vgmstream/src/meta/sxd.c
2018-07-21 21:58:18 +03:00

204 lines
8.2 KiB
C

#include "meta.h"
#include "../coding/coding.h"
/* SXD - Sony/SCE's SNDX lib format (cousin of SGXD) [Gravity Rush, Freedom Wars, Soul Sacrifice PSV] */
VGMSTREAM * init_vgmstream_sxd(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE * streamHeader = NULL, *streamData = NULL;
off_t start_offset, chunk_offset, first_offset = 0x60, name_offset = 0;
size_t chunk_size, stream_size = 0;
int is_dual = 0, is_external = 0;
int loop_flag, channels, codec, location;
int sample_rate, num_samples, loop_start_sample, loop_end_sample;
uint32_t at9_config_data = 0;
int total_subsongs, target_subsong = streamFile->stream_index;
/* check extension, case insensitive */
/* .sxd: header+data (SXDF), .sxd1: header (SXDF) + .sxd2 = data (SXDS) */
if (!check_extensions(streamFile,"sxd,sxd2")) goto fail;
is_dual = !check_extensions(streamFile,"sxd");
/* sxd1+sxd2: use sxd1 as header; otherwise use the current file as header */
if (is_dual) {
if (read_32bitBE(0x00,streamFile) != 0x53584453) /* "SXDS" */
goto fail;
streamHeader = open_streamfile_by_ext(streamFile, "sxd1");
if (!streamHeader) goto fail;
} else {
streamHeader = streamFile;
}
if (read_32bitBE(0x00,streamHeader) != 0x53584446) /* "SXDF" */
goto fail;
/* typical chunks: NAME, WAVE and many control chunks (SXDs don't need to contain any sound data) */
if (!find_chunk_le(streamHeader, 0x57415645,first_offset,0, &chunk_offset,&chunk_size)) goto fail; /* "WAVE" */
/* check multi-streams (usually only in SFX containers) */
total_subsongs = read_32bitLE(chunk_offset+0x04,streamHeader);
if (target_subsong == 0) target_subsong = 1;
if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
/* read stream header */
{
off_t table_offset, header_offset, stream_offset;
/* get target offset using table of relative offsets within WAVE */
table_offset = chunk_offset + 0x08 + 4*(target_subsong-1);
header_offset = table_offset + read_32bitLE(table_offset,streamHeader);
location = read_32bitLE(header_offset+0x00,streamHeader);
codec = read_8bit (header_offset+0x04,streamHeader);
channels = read_8bit (header_offset+0x05,streamHeader);
sample_rate = read_32bitLE(header_offset+0x08,streamHeader);
/* 0x0c(4): unknown size? (0x4000/0x3999/0x3333/etc, not related to extra data) */
/* 0x10(4): ? + volume? + pan? (can be 0 for music) */
num_samples = read_32bitLE(header_offset+0x14,streamHeader);
loop_start_sample = read_32bitLE(header_offset+0x18,streamHeader);
loop_end_sample = read_32bitLE(header_offset+0x1c,streamHeader);
stream_size = read_32bitLE(header_offset+0x20,streamHeader);
stream_offset = read_32bitLE(header_offset+0x24,streamHeader);
/* Extra data, variable sized and uses some kind of TLVs (HEVAG's is optional and much smaller).
* One tag seems to add a small part of the ATRAC9 data, for RAM preloding I guess. */
if (codec == 0x42) {
off_t extra_offset = header_offset+0x28;
off_t max_offset = chunk_offset + chunk_size;
/* manually try to find certain tag, no idea about the actual format
* (most variable in Soul Sacrifice; extra data size isn't found in the header AFAIK) */
while (extra_offset < max_offset) {
uint32_t tag = read_32bitBE(extra_offset, streamHeader);
if (tag == 0x0A010000 || tag == 0x0A010600) {
at9_config_data = read_32bitLE(extra_offset+0x04,streamHeader); /* yes, LE */
break;
}
extra_offset += 0x04;
}
if (!at9_config_data)
goto fail;
}
loop_flag = loop_start_sample != -1 && loop_end_sample != -1;
/* usually sxd=header+data and sxd1=header + sxd2=data, but rarely sxd1 contain data [The Last Guardian (PS4)] */
switch(location) { /* might not be exact but seems the only difference in TLG */
case 0x00: /* some Chaos Rings 2 sfx */
case 0x01: /* most common */
case 0x05: /* some Gradity Rush 2 sfx */
is_external = 0; /* RAM asset? */
break;
case 0x02: /* some Chaos Rings 3 sfx */
case 0x03: /* most common */
is_external = 1; /* stream asset? */
break;
default:
VGM_LOG("SXD: unknown location 0x%x\n", location);
goto fail;
}
if (is_external) {
start_offset = stream_offset; /* absolute if external */
} else {
start_offset = header_offset+0x24 + stream_offset; /* from current entry offset if internal */
}
}
/* get stream name (NAME is tied to REQD/cues, and SFX cues repeat WAVEs, but should work ok for streams) */
if (is_dual && find_chunk_le(streamHeader, 0x4E414D45,first_offset,0, &chunk_offset,NULL)) { /* "NAME" */
/* table: relative offset (32b) + hash? (32b) + cue index (32b) */
int i;
int num_entries = read_16bitLE(chunk_offset+0x04,streamHeader); /* can be bigger than streams */
for (i = 0; i < num_entries; i++) {
uint32_t index = (uint32_t)read_32bitLE(chunk_offset+0x08 + 0x08 + i*0x0c,streamHeader);
if (index+1 == target_subsong) {
name_offset = chunk_offset+0x08 + 0x00 + i*0x0c + read_32bitLE(chunk_offset+0x08 + 0x00 + i*0x0c,streamHeader);
break;
}
}
}
if (is_external && !is_dual) {
VGM_LOG("SXD: found single sxd with external data\n");
goto fail;
}
if (is_external) {
streamData = streamFile;
} else {
streamData = streamHeader;
}
if (start_offset > get_streamfile_size(streamData)) {
VGM_LOG("SXD: wrong location?\n");
goto fail;
}
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channels,loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = sample_rate;
vgmstream->num_samples = num_samples;
vgmstream->loop_start_sample = loop_start_sample;
vgmstream->loop_end_sample = loop_end_sample;
vgmstream->num_streams = total_subsongs;
vgmstream->stream_size = stream_size;
vgmstream->meta_type = meta_SXD;
if (name_offset)
read_string(vgmstream->stream_name,STREAM_NAME_SIZE, name_offset,streamHeader);
switch (codec) {
case 0x20: /* PS-ADPCM [Hot Shots Golf: World Invitational (Vita) sfx] */
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x10;
break;
case 0x21: /* HEVAG [Gravity Rush (Vita) sfx] */
vgmstream->coding_type = coding_HEVAG;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x10;
break;
#ifdef VGM_USE_ATRAC9
case 0x42: { /* ATRAC9 [Soul Sacrifice (Vita), Freedom Wars (Vita), Gravity Rush 2 (PS4)] */
atrac9_config cfg = {0};
cfg.channels = vgmstream->channels;
cfg.config_data = at9_config_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
//case 0x28: /* dummy codec? (found with 0 samples) [Hot Shots Golf: World Invitational (Vita) sfx] */
default:
VGM_LOG("SXD: unknown codec 0x%x\n", codec);
goto fail;
}
/* open the file for reading */
if (!vgmstream_open_stream(vgmstream,streamData,start_offset))
goto fail;
if (is_dual) close_streamfile(streamHeader);
return vgmstream;
fail:
if (is_dual) close_streamfile(streamHeader);
close_vgmstream(vgmstream);
return NULL;
}