mirror of
https://github.com/vgmstream/vgmstream.git
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246 lines
8.3 KiB
C
246 lines
8.3 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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typedef enum { ADX, HCA, VAG, RIFF, CWAV, DSP, CWAC, M4A } awb_type;
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static void load_awb_name(STREAMFILE* sf, STREAMFILE* sf_acb, VGMSTREAM* vgmstream, int waveid);
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/* AFS2/AWB (Atom Wave Bank) - CRI container of streaming audio, often together with a .acb cue sheet */
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VGMSTREAM* init_vgmstream_awb(STREAMFILE* sf) {
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return init_vgmstream_awb_memory(sf, NULL);
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}
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VGMSTREAM* init_vgmstream_awb_memory(STREAMFILE* sf, STREAMFILE* sf_acb) {
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VGMSTREAM* vgmstream = NULL;
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STREAMFILE* temp_sf = NULL;
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off_t offset, subfile_offset, subfile_next;
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size_t subfile_size;
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int total_subsongs, target_subsong = sf->stream_index;
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//uint32_t flags;
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uint8_t offset_size;
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uint16_t alignment, subkey;
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awb_type type;
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const char* extension = NULL;
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int waveid;
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/* checks
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* .awb: standard
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* .afs2: sometimes [Okami HD (PS4)] */
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if (!check_extensions(sf, "awb,afs2"))
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goto fail;
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if (read_u32be(0x00,sf) != 0x41465332) /* "AFS2" */
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goto fail;
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//flags = read_32bitLE(0x08,sf);
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/* 0x04(1): version? 0x01=common, 0x02=2018+ (no apparent differences) */
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offset_size = read_u8(0x05,sf);
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/* 0x06(2): always 0x0002? */
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total_subsongs = read_s32le(0x08,sf);
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alignment = read_u16le(0x0c,sf);
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subkey = read_u16le(0x0e,sf);
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if (target_subsong == 0) target_subsong = 1;
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if (target_subsong > total_subsongs || total_subsongs <= 0) goto fail;
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offset = 0x10;
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/* id(?) table: read target */
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{
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off_t waveid_offset = offset + (target_subsong-1) * 0x02;
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waveid = read_u16le(waveid_offset,sf);
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offset += total_subsongs * 0x02;
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}
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/* offset table: find target */
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{
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off_t file_size = get_streamfile_size(sf);
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/* last sub-offset is always file end, so table entries = total_subsongs+1 */
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offset += (target_subsong-1) * offset_size;
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switch(offset_size) {
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case 0x04: /* common */
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subfile_offset = read_u32le(offset+0x00,sf);
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subfile_next = read_u32le(offset+0x04,sf);
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break;
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case 0x02: /* mostly sfx in .acb */
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subfile_offset = read_u16le(offset+0x00,sf);
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subfile_next = read_u16le(offset+0x02,sf);
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break;
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default:
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VGM_LOG("AWB: unknown offset size\n");
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goto fail;
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}
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/* offset are absolute but sometimes misaligned (specially first that just points to offset table end) */
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subfile_offset += (subfile_offset % alignment) ?
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alignment - (subfile_offset % alignment) : 0;
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subfile_next += (subfile_next % alignment) && subfile_next < file_size ?
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alignment - (subfile_next % alignment) : 0;
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subfile_size = subfile_next - subfile_offset;
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}
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//;VGM_LOG("AWB: subfile offset=%lx + %x\n", subfile_offset, subfile_size);
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/* autodetect as there isn't anything, plus can mix types
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* (waveid<>codec info is usually in the companion .acb) */
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if (read_u16be(subfile_offset, sf) == 0x8000) { /* ADX id (type 0) */
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type = ADX;
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extension = "adx";
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}
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else if ((read_u32be(subfile_offset,sf) & 0x7f7f7f7f) == 0x48434100) { /* "HCA\0" (type 2=HCA, 6=HCA-MX) */
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type = HCA;
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extension = "hca";
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}
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else if (read_u32be(subfile_offset,sf) == 0x56414770) { /* "VAGp" (type 7=VAG, 10=HEVAG) */
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type = VAG;
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extension = "vag";
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}
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else if (read_u32be(subfile_offset,sf) == 0x52494646) { /* "RIFF" (type 8=ATRAC3, 11=ATRAC9) */
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type = RIFF;
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extension = "wav";
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subfile_size = read_u32le(subfile_offset + 0x04,sf) + 0x08; /* rough size, use RIFF's */
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}
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else if (read_u32be(subfile_offset,sf) == 0x43574156) { /* "CWAV" (type 9) */
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type = CWAV;
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extension = "bcwav";
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}
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else if (read_u32be(subfile_offset + 0x08,sf) >= 8000 &&
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read_u32be(subfile_offset + 0x08,sf) <= 48000 &&
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read_u16be(subfile_offset + 0x0e,sf) == 0 &&
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read_u32be(subfile_offset + 0x18,sf) == 2 &&
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read_u32be(subfile_offset + 0x50,sf) == 0) { /* probably should call some check function (type 13) */
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type = DSP;
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extension = "dsp";
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}
