1 /* flac - Command-line FLAC encoder/decoder
2 * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007,2008 Josh Coalson
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.
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.
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.
23 #if defined _WIN32 && !defined __CYGWIN__
24 /* where MSVC puts unlink() */
29 #if defined _MSC_VER || defined __MINGW32__
30 #include <sys/types.h> /* for off_t */
31 #if _MSC_VER <= 1600 /* @@@ [2G limit] */
37 #include <math.h> /* for floor() */
38 #include <stdio.h> /* for FILE etc. */
39 #include <string.h> /* for strcmp(), strerror() */
41 #include "share/grabbag.h"
42 #include "share/replaygain_synthesis.h"
48 FLAC__bool use_first_serial_number;
53 FLAC__bool treat_warnings_as_errors;
54 FLAC__bool continue_through_decode_errors;
55 FLAC__bool channel_map_none;
58 replaygain_synthesis_spec_t spec;
59 FLAC__bool apply; /* 'spec.apply' is just a request; this 'apply' means we actually parsed the RG tags and are ready to go */
61 DitherContext dither_context;
65 FLAC__bool analysis_mode;
66 analysis_options aopts;
67 utils__SkipUntilSpecification *skip_specification;
68 utils__SkipUntilSpecification *until_specification; /* a canonicalized value of 0 mean end-of-stream (i.e. --until=-0) */
69 utils__CueSpecification *cue_specification;
71 const char *inbasefilename;
72 const char *infilename;
73 const char *outfilename;
75 FLAC__uint64 samples_processed;
76 unsigned frame_counter;
77 FLAC__bool abort_flag;
78 FLAC__bool aborting_due_to_until; /* true if we intentionally abort decoding prematurely because we hit the --until point */
79 FLAC__bool aborting_due_to_unparseable; /* true if we abort decoding because we hit an unparseable frame */
80 FLAC__bool error_callback_suppress_messages; /* turn on to prevent repeating messages from the error callback */
82 FLAC__bool iff_headers_need_fixup;
84 FLAC__bool is_big_endian;
85 FLAC__bool is_unsigned_samples;
86 FLAC__bool got_stream_info;
87 FLAC__bool has_md5sum;
88 FLAC__uint64 total_samples;
92 FLAC__uint32 channel_mask;
94 /* these are used only in analyze mode */
95 FLAC__uint64 decode_position;
97 FLAC__StreamDecoder *decoder;
101 foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */
102 off_t fm_offset1, fm_offset2, fm_offset3;
106 static FLAC__bool is_big_endian_host_;
112 static FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool use_first_serial_number, long serial_number, FileFormat format, FLAC__bool treat_warnings_as_errors, FLAC__bool continue_through_decode_errors, FLAC__bool channel_map_none, 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, foreign_metadata_t *foreign_metadata, const char *infilename, const char *outfilename);
113 static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred);
114 static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, const char *infilename);
115 static FLAC__bool DecoderSession_process(DecoderSession *d);
116 static int DecoderSession_finish_ok(DecoderSession *d);
117 static int DecoderSession_finish_error(DecoderSession *d);
118 static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input);
119 static FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples);
120 static FLAC__bool write_riff_wave_fmt_chunk_body(FILE *f, FLAC__bool is_waveformatextensible, unsigned bps, unsigned channels, unsigned sample_rate, FLAC__uint32 channel_mask);
121 static FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate);
122 static FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val);
123 static FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val);
124 static FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val);
125 static FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val);
126 static FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val);
127 static FLAC__bool write_sane_extended(FILE *f, unsigned val);
128 static FLAC__bool fixup_iff_headers(DecoderSession *d);
129 static FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
130 static void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
131 static void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
132 static void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status);
133 static void print_error_with_state(const DecoderSession *d, const char *message);
134 static void print_stats(const DecoderSession *decoder_session);
140 int flac__decode_file(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, decode_options_t options)
142 DecoderSession decoder_session;
145 options.format == FORMAT_WAVE ||
146 options.format == FORMAT_WAVE64 ||
147 options.format == FORMAT_RF64 ||
148 options.format == FORMAT_AIFF ||
149 options.format == FORMAT_AIFF_C ||
150 options.format == FORMAT_RAW
153 if(options.format == FORMAT_RAW) {
154 decoder_session.is_big_endian = options.format_options.raw.is_big_endian;
155 decoder_session.is_unsigned_samples = options.format_options.raw.is_unsigned_samples;
159 DecoderSession_construct(
163 options.use_first_serial_number,
164 options.serial_number,
167 /*use_first_serial_number=*/false,
171 options.treat_warnings_as_errors,
172 options.continue_through_decode_errors,
173 options.channel_map_none,
174 options.replaygain_synthesis_spec,
177 &options.skip_specification,
178 &options.until_specification,
179 options.has_cue_specification? &options.cue_specification : 0,
