#include "meta.h" #include "../coding/coding.h" #include "../layout/layout.h" #include "txth_streamfile.h" #define TXT_LINE_MAX 0x2000 /* known TXTH types */ typedef enum { PSX = 0, /* PS-ADPCM */ XBOX = 1, /* XBOX IMA ADPCM */ NGC_DTK = 2, /* NGC ADP/DTK ADPCM */ PCM16BE = 3, /* 16-bit big endian PCM */ PCM16LE = 4, /* 16-bit little endian PCM */ PCM8 = 5, /* 8-bit PCM */ SDX2 = 6, /* SDX2 (3D0 games) */ DVI_IMA = 7, /* DVI IMA ADPCM (high nibble first) */ MPEG = 8, /* MPEG (MP3) */ IMA = 9, /* IMA ADPCM (low nibble first) */ AICA = 10, /* YAMAHA AICA ADPCM (Dreamcast games) */ MSADPCM = 11, /* MS ADPCM (Windows games) */ NGC_DSP = 12, /* NGC DSP (Nintendo games) */ PCM8_U_int = 13, /* 8-bit unsigned PCM (interleaved) */ PSX_bf = 14, /* PS-ADPCM with bad flags */ MS_IMA = 15, /* Microsoft IMA ADPCM */ PCM8_U = 16, /* 8-bit unsigned PCM */ APPLE_IMA4 = 17, /* Apple Quicktime 4-bit IMA ADPCM */ ATRAC3 = 18, /* Raw ATRAC3 */ ATRAC3PLUS = 19, /* Raw ATRAC3PLUS */ XMA1 = 20, /* Raw XMA1 */ XMA2 = 21, /* Raw XMA2 */ FFMPEG = 22, /* Any headered FFmpeg format */ AC3 = 23, /* AC3/SPDIF */ PCFX = 24, /* PC-FX ADPCM */ PCM4 = 25, /* 4-bit signed PCM (3rd and 4th gen games) */ PCM4_U = 26, /* 4-bit unsigned PCM (3rd and 4th gen games) */ OKI16 = 27, /* OKI ADPCM with 16-bit output (unlike OKI/VOX/Dialogic ADPCM's 12-bit) */ AAC = 28, /* Advanced Audio Coding (raw without .mp4) */ TGC = 29, /* Tiger Game.com 4-bit ADPCM */ ASF = 30, /* Argonaut ASF 4-bit ADPCM */ EAXA = 31, /* Electronic Arts EA-XA 4-bit ADPCM v1 */ OKI4S = 32, /* OKI ADPCM with 16-bit output (unlike OKI/VOX/Dialogic ADPCM's 12-bit) */ } txth_type; typedef enum { DEFAULT, NEGATIVE, POSITIVE, INVERTED } txth_loop_t; typedef struct { txth_type codec; uint32_t codec_mode; uint32_t value_mul; uint32_t value_div; uint32_t value_add; uint32_t value_sub; uint32_t id_value; uint32_t id_offset; uint32_t interleave; uint32_t interleave_last; uint32_t channels; uint32_t sample_rate; uint32_t data_size; int data_size_set; uint32_t start_offset; uint32_t next_offset; uint32_t padding_size; int sample_type; uint32_t num_samples; uint32_t loop_start_sample; uint32_t loop_end_sample; uint32_t loop_adjust; int skip_samples_set; uint32_t skip_samples; uint32_t loop_flag; txth_loop_t loop_behavior; int loop_flag_set; int loop_flag_auto; uint32_t coef_offset; uint32_t coef_spacing; uint32_t coef_big_endian; uint32_t coef_mode; int coef_table_set; uint8_t coef_table[0x02*16 * 16]; /* reasonable max */ int hist_set; uint32_t hist_offset; uint32_t hist_spacing; uint32_t hist_big_endian; int num_samples_data_size; int target_subsong; uint32_t subsong_count; uint32_t subsong_spacing; uint32_t name_offset_set; uint32_t name_offset; uint32_t name_size; int subfile_set; uint32_t subfile_offset; uint32_t subfile_size; char subfile_extension[32]; uint32_t chunk_number; uint32_t chunk_start; uint32_t chunk_size; uint32_t chunk_count; uint32_t chunk_header_size; uint32_t chunk_data_size; int chunk_start_set; int chunk_size_set; int chunk_count_set; uint32_t base_offset; uint32_t name_values[16]; int name_values_count; /* original STREAMFILE and its type (may be an unsupported "base" file or a .txth) */ STREAMFILE* sf; int streamfile_is_txth; /* configurable STREAMFILEs and if we opened it (thus must close it later) */ STREAMFILE* sf_text; STREAMFILE* sf_head; STREAMFILE* sf_body; int sf_text_opened; int sf_head_opened; int sf_body_opened; } txth_header; static VGMSTREAM* init_subfile(txth_header* txth); static STREAMFILE* open_txth(STREAMFILE* sf); static void clean_txth(txth_header* txth); static int parse_txth(txth_header* txth); /* TXTH - an artificial "generic" header for headerless streams. * Similar to GENH, but with a single separate .txth file in the dir and text-based. */ VGMSTREAM* init_vgmstream_txth(STREAMFILE* sf) { VGMSTREAM* vgmstream = NULL; txth_header txth = {0}; coding_t coding; int i, j; /* accept .txth (should set body_file or will fail later) */ if (check_extensions(sf, "txth")) { txth.sf = sf; txth.streamfile_is_txth = 1; txth.sf_text = sf; txth.sf_head = NULL; txth.sf_body = NULL; txth.sf_text_opened = 0; txth.sf_head_opened = 0; txth.sf_body_opened = 0; } else { /* accept base file (no need for ID or ext checks --if a companion .TXTH exists all is good). * player still needs to accept the streamfile's ext, so at worst rename to .vgmstream */ STREAMFILE* sf_text = open_txth(sf); if (!sf_text) goto fail; txth.sf = sf; txth.streamfile_is_txth = 0; txth.sf_text = sf_text; txth.sf_head = sf; txth.sf_body = sf; txth.sf_text_opened = 1; txth.sf_head_opened = 0; txth.sf_body_opened = 0; } /* process the text file */ if (!parse_txth(&txth)) goto fail; /* special case of parsing subfiles */ if (txth.subfile_set) { VGMSTREAM* subfile_vgmstream = init_subfile(&txth); clean_txth(&txth); return subfile_vgmstream; } /* type to coding conversion */ switch (txth.codec) { case PSX: coding = coding_PSX; break; case XBOX: coding = coding_XBOX_IMA; break; case NGC_DTK: coding = coding_NGC_DTK; break; case PCM16BE: coding = coding_PCM16BE; break; case PCM16LE: coding = coding_PCM16LE; break; case PCM8: coding = coding_PCM8; break; case SDX2: coding = coding_SDX2; break; case DVI_IMA: coding = coding_DVI_IMA; break; #ifdef VGM_USE_MPEG case MPEG: coding = coding_MPEG_layer3; break; /* we later find out exactly which */ #endif case IMA: coding = coding_IMA; break; case AICA: coding = coding_AICA; break; case MSADPCM: coding = coding_MSADPCM; break; case NGC_DSP: coding = coding_NGC_DSP; break; case PCM8_U_int: coding = coding_PCM8_U_int; break; case PSX_bf: coding = coding_PSX_badflags; break; case MS_IMA: coding = coding_MS_IMA; break; case PCM8_U: coding = coding_PCM8_U; break; case APPLE_IMA4: coding = coding_APPLE_IMA4; break; #ifdef VGM_USE_FFMPEG case ATRAC3: case ATRAC3PLUS: case XMA1: case XMA2: case AC3: case AAC: case FFMPEG: coding = coding_FFmpeg; break; #endif case PCFX: coding = coding_PCFX; break; case PCM4: coding = coding_PCM4; break; case PCM4_U: coding = coding_PCM4_U; break; case OKI16: coding = coding_OKI16; break; case OKI4S: coding = coding_OKI4S; break; case TGC: coding = coding_TGC; break; case ASF: coding = coding_ASF; break; case EAXA: coding = coding_EA_XA; break; default: goto fail; } /* try to autodetect PS-ADPCM loop data */ if (txth.loop_flag_auto && coding == coding_PSX) { txth.loop_flag = ps_find_loop_offsets(txth.sf_body, txth.start_offset, txth.data_size, txth.channels, txth.interleave, (int32_t*)&txth.loop_start_sample, (int32_t*)&txth.loop_end_sample); } /* build the VGMSTREAM */ vgmstream = allocate_vgmstream(txth.channels,txth.loop_flag); if (!vgmstream) goto fail; vgmstream->sample_rate = txth.sample_rate; vgmstream->num_samples = txth.num_samples; vgmstream->loop_start_sample = txth.loop_start_sample; vgmstream->loop_end_sample = txth.loop_end_sample; vgmstream->num_streams = txth.subsong_count; vgmstream->stream_size = txth.data_size; if (txth.name_offset_set) { size_t name_size = txth.name_size ? txth.name_size + 1 : STREAM_NAME_SIZE; read_string(vgmstream->stream_name,name_size, txth.name_offset,txth.sf_head); } /* codec specific (taken from GENH with minimal changes) */ switch (coding) { case coding_PCM8_U_int: vgmstream->layout_type = layout_none; break; case coding_PCM16LE: case coding_PCM16BE: case coding_PCM8: case coding_PCM8_U: case coding_PCM4: case coding_PCM4_U: case coding_SDX2: case coding_PSX: case coding_PSX_badflags: case coding_DVI_IMA: case coding_IMA: case coding_AICA: case coding_APPLE_IMA4: case coding_TGC: vgmstream->interleave_block_size = txth.interleave; vgmstream->interleave_last_block_size = txth.interleave_last; if (vgmstream->channels > 1) { if (coding == coding_SDX2) { coding = coding_SDX2_int; } if (vgmstream->interleave_block_size==0xffffffff || vgmstream->interleave_block_size == 0) { vgmstream->layout_type = layout_none; } else { vgmstream->layout_type = layout_interleave; if (coding == coding_DVI_IMA) coding = coding_DVI_IMA_int; if (coding == coding_IMA) coding = coding_IMA_int; if (coding == coding_AICA) coding = coding_AICA_int; } /* to avoid endless loops */ if (!txth.interleave && ( coding == coding_PSX || coding == coding_PSX_badflags || coding == coding_IMA_int || coding == coding_DVI_IMA_int || coding == coding_SDX2_int || coding == coding_AICA_int) ) { goto fail; } } else { vgmstream->layout_type = layout_none; } /* to avoid problems with dual stereo files (_L+_R) for codecs with stereo modes */ if (coding == coding_AICA && txth.channels == 1) coding = coding_AICA_int; /* setup adpcm */ if (coding == coding_AICA || coding == coding_AICA_int) { int ch; for (ch = 0; ch < vgmstream->channels; ch++) { vgmstream->ch[ch].adpcm_step_index = 0x7f; } } if (coding == coding_PCM4 || coding == coding_PCM4_U) { /* high nibble or low nibble first */ vgmstream->codec_config = txth.codec_mode; } break; case coding_PCFX: vgmstream->interleave_block_size = txth.interleave; vgmstream->interleave_last_block_size = txth.interleave_last; vgmstream->layout_type = layout_interleave; if (txth.codec_mode >= 0 && txth.codec_mode <= 3) vgmstream->codec_config = txth.codec_mode; break; case coding_OKI16: case coding_OKI4S: vgmstream->layout_type = layout_none; break; case coding_ASF: vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = 0x11; break; case coding_EA_XA: /* from 'raw' modes in sx.exe [Harry Potter and the Chamber of Secrets (PC)] */ if (txth.codec_mode == 1) { /* mono interleave */ coding = coding_EA_XA_int; vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = txth.interleave; vgmstream->interleave_last_block_size = txth.interleave_last; } else { /* mono/stereo */ if (vgmstream->channels > 2) goto fail; /* only 1ch and 2ch are known */ vgmstream->layout_type = layout_none; } break; case coding_MS_IMA: if (!txth.interleave) goto fail; /* creates garbage */ vgmstream->interleave_block_size = txth.interleave; vgmstream->layout_type = layout_none; break; case coding_MSADPCM: if (vgmstream->channels > 2) goto fail; if (!txth.interleave) goto fail; vgmstream->frame_size = txth.interleave; vgmstream->layout_type = layout_none; break; case coding_XBOX_IMA: if (txth.codec_mode == 1) { /* mono interleave */ coding = coding_XBOX_IMA_int; vgmstream->layout_type = layout_interleave; vgmstream->interleave_block_size = txth.interleave; vgmstream->interleave_last_block_size = txth.interleave_last; } else { /* 1ch mono, or stereo interleave */ vgmstream->layout_type = txth.interleave ? layout_interleave : layout_none; vgmstream->interleave_block_size = txth.interleave; vgmstream->interleave_last_block_size = txth.interleave_last; if (vgmstream->channels > 2 && vgmstream->channels % 2 != 0) goto fail; /* only 2ch+..+2ch layout is known */ } break; case coding_NGC_DTK: if (vgmstream->channels != 2) goto fail; vgmstream->layout_type = layout_none; break; case coding_NGC_DSP: if (txth.channels > 1 && txth.codec_mode == 0) { if (!txth.interleave) goto fail; vgmstream->layout_type = layout_interleave; vgmstream->interleave_last_block_size = txth.interleave_last; vgmstream->interleave_block_size = txth.interleave; } else if (txth.channels > 1 && txth.codec_mode == 1) { if (!txth.interleave) goto fail; coding = coding_NGC_DSP_subint; vgmstream->layout_type = layout_none; vgmstream->interleave_block_size = txth.interleave; } else if (txth.channels == 1 || txth.codec_mode == 2) { vgmstream->layout_type = layout_none; } else { goto fail; } /* get coefs */ { int16_t (*read_16bit)(off_t, STREAMFILE*) = txth.coef_big_endian ? read_16bitBE : read_16bitLE; int16_t (*get_16bit)(const uint8_t* p) = txth.coef_big_endian ? get_16bitBE : get_16bitLE; for (i = 0; i < vgmstream->channels; i++) { if (txth.coef_mode == 0) { /* normal coefs */ for (j = 0; j < 16; j++) { int16_t coef; if (txth.coef_table_set) coef = get_16bit(txth.coef_table + i*txth.coef_spacing + j*2); else coef = read_16bit(txth.coef_offset + i*txth.coef_spacing + j*2, txth.sf_head); vgmstream->ch[i].adpcm_coef[j] = coef; } } else { /* split coefs */ goto fail; //IDK what is this /* for (j = 0; j < 8; j++) { vgmstream->ch[i].adpcm_coef[j*2] = read_16bit(genh.coef_offset + i*genh.coef_spacing + j*2, txth.sf_head); vgmstream->ch[i].adpcm_coef[j*2+1] = read_16bit(genh.coef_split_offset + i*genh.coef_split_spacing + j*2, txth.sf_head); } */ } } } /* get hist */ if (txth.hist_set) { int16_t (*read_16bit)(off_t , STREAMFILE*) = txth.hist_big_endian ? read_16bitBE : read_16bitLE; for (i = 0; i < vgmstream->channels; i++) { off_t offset = txth.hist_offset + i*txth.hist_spacing; vgmstream->ch[i].adpcm_history1_16 = read_16bit(offset + 0x00, txth.sf_head); vgmstream->ch[i].adpcm_history2_16 = read_16bit(offset + 0x02, txth.sf_head); } } break; #ifdef VGM_USE_MPEG case coding_MPEG_layer3: vgmstream->layout_type = layout_none; vgmstream->codec_data = init_mpeg(txth.sf_body, txth.start_offset, &coding, vgmstream->channels); if (!vgmstream->codec_data) goto fail; break; #endif #ifdef VGM_USE_FFMPEG case coding_FFmpeg: { ffmpeg_codec_data *ffmpeg_data = NULL; if (txth.codec == FFMPEG || txth.codec == AC3 || txth.codec == AAC) { /* default FFmpeg */ ffmpeg_data = init_ffmpeg_offset(txth.sf_body, txth.start_offset,txth.data_size); if ( !ffmpeg_data ) goto fail; if (vgmstream->num_samples == 0) vgmstream->num_samples = ffmpeg_data->totalSamples; /* sometimes works */ } else { /* fake header FFmpeg */ uint8_t buf[0x100]; int32_t bytes; if (txth.codec == ATRAC3) { int block_align, encoder_delay; block_align = txth.interleave; encoder_delay = txth.skip_samples; ffmpeg_data = init_ffmpeg_atrac3_raw(txth.sf_body, txth.start_offset,txth.data_size, vgmstream->num_samples,vgmstream->channels,vgmstream->sample_rate, block_align, encoder_delay); if (!ffmpeg_data) goto fail; } else if (txth.codec == ATRAC3PLUS) { int block_size = txth.interleave; bytes = ffmpeg_make_riff_atrac3plus(buf, sizeof(buf), vgmstream->num_samples, txth.data_size, vgmstream->channels, vgmstream->sample_rate, block_size, txth.skip_samples); ffmpeg_data = init_ffmpeg_header_offset(txth.sf_body, buf,bytes, txth.start_offset,txth.data_size); if ( !ffmpeg_data ) goto fail; } else if (txth.codec == XMA1) { int xma_stream_mode = txth.codec_mode == 1 ? 