#include "meta.h" #include "../layout/layout.h" #include "../coding/coding.h" #include "ea_schl_streamfile.h" /* header version */ #define EA_VERSION_NONE -1 #define EA_VERSION_V0 0x00 // ~early PC (when codec1 was used) #define EA_VERSION_V1 0x01 // ~PC #define EA_VERSION_V2 0x02 // ~PS era #define EA_VERSION_V3 0x03 // ~PS2 era /* platform constants (unasigned values seem internal only) */ #define EA_PLATFORM_GENERIC -1 // typically Wii/X360/PS3/videos #define EA_PLATFORM_PC 0x00 #define EA_PLATFORM_PSX 0x01 #define EA_PLATFORM_N64 0x02 #define EA_PLATFORM_MAC 0x03 #define EA_PLATFORM_SAT 0x04 #define EA_PLATFORM_PS2 0x05 #define EA_PLATFORM_GC_WII 0x06 // reused later for Wii #define EA_PLATFORM_XBOX 0x07 #define EA_PLATFORM_X360 0x09 // also "Xenon" #define EA_PLATFORM_PSP 0x0A #define EA_PLATFORM_PS3 0x0E // very rare [Need for Speed: Carbon (PS3)] #define EA_PLATFORM_3DS 0x14 /* codec constants (undefined are probably reserved, ie.- sx.exe encodes PCM24/DVI but no platform decodes them) */ /* CODEC1 values were used early, then they migrated to CODEC2 values */ #define EA_CODEC1_NONE -1 #define EA_CODEC1_PCM 0x00 #define EA_CODEC1_VAG 0x01 // unsure #define EA_CODEC1_EAXA 0x07 #define EA_CODEC1_MT10 0x09 //#define EA_CODEC1_N64 ? #define EA_CODEC2_NONE -1 #define EA_CODEC2_MT10 0x04 #define EA_CODEC2_VAG 0x05 #define EA_CODEC2_S16BE 0x07 #define EA_CODEC2_S16LE 0x08 #define EA_CODEC2_S8 0x09 #define EA_CODEC2_EAXA 0x0A #define EA_CODEC2_LAYER2 0x0F #define EA_CODEC2_LAYER3 0x10 #define EA_CODEC2_GCADPCM 0x12 #define EA_CODEC2_XBOXADPCM 0x14 #define EA_CODEC2_MT5 0x16 #define EA_CODEC2_EALAYER3 0x17 #define EA_CODEC2_ATRAC3PLUS 0x1B /* Block headers, SCxy - where x is block ID and y is endianness flag (always 'l'?) */ #define EA_BLOCKID_HEADER 0x5343486C /* "SCHl" */ #define EA_BLOCKID_COUNT 0x5343436C /* "SCCl" */ #define EA_BLOCKID_DATA 0x5343446C /* "SCDl" */ #define EA_BLOCKID_LOOP 0x53434C6C /* "SCLl */ #define EA_BLOCKID_END 0x5343456C /* "SCEl" */ /* Localized block headers, Sxyy - where x is block ID and yy is lang code (e.g. "SHEN"), used in videos */ #define EA_BLOCKID_LOC_HEADER 0x53480000 /* "SH" */ #define EA_BLOCKID_LOC_COUNT 0x53430000 /* "SC" */ #define EA_BLOCKID_LOC_DATA 0x53440000 /* "SD" */ #define EA_BLOCKID_LOC_END 0x53450000 /* "SE" */ #define EA_BLOCKID_LOC_EN 0x0000454E #define EA_BLOCKID_LOC_FR 0x00004652 #define EA_BLOCKID_LOC_GE 0x00004745 #define EA_BLOCKID_LOC_IT 0x00004954 #define EA_BLOCKID_LOC_SP 0x00005350 #define EA_BLOCKID_LOC_RU 0x00005255 #define EA_BLOCKID_LOC_JA 0x00004A41 #define EA_BNK_HEADER_LE 0x424E4B6C /* "BNKl" */ #define EA_BNK_HEADER_BE 0x424E4B62 /* "BNKb" */ #define EA_MAX_CHANNELS 6 typedef struct { int32_t num_samples; int32_t sample_rate; int32_t channels; int32_t platform; int32_t version; int32_t bps; int32_t codec1; int32_t codec2; int32_t loop_start; int32_t loop_end; off_t offsets[EA_MAX_CHANNELS]; off_t coefs[EA_MAX_CHANNELS]; off_t loops[EA_MAX_CHANNELS]; int big_endian; int loop_flag; int codec_config; } ea_header; static VGMSTREAM * parse_schl_block(STREAMFILE *streamFile, off_t offset, int total_streams); static VGMSTREAM * parse_bnk_header(STREAMFILE *streamFile, off_t offset, int target_stream, int total_streams); static int parse_variable_header(STREAMFILE* streamFile, ea_header* ea, off_t begin_offset, int max_length, int bnk_version); static uint32_t read_patch(STREAMFILE* streamFile, off_t* offset); static int get_ea_stream_total_samples(STREAMFILE* streamFile, off_t start_offset, VGMSTREAM* vgmstream); static off_t get_ea_stream_mpeg_start_offset(STREAMFILE* streamFile, off_t start_offset, const ea_header* ea); static VGMSTREAM * init_vgmstream_ea_variable_header(STREAMFILE *streamFile, ea_header *ea, off_t start_offset, int is_bnk, int total_streams); /* EA SCHl with variable header - from EA games (roughly 1997~2010); generated by EA Canada's sx.exe/Sound eXchange */ VGMSTREAM * init_vgmstream_ea_schl(STREAMFILE *streamFile) { /* check extension; exts don't seem enforced by EA's tools, but usually: * STR/ASF/MUS ~early, EAM ~mid, SNG/AUD ~late, rest uncommon/one game (ex. STRM: MySims Kingdom Wii) */ if (!check_extensions(streamFile,"str,asf,mus,eam,sng,aud,sx,strm,xa,xsf,exa,stm,trj,trm")) goto fail; /* check header */ if (read_32bitBE(0x00,streamFile) != EA_BLOCKID_HEADER && /* "SCHl" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_EN) && /* "SHEN" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_FR) && /* "SHFR" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_GE) && /* "SHGE" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_IT) && /* "SHIT" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_SP) && /* "SHSP" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_RU) && /* "SHRU" */ read_32bitBE(0x00,streamFile) != (EA_BLOCKID_LOC_HEADER | EA_BLOCKID_LOC_JA)) /* "SHJA" */ goto fail; /* Stream is divided into blocks/chunks: SCHl=audio header, SCCl=count of SCDl, SCDl=data xN, SCLl=loop end, SCEl=end. * Video uses picture blocks (MVhd/MV0K/etc) and sometimes multiaudio blocks (SHxx/SCxx/SDxx/SExx where xx=language=EN/FR/GE/IT/SP/RU/JA). * The number/size is affected by: block rate setting, sample rate, channels, CPU location (SPU/main/DSP/others), etc */ return parse_schl_block(streamFile, 0x00, 0); fail: return NULL; } /* EA BNK with variable header - from EA games SFXs; also created by sx.exe */ VGMSTREAM * init_vgmstream_ea_bnk(STREAMFILE *streamFile) { off_t offset; /* check extension */ /* .bnk: sfx, .sdt: speech, .mus: streams/jingles (rare) */ if (!check_extensions(streamFile,"bnk,sdt,mus")) goto fail; /* check header (doesn't use EA blocks, otherwise very similar to SCHl) */ if (read_32bitBE(0x100,streamFile) == EA_BNK_HEADER_LE) offset = 0x100; /* Harry Potter and the Goblet of Fire (PS2) .mus have weird extra 0x100 bytes */ else offset = 0x00; return parse_bnk_header(streamFile, offset, streamFile->stream_index, 0); fail: return NULL; } /* EA ABK - common soundbank format in 6th-gen games, can reference RAM and streamed assets */ /* RAM assets are stored in embedded BNK file */ /* streamed assets are stored externally in AST file (mostly seen in earlier 6th-gen games) */ VGMSTREAM * init_vgmstream_ea_abk(STREAMFILE *streamFile) { int bnk_target_stream, is_dupe, total_sounds = 0, target_stream = streamFile->stream_index; off_t bnk_offset, header_table_offset, base_offset, value_offset, table_offset, entry_offset, target_entry_offset, schl_offset; uint32_t i, j, k, num_sounds, total_sound_tables; uint16_t num_tables; uint8_t sound_type, num_entries; off_t sound_table_offsets[0x2000]; STREAMFILE * astData = NULL; VGMSTREAM * vgmstream; int32_t (*read_32bit)(off_t,STREAMFILE*); int16_t (*read_16bit)(off_t,STREAMFILE*); /* check extension */ if (!check_extensions(streamFile, "abk")) goto fail; if (read_32bitBE(0x00, streamFile) != 0x41424B43) /* "ABKC" */ goto fail; /* use table offset to check endianness */ if (guess_endianness32bit(0x1C,streamFile)) { read_32bit = read_32bitBE; read_16bit = read_16bitBE; } else { read_32bit = read_32bitLE; read_16bit = read_16bitLE; } if (target_stream == 0) target_stream = 1; if (target_stream < 0) goto fail; num_tables = read_16bit(0x0A, streamFile); header_table_offset = read_32bit(0x1C, streamFile); bnk_offset = read_32bit(0x20, streamFile); target_entry_offset = 0; total_sound_tables = 0; /* check to avoid clashing with the newer ABK format */ if (bnk_offset && read_32bitBE(bnk_offset, streamFile) != EA_BNK_HEADER_LE && read_32bitBE(bnk_offset, streamFile) != EA_BNK_HEADER_BE) goto fail; for (i = 0; i < num_tables; i++) { num_entries = read_8bit(header_table_offset + 0x24, streamFile); base_offset = read_32bit(header_table_offset + 0x2C, streamFile); if (num_entries == 0xff) goto fail; /* EOF read */ for (j = 0; j < num_entries; j++) { value_offset = read_32bit(header_table_offset + 0x3C + 0x04 * j, streamFile); table_offset = read_32bit(base_offset + value_offset + 0x04, streamFile); /* For some reason, there are duplicate entries pointing at the same sound tables */ is_dupe = 0; for (k = 0; k < total_sound_tables; k++) { if (table_offset==sound_table_offsets[k]) { is_dupe = 1; break; } } if (is_dupe) continue; sound_table_offsets[total_sound_tables++] = table_offset; num_sounds = read_32bit(table_offset, streamFile); if (num_sounds == 0xffffffff) goto fail; /* EOF read */ for (k = 0; k < num_sounds; k++) { entry_offset = table_offset + 0x04 + 0x0C * k; sound_type = read_8bit(entry_offset + 0x00, streamFile); /* some of these dummies pointing at sound 0 in BNK */ if (sound_type == 0x00 && read_32bit(entry_offset + 0x04, streamFile) == 0) continue; total_sounds++; if (target_stream == total_sounds) target_entry_offset = entry_offset; } } /* there can be another set of values, don't know what they mean */ num_entries += read_8bit(header_table_offset + 0x27, streamFile); header_table_offset += 0x3C + num_entries * 0x04; } if (target_entry_offset == 0) goto fail; /* 0x00: type (0x00 - normal, 0x01 - streamed, 0x02 - streamed and prefetched(?) */ /* 0x01: ??? */ /* 0x04: index for normal sounds, offset for streamed sounds */ /* 0x08: offset for prefetched sounds */ sound_type = read_8bit(target_entry_offset + 0x00, streamFile); switch (sound_type) { case 0x00: if (!bnk_offset) goto fail; bnk_target_stream = read_32bit(target_entry_offset + 0x04, streamFile) + 1; vgmstream = parse_bnk_header(streamFile, bnk_offset, bnk_target_stream, total_sounds); if (!vgmstream) goto fail; break; case 0x01: case 0x02: astData = open_streamfile_by_ext(streamFile, "ast"); if (!astData) goto fail; if (sound_type == 0x01) schl_offset = read_32bit(target_entry_offset + 0x04, streamFile); else schl_offset = read_32bit(target_entry_offset + 0x08, streamFile); if (read_32bitBE(schl_offset, astData) != EA_BLOCKID_HEADER) goto fail; vgmstream = parse_schl_block(astData, schl_offset, total_sounds); if (!vgmstream) goto fail; break; default: goto fail; break; } close_streamfile(astData); return vgmstream; fail: close_streamfile(astData); return NULL; } /* EA HDR/DAT combo - seen in late 6th-gen games, used for storing speech and other streamed sounds (except for music) */ VGMSTREAM * init_vgmstream_ea_hdr_dat(STREAMFILE *streamFile) { int target_stream = streamFile->stream_index; uint8_t userdata_size, total_sounds; off_t schl_offset, offset_mult; STREAMFILE *datFile = NULL; VGMSTREAM *vgmstream; /* main header's endianness is platform-native but we only care about one byte values */ /* 0x00: ID */ /* 0x02: sub-ID (used for different police voices in NFS games) */ /* 0x04: (low