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vgmstream/src/meta/fsb5.c

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2020-03-08 22:50:11 +01:00
#include "meta.h"
#include "../coding/coding.h"
#include "../layout/layout.h"
#include "fsb5_interleave_streamfile.h"
typedef struct {
int total_subsongs;
int version;
int codec;
int flags;
int channels;
int sample_rate;
int32_t num_samples;
int32_t loop_start;
int32_t loop_end;
int loop_flag;
off_t sample_header_offset;
size_t sample_header_size;
size_t name_table_size;
size_t sample_data_size;
size_t base_header_size;
off_t extradata_offset;
size_t extradata_size;
off_t stream_offset;
size_t stream_size;
off_t name_offset;
} fsb5_header;
/* ********************************************************************************** */
static layered_layout_data* build_layered_fsb5_celt(STREAMFILE *streamFile, fsb5_header* fsb5);
static layered_layout_data* build_layered_fsb5_atrac9(STREAMFILE *streamFile, fsb5_header* fsb5, off_t configs_offset, size_t configs_size);
/* FSB5 - FMOD Studio multiplatform format */
VGMSTREAM * init_vgmstream_fsb5(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
fsb5_header fsb5 = {0};
int target_subsong = streamFile->stream_index;
int i;
/* checks */
/* .fsb: standard
* .snd: Alchemy engine (also Unity) */
if (!check_extensions(streamFile,"fsb,snd"))
goto fail;
if (read_32bitBE(0x00,streamFile) != 0x46534235) /* "FSB5" */
goto fail;
/* 0x00 is rare (seen in Tales from Space Vita) */
fsb5.version = read_32bitLE(0x04,streamFile);
if (fsb5.version != 0x00 && fsb5.version != 0x01) goto fail;
fsb5.total_subsongs = read_32bitLE(0x08,streamFile);
fsb5.sample_header_size = read_32bitLE(0x0C,streamFile);
fsb5.name_table_size = read_32bitLE(0x10,streamFile);
fsb5.sample_data_size = read_32bitLE(0x14,streamFile);
fsb5.codec = read_32bitLE(0x18,streamFile);
/* version 0x01 - 0x1c(4): zero, 0x24(16): hash, 0x34(8): unk
* version 0x00 has an extra field (always 0?) at 0x1c */
if (fsb5.version == 0x01) {
/* found by tests and assumed to be flags, no games known */
fsb5.flags = read_32bitLE(0x20,streamFile);
}
fsb5.base_header_size = (fsb5.version==0x00) ? 0x40 : 0x3C;
if ((fsb5.sample_header_size + fsb5.name_table_size + fsb5.sample_data_size + fsb5.base_header_size) != get_streamfile_size(streamFile)) {
VGM_LOG("FSB5: bad size (%x + %x + %x + %x != %x)\n", fsb5.sample_header_size, fsb5.name_table_size, fsb5.sample_data_size, fsb5.base_header_size, get_streamfile_size(streamFile));
goto fail;
}
if (target_subsong == 0) target_subsong = 1;
if (target_subsong > fsb5.total_subsongs || fsb5.total_subsongs <= 0) goto fail;
fsb5.sample_header_offset = fsb5.base_header_size;
/* find target stream header and data offset, and read all needed values for later use
* (reads one by one as the size of a single stream header is variable) */
for (i = 0; i < fsb5.total_subsongs; i++) {
size_t stream_header_size = 0;