180 options.format == FORMAT_RAW? NULL : options.format_options.iff.foreign_metadata,
187 if(!DecoderSession_init_decoder(&decoder_session, infilename))
188 return DecoderSession_finish_error(&decoder_session);
190 if(!DecoderSession_process(&decoder_session))
191 return DecoderSession_finish_error(&decoder_session);
193 return DecoderSession_finish_ok(&decoder_session);
196 FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool use_first_serial_number, long serial_number, FileFormat format, FLAC__bool treat_warnings_as_errors, FLAC__bool continue_through_decode_errors, FLAC__bool channel_map_none, 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, foreign_metadata_t *foreign_metadata, const char *infilename, const char *outfilename)
200 d->use_first_serial_number = use_first_serial_number;
201 d->serial_number = serial_number;
204 (void)use_first_serial_number;
209 d->treat_warnings_as_errors = treat_warnings_as_errors;
210 d->continue_through_decode_errors = continue_through_decode_errors;
211 d->channel_map_none = channel_map_none;
212 d->replaygain.spec = replaygain_synthesis_spec;
213 d->replaygain.apply = false;
214 d->replaygain.scale = 0.0;
215 /* d->replaygain.dither_context gets initialized later once we know the sample resolution */
216 d->test_only = (0 == outfilename);
217 d->analysis_mode = analysis_mode;
219 d->skip_specification = skip_specification;
220 d->until_specification = until_specification;
221 d->cue_specification = cue_specification;
223 d->inbasefilename = grabbag__file_get_basename(infilename);
224 d->infilename = infilename;
225 d->outfilename = outfilename;
227 d->samples_processed = 0;
228 d->frame_counter = 0;
229 d->abort_flag = false;
230 d->aborting_due_to_until = false;
231 d->aborting_due_to_unparseable = false;
232 d->error_callback_suppress_messages = false;
234 d->iff_headers_need_fixup = false;
236 d->total_samples = 0;
237 d->got_stream_info = false;
238 d->has_md5sum = false;
244 d->decode_position = 0;
248 d->fout = 0; /* initialized with an open file later if necessary */
250 d->foreign_metadata = foreign_metadata;
252 FLAC__ASSERT(!(d->test_only && d->analysis_mode));
255 if(0 == strcmp(outfilename, "-")) {
256 d->fout = grabbag__file_get_binary_stdout();
259 if(0 == (d->fout = fopen(outfilename, "wb"))) {
260 flac__utils_printf(stderr, 1, "%s: ERROR: can't open output file %s: %s\n", d->inbasefilename, outfilename, strerror(errno));
261 DecoderSession_destroy(d, /*error_occurred=*/true);
268 flac__analyze_init(aopts);
273 void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred)
275 if(0 != d->fout && d->fout != stdout) {
278 unlink(d->outfilename);
282 FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, const char *infilename)
284 FLAC__StreamDecoderInitStatus init_status;
285 FLAC__uint32 test = 1;
287 is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true;
289 if(!decoder_session->analysis_mode && !decoder_session->test_only && decoder_session->foreign_metadata) {
291 if(!flac__foreign_metadata_read_from_flac(decoder_session->foreign_metadata, infilename, &error)) {
292 flac__utils_printf(stderr, 1, "%s: ERROR reading foreign metadata: %s\n", decoder_session->inbasefilename, error);
297 decoder_session->decoder = FLAC__stream_decoder_new();
299 if(0 == decoder_session->decoder) {
300 flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename);
304 FLAC__stream_decoder_set_md5_checking(decoder_session->decoder, true);
305 if (0 != decoder_session->cue_specification)
306 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_CUESHEET);
307 if (decoder_session->replaygain.spec.apply)
308 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_VORBIS_COMMENT);
311 if(decoder_session->is_ogg) {
312 if(!decoder_session->use_first_serial_number)
313 FLAC__stream_decoder_set_ogg_serial_number(decoder_session->decoder, decoder_session->serial_number);
314 init_status = FLAC__stream_decoder_init_ogg_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session);
319 init_status = FLAC__stream_decoder_init_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session);
322 if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
323 print_error_with_init_status(decoder_session, "ERROR initializing decoder", init_status);
330 FLAC__bool DecoderSession_process(DecoderSession *d)
332 if(!FLAC__stream_decoder_process_until_end_of_metadata(d->decoder)) {
333 flac__utils_printf(stderr, 2, "\n");
334 print_error_with_state(d, "ERROR while decoding metadata");
337 if(FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM) {
338 flac__utils_printf(stderr, 2, "\n");
339 print_error_with_state(d, "ERROR during metadata decoding");
340 if(!d->continue_through_decode_errors)
347 /* set channel mapping */
348 if(!d->channel_map_none) {
349 /* currently FLAC order matches SMPTE/WAVEFORMATEXTENSIBLE order, so no reordering is necessary; see encode.c */
350 /* only the channel mask must be set if it was not already picked up from the WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag */
351 if(d->channels == 1) {
352 if(d->channel_mask == 0)
353 d->channel_mask = 0x0001;
355 else if(d->channels == 2) {
356 if(d->channel_mask == 0)
357 d->channel_mask = 0x0003;
359 else if(d->channels == 3) {
360 if(d->channel_mask == 0)
361 d->channel_mask = 0x0007;
363 else if(d->channels == 4) {
364 if(d->channel_mask == 0)
365 d->channel_mask = 0x0033;
367 else if(d->channels == 5) {
368 if(d->channel_mask == 0)
369 d->channel_mask = 0x0607;
