decode.c (47353B)
1 /* flac - Command-line FLAC encoder/decoder 2 * Copyright (C) 2000,2001,2002,2003,2004,2005 Josh Coalson 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation; either version 2 7 * of the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 */ 18 19 #ifdef HAVE_CONFIG_H 20 #include <config.h> 21 #endif 22 23 #if defined _WIN32 && !defined __CYGWIN__ 24 /* where MSVC puts unlink() */ 25 # include <io.h> 26 #else 27 # include <unistd.h> 28 #endif 29 #include <errno.h> 30 #include <math.h> /* for floor() */ 31 #include <stdio.h> /* for FILE et al. */ 32 #include <string.h> /* for strcmp() */ 33 #include "FLAC/all.h" 34 #include "share/grabbag.h" 35 #include "share/replaygain_synthesis.h" 36 #include "decode.h" 37 38 #ifdef FLAC__HAS_OGG 39 #include "OggFLAC/file_decoder.h" 40 #endif 41 42 typedef struct { 43 #ifdef FLAC__HAS_OGG 44 FLAC__bool is_ogg; 45 #endif 46 47 FLAC__bool is_aiff_out; 48 FLAC__bool is_wave_out; 49 FLAC__bool continue_through_decode_errors; 50 51 struct { 52 replaygain_synthesis_spec_t spec; 53 FLAC__bool apply; /* 'spec.apply' is just a request; this 'apply' means we actually parsed the RG tags and are ready to go */ 54 double scale; 55 DitherContext dither_context; 56 } replaygain; 57 58 FLAC__bool test_only; 59 FLAC__bool analysis_mode; 60 analysis_options aopts; 61 utils__SkipUntilSpecification *skip_specification; 62 utils__SkipUntilSpecification *until_specification; /* a canonicalized value of 0 mean end-of-stream (i.e. --until=-0) */ 63 utils__CueSpecification *cue_specification; 64 65 const char *inbasefilename; 66 const char *outfilename; 67 68 FLAC__uint64 samples_processed; 69 unsigned frame_counter; 70 FLAC__bool abort_flag; 71 FLAC__bool aborting_due_to_until; /* true if we intentionally abort decoding prematurely because we hit the --until point */ 72 73 struct { 74 FLAC__bool needs_fixup; 75 unsigned riff_offset; /* or FORM offset for AIFF */ 76 unsigned data_offset; /* or SSND offset for AIFF */ 77 unsigned frames_offset; /* AIFF only */ 78 } wave_chunk_size_fixup; 79 80 FLAC__bool is_big_endian; 81 FLAC__bool is_unsigned_samples; 82 FLAC__uint64 total_samples; 83 unsigned bps; 84 unsigned channels; 85 unsigned sample_rate; 86 87 union { 88 union { 89 FLAC__FileDecoder *file; 90 } flac; 91 #ifdef FLAC__HAS_OGG 92 union { 93 OggFLAC__FileDecoder *file; 94 } ogg; 95 #endif 96 } decoder; 97 98 FILE *fout; 99 } DecoderSession; 100 101 102 static FLAC__bool is_big_endian_host_; 103 104 105 /* 106 * local routines 107 */ 108 static FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, FLAC__bool continue_through_decode_errors, replaygain_synthesis_spec_t replaygain_synthesis_spec, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, utils__CueSpecification *cue_specification, const char *infilename, const char *outfilename); 109 static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred); 110 static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, decode_options_t decode_options, const char *infilename); 111 static FLAC__bool DecoderSession_process(DecoderSession *d); 112 static int DecoderSession_finish_ok(DecoderSession *d); 113 static int DecoderSession_finish_error(DecoderSession *d); 114 static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input); 115 static FLAC__bool write_necessary_headers(DecoderSession *decoder_session); 116 static FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val); 117 static FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val); 118 static FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val); 119 static FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val); 120 static FLAC__bool write_sane_extended(FILE *f, unsigned val); 121 static FLAC__bool fixup_wave_chunk_size(const char *outfilename, FLAC__bool is_wave_out, unsigned riff_offset, unsigned data_offset, unsigned frames_offset, FLAC__uint32 total_samples, unsigned channels, unsigned bps); 122 /* 123 * We use 'void *' so that we can use the same callbacks for the 124 * FLAC__StreamDecoder and FLAC__FileDecoder. The 'decoder' argument is 125 * actually never used in the callbacks. 126 */ 127 static FLAC__StreamDecoderWriteStatus write_callback(const void *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data); 128 static void metadata_callback(const void *decoder, const FLAC__StreamMetadata *metadata, void *client_data); 129 static void error_callback(const void *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data); 130 static void print_error_with_state(const DecoderSession *d, const char *message); 131 static void print_stats(const DecoderSession *decoder_session); 132 133 134 /* 135 * public routines 136 */ 137 int flac__decode_aiff(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, wav_decode_options_t options) 138 { 139 DecoderSession decoder_session; 140 141 if(! 142 DecoderSession_construct( 143 &decoder_session, 144 #ifdef FLAC__HAS_OGG 145 options.common.is_ogg, 146 #else 147 /*is_ogg=*/false, 148 #endif 149 /*is_aiff_out=*/true, 150 /*is_wave_out=*/false, 151 options.common.continue_through_decode_errors, 152 options.common.replaygain_synthesis_spec, 153 analysis_mode, 154 aopts, 155 &options.common.skip_specification, 156 &options.common.until_specification, 157 options.common.has_cue_specification? &options.common.cue_specification : 0, 158 infilename, 159 outfilename 160 ) 161 ) 162 return 1; 163 164 if(!DecoderSession_init_decoder(&decoder_session, options.common, infilename)) 165 return DecoderSession_finish_error(&decoder_session); 166 167 if(!DecoderSession_process(&decoder_session)) 168 return DecoderSession_finish_error(&decoder_session); 169 170 return DecoderSession_finish_ok(&decoder_session); 171 } 172 173 int flac__decode_wav(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, wav_decode_options_t options) 174 { 175 DecoderSession decoder_session; 176 177 if(! 