off_t data_offset = 0;
uint32_t sample_mode1, sample_mode2; /* maybe one uint64? */
sample_mode1 = (uint32_t)read_32bitLE(fsb5.sample_header_offset+0x00,streamFile);
sample_mode2 = (uint32_t)read_32bitLE(fsb5.sample_header_offset+0x04,streamFile);
stream_header_size += 0x08;
/* get samples */
fsb5.num_samples = ((sample_mode2 >> 2) & 0x3FFFFFFF); /* bits2: 31..2 (30) */
/* get offset inside data section */
/* up to 0x07FFFFFF * 0x20 = full 32b offset 0xFFFFFFE0 */
data_offset = (((sample_mode2 & 0x03) << 25) | ((sample_mode1 >> 7) & 0x1FFFFFF)) << 5; /* bits2: 1..0 (2) | bits1: 31..8 (25) */
/* get channels */
switch ((sample_mode1 >> 5) & 0x03) { /* bits1: 7..6 (2) */
case 0: fsb5.channels = 1; break;
case 1: fsb5.channels = 2; break;
case 2: fsb5.channels = 6; break; /* some Dark Souls 2 MPEG; some IMA ADPCM */
case 3: fsb5.channels = 8; break; /* some IMA ADPCM */
/* other channels (ex. 4/10/12ch) use 0 here + set extra flags */
default: /* not possible */
goto fail;
}
/* get sample rate */
switch ((sample_mode1 >> 1) & 0x0f) { /* bits1: 5..1 (4) */
case 0: fsb5.sample_rate = 4000; break;
case 1: fsb5.sample_rate = 8000; break;
case 2: fsb5.sample_rate = 11000; break;
case 3: fsb5.sample_rate = 11025; break;
case 4: fsb5.sample_rate = 16000; break;
case 5: fsb5.sample_rate = 22050; break;
case 6: fsb5.sample_rate = 24000; break;
case 7: fsb5.sample_rate = 32000; break;
case 8: fsb5.sample_rate = 44100; break;
case 9: fsb5.sample_rate = 48000; break;
case 10: fsb5.sample_rate = 96000; break;
/* other sample rates (ex. 3000/64000/192000) use 0 here + set extra flags */
default: /* 11-15: rejected (FMOD error) */
goto fail;
}
/* get extra flags */
if (sample_mode1 & 0x01) { /* bits1: 0 (1) */
off_t extraflag_offset = fsb5.sample_header_offset+0x08;
uint32_t extraflag, extraflag_type, extraflag_size, extraflag_end;
do {
extraflag = read_32bitLE(extraflag_offset,streamFile);
extraflag_type = (extraflag >> 25) & 0x7F; /* bits 32..26 (7) */
extraflag_size = (extraflag >> 1) & 0xFFFFFF; /* bits 25..1 (24)*/
extraflag_end = (extraflag & 0x01); /* bit 0 (1) */
/* parse target only, as flags change between subsongs */
if (i + 1 == target_subsong) {
switch(extraflag_type) {
case 0x01: /* channels */
fsb5.channels = read_8bit(extraflag_offset+0x04,streamFile);
break;
case 0x02: /* sample rate */
fsb5.sample_rate = read_32bitLE(extraflag_offset+0x04,streamFile);
break;
case 0x03: /* loop info */
fsb5.loop_start = read_32bitLE(extraflag_offset+0x04,streamFile);
if (extraflag_size > 0x04) { /* probably not needed */
fsb5.loop_end = read_32bitLE(extraflag_offset+0x08,streamFile);
fsb5.loop_end += 1; /* correct compared to FMOD's tools */
}
//;VGM_LOG("FSB5: stream %i loop start=%i, loop end=%i, samples=%i\n", i, fsb5.loop_start, fsb5.loop_end, fsb5.num_samples);
/* autodetect unwanted loops */
{
/* like FSB4 jingles/sfx/music do full loops for no reason, but happens a lot less.