371 else if(d->channels == 6) {
372 if(d->channel_mask == 0)
373 d->channel_mask = 0x060f;
377 /* write the WAVE/AIFF headers if necessary */
378 if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
379 if(!write_iff_headers(d->fout, d, d->total_samples)) {
380 d->abort_flag = true;
385 if(d->skip_specification->value.samples > 0) {
386 const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples;
388 if(!FLAC__stream_decoder_seek_absolute(d->decoder, skip)) {
389 print_error_with_state(d, "ERROR seeking while skipping bytes");
393 if(!FLAC__stream_decoder_process_until_end_of_stream(d->decoder) && !d->aborting_due_to_until) {
394 flac__utils_printf(stderr, 2, "\n");
395 print_error_with_state(d, "ERROR while decoding data");
396 if(!d->continue_through_decode_errors)
400 (d->abort_flag && !(d->aborting_due_to_until || d->continue_through_decode_errors)) ||
401 (FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM && !d->aborting_due_to_until)
403 flac__utils_printf(stderr, 2, "\n");
404 print_error_with_state(d, "ERROR during decoding");
408 /* write padding bytes for alignment if necessary */
409 if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
410 const FLAC__uint64 data_size = d->total_samples * d->channels * ((d->bps+7)/8);
412 if(d->format != FORMAT_WAVE64) {
413 padding = (unsigned)(data_size & 1);
416 /* 8-byte alignment for Wave64 */
417 padding = (8 - (unsigned)(data_size & 7)) & 7;
419 for( ; padding > 0; --padding) {
420 if(flac__utils_fwrite("\000", 1, 1, d->fout) != 1) {
421 print_error_with_state(
423 d->format == FORMAT_WAVE? "ERROR writing pad byte to WAVE data chunk" :
424 d->format == FORMAT_WAVE64? "ERROR writing pad bytes to WAVE64 data chunk" :
425 d->format == FORMAT_RF64? "ERROR writing pad byte to RF64 data chunk" :
426 "ERROR writing pad byte to AIFF SSND chunk"
436 int DecoderSession_finish_ok(DecoderSession *d)
438 FLAC__bool ok = true, md5_failure = false;
441 md5_failure = !FLAC__stream_decoder_finish(d->decoder) && !d->aborting_due_to_until;
443 FLAC__stream_decoder_delete(d->decoder);
446 flac__analyze_finish(d->aopts);
448 flac__utils_printf(stderr, 1, "\r%s: ERROR, MD5 signature mismatch\n", d->inbasefilename);
449 ok = d->continue_through_decode_errors;
452 if(!d->got_stream_info) {
453 flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since there was no STREAMINFO\n", d->inbasefilename);
454 ok = !d->treat_warnings_as_errors;
456 else if(!d->has_md5sum) {
457 flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since it was unset in the STREAMINFO\n", d->inbasefilename);
458 ok = !d->treat_warnings_as_errors;
460 flac__utils_printf(stderr, 2, "\r%s: %s \n", d->inbasefilename, d->test_only? "ok ":d->analysis_mode?"done ":"done");
462 DecoderSession_destroy(d, /*error_occurred=*/!ok);
463 if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
464 if(d->iff_headers_need_fixup || (!d->got_stream_info && strcmp(d->outfilename, "-"))) {
465 if(!fixup_iff_headers(d))
468 if(d->foreign_metadata) {
470 if(!flac__foreign_metadata_write_to_iff(d->foreign_metadata, d->infilename, d->outfilename, d->fm_offset1, d->fm_offset2, d->fm_offset3, &error)) {
471 flac__utils_printf(stderr, 1, "ERROR updating foreign metadata from %s to %s: %s\n", d->infilename, d->outfilename, error);
479 int DecoderSession_finish_error(DecoderSession *d)
482 (void)FLAC__stream_decoder_finish(d->decoder);
483 FLAC__stream_decoder_delete(d->decoder);
486 flac__analyze_finish(d->aopts);
487 DecoderSession_destroy(d, /*error_occurred=*/true);
491 FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input)
493 /* convert from mm:ss.sss to sample number if necessary */
494 flac__utils_canonicalize_skip_until_specification(spec, sample_rate);
496 /* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */
497 if(spec->is_relative && spec->value.samples == 0) {
498 spec->is_relative = false;
502 /* in any other case the total samples in the input must be known */
503 if(total_samples_in_input == 0) {
504 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when FLAC metadata has total sample count of 0\n", inbasefilename);
508 FLAC__ASSERT(spec->value_is_samples);
510 /* convert relative specifications to absolute */
511 if(spec->is_relative) {
512 if(spec->value.samples <= 0)
513 spec->value.samples += (FLAC__int64)total_samples_in_input;
515 spec->value.samples += skip;
516 spec->is_relative = false;
520 if(spec->value.samples < 0) {
521 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename);
524 if((FLAC__uint64)spec->value.samples <= skip) {
525 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename);
528 if((FLAC__uint64)spec->value.samples > total_samples_in_input) {
529 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename);
536 FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples)
538 const FileFormat format = decoder_session->format;
539 const char *fmt_desc =
540 format==FORMAT_WAVE? "WAVE" :
541 format==FORMAT_WAVE64? "Wave64" :
542 format==FORMAT_RF64? "RF64" :
544 const FLAC__bool is_waveformatextensible =
545 (format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) &&
547 decoder_session->channel_mask == 2 ||
548 decoder_session->channel_mask > 3 ||
549 decoder_session->bps%8 ||
550 decoder_session->channels > 2
552 const FLAC__uint64 data_size = samples * decoder_session->channels * ((decoder_session->bps+7)/8);
553 const FLAC__uint64 aligned_data_size =
554 format == FORMAT_WAVE64?
