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Fix MUSC looping [Spyro: A New Beginning (PS2), Ty (PS2)]

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bnnm 2017-10-08 17:30:56 +02:00
parent 1da9d0887a
commit cb64f71ba0
2 changed files with 33 additions and 56 deletions
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4
src/formats.c
View File

@ -639,9 +639,9 @@ static const meta_info meta_info_list[] = {
{meta_FSB4, "FMOD Sample Bank (FSB4) Header"},
{meta_FSB5, "FMOD Sample Bank (FSB5) Header"},
{meta_RWX, "RWX Header"},
{meta_XWB, "Microsoft XWB Header"},
{meta_XWB, "Microsoft XWB header"},
{meta_PS2_XA30, "Reflections XA30 PS2 header"},
{meta_MUSC, "MUSC Header"},
{meta_MUSC, "Krome MUSC header"},
{meta_MUSX_V004, "MUSX / Version 004 Header"},
{meta_MUSX_V005, "MUSX / Version 005 Header"},
{meta_MUSX_V006, "MUSX / Version 006 Header"},

85
src/meta/musc.c
View File

@ -1,73 +1,50 @@
#include "meta.h"
#include "../util.h"
#include "../coding/coding.h"
#include "../layout/layout.h"
/* MUSC (near all Spyro games and many other using this) */
/* MUSC - from Krome's PS2 games (The Legend of Spyro, Ty the Tasmanian Tiger) */
VGMSTREAM * init_vgmstream_musc(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
int loop_flag;
int channel_count;
int loop_flag, channel_count;
off_t start_offset;
size_t data_size;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("mus",filename_extension(filename)) &&
strcasecmp("musc",filename_extension(filename)))
goto fail;
/* check header */
if (read_32bitBE(0x0,streamFile) != 0x4D555343) /* MUSC */
goto fail;
/* check file size */
if ((read_32bitLE(0x10,streamFile)+read_32bitLE(0x14,streamFile)) != (get_streamfile_size(streamFile)))
goto fail;
loop_flag = 0;
channel_count = 2;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* .mus is the real extension, .musc is the header ID */
if (!check_extensions(streamFile,"mus,musc"))
goto fail;
if (read_32bitBE(0x00,streamFile) != 0x4D555343) /* "MUSC" */
goto fail;
start_offset = read_32bitLE(0x10,streamFile);
vgmstream->coding_type = coding_PSX;
vgmstream->channels = channel_count;
vgmstream->sample_rate = (uint16_t) read_16bitLE(0x06,streamFile);
vgmstream->num_samples = read_32bitLE(0x14,streamFile)/channel_count/16*28;
data_size = read_32bitLE(0x14,streamFile);
if (start_offset + data_size != get_streamfile_size(streamFile))
goto fail;
/* always does full loops unless it ends in silence */
loop_flag = read_32bitBE(get_streamfile_size(streamFile) - 0x10,streamFile) != 0x0C000000;
channel_count = 2;
#if 0
if (loop_flag)
{
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = (read_32bitLE(0x14,streamFile))*28/16/channel_count;
}
#endif
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = read_32bitLE(0x18,streamFile)/2;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = (uint16_t)read_16bitLE(0x06,streamFile);
vgmstream->num_samples = ps_bytes_to_samples(data_size, channel_count);
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = vgmstream->num_samples;
vgmstream->meta_type = meta_MUSC;
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = read_32bitLE(0x18,streamFile) / 2;
/* open the file for reading */
{
int i;
STREAMFILE * file;
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!file) goto fail;
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = file;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=start_offset+
vgmstream->interleave_block_size*i;
}
}
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
close_vgmstream(vgmstream);
return NULL;
}