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decode.c
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上传用户：wstnjxml
上传日期：2014-04-03
资源大小：7248k
文件大小：46k
源码类别：

Windows CE

开发平台：

C/C++

decode.c：源码内容
  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.  */
  19. #ifdef HAVE_CONFIG_H
  20. #include <config.h>
  21. #endif
  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"
  38. #ifdef FLAC__HAS_OGG
  39. #include "OggFLAC/file_decoder.h"
  40. #endif
  42. typedef struct {
  43. #ifdef FLAC__HAS_OGG
  44. FLAC__bool is_ogg;
  45. #endif
  47. FLAC__bool is_aiff_out;
  48. FLAC__bool is_wave_out;
  49. FLAC__bool continue_through_decode_errors;
  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;
  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;
  65. const char *inbasefilename;
  66. const char *outfilename;
  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 */
  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;
  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;
  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;
  98. FILE *fout;
  99. } DecoderSession;
  102. static FLAC__bool is_big_endian_host_;
  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);
  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;
  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;
  164. if(!DecoderSession_init_decoder(&decoder_session, options.common, infilename))
  165. return DecoderSession_finish_error(&decoder_session);
  167. if(!DecoderSession_process(&decoder_session))
  168. return DecoderSession_finish_error(&decoder_session);
  170. return DecoderSession_finish_ok(&decoder_session);
  171. }
  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;
  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;
  200. if(!DecoderSession_init_decoder(&decoder_session, options.common, infilename))
  201. return DecoderSession_finish_error(&decoder_session);
  203. if(!DecoderSession_process(&decoder_session))
  204. return DecoderSession_finish_error(&decoder_session);
  206. return DecoderSession_finish_ok(&decoder_session);
  207. }
  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;
  213. decoder_session.is_big_endian = options.is_big_endian;
  214. decoder_session.is_unsigned_samples = options.is_unsigned_samples;
  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;
  239. if(!DecoderSession_init_decoder(&decoder_session, options.common, infilename))
  240. return DecoderSession_finish_error(&decoder_session);
  242. if(!DecoderSession_process(&decoder_session))
  243. return DecoderSession_finish_error(&decoder_session);
  245. return DecoderSession_finish_ok(&decoder_session);
  246. }
  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
  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;
  270. d->inbasefilename = grabbag__file_get_basename(infilename);
  271. d->outfilename = outfilename;
  273. d->samples_processed = 0;
  274. d->frame_counter = 0;
  275. d->abort_flag = false;
  276. d->aborting_due_to_until = false;
  278. d->wave_chunk_size_fixup.needs_fixup = false;
  280. d->decoder.flac.file = 0;
  281. #ifdef FLAC__HAS_OGG
  282. d->decoder.ogg.file = 0;
  283. #endif
  285. d->fout = 0; /* initialized with an open file later if necessary */
  287. FLAC__ASSERT(!(d->test_only && d->analysis_mode));
  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 %sn", d->inbasefilename, outfilename);
  296. DecoderSession_destroy(d, /*error_occurred=*/true);
  297. return false;
  298. }
  299. }
  300. }
  302. if(analysis_mode)
  303. flac__analyze_init(aopts);
  305. return true;
  306. }
  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. }
  317. FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, decode_options_t decode_options, const char *infilename)
  318. {
  319. FLAC__uint32 test = 1;
  321. is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true;
  323. #ifdef FLAC__HAS_OGG
  324. if(decoder_session->is_ogg) {
  325. decoder_session->decoder.ogg.file = OggFLAC__file_decoder_new();
  327. if(0 == decoder_session->decoder.ogg.file) {
  328. flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instancen", decoder_session->inbasefilename);
  329. return false;
  330. }
  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);
  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);
  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();
  363. if(0 == decoder_session->decoder.flac.file) {
  364. flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instancen", decoder_session->inbasefilename);
  365. return false;
  366. }
  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);
  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. }
  389. return true;
  390. }
  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;
  424. /* write the WAVE/AIFF headers if necessary */