1 : 0; bytes = ffmpeg_make_riff_xma1(buf, sizeof(buf), vgmstream->num_samples, txth.data_size, vgmstream->channels, vgmstream->sample_rate, xma_stream_mode); ffmpeg_data = init_ffmpeg_header_offset(txth.sf_body, buf,bytes, txth.start_offset,txth.data_size); if ( !ffmpeg_data ) goto fail; } else if (txth.codec == XMA2) { int block_count, block_size; block_size = txth.interleave ? txth.interleave : 2048; block_count = txth.data_size / block_size; bytes = ffmpeg_make_riff_xma2(buf, sizeof(buf), vgmstream->num_samples, txth.data_size, vgmstream->channels, vgmstream->sample_rate, block_count, block_size); ffmpeg_data = init_ffmpeg_header_offset(txth.sf_body, buf,bytes, txth.start_offset,txth.data_size); if ( !ffmpeg_data ) goto fail; } else { goto fail; } } vgmstream->codec_data = ffmpeg_data; vgmstream->layout_type = layout_none; if (txth.codec == XMA1 || txth.codec == XMA2) { xma_fix_raw_samples(vgmstream, txth.sf_body, txth.start_offset,txth.data_size, 0, 0,0); } else if (txth.skip_samples_set && txth.codec != ATRAC3) { /* force encoder delay */ ffmpeg_set_skip_samples(ffmpeg_data, txth.skip_samples); } break; } #endif default: break; } #ifdef VGM_USE_FFMPEG if ((txth.sample_type==1 || txth.num_samples_data_size) && (txth.codec == XMA1 || txth.codec == XMA2)) { /* manually find sample offsets */ ms_sample_data msd = {0}; msd.xma_version = 1; msd.channels = txth.channels; msd.data_offset = txth.start_offset; msd.data_size = txth.data_size; if (txth.sample_type==1) { msd.loop_flag = txth.loop_flag; msd.loop_start_b = txth.loop_start_sample; msd.loop_end_b = txth.loop_end_sample; msd.loop_start_subframe = txth.loop_adjust & 0xF; /* lower 4b: subframe where the loop starts, 0..4 */ msd.loop_end_subframe = txth.loop_adjust >> 4; /* upper 4b: subframe where the loop ends, 0..3 */ } xma_get_samples(&msd, txth.sf_body); vgmstream->num_samples = msd.num_samples; if (txth.sample_type==1) { vgmstream->loop_start_sample = msd.loop_start_sample; vgmstream->loop_end_sample = msd.loop_end_sample; } } #endif vgmstream->coding_type = coding; vgmstream->meta_type = meta_TXTH; vgmstream->allow_dual_stereo = 1; if ( !vgmstream_open_stream(vgmstream,txth.sf_body,txth.start_offset) ) goto fail; clean_txth(&txth); return vgmstream; fail: clean_txth(&txth); close_vgmstream(vgmstream); return NULL; } static VGMSTREAM* init_subfile(txth_header* txth) { VGMSTREAM* vgmstream = NULL; char extension[PATH_LIMIT]; STREAMFILE* sf_sub = NULL; if (txth->subfile_size == 0) { if (txth->data_size_set) txth->subfile_size = txth->data_size; else txth->subfile_size = txth->data_size - txth->subfile_offset; if (txth->subfile_size + txth->subfile_offset > get_streamfile_size(txth->sf_body)) txth->subfile_size = get_streamfile_size(txth->sf_body) - txth->subfile_offset; } if (txth->subfile_extension[0] == '\0') get_streamfile_ext(txth->sf,txth->subfile_extension,sizeof(txth->subfile_extension)); /* must detect a potential infinite loop: * - init_vgmstream enters TXTH and reads .txth * - TXTH subfile calls init, nothing is detected * - init_vgmstream enters TXTH and reads .txth * - etc * to avoid it we set a particular fake extension and detect it when reading .txth */ strcpy(extension, "subfile_txth."); strcat(extension, txth->subfile_extension); sf_sub = setup_subfile_streamfile(txth->sf_body, txth->subfile_offset, txth->subfile_size, extension); if (!sf_sub) goto fail; sf_sub->stream_index = txth->sf->stream_index; vgmstream = init_vgmstream_from_STREAMFILE(sf_sub); if (!vgmstream) { /* In case of subfiles with subsongs pass subsong N by default (ex. subfile is a .fsb with N subsongs). * But if the subfile is a single-subsong subfile (ex. subfile is a .fsb with 1 subsong) try again * without passing index (as it would fail first trying to open subsong N). */ if (sf_sub->stream_index > 1) { sf_sub->stream_index = 0; vgmstream = init_vgmstream_from_STREAMFILE(sf_sub); if (!vgmstream) goto fail; } else { goto fail; } } /* apply some fields */ if (txth->sample_rate) vgmstream->sample_rate = txth->sample_rate; if (txth->num_samples) vgmstream->num_samples = txth->num_samples; if (txth->loop_flag) { vgmstream_force_loop(vgmstream, txth->loop_flag, txth->loop_start_sample, txth->loop_end_sample); } else if (txth->loop_flag_set && vgmstream->loop_flag) { vgmstream_force_loop(vgmstream, 0, 0, 0); } /* assumes won't point to subfiles with subsongs */ if (/*txth->chunk_count &&*/ txth->subsong_count) { vgmstream->num_streams = txth->subsong_count; } //todo: other combos with subsongs + subfile? /* load some fields for possible calcs */ if (!txth->channels) txth->channels = vgmstream->channels; if (!txth->sample_rate) txth->sample_rate = vgmstream->sample_rate; if (!txth->interleave) txth->interleave = vgmstream->interleave_block_size; if (!txth->interleave_last) txth->interleave_last = vgmstream->interleave_last_block_size; //if (!txth->loop_flag) //? // txth->loop_flag = vgmstream->loop_flag; close_streamfile(sf_sub); return vgmstream; fail: close_streamfile(sf_sub); close_vgmstream(vgmstream); return NULL; } static STREAMFILE* open_txth(STREAMFILE* sf) { char basename[PATH_LIMIT]; char filename[PATH_LIMIT]; char fileext[PATH_LIMIT]; const char *subext; STREAMFILE* sf_text; /* try "(path/)(name.ext).txth" */ get_streamfile_name(sf,filename,PATH_LIMIT); if (strstr(filename, "subfile_txth") != NULL) return NULL; /* detect special case of subfile-within-subfile */ strcat(filename, ".txth"); sf_text = open_streamfile(sf,filename); if (sf_text) return sf_text; /* try "(path/)(.sub.ext).txth" */ get_streamfile_basename(sf,basename,PATH_LIMIT); subext = filename_extension(basename); if (subext != NULL) { get_streamfile_path(sf,filename,PATH_LIMIT); get_streamfile_ext(sf,fileext,PATH_LIMIT); strcat(filename,"."); strcat(filename, subext); strcat(filename,"."); strcat(filename, fileext); strcat(filename, ".txth"); sf_text = open_streamfile(sf,filename); if (sf_text) return sf_text; } /* try "(path/)(.ext).txth" */ get_streamfile_path(sf,filename,PATH_LIMIT); get_streamfile_ext(sf,fileext,PATH_LIMIT); strcat(filename,"."); strcat(filename, fileext); strcat(filename, ".txth"); sf_text = open_streamfile(sf,filename); if (sf_text) return sf_text; /* try "(path/).txth" */ get_streamfile_path(sf,filename,PATH_LIMIT); strcat(filename, ".txth"); sf_text = open_streamfile(sf,filename); if (sf_text) return sf_text; /* not found */ return NULL; } static void clean_txth(txth_header* txth) { /* close stuff manually opened during parse */ if (txth->sf_text_opened) close_streamfile(txth->sf_text); if (txth->sf_head_opened) close_streamfile(txth->sf_head); if (txth->sf_body_opened) close_streamfile(txth->sf_body); } /* ****************************************************************** */ static void set_body_chunk(txth_header* txth) { STREAMFILE* temp_sf = NULL; /* sets body "chunk" if all needed values are set * (done inline for padding/get_samples/etc calculators to work) */ //todo maybe should only be done once, or have some count to retrigger to