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Fix some FSB5 .bank [Transistor (iOS)]

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bnnm 2020-06-21 00:34:48 +02:00
parent cb38467380
commit a906d3f065
1 changed files with 63 additions and 20 deletions
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83
src/meta/fsb5_fev.c
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@ -3,43 +3,76 @@
/* FEV+FSB5 container [Just Cause 3 (PC), Shantae: Half-Genie Hero (Switch)] */
VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE *temp_sf = NULL;
off_t subfile_offset, chunk_offset, first_offset = 0x0c;
size_t subfile_size, chunk_size;
VGMSTREAM* vgmstream = NULL;
STREAMFILE* temp_sf = NULL;
off_t subfile_offset, chunk_offset, bank_offset, offset;
size_t subfile_size, bank_size;
int is_old = 0;
/* checks */
if (!check_extensions(sf, "bank"))
goto fail;
if (read_32bitBE(0x00,sf) != 0x52494646) /* "RIFF" */
if (read_u32be(0x00,sf) != 0x52494646) /* "RIFF" */
goto fail;
if (read_32bitBE(0x08,sf) != 0x46455620) /* "FEV " */
if (read_u32be(0x08,sf) != 0x46455620) /* "FEV " */
goto fail;
/* .fev is an event format referencing various external .fsb, but FMOD can bake .fev and .fsb to
* form a .bank, which is the format we support here (regular .fev is complex and not very interesting).
* Format is RIFF with FMT (main), LIST (config) and SND (FSB5 data), we want the FSB5 offset inside LIST */
if (!find_chunk_le(sf, 0x4C495354,first_offset,0, &chunk_offset,NULL)) /* "LIST" */
if (!find_chunk_le(sf, 0x4C495354, 0x0c, 0, &chunk_offset,NULL)) /* "LIST" */
goto fail;
if (read_u32be(chunk_offset+0x00,sf) != 0x50524F4A || /* "PROJ" */
read_u32be(chunk_offset+0x04,sf) != 0x424E4B49) /* "BNKI" */
goto fail; /* event .fev has "OBCT" instead of "BNKI" (which can also be empty) */
if (read_32bitBE(chunk_offset+0x00,sf) != 0x50524F4A || /* "PROJ" */
read_32bitBE(chunk_offset+0x04,sf) != 0x424E4B49) /* "BNKI" */
goto fail; /* event .fev has "OBCT" instead of "BNKI" */
/* inside BNKI is a bunch of LIST each with event subchunks and finally fsb offset */
first_offset = chunk_offset + 0x04;
if (!find_chunk_le(sf, 0x534E4448,first_offset,0, &chunk_offset,&chunk_size)) /* "SNDH" */
/* inside BNKI is a bunch of LIST each with event subchunks and somewhere the FSB5 offset */
bank_offset = 0;
offset = chunk_offset + 0x04;
while (bank_offset == 0 && offset < get_streamfile_size(sf)) {
uint32_t chunk_type = read_u32be(offset + 0x00,sf);
uint32_t chunk_size = read_u32le(offset + 0x04,sf);
offset += 0x08;
if (chunk_type == 0xFFFFFFFF || chunk_size == 0xFFFFFFFF)
goto fail;
switch(chunk_type) {
case 0x4C495354: /* "LIST" with "SNDH" (older) */
if (read_u32be(offset + 0x04, sf) == 0x534E4448) {
bank_offset = offset + 0x0c;
bank_size = read_s32le(offset + 0x08,sf);
is_old = 1;
}
break;
case 0x534E4448: /* "SNDH" (newer) */
bank_offset = offset;
bank_size = chunk_size;
break;
default:
break;
}
offset += chunk_size;
}
if (bank_offset == 0)
goto fail;
/* 0x00: unknown (version? ex LE: 0x00080003, 0x00080005) */
{
int banks;
size_t entry_size = is_old ? 0x04 : 0x08;
/* multiple banks is possible but rare (only seen an extra "Silence" FSB5 in Guacamelee 2 (Switch),
* which on PC is a regular subsong in the only FSB5) */
banks = (chunk_size - 0x04) / 0x08;
banks = (bank_size - 0x04) / entry_size;
VGM_ASSERT(banks > 1, "FSB5FEV: multiple banks found\n");
/* Could try to set stream index based on FSB subsong ranges, also fixing num_streams and stream_index
@ -48,16 +81,26 @@ VGMSTREAM* init_vgmstream_fsb5_fev_bank(STREAMFILE* sf) {
if (banks > 2)
goto fail;
if (banks == 2) {
off_t temp_offset = read_32bitLE(chunk_offset + 0x04 + 0x08*1 + 0x00,sf);
//size_t temp_size = read_32bitLE(chunk_offset + 0x04 + 0x08*1 + 0x04,sf);
off_t temp_offset = read_u32le(bank_offset + 0x04 + entry_size*1 + 0x00,sf);
//size_t temp_size = read_u32le(bank_offset + 0x04 + entry_size*1 + 0x04,sf);
int bank_subsongs = read_32bitLE(temp_offset + 0x08,sf);
int bank_subsongs = read_s32le(temp_offset + 0x08,sf);
if (bank_subsongs != 1) goto fail;
}
}
subfile_offset = read_32bitLE(chunk_offset+0x04,sf);
subfile_size = read_32bitLE(chunk_offset+0x08,sf);
if (is_old) {
subfile_offset = read_u32le(bank_offset+0x04,sf);
subfile_size = /* meh */
read_u32le(subfile_offset + 0x0C,sf) +
read_u32le(subfile_offset + 0x10,sf) +
read_u32le(subfile_offset + 0x14,sf) +
0x3C;
}
else {
subfile_offset = read_u32le(bank_offset+0x04,sf);
subfile_size = read_u32le(bank_offset+0x08,sf);
}
}
temp_sf = setup_subfile_streamfile(sf, subfile_offset,subfile_size, "fsb");
if (!temp_sf) goto fail;