mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-24 04:14:50 +01:00
167 lines
6.0 KiB
C
167 lines
6.0 KiB
C
#include "meta.h"
|
|
#include "../layout/layout.h"
|
|
#include "../coding/coding.h"
|
|
|
|
|
|
/* SWVR - from EA games, demuxed from .av/trk/mis/etc [Future Cop L.A.P.D. (PS/PC), Freekstyle (PS2/GC), EA Sports Supercross (PS)] */
|
|
VGMSTREAM * init_vgmstream_ea_swvr(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag = 0, channel_count, sample_rate, big_endian;
|
|
coding_t coding;
|
|
uint32_t block_id;
|
|
int32_t (*read_32bit)(off_t,STREAMFILE*) = NULL;
|
|
int16_t (*read_16bit)(off_t,STREAMFILE*) = NULL;
|
|
int total_subsongs, target_subsong = streamFile->stream_index;
|
|
|
|
|
|
/* checks */
|
|
/* .stream: common (found inside files), .str: shortened, probably unnecessary */
|
|
if (!check_extensions(streamFile,"stream,str"))
|
|
goto fail;
|
|
|
|
/* blocks ids are in machine endianness */
|
|
if (read_32bitBE(0x00,streamFile) == 0x52565753) { /* "RVWS" (PS1/PS2/PC) */
|
|
big_endian = 0;
|
|
read_32bit = read_32bitLE;
|
|
read_16bit = read_16bitLE;
|
|
start_offset = read_32bit(0x04, streamFile);
|
|
}
|
|
else if (read_32bitBE(0x00,streamFile) == 0x53575652) { /* "SWVR" (GC) */
|
|
big_endian = 1;
|
|
read_32bit = read_32bitBE;
|
|
read_16bit = read_16bitBE;
|
|
start_offset = read_32bit(0x04, streamFile);
|
|
}
|
|
else if (read_32bitBE(0x00,streamFile) == 0x4D474156) { /* "MGAV", Freekstyle (PS2) raw movies */
|
|
big_endian = 0;
|
|
read_32bit = read_32bitLE;
|
|
read_16bit = read_16bitLE;
|
|
start_offset = 0x00;
|
|
}
|
|
else if (read_32bitBE(0x00,streamFile) == 0x4453504D) { /* "DSPM", Freekstyle (GC) raw movies */
|
|
big_endian = 1;
|
|
read_32bit = read_32bitBE;
|
|
read_16bit = read_16bitBE;
|
|
start_offset = 0x00;
|
|
}
|
|
else {
|
|
goto fail;
|
|
}
|
|
|
|
start_offset = read_32bit(0x04, streamFile);
|
|
if (read_32bit(start_offset+0x00, streamFile) == 0x50414444) /* "PADD" (Freekstyle) */
|
|
start_offset += read_32bit(start_offset+0x04, streamFile);
|
|
else if (read_32bit(start_offset+0x10, streamFile) == 0x53484452) /* "SHDR" (Future Cop PC) */
|
|
start_offset += read_32bit(start_offset+0x04, streamFile);
|
|
|
|
total_subsongs = 1;
|
|
block_id = read_32bit(start_offset, streamFile);
|
|
|
|
/* files are basically headerless so we inspect blocks the first block
|
|
* Freekstyle uses multiblocks/subsongs (though some subsongs may be clones?) */
|
|
switch(block_id) {
|
|
case 0x5641474D: /* "VAGM" */
|
|
coding = coding_PSX;
|
|
if (read_16bit(start_offset+0x1a, streamFile) == 0x0024) {
|
|
total_subsongs = read_32bit(start_offset+0x0c, streamFile)+1;
|
|
sample_rate = 24000;
|
|
}
|
|
else {
|
|
sample_rate = 16000;
|
|
}
|
|
channel_count = 2;
|
|
break;
|
|
case 0x56414742: /* "VAGB" */
|
|
coding = coding_PSX;
|
|
if (read_16bit(start_offset+0x1a, streamFile) == 0x6400) {
|
|
sample_rate = 24000;
|
|
}
|
|
else {
|
|
sample_rate = 12000;
|
|
}
|
|
channel_count = 1;
|
|
break;
|
|
case 0x4453504D: /* "DSPM" */
|
|
coding = coding_NGC_DSP;
|
|
total_subsongs = read_32bit(start_offset+0x0c, streamFile)+1;
|
|
sample_rate = 24000;
|
|
channel_count = 2;
|
|
break;
|
|
case 0x44535042: /* "DSPB" */
|
|
coding = coding_NGC_DSP;
|
|
channel_count = 1;
|
|
sample_rate = 24000;
|
|
break;
|
|
//todo unknown ADPCM (PC)
|
|
#if 0
|
|
case 0x4D534943: /* "MSIC" */
|
|
coding = coding_IMA;
|
|
channel_count = 2;
|
|
sample_rate = 16000;
|
|
break;
|
|
case 0x53484F43: /* "SHOC" (a generic block but hopefully has PC sounds) */
|
|
coding = coding_IMA;
|
|
channel_count = 1;
|
|
sample_rate = 8000;
|
|
break;
|
|
#endif
|
|
default:
|
|
VGM_LOG("EA SWVR: unknown block id\n");
|
|
goto fail;
|
|
}
|
|
|
|
if (target_subsong == 0) target_subsong = 1;
|
|
if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
|
|
|
|
loop_flag = 0;//(channel_count > 1); /* some Future Cop LAPD tracks repeat but other games have fadeouts */
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = sample_rate;
|
|
vgmstream->codec_endian = big_endian;
|
|
vgmstream->num_streams = total_subsongs;
|
|
vgmstream->stream_size = get_streamfile_size(streamFile) / total_subsongs; /* approx... */
|
|
|
|
vgmstream->meta_type = meta_EA_SWVR;
|
|
vgmstream->coding_type = coding;
|
|
vgmstream->layout_type = layout_blocked_ea_swvr;
|
|
/* DSP coefs are loaded per block */
|
|
/* some files (voices etc) decode with pops but seems a mastering problem */
|
|
|
|
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
|
|
goto fail;
|
|
|
|
/* calc num_samples manually */
|
|
{
|
|
int num_samples;
|
|
vgmstream->stream_index = target_subsong; /* needed to skip other subsong-blocks */
|
|
vgmstream->next_block_offset = start_offset;
|
|
do {
|
|
block_update_ea_swvr(vgmstream->next_block_offset,vgmstream);
|
|
switch(vgmstream->coding_type) {
|
|
case coding_PSX: num_samples = ps_bytes_to_samples(vgmstream->current_block_size,1); break;
|
|
case coding_NGC_DSP: num_samples = dsp_bytes_to_samples(vgmstream->current_block_size,1); break;
|
|
default: num_samples = 0; break;
|
|
}
|
|
vgmstream->num_samples += num_samples;
|
|
}
|
|
while (vgmstream->next_block_offset < get_streamfile_size(streamFile));
|
|
}
|
|
|
|
if (loop_flag) {
|
|
vgmstream->loop_start_sample = 0;
|
|
vgmstream->loop_end_sample = vgmstream->num_samples;
|
|
}
|
|
|
|
block_update_ea_swvr(start_offset, vgmstream);
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|