#include "meta.h" #include "../coding/coding.h" #include "lp_ap_lep_streamfile.h" /* LP/AP/LEP - from Konami (KCES)'s Enthusia: Professional Racing (PS2) */ VGMSTREAM* init_vgmstream_lp_ap_lep(STREAMFILE* sf) { VGMSTREAM* vgmstream = NULL; STREAMFILE* temp_sf = NULL; off_t start_offset; int loop_flag, channels, sample_rate, interleave; int32_t data_size, loop_start; uint32_t id; /* checks */ if (!is_id32be(0x00,sf,"LP ") && !is_id32be(0x00,sf,"AP ") && !is_id32be(0x00,sf,"LEP ")) return NULL; /* .bin/lbin: internal (no names in bigfiles but exes mention "bgm%05d.bin" and "LEP data") * .lp/lep/ap: header ID */ if (!check_extensions(sf, "bin,lbin,lp,lep,ap")) return NULL; id = read_u32be(0x00,sf); switch (id) { case 0x41502020: /* "AP " */ case 0x4C502020: /* "LP " */ sample_rate = read_u32le(0x08,sf); interleave = read_u32le(0x0c,sf); loop_start = read_u32le(0x14,sf); data_size = read_u32le(0x18,sf); start_offset = read_u32le(0x1C,sf); break; case 0x4C455020: /* "LEP " */ data_size = read_u32le(0x08,sf); sample_rate = read_u16le(0x12,sf); loop_start = read_u32le(0x58,sf); interleave = 0x10; start_offset = 0x800; break; default: goto fail; } loop_flag = loop_start != 0; channels = 2; /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(channels, loop_flag); if (!vgmstream) goto fail; vgmstream->meta_type = meta_LP_AP_LEP; vgmstream->sample_rate = sample_rate; switch (id) { case 0x4C502020: /* "LP " */ vgmstream->coding_type = coding_PCM16LE; vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = interleave; vgmstream->num_samples = pcm_bytes_to_samples(data_size, channels, 16); vgmstream->loop_start_sample = pcm_bytes_to_samples(loop_start, channels, 16); vgmstream->loop_end_sample = vgmstream->num_samples; temp_sf = setup_lp_streamfile(sf, start_offset); /* encrypted/obfuscated PCM */ if (!temp_sf) goto fail; break; case 0x41502020: /* "AP " */ case 0x4C455020: /* "LEP " */ vgmstream->coding_type = coding_PSX; vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = interleave; vgmstream->num_samples = ps_bytes_to_samples(data_size, channels); vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start, channels); vgmstream->loop_end_sample = vgmstream->num_samples; break; default: goto fail; } if (!vgmstream_open_stream(vgmstream, temp_sf ? temp_sf : sf, start_offset)) goto fail; close_streamfile(temp_sf); return vgmstream; fail: close_streamfile(temp_sf); close_vgmstream(vgmstream); return NULL; }