nibble) userdata size */ /* 0x04: (high nibble) ??? */ /* 0x05: number of files */ /* 0x06: ??? */ /* 0x07: offset multiplier flag */ /* 0x08: combined size of all sounds without padding divided by 0x0100 */ /* 0x0C: table start */ /* no nice way to validate these so we do what we can */ /* must be accompanied by DAT file with SCHl sounds */ datFile = open_streamfile_by_ext(streamFile, "dat"); if (!datFile) goto fail; if (read_32bitBE(0x00, datFile) != EA_BLOCKID_HEADER) goto fail; userdata_size = read_8bit(0x04, streamFile) & 0x0F; total_sounds = read_8bit(0x05, streamFile); offset_mult = (off_t)read_8bit(0x07, streamFile) * 0x0100 + 0x0100; if (target_stream == 0) target_stream = 1; if (target_stream < 0 || total_sounds == 0 || target_stream > total_sounds) goto fail; /* offsets are always big endian */ schl_offset = (off_t)read_16bitBE(0x0C + (0x02+userdata_size) * (target_stream-1), streamFile) * offset_mult; if (read_32bitBE(schl_offset, datFile) != EA_BLOCKID_HEADER) goto fail; vgmstream = parse_schl_block(datFile, schl_offset, total_sounds); if (!vgmstream) goto fail; close_streamfile(datFile); return vgmstream; fail: close_streamfile(datFile); return NULL; } /* EA MPF/MUS combo - used in newer 6th gen games for storing music */ VGMSTREAM * init_vgmstream_ea_mpf_mus(STREAMFILE *streamFile) { off_t section_offset, entry_offset, subentry_num, eof_offset, schl_offset; uint16_t sec1_num; uint8_t version, sub_version, sec2_num; int32_t(*read_32bit)(off_t, STREAMFILE*); int16_t(*read_16bit)(off_t, STREAMFILE*); STREAMFILE *musFile = NULL; VGMSTREAM *vgmstream = NULL; int target_stream = streamFile->stream_index, total_streams; /* check extension */ if (!check_extensions(streamFile, "mpf")) goto fail; /* detect endianness */ if (read_32bitBE(0x00, streamFile) == 0x50464478) { /* "PFDx" */ read_32bit = read_32bitBE; read_16bit = read_16bitBE; } else if (read_32bitBE(0x00, streamFile) == 0x78444650) { /* "xDFP" */ read_32bit = read_32bitLE; read_16bit = read_16bitLE; } else { goto fail; } musFile = open_streamfile_by_ext(streamFile, "mus"); if (!musFile) goto fail; version = read_8bit(0x04, streamFile); sub_version = read_8bit(0x05, streamFile); if (version < 0x04 || version > 0x05) goto fail; if (version == 0x05 && sub_version > 0x02) goto fail; /* newer version using SNR/SNS */ if (version == 0x04) { /* we need to go through the first two sections to find sound table */ sec1_num = read_16bit(0x12, streamFile); sec2_num = read_8bit(0x0f, streamFile); /* get the last entry offset */ section_offset = 0x20; entry_offset = read_16bit(section_offset + (sec1_num - 1) * 0x02, streamFile) * 0x04; /* HACK: there's some weird bitstream here that's store differently in LE and BE */ /* I can't figure it out, so let's just use a workaround for now */ if (read_32bitBE(0x00, streamFile) == 0x50464478) { subentry_num = (read_32bitBE(entry_offset + 0x04, streamFile) >> 15) & 0xFF; } else { subentry_num = (read_32bitBE(entry_offset + 0x04, streamFile) >> 20) & 0xFF; } section_offset = entry_offset + 0x10 + subentry_num * 0x04; entry_offset = read_16bit(section_offset + (sec2_num - 1) * 0x02, streamFile) * 0x04; subentry_num = read_16bit(entry_offset + 0x0e, streamFile); section_offset = entry_offset + 0x10 + subentry_num * 0x10; entry_offset = read_32bit(section_offset, streamFile) * 0x04; section_offset = read_32bit(entry_offset + 0x00, streamFile) * 0x04; eof_offset = read_32bit(entry_offset + 0x04, streamFile) * 0x04; total_streams = (eof_offset - section_offset) / 0x08; } else if (version == 0x05) { section_offset = read_32bit(0x34, streamFile); eof_offset = read_32bit(0x38, streamFile); total_streams = (eof_offset - section_offset) / 0x08; } if (target_stream == 0) target_stream = 1; if (target_stream < 0 || total_streams == 0 || target_stream > total_streams) goto fail; schl_offset = read_32bit(section_offset + (target_stream - 1) * 0x08 + 0x00, streamFile) * 0x80; if (read_32bitBE(schl_offset, musFile) != EA_BLOCKID_HEADER) goto fail; vgmstream = parse_schl_block(musFile, schl_offset, total_streams); if (!vgmstream) goto fail; close_streamfile(musFile); return vgmstream; fail: close_streamfile(musFile); return NULL; } /* EA SCHl with variable header - from EA games (roughly 1997~2010); generated by EA Canada's sx.exe/Sound eXchange */ static VGMSTREAM * parse_schl_block(STREAMFILE *streamFile, off_t offset, int total_streams) { off_t start_offset, header_offset; size_t header_size; ea_header ea = { 0 }; if (guess_endianness32bit(offset + 0x04, streamFile)) { /* size is always LE, except in early SS/MAC */ header_size = read_32bitBE(offset + 0x04, streamFile); ea.codec_config |= 0x02; } else { header_size = read_32bitLE(offset + 0x04, streamFile); } header_offset = offset + 0x08; if (!parse_variable_header(streamFile, &ea, header_offset, header_size - 0x08, 0)) goto fail; start_offset = offset + header_size; /* starts in "SCCl" (skipped in block layout) or very rarely "SCDl" and maybe movie blocks */ /* rest is common */ return init_vgmstream_ea_variable_header(streamFile, &ea, start_offset, 0, total_streams); fail: return NULL; } /* EA BNK with variable header - from EA games SFXs; also created by sx.exe */ static VGMSTREAM * parse_bnk_header(STREAMFILE *streamFile, off_t offset, int target_stream, int