* Most songs loop normally now with proper values [ex. Shantae, FFX] */
int full_loop, ajurika_loops, is_small;
/* disable some jingles, it's even possible one jingle (StingerA Var1) to not have loops
* and next one (StingerA Var2) do [Sonic Boom Fire & Ice (3DS)] */
full_loop = fsb5.loop_start == 0 && fsb5.loop_end + 1152 >= fsb5.num_samples; /* around ~15 samples less, ~1000 for MPEG */
/* a few longer Sonic songs shouldn't repeat */
is_small = 1; //fsb5.num_samples < 20 * fsb5.sample_rate;
/* wrong values in some files [Pac-Man CE2 Plus (Switch) pce2p_bgm_ajurika_*.fsb] */
ajurika_loops = fsb5.loop_start == 0x3c && fsb5.loop_end == 0x007F007F &&
fsb5.num_samples > fsb5.loop_end + 10000; /* arbitrary test in case some game does have those */
fsb5.loop_flag = 1;
if ((full_loop && is_small) || ajurika_loops) {
VGM_LOG("FSB5: stream %i disabled unwanted loop ls=%i, le=%i, ns=%i\n", i, fsb5.loop_start, fsb5.loop_end, fsb5.num_samples);
fsb5.loop_flag = 0;
}
}
break;
case 0x04: /* free comment, or maybe SFX info */
break;
case 0x05: /* unknown 32b */
/* rare, found in Tearaway (Vita) with value 0 in first stream and
* Shantae and the Seven Sirens (Mobile) with value 0x0003bd72 BE in #44 (Arena Town) */
VGM_LOG("FSB5: stream %i flag %x with value %08x\n", i, extraflag_type, read_32bitLE(extraflag_offset+0x04,streamFile));
break;
case 0x06: /* XMA seek table */
/* no need for it */
break;
case 0x07: /* DSP coefs */
fsb5.extradata_offset = extraflag_offset + 0x04;
break;
case 0x09: /* ATRAC9 config */
fsb5.extradata_offset = extraflag_offset + 0x04;
fsb5.extradata_size = extraflag_size;
break;
case 0x0a: /* XWMA config */
fsb5.extradata_offset = extraflag_offset + 0x04;
break;
case 0x0b: /* Vorbis setup ID and seek table */
fsb5.extradata_offset = extraflag_offset + 0x04;
/* seek table format:
* 0x08: table_size (total_entries = seek_table_size / (4+4)), not counting this value; can be 0
* 0x0C: sample number (only some samples are saved in the table)
* 0x10: offset within data, pointing to a FSB vorbis block (with the 16b block size header)
* (xN entries)
*/
break;
case 0x0d: /* unknown 32b (config? usually 0x3fnnnn00 BE and sometimes 0x3dnnnn00 BE) */
/* found in some XMA2/Vorbis/FADPCM */
VGM_LOG("FSB5: stream %i flag %x with value %08x\n", i, extraflag_type, read_32bitLE(extraflag_offset+0x04,streamFile));
break;
default:
VGM_LOG("FSB5: stream %i unknown flag 0x%x at %x + 0x04 (size 0x%x)\n", i, extraflag_type, (uint32_t)extraflag_offset, extraflag_size);
break;
}
}
extraflag_offset += 0x04 + extraflag_size;
stream_header_size += 0x04 + extraflag_size;
} while (extraflag_end != 0x00);
}
/* target found */
if (i + 1 == target_subsong) {
fsb5.stream_offset = fsb5.base_header_size + fsb5.sample_header_size + fsb5.name_table_size + data_offset;
/* get stream size from next stream offset or full size if there is only one */
if (i + 1 == fsb5.total_subsongs) {
fsb5.stream_size = fsb5.sample_data_size - data_offset;
}
else {
off_t next_data_offset;
uint32_t next_sample_mode1, next_sample_mode2;
next_sample_mode1 = (uint32_t)read_32bitLE(fsb5.sample_header_offset+stream_header_size+0x00,streamFile);
