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vgmstream/src/meta/nus3bank.c

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C
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#include "meta.h"
#include "../coding/coding.h"
#include "nus3bank_streamfile.h"
typedef enum { IDSP, IVAG, BNSF, RIFF, OPUS, RIFF_ENC, } nus3bank_codec;
/* .nus3bank - Namco's newest audio container [Super Smash Bros (Wii U), idolmaster (PS4))] */
VGMSTREAM * init_vgmstream_nus3bank(STREAMFILE *streamFile) {
VGMSTREAM *vgmstream = NULL;
STREAMFILE *temp_sf = NULL;
off_t tone_offset = 0, pack_offset = 0, name_offset = 0, subfile_offset = 0;
size_t name_size = 0, subfile_size = 0;
nus3bank_codec codec;
const char* fake_ext;
int total_subsongs, target_subsong = streamFile->stream_index;
/* checks */
/* .nub2: early [THE iDOLM@STER 2 (PS3/X360)]
* .nus3bank: standard */
if (!check_extensions(streamFile, "nub2,nus3bank"))
goto fail;
if (read_32bitBE(0x00,streamFile) != 0x4E555333) /* "NUS3" */
goto fail;
if (read_32bitBE(0x08,streamFile) != 0x42414E4B) /* "BANK" */
goto fail;
if (read_32bitBE(0x0c,streamFile) != 0x544F4320) /* "TOC\0" */
goto fail;
/* header is always LE, while contained files may use another endianness */
/* parse TOC with all existing chunks and sizes (offsets must be derived) */
{
int i;
off_t offset = 0x14 + read_32bitLE(0x10, streamFile); /* TOC size */
size_t chunk_count = read_32bitLE(0x14, streamFile); /* rarely not 7 (ex. SMB U's snd_bgm_CRS12_Simple_Result_Final) */
for (i = 0; i < chunk_count; i++) {
uint32_t chunk_id = (uint32_t)read_32bitBE(0x18+(i*0x08)+0x00, streamFile);
size_t chunk_size = (size_t)read_32bitLE(0x18+(i*0x08)+0x04, streamFile);
switch(chunk_id) {
case 0x544F4E45: /* "TONE": stream info */
tone_offset = 0x08 + offset;
break;
case 0x5041434B: /* "PACK": audio streams */
pack_offset = 0x08 + offset;
break;
case 0x50524F50: /* "PROP": project info */
case 0x42494E46: /* "BINF": bank info (filename) */
case 0x47525020: /* "GRP ": cues/events with names? */
case 0x44544F4E: /* "DTON": related to GRP? */
case 0x4D41524B: /* "MARK": ? */
case 0x4A554E4B: /* "JUNK": padding */
default:
break;
}
offset += 0x08 + chunk_size;
}
if (tone_offset == 0 || pack_offset == 0) {
VGM_LOG("NUS3BANK: chunks found\n");
goto fail;
}
}
/* parse tones */
{
int i;
uint32_t codec_id = 0;
size_t entries = read_32bitLE(tone_offset+0x00, streamFile);
/* get actual number of subsongs */
total_subsongs = 0;
if (target_subsong == 0) target_subsong = 1;
for (i = 0; i < entries; i++) {
off_t offset, tone_header_offset, stream_name_offset, stream_offset;
size_t tone_header_size, stream_name_size, stream_size;
uint8_t flags2;
tone_header_offset = read_32bitLE(tone_offset+0x04+(i*0x08)+0x00, streamFile);
tone_header_size = read_32bitLE(tone_offset+0x04+(i*0x08)+0x04, streamFile);
offset = tone_offset + tone_header_offset;
//;VGM_LOG("NUS3BANK: tone at %lx, size %x\n", tone_offset + tone_header_offset, tone_header_size);
if (tone_header_size <= 0x0c) {
//VGM_LOG("NUS3BANK: bad tone at %lx, size %x\n", tone_offset + tone_header_offset, tone_header_size);
continue; /* ignore non-sounds */
}
/* 0x00: type? normally 0x00 and rarely 0x09 */
/* 0x04: usually -1, found when tone is not a stream (most flags are off too) */
/* 0x06: flags1 */
flags2 = read_8bit(offset + 0x07, streamFile);
offset += 0x08;
/* flags3-6 (early .nub2 and some odd non-stream don't have them) */
if (flags2 & 0x80) {
offset += 0x04;
}
stream_name_size = read_8bit(offset + 0x00, streamFile); /* includes null */
stream_name_offset = offset + 0x01;
offset += align_size_to_block(0x01 + stream_name_size, 0x04); /* padded if needed */
/* 0x00: subtype? should be 0 */
if (read_32bitLE(offset + 0x04, streamFile) != 0x08) { /* flag? */
//;VGM_LOG("NUS3BANK: bad tone type at %lx, size %x\n", tone_offset + tone_header_offset, tone_header_size);
continue;
}