178 DecoderSession_construct( 179 &decoder_session, 180 #ifdef FLAC__HAS_OGG 181 options.common.is_ogg, 182 #else 183 /*is_ogg=*/false, 184 #endif 185 /*is_aiff_out=*/false, 186 /*is_wave_out=*/true, 187 options.common.continue_through_decode_errors, 188 options.common.replaygain_synthesis_spec, 189 analysis_mode, 190 aopts, 191 &options.common.skip_specification, 192 &options.common.until_specification, 193 options.common.has_cue_specification? &options.common.cue_specification : 0, 194 infilename, 195 outfilename 196 ) 197 ) 198 return 1; 199 200 if(!DecoderSession_init_decoder(&decoder_session, options.common, infilename)) 201 return DecoderSession_finish_error(&decoder_session); 202 203 if(!DecoderSession_process(&decoder_session)) 204 return DecoderSession_finish_error(&decoder_session); 205 206 return DecoderSession_finish_ok(&decoder_session); 207 } 208 209 int flac__decode_raw(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, raw_decode_options_t options) 210 { 211 DecoderSession decoder_session; 212 213 decoder_session.is_big_endian = options.is_big_endian; 214 decoder_session.is_unsigned_samples = options.is_unsigned_samples; 215 216 if(! 217 DecoderSession_construct( 218 &decoder_session, 219 #ifdef FLAC__HAS_OGG 220 options.common.is_ogg, 221 #else 222 /*is_ogg=*/false, 223 #endif 224 /*is_aiff_out=*/false, 225 /*is_wave_out=*/false, 226 options.common.continue_through_decode_errors, 227 options.common.replaygain_synthesis_spec, 228 analysis_mode, 229 aopts, 230 &options.common.skip_specification, 231 &options.common.until_specification, 232 options.common.has_cue_specification? &options.common.cue_specification : 0, 233 infilename, 234 outfilename 235 ) 236 ) 237 return 1; 238 239 if(!DecoderSession_init_decoder(&decoder_session, options.common, infilename)) 240 return DecoderSession_finish_error(&decoder_session); 241 242 if(!DecoderSession_process(&decoder_session)) 243 return DecoderSession_finish_error(&decoder_session); 244 245 return DecoderSession_finish_ok(&decoder_session); 246 } 247 248 FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, FLAC__bool continue_through_decode_errors, replaygain_synthesis_spec_t replaygain_synthesis_spec, FLAC__bool analysis_mode, analysis_options aopts, utils__SkipUntilSpecification *skip_specification, utils__SkipUntilSpecification *until_specification, utils__CueSpecification *cue_specification, const char *infilename, const char *outfilename) 249 { 250 #ifdef FLAC__HAS_OGG 251 d->is_ogg = is_ogg; 252 #else 253 (void)is_ogg; 254 #endif 255 256 d->is_aiff_out = is_aiff_out; 257 d->is_wave_out = is_wave_out; 258 d->continue_through_decode_errors = continue_through_decode_errors; 259 d->replaygain.spec = replaygain_synthesis_spec; 260 d->replaygain.apply = false; 261 d->replaygain.scale = 0.0; 262 /* d->replaygain.dither_context gets initialized later once we know the sample resolution */ 263 d->test_only = (0 == outfilename); 264 d->analysis_mode = analysis_mode; 265 d->aopts = aopts; 266 d->skip_specification = skip_specification; 267 d->until_specification = until_specification; 268 d->cue_specification = cue_specification; 269 270 d->inbasefilename = grabbag__file_get_basename(infilename); 271 d->outfilename = outfilename; 272 273 d->samples_processed = 0; 274 d->frame_counter = 0; 275 d->abort_flag = false; 276 d->aborting_due_to_until = false; 277 278 d->wave_chunk_size_fixup.needs_fixup = false; 279 280 d->decoder.flac.file = 0; 281 #ifdef FLAC__HAS_OGG 282 d->decoder.ogg.file = 0; 283 #endif 284 285 d->fout = 0; /* initialized with an open file later if necessary */ 286 287 FLAC__ASSERT(!(d->test_only && d->analysis_mode)); 288 289 if(!d->test_only) { 290 if(0 == strcmp(outfilename, "-")) { 291 d->fout = grabbag__file_get_binary_stdout(); 292 } 293 else { 294 if(0 == (d->fout = fopen(outfilename, "wb"))) { 295 flac__utils_printf(stderr, 1, "%s: ERROR: can't open output file %s\n", d->inbasefilename, outfilename); 296 DecoderSession_destroy(d, /*error_occurred=*/true); 297 return false; 298 } 299 } 300 } 301 302 if(analysis_mode) 303 flac__analyze_init(aopts); 304 305 return true; 306 } 307 308 void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred) 309 { 310 if(0 != d->fout && d->fout != stdout) { 311 fclose(d->fout); 312 if(error_occurred) 313 unlink(d->outfilename); 314 } 315 } 316 317 FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, decode_options_t decode_options, const char *infilename) 318 { 319 FLAC__uint32 test = 1; 320 321 is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true; 322 323 #ifdef FLAC__HAS_OGG 324 if(decoder_session->is_ogg) { 325 decoder_session->decoder.ogg.file = OggFLAC__file_decoder_new(); 326 327 if(0 == decoder_session->decoder.ogg.file) { 328 flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename); 329 return false; 330 } 331 332 OggFLAC__file_decoder_set_md5_checking(decoder_session->decoder.ogg.file, true); 333 OggFLAC__file_decoder_set_filename(decoder_session->decoder.ogg.file, infilename); 334 if(!decode_options.use_first_serial_number) 335 OggFLAC__file_decoder_set_serial_number(decoder_session->decoder.ogg.file, decode_options.serial_number); 336 if (0 != decoder_session->cue_specification) 337 OggFLAC__file_decoder_set_metadata_respond(decoder_session->decoder.ogg.file, FLAC__METADATA_TYPE_CUESHEET); 338 if (decoder_session->replaygain.spec.apply) 339 OggFLAC__file_decoder_set_metadata_respond(decoder_session->decoder.ogg.file, FLAC__METADATA_TYPE_VORBIS_COMMENT); 340 341 /* 342 * The three ugly casts here are to 'downcast' the 'void *' argument of 343 * the callback down to 'OggFLAC__FileDecoder *'. In C++ this would be 344 * unnecessary but here the cast makes the C compiler happy. 