total_streams) { off_t header_offset, start_offset, test_offset, table_offset; size_t header_size; ea_header ea = {0}; int32_t (*read_32bit)(off_t,STREAMFILE*) = NULL; int16_t (*read_16bit)(off_t,STREAMFILE*) = NULL; int i, bnk_version; int total_bnk_sounds, real_bnk_sounds = 0; /* check header */ /* BNK header endianness is platform-native */ if (read_32bitBE(offset + 0x00, streamFile) == EA_BNK_HEADER_BE) { read_32bit = read_32bitBE; read_16bit = read_16bitBE; } else if (read_32bitBE(offset + 0x00, streamFile) == EA_BNK_HEADER_LE) { read_32bit = read_32bitLE; read_16bit = read_16bitLE; } else { goto fail; } bnk_version = read_8bit(offset + 0x04,streamFile); total_bnk_sounds = read_16bit(offset + 0x06,streamFile); /* check multi-streams */ switch(bnk_version) { case 0x02: /* early [Need For Speed II (PC/PS1), FIFA 98 (PC/PS1/SAT)] */ table_offset = 0x0c; header_size = read_32bit(offset + 0x08,streamFile); /* full size */ break; case 0x04: /* mid (last used in PSX banks) */ case 0x05: /* late (generated by sx.exe ~v2+) */ /* 0x08: header/file size, 0x0C: file size/null, 0x10: always null */ table_offset = 0x14; header_size = get_streamfile_size(streamFile); /* unknown (header is variable and may have be garbage until data) */ break; default: VGM_LOG("EA BNK: unknown version %x\n", bnk_version); goto fail; } if (target_stream == 0) target_stream = 1; header_offset = 0; for (i = 0; i < total_bnk_sounds; i++) { /* some of these are dummies with zero offset */ test_offset = read_32bit(offset + table_offset + 0x04 * i, streamFile); if (test_offset != 0) { real_bnk_sounds++; /* ABK points at absolute indexes, i.e. with dummies included */ if (total_streams != 0) { if (target_stream - 1 == i) header_offset = offset + table_offset + 0x04 * i + test_offset; } else { /* Ignore dummy streams when opening standalone BNK files */ if (target_stream == real_bnk_sounds) header_offset = offset + table_offset + 0x04 * i + test_offset; } } } if (target_stream < 0 || header_offset == 0 || real_bnk_sounds < 1) goto fail; if (!parse_variable_header(streamFile,&ea, header_offset, header_size - header_offset, bnk_version)) goto fail; /* fix absolute offsets so it works in next funcs */ if (offset) { for (i = 0; i < ea.channels; i++) { ea.offsets[i] += offset; } } start_offset = ea.offsets[0]; /* first channel, presumably needed for MPEG */ /* rest is common */ return init_vgmstream_ea_variable_header(streamFile, &ea, start_offset, bnk_version, total_streams ? total_streams : real_bnk_sounds); fail: return NULL; } /* inits VGMSTREAM from a EA header */ static VGMSTREAM * init_vgmstream_ea_variable_header(STREAMFILE *streamFile, ea_header * ea, off_t start_offset, int bnk_version, int total_streams) { VGMSTREAM * vgmstream = NULL; int i, ch; int is_bnk = bnk_version; /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(ea->channels, ea->loop_flag); if (!vgmstream) goto fail; vgmstream->sample_rate = ea->sample_rate; vgmstream->num_samples = ea->num_samples; vgmstream->loop_start_sample = ea->loop_start; vgmstream->loop_end_sample = ea->loop_end; vgmstream->codec_endian = ea->big_endian; vgmstream->codec_config = ea->codec_config; vgmstream->meta_type = is_bnk ? meta_EA_BNK : meta_EA_SCHL; if (is_bnk) { vgmstream->layout_type = layout_none; /* BNKs usually have absolute offsets for all channels ("full" interleave) except in some versions */ if (vgmstream->channels > 1 && ea->codec1 == EA_CODEC1_PCM) { int interleave = (vgmstream->num_samples * (ea->bps == 8 ? 0x01 : 0x02)); /* full interleave */ for (i = 0; i < vgmstream->channels; i++) { ea->offsets[i] = ea->offsets[0] + interleave*i; } } else if (vgmstream->channels > 1 && ea->codec1 == EA_CODEC1_VAG) { int interleave = (vgmstream->num_samples / 28 * 16); /* full interleave */ for (i = 0; i < vgmstream->channels; i++) { ea->offsets[i] = ea->offsets[0] + interleave*i; } } else if (vgmstream->channels > 1 && ea->codec2 == EA_CODEC2_GCADPCM && ea->offsets[0] == ea->offsets[1]) { /* pcstream+gcadpcm with sx.exe v2, this is probably a bug (even with this parts of the wave are off) */ int interleave = (vgmstream->num_samples / 14 * 8); /* full interleave */ for (i = 0; i < vgmstream->channels; i++) { ea->offsets[i] = ea->offsets[0] + interleave*i; } } } else { vgmstream->layout_type = layout_blocked_ea_schl; } vgmstream->num_streams = total_streams; //vgmstream->stream_size = ; //todo needed for kbps info /* EA usually implements their codecs in all platforms (PS2/WII do EAXA/MT/EALAYER3) and * favors them over platform's natives (ex. EAXA vs VAG/DSP). * Unneeded codecs are removed over time (ex. LAYER3 when EALAYER3 was introduced). */ switch (ea->codec2) { case EA_CODEC2_EAXA: /* EA-XA, CDXA ADPCM variant */ if (ea->version == EA_VERSION_V0) { if (ea->platform != EA_PLATFORM_SAT && ea->channels > 1) vgmstream->coding_type = coding_EA_XA; /* original version, stereo stream */ else vgmstream->coding_type = coding_EA_XA_int; /* interleaved mono streams */ } else { /* later revision with PCM blocks and slighty modified decoding */ vgmstream->coding_type = coding_EA_XA_V2; } break; case EA_CODEC2_S8: /* PCM8 */ vgmstream->coding_type = coding_PCM8; break; case EA_CODEC2_S16BE: /* PCM16BE */ vgmstream->coding_type = coding_PCM16BE; break; case EA_CODEC2_S16LE: /* PCM16LE */ if (ea->version > 0) { vgmstream->coding_type = coding_PCM16LE; } else { /* Need for Speed III: Hot Pursuit (PC) */ vgmstream->coding_type = coding_PCM16_int; } break; case EA_CODEC2_VAG: /* PS-ADPCM */ vgmstream->coding_type = coding_PSX; break; case EA_CODEC2_XBOXADPCM: /* XBOX IMA (interleaved mono) */ vgmstream->coding_type = coding_XBOX_IMA_int; break; case EA_CODEC2_GCADPCM: /* DSP */ vgmstream->coding_type = coding_NGC_DSP; /* get them coefs (start offsets are not necessarily ordered) */ { int16_t (*read_16bit)(off_t,STREAMFILE*) = ea->big_endian ? read_16bitBE : read_16bitLE; for (ch=0; ch < vgmstream->channels; ch++) { for (i=0; i < 16; i++) { /* actual size 0x21, last byte unknown */ vgmstream->ch[ch].adpcm_coef[i] = read_16bit(ea->coefs[ch] + i*2, streamFile); } } } break; #ifdef VGM_USE_MPEG case EA_CODEC2_LAYER2: /* MPEG Layer II, aka MP2 */ case EA_CODEC2_LAYER3: { /* MPEG Layer III, aka MP3 */ mpeg_custom_config cfg = {0}; off_t mpeg_start_offset = is_bnk ? start_offset : get_ea_stream_mpeg_start_offset(streamFile, start_offset, ea); if (!mpeg_start_offset) goto fail; /* layout is still blocks, but should work fine with the custom mpeg decoder */ vgmstream->codec_data = init_mpeg_custom(streamFile, mpeg_start_offset, &vgmstream->coding_type, vgmstream->channels, MPEG_EA, &cfg); if (!vgmstream->codec_data) goto fail; break; } case EA_CODEC2_EALAYER3: { /* MP3 variant */ mpeg_custom_config cfg = {0}; off_t mpeg_start_offset = is_bnk ? start_offset : get_ea_stream_mpeg_start_offset(streamFile, start_offset, ea); if (!mpeg_start_offset) goto fail; /* layout is still blocks, but should work fine with the custom mpeg decoder */ vgmstream->codec_data = init_mpeg_custom(streamFile, mpeg_start_offset, &vgmstream->coding_type, vgmstream->channels, MPEG_EAL31, &cfg); if (!vgmstream->codec_data) goto fail; break; } #endif case EA_CODEC2_MT10: /* MicroTalk (10:1 compression) */ case EA_CODEC2_MT5: { /* MicroTalk (5:1 compression) */ int use_pcm_blocks = 0; if (ea->version == EA_VERSION_V3 || (ea->version == EA_VERSION_V2 && (ea->platform == EA_PLATFORM_PC || ea->platform == EA_PLATFORM_MAC))) { use_pcm_blocks = 1; } /* make relative loops absolute for the decoder */ if (ea->loop_flag) { for (i = 0; i < vgmstream->channels; i++) { ea->loops[i] += ea->offsets[0]; } } vgmstream->coding_type = coding_EA_MT; vgmstream->codec_data = init_ea_mt_loops(vgmstream->channels, use_pcm_blocks, ea->loop_start, ea->loops); if (!vgmstream->codec_data) goto fail; break; } #ifdef VGM_USE_FFMPEG case EA_CODEC2_ATRAC3PLUS: { ffmpeg_codec_data *ffmpeg_data; /* regular ATRAC3plus chunked in SCxx blocks, including RIFF header [Medal of Honor Heroes 2 (PSP)] */ if (!is_bnk) { STREAMFILE* temp_streamFile = NULL; /* remove blocks on reads to feed FFmpeg a clean .at3 */ temp_streamFile = setup_schl_streamfile(streamFile, ea->codec2, ea->channels, start_offset, 0); if (!temp_streamFile) goto fail; start_offset = 0x00; /* must point to the custom streamfile's beginning */ ffmpeg_data = init_ffmpeg_offset(temp_streamFile, start_offset, get_streamfile_size(temp_streamFile)); close_streamfile(temp_streamFile); if (!ffmpeg_data) goto fail; } else { size_t riff_size = read_32bitLE(start_offset + 0x04, streamFile) + 0x08; ffmpeg_data = init_ffmpeg_offset(streamFile, start_offset, riff_size); if (!ffmpeg_data) goto fail; } vgmstream->codec_data = ffmpeg_data; vgmstream->coding_type = coding_FFmpeg; vgmstream->layout_type = layout_none; if (ffmpeg_data->skipSamples <= 0) /* in case FFmpeg didn't get them */ ffmpeg_set_skip_samples(ffmpeg_data, riff_get_fact_skip_samples(streamFile, start_offset)); break; } #endif default: VGM_LOG("EA SCHl: unknown codec2 0x%02x for platform 0x%02x\n", ea->codec2, ea->platform); goto fail; } /* open files; channel offsets are updated below */ if (!vgmstream_open_stream(vgmstream,streamFile,start_offset)) goto fail; if (is_bnk) { /* setup channel offsets */ if (vgmstream->coding_type == coding_EA_XA) { /* shared (stereo/mono codec) */ for (i = 0; i < vgmstream->channels; i++) { vgmstream->ch[i].offset = ea->offsets[0]; } } //else if (vgmstream->layout_type == layout_interleave) { /* interleaved */ // for (i = 0; i < vgmstream->channels; i++) { // vgmstream->ch[i].offset = ea->offsets[0] + vgmstream->interleave_block_size*i; // } //} else if (vgmstream->coding_type == coding_PCM16_int && ea->version == 0) { /* Need for Speed 2 (PC) bad offsets */ for (i = 0; i < vgmstream->channels; i++) { vgmstream->ch[i].offset = ea->offsets[0] + 0x02*i; } } else if (vgmstream->coding_type == coding_PCM8 && ea->platform == EA_PLATFORM_PS2 && ea->version == 3) { /* SSX3 (PS2) weird 0x10 mini header (codec/loop start/loop end/samples) */ for (i = 0; i < vgmstream->channels; i++) { vgmstream->ch[i].offset = ea->offsets[0] + 0x10; } } else { /* absolute */ for (i = 0; i < vgmstream->channels; i++) { vgmstream->ch[i].offset = ea->offsets[i]; } } } else if (vgmstream->layout_type == layout_blocked_ea_schl) { /* regular SCHls, except ATRAC3plus */ if (total_streams == 0) { /* HACK: fix num_samples for streams with multiple SCHl. Need to eventually get rid of this */ int total_samples = get_ea_stream_total_samples(streamFile, start_offset, vgmstream); if (total_samples > vgmstream->num_samples) vgmstream->num_samples = total_samples; } } return vgmstream; fail: close_vgmstream(vgmstream); return NULL; } static uint32_t read_patch(STREAMFILE* streamFile, off_t* offset) { uint32_t result = 0; uint8_t byte_count = read_8bit(*offset, streamFile); (*offset)++; if (byte_count == 0xFF) { /* signals 32b size (ex. custom user data) */ (*offset) += 4 + read_32bitBE(*offset, streamFile); return 0; } if (byte_count > 4) { /* uncommon (ex. coef patches) */ (*offset) += byte_count; return 0; } for ( ; byte_count > 0; byte_count--) { /* count of 0 is also possible, means value 0 */ result <<= 8; result += (uint8_t)read_8bit(*offset, streamFile); (*offset)++; } return result; } /* decodes EA's GSTR/PT header (mostly cross-referenced with sx.exe) */ static int parse_variable_header(STREAMFILE* streamFile, ea_header* ea, off_t begin_offset, int max_length, int bnk_version) { off_t offset = begin_offset; uint32_t platform_id; int is_header_end = 0; int is_bnk = bnk_version; /* null defaults as 0 can be valid */ ea->version = EA_VERSION_NONE; ea->codec1 = EA_CODEC1_NONE; ea->codec2 = EA_CODEC2_NONE; /* get platform info */ platform_id = read_32bitBE(offset, streamFile); if (platform_id != 0x47535452 && (platform_id & 0xFFFF0000) != 0x50540000) { offset += 4; /* skip unknown field (related to blocks/size?) in "nbapsstream" (NBA2000 PS, FIFA2001 PS) */ platform_id = read_32bitBE(offset, streamFile); } if (platform_id == 0x47535452) { /* "GSTR" = Generic STReam */ ea->platform = EA_PLATFORM_GENERIC; offset += 4 + 4; /* GSTRs have an extra field (config?): ex. 0x01000000, 0x010000D8 BE */ } else if ((platform_id & 0xFFFF0000) == 0x50540000) { /* "PT" = PlaTform */ ea->platform = (uint16_t)read_16bitLE(offset + 2,streamFile); offset += 4; } else { goto fail; } /* parse mini-chunks/tags (variable, ommited if default exists; some are removed in later versions of sx.exe) */ while (!is_header_end && offset - begin_offset < max_length) { uint8_t patch_type = read_8bit(offset,streamFile); offset++; //;off_t test_offset = offset; //;VGM_LOG("EA SCHl: patch=%02x at %lx, value=%x\n", patch_type, offset-1, read_patch(streamFile, &test_offset)); switch(patch_type) { case 0x00: /* signals non-default block rate and maybe other stuff; or padding after 0xFF */ if (!is_header_end) read_patch(streamFile, &offset); break; case 0x05: /* unknown (usually 0x50 except Madden NFL 3DS: 0x3e800) */ case 0x06: /* priority (0..100, always 0x65 for streams, others for BNKs; rarely ommited) */ case 0x07: /* unknown (BNK only: 36|3A|40) */ case 0x08: /* release envelope (BNK only) */ case 0x09: /* related to playback envelope (BNK only) */ case 0x0A: /* bend range (BNK only) */ case 0x0B: /* bank channels (or, offsets[] size; defaults to 1 if not present, removed in sx.exe v3) */ case 0x0C: /* pan offset (BNK only) */ case 0x0D: /* random pan offset range (BNK only) */ case 0x0E: /* volume (BNK only) */ case 0x0F: /* random volume range (BNK only) */ case 0x10: /* detune (BNK only) */ case 0x11: /* random detune range (BNK only) */ case 0x12: /* unknown, rare (BNK only) [Need for Speed III: Hot Pursuit (PS1)] */ case 0x13: /* effect bus (0..127) */ case 0x14: /* emdedded user data (free size/value) */ case 0x15: /* unknown, rare (BNK only) [Need for Speed: High Stakes (PS1)] */ case 0x19: /* related to playback envelope (BNK only) */ case 0x1B: /* unknown (movie only?) */ case 0x1C: /* initial envelope volume (BNK only) */ case 0x1D: /* unknown, rare [NASCAR 06 (Xbox)] */ case 0x1E: /* related to ch1? (BNK only) */ case 0x1F: case 0x20: case 0x21: /* related to ch2? (BNK only) */ case 0x22: case 0x23: case 0x24: /* master random detune range (BNK only) */ case 0x25: /* unknown */ read_patch(streamFile, &offset); break; case 0xFC: /* padding for alignment between patches */ case 0xFD: /* info section start marker */ break; case 0x83: /* codec1 defines, used early revisions */ ea->codec1 = read_patch(streamFile, &offset); break; case 0xA0: /* codec2 defines */ ea->codec2 = read_patch(streamFile, &offset); break; case 0x80: /* version, affecting some codecs */ ea->version = read_patch(streamFile, &offset); break; case 0x81: /* bits per sample for codec1 PCM */ ea->bps = read_patch(streamFile, &offset); break; case 0x82: /* channel count */ ea->channels = read_patch(streamFile, &offset); break; case 0x84: /* sample rate */ ea->sample_rate = read_patch(streamFile,&offset); break; case 0x85: /* sample count */ ea->num_samples = read_patch(streamFile, &offset); break; case 0x86: /* loop start sample */ ea->loop_start = read_patch(streamFile, &offset); break; case 0x87: /* loop end sample */ ea->loop_end = read_patch(streamFile, &offset) + 1; /* sx.exe does +1 */ break; /* channel offsets (BNK only), can be the equal for all channels or interleaved; not necessarily contiguous */ case 0x88: /* absolute offset of ch1 (or ch1+ch2 for stereo EAXA) */ ea->offsets[0] = read_patch(streamFile, &offset); break; case 0x89: /* absolute offset of ch2 */ ea->offsets[1] = read_patch(streamFile, &offset); break; case 0x94: /* absolute offset of ch3 */ ea->offsets[2] = read_patch(streamFile, &offset); break; case 0x95: /* absolute offset of ch4 */ ea->offsets[3] = read_patch(streamFile, &offset); break; case 0xA2: /* absolute offset of ch5 */ ea->offsets[4] = read_patch(streamFile, &offset); break; case 