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https://github.com/vgmstream/vgmstream.git
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240 lines
9.7 KiB
C
240 lines
9.7 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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/* SXD - Sony/SCE's SNDX lib format (cousin of SGXD) [Gravity Rush, Freedom Wars, Soul Sacrifice PSV] */
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VGMSTREAM * init_vgmstream_sxd(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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STREAMFILE *streamHeader = NULL, *streamExternal = NULL, *streamData = NULL, *streamHead = NULL, *streamBody = NULL;
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off_t start_offset, chunk_offset, first_offset = 0x60, name_offset = 0;
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size_t chunk_size, stream_size = 0;
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int is_dual, is_external;
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int loop_flag, channels, codec, flags;
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int sample_rate, num_samples, loop_start_sample, loop_end_sample;
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uint32_t at9_config_data = 0;
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int total_subsongs, target_subsong = streamFile->stream_index;
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/* checks */
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/* .sxd: header+data (SXDF)
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* .sxd1: header (SXDF) + .sxd2 = data (SXDS)
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* .sxd3: sxd1 + sxd2 pasted together (found in some PS4 games, ex. Fate Extella)*/
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if (!check_extensions(streamFile,"sxd,sxd2,sxd3"))
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goto fail;
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/* setup head/body variations */
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if (check_extensions(streamFile,"sxd2")) {
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/* sxd1+sxd2: open sxd1 as header */
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streamHead = open_streamfile_by_ext(streamFile, "sxd1");
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if (!streamHead) goto fail;
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streamHeader = streamHead;
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streamExternal = streamFile;
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is_dual = 1;
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}
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else if (check_extensions(streamFile,"sxd3")) {
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/* sxd3: make subfiles for head and body to simplify parsing */
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off_t sxd1_offset = 0x00;
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size_t sxd1_size = read_32bitLE(0x08, streamFile);
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off_t sxd2_offset = sxd1_size;
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size_t sxd2_size = get_streamfile_size(streamFile) - sxd1_size;
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streamHead = setup_subfile_streamfile(streamFile, sxd1_offset, sxd1_size, "sxd1");
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if (!streamHead) goto fail;
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streamBody = setup_subfile_streamfile(streamFile, sxd2_offset, sxd2_size, "sxd2");
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if (!streamBody) goto fail;
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streamHeader = streamHead;
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streamExternal = streamBody;
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is_dual = 1;
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}
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else {
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/* sxd: use the current file as header */
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streamHeader = streamFile;
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streamExternal = NULL;
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is_dual = 0;
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}
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if (streamHeader && read_32bitBE(0x00,streamHeader) != 0x53584446) /* "SXDF" */
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goto fail;
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if (streamExternal && read_32bitBE(0x00,streamExternal) != 0x53584453) /* "SXDS" */
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goto fail;
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/* typical chunks: NAME, WAVE and many control chunks (SXDs don't need to contain any sound data) */
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if (!find_chunk_le(streamHeader, 0x57415645,first_offset,0, &chunk_offset,&chunk_size)) /* "WAVE" */
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goto fail;
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/* check multi-streams (usually only in SFX containers) */
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total_subsongs = read_32bitLE(chunk_offset+0x04,streamHeader);
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if (target_subsong == 0) target_subsong = 1;
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if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
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// todo rarely a WAVE subsong may point to a repeated data offset, with different tags only
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/* read stream header */
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{
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off_t table_offset, header_offset, stream_offset;
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/* get target offset using table of relative offsets within WAVE */
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table_offset = chunk_offset + 0x08 + 4*(target_subsong-1);
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header_offset = table_offset + read_32bitLE(table_offset,streamHeader);
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flags = read_32bitLE(header_offset+0x00,streamHeader);
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codec = read_8bit (header_offset+0x04,streamHeader);
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channels = read_8bit (header_offset+0x05,streamHeader);
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/* 0x06(2): unknown, rarely 0xFF */
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sample_rate = read_32bitLE(header_offset+0x08,streamHeader);
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/* 0x0c(4): unknown size? (0x4000/0x3999/0x3333/etc, not related to extra data) */
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/* 0x10(4): ? + volume? + pan? (can be 0 for music) */
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num_samples = read_32bitLE(header_offset+0x14,streamHeader);
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loop_start_sample = read_32bitLE(header_offset+0x18,streamHeader);
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loop_end_sample = read_32bitLE(header_offset+0x1c,streamHeader);
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stream_size = read_32bitLE(header_offset+0x20,streamHeader);
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stream_offset = read_32bitLE(header_offset+0x24,streamHeader);
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loop_flag = loop_start_sample != -1 && loop_end_sample != -1;
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/* known flag combos:
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* 0x00: Chaos Rings 2 sfx (RAM + no tags)
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* 0x01: common (RAM + tags)
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* 0x02: Chaos Rings 3 sfx (stream + no tags)
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* 0x03: common (stream + tags)
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* 0x05: Gravity Rush 2 sfx (RAM + tags) */
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//has_tags = flags & 1;
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is_external = flags & 2;
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//unknown = flags & 4; /* no apparent differences with/without it? */
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/* flag 1 signals TLV-like extra data. Format appears to be 0x00(1)=tag?, 0x01(1)=extra size*32b?, 0x02(2)=config?