next_sample_mode2 = (uint32_t)read_32bitLE(fsb5.sample_header_offset+stream_header_size+0x04,streamFile);
next_data_offset = (((next_sample_mode2 & 0x03) << 25) | ((next_sample_mode1 >> 7) & 0x1FFFFFF)) << 5;
fsb5.stream_size = next_data_offset - data_offset;
}
break;
}
/* continue searching target */
fsb5.sample_header_offset += stream_header_size;
}
/* target stream not found*/
if (!fsb5.stream_offset || !fsb5.stream_size) goto fail;
/* get stream name */
if (fsb5.name_table_size) {
off_t name_suboffset = fsb5.base_header_size + fsb5.sample_header_size + 0x04*(target_subsong-1);
fsb5.name_offset = fsb5.base_header_size + fsb5.sample_header_size + read_32bitLE(name_suboffset,streamFile);
}
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(fsb5.channels,fsb5.loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = fsb5.sample_rate;
vgmstream->num_samples = fsb5.num_samples;
if (fsb5.loop_flag) {
vgmstream->loop_start_sample = fsb5.loop_start;
vgmstream->loop_end_sample = fsb5.loop_end;
}
vgmstream->num_streams = fsb5.total_subsongs;
vgmstream->stream_size = fsb5.stream_size;
vgmstream->meta_type = meta_FSB5;
if (fsb5.name_offset)
read_string(vgmstream->stream_name,STREAM_NAME_SIZE, fsb5.name_offset,streamFile);
switch (fsb5.codec) {
case 0x00: /* FMOD_SOUND_FORMAT_NONE */
goto fail;
case 0x01: /* FMOD_SOUND_FORMAT_PCM8 [Anima - Gate of Memories (PC)] */
vgmstream->coding_type = coding_PCM8_U;
vgmstream->layout_type = fsb5.channels == 1 ? layout_none : layout_interleave;
vgmstream->interleave_block_size = 0x01;
break;
case 0x02: /* FMOD_SOUND_FORMAT_PCM16 [Shantae Risky's Revenge (PC)] */
vgmstream->coding_type = (fsb5.flags & 0x01) ? coding_PCM16BE : coding_PCM16LE;
vgmstream->layout_type = fsb5.channels == 1 ? layout_none : layout_interleave;
vgmstream->interleave_block_size = 0x02;
break;
case 0x03: /* FMOD_SOUND_FORMAT_PCM24 */
VGM_LOG("FSB5: FMOD_SOUND_FORMAT_PCM24 found\n");
goto fail;
case 0x04: /* FMOD_SOUND_FORMAT_PCM32 */
VGM_LOG("FSB5: FMOD_SOUND_FORMAT_PCM32 found\n");
goto fail;
case 0x05: /* FMOD_SOUND_FORMAT_PCMFLOAT [Anima: Gate of Memories (PC)] */
vgmstream->coding_type = coding_PCMFLOAT;
vgmstream->layout_type = (fsb5.channels == 1) ? layout_none : layout_interleave;
vgmstream->interleave_block_size = 0x04;
break;
case 0x06: /* FMOD_SOUND_FORMAT_GCADPCM [Sonic Boom: Fire and Ice (3DS)] */
if (fsb5.flags & 0x02) { /* non-interleaved mode */
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = (fsb5.stream_size / fsb5.channels);
}
else {
vgmstream->coding_type = coding_NGC_DSP_subint;
vgmstream->layout_type = layout_none;
vgmstream->interleave_block_size = 0x02;
}
dsp_read_coefs_be(vgmstream,streamFile,fsb5.extradata_offset,0x2E);
break;
case 0x07: /* FMOD_SOUND_FORMAT_IMAADPCM [Skylanders] */
vgmstream->coding_type = (vgmstream->channels > 2) ? coding_FSB_IMA : coding_XBOX_IMA;
vgmstream->layout_type = layout_none;
break;
case 0x08: /* FMOD_SOUND_FORMAT_VAG [from fsbankex tests, no known games] */
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
if (fsb5.flags & 0x02) { /* non-interleaved mode */
vgmstream->interleave_block_size = (fsb5.stream_size / fsb5.channels);