0xA3: /* absolute offset of ch6 */ ea->offsets[5] = read_patch(streamFile, &offset); break; case 0x8F: /* DSP/N64BLK coefs ch1 */ ea->coefs[0] = offset+1; read_patch(streamFile, &offset); break; case 0x90: /* DSP/N64BLK coefs ch2 */ ea->coefs[1] = offset+1; read_patch(streamFile, &offset); break; case 0x91: /* DSP coefs ch3, and unknown in older versions */ ea->coefs[2] = offset+1; read_patch(streamFile, &offset); break; case 0xAB: /* DSP coefs ch4 */ ea->coefs[3] = offset+1; read_patch(streamFile, &offset); break; case 0xAC: /* DSP coefs ch5 */ ea->coefs[4] = offset+1; read_patch(streamFile, &offset); break; case 0xAD: /* DSP coefs ch6 */ ea->coefs[5] = offset+1; read_patch(streamFile, &offset); break; case 0x1A: /* EA-MT/EA-XA relative loop offset of ch1 */ ea->loops[0] = read_patch(streamFile, &offset); break; case 0x26: /* EA-MT/EA-XA relative loop offset of ch2 */ ea->loops[1] = read_patch(streamFile, &offset); break; case 0x27: /* EA-MT/EA-XA relative loop offset of ch3 */ ea->loops[2] = read_patch(streamFile, &offset); break; case 0x28: /* EA-MT/EA-XA relative loop offset of ch4 */ ea->loops[3] = read_patch(streamFile, &offset); break; case 0x29: /* EA-MT/EA-XA relative loop offset of ch5 */ ea->loops[4] = read_patch(streamFile, &offset); break; case 0x2a: /* EA-MT/EA-XA relative loop offset of ch6 */ ea->loops[5] = read_patch(streamFile, &offset); break; case 0x8A: /* long padding (always 0x00000000) */ case 0x8B: /* also padding? [Need for Speed: Hot Pursuit 2 (PC)] */ case 0x8C: /* flags (ex. play type = 01=static/02=dynamic | spatialize = 20=pan/etc) */ /* (ex. PS1 VAG=0, PS2 PCM/LAYER2=4, GC EAXA=4, 3DS DSP=512, Xbox EAXA=36, N64 BLK=05E800, N64 MT10=01588805E800) */ case 0x8D: /* unknown, rare [FIFA 07 (GC)] */ case 0x8E: case 0x92: /* bytes per sample? */ case 0x93: /* unknown (BNK only) [Need for Speed III: Hot Pursuit (PC)] */ case 0x98: /* embedded time stretch 1 (long data for who-knows-what) */ case 0x99: /* embedded time stretch 2 */ case 0x9C: /* azimuth ch1 */ case 0x9D: /* azimuth ch2 */ case 0x9E: /* azimuth ch3 */ case 0x9F: /* azimuth ch4 */ case 0xA6: /* azimuth ch5 */ case 0xA7: /* azimuth ch6 */ case 0xA1: /* unknown and very rare, always 0x02 [FIFA 2001 (PS2)] */ read_patch(streamFile, &offset); break; case 0xFF: /* header end (then 0-padded so it's 32b aligned) */ is_header_end = 1; break; case 0xFE: /* info subsection start marker (rare [SSX3 (PS2)]) */ is_header_end = 1; /* Signals that another info section starts, redefining codec/samples/offsets/etc * (previous header values should be cleared first as not everything is overwritten). * This subsection seems the same as a next or prev PT subsong, so it's ignored. */ break; default: VGM_LOG("EA SCHl: unknown patch 0x%02x\n", patch_type); goto fail; } } if (ea->channels > EA_MAX_CHANNELS) goto fail; /* Set defaults per platform, as the header ommits them when possible */ ea->loop_flag = (ea->loop_end); /* affects blocks/codecs */ if (ea->platform == EA_PLATFORM_N64 || ea->platform == EA_PLATFORM_MAC || ea->platform == EA_PLATFORM_SAT || ea->platform == EA_PLATFORM_GC_WII || ea->platform == EA_PLATFORM_X360 || ea->platform == EA_PLATFORM_PS3 || ea->platform == EA_PLATFORM_GENERIC) { ea->big_endian = 1; } if (!ea->channels) { ea->channels = 1; } /* version mainly affects defaults and minor stuff, can come with all codecs */ /* V0 is often just null but it's specified in some files (uncommon, with patch size 0x00) */ if (ea->version == EA_VERSION_NONE) { switch(ea->platform) { case EA_PLATFORM_PC: ea->version = EA_VERSION_V0; break; case EA_PLATFORM_PSX: ea->version = EA_VERSION_V0; break; // assumed case EA_PLATFORM_N64: ea->version = EA_VERSION_V0; break; case EA_PLATFORM_MAC: ea->version = EA_VERSION_V0; break; case EA_PLATFORM_SAT: ea->version = EA_VERSION_V0; break; case EA_PLATFORM_PS2: ea->version = EA_VERSION_V1; break; case EA_PLATFORM_GC_WII: ea->version = EA_VERSION_V2; break; case EA_PLATFORM_XBOX: ea->version = EA_VERSION_V2; break; case EA_PLATFORM_X360: ea->version = EA_VERSION_V3; break; case EA_PLATFORM_PSP: ea->version = EA_VERSION_V3; break; case EA_PLATFORM_PS3: ea->version = EA_VERSION_V3; break; case EA_PLATFORM_3DS: ea->version = EA_VERSION_V3; break; case EA_PLATFORM_GENERIC: ea->version = EA_VERSION_V2; break; default: VGM_LOG("EA SCHl: unknown default version for platform 0x%02x\n", ea->platform); goto fail; } } /* codec1 defaults */ if (ea->codec1 == EA_CODEC1_NONE && ea->version == EA_VERSION_V0) { switch(ea->platform) { case EA_PLATFORM_PC: ea->codec1 = EA_CODEC1_PCM; break; case EA_PLATFORM_PSX: ea->codec1 = EA_CODEC1_VAG; break; // assumed //case EA_PLATFORM_N64: ea->codec1 = EA_CODEC1_N64; break; case EA_PLATFORM_MAC: ea->codec1 = EA_CODEC1_PCM; break; // assumed case EA_PLATFORM_SAT: ea->codec1 = EA_CODEC1_PCM; break; default: VGM_LOG("EA SCHl: unknown default codec1 for platform 0x%02x\n", ea->platform); goto fail; } } /* codec1 to codec2 to simplify later parsing */ if (ea->codec1 != EA_CODEC1_NONE && ea->codec2 == EA_CODEC2_NONE) { switch (ea->codec1) { case EA_CODEC1_PCM: ea->codec2 = ea->bps==8 ? EA_CODEC2_S8 : (ea->big_endian ? EA_CODEC2_S16BE : EA_CODEC2_S16LE); break; case EA_CODEC1_VAG: ea->codec2 = EA_CODEC2_VAG; break; case EA_CODEC1_EAXA: ea->codec2 = EA_CODEC2_EAXA; break; case EA_CODEC1_MT10: ea->codec2 = EA_CODEC2_MT10; break; default: VGM_LOG("EA SCHl: unknown codec1 0x%02x\n", ea->codec1); goto fail; } } /* codec2 defaults */ if (ea->codec2 == EA_CODEC2_NONE) { switch(ea->platform) { case EA_PLATFORM_GENERIC: ea->codec2 = EA_CODEC2_EAXA; break; case EA_PLATFORM_PC: ea->codec2 = EA_CODEC2_EAXA; break; case EA_PLATFORM_PSX: ea->codec2 = EA_CODEC2_VAG; break; case EA_PLATFORM_MAC: ea->codec2 = EA_CODEC2_EAXA; break; case EA_PLATFORM_PS2: ea->codec2 = EA_CODEC2_VAG; break; case EA_PLATFORM_GC_WII: ea->codec2 = EA_CODEC2_S16BE; break; case EA_PLATFORM_XBOX: ea->codec2 = EA_CODEC2_S16LE; break; case EA_PLATFORM_X360: ea->codec2 = EA_CODEC2_EAXA; break; case EA_PLATFORM_PSP: ea->codec2 = EA_CODEC2_EAXA; break; case EA_PLATFORM_PS3: ea->codec2 = EA_CODEC2_EAXA; break; case EA_PLATFORM_3DS: ea->codec2 = EA_CODEC2_GCADPCM; break; default: VGM_LOG("EA SCHl: unknown default codec2 for platform 0x%02x\n", ea->platform); goto fail; } } /* somehow doesn't follow machine's sample rate or anything sensical */ if (!ea->sample_rate) { switch(ea->platform) { case EA_PLATFORM_GENERIC: ea->sample_rate = 48000; break; case EA_PLATFORM_PC: ea->sample_rate = 22050; break; case EA_PLATFORM_PSX: ea->sample_rate = 22050; break; case EA_PLATFORM_N64: ea->sample_rate = 22050; break; case EA_PLATFORM_MAC: ea->sample_rate = 22050; break; case EA_PLATFORM_SAT: ea->sample_rate = 22050; break; case EA_PLATFORM_PS2: ea->sample_rate = 22050; break; case EA_PLATFORM_GC_WII: ea->sample_rate = 24000; break; case EA_PLATFORM_XBOX: ea->sample_rate = 24000; break; case EA_PLATFORM_X360: ea->sample_rate = 44100; break; case EA_PLATFORM_PSP: ea->sample_rate = 22050; break; case EA_PLATFORM_PS3: ea->sample_rate = 44100; break; case EA_PLATFORM_3DS: ea->sample_rate = 32000; break; default: VGM_LOG("EA SCHl: unknown default sample rate for platform 0x%02x\n", ea->platform); goto fail; } } /* some codecs have ADPCM hist at the start of every block in streams (but not BNKs) */ if (!is_bnk) { if (ea->codec2 == EA_CODEC2_GCADPCM) { if (ea->platform == EA_PLATFORM_3DS) ea->codec_config |= 0x01; } else if (ea->codec2 == EA_CODEC2_EAXA) { /* EA-XA has ADPCM hist in earlier versions */ /* V0, V1: always */ /* V2: consoles only */ /* V3: never */ if (ea->version <= EA_VERSION_V1) { ea->codec_config |= 0x01; } else if (ea->version == EA_VERSION_V2) { if (ea->platform == EA_PLATFORM_PS2 || ea->platform == EA_PLATFORM_GC_WII || ea->platform == EA_PLATFORM_XBOX) ea->codec_config |= 0x01; } } } return offset; fail: return 0; } /* Get total samples by parsing block headers, needed when multiple files are stitched together. * Some EA files (.mus/eam/sng/etc) concat many small subfiles, used for interactive/mapped * music (.map/lin). Subfiles always share header, except num_samples. */ static int get_ea_stream_total_samples(STREAMFILE* streamFile, off_t start_offset, VGMSTREAM* vgmstream) { int num_samples = 0; int multiple_schl = 0; /* calc num_samples as playable data size varies between files/blocks */ { vgmstream->next_block_offset = start_offset; do { uint32_t block_id = read_32bitBE(vgmstream->next_block_offset+0x00,streamFile); if (block_id == EA_BLOCKID_HEADER) /* "SCHl" start block (movie "SHxx" shouldn't use multi files) */ multiple_schl = 1; block_update_ea_schl(vgmstream->next_block_offset,vgmstream); num_samples += vgmstream->current_block_samples; } while (vgmstream->next_block_offset < get_streamfile_size(streamFile)); /* reset after getting samples */ block_update(start_offset,vgmstream); } /* only use calculated samples with multiple subfiles (rarely header samples may be less due to padding) */ if (multiple_schl) { ;VGM_LOG("EA SCHl: multiple SCHl found\n"); return num_samples; } else { return 0; } } /* find data start offset inside the first SCDl; not very elegant but oh well */ static off_t get_ea_stream_mpeg_start_offset(STREAMFILE* streamFile, off_t start_offset, const ea_header* ea) { size_t file_size = get_streamfile_size(streamFile); off_t block_offset = start_offset; int32_t (*read_32bit)(off_t,STREAMFILE*) = ea->big_endian ? read_32bitBE : read_32bitLE; while (block_offset < file_size) { uint32_t block_id, block_size; off_t offset; block_id = read_32bitBE(block_offset+0x00,streamFile); block_size = read_32bitLE(block_offset+0x04,streamFile); if (block_size > 0x00F00000) /* size is always LE, except in early SAT/MAC */ block_size = read_32bitBE(block_offset+0x04,streamFile); switch(block_id) { case EA_BLOCKID_DATA: /* "SCDl" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_EN: /* "SDEN" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_FR: /* "SDFR" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_GE: /* "SDGE" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_IT: /* "SDIT" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_SP: /* "SDSP" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_RU: /* "SDRU" */ case EA_BLOCKID_LOC_DATA | EA_BLOCKID_LOC_JA: /* "SDJA" */ offset = read_32bit(block_offset+0x0c,streamFile); /* first value seems ok, second is something else in EALayer3 */ return block_offset + 0x0c + ea->channels*0x04 + offset; case 0x00000000: goto fail; /* just in case */ default: block_offset += block_size; /* size includes header */ break; } } fail: return 0; }