
if (vgmstream) close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|