}
else {
vgmstream->interleave_block_size = 0x10;
}
break;
case 0x09: /* FMOD_SOUND_FORMAT_HEVAG [Guacamelee (Vita)] */
vgmstream->coding_type = coding_HEVAG;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x10;
break;
#ifdef VGM_USE_FFMPEG
case 0x0A: {/* FMOD_SOUND_FORMAT_XMA [Minecraft Story Mode (X360)] */
uint8_t buf[0x100];
int bytes, block_size, block_count;
block_size = 0x8000; /* FSB default */
block_count = fsb5.stream_size / block_size + (fsb5.stream_size % block_size ? 1 : 0);
bytes = ffmpeg_make_riff_xma2(buf, 0x100, vgmstream->num_samples, fsb5.stream_size, vgmstream->channels, vgmstream->sample_rate, block_count, block_size);
vgmstream->codec_data = init_ffmpeg_header_offset(streamFile, buf,bytes, fsb5.stream_offset,fsb5.stream_size);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
xma_fix_raw_samples(vgmstream, streamFile, fsb5.stream_offset,fsb5.stream_size, 0, 0,0); /* samples look ok */
break;
}
#endif
#ifdef VGM_USE_MPEG
case 0x0B: {/* FMOD_SOUND_FORMAT_MPEG [Final Fantasy X HD (PS3), Shantae Risky's Revenge (PC)] */
mpeg_custom_config cfg = {0};
cfg.fsb_padding = (vgmstream->channels > 2 ? 16 : 4); /* observed default */
vgmstream->codec_data = init_mpeg_custom(streamFile, fsb5.stream_offset, &vgmstream->coding_type, vgmstream->channels, MPEG_FSB, &cfg);
if (!vgmstream->codec_data) goto fail;
vgmstream->layout_type = layout_none;
break;
}
#endif
#ifdef VGM_USE_CELT
case 0x0C: { /* FMOD_SOUND_FORMAT_CELT [BIT.TRIP Presents Runner2 (PC), Full Bore (PC)] */
int is_multistream = fsb5.channels > 2;
if (is_multistream) {
vgmstream->layout_data = build_layered_fsb5_celt(streamFile, &fsb5);
if (!vgmstream->layout_data) goto fail;
vgmstream->coding_type = coding_CELT_FSB;
vgmstream->layout_type = layout_layered;
}
else {
vgmstream->codec_data = init_celt_fsb(vgmstream->channels, CELT_0_11_0);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_CELT_FSB;
vgmstream->layout_type = layout_none;
}
break;
}
#endif
#ifdef VGM_USE_ATRAC9
case 0x0D: {/* FMOD_SOUND_FORMAT_AT9 */
int is_multistream;
off_t configs_offset = fsb5.extradata_offset;
size_t configs_size = fsb5.extradata_size;
/* skip frame size in newer FSBs [Day of the Tentacle Remastered (Vita), Tearaway Unfolded (PS4)] */
if (configs_size >= 0x08 && (uint8_t)read_8bit(configs_offset, streamFile) != 0xFE) { /* ATRAC9 sync */
configs_offset += 0x04;
configs_size -= 0x04;
}
is_multistream = (configs_size / 0x04) > 1;
if (is_multistream) {
/* multichannel made of various streams [Little Big Planet (Vita)] */
vgmstream->layout_data = build_layered_fsb5_atrac9(streamFile, &fsb5, configs_offset, configs_size);
if (!vgmstream->layout_data) goto fail;
vgmstream->coding_type = coding_ATRAC9;
vgmstream->layout_type = layout_layered;
}
else {
/* standard ATRAC9, can be multichannel [Tearaway Unfolded (PS4)] */
atrac9_config cfg = {0};
cfg.channels = vgmstream->channels;
cfg.config_data = read_32bitBE(configs_offset,streamFile);
//cfg.encoder_delay = 0x100; //todo not used? num_samples seems to count all data
vgmstream->codec_data = init_atrac9(&cfg);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_ATRAC9;