stream_offset = read_32bitLE(offset + 0x08, streamFile) + pack_offset;
stream_size = read_32bitLE(offset + 0x0c, streamFile);
//;VGM_LOG("NUS3BANK: so=%lx, ss=%x\n", stream_offset, stream_size);
/* Beyond are a bunch of sub-chunks of unknown size with floats and stuff, that seemingly
* appear depending on flags1-6. One is a small stream header, which contains basic
* sample rate/channels/loops/etc, but it's actually optional and maybe controlled by
* flags 3-6 (ex. not found in .nub2) */
/* happens in some sfx packs (ex. Taiko no Tatsujin Switch's se_minigame) */
if (stream_size == 0) {
//;VGM_LOG("NUS3BANK: bad tone stream size at %lx, size %x\n", tone_offset + tone_header_offset, tone_header_size);
continue;
}
total_subsongs++;
if (total_subsongs == target_subsong) {
//;VGM_LOG("NUS3BANK: subsong header offset %lx\n", offset);
subfile_offset = stream_offset;
subfile_size = stream_size;
name_size = stream_name_size;
name_offset = stream_name_offset;
}
/* continue counting subsongs */
}
if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
if (subfile_offset == 0) {
VGM_LOG("NUS3BANK: subsong not found\n");
goto fail;
}
//todo improve, codec may be in one of the tone sub-chunks (or other chunk? one bank seems to use one codec)
codec_id = read_32bitBE(subfile_offset, streamFile);
switch(codec_id) {
case 0x49445350: /* "IDSP" [Super Smash Bros. for 3DS (3DS)] */
codec = IDSP;
fake_ext = "idsp";
break;
case 0x52494646: /* "RIFF" [THE iDOLM@STER 2 (PS3), Mario Kart Arcade GP DX (PC), idolm@ster: Platinum Stars (PS4)] */
codec = RIFF;
fake_ext = "wav"; //TODO: works but should have better detection
break;
case 0x4F505553: /* "OPUS" [Taiko no Tatsujin (Switch)] */
codec = OPUS;
fake_ext = "opus";
break;
case 0x424E5346: /* "BNSF" [Naruto Shippuden Ultimate Ninja Storm 4 (PC)] */
codec = BNSF;
fake_ext = "bnsf";
break;
case 0x49564147: /* "IVAG" [THE iDOLM@STER 2 (PS3), THE iDOLM@STER: Gravure For You! (PS3)] */
codec = IVAG;
fake_ext = "ivag";
break;
case 0x552AAF17: /* "RIFF" with encrypted header (not data) [THE iDOLM@STER 2 (X360)] */
codec = RIFF_ENC;
fake_ext = "xma";
break;
default:
VGM_LOG("NUS3BANK: unknown codec %x\n", codec_id);
goto fail;
}
}
//;VGM_LOG("NUS3BANK: subfile=%lx, size=%x\n", subfile_offset, subfile_size);
temp_sf = setup_subfile_streamfile(streamFile, subfile_offset, subfile_size, fake_ext);
if (!temp_sf) goto fail;
/* init the VGMSTREAM */
switch(codec) {
case IDSP:
vgmstream = init_vgmstream_idsp_namco(temp_sf);
if (!vgmstream) goto fail;
break;
case OPUS:
vgmstream = init_vgmstream_opus_nus3(temp_sf);
if (!vgmstream) goto fail;
break;
case RIFF:
vgmstream = init_vgmstream_riff(temp_sf);
if (!vgmstream) goto fail;
break;
case BNSF:
vgmstream = init_vgmstream_bnsf(temp_sf);
if (!vgmstream) goto fail;
break;
case IVAG:
vgmstream = init_vgmstream_ivag(temp_sf);
if (!vgmstream) goto fail;
break;
case RIFF_ENC:
vgmstream = init_vgmstream_nus3bank_encrypted(temp_sf);
if (!vgmstream) goto fail;
break;
default:
goto fail;
}
vgmstream->num_streams = total_subsongs;
if (name_offset)
read_string(vgmstream->stream_name,name_size, name_offset,streamFile);
close_streamfile(temp_sf);
return vgmstream;
fail:
close_streamfile(temp_sf);
close_vgmstream(vgmstream);
return NULL;
}
/* encrypted RIFF from the above, in case kids try to extract and play single files */
VGMSTREAM* init_vgmstream_nus3bank_encrypted(STREAMFILE *sf) {
VGMSTREAM *vgmstream = NULL;
STREAMFILE *temp_sf = NULL;
/* checks */
if (!check_extensions(sf, "nus3bank,xma"))
goto fail;
if (read_u32be(0x00, sf) != 0x552AAF17) /* "RIFF" encrypted */
goto fail;
temp_sf = setup_nus3bank_streamfile(sf, 0x00);
if (!temp_sf) goto fail;
vgmstream = init_vgmstream_xma(temp_sf);
if (!vgmstream) goto fail;
close_streamfile(temp_sf);
return vgmstream;
fail:
close_streamfile(temp_sf);
close_vgmstream(vgmstream);
return NULL;
}
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