345 */ 346 OggFLAC__file_decoder_set_write_callback(decoder_session->decoder.ogg.file, (FLAC__StreamDecoderWriteStatus (*)(const OggFLAC__FileDecoder *, const FLAC__Frame *, const FLAC__int32 * const [], void *))write_callback); 347 OggFLAC__file_decoder_set_metadata_callback(decoder_session->decoder.ogg.file, (void (*)(const OggFLAC__FileDecoder *, const FLAC__StreamMetadata *, void *))metadata_callback); 348 OggFLAC__file_decoder_set_error_callback(decoder_session->decoder.ogg.file, (void (*)(const OggFLAC__FileDecoder *, FLAC__StreamDecoderErrorStatus, void *))error_callback); 349 OggFLAC__file_decoder_set_client_data(decoder_session->decoder.ogg.file, decoder_session); 350 351 if(OggFLAC__file_decoder_init(decoder_session->decoder.ogg.file) != OggFLAC__FILE_DECODER_OK) { 352 print_error_with_state(decoder_session, "ERROR initializing decoder"); 353 return false; 354 } 355 } 356 else 357 #else 358 (void)decode_options; 359 #endif 360 { 361 decoder_session->decoder.flac.file = FLAC__file_decoder_new(); 362 363 if(0 == decoder_session->decoder.flac.file) { 364 flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename); 365 return false; 366 } 367 368 FLAC__file_decoder_set_md5_checking(decoder_session->decoder.flac.file, true); 369 FLAC__file_decoder_set_filename(decoder_session->decoder.flac.file, infilename); 370 if (0 != decoder_session->cue_specification) 371 FLAC__file_decoder_set_metadata_respond(decoder_session->decoder.flac.file, FLAC__METADATA_TYPE_CUESHEET); 372 if (decoder_session->replaygain.spec.apply) 373 FLAC__file_decoder_set_metadata_respond(decoder_session->decoder.flac.file, FLAC__METADATA_TYPE_VORBIS_COMMENT); 374 /* 375 * The three ugly casts here are to 'downcast' the 'void *' argument of 376 * the callback down to 'FLAC__FileDecoder *'. 377 */ 378 FLAC__file_decoder_set_write_callback(decoder_session->decoder.flac.file, (FLAC__StreamDecoderWriteStatus (*)(const FLAC__FileDecoder *, const FLAC__Frame *, const FLAC__int32 * const [], void *))write_callback); 379 FLAC__file_decoder_set_metadata_callback(decoder_session->decoder.flac.file, (void (*)(const FLAC__FileDecoder *, const FLAC__StreamMetadata *, void *))metadata_callback); 380 FLAC__file_decoder_set_error_callback(decoder_session->decoder.flac.file, (void (*)(const FLAC__FileDecoder *, FLAC__StreamDecoderErrorStatus, void *))error_callback); 381 FLAC__file_decoder_set_client_data(decoder_session->decoder.flac.file, decoder_session); 382 383 if(FLAC__file_decoder_init(decoder_session->decoder.flac.file) != FLAC__FILE_DECODER_OK) { 384 print_error_with_state(decoder_session, "ERROR initializing decoder"); 385 return false; 386 } 387 } 388 389 return true; 390 } 391 392 FLAC__bool DecoderSession_process(DecoderSession *d) 393 { 394 #ifdef FLAC__HAS_OGG 395 if(d->is_ogg) { 396 if(!OggFLAC__file_decoder_process_until_end_of_metadata(d->decoder.ogg.file)) { 397 flac__utils_printf(stderr, 2, "\n"); 398 print_error_with_state(d, "ERROR while decoding metadata"); 399 return false; 400 } 401 if(OggFLAC__file_decoder_get_state(d->decoder.ogg.file) != OggFLAC__FILE_DECODER_OK && OggFLAC__file_decoder_get_state(d->decoder.ogg.file) != OggFLAC__FILE_DECODER_END_OF_FILE) { 402 flac__utils_printf(stderr, 2, "\n"); 403 print_error_with_state(d, "ERROR during metadata decoding"); 404 return false; 405 } 406 } 407 else 408 #endif 409 { 410 if(!FLAC__file_decoder_process_until_end_of_metadata(d->decoder.flac.file)) { 411 flac__utils_printf(stderr, 2, "\n"); 412 print_error_with_state(d, "ERROR while decoding metadata"); 413 return false; 414 } 415 if(FLAC__file_decoder_get_state(d->decoder.flac.file) != FLAC__FILE_DECODER_OK && FLAC__file_decoder_get_state(d->decoder.flac.file) != FLAC__FILE_DECODER_END_OF_FILE) { 416 flac__utils_printf(stderr, 2, "\n"); 417 print_error_with_state(d, "ERROR during metadata decoding"); 418 return false; 419 } 420 } 421 if(d->abort_flag) 422 return false; 423 424 /* write the WAVE/AIFF headers if necessary */ 425 if(!write_necessary_headers(d)) { 426 d->abort_flag = true; 427 return false; 428 } 429 430 if(d->skip_specification->value.samples > 0) { 431 const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples; 432 433 #ifdef FLAC__HAS_OGG 434 if(d->is_ogg) { 435 if(!OggFLAC__file_decoder_seek_absolute(d->decoder.ogg.file, skip)) { 436 print_error_with_state(d, "ERROR seeking while skipping bytes"); 437 return false; 438 } 439 if(!OggFLAC__file_decoder_process_until_end_of_file(d->decoder.ogg.file) && !d->aborting_due_to_until) { 440 flac__utils_printf(stderr, 2, "\n"); 441 print_error_with_state(d, "ERROR while decoding frames"); 442 return false; 443 } 444 if(OggFLAC__file_decoder_get_state(d->decoder.ogg.file) != OggFLAC__FILE_DECODER_OK && OggFLAC__file_decoder_get_state(d->decoder.ogg.file) != OggFLAC__FILE_DECODER_END_OF_FILE && !d->aborting_due_to_until) { 445 flac__utils_printf(stderr, 2, "\n"); 446 print_error_with_state(d, "ERROR during decoding"); 447 return false; 448 } 449 } 450 else 451 #endif 452 { 453 if(!FLAC__file_decoder_seek_absolute(d->decoder.flac.file, skip)) { 454 print_error_with_state(d, "ERROR seeking while skipping bytes"); 455 return false; 456 } 457 if(!FLAC__file_decoder_process_until_end_of_file(d->decoder.flac.file) && !d->aborting_due_to_until) { 458 flac__utils_printf(stderr, 2, "\n"); 459 print_error_with_state(d, "ERROR while decoding frames"); 460 return false; 461 } 462 if(FLAC__file_decoder_get_state(d->decoder.flac.file) != FLAC__FILE_DECODER_OK && FLAC__file_decoder_get_state(d->decoder.flac.file) != FLAC__FILE_DECODER_END_OF_FILE && !d->aborting_due_to_until) { 463 flac__utils_printf(stderr, 2, "\n"); 464 print_error_with_state(d, "ERROR during decoding"); 465 return false; 466 } 467 } 468 } 469 else { 470 #ifdef FLAC__HAS_OGG 471 if(d->is_ogg) { 472 if(!OggFLAC__file_decoder_process_until_end_of_file(d->decoder.ogg.file) && !d->aborting_due_to_until) { 473 flac__utils_printf(stderr, 2, "\n"); 474 print_error_with_state(d, "ERROR while decoding data"); 475 return false; 476 } 477 if(OggFLAC__file_decoder_get_state(d->decoder.ogg.file) != OggFLAC__FILE_DECODER_OK && OggFLAC__file_decoder_get_state(d->decoder.ogg.file) != OggFLAC__FILE_DECODER_END_OF_FILE && !d->aborting_due_to_until) { 478 flac__utils_printf(stderr, 2, "\n"); 479 print_error_with_state(d, "ERROR during decoding"); 480 return false; 481 } 482 } 483 else 484 #endif 485 { 486 if(!FLAC__file_decoder_process_until_end_of_file(d->decoder.flac.file) && !d->aborting_due_to_until) { 487 flac__utils_printf(stderr, 2, "\n"); 488 print_error_with_state(d, "ERROR while decoding data"); 489 return false; 490 } 491 if(FLAC__file_decoder_get_state(d->decoder.flac.file) != FLAC__FILE_DECODER_OK && FLAC__file_decoder_get_state(d->decoder.flac.file) != FLAC__FILE_DECODER_END_OF_FILE && !d->aborting_due_to_until) { 492 flac__utils_printf(stderr, 2, "\n"); 493 print_error_with_state(d, "ERROR during decoding"); 494 return false; 495 } 496 } 497 } 498 499 if((d->is_wave_out || d->is_aiff_out) && ((d->total_samples * d->channels * ((d->bps+7)/8)) & 1)) { 500 if(flac__utils_fwrite("\000", 1, 1, d->fout) != 1) { 501 print_error_with_state(d, d->is_wave_out? 502 "ERROR writing pad byte to WAVE data chunk" : 503 "ERROR writing pad byte to AIFF SSND chunk" 504 ); 505 return false; 506 } 507 } 508 509 return true; 510 } 511 512 int DecoderSession_finish_ok(DecoderSession *d) 513 { 514 FLAC__bool md5_failure = false; 515 516 #ifdef FLAC__HAS_OGG 517 if(d->is_ogg) { 518 if(d->decoder.ogg.file) { 519 md5_failure = !OggFLAC__file_decoder_finish(d->decoder.ogg.file) && !d->aborting_due_to_until; 520 print_stats(d); 521 OggFLAC__file_decoder_delete(d->decoder.ogg.file); 522 } 523 } 524 else 525 #endif 526 { 527 if(d->decoder.flac.file) { 528 md5_failure = !FLAC__file_decoder_finish(d->decoder.flac.file) && !d->aborting_due_to_until; 529 print_stats(d); 530 FLAC__file_decoder_delete(d->decoder.flac.file); 531 } 532 } 533 if(d->analysis_mode) 534 flac__analyze_finish(d->aopts); 535 if(md5_failure) { 536 flac__utils_printf(stderr, 1, "\r%s: WARNING, MD5 signature mismatch\n", d->inbasefilename); 537 } 538 else { 539 flac__utils_printf(stderr, 2, "\r%s: %s \n", d->inbasefilename, d->test_only? "ok ":d->analysis_mode?"done ":"done"); 540 } 541 DecoderSession_destroy(d, /*error_occurred=*/false); 542 if((d->is_wave_out || d->is_aiff_out) && d->wave_chunk_size_fixup.needs_fixup) 543 if(!fixup_wave_chunk_size(d->outfilename, d->is_wave_out, d->wave_chunk_size_fixup.riff_offset, d->wave_chunk_size_fixup.data_offset, d->wave_chunk_size_fixup.frames_offset, (FLAC__uint32)d->samples_processed, d->channels, d->bps)) 544 return 1; 545 return 0; 546 } 547 548 int DecoderSession_finish_error(DecoderSession *d) 549 { 550 #ifdef FLAC__HAS_OGG 551 if(d->is_ogg) { 552 if(d->decoder.ogg.file) { 553 OggFLAC__file_decoder_finish(d->decoder.ogg.file); 554 OggFLAC__file_decoder_delete(d->decoder.ogg.file); 555 } 556 } 557 else 558 #endif 559 { 560 if(d->decoder.flac.file) { 561 FLAC__file_decoder_finish(d->decoder.flac.file); 562 FLAC__file_decoder_delete(d->decoder.flac.file); 563 } 564 } 565 if(d->analysis_mode) 566 flac__analyze_finish(d->aopts); 567 DecoderSession_destroy(d, /*error_occurred=*/true); 568 return 1; 569 } 570 571 FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input) 572 { 573 /* convert from mm:ss.sss to sample number if necessary */ 574 flac__utils_canonicalize_skip_until_specification(spec, sample_rate); 575 576 /* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */ 577 if(spec->is_relative && spec->value.samples == 0) { 578 spec->is_relative = false; 579 return true; 580 } 581 582 /* in any other case the total samples in the input must be known */ 583 if(total_samples_in_input == 0) { 584 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when FLAC metadata has total sample count of 0\n", inbasefilename); 585 return false; 586 } 587 588 FLAC__ASSERT(spec->value_is_samples); 589 590 /* convert relative specifications to absolute */ 591 if(spec->is_relative) { 592 if(spec->value.samples <= 0) 593 spec->value.samples += (FLAC__int64)total_samples_in_input; 594 else 595 spec->value.samples += skip; 596 spec->is_relative = false; 597 } 598 599 /* error check */ 600 if(spec->value.samples < 0) { 601 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename); 602 return false; 603 } 604 if((FLAC__uint64)spec->value.samples <= skip) { 605 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename); 606 return false; 607 } 608 if((FLAC__uint64)spec->value.samples > total_samples_in_input) { 609 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename); 610 return false; 611 } 612 613 return true; 614 } 615 616 FLAC__bool write_necessary_headers(DecoderSession *decoder_session) 617 { 618 /* write the WAVE/AIFF headers if necessary */ 619 if(!decoder_session->analysis_mode && !decoder_session->test_only && (decoder_session->is_wave_out || decoder_session->is_aiff_out)) { 620 const char *fmt_desc = decoder_session->is_wave_out? "WAVE" : "AIFF"; 621 FLAC__uint64 data_size = decoder_session->total_samples * decoder_session->channels * ((decoder_session->bps+7)/8); 622 const FLAC__uint32 aligned_data_size = (FLAC__uint32)((data_size+1) & (~1U)); /* we'll check for overflow later */ 623 if(decoder_session->total_samples == 0) { 624 if(decoder_session->fout == stdout) { 625 flac__utils_printf(stderr, 1, "%s: WARNING, don't have accurate sample count available for %s header.\n", decoder_session->inbasefilename, fmt_desc); 626 flac__utils_printf(stderr, 1, " Generated %s file will have a data chunk size of 0. Try\n", fmt_desc); 627 flac__utils_printf(stderr, 1, " decoding directly to a file instead.