simplify? if (!txth->chunk_start_set || !txth->chunk_size_set || !txth->chunk_count_set) return; if (txth->chunk_size == 0 || txth->chunk_start > txth->data_size || txth->chunk_count == 0) return; if (!txth->sf_body) return; /* treat chunks as subsongs */ if (txth->subsong_count > 1) txth->chunk_number = txth->target_subsong; if (txth->chunk_number == 0) txth->chunk_number = 1; if (txth->chunk_number > txth->chunk_count) return; { txth_io_config_data cfg = {0}; cfg.chunk_start = txth->chunk_start; cfg.chunk_header_size = txth->chunk_header_size; cfg.chunk_data_size = txth->chunk_data_size; cfg.chunk_size = txth->chunk_size; cfg.chunk_count = txth->chunk_count; cfg.chunk_number = txth->chunk_number - 1; /* 1-index to 0-index */ temp_sf = setup_txth_streamfile(txth->sf_body, cfg, txth->sf_body_opened); if (!temp_sf) return; } /* closing is handled by temp_sf */ //if (txth->sf_body_opened) { // close_streamfile(txth->sf_body); // txth->sf_body = NULL; // txth->sf_body_opened = 0; //} txth->sf_body = temp_sf; txth->sf_body_opened = 1; /* cancel values once set, to avoid weirdness and possibly allow chunks-in-chunks? */ txth->chunk_start_set = 0; txth->chunk_size_set = 0; txth->chunk_count_set = 0; /* re-apply */ if (!txth->data_size_set) { txth->data_size = get_streamfile_size(txth->sf_body); } } static int parse_keyval(STREAMFILE* sf, txth_header* txth, const char * key, char * val); static int parse_num(STREAMFILE* sf, txth_header* txth, const char * val, uint32_t * out_value); static int parse_string(STREAMFILE* sf, txth_header* txth, const char * val, char * str); static int parse_coef_table(STREAMFILE* sf, txth_header* txth, const char * val, uint8_t * out_value, size_t out_size); static int parse_name_table(txth_header* txth, char * val); static int is_string(const char * val, const char * cmp); static int get_bytes_to_samples(txth_header* txth, uint32_t bytes); static int get_padding_size(txth_header* txth, int discard_empty); /* Simple text parser of "key = value" lines. * The code is meh and error handling not exactly the best. */ static int parse_txth(txth_header* txth) { off_t txt_offset = 0x00; off_t file_size = get_streamfile_size(txth->sf_text); /* setup txth defaults */ if (txth->sf_body) txth->data_size = get_streamfile_size(txth->sf_body); txth->target_subsong = txth->sf->stream_index; if (txth->target_subsong == 0) txth->target_subsong = 1; /* skip BOM if needed */ if ((uint16_t)read_16bitLE(0x00, txth->sf_text) == 0xFFFE || (uint16_t)read_16bitLE(0x00, txth->sf_text) == 0xFEFF) { txt_offset = 0x02; } else if (((uint32_t)read_32bitBE(0x00, txth->sf_text) & 0xFFFFFF00) == 0xEFBBBF00) { txt_offset = 0x03; } /* read lines */ while (txt_offset < file_size) { char line[TXT_LINE_MAX]; char key[TXT_LINE_MAX] = {0}, val[TXT_LINE_MAX] = {0}; /* at least as big as a line to avoid overflows (I hope) */ int ok, bytes_read, line_ok; bytes_read = read_line(line, sizeof(line), txt_offset, txth->sf_text, &line_ok); if (!line_ok) goto fail; //;VGM_LOG("TXTH: line=%s\n",line); txt_offset += bytes_read; /* get key/val (ignores lead spaces, stops at space/comment/separator) */ ok = sscanf(line, " %[^ \t#=] = %[^\t#\r\n] ", key,val); if (ok != 2) /* ignore line if no key=val (comment or garbage) */ continue; if (!parse_keyval(txth->sf, txth, key, val)) /* read key/val */ goto fail; } if (!txth->loop_flag_set) txth->loop_flag = txth->loop_end_sample && txth->loop_end_sample != 0xFFFFFFFF; if (!txth->sf_body) goto fail; if (txth->data_size > get_streamfile_size(txth->sf_body) - txth->start_offset || txth->data_size <= 0) txth->data_size = get_streamfile_size(txth->sf_body) - txth->start_offset; return 1; fail: return 0; } static int parse_keyval(STREAMFILE* sf_, txth_header* txth, const char * key, char * val) { //;VGM_LOG("TXTH: key=%s, val=%s\n", key, val); /* CODEC */ if (is_string(key,"codec")) { if (is_string(val,"PSX")) txth->codec = PSX; else if (is_string(val,"XBOX")) txth->codec = XBOX; else if (is_string(val,"NGC_DTK")) txth->codec = NGC_DTK; else if (is_string(val,"DTK")) txth->codec = NGC_DTK; else if (is_string(val,"PCM16BE")) txth->codec = PCM16BE; else if (is_string(val,"PCM16LE")) txth->codec = PCM16LE; else if (is_string(val,"PCM8")) txth->codec = PCM8; else if (is_string(val,"SDX2")) txth->codec = SDX2; else if (is_string(val,"DVI_IMA")) txth->codec = DVI_IMA; else if (is_string(val,"MPEG")) txth->codec = MPEG; else if (is_string(val,"IMA")) txth->codec = IMA; else if (is_string(val,"AICA")) txth->codec = AICA; else if (is_string(val,"MSADPCM")) txth->codec = MSADPCM; else if (is_string(val,"NGC_DSP")) txth->codec = NGC_DSP; else if (is_string(val,"DSP")) txth->codec = NGC_DSP; else if (is_string(val,"PCM8_U_int")) txth->codec = PCM8_U_int; else if (is_string(val,"PSX_bf")) txth->codec = PSX_bf; else if (is_string(val,"MS_IMA")) txth->codec = MS_IMA; else if (is_string(val,"PCM8_U")) txth->codec = PCM8_U; else if (is_string(val,"APPLE_IMA4")) txth->codec = APPLE_IMA4; else if (is_string(val,"ATRAC3")) txth->codec = ATRAC3; else if (is_string(val,"ATRAC3PLUS")) txth->codec = ATRAC3PLUS; else if (is_string(val,"XMA1")) txth->codec = XMA1; else if (is_string(val,"XMA2")) txth->codec = XMA2; else if (is_string(val,"FFMPEG")) txth->codec = FFMPEG; else if (is_string(val,"AC3")) txth->codec = AC3; else if (is_string(val,"PCFX")) txth->codec = PCFX; else if (is_string(val,"PCM4")) txth->codec = PCM4; else if (is_string(val,"PCM4_U")) txth->codec = PCM4_U; else if (is_string(val,"OKI16")) txth->codec = OKI16; else if (is_string(val,"OKI4S")) txth->codec = OKI4S; else if (is_string(val,"AAC")) txth->codec = AAC; else if (is_string(val,"TGC")) txth->codec = TGC; else if (is_string(val,"GCOM_ADPCM")) txth->codec = TGC; else if (is_string(val,"ASF")) txth->codec = ASF; else if (is_string(val,"EAXA")) txth->codec = EAXA; else goto fail; /* set common interleaves to simplify usage * (do it here to in case it's overwritten later, possibly with 0 on purpose) */ if (txth->interleave == 0) { switch(txth->codec) { case PSX: txth->interleave = 0x10; break; case PSX_bf: txth->interleave = 0x10; break; case NGC_DSP: txth->interleave = 0x08; break; case PCM16LE: txth->interleave = 0x02; break; case PCM16BE: txth->interleave = 0x02; break; case PCM8: txth->interleave = 0x01; break; case PCM8_U: txth->interleave = 0x01; break; default: break; } } } else if (is_string(key,"codec_mode")) { if (!parse_num(txth->sf_head,txth,val, &txth->codec_mode)) goto fail; } /* VALUE MODIFIERS */ else if (is_string(key,"value_mul") || is_string(key,"value_*")) { if (!parse_num(txth->sf_head,txth,val, &txth->value_mul)) goto fail; } else if (is_string(key,"value_div") || is_string(key,"value_/")) { if (!parse_num(txth->sf_head,txth,val, &txth->value_div)) goto fail; } else if (is_string(key,"value_add") || is_string(key,"value_+")) { if (!parse_num(txth->sf_head,txth,val, &txth->value_add)) goto fail; } else if (is_string(key,"value_sub") || is_string(key,"value_-")) { if (!parse_num(txth->sf_head,txth,val, &txth->value_sub)) goto fail; } /* ID VALUES */ else if (is_string(key,"id_value")) { if (!parse_num(txth->sf_head,txth,val, &txth->id_value)) goto fail; } else if (is_string(key,"id_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->id_offset)) goto fail; if (txth->id_value != txth->id_offset) /* evaluate current ID */ goto fail; } /* INTERLEAVE / FRAME SIZE */ else if (is_string(key,"interleave")) { if (is_string(val,"half_size")) { if (txth->channels == 0) goto fail; txth->interleave = txth->data_size / txth->channels; } else { if (!parse_num(txth->sf_head,txth,val, &txth->interleave)) goto fail; } } else if (is_string(key,"interleave_last")) { if (is_string(val,"auto")) { if (txth->channels > 0 && txth->interleave > 0) txth->interleave_last = (txth->data_size % (txth->interleave * txth->channels)) / txth->channels; } else { if (!parse_num(txth->sf_head,txth,val, &txth->interleave_last)) goto fail; } } /* BASE CONFIG */ else if (is_string(key,"channels")) { if (!parse_num(txth->sf_head,txth,val, &txth->channels)) goto fail; } else if (is_string(key,"sample_rate")) { if (!parse_num(txth->sf_head,txth,val, &txth->sample_rate)) goto fail; } /* DATA CONFIG */ else if (is_string(key,"start_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->start_offset)) goto fail; /* apply */ if (!txth->data_size_set) { /* with subsongs we want to clamp data_size from this subsong start to next subsong start */ txth->next_offset = txth->data_size; if (txth->subsong_count > 1 && txth->target_subsong < txth->subsong_count) { /* temp move to next start_offset and move back*/ txth->target_subsong++; parse_num(txth->sf_head,txth,val, &txth->next_offset); txth->target_subsong--; if (txth->next_offset < txth->start_offset) txth->next_offset = 0; } if (txth->data_size && txth->data_size > txth->next_offset && txth->next_offset) txth->data_size = txth->next_offset; if (txth->data_size && txth->data_size > txth->start_offset) txth->data_size -= txth->start_offset; } } else if (is_string(key,"padding_size")) { if (is_string(val,"auto")) { txth->padding_size = get_padding_size(txth, 0); } else if (is_string(val,"auto-empty")) { txth->padding_size = get_padding_size(txth, 1); } else { if (!parse_num(txth->sf_head,txth,val, &txth->padding_size)) goto fail; } /* apply */ if (!txth->data_size_set) { if (txth->data_size && txth->data_size > txth->padding_size) txth->data_size -= txth->padding_size; } } else if (is_string(key,"data_size")) { if (!parse_num(txth->sf_head,txth,val, &txth->data_size)) goto fail; txth->data_size_set = 1; } /* SAMPLES */ else if (is_string(key,"sample_type")) { if (is_string(val,"samples")) txth->sample_type = 0; else if (is_string(val,"bytes")) txth->sample_type = 1; else if (is_string(val,"blocks")) txth->sample_type = 2; else goto fail; } else if (is_string(key,"num_samples")) { if (is_string(val,"data_size")) { txth->num_samples = get_bytes_to_samples(txth, txth->data_size); txth->num_samples_data_size = 1; } else { if (!parse_num(txth->sf_head,txth,val, &txth->num_samples)) goto fail; if (txth->sample_type==1) txth->num_samples = get_bytes_to_samples(txth, txth->num_samples); if (txth->sample_type==2) txth->num_samples = get_bytes_to_samples(txth, txth->num_samples * (txth->interleave*txth->channels)); } } else if (is_string(key,"loop_start_sample") || is_string(key,"loop_start")) { if (!parse_num(txth->sf_head,txth,val, &txth->loop_start_sample)) goto fail; if (txth->sample_type==1) txth->loop_start_sample = get_bytes_to_samples(txth, txth->loop_start_sample); if (txth->sample_type==2) txth->loop_start_sample = get_bytes_to_samples(txth, txth->loop_start_sample * (txth->interleave*txth->channels)); if (txth->loop_adjust) txth->loop_start_sample += txth->loop_adjust; } else if (is_string(key,"loop_end_sample") || is_string(key,"loop_end")) { if (is_string(val,"data_size")) { txth->loop_end_sample = get_bytes_to_samples(txth, txth->data_size); } else { if (!parse_num(txth->sf_head,txth,val, &txth->loop_end_sample)) goto fail; if (txth->sample_type==1) txth->loop_end_sample = get_bytes_to_samples(txth, txth->loop_end_sample); if (txth->sample_type==2) txth->loop_end_sample = get_bytes_to_samples(txth, txth->loop_end_sample * (txth->interleave*txth->channels)); } if (txth->loop_adjust) txth->loop_end_sample += txth->loop_adjust; } else if (is_string(key,"skip_samples")) { if (!parse_num(txth->sf_head,txth,val, &txth->skip_samples)) goto fail; txth->skip_samples_set = 1; if (txth->sample_type==1) txth->skip_samples = get_bytes_to_samples(txth, txth->skip_samples); if (txth->sample_type==2) txth->skip_samples = get_bytes_to_samples(txth, txth->skip_samples * (txth->interleave*txth->channels)); } else if (is_string(key,"loop_adjust")) { if (!parse_num(txth->sf_head,txth,val, &txth->loop_adjust)) goto fail; if (txth->sample_type==1) txth->loop_adjust = get_bytes_to_samples(txth, txth->loop_adjust); if (txth->sample_type==2) txth->loop_adjust = get_bytes_to_samples(txth, txth->loop_adjust * (txth->interleave*txth->channels)); } else if (is_string(key,"loop_flag")) { if (is_string(val,"auto")) { txth->loop_flag_auto = 1; } else { if (!parse_num(txth->sf_head,txth,val, &txth->loop_flag)) goto fail; txth->loop_flag_set = 1; if (txth->loop_behavior == DEFAULT) { if ((txth->loop_flag == 0xFFFF || txth->loop_flag == 0xFFFFFFFF) ) txth->loop_flag = 0; } else if (txth->loop_behavior == NEGATIVE) { if (txth->loop_flag == 0xFF || txth->loop_flag == 0xFFFF || txth->loop_flag == 0xFFFFFFFF) txth->loop_flag = 1; } else if (txth->loop_behavior == POSITIVE) { if (txth->loop_flag == 0xFF || txth->loop_flag == 0xFFFF || txth->loop_flag == 0xFFFFFFFF) txth->loop_flag = 0; } else if (txth->loop_behavior == INVERTED) { txth->loop_flag = (txth->loop_flag == 0); } } } else if (is_string(key,"loop_behavior")) { if (is_string(val, "default")) txth->loop_behavior = DEFAULT; else if (is_string(val, "negative")) txth->loop_behavior = NEGATIVE; else if (is_string(val, "positive")) txth->loop_behavior = POSITIVE; else if (is_string(val, "inverted")) txth->loop_behavior = INVERTED; else goto fail; } /* COEFS */ else if (is_string(key,"coef_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->coef_offset)) goto fail; /* special adjustments */ txth->coef_offset += txth->base_offset; if (txth->subsong_spacing) txth->coef_offset += txth->subsong_spacing * (txth->target_subsong - 1); } else if (is_string(key,"coef_spacing")) { if (!parse_num(txth->sf_head,txth,val, &txth->coef_spacing)) goto fail; } else if (is_string(key,"coef_endianness")) { if (is_string(val, "BE")) txth->coef_big_endian = 1; else if (is_string(val, "LE")) txth->coef_big_endian = 0; else if (!parse_num(txth->sf_head,txth,val, &txth->coef_big_endian)) goto fail; } else if (is_string(key,"coef_mode")) { if (!parse_num(txth->sf_head,txth,val, &txth->coef_mode)) goto fail; } else if (is_string(key,"coef_table")) { if (!parse_coef_table(txth->sf_head,txth,val, txth->coef_table, sizeof(txth->coef_table))) goto fail; txth->coef_table_set = 1; } /* HIST */ else if (is_string(key,"hist_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->hist_offset)) goto fail; txth->hist_set = 1; /* special adjustment */ txth->hist_offset += txth->hist_offset; if (txth->subsong_spacing) txth->hist_offset += txth->subsong_spacing * (txth->target_subsong - 1); } else if (is_string(key,"hist_spacing")) { if (!parse_num(txth->sf_head,txth,val, &txth->hist_spacing)) goto fail; } else if (is_string(key,"hist_endianness")) { if (is_string(val, "BE")) txth->hist_big_endian = 1; else if (is_string(val, "LE")) txth->hist_big_endian = 0; else if (!parse_num(txth->sf_head,txth,val, &txth->hist_big_endian)) goto fail; } /* SUBSONGS */ else if (is_string(key,"subsong_count")) { if (!parse_num(txth->sf_head,txth,val, &txth->subsong_count)) goto fail; } else if (is_string(key,"subsong_spacing") || is_string(key,"subsong_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->subsong_spacing)) goto fail; } else if (is_string(key,"name_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->name_offset)) goto fail; txth->name_offset_set = 1; /* special adjustment */ txth->name_offset += txth->base_offset; if (txth->subsong_spacing) txth->name_offset += txth->subsong_spacing * (txth->target_subsong - 1); } else if (is_string(key,"name_offset_absolute")) { if (!parse_num(txth->sf_head,txth,val, &txth->name_offset)) goto fail; txth->name_offset_set = 1; /* special adjustment */ txth->name_offset += txth->base_offset; /* unlike the above this is meant for reads that point to somewhere in the file, regardless subsong number */ } else if (is_string(key,"name_size")) { if (!parse_num(txth->sf_head,txth,val, &txth->name_size)) goto fail; } /* SUBFILES */ else if (is_string(key,"subfile_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->subfile_offset)) goto fail; txth->subfile_set = 1; } else if (is_string(key,"subfile_size")) { if (!parse_num(txth->sf_head,txth,val, &txth->subfile_size)) goto fail; txth->subfile_set = 1; } else if (is_string(key,"subfile_extension")) { if (!parse_string(txth->sf_head,txth,val, txth->subfile_extension)) goto fail; txth->subfile_set = 1; } /* HEADER/BODY CONFIG */ else if (is_string(key,"header_file")) { if (txth->sf_head_opened) { close_streamfile(txth->sf_head); txth->sf_head = NULL; txth->sf_head_opened = 0; } if (is_string(val,"null")) { /* reset */ if (!txth->streamfile_is_txth) { txth->sf_head = txth->sf; } } else if (val[0]=='*' && val[1]=='.') { /* basename + extension */ txth->sf_head = open_streamfile_by_ext(txth->sf, (val+2)); if (!txth->sf_head) goto fail; txth->sf_head_opened = 1; } else { /* open file */ fix_dir_separators(val); /* clean paths */ txth->sf_head = open_streamfile_by_filename(txth->sf, val); if (!txth->sf_head) goto fail; txth->sf_head_opened = 1; } } else if (is_string(key,"body_file")) { if (txth->sf_body_opened) { close_streamfile(txth->sf_body); txth->sf_body = NULL; txth->sf_body_opened = 0; } if (is_string(val,"null")) { /* reset */ if (!txth->streamfile_is_txth) { txth->sf_body = txth->sf; } } else if (val[0]=='*' && val[1]=='.') { /* basename + extension */ txth->sf_body = open_streamfile_by_ext(txth->sf, (val+2)); if (!txth->sf_body) goto fail; txth->sf_body_opened = 1; } else { /* open file */ fix_dir_separators(val); /* clean paths */ txth->sf_body = open_streamfile_by_filename(txth->sf, val); if (!txth->sf_body) goto fail; txth->sf_body_opened = 1; } /* use body as header when opening a .txth directly to simplify things */ if (txth->streamfile_is_txth && !txth->sf_head_opened) { txth->sf_head = txth->sf_body; } /* re-apply */ if (!txth->data_size_set) { txth->data_size = get_streamfile_size(txth->sf_body); /* maybe should be manually set again? */ if (txth->data_size && txth->data_size > txth->next_offset && txth->next_offset) txth->data_size = txth->next_offset; if (txth->data_size && txth->data_size > txth->start_offset) txth->data_size -= txth->start_offset; if (txth->data_size && txth->data_size > txth->padding_size) txth->data_size -= txth->padding_size; } } /* CHUNKS */ else if (is_string(key,"chunk_number")) { if (!parse_num(txth->sf_head,txth,val, &txth->chunk_number)) goto fail; } else if (is_string(key,"chunk_start")) { if (!parse_num(txth->sf_head,txth,val, &txth->chunk_start)) goto fail; txth->chunk_start_set = 1; set_body_chunk(txth); } else if (is_string(key,"chunk_header_size")) { if (!parse_num(txth->sf_head,txth,val, &txth->chunk_header_size)) goto fail; //txth->chunk_header_size_set = 1; //set_body_chunk(txth); /* optional and should go before chunk_size */ } else if (is_string(key,"chunk_data_size")) { if (!parse_num(txth->sf_head,txth,val, &txth->chunk_data_size)) goto fail; //txth->chunk_data_size_set = 1; //set_body_chunk(txth); /* optional and should go before chunk_size */ } else if (is_string(key,"chunk_size")) { if (!parse_num(txth->sf_head,txth,val, &txth->chunk_size)) goto fail; txth->chunk_size_set = 1; set_body_chunk(txth); } else if (is_string(key,"chunk_count")) { if (!parse_num(txth->sf_head,txth,val, &txth->chunk_count)) goto fail; txth->chunk_count_set = 1; set_body_chunk(txth); } /* BASE OFFSET */ else if (is_string(key,"base_offset")) { if (!parse_num(txth->sf_head,txth,val, &txth->base_offset)) goto fail; } /* NAME TABLE */ else if (is_string(key,"name_table")) { if (!parse_name_table(txth,val)) goto fail; } /* DEFAULT */ else { VGM_LOG("TXTH: unknown key=%s, val=%s\n", key,val); goto fail; } //;VGM_LOG("TXTH: data_size=%x, start=%x, next=%x, padding=%x\n", txth->data_size, txth->start_offset, txth->next_offset, txth->padding_size); return 1; fail: return 0; } static int is_substring(const char * val, const char * cmp, int inline_field) { char chr; int len = strlen(cmp); /* "val" must contain "cmp" entirely */ if (strncmp(val, cmp, len) != 0) return 0; chr = val[len]; /* "val" can end with math for inline fields (like interleave*0x10) */ if (inline_field && (chr == '+' || chr == '-' || chr == '*' || chr == '/' || chr == '&')) return len; /* otherwise "val" ends in space or eof (to tell "interleave" and "interleave_last" apart) */ if (chr != '\0' && chr != ' ') return 0; return len; } static int is_string(const char * val, const char * cmp) { int len = is_substring(val, cmp, 0); if (!len) return 0; /* also test that after string there aren't other values * (comments are already removed but trailing spaces are allowed) */ while (val[len] != '\0') { if (val[len] != ' ') return 0; len++; } return len; } static int is_string_field(const char * val, const char * cmp) { return is_substring(val, cmp, 1); } static uint16_t get_string_wchar(const char * val, int pos, int *csize) { uint16_t wchar = 0; if ((val[pos] & 0x80) && val[pos+1] != '\0') { wchar = (((val[pos] << 8u) & 0xFF00) | (val[pos+1] & 0xFF)); //wchar = ((((uint16_t)val[pos] << 8u)) | ((uint16_t)val[pos+1])); if (csize) *csize = 2; if (wchar >= 0xc380 && wchar <= 0xc39f) /* ghetto lowercase for common letters */ wchar += 0x20; } else { wchar = val[pos]; if (csize) *csize = 1; if (wchar >= 0x41 && wchar <= 0x5a) wchar += 0x20; if (wchar == '\\') wchar = '/'; /* normalize paths */ } return wchar; } static int is_string_match(const char * text, const char * pattern) { int t_pos = 0, p_pos = 0; int p_size, t_size; uint16_t p_char, t_char; //;VGM_LOG("TXTH: match '%s' vs '%s'\n", text,pattern); /* compares 2 strings (case insensitive, to a point) allowing wildcards * ex. for "test": match = "Test*", "*est", "*teSt","T*ES*T"; fail = "tst", "teest" * * does some bleh UTF-8 handling, consuming dual bytes if needed (codepages set char's eighth bit). * as such it's slower than standard funcs, but it's not like we need it to be ultra fast. * */ while (text[t_pos] != '\0' && pattern[p_pos] != '\0') { //;VGM_LOG("TXTH: compare '%s' vs '%s'\n", (text+t_pos), (pattern+p_pos)); if (pattern[p_pos] == '*') { /* consume text wchars until one matches next pattern char */ p_pos++; p_char = get_string_wchar(pattern, p_pos, NULL); /* stop char, or null */ while(text[t_pos] != '\0') { t_char = get_string_wchar(text, t_pos, &t_size); //;VGM_LOG("TXTH: consume %i '%s'\n", t_size, (text+t_pos) ); if (t_char == p_char) break; t_pos += t_size; } } else if (pattern[p_pos] == '?') { /* skip next text wchar */ get_string_wchar(text, t_pos, &t_size); p_pos++; t_pos += t_size; } else { /* must match 1:1 */ t_char = get_string_wchar(text, t_pos, &t_size); p_char = get_string_wchar(pattern, p_pos, &p_size); if (p_char != t_char) break; p_pos += p_size; t_pos += t_size; } } //;VGM_LOG("TXTH: match '%s' vs '%s' = %s\n", text,pattern, (text[t_pos] == '\0' && pattern[p_pos] == '\0') ? "true" : "false"); /* either all chars consumed/matched and both pos point to null, or one didn't so string didn't match */ return text[t_pos] == '\0' && pattern[p_pos] == '\0'; } static int parse_string(STREAMFILE* sf, txth_header* txth, const char * val, char * str) { int n = 0; /* read string without trailing spaces */ if (sscanf(val, " %s%n[^ ]%n", str, &n, &n) != 1) return 0; return n; } static int parse_coef_table(STREAMFILE* sf, txth_header* txth, const char * val, uint8_t * out_value, size_t out_size) { uint32_t byte; int done = 0; /* read 2 char pairs = 1 byte ('N' 'N' 'M' 'M' = 0xNN 0xMM )*/ while (val[0] != '\0') { if (val[0] == ' ') { val++; continue; } if (val[0] == '0' && val[1] == 'x') /* allow "0x" before values */ val += 2; if (sscanf(val, " %2x", &byte) != 1) goto fail; if (done + 1 >= out_size) goto fail; out_value[done] = (uint8_t)byte; done++; val += 2; } return 1; fail: return 0; } static int parse_name_table(txth_header* txth, char * name_list) { STREAMFILE* nameFile = NULL; off_t txt_offset, file_size; char fullname[PATH_LIMIT]; char filename[PATH_LIMIT]; char basename[PATH_LIMIT]; /* just in case */ if (!txth->sf_text || !txth->sf_body) goto fail; /* trim name_list just in case */ { int name_list_len = strlen(name_list); int i; for (i = name_list_len - 1; i >= 0; i--) { if (name_list[i] != ' ') break; name_list[i] = '\0'; } } //;VGM_LOG("TXTH: name_list='%s'\n", name_list); /* open companion file near .txth */ nameFile = open_streamfile_by_filename(txth->sf_text, name_list); if (!nameFile) goto fail; get_streamfile_name(txth->sf_body, fullname, sizeof(filename)); get_streamfile_filename(txth->sf_body, filename, sizeof(filename)); get_streamfile_basename(txth->sf_body, basename, sizeof(basename)); //;VGM_LOG("TXTH: names full=%s, file=%s, base=%s\n", fullname, filename, basename); txt_offset = 0x00; file_size = get_streamfile_size(nameFile); /* skip BOM if needed */ if ((uint16_t)read_16bitLE(0x00, nameFile) == 0xFFFE || (uint16_t)read_16bitLE(0x00, nameFile) == 0xFEFF) { txt_offset = 0x02; } else if (((uint32_t)read_32bitBE(0x00, nameFile) & 0xFFFFFF00) == 0xEFBBBF00) { txt_offset = 0x03; } /* in case of repeated name_lists */ memset(txth->name_values, 0, sizeof(txth->name_values)); txth->name_values_count = 0; /* read lines and find target filename, format is (filename): value1, ... valueN */ while (txt_offset < file_size) { char line[TXT_LINE_MAX]; char key[TXT_LINE_MAX] = {0}, val[TXT_LINE_MAX] = {0}; int ok, bytes_read, line_ok; bytes_read = read_line(line, sizeof(line), txt_offset, nameFile, &line_ok); if (!line_ok) goto fail; //;VGM_LOG("TXTH: line=%s\n",line); txt_offset += bytes_read; /* get key/val (ignores lead spaces, stops at space/comment/separator) */ ok = sscanf(line, " %[^ \t#:] : %[^\t#\r\n] ", key,val); if (ok != 2) { /* ignore line if no key=val (comment or garbage) */ /* try again with " (empty): (val)) */ key[0] = '\0'; ok = sscanf(line, " : %[^\t#\r\n] ", val); if (ok != 1) continue; } //;VGM_LOG("TXTH: compare name '%s'\n", key); /* parse values if key (name) matches default ("") or filename with/without extension */ if (key[0]=='\0' || is_string_match(filename, key) || is_string_match(basename, key) || is_string_match(fullname, key)) { int n; char subval[TXT_LINE_MAX]; const char *current = val; while (current[0] != '\0') { ok = sscanf(current, " %[^\t#\r\n,]%n ", subval, &n); if (ok != 1) goto fail; current += n; if (current[0] == ',') current++; if (!parse_num(txth->sf_head,txth,subval, &txth->name_values[txth->name_values_count])) goto fail; txth->name_values_count++; if (txth->name_values_count >= 16) /* surely nobody needs that many */ goto fail; } //;VGM_LOG("TXTH: found name '%s'\n", key); break; /* target found */ } } /* ignore if name is not actually found (values will return 0) */ close_streamfile(nameFile); return 1; fail: close_streamfile(nameFile); return 0; } static int parse_num(STREAMFILE* sf, txth_header* txth, const char * val, uint32_t * out_value) { /* out_value can be these, save before modifying */ uint32_t value_mul = txth->value_mul; uint32_t value_div = txth->value_div; uint32_t value_add = txth->value_add; uint32_t value_sub = txth->value_sub; uint32_t subsong_spacing = txth->subsong_spacing; char op = ' '; int brackets = 0; uint32_t result = 0; //;VGM_LOG("TXTH: initial val '%s'\n", val); /* read "val" format: @(offset) (op) (field) (op) (number) ... */ while (val[0] != '\0') { uint32_t value = 0; char type = val[0]; int value_read = 0; int n = 0; if (type == ' ') { /* ignore */ n = 1; } else if (type == '(') { /* bracket */ brackets++; n = 1; } else if (type == ')') { /* bracket */ if (brackets == 0) goto fail; brackets--; n = 1; } else if (type == '+' || type == '-' || type == '/' || type == '*' || type == '&') { /* op */ op = type; n = 1; } else if (type == '@') { /* offset */ uint32_t offset = 0; char ed1 = 'L', ed2 = 'E'; int size = 4; int big_endian = 0; int hex = (val[1]=='0' && val[2]=='x'); /* can happen when loading .txth and not setting body/head */ if (!sf) goto fail; /* read exactly N fields in the expected format */ if (strchr(val,':') && strchr(val,'$')) { if (sscanf(val, hex ? "@%x:%c%c$%i%n" : "@%u:%c%c$%i%n", &offset, &ed1,&ed2, &size, &n) != 4) goto fail; } else if (strchr(val,':')) { if (sscanf(val, hex ? "@%x:%c%c%n" : "@%u:%c%c%n", &offset, &ed1,&ed2, &n) != 3) goto fail; } else if (strchr(val,'$')) { if (sscanf(val, hex ? "@%x$%i%n" : "@%u$%i%n", &offset, &size, &n) != 2) goto fail; } else { if (sscanf(val, hex ? "@%x%n" : "@%u%n", &offset, &n) != 1) goto fail; } /* adjust offset */ offset += txth->base_offset; if (/*offset < 0 ||*/ offset > get_streamfile_size(sf)) goto fail; if (ed1 == 'B' && ed2 == 'E') big_endian = 1; else if (!