mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 07:32:52 +01:00
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
|
#include "meta.h"
|
||
|
|
#include "../layout/layout.h"
|
||
|
|
#include "../util.h"
|
||
|
|
|
||
|
|
/* ivaud (from GTA IV (PC)) */
|
||
|
|
VGMSTREAM * init_vgmstream_ivaud(STREAMFILE *streamFile) {
|
||
|
|
VGMSTREAM * vgmstream = NULL;
|
||
|
|
|
||
|
|
char filename[260];
|
||
|
|
off_t start_offset;
|
||
|
|
off_t block_table_offset;
|
||
|
|
int block_count;
|
||
|
|
int loop_flag = 0;
|
||
|
|
int channel_count;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
|
||
|
|
/* at this time, i only check for extension */
|
||
|
|
/* i'll make further checks later */
|
||
|
|
streamFile->get_name(streamFile,filename,sizeof(filename));
|
||
|
|
if (strcasecmp("ivaud",filename_extension(filename))) goto fail;
|
||
|
|
|
||
|
|
/* multiple sounds .ivaud files are not implemented */
|
||
|
|
/* only used for voices & sfx */
|
||
|
|
if(read_32bitLE(0x10,streamFile)!=0)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* never looped and allways 2 channels */
|
||
|
|
loop_flag = 0;
|
||
|
|
channel_count = 2;
|
||
|
|
|
||
|
|
/* build the VGMSTREAM */
|
||
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
||
|
|
if (!vgmstream) goto fail;
|
||
|
|
|
||
|
|
/* fill in the vital statistics */
|
||
|
|
block_table_offset = read_32bitLE(0,streamFile);
|
||
|
|
vgmstream->channels = channel_count;
|
||
|
|
vgmstream->sample_rate = read_32bitLE(block_table_offset + 0x04,streamFile);
|
||
|
|
vgmstream->coding_type = coding_INT_IMA;
|
||
|
|
|
||
|
|
vgmstream->layout_type = layout_ivaud_blocked;
|
||
|
|
vgmstream->meta_type = meta_PC_IVAUD;
|
||
|
|
|
||
|
|
/* open the file for reading */
|
||
|
|
{
|
||
|
|
for (i=0;i<channel_count;i++) {
|
||
|
|
vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,0x2000);
|
||
|
|
if (!vgmstream->ch[i].streamfile) goto fail;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Calc num_samples */
|
||
|
|
start_offset = read_32bitLE(0x2C,streamFile);
|
||
|
|
block_count = read_32bitLE(0x08,streamFile);
|
||
|
|
vgmstream->next_block_offset = read_32bitLE(0x2C,streamFile);
|
||
|
|
|
||
|
|
// to avoid troubles with "extra" samples
|
||
|
|
vgmstream->num_samples=((read_32bitLE(0x60,streamFile)/2)*2);
|
||
|
|
|
||
|
|
ivaud_block_update(start_offset,vgmstream);
|
||
|
|
|
||
|
|
return vgmstream;
|
||
|
|
|
||
|
|
/* clean up anything we may have opened */
|
||
|
|
fail:
|
||
|
|
if (vgmstream) close_vgmstream(vgmstream);
|
||
|
|
return NULL;
|
||
|
|
}
|