\n"); 628 } 629 else { 630 decoder_session->wave_chunk_size_fixup.needs_fixup = true; 631 } 632 } 633 if(data_size >= 0xFFFFFFDC) { 634 flac__utils_printf(stderr, 1, "%s: ERROR: stream is too big to fit in a single %s file chunk\n", decoder_session->inbasefilename, fmt_desc); 635 return false; 636 } 637 if(decoder_session->is_wave_out) { 638 if(flac__utils_fwrite("RIFF", 1, 4, decoder_session->fout) != 4) 639 return false; 640 641 if(decoder_session->wave_chunk_size_fixup.needs_fixup) 642 decoder_session->wave_chunk_size_fixup.riff_offset = ftell(decoder_session->fout); 643 644 if(!write_little_endian_uint32(decoder_session->fout, aligned_data_size+36)) /* filesize-8 */ 645 return false; 646 647 if(flac__utils_fwrite("WAVEfmt ", 1, 8, decoder_session->fout) != 8) 648 return false; 649 650 if(flac__utils_fwrite("\020\000\000\000", 1, 4, decoder_session->fout) != 4) /* chunk size = 16 */ 651 return false; 652 653 if(flac__utils_fwrite("\001\000", 1, 2, decoder_session->fout) != 2) /* compression code == 1 */ 654 return false; 655 656 if(!write_little_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->channels))) 657 return false; 658 659 if(!write_little_endian_uint32(decoder_session->fout, decoder_session->sample_rate)) 660 return false; 661 662 if(!write_little_endian_uint32(decoder_session->fout, decoder_session->sample_rate * decoder_session->channels * ((decoder_session->bps+7) / 8))) /* @@@ or is it (sample_rate*channels*bps) / 8 ??? */ 663 return false; 664 665 if(!write_little_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->channels * ((decoder_session->bps+7) / 8)))) /* block align */ 666 return false; 667 668 if(!write_little_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->bps))) /* bits per sample */ 669 return false; 670 671 if(flac__utils_fwrite("data", 1, 4, decoder_session->fout) != 4) 672 return false; 673 674 if(decoder_session->wave_chunk_size_fixup.needs_fixup) 675 decoder_session->wave_chunk_size_fixup.data_offset = ftell(decoder_session->fout); 676 677 if(!write_little_endian_uint32(decoder_session->fout, (FLAC__uint32)data_size)) /* data size */ 678 return false; 679 } 680 else { 681 if(flac__utils_fwrite("FORM", 1, 4, decoder_session->fout) != 4) 682 return false; 683 684 if(decoder_session->wave_chunk_size_fixup.needs_fixup) 685 decoder_session->wave_chunk_size_fixup.riff_offset = ftell(decoder_session->fout); 686 687 if(!write_big_endian_uint32(decoder_session->fout, aligned_data_size+46)) /* filesize-8 */ 688 return false; 689 690 if(flac__utils_fwrite("AIFFCOMM", 1, 8, decoder_session->fout) != 8) 691 return false; 692 693 if(flac__utils_fwrite("\000\000\000\022", 1, 4, decoder_session->fout) != 4) /* chunk size = 18 */ 694 return false; 695 696 if(!write_big_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->channels))) 697 return false; 698 699 if(decoder_session->wave_chunk_size_fixup.needs_fixup) 700 decoder_session->wave_chunk_size_fixup.frames_offset = ftell(decoder_session->fout); 701 702 if(!write_big_endian_uint32(decoder_session->fout, (FLAC__uint32)decoder_session->total_samples)) 703 return false; 704 705 if(!write_big_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->bps))) 706 return false; 707 708 if(!write_sane_extended(decoder_session->fout, decoder_session->sample_rate)) 709 return false; 710 711 if(flac__utils_fwrite("SSND", 1, 4, decoder_session->fout) != 4) 712 return false; 713 714 if(decoder_session->wave_chunk_size_fixup.needs_fixup) 715 decoder_session->wave_chunk_size_fixup.data_offset = ftell(decoder_session->fout); 716 717 if(!write_big_endian_uint32(decoder_session->fout, (FLAC__uint32)data_size+8)) /* data size */ 718 return false; 719 720 if(!write_big_endian_uint32(decoder_session->fout, 0/*offset*/)) 721 return false; 722 723 if(!write_big_endian_uint32(decoder_session->fout, 0/*block_size*/)) 724 return false; 725 } 726 } 727 728 return true; 729 } 730 731 FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val) 732 { 733 FLAC__byte *b = (FLAC__byte*)(&val); 734 if(is_big_endian_host_) { 735 FLAC__byte tmp; 736 tmp = b[1]; b[1] = b[0]; b[0] = tmp; 737 } 738 return flac__utils_fwrite(b, 1, 2, f) == 2; 739 } 740 741 FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val) 742 { 743 FLAC__byte *b = (FLAC__byte*)(&val); 744 if(is_big_endian_host_) { 745 FLAC__byte tmp; 746 tmp = b[3]; b[3] = b[0]; b[0] = tmp; 747 tmp = b[2]; b[2] = b[1]; b[1] = tmp; 748 } 749 return flac__utils_fwrite(b, 1, 4, f) == 4; 750 } 751 752 FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val) 753 { 754 FLAC__byte *b = (FLAC__byte*)(&val); 755 if(!is_big_endian_host_) { 756 FLAC__byte tmp; 757 tmp = b[1]; b[1] = b[0]; b[0] = tmp; 758 } 759 return flac__utils_fwrite(b, 1, 2, f) == 2; 760 } 761 762 FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val) 763 { 764 FLAC__byte *b = (FLAC__byte*)(&val); 765 if(!is_big_endian_host_) { 766 FLAC__byte tmp; 767 tmp = b[3]; b[3] = b[0]; b[0] = tmp; 768 tmp = b[2]; b[2] = b[1]; b[1] = tmp; 769 } 770 return flac__utils_fwrite(b, 1, 4, f) == 4; 771 } 772 773 FLAC__bool write_sane_extended(FILE *f, unsigned val) 774 /* Write to 'f' a SANE extended representation of 'val'. Return false if 775 * the write succeeds; return true otherwise. 776 * 777 * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits 778 * of exponent, and 64 bits of significand (mantissa). Unlike most IEEE-754 779 * representations, it does not imply a 1 above the MSB of the significand. 780 * 781 * Preconditions: 782 * val!