555 (data_size+7) & (~(FLAC__uint64)7) :
556 (data_size+1) & (~(FLAC__uint64)1);
558 FLAC__uint64 iff_size;
559 unsigned foreign_metadata_size = 0; /* size of all non-audio non-fmt/COMM foreign metadata chunks */
560 foreign_metadata_t *fm = decoder_session->foreign_metadata;
564 format == FORMAT_WAVE ||
565 format == FORMAT_WAVE64 ||
566 format == FORMAT_RF64 ||
567 format == FORMAT_AIFF ||
568 format == FORMAT_AIFF_C
573 flac__utils_printf(stderr, 1, "%s: WARNING, don't have accurate sample count available for %s header.\n", decoder_session->inbasefilename, fmt_desc);
574 flac__utils_printf(stderr, 1, " Generated %s file will have a data chunk size of 0. Try\n", fmt_desc);
575 flac__utils_printf(stderr, 1, " decoding directly to a file instead.\n");
576 if(decoder_session->treat_warnings_as_errors)
580 decoder_session->iff_headers_need_fixup = true;
585 FLAC__ASSERT(fm->format_block);
586 FLAC__ASSERT(fm->audio_block);
587 FLAC__ASSERT(fm->format_block < fm->audio_block);
588 /* calc foreign metadata size; we always skip the first chunk, ds64 chunk, format chunk, and sound chunk since we write our own */
589 for(i = format==FORMAT_RF64?2:1; i < fm->num_blocks; i++) {
590 if(i != fm->format_block && i != fm->audio_block)
591 foreign_metadata_size += fm->blocks[i].size;
597 else if(format == FORMAT_WAVE || format == FORMAT_RF64)
598 /* 4 for WAVE form bytes */
599 /* +{36,0} for ds64 chunk */
600 /* +8+{40,16} for fmt chunk header and body */
601 /* +8 for data chunk header */
602 iff_size = 4 + (format==FORMAT_RF64?36:0) + 8+(is_waveformatextensible?40:16) + 8 + foreign_metadata_size + aligned_data_size;
603 else if(format == FORMAT_WAVE64)
604 /* 16+8 for RIFF GUID and size field */
605 /* +16 for WAVE GUID */
606 /* +16+8+{40,16} for fmt chunk header (GUID and size field) and body */
607 /* +16+8 for data chunk header (GUID and size field) */
608 iff_size = 16+8 + 16 + 16+8+(is_waveformatextensible?40:16) + 16+8 + foreign_metadata_size + aligned_data_size;
610 iff_size = 46 + foreign_metadata_size + aligned_data_size;
612 if(format != FORMAT_WAVE64 && format != FORMAT_RF64 && iff_size >= 0xFFFFFFF4) {
613 flac__utils_printf(stderr, 1, "%s: ERROR: stream is too big to fit in a single %s file\n", decoder_session->inbasefilename, fmt_desc);
617 if(format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) {
621 if(flac__utils_fwrite("RIFF", 1, 4, f) != 4)
623 if(!write_little_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
625 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
629 /* RIFF GUID 66666972-912E-11CF-A5D6-28DB04C10000 */
630 if(flac__utils_fwrite("\x72\x69\x66\x66\x2E\x91\xCF\x11\xD6\xA5\x28\xDB\x04\xC1\x00\x00", 1, 16, f) != 16)
632 if(!write_little_endian_uint64(f, iff_size))
634 /* WAVE GUID 65766177-ACF3-11D3-8CD1-00C04F8EDB8A */
635 if(flac__utils_fwrite("\x77\x61\x76\x65\xF3\xAC\xD3\x11\xD1\x8C\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
639 if(flac__utils_fwrite("RF64", 1, 4, f) != 4)
641 if(!write_little_endian_uint32(f, 0xffffffff))
643 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
650 /* ds64 chunk for RF64 */
651 if(format == FORMAT_RF64) {
652 if(flac__utils_fwrite("ds64", 1, 4, f) != 4)
655 if(!write_little_endian_uint32(f, 28)) /* chunk size */
658 if(!write_little_endian_uint64(f, iff_size))
661 if(!write_little_endian_uint64(f, data_size))
664 if(!write_little_endian_uint64(f, samples)) /*@@@@@@ correct? */
667 if(!write_little_endian_uint32(f, 0)) /* table size */
671 decoder_session->fm_offset1 = ftello(f);
674 /* seek forward to {allocate} or {skip over already-written chunks} before "fmt " */
675 for(i = format==FORMAT_RF64?2:1; i < fm->format_block; i++) {
676 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
677 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"fmt \"\n", decoder_session->inbasefilename);
683 if(format != FORMAT_WAVE64) {
684 if(flac__utils_fwrite("fmt ", 1, 4, f) != 4)
686 if(!write_little_endian_uint32(f, is_waveformatextensible? 40 : 16)) /* chunk size */
690 /* fmt GUID 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A */
691 if(flac__utils_fwrite("\x66\x6D\x74\x20\xF3\xAC\xD3\x11\xD1\x8C\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
693 /* chunk size (+16+8 for GUID and size fields) */
694 if(!write_little_endian_uint64(f, 16+8+(is_waveformatextensible?40:16)))
698 if(!write_riff_wave_fmt_chunk_body(f, is_waveformatextensible, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate, decoder_session->channel_mask))
701 decoder_session->fm_offset2 = ftello(f);
704 /* seek forward to {allocate} or {skip over already-written chunks} after "fmt " but before "data" */
705 for(i = fm->format_block+1; i < fm->audio_block; i++) {
706 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
707 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"fmt \"\n", decoder_session->inbasefilename);
713 if(format != FORMAT_WAVE64) {
714 if(flac__utils_fwrite("data", 1, 4, f) != 4)
716 if(!write_little_endian_uint32(f, format==FORMAT_RF64? 0xffffffff : (FLAC__uint32)data_size))
720 /* data GUID 61746164-ACF3-11D3-8CD1-00C04F8EDB8A */
721 if(flac__utils_fwrite("\x64\x61\x74\x61\xF3\xAC\xD3\x11\xD1\x8C\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
723 /* +16+8 for GUID and size fields */
724 if(!write_little_endian_uint64(f, 16+8 + data_size))
728 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
731 if(flac__utils_fwrite("FORM", 1, 4, f) != 4)
734 if(!write_big_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
737 if(flac__utils_fwrite("AIFF", 1, 4, f) != 4)
740 decoder_session->fm_offset1 = ftello(f);
743 /* seek forward to {allocate} or {skip over already-written chunks} before "COMM" */
744 for(i = 1; i < fm->format_block; i++) {
745 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
746 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"COMM\"\n", decoder_session->inbasefilename);
752 if(!write_aiff_form_comm_chunk(f, samples, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate))
755 decoder_session->fm_offset2 = ftello(f);
758 /* seek forward to {allocate} or {skip over already-written chunks} after "COMM" but before "SSND" */
759 for(i = fm->format_block+1; i < fm->audio_block; i++) {
760 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