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* but not always (ex. size=0x07 but actually=0), perhaps only some bits are used or varies with tag, or are subflags.
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* A tag may appear with or without extra data (even 0x0a), 0x01/03/04/06 are common at the beginnig (imply number of tags?),
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* 0x64/7F are common at the end (but not always), 0x0A=ATRAC9 config, 0x0B/0C appear with RAM preloading data
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* (most variable in Soul Sacrifice; total TLVs size isn't plainly found in the SXD header AFAIK). */
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/* manually try to find ATRAC9 tag */
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if (codec == 0x42) {
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off_t extra_offset = header_offset+0x28;
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off_t max_offset = chunk_offset + chunk_size;
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if (!(flags & 1))
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goto fail;
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while (extra_offset < max_offset) {
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uint32_t tag = read_32bitBE(extra_offset, streamHeader);
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if (tag == 0x0A010000 || tag == 0x0A010600) {
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at9_config_data = read_32bitLE(extra_offset+0x04,streamHeader); /* yes, LE */
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break;
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}
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extra_offset += 0x04;
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}
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if (!at9_config_data)
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goto fail;
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}
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/* usually .sxd=header+data and .sxd1=header + .sxd2=data, but rarely sxd1 may contain data [The Last Guardian (PS4)] */
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if (is_external) {
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start_offset = stream_offset; /* absolute if external */
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} else {
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start_offset = header_offset+0x24 + stream_offset; /* from current entry offset if internal */
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}
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}
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/* get stream name (NAME is tied to REQD/cues, and SFX cues repeat WAVEs, but should work ok for streams) */
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if (is_dual && find_chunk_le(streamHeader, 0x4E414D45,first_offset,0, &chunk_offset,NULL)) { /* "NAME" */
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/* table: relative offset (32b) + hash? (32b) + cue index (32b) */
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int i;
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int num_entries = read_16bitLE(chunk_offset+0x04,streamHeader); /* can be bigger than streams */
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for (i = 0; i < num_entries; i++) {
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uint32_t index = (uint32_t)read_32bitLE(chunk_offset+0x08 + 0x08 + i*0x0c,streamHeader);
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if (index+1 == target_subsong) {
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name_offset = chunk_offset+0x08 + 0x00 + i*0x0c + read_32bitLE(chunk_offset+0x08 + 0x00 + i*0x0c,streamHeader);
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break;
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}
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}
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}
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if (is_external && !is_dual) {
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VGM_LOG("SXD: found single sxd with external data\n");
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goto fail;
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}
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/* even dual files may have some non-external streams */
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if (is_external) {
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streamData = streamExternal;
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} else {
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streamData = streamHeader;
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}
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if (start_offset > get_streamfile_size(streamData)) {
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VGM_LOG("SXD: wrong location?\n");
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goto fail;
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}
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels,loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->sample_rate = sample_rate;
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vgmstream->num_samples = num_samples;
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vgmstream->loop_start_sample = loop_start_sample;
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vgmstream->loop_end_sample = loop_end_sample;
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vgmstream->num_streams = total_subsongs;
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vgmstream->stream_size = stream_size;
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vgmstream->meta_type = meta_SXD;
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if (name_offset)
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read_string(vgmstream->stream_name,STREAM_NAME_SIZE, name_offset,streamHeader);
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switch (codec) {
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case 0x20: /* PS-ADPCM [Hot Shots Golf: World Invitational (Vita) sfx] */
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vgmstream->coding_type = coding_PSX;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x10;
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break;
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case 0x21: /* HEVAG [Gravity Rush (Vita) sfx] */
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vgmstream->coding_type = coding_HEVAG;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = 0x10;
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break;
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#ifdef VGM_USE_ATRAC9
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case 0x42: { /* ATRAC9 [Soul Sacrifice (Vita), Freedom Wars (Vita), Gravity Rush 2 (PS4)] */
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atrac9_config cfg = {0};
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cfg.channels = vgmstream->channels;
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cfg.config_data = at9_config_data;
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vgmstream->codec_data = init_atrac9(&cfg);
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if (!vgmstream->codec_data) goto fail;
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vgmstream->coding_type = coding_ATRAC9;
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vgmstream->layout_type = layout_none;
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break;
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}
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#endif
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//case 0x28: /* dummy codec? (found with 0 samples) [Hot Shots Golf: World Invitational (Vita) sfx] */
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default:
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VGM_LOG("SXD: unknown codec 0x%x\n", codec);
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goto fail;
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}
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/* open the file for reading */
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if (!vgmstream_open_stream(vgmstream,streamData,start_offset))
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goto fail;
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if (streamHead) close_streamfile(streamHead);
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if (streamBody) close_streamfile(streamBody);
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return vgmstream;
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fail:
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if (streamHead) close_streamfile(streamHead);
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if (streamBody) close_streamfile(streamBody);
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close_vgmstream(vgmstream);
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return NULL;
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}
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