#include "meta.h" #include "../coding/coding.h" typedef struct { int total_subsongs; int target_subsong; int file_version; int header_version; /* major.minor in hex */ uint32_t stream_offset; uint32_t stream_size; int loop_flag; int sample_rate; int channels; int32_t num_samples; } adm_header_t; static int parse_adm(adm_header_t* adm, STREAMFILE* sf); static VGMSTREAM* init_vgmstream_adm(STREAMFILE* sf, int file_version); /* ADM2 - Crankcase Audio REV plugin file [The Grand Tour Game (PC)] */ VGMSTREAM* init_vgmstream_adm2(STREAMFILE* sf) { /* checks */ if (!is_id32be(0x00,sf, "ADM2")) return NULL; if (!check_extensions(sf, "wem")) return NULL; return init_vgmstream_adm(sf, 2); } /* ADM3 - Crankcase Audio REV plugin file [Cyberpunk 2077 (PC), MotoGP 21 (PC)] */ VGMSTREAM* init_vgmstream_adm3(STREAMFILE* sf) { /* checks */ if (!is_id32be(0x00,sf, "ADM3")) return NULL; if (!check_extensions(sf, "wem,bnk")) return NULL; return init_vgmstream_adm(sf, 3); } static VGMSTREAM* init_vgmstream_adm(STREAMFILE* sf, int file_version) { VGMSTREAM* vgmstream = NULL; adm_header_t adm = {0}; /* ADMx are files used with the Wwise Crankaudio plugin, that simulate engine noises with * base internal samples and some internal RPM config (probably). Actual file seems to * define some combo of samples, this only plays those separate samples. */ adm.target_subsong = sf->stream_index; if (adm.target_subsong == 0) adm.target_subsong = 1; adm.file_version = file_version; if (!parse_adm(&adm, sf)) goto fail; /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(adm.channels, adm.loop_flag); if (!vgmstream) goto fail; vgmstream->meta_type = meta_ADM; vgmstream->sample_rate = adm.sample_rate; vgmstream->num_samples = adm.num_samples; /* slightly lower than bytes-to-samples */ vgmstream->num_streams = adm.total_subsongs; vgmstream->stream_size = adm.stream_size; switch(adm.header_version) { case 0x00070000: /* The Crew Motorfest (PC) */ vgmstream->coding_type = coding_CRANKCASE_IMA; //vgmstream->layout_type = layout_interleave; //vgmstream->interleave_block_size = 0x23; break; default: /* The Grand Tour Game (PC) [0x00050000], MotoGP 21 (PC) [0x00060000] */ /* Basically Apple's IMA (internally just "ADPCMDecoder") but transforms to float * each sample during decode by multiplying by 0.000030518509 */ vgmstream->coding_type = coding_APPLE_IMA4; vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = 0x22; break; } if (!vgmstream_open_stream(vgmstream, sf, adm.stream_offset)) goto fail; return vgmstream; fail: close_vgmstream(vgmstream); return NULL; } static int parse_type(adm_header_t* adm, STREAMFILE* sf, uint32_t offset) { /* ADM2 chunks */ if (is_id32be(offset, sf, "GRN1")) { /* 0x74: offset to floats? */ offset = read_u32le(offset + 0x78, sf); /* to SMP1 */ if (!parse_type(adm, sf, offset)) goto fail; } else if (is_id32be(offset, sf, "SMP1")) { adm->total_subsongs++; if (adm->target_subsong == adm->total_subsongs) { /* 0x04 always 0 */ /* 0x08 version? (0x00030000) */ adm->channels = read_u16le(offset + 0x0c, sf); /* 0x0e 0x0001? */ /* 0x10 header size (0x2c) */ adm->sample_rate = read_s32le(offset + 0x14, sf); adm->num_samples = read_s32le(offset + 0x18, sf); adm->stream_size = read_u32le(offset + 0x1c, sf); adm->stream_offset = read_u32le(offset + 0x20, sf); /* rest: null */ VGM_LOG("so=%x %x\n", adm->stream_size, adm->stream_offset); } } /* ADM3 chunks */ else if (is_id32be(offset, sf, "RMP1")) { offset = read_u32le(offset + 0x1c, sf); if (!parse_type(adm, sf, offset)) goto fail; /* 0x24: offset to GRN1 */ } else if (is_id32be(offset, sf, "SMB1")) { uint32_t table_count = read_u32le(offset + 0x10, sf); uint32_t table_offset = read_u32le(offset + 0x18, sf); int i; for (i = 0; i < table_count; i++) { uint32_t smp2_unk = read_u32le(table_offset + i * 0x08 + 0x00, sf); uint32_t smp2_offset = read_u32le(table_offset + i * 0x08 + 0x04, sf); if (smp2_unk != 1) goto fail; if (!parse_type(adm, sf, smp2_offset)) /* SMP2 */ goto fail; } } else if (is_id32be(offset, sf, "SMP2")) { adm->total_subsongs++; if (adm->target_subsong == adm->total_subsongs) { /* 0x04 always 0 */ /* 0x08 version? (0x00040000) */ adm->channels = read_u32le(offset + 0x0c, sf); /* usually 4, with different sounds*/ /* 0x10 float pitch? */ /* 0x14 int pitch? */ /* 0x18 0x0001? */ /* 0x1a header size (0x30) */ adm->sample_rate = read_s32le(offset + 0x1c, sf); adm->num_samples = read_s32le(offset + 0x20, sf); adm->stream_size = read_u32le(offset + 0x24, sf); /* 0x28 1? */ adm->stream_offset = read_u32le(offset + 0x2c, sf); } } else { VGM_LOG("ADM: unknown at %x\n", offset); goto fail; } return 1; fail: return 0; } static int parse_adm(adm_header_t* adm, STREAMFILE* sf) { uint32_t offset; /* 0x04: null */ adm->header_version = read_u32le(0x08, sf); /* ADM2: 0x00050000, ADM3: 0x00060000 (older) / 0x00070000 (2023) */ /* 0x0c: header size */ /* 0x10: data start */ /* rest unknown, looks mostly the same between files (some floats and stuff) */ switch(adm->file_version) { case 2: /* low to high */ offset = read_u32le(0x104, sf); if (!parse_type(adm, sf, offset)) goto fail; /* GRN1 */ /* high to low */ offset = read_u32le(0x108, sf); if (!parse_type(adm, sf, offset)) goto fail; /* GRN1 */ /* idle engine */ offset = read_u32le(0x10c, sf); if (!parse_type(adm, sf, offset)) goto fail; /* SMP1 */ break; case 3: /* higher ramp, N samples from low to high */ offset = read_u32le(0x0FC, sf); if (!parse_type(adm, sf, offset)) goto fail; /* RMP1 */ if (read_u32le(0x100, sf) != 1) goto fail; /* lower ramp, also N samples */ offset = read_u32le(0x104, sf); if (!parse_type(adm, sf, offset)) goto fail; /* RMP1 */ if (read_u32le(0x108, sf) != 1) goto fail; /* idle engine */ offset = read_u32le(0x10c, sf); if (offset != 0) { /* may not exist */ if (!parse_type(adm, sf, offset)) goto fail; /* SMP2 */ if (read_u32le(0x110, sf) != 1) goto fail; } break; default: goto fail; } if (adm->target_subsong < 0 || adm->target_subsong > adm->total_subsongs || adm->total_subsongs < 1) goto fail; return 1; fail: return 0; }