761 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"COMM\"\n", decoder_session->inbasefilename);
767 if(flac__utils_fwrite("SSND", 1, 4, f) != 4)
770 if(!write_big_endian_uint32(f, (FLAC__uint32)data_size + 8)) /* data size */
773 if(!write_big_endian_uint32(f, 0/*offset_size*/))
776 if(!write_big_endian_uint32(f, 0/*block_size*/))
779 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
785 FLAC__bool write_riff_wave_fmt_chunk_body(FILE *f, FLAC__bool is_waveformatextensible, unsigned bps, unsigned channels, unsigned sample_rate, FLAC__uint32 channel_mask)
787 if(!write_little_endian_uint16(f, (FLAC__uint16)(is_waveformatextensible? 65534 : 1))) /* compression code */
790 if(!write_little_endian_uint16(f, (FLAC__uint16)channels))
793 if(!write_little_endian_uint32(f, sample_rate))
796 if(!write_little_endian_uint32(f, sample_rate * channels * ((bps+7) / 8)))
799 if(!write_little_endian_uint16(f, (FLAC__uint16)(channels * ((bps+7) / 8)))) /* block align */
802 if(!write_little_endian_uint16(f, (FLAC__uint16)(((bps+7)/8)*8))) /* bits per sample */
805 if(is_waveformatextensible) {
806 if(!write_little_endian_uint16(f, (FLAC__uint16)22)) /* cbSize */
809 if(!write_little_endian_uint16(f, (FLAC__uint16)bps)) /* validBitsPerSample */
812 if(!write_little_endian_uint32(f, channel_mask))
815 /* GUID = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} */
816 if(flac__utils_fwrite("\x01\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xaa\x00\x38\x9b\x71", 1, 16, f) != 16)
823 FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate)
825 FLAC__ASSERT(samples <= 0xffffffff);
827 if(flac__utils_fwrite("COMM", 1, 4, f) != 4)
830 if(!write_big_endian_uint32(f, 18)) /* chunk size = 18 */
833 if(!write_big_endian_uint16(f, (FLAC__uint16)channels))
836 if(!write_big_endian_uint32(f, (FLAC__uint32)samples))
839 if(!write_big_endian_uint16(f, (FLAC__uint16)bps))
842 if(!write_sane_extended(f, sample_rate))
848 FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val)
850 FLAC__byte *b = (FLAC__byte*)(&val);
851 if(is_big_endian_host_) {
853 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
855 return flac__utils_fwrite(b, 1, 2, f) == 2;
858 FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val)
860 FLAC__byte *b = (FLAC__byte*)(&val);
861 if(is_big_endian_host_) {
863 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
864 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
866 return flac__utils_fwrite(b, 1, 4, f) == 4;
869 FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val)
871 FLAC__byte *b = (FLAC__byte*)(&val);
872 if(is_big_endian_host_) {
874 tmp = b[7]; b[7] = b[0]; b[0] = tmp;
875 tmp = b[6]; b[6] = b[1]; b[1] = tmp;
876 tmp = b[5]; b[5] = b[2]; b[2] = tmp;
877 tmp = b[4]; b[4] = b[3]; b[3] = tmp;
879 return flac__utils_fwrite(b, 1, 8, f) == 8;
882 FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val)
884 FLAC__byte *b = (FLAC__byte*)(&val);
885 if(!is_big_endian_host_) {
887 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
889 return flac__utils_fwrite(b, 1, 2, f) == 2;
892 FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val)
894 FLAC__byte *b = (FLAC__byte*)(&val);
895 if(!is_big_endian_host_) {
897 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
898 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
900 return flac__utils_fwrite(b, 1, 4, f) == 4;
903 FLAC__bool write_sane_extended(FILE *f, unsigned val)
904 /* Write to 'f' a SANE extended representation of 'val'. Return false if
905 * the write succeeds; return true otherwise.
907 * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits
908 * of exponent, and 64 bits of significand (mantissa). Unlike most IEEE-754
909 * representations, it does not imply a 1 above the MSB of the significand.
915 unsigned int shift, exponent;
917 FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */
919 for(shift= 0U; (val>>(31-shift))==0U; ++shift)
922 exponent= 63U-(shift+32U); /* add 32 for unused second word */
924 if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF)))
926 if(!write_big_endian_uint32(f, val))
928 if(!write_big_endian_uint32(f, 0)) /* unused second word */
934 FLAC__bool fixup_iff_headers(DecoderSession *d)
936 const char *fmt_desc =
937 d->format==FORMAT_WAVE? "WAVE" :
938 d->format==FORMAT_WAVE64? "Wave64" :
939 d->format==FORMAT_RF64? "RF64" :
941 FILE *f = fopen(d->outfilename, "r+b"); /* stream is positioned at beginning of file */
944 flac__utils_printf(stderr, 1, "ERROR, couldn't open file %s while fixing up %s chunk size: %s\n", d->outfilename, fmt_desc, strerror(errno));
948 if(!write_iff_headers(f, d, d->samples_processed)) {
957 FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
959 DecoderSession *decoder_session = (DecoderSession*)client_data;
960 FILE *fout = decoder_session->fout;
961 const unsigned bps = frame->header.bits_per_sample, channels = frame->header.channels;
962 const unsigned shift = (decoder_session->format != FORMAT_RAW && (bps%8))? 8-(bps%8): 0;
963 FLAC__bool is_big_endian = (
964 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? true : (
965 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? false :
966 decoder_session->is_big_endian
968 FLAC__bool is_unsigned_samples = (
969 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? false : (
970 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? bps<=8 :
971 decoder_session->is_unsigned_samples
973 unsigned wide_samples = frame->header.blocksize, wide_sample, sample, channel, byte;
974 unsigned frame_bytes = 0;
975 static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)]; /* WATCHOUT: can be up to 2 megs */
976 FLAC__uint8 *u8buffer = (FLAC__uint8 *)s8buffer;
977 FLAC__int16 *s16buffer = (FLAC__int16 *)s8buffer;
978 FLAC__uint16 *u16buffer = (FLAC__uint16 *)s8buffer;
979 FLAC__int32 *s32buffer = (FLAC__int32 *)s8buffer;
980 FLAC__uint32 *u32buffer = (FLAC__uint32 *)s8buffer;
981 size_t bytes_to_write = 0;
985 if(decoder_session->abort_flag)
986 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
988 /* sanity-check the bits-per-sample */
989 if(decoder_session->bps) {
990 if(bps != decoder_session->bps) {
991 if(decoder_session->got_stream_info)
992 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);
994 flac__utils_printf(stderr, 1, "%s: ERROR, bits-per-sample is %u in this frame but %u in previous frames\n", decoder_session->inbasefilename, bps, decoder_session->bps);