(ed1 == 'L' && ed2 == 'E')) goto fail; if (subsong_spacing) offset = offset + subsong_spacing * (txth->target_subsong - 1); switch(size) { case 1: value = (uint8_t)read_8bit(offset,sf); break; case 2: value = big_endian ? (uint16_t)read_16bitBE(offset,sf) : (uint16_t)read_16bitLE(offset,sf); break; case 3: value = (big_endian ? (uint32_t)read_32bitBE(offset,sf) : (uint32_t)read_32bitLE(offset,sf)) & 0x00FFFFFF; break; case 4: value = big_endian ? (uint32_t)read_32bitBE(offset,sf) : (uint32_t)read_32bitLE(offset,sf); break; default: goto fail; } value_read = 1; } else if (type >= '0' && type <= '9') { /* unsigned constant */ int hex = (val[0]=='0' && val[1]=='x'); if (sscanf(val, hex ? "%x%n" : "%u%n", &value, &n) != 1) goto fail; value_read = 1; } else { /* known field */ if ((n = is_string_field(val,"interleave"))) value = txth->interleave; else if ((n = is_string_field(val,"interleave_last"))) value = txth->interleave_last; else if ((n = is_string_field(val,"channels"))) value = txth->channels; else if ((n = is_string_field(val,"sample_rate"))) value = txth->sample_rate; else if ((n = is_string_field(val,"start_offset"))) value = txth->start_offset; else if ((n = is_string_field(val,"data_size"))) value = txth->data_size; else if ((n = is_string_field(val,"num_samples"))) value = txth->num_samples; else if ((n = is_string_field(val,"loop_start_sample"))) value = txth->loop_start_sample; else if ((n = is_string_field(val,"loop_start"))) value = txth->loop_start_sample; else if ((n = is_string_field(val,"loop_end_sample"))) value = txth->loop_end_sample; else if ((n = is_string_field(val,"loop_end"))) value = txth->loop_end_sample; else if ((n = is_string_field(val,"subsong_count"))) value = txth->subsong_count; else if ((n = is_string_field(val,"subsong_spacing"))) value = txth->subsong_spacing; else if ((n = is_string_field(val,"subsong_offset"))) value = txth->subsong_spacing; else if ((n = is_string_field(val,"subfile_offset"))) value = txth->subfile_offset; else if ((n = is_string_field(val,"subfile_size"))) value = txth->subfile_size; else if ((n = is_string_field(val,"base_offset"))) value = txth->base_offset; //todo whatever, improve else if ((n = is_string_field(val,"name_value"))) value = txth->name_values[0]; else if ((n = is_string_field(val,"name_value1"))) value = txth->name_values[0]; else if ((n = is_string_field(val,"name_value2"))) value = txth->name_values[1]; else if ((n = is_string_field(val,"name_value3"))) value = txth->name_values[2]; else if ((n = is_string_field(val,"name_value4"))) value = txth->name_values[3]; else if ((n = is_string_field(val,"name_value5"))) value = txth->name_values[4]; else if ((n = is_string_field(val,"name_value6"))) value = txth->name_values[5]; else if ((n = is_string_field(val,"name_value7"))) value = txth->name_values[6]; else if ((n = is_string_field(val,"name_value8"))) value = txth->name_values[7]; else if ((n = is_string_field(val,"name_value9"))) value = txth->name_values[8]; else if ((n = is_string_field(val,"name_value10"))) value = txth->name_values[9]; else if ((n = is_string_field(val,"name_value11"))) value = txth->name_values[10]; else if ((n = is_string_field(val,"name_value12"))) value = txth->name_values[11]; else if ((n = is_string_field(val,"name_value13"))) value = txth->name_values[12]; else if ((n = is_string_field(val,"name_value14"))) value = txth->name_values[13]; else if ((n = is_string_field(val,"name_value15"))) value = txth->name_values[14]; else if ((n = is_string_field(val,"name_value16"))) value = txth->name_values[15]; else goto fail; value_read = 1; } /* apply simple left-to-right math though, for now "(" ")" are counted and validated * (could use good ol' shunting-yard algo but whatevs) */ if (value_read) { //;VGM_ASSERT(op != ' ', "MIX: %i %c %i\n", result, op, value); switch(op) { case '+': value = result + value; break; case '-': value = result - value; break; case '*': value = result * value; break; case '/': if (value == 0) goto fail; value = result / value; break; case '&': value = result & value; break; default: break; } op = ' '; /* consume */ result = value; } /* move to next field (if any) */ val += n; //;VGM_LOG("TXTH: val='%s', n=%i, brackets=%i, result=%i\n", val, n, brackets, result); } /* unbalanced brackets */ if (brackets > 0) goto fail; /* global operators, but only if current value wasn't set to 0 right before */ if (value_mul && txth->value_mul) result = result * value_mul; if (value_div && txth->value_div) result = result / value_div; if (value_add && txth->value_add) result = result + value_add; if (value_sub && txth->value_sub) result = result - value_sub; *out_value = result; //;VGM_LOG("TXTH: final result %u (0x%x)\n", result, result); return 1; fail: return 0; } static int get_bytes_to_samples(txth_header* txth, uint32_t bytes) { switch(txth->codec) { case MS_IMA: return ms_ima_bytes_to_samples(bytes, txth->interleave, txth->channels); case XBOX: return xbox_ima_bytes_to_samples(bytes, txth->channels); case NGC_DSP: return dsp_bytes_to_samples(bytes, txth->channels); case PSX: case PSX_bf: return ps_bytes_to_samples(bytes, txth->channels); case PCM16BE: case PCM16LE: return pcm_bytes_to_samples(bytes, txth->channels, 16); case PCM8: case PCM8_U_int: case PCM8_U: return pcm_bytes_to_samples(bytes, txth->channels, 8); case PCM4: case PCM4_U: case TGC: return pcm_bytes_to_samples(bytes, txth->channels, 4); case MSADPCM: return msadpcm_bytes_to_samples(bytes, txth->interleave, txth->channels); case ATRAC3: return atrac3_bytes_to_samples(bytes, txth->interleave); case ATRAC3PLUS: return atrac3plus_bytes_to_samples(bytes, txth->interleave); case AAC: return aac_get_samples(txth->sf_body, txth->start_offset, bytes); #ifdef VGM_USE_MPEG case MPEG: return mpeg_get_samples(txth->sf_body, txth->start_offset, bytes); #endif case AC3: return ac3_bytes_to_samples(bytes, txth->interleave, txth->channels); case ASF: return asf_bytes_to_samples(bytes, txth->channels); case EAXA: return ea_xa_bytes_to_samples(bytes, txth->channels); /* XMA bytes-to-samples is done at the end as the value meanings are a bit different */ case XMA1: case XMA2: return bytes; /* preserve */ case IMA: case DVI_IMA: return ima_bytes_to_samples(bytes, txth->channels); case AICA: return yamaha_bytes_to_samples(bytes, txth->channels); case PCFX: case OKI16: case OKI4S: return oki_bytes_to_samples(bytes, txth->channels); /* untested */ case SDX2: return bytes; case NGC_DTK: return bytes / 0x20 * 28; /* always stereo */ case APPLE_IMA4: if (!txth->interleave) return 0; return (bytes / txth->interleave) * (txth->interleave - 2) * 2; case FFMPEG: /* too complex, try after init */ default: return 0; } } static int get_padding_size(txth_header* txth, int discard_empty) { if (txth->data_size == 0 || txth->channels == 0) return 0; switch(txth->codec) { case PSX: return ps_find_padding(txth->sf_body, txth->start_offset, txth->data_size, txth->channels, txth->interleave, discard_empty); default: return 0; } }