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else if (is_id32be(subfile_offset,sf, "CWAC")) { /* type 13 again */
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type = CWAC;
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extension = "dsp";
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}
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else if (read_u32be(subfile_offset+0x00,sf) == 0x00000018 &&
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read_u32be(subfile_offset+0x04,sf) == 0x66747970) { /* chunk size + "ftyp" (type 19) */
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type = M4A;
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extension = "m4a";
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}
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else {
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VGM_LOG("AWB: unknown codec\n");
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goto fail;
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}
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temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, extension);
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if (!temp_sf) goto fail;
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switch(type) {
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case HCA: /* most common */
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vgmstream = init_vgmstream_hca_subkey(temp_sf, subkey);
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if (!vgmstream) goto fail;
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break;
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case ADX: /* Okami HD (PS4) */
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vgmstream = init_vgmstream_adx_subkey(temp_sf, subkey);
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if (!vgmstream) goto fail;
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break;
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case VAG: /* Ukiyo no Roushi (Vita) */
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vgmstream = init_vgmstream_vag(temp_sf);
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if (!vgmstream) goto fail;
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break;
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case RIFF: /* Ukiyo no Roushi (Vita) */
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vgmstream = init_vgmstream_riff(temp_sf);
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if (!vgmstream) goto fail;
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break;
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case CWAV: /* Sonic: Lost World (3DS) */
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vgmstream = init_vgmstream_rwsd(temp_sf);
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if (!vgmstream) goto fail;
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break;
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case DSP: /* Sonic: Lost World (WiiU) */
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vgmstream = init_vgmstream_ngc_dsp_std(temp_sf);
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if (!vgmstream) goto fail;
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break;
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case CWAC: /* Mario & Sonic at the Rio 2016 Olympic Games (WiiU) */
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vgmstream = init_vgmstream_dsp_cwac(temp_sf);
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if (!vgmstream) goto fail;
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break;
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#ifdef VGM_USE_FFMPEG
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case M4A: /* Imperial SaGa Eclipse (Browser) */
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vgmstream = init_vgmstream_mp4_aac_ffmpeg(temp_sf);
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if (!vgmstream) goto fail;
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break;
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#endif
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default:
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goto fail;
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}
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vgmstream->num_streams = total_subsongs;
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/* try to load cue names */
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load_awb_name(sf, sf_acb, vgmstream, waveid);
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close_streamfile(temp_sf);
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return vgmstream;
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fail:
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close_streamfile(temp_sf);
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close_vgmstream(vgmstream);
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return NULL;
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}
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static void load_awb_name(STREAMFILE* sf, STREAMFILE* sf_acb, VGMSTREAM* vgmstream, int waveid) {
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int is_memory = (sf_acb != NULL);
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int port = 0;
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/* .acb is passed when loading memory .awb inside .acb */
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if (!is_memory) {
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/* load companion .acb using known pairs */ //todo improve, see xsb code
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char filename[PATH_LIMIT];
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int len_name, len_cmp;
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/* try parsing TXTM if present */
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sf_acb = read_filemap_file_pos(sf, 0, &port);
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/* try (name).awb + (name).awb */
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if (!sf_acb) {
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sf_acb = open_streamfile_by_ext(sf, "acb");
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}
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/* try (name)_streamfiles.awb + (name).acb */
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if (!sf_acb) {
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char *cmp = "_streamfiles";
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get_streamfile_basename(sf, filename, sizeof(filename));
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len_name = strlen(filename);
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len_cmp = strlen(cmp);
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if (len_name > len_cmp && strcmp(filename + len_name - len_cmp, cmp) == 0) {
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filename[len_name - len_cmp] = '\0';
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strcat(filename, ".acb");
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sf_acb = open_streamfile_by_filename(sf, filename);
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}
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}
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/* try (name)_STR.awb + (name).acb */
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if (!sf_acb) {
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char *cmp = "_STR";
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get_streamfile_basename(sf, filename, sizeof(filename));
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len_name = strlen(filename);
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len_cmp = strlen(cmp);
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if (len_name > len_cmp && strcmp(filename + len_name - len_cmp, cmp) == 0) {
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filename[len_name - len_cmp] = '\0';
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strcat(filename, ".acb");
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sf_acb = open_streamfile_by_filename(sf, filename);
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}
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}
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/* probably loaded */
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load_acb_wave_name(sf_acb, vgmstream, waveid, port, is_memory);
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close_streamfile(sf_acb);
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}
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else {
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load_acb_wave_name(sf_acb, vgmstream, waveid, port, is_memory);
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}
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}
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