vgmstream->layout_type = layout_none;
}
break;
}
#endif
#ifdef VGM_USE_FFMPEG
case 0x0E: { /* FMOD_SOUND_FORMAT_XWMA [from fsbankex tests, no known games] */
uint8_t buf[0x100];
int bytes, format, average_bps, block_align;
format = read_16bitBE(fsb5.extradata_offset+0x00,streamFile);
block_align = (uint16_t)read_16bitBE(fsb5.extradata_offset+0x02,streamFile);
average_bps = (uint32_t)read_32bitBE(fsb5.extradata_offset+0x04,streamFile);
/* rest: seek entries + mini seek table? */
/* XWMA encoder only does up to 6ch (doesn't use FSB multistreams for more) */
bytes = ffmpeg_make_riff_xwma(buf,0x100, format, fsb5.stream_size, vgmstream->channels, vgmstream->sample_rate, average_bps, block_align);
vgmstream->codec_data = init_ffmpeg_header_offset(streamFile, buf,bytes, fsb5.stream_offset,fsb5.stream_size);
if ( !vgmstream->codec_data ) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
break;
}
#endif
#ifdef VGM_USE_VORBIS
case 0x0F: {/* FMOD_SOUND_FORMAT_VORBIS [Shantae Half Genie Hero (PC), Pokemon Go (iOS)] */
vorbis_custom_config cfg = {0};
cfg.channels = vgmstream->channels;
cfg.sample_rate = vgmstream->sample_rate;
cfg.setup_id = read_32bitLE(fsb5.extradata_offset,streamFile);
vgmstream->layout_type = layout_none;
vgmstream->coding_type = coding_VORBIS_custom;
vgmstream->codec_data = init_vorbis_custom(streamFile, fsb5.stream_offset, VORBIS_FSB, &cfg);
if (!vgmstream->codec_data) goto fail;
break;
}
#endif
case 0x10: /* FMOD_SOUND_FORMAT_FADPCM [Dead Rising 4 (PC), Sine Mora Ex (Switch)] */
vgmstream->coding_type = coding_FADPCM;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x8c;
break;
default:
VGM_LOG("FSB5: unknown codec %x found\n", fsb5.codec);
goto fail;
}
if (!vgmstream_open_stream(vgmstream,streamFile,fsb5.stream_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}
static layered_layout_data* build_layered_fsb5_celt(STREAMFILE *streamFile, fsb5_header* fsb5) {
layered_layout_data* data = NULL;
STREAMFILE* temp_streamFile = NULL;
int i, layers = (fsb5->channels+1) / 2;
size_t interleave;
if (read_32bitBE(fsb5->stream_offset+0x00,streamFile) != 0x17C30DF3) /* FSB CELT frame ID */
goto fail;
interleave = 0x04+0x04+read_32bitLE(fsb5->stream_offset+0x04,streamFile); /* frame size */
//todo unknown interleave for max quality odd channel streams (found in test files)
/* FSB5 odd channels use 2ch+2ch...+1ch streams, and the last only goes up to 0x17a, and other
* streams only use that max (doesn't happen for smaller frames, even channels, or FSB4)
* however streams other than the last seem to be padded with 0s somehow and wont work */
if (interleave > 0x17a && (fsb5->channels % 2 == 1))
interleave = 0x17a;
/* init layout */
data = init_layout_layered(layers);
if (!data) goto fail;
/* open each layer subfile (1/2ch CELT streams: 2ch+2ch..+1ch or 2ch+2ch..+2ch) */
for (i = 0; i < layers; i++) {
int layer_channels = (i+1 == layers && fsb5->channels % 2 == 1)
? 1 : 2; /* last layer can be 1/2ch */
/* build the layer VGMSTREAM */
data->layers[i] = allocate_vgmstream(layer_channels, fsb5->loop_flag);
if (!data->layers[i]) goto fail;
data->layers[i]->sample_rate = fsb5->sample_rate;