  425. if(!write_necessary_headers(d)) {
  426. d->abort_flag = true;
  427. return false;
  428. }
  430. if(d->skip_specification->value.samples > 0) {
  431. const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples;
  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. }
  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("00", 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. }
  509. return true;
  510. }
  512. int DecoderSession_finish_ok(DecoderSession *d)
  513. {
  514. FLAC__bool md5_failure = false;
  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 mismatchn", 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. }
  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. }
  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);
  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. }
  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 0n", inbasefilename);
  585. return false;
  586. }
  588. FLAC__ASSERT(spec->value_is_samples);
  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. }
  599. /* error check */
  600. if(spec->value.samples < 0) {
  601. flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of inputn", 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 pointn", 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 inputn", inbasefilename);
  610. return false;
  611. }
  613. return true;
  614. }
  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.  Tryn", 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 chunkn", 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;
  641. if(decoder_session->wave_chunk_size_fixup.needs_fixup)
  642. decoder_session->wave_chunk_size_fixup.riff_offset = ftell(decoder_session->fout);
  644. if(!write_little_endian_uint32(decoder_session->fout, aligned_data_size+36)) /* filesize-8 */
  645. return false;
  647. if(flac__utils_fwrite("WAVEfmt ", 1, 8, decoder_session->fout) != 8)
  648. return false;
  650. if(flac__utils_fwrite("20000000", 1, 4, decoder_session->fout) != 4) /* chunk size = 16 */
  651. return false;
  653. if(flac__utils_fwrite("0100", 1, 2, decoder_session->fout) != 2) /* compression code == 1 */
  654. return false;
  656. if(!write_little_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->channels)))
  657. return false;
  659. if(!write_little_endian_uint32(decoder_session->fout, decoder_session->sample_rate))
  660. return false;
  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;
  665. if(!write_little_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->channels * ((decoder_session->bps+7) / 8)))) /* block align */
  666. return false;
  668. if(!write_little_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->bps))) /* bits per sample */
  669. return false;
  671. if(flac__utils_fwrite("data", 1, 4, decoder_session->fout) != 4)
  672. return false;
  674. if(decoder_session->wave_chunk_size_fixup.needs_fixup)
  675. decoder_session->wave_chunk_size_fixup.data_offset = ftell(decoder_session->fout);
  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;
  684. if(decoder_session->wave_chunk_size_fixup.needs_fixup)
  685. decoder_session->wave_chunk_size_fixup.riff_offset = ftell(decoder_session->fout);
  687. if(!write_big_endian_uint32(decoder_session->fout, aligned_data_size+46)) /* filesize-8 */
  688. return false;
  690. if(flac__utils_fwrite("AIFFCOMM", 1, 8, decoder_session->fout) != 8)
  691. return false;
  693. if(flac__utils_fwrite("00000022", 1, 4, decoder_session->fout) != 4) /* chunk size = 18 */
  694. return false;
  696. if(!write_big_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->channels)))
  697. return false;
  699. if(decoder_session->wave_chunk_size_fixup.needs_fixup)
  700. decoder_session->wave_chunk_size_fixup.frames_offset = ftell(decoder_session->fout);
  702. if(!write_big_endian_uint32(decoder_session->fout, (FLAC__uint32)decoder_session->total_samples))
  703. return false;
  705. if(!write_big_endian_uint16(decoder_session->fout, (FLAC__uint16)(decoder_session->bps)))
  706. return false;
  708. if(!write_sane_extended(decoder_session->fout, decoder_session->sample_rate))
  709. return false;
  711. if(flac__utils_fwrite("SSND", 1, 4, decoder_session->fout) != 4)
  712. return false;
  714. if(decoder_session->wave_chunk_size_fixup.needs_fixup)
  715. decoder_session->wave_chunk_size_fixup.data_offset = ftell(decoder_session->fout);
  717. if(!write_big_endian_uint32(decoder_session->fout, (FLAC__uint32)data_size+8)) /* data size */
  718. return false;
  720. if(!write_big_endian_uint32(decoder_session->fout, 0/*offset*/))
  721. return false;
  723. if(!write_big_endian_uint32(decoder_session->fout, 0/*block_size*/))
  724. return false;
  725. }
  726. }
  728. return true;
  729. }
  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. }
  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. }