=0U 783 */ 784 { 785 unsigned int shift, exponent; 786 787 FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */ 788 789 for(shift= 0U; (val>>(31-shift))==0U; ++shift) 790 ; 791 val<<= shift; 792 exponent= 63U-(shift+32U); /* add 32 for unused second word */ 793 794 if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF))) 795 return false; 796 if(!write_big_endian_uint32(f, val)) 797 return false; 798 if(!write_big_endian_uint32(f, 0)) /* unused second word */ 799 return false; 800 801 return true; 802 } 803 804 FLAC__bool fixup_wave_chunk_size(const char *outfilename, FLAC__bool is_wave_out, unsigned riff_offset, unsigned data_offset, unsigned frames_offset, FLAC__uint32 total_samples, unsigned channels, unsigned bps) 805 { 806 const char *fmt_desc = (is_wave_out? "WAVE" : "AIFF"); 807 FLAC__bool (*write_it)(FILE *, FLAC__uint32) = (is_wave_out? write_little_endian_uint32 : write_big_endian_uint32); 808 FILE *f = fopen(outfilename, "r+b"); 809 FLAC__uint32 data_size, aligned_data_size; 810 811 if(0 == f) { 812 flac__utils_printf(stderr, 1, "ERROR, couldn't open file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 813 return false; 814 } 815 816 data_size = aligned_data_size = total_samples * channels * ((bps+7)/8); 817 if(aligned_data_size & 1) 818 aligned_data_size++; 819 820 if(fseek(f, riff_offset, SEEK_SET) < 0) { 821 flac__utils_printf(stderr, 1, "ERROR, couldn't seek in file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 822 fclose(f); 823 return false; 824 } 825 if(!write_it(f, aligned_data_size + (is_wave_out? 36 : 46))) { 826 flac__utils_printf(stderr, 1, "ERROR, couldn't write size in file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 827 fclose(f); 828 return false; 829 } 830 if(!is_wave_out) { 831 if(fseek(f, frames_offset, SEEK_SET) < 0) { 832 flac__utils_printf(stderr, 1, "ERROR, couldn't seek in file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 833 fclose(f); 834 return false; 835 } 836 if(!write_it(f, total_samples)) { 837 flac__utils_printf(stderr, 1, "ERROR, couldn't write size in file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 838 fclose(f); 839 return false; 840 } 841 } 842 if(fseek(f, data_offset, SEEK_SET) < 0) { 843 flac__utils_printf(stderr, 1, "ERROR, couldn't seek in file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 844 fclose(f); 845 return false; 846 } 847 if(!write_it(f, data_size + (is_wave_out? 0 : 8))) { 848 flac__utils_printf(stderr, 1, "ERROR, couldn't write size in file %s while fixing up %s chunk size\n", outfilename, fmt_desc); 849 fclose(f); 850 return false; 851 } 852 fclose(f); 853 return true; 854 } 855 856 FLAC__StreamDecoderWriteStatus write_callback(const void *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data) 857 { 858 DecoderSession *decoder_session = (DecoderSession*)client_data; 859 FILE *fout = decoder_session->fout; 860 const unsigned bps = frame->header.bits_per_sample, channels = frame->header.channels; 861 FLAC__bool is_big_endian = (decoder_session->is_aiff_out? true : (decoder_session->is_wave_out? false : decoder_session->is_big_endian)); 862 FLAC__bool is_unsigned_samples = (decoder_session->is_aiff_out? false : (decoder_session->is_wave_out? bps<=8 : decoder_session->is_unsigned_samples)); 863 unsigned wide_samples = frame->header.blocksize, wide_sample, sample, channel, byte; 864 static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)]; /* WATCHOUT: can be up to 2 megs */ 865 FLAC__uint8 *u8buffer = (FLAC__uint8 *)s8buffer; 866 FLAC__int16 *s16buffer = (FLAC__int16 *)s8buffer; 867 FLAC__uint16 *u16buffer = (FLAC__uint16 *)s8buffer; 868 FLAC__int32 *s32buffer = (FLAC__int32 *)s8buffer; 869 FLAC__uint32 *u32buffer = (FLAC__uint32 *)s8buffer; 870 size_t bytes_to_write = 0; 871 872 (void)decoder; 873 874 if(decoder_session->abort_flag) 875 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; 876 877 if(bps != decoder_session->bps) { 878 flac__utils_printf(stderr, 1, "%s: ERROR, bits-per-sample is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, bps, decoder_session->bps); 879 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; 880 } 881 if(channels != decoder_session->channels) { 882 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, channels, decoder_session->channels); 883 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; 884 } 885 if(frame->header.sample_rate != decoder_session->sample_rate) { 886 flac__utils_printf(stderr, 1, "%s: ERROR, sample rate is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, frame->header.sample_rate, decoder_session->sample_rate); 887 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; 888 } 889 890 /* 891 * limit the number of samples to accept based on --until 892 */ 893 FLAC__ASSERT(!decoder_session->skip_specification->is_relative); 894 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0); 895 FLAC__ASSERT(!decoder_session->until_specification->is_relative); 896 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0); 897 if(decoder_session->until_specification->value.samples > 0) { 898 const FLAC__uint64 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples; 899 const FLAC__uint64 until = (FLAC__uint64)decoder_session->until_specification->value.samples; 900 const FLAC__uint64 input_samples_passed = skip + decoder_session->samples_processed; 901 FLAC__ASSERT(until >= input_samples_passed); 902 if(input_samples_passed + wide_samples > until) 903 wide_samples = (unsigned)(until - input_samples_passed); 904 if (wide_samples == 0) { 905 decoder_session->abort_flag = true; 906 decoder_session->aborting_due_to_until = true; 907 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; 908 } 909 } 910 911 if(wide_samples > 0) { 912 decoder_session->samples_processed += wide_samples; 913 decoder_session->frame_counter++; 914 915 if(!