data->layers[i]->num_samples = fsb5->num_samples;
data->layers[i]->loop_start_sample = fsb5->loop_start;
data->layers[i]->loop_end_sample = fsb5->loop_end;
#ifdef VGM_USE_CELT
data->layers[i]->codec_data = init_celt_fsb(layer_channels, CELT_0_11_0);
if (!data->layers[i]->codec_data) goto fail;
data->layers[i]->coding_type = coding_CELT_FSB;
data->layers[i]->layout_type = layout_none;
#else
goto fail;
#endif
temp_streamFile = setup_fsb5_interleave_streamfile(streamFile, fsb5->stream_offset, fsb5->stream_size, layers, i, FSB5_INT_CELT, interleave);
if (!temp_streamFile) goto fail;
if (!vgmstream_open_stream(data->layers[i], temp_streamFile, 0x00))
goto fail;
}
/* setup layered VGMSTREAMs */
if (!setup_layout_layered(data))
goto fail;
close_streamfile(temp_streamFile);
return data;
fail:
close_streamfile(temp_streamFile);
free_layout_layered(data);
return NULL;
}
static layered_layout_data* build_layered_fsb5_atrac9(STREAMFILE *streamFile, fsb5_header* fsb5, off_t configs_offset, size_t configs_size) {
layered_layout_data* data = NULL;
STREAMFILE* temp_streamFile = NULL;
int i, layers = (configs_size / 0x04);
size_t interleave = 0;
/* init layout */
data = init_layout_layered(layers);
if (!data) goto fail;
/* open each layer subfile (2ch+2ch..+1/2ch) */
for (i = 0; i < layers; i++) {
uint32_t config = read_32bitBE(configs_offset + 0x04*i, streamFile);
int channel_index, layer_channels;
size_t frame_size;
/* parse ATRAC9 config (see VGAudio docs) */
channel_index = ((config >> 17) & 0x7);
frame_size = (((config >> 5) & 0x7FF) + 1) * (1 << ((config >> 3) & 0x2)); /* frame size * superframe index */
if (channel_index > 2)
goto fail; /* only 1/2ch expected */
layer_channels = (channel_index==0) ? 1 : 2;
if (interleave == 0)
interleave = frame_size;
//todo in test files with 2ch+..+1ch interleave is off (uses some strange padding)
/* build the layer VGMSTREAM */
data->layers[i] = allocate_vgmstream(layer_channels, fsb5->loop_flag);
if (!data->layers[i]) goto fail;
data->layers[i]->sample_rate = fsb5->sample_rate;
data->layers[i]->num_samples = fsb5->num_samples;
data->layers[i]->loop_start_sample = fsb5->loop_start;
data->layers[i]->loop_end_sample = fsb5->loop_end;
#ifdef VGM_USE_ATRAC9
{
atrac9_config cfg = {0};
cfg.channels = layer_channels;
cfg.config_data = config;
//cfg.encoder_delay = 0x100; //todo not used? num_samples seems to count all data
data->layers[i]->codec_data = init_atrac9(&cfg);
if (!data->layers[i]->codec_data) goto fail;
data->layers[i]->coding_type = coding_ATRAC9;
data->layers[i]->layout_type = layout_none;
}
#else
goto fail;
#endif
temp_streamFile = setup_fsb5_interleave_streamfile(streamFile, fsb5->stream_offset, fsb5->stream_size, layers, i, FSB5_INT_ATRAC9, interleave);
if (!temp_streamFile) goto fail;
if (!vgmstream_open_stream(data->layers[i], temp_streamFile, 0x00))
goto fail;
}
/* setup layered VGMSTREAMs */
if (!setup_layout_layered(data))
goto fail;
close_streamfile(temp_streamFile);
return data;
fail:
close_streamfile(temp_streamFile);
free_layout_layered(data);
return NULL;
}
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