  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. }
  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. }
  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;
  787. FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */
  789. for(shift= 0U; (val>>(31-shift))==0U; ++shift)
  790. ;
  791. val<<= shift;
  792. exponent= 63U-(shift+32U); /* add 32 for unused second word */
  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;
  801. return true;
  802. }
  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;
  811. if(0 == f) {
  812. flac__utils_printf(stderr, 1, "ERROR, couldn't open file %s while fixing up %s chunk sizen", outfilename, fmt_desc);
  813. return false;
  814. }
  816. data_size = aligned_data_size = total_samples * channels * ((bps+7)/8);
  817. if(aligned_data_size & 1)
  818. aligned_data_size++;
  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 sizen", 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 sizen", 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 sizen", 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 sizen", 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 sizen", 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 sizen", outfilename, fmt_desc);
  849. fclose(f);
  850. return false;
  851. }
  852. fclose(f);
  853. return true;
  854. }
  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;
  872. (void)decoder;
  874. if(decoder_session->abort_flag)
  875. return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
  877. if(bps != decoder_session->bps) {
  878. flac__utils_printf(stderr, 1, "%s: ERROR, bits-per-sample is %u in frame but %u in STREAMINFOn", 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 STREAMINFOn", 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 STREAMINFOn", decoder_session->inbasefilename, frame->header.sample_rate, decoder_session->sample_rate);
  887. return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
  888. }
  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. }
  911. if(wide_samples > 0) {
  912. decoder_session->samples_processed += wide_samples;
  913. decoder_session->frame_counter++;
  915. if(!(decoder_session->frame_counter & 0x3f))
  916. print_stats(decoder_session);
  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. }
  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;
  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;
  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 streamn", 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 0n", 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;
  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;
  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. }
  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 8/16/24n", 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 0n", decoder_session->inbasefilename);
  1087. decoder_session->abort_flag = true;
  1088. return;
  1089. }
  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);
  1093. FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
  1094. FLAC__ASSERT(decoder_session->skip_specification->value_is_samples);
  1096. FLAC__ASSERT(!decoder_session->until_specification->is_relative);
  1097. FLAC__ASSERT(decoder_session->until_specification->value_is_samples);
  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);
  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 tagn", 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 outputn", 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 losslessn", decoder_session->inbasefilename);
  1120. }
  1121. }
  1122. }
  1123. }
  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:%sn", decoder_session->inbasefilename, status, FLAC__StreamDecoderErrorStatusString[status]);
  1130. if(!decoder_session->continue_through_decode_errors)
  1131. decoder_session->abort_flag = true;
  1132. }
  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;
  1139. flac__utils_printf(stderr, 1, "n%s: %sn", d->inbasefilename, message);
  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. }
  1151. flac__utils_printf(stderr, 1, "%*s state = %sn", ilen, "", state_string);
  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.  Tryn"
  1158. "  metaflac --show-vendor-tag %sn"
  1159. "If the version number is greater than %s, this decoder is probablyn"
  1160. "not able to decode the file.  If the version number is not, the filen"
  1161. "may be corrupted, or you may have found a bug.  In this case pleasen"
  1162. "submit a bug report ton"
  1163. "    http://sourceforge.net/bugs/?func=addbug&group_id=13478n"
  1164. "Make sure to include an email contact in the comment and/or use then"
  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 existn"
  1178. "or is not readable.n"
  1179. );
  1180. }
  1181. }
  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. }