(decoder_session->frame_counter & 0x3f)) 916 print_stats(decoder_session); 917 918 if(decoder_session->analysis_mode) { 919 flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->aopts, fout); 920 } 921 else if(!decoder_session->test_only) { 922 if (decoder_session->replaygain.apply) { 923 bytes_to_write = FLAC__replaygain_synthesis__apply_gain( 924 u8buffer, 925 !is_big_endian, 926 is_unsigned_samples, 927 buffer, 928 wide_samples, 929 channels, 930 bps, /* source_bps */ 931 bps, /* target_bps */ 932 decoder_session->replaygain.scale, 933 decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */ 934 decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */ 935 &decoder_session->replaygain.dither_context 936 ); 937 } 938 else if(bps == 8) { 939 if(is_unsigned_samples) { 940 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) 941 for(channel = 0; channel < channels; channel++, sample++) 942 u8buffer[sample] = (FLAC__uint8)(buffer[channel][wide_sample] + 0x80); 943 } 944 else { 945 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) 946 for(channel = 0; channel < channels; channel++, sample++) 947 s8buffer[sample] = (FLAC__int8)(buffer[channel][wide_sample]); 948 } 949 bytes_to_write = sample; 950 } 951 else if(bps == 16) { 952 if(is_unsigned_samples) { 953 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) 954 for(channel = 0; channel < channels; channel++, sample++) 955 u16buffer[sample] = (FLAC__uint16)(buffer[channel][wide_sample] + 0x8000); 956 } 957 else { 958 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) 959 for(channel = 0; channel < channels; channel++, sample++) 960 s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]); 961 } 962 if(is_big_endian != is_big_endian_host_) { 963 unsigned char tmp; 964 const unsigned bytes = sample * 2; 965 for(byte = 0; byte < bytes; byte += 2) { 966 tmp = u8buffer[byte]; 967 u8buffer[byte] = u8buffer[byte+1]; 968 u8buffer[byte+1] = tmp; 969 } 970 } 971 bytes_to_write = 2 * sample; 972 } 973 else if(bps == 24) { 974 if(is_unsigned_samples) { 975 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) 976 for(channel = 0; channel < channels; channel++, sample++) 977 u32buffer[sample] = buffer[channel][wide_sample] + 0x800000; 978 } 979 else { 980 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) 981 for(channel = 0; channel < channels; channel++, sample++) 982 s32buffer[sample] = buffer[channel][wide_sample]; 983 } 984 if(is_big_endian != is_big_endian_host_) { 985 unsigned char tmp; 986 const unsigned bytes = sample * 4; 987 for(byte = 0; byte < bytes; byte += 4) { 988 tmp = u8buffer[byte]; 989 u8buffer[byte] = u8buffer[byte+3]; 990 u8buffer[byte+3] = tmp; 991 tmp = u8buffer[byte+1]; 992 u8buffer[byte+1] = u8buffer[byte+2]; 993 u8buffer[byte+2] = tmp; 994 } 995 } 996 if(is_big_endian) { 997 unsigned lbyte; 998 const unsigned bytes = sample * 4; 999 for(lbyte = byte = 0; byte < bytes; ) { 1000 byte++; 1001 u8buffer[lbyte++] = u8buffer[byte++]; 1002 u8buffer[lbyte++] = u8buffer[byte++]; 1003 u8buffer[lbyte++] = u8buffer[byte++]; 1004 } 1005 } 1006 else { 1007 unsigned lbyte; 1008 const unsigned bytes = sample * 4; 1009 for(lbyte = byte = 0; byte < bytes; ) { 1010 u8buffer[lbyte++] = u8buffer[byte++]; 1011 u8buffer[lbyte++] = u8buffer[byte++]; 1012 u8buffer[lbyte++] = u8buffer[byte++]; 1013 byte++; 1014 } 1015 } 1016 bytes_to_write = 3 * sample; 1017 } 1018 else { 1019 FLAC__ASSERT(0); 1020 } 1021 } 1022 } 1023 if(bytes_to_write > 0) { 1024 if(flac__utils_fwrite(u8buffer, 1, bytes_to_write, fout) != bytes_to_write) { 1025 /* if a pipe closed when writing to stdout, we let it go without an error message */ 1026 if(errno == EPIPE && decoder_session->fout == stdout) 1027 decoder_session->aborting_due_to_until = true; 1028 decoder_session->abort_flag = true; 1029 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; 1030 } 1031 } 1032 return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; 1033 } 1034 1035 void metadata_callback(const void *decoder, const FLAC__StreamMetadata *metadata, void *client_data) 1036 { 1037 DecoderSession *decoder_session = (DecoderSession*)client_data; 1038 (void)decoder; 1039 if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) { 1040 FLAC__uint64 skip, until; 1041 decoder_session->bps = metadata->data.stream_info.bits_per_sample; 1042 decoder_session->channels = metadata->data.stream_info.channels; 1043 decoder_session->sample_rate = metadata->data.stream_info.sample_rate; 1044 1045 flac__utils_canonicalize_skip_until_specification(decoder_session->skip_specification, decoder_session->sample_rate); 1046 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0); 1047 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples; 1048 1049 /* remember, metadata->data.stream_info.total_samples can be 0, meaning 'unknown' */ 1050 if(metadata->data.stream_info.total_samples > 0 && skip >= metadata->data.stream_info.total_samples) { 1051 flac__utils_printf(stderr, 1, "%s: ERROR trying to --skip more samples than in stream\n", decoder_session->inbasefilename); 1052 decoder_session->abort_flag = true; 1053 return; 1054 } 1055 else if(metadata->data.stream_info.total_samples == 0 && skip > 0) { 1056 flac__utils_printf(stderr, 1, "%s: ERROR, can't --skip when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename); 1057 decoder_session->abort_flag = true; 1058 return; 1059 } 1060 FLAC__ASSERT(skip == 0 || 0 == decoder_session->cue_specification); 1061 decoder_session->total_samples = metadata->data.stream_info.total_samples - skip; 1062 1063 /* note that we use metadata->data.stream_info.total_samples instead of decoder_session->total_samples */ 1064 if(!canonicalize_until_specification(decoder_session->until_specification, decoder_session->inbasefilename, decoder_session->sample_rate, skip, metadata->data.stream_info.total_samples)) { 1065 decoder_session->abort_flag = true; 1066 return; 1067 } 1068 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0); 1069 until = (FLAC__uint64)decoder_session->until_specification->value.samples; 1070 1071 if(until > 0) { 1072 FLAC__ASSERT(decoder_session->total_samples != 0); 1073 FLAC__ASSERT(0 == decoder_session->cue_specification); 1074 decoder_session->total_samples -= (metadata->data.stream_info.total_samples - until); 1075 } 1076 1077 if(decoder_session->bps != 8 && decoder_session->bps != 16 && decoder_session->bps != 24) { 1078 flac__utils_printf(stderr, 1, "%s: ERROR: bits per sample is not 8/16/24\n", decoder_session->inbasefilename); 1079 decoder_session->abort_flag = true; 1080 return; 1081 } 1082 } 1083 else if(metadata->type == FLAC__METADATA_TYPE_CUESHEET) { 1084 /* remember, at this point, decoder_session->total_samples can be 0, meaning 'unknown' */ 1085 