995 if(!decoder_session->continue_through_decode_errors)
996 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1000 /* must not have gotten STREAMINFO, save the bps from the frame header */
1001 FLAC__ASSERT(!decoder_session->got_stream_info);
1002 decoder_session->bps = bps;
1005 /* sanity-check the #channels */
1006 if(decoder_session->channels) {
1007 if(channels != decoder_session->channels) {
1008 if(decoder_session->got_stream_info)
1009 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, channels, decoder_session->channels);
1011 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in this frame but %u in previous frames\n", decoder_session->inbasefilename, channels, decoder_session->channels);
1012 if(!decoder_session->continue_through_decode_errors)
1013 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1017 /* must not have gotten STREAMINFO, save the #channels from the frame header */
1018 FLAC__ASSERT(!decoder_session->got_stream_info);
1019 decoder_session->channels = channels;
1022 /* sanity-check the sample rate */
1023 if(decoder_session->sample_rate) {
1024 if(frame->header.sample_rate != decoder_session->sample_rate) {
1025 if(decoder_session->got_stream_info)
1026 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);
1028 flac__utils_printf(stderr, 1, "%s: ERROR, sample rate is %u in this frame but %u in previous frames\n", decoder_session->inbasefilename, frame->header.sample_rate, decoder_session->sample_rate);
1029 if(!decoder_session->continue_through_decode_errors)
1030 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1034 /* must not have gotten STREAMINFO, save the sample rate from the frame header */
1035 FLAC__ASSERT(!decoder_session->got_stream_info);
1036 decoder_session->sample_rate = frame->header.sample_rate;
1040 * limit the number of samples to accept based on --until
1042 FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1043 /* if we never got the total_samples from the metadata, the skip and until specs would never have been canonicalized, so protect against that: */
1044 if(decoder_session->skip_specification->is_relative) {
1045 if(decoder_session->skip_specification->value.samples == 0) /* special case for when no --skip was given */
1046 decoder_session->skip_specification->is_relative = false; /* convert to our meaning of beginning-of-stream */
1048 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --skip because the total sample count was not found in the metadata\n", decoder_session->inbasefilename);
1049 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1052 if(decoder_session->until_specification->is_relative) {
1053 if(decoder_session->until_specification->value.samples == 0) /* special case for when no --until was given */
1054 decoder_session->until_specification->is_relative = false; /* convert to our meaning of end-of-stream */
1056 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until because the total sample count was not found in the metadata\n", decoder_session->inbasefilename);
1057 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1060 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1061 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1062 if(decoder_session->until_specification->value.samples > 0) {
1063 const FLAC__uint64 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1064 const FLAC__uint64 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1065 const FLAC__uint64 input_samples_passed = skip + decoder_session->samples_processed;
1066 FLAC__ASSERT(until >= input_samples_passed);
1067 if(input_samples_passed + wide_samples > until)
1068 wide_samples = (unsigned)(until - input_samples_passed);
1069 if (wide_samples == 0) {
1070 decoder_session->abort_flag = true;
1071 decoder_session->aborting_due_to_until = true;
1072 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1076 if(decoder_session->analysis_mode) {
1078 FLAC__stream_decoder_get_decode_position(decoder_session->decoder, &dpos);
1079 frame_bytes = (unsigned)(dpos-decoder_session->decode_position);
1080 decoder_session->decode_position = dpos;
1083 if(wide_samples > 0) {
1084 decoder_session->samples_processed += wide_samples;
1085 decoder_session->frame_counter++;
1087 if(!(decoder_session->frame_counter & 0x3f))
1088 print_stats(decoder_session);
1090 if(decoder_session->analysis_mode) {
1091 flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->decode_position-frame_bytes, frame_bytes, decoder_session->aopts, fout);
1093 else if(!decoder_session->test_only) {
1094 if(shift && !decoder_session->replaygain.apply) {
1095 for(wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1096 for(channel = 0; channel < channels; channel++)
1097 ((FLAC__int32**)buffer)[channel][wide_sample] <<= shift;/*@@@@@@un-const'ing the buffer is hacky but safe*/
1099 if(decoder_session->replaygain.apply) {
1100 bytes_to_write = FLAC__replaygain_synthesis__apply_gain(
1103 is_unsigned_samples,
1107 bps, /* source_bps */
1108 bps+shift, /* target_bps */
1109 decoder_session->replaygain.scale,
1110 decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */
1111 decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */
1112 &decoder_session->replaygain.dither_context
1115 /* first some special code for common cases */
1116 else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 2 && bps+shift == 16) {
1117 FLAC__int16 *buf1_ = s16buffer + 1;
1119 memcpy(s16buffer, ((FLAC__byte*)(buffer[0]))+2, sizeof(FLAC__int32) * wide_samples - 2);
1121 memcpy(s16buffer, buffer[0], sizeof(FLAC__int32) * wide_samples);
1122 for(sample = 0; sample < wide_samples; sample++, buf1_+=2)
1123 *buf1_ = (FLAC__int16)buffer[1][sample];
1124 bytes_to_write = 4 * sample;
1126 else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 1 && bps+shift == 16) {
1127 FLAC__int16 *buf1_ = s16buffer;
1128 for(sample = 0; sample < wide_samples; sample++)
1129 *buf1_++ = (FLAC__int16)buffer[0][sample];
1130 bytes_to_write = 2 * sample;
1132 /* generic code for the rest */
1133 else if(bps+shift == 16) {
1134 if(is_unsigned_samples) {
1136 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1137 u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1138 u16buffer[sample++] = (FLAC__uint16)(buffer[1][wide_sample] + 0x8000);
