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Fix encrypted FSB5 .bank

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This commit is contained in:
bnnm 2020-11-02 12:30:20 +01:00
parent 86a18e7ca6
commit 71bf056039
1 changed files with 34 additions and 1 deletions
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35
src/meta/fsb5_fev.c
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@ -1,6 +1,9 @@
#include "meta.h"
#include "../coding/coding.h"
static int get_subsongs(STREAMFILE* sf, off_t fsb5_offset, size_t fsb5_size);
/* FEV+FSB5 container [Just Cause 3 (PC), Shantae: Half-Genie Hero (Switch)] */
VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
@ -93,8 +96,12 @@ VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
fsb5_subsong = -1;
total_subsongs = 0;
for (i = 0; i < banks; i++) {
//TODO: fsb5_size fails for v0x28< + encrypted, but only used with multibanks = unlikely
off_t fsb5_offset = read_u32le(bank_offset + 0x04 + entry_size*i + 0x00,sf);
int fsb5_subsongs = read_s32le(fsb5_offset + 0x08,sf);
size_t fsb5_size = read_u32le(bank_offset+0x08 + entry_size*i,sf);
int fsb5_subsongs = get_subsongs(sf, fsb5_offset, fsb5_size);
if (!fsb5_subsongs)
goto fail;
/* target in range */
if (target_subsong >= total_subsongs + 1 && target_subsong < total_subsongs + 1 + fsb5_subsongs) {
@ -144,3 +151,29 @@ fail:
close_vgmstream(vgmstream);
return NULL;
}
static int get_subsongs(STREAMFILE* sf, off_t fsb5_offset, size_t fsb5_size) {
VGMSTREAM* vgmstream = NULL;
STREAMFILE* temp_sf = NULL;
int subsongs = 0;
/* standard */
if (read_u32be(fsb5_offset, sf) == 0x46534235) { /* FSB5 */
return read_s32le(fsb5_offset + 0x08,sf);
}
/* encrypted, meh */
temp_sf = setup_subfile_streamfile(sf, fsb5_offset, fsb5_size, "fsb");
if (!temp_sf) goto end;
vgmstream = init_vgmstream_fsb_encrypted(temp_sf);
if (!vgmstream) goto end;
subsongs = vgmstream->num_streams;
end:
close_streamfile(temp_sf);
close_vgmstream(vgmstream);
return subsongs;
}