if(decoder_session->total_samples == 0) { 1086 flac__utils_printf(stderr, 1, "%s: ERROR can't use --cue when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename); 1087 decoder_session->abort_flag = true; 1088 return; 1089 } 1090 1091 flac__utils_canonicalize_cue_specification(decoder_session->cue_specification, &metadata->data.cue_sheet, decoder_session->total_samples, decoder_session->skip_specification, decoder_session->until_specification); 1092 1093 FLAC__ASSERT(!decoder_session->skip_specification->is_relative); 1094 FLAC__ASSERT(decoder_session->skip_specification->value_is_samples); 1095 1096 FLAC__ASSERT(!decoder_session->until_specification->is_relative); 1097 FLAC__ASSERT(decoder_session->until_specification->value_is_samples); 1098 1099 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0); 1100 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0); 1101 FLAC__ASSERT((FLAC__uint64)decoder_session->until_specification->value.samples <= decoder_session->total_samples); 1102 FLAC__ASSERT(decoder_session->skip_specification->value.samples <= decoder_session->until_specification->value.samples); 1103 1104 decoder_session->total_samples = decoder_session->until_specification->value.samples - decoder_session->skip_specification->value.samples; 1105 } 1106 else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) { 1107 if (decoder_session->replaygain.spec.apply) { 1108 double gain, peak; 1109 if (!(decoder_session->replaygain.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, &gain, &peak))) { 1110 flac__utils_printf(stderr, 1, "%s: WARNING: can't get %s ReplayGain tag\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track"); 1111 } 1112 else { 1113 const char *ls[] = { "no", "peak", "hard" }; 1114 const char *ns[] = { "no", "low", "medium", "high" }; 1115 decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK); 1116 FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32); 1117 FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping); 1118 flac__utils_printf(stderr, 1, "%s: INFO: applying %s ReplayGain (gain=%0.2fdB+preamp=%0.1fdB, %s noise shaping, %s limiting) to output\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track", gain, decoder_session->replaygain.spec.preamp, ns[decoder_session->replaygain.spec.noise_shaping], ls[decoder_session->replaygain.spec.limiter]); 1119 flac__utils_printf(stderr, 1, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename); 1120 } 1121 } 1122 } 1123 } 1124 1125 void error_callback(const void *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data) 1126 { 1127 DecoderSession *decoder_session = (DecoderSession*)client_data; 1128 (void)decoder; 1129 flac__utils_printf(stderr, 1, "%s: *** Got error code %d:%s\n", decoder_session->inbasefilename, status, FLAC__StreamDecoderErrorStatusString[status]); 1130 if(!decoder_session->continue_through_decode_errors) 1131 decoder_session->abort_flag = true; 1132 } 1133 1134 void print_error_with_state(const DecoderSession *d, const char *message) 1135 { 1136 const int ilen = strlen(d->inbasefilename) + 1; 1137 const char *state_string; 1138 1139 flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message); 1140 1141 #ifdef FLAC__HAS_OGG 1142 if(d->is_ogg) { 1143 state_string = OggFLAC__file_decoder_get_resolved_state_string(d->decoder.ogg.file); 1144 } 1145 else 1146 #endif 1147 { 1148 state_string = FLAC__file_decoder_get_resolved_state_string(d->decoder.flac.file); 1149 } 1150 1151 flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", state_string); 1152 1153 /* print out some more info for some errors: */ 1154 if (0 == strcmp(state_string, FLAC__StreamDecoderStateString[FLAC__STREAM_DECODER_UNPARSEABLE_STREAM])) { 1155 flac__utils_printf(stderr, 1, 1156 "\n" 1157 "The FLAC stream may have been created by a more advanced encoder. Try\n" 1158 " metaflac --show-vendor-tag %s\n" 1159 "If the version number is greater than %s, this decoder is probably\n" 1160 "not able to decode the file. If the version number is not, the file\n" 1161 "may be corrupted, or you may have found a bug. In this case please\n" 1162 "submit a bug report to\n" 1163 " http://sourceforge.net/bugs/?func=addbug&group_id=13478\n" 1164 "Make sure to include an email contact in the comment and/or use the\n" 1165 "\"Monitor\" feature to monitor the bug status.\n", 1166 d->inbasefilename, FLAC__VERSION_STRING 1167 ); 1168 } 1169 else if ( 1170 0 == strcmp(state_string, FLAC__FileDecoderStateString[FLAC__FILE_DECODER_ERROR_OPENING_FILE]) 1171 #ifdef FLAC__HAS_OGG 1172 || 0 == strcmp(state_string, OggFLAC__FileDecoderStateString[OggFLAC__FILE_DECODER_ERROR_OPENING_FILE]) 1173 #endif 1174 ) { 1175 flac__utils_printf(stderr, 1, 1176 "\n" 1177 "An error occurred opening the input file; it is likely that it does not exist\n" 1178 "or is not readable.\n" 1179 ); 1180 } 1181 } 1182 1183 void print_stats(const DecoderSession *decoder_session) 1184 { 1185 if(flac__utils_verbosity_ >= 2) { 1186 #if defined _MSC_VER || defined __MINGW32__ 1187 /* with MSVC you have to spoon feed it the casting */ 1188 const double progress = (double)(FLAC__int64)decoder_session->samples_processed / (double)(FLAC__int64)decoder_session->total_samples * 100.0; 1189 #else 1190 const double progress = (double)decoder_session->samples_processed / (double)decoder_session->total_samples * 100.0; 1191 #endif 1192 if(decoder_session->total_samples > 0) { 1193 fprintf(stderr, "\r%s: %s%u%% complete", 1194 decoder_session->inbasefilename, 1195 decoder_session->test_only? "testing, " : decoder_session->analysis_mode? "analyzing, " : "", 1196 (unsigned)floor(progress + 0.5) 1197 ); 1198 } 1199 else { 1200 fprintf(stderr, "\r%s: %s %u samples", 1201 decoder_session->inbasefilename, 1202 decoder_session->test_only? "tested" : decoder_session->analysis_mode? "analyzed" : "wrote", 1203 (unsigned)decoder_session->samples_processed 1204 ); 1205 } 1206 } 1207 }