1141 else if(channels == 1) {
1142 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1143 u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1145 else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1146 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1147 for(channel = 0; channel < channels; channel++, sample++)
1148 u16buffer[sample] = (FLAC__uint16)(buffer[channel][wide_sample] + 0x8000);
1153 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1154 s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1155 s16buffer[sample++] = (FLAC__int16)(buffer[1][wide_sample]);
1158 else if(channels == 1) {
1159 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1160 s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1162 else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1163 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1164 for(channel = 0; channel < channels; channel++, sample++)
1165 s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]);
1168 if(is_big_endian != is_big_endian_host_) {
1170 const unsigned bytes = sample * 2;
1171 for(byte = 0; byte < bytes; byte += 2) {
1172 tmp = u8buffer[byte];
1173 u8buffer[byte] = u8buffer[byte+1];
1174 u8buffer[byte+1] = tmp;
1177 bytes_to_write = 2 * sample;
1179 else if(bps+shift == 24) {
1180 if(is_unsigned_samples) {
1181 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1182 for(channel = 0; channel < channels; channel++, sample++)
1183 u32buffer[sample] = buffer[channel][wide_sample] + 0x800000;
1186 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1187 for(channel = 0; channel < channels; channel++, sample++)
1188 s32buffer[sample] = buffer[channel][wide_sample];
1190 if(is_big_endian != is_big_endian_host_) {
1192 const unsigned bytes = sample * 4;
1193 for(byte = 0; byte < bytes; byte += 4) {
1194 tmp = u8buffer[byte];
1195 u8buffer[byte] = u8buffer[byte+3];
1196 u8buffer[byte+3] = tmp;
1197 tmp = u8buffer[byte+1];
1198 u8buffer[byte+1] = u8buffer[byte+2];
1199 u8buffer[byte+2] = tmp;
1204 const unsigned bytes = sample * 4;
1205 for(lbyte = byte = 0; byte < bytes; ) {
1207 u8buffer[lbyte++] = u8buffer[byte++];
1208 u8buffer[lbyte++] = u8buffer[byte++];
1209 u8buffer[lbyte++] = u8buffer[byte++];
1214 const unsigned bytes = sample * 4;
1215 for(lbyte = byte = 0; byte < bytes; ) {
1216 u8buffer[lbyte++] = u8buffer[byte++];
1217 u8buffer[lbyte++] = u8buffer[byte++];
1218 u8buffer[lbyte++] = u8buffer[byte++];
1222 bytes_to_write = 3 * sample;
1224 else if(bps+shift == 8) {
1225 if(is_unsigned_samples) {
1226 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1227 for(channel = 0; channel < channels; channel++, sample++)
1228 u8buffer[sample] = (FLAC__uint8)(buffer[channel][wide_sample] + 0x80);
1231 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1232 for(channel = 0; channel < channels; channel++, sample++)
1233 s8buffer[sample] = (FLAC__int8)(buffer[channel][wide_sample]);
1235 bytes_to_write = sample;
1239 /* double protection */
1240 decoder_session->abort_flag = true;
1241 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1245 if(bytes_to_write > 0) {
1246 if(flac__utils_fwrite(u8buffer, 1, bytes_to_write, fout) != bytes_to_write) {
1247 /* if a pipe closed when writing to stdout, we let it go without an error message */
1248 if(errno == EPIPE && decoder_session->fout == stdout)
1249 decoder_session->aborting_due_to_until = true;
1250 decoder_session->abort_flag = true;
1251 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1254 return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
1257 void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
1259 DecoderSession *decoder_session = (DecoderSession*)client_data;
1261 if(decoder_session->analysis_mode)
1262 FLAC__stream_decoder_get_decode_position(decoder, &decoder_session->decode_position);
1264 if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
1265 FLAC__uint64 skip, until;
1266 decoder_session->got_stream_info = true;
1267 decoder_session->has_md5sum = memcmp(metadata->data.stream_info.md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16);
1268 decoder_session->bps = metadata->data.stream_info.bits_per_sample;
1269 decoder_session->channels = metadata->data.stream_info.channels;
1270 decoder_session->sample_rate = metadata->data.stream_info.sample_rate;
1272 flac__utils_canonicalize_skip_until_specification(decoder_session->skip_specification, decoder_session->sample_rate);
1273 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1274 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1276 /* remember, metadata->data.stream_info.total_samples can be 0, meaning 'unknown' */
1277 if(metadata->data.stream_info.total_samples > 0 && skip >= metadata->data.stream_info.total_samples) {
1278 flac__utils_printf(stderr, 1, "%s: ERROR trying to --skip more samples than in stream\n", decoder_session->inbasefilename);
1279 decoder_session->abort_flag = true;
1282 else if(metadata->data.stream_info.total_samples == 0 && skip > 0) {
1283 flac__utils_printf(stderr, 1, "%s: ERROR, can't --skip when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1284 decoder_session->abort_flag = true;
1287 FLAC__ASSERT(skip == 0 || 0 == decoder_session->cue_specification);
1288 decoder_session->total_samples = metadata->data.stream_info.total_samples - skip;
1290 /* note that we use metadata->data.stream_info.total_samples instead of decoder_session->total_samples */
1291 if(!canonicalize_until_specification(decoder_session->until_specification, decoder_session->inbasefilename, decoder_session->sample_rate, skip, metadata->data.stream_info.total_samples)) {
1292 decoder_session->abort_flag = true;
1295 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1296 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1299 FLAC__ASSERT(decoder_session->total_samples != 0);
1300 FLAC__ASSERT(0 == decoder_session->cue_specification);
1301 decoder_session->total_samples -= (metadata->data.stream_info.total_samples - until);
1304 if(decoder_session->bps < 4 || decoder_session->bps > 24) {
1305 flac__utils_printf(stderr, 1, "%s: ERROR: bits per sample is %u, must be 4-24\n", decoder_session->inbasefilename, decoder_session->bps);
1306 decoder_session->abort_flag = true;
1310 else if(metadata->type == FLAC__METADATA_TYPE_CUESHEET) {
1311 /* remember, at this point, decoder_session->total_samples can be 0, meaning 'unknown' */
1312 if(decoder_session->total_samples == 0) {
1313 flac__utils_printf(stderr, 1, "%s: ERROR can't use --cue when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1314 decoder_session->abort_flag = true;
1318 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);
1320 FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1321 FLAC__ASSERT(decoder_session->skip_specification->value_is_samples);
1323 FLAC__ASSERT(!decoder_session->until_specification->is_relative);
1324 FLAC__ASSERT(decoder_session->until_specification->value_is_samples);
1326 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1327 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1328 FLAC__ASSERT((FLAC__uint64)decoder_session->until_specification->value.samples <= decoder_session->total_samples);
1329 FLAC__ASSERT(decoder_session->skip_specification->value.samples <= decoder_session->until_specification->value.samples);
1331 decoder_session->total_samples = decoder_session->until_specification->value.samples - decoder_session->skip_specification->value.samples;
1333 else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
1334 if (decoder_session->replaygain.spec.apply) {
1335 double reference, gain, peak;
1336 if (!(decoder_session->replaygain.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, /*strict=*/false, &reference, &gain, &peak))) {
1337 flac__utils_printf(stderr, 1, "%s: WARNING: can't get %s (or even %s) ReplayGain tags\n", decoder_session->inbasefilename, decoder_session->replaygain.spec.use_album_gain? "album":"track", decoder_session->replaygain.spec.use_album_gain? "track":"album");
1338 if(decoder_session->treat_warnings_as_errors) {
1339 decoder_session->abort_flag = true;
1344 const char *ls[] = { "no", "peak", "hard" };
1345 const char *ns[] = { "no", "low", "medium", "high" };
1346 decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK);
1347 FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32);
1348 FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping);
1349 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]);
1350 flac__utils_printf(stderr, 1, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename);
1351 /* don't check if(decoder_session->treat_warnings_as_errors) because the user explicitly asked for it */
1354 (void)flac__utils_get_channel_mask_tag(metadata, &decoder_session->channel_mask);
1358 void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
1360 DecoderSession *decoder_session = (DecoderSession*)client_data;
1362 if(!decoder_session->error_callback_suppress_messages)
1363 flac__utils_printf(stderr, 1, "%s: *** Got error code %d:%s\n", decoder_session->inbasefilename, status, FLAC__StreamDecoderErrorStatusString[status]);
1364 if(!decoder_session->continue_through_decode_errors) {
1365 /* if we got a sync error while looking for metadata, either it's not a FLAC file (more likely) or the file is corrupted */
1367 !decoder_session->error_callback_suppress_messages &&
1368 status == FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC &&
1369 FLAC__stream_decoder_get_state(decoder) == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
1371 flac__utils_printf(stderr, 1,
1373 "The input file is either not a FLAC file or is corrupted. If you are\n"
1374 "convinced it is a FLAC file, you can rerun the same command and add the\n"
1375 "-F parameter to try and recover as much as possible from the file.\n"
1377 decoder_session->error_callback_suppress_messages = true;
1379 else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
1380 decoder_session->aborting_due_to_unparseable = true;
1381 decoder_session->abort_flag = true;
1385 void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status)
1387 const int ilen = strlen(d->inbasefilename) + 1;
1389 flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1391 flac__utils_printf(stderr, 1, "%*s init status = %s\n", ilen, "", FLAC__StreamDecoderInitStatusString[init_status]);
1393 /* print out some more info for some errors: */
1394 if (init_status == FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE) {
1395 flac__utils_printf(stderr, 1,
1397 "An error occurred opening the input file; it is likely that it does not exist\n"
1398 "or is not readable.\n"
1403 void print_error_with_state(const DecoderSession *d, const char *message)
1405 const int ilen = strlen(d->inbasefilename) + 1;
1407 flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1408 flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", FLAC__stream_decoder_get_resolved_state_string(d->decoder));
1410 /* print out some more info for some errors: */
1411 if (d->aborting_due_to_unparseable) {
1412 flac__utils_printf(stderr, 1,
1414 "The FLAC stream may have been created by a more advanced encoder. Try\n"
1415 " metaflac --show-vendor-tag %s\n"
1416 "If the version number is greater than %s, this decoder is probably\n"
1417 "not able to decode the file. If the version number is not, the file\n"
1418 "may be corrupted, or you may have found a bug. In this case please\n"
1419 "submit a bug report to\n"
1420 " http://sourceforge.net/bugs/?func=addbug&group_id=13478\n"
1421 "Make sure to use the \"Monitor\" feature to monitor the bug status.\n",
1422 d->inbasefilename, FLAC__VERSION_STRING
1427 void print_stats(const DecoderSession *decoder_session)
1429 if(flac__utils_verbosity_ >= 2) {
1430 #if defined _MSC_VER || defined __MINGW32__
1431 /* with MSVC you have to spoon feed it the casting */
1432 const double progress = (double)(FLAC__int64)decoder_session->samples_processed / (double)(FLAC__int64)decoder_session->total_samples * 100.0;
1434 const double progress = (double)decoder_session->samples_processed / (double)decoder_session->total_samples * 100.0;
1436 if(decoder_session->total_samples > 0) {
1437 fprintf(stderr, "\r%s: %s%u%% complete",
1438 decoder_session->inbasefilename,
1439 decoder_session->test_only? "testing, " : decoder_session->analysis_mode? "analyzing, " : "",
1440 (unsigned)floor(progress + 0.5)
1444 fprintf(stderr, "\r%s: %s %u samples",
1445 decoder_session->inbasefilename,
1446 decoder_session->test_only? "tested" : decoder_session->analysis_mode? "analyzed" : "wrote",
1447 (unsigned)decoder_session->samples_processed