1 /* flac - Command-line FLAC encoder/decoder
2 * Copyright (C) 2000-2009 Josh Coalson
3 * Copyright (C) 2011-2013 Xiph.Org Foundation
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #include <math.h> /* for floor() */
26 #include <stdio.h> /* for FILE etc. */
27 #include <string.h> /* for strcmp(), strerror() */
29 #include "share/grabbag.h"
30 #include "share/replaygain_synthesis.h"
31 #include "share/compat.h"
37 FLAC__bool use_first_serial_number;
42 FLAC__bool treat_warnings_as_errors;
43 FLAC__bool continue_through_decode_errors;
44 FLAC__bool channel_map_none;
47 replaygain_synthesis_spec_t spec;
48 FLAC__bool apply; /* 'spec.apply' is just a request; this 'apply' means we actually parsed the RG tags and are ready to go */
50 DitherContext dither_context;
54 FLAC__bool analysis_mode;
55 analysis_options aopts;
56 utils__SkipUntilSpecification *skip_specification;
57 utils__SkipUntilSpecification *until_specification; /* a canonicalized value of 0 mean end-of-stream (i.e. --until=-0) */
58 utils__CueSpecification *cue_specification;
60 const char *inbasefilename;
61 const char *infilename;
62 const char *outfilename;
64 FLAC__uint64 samples_processed;
65 unsigned frame_counter;
66 FLAC__bool abort_flag;
67 FLAC__bool aborting_due_to_until; /* true if we intentionally abort decoding prematurely because we hit the --until point */
68 FLAC__bool aborting_due_to_unparseable; /* true if we abort decoding because we hit an unparseable frame */
69 FLAC__bool error_callback_suppress_messages; /* turn on to prevent repeating messages from the error callback */
71 FLAC__bool iff_headers_need_fixup;
73 FLAC__bool is_big_endian;
74 FLAC__bool is_unsigned_samples;
75 FLAC__bool got_stream_info;
76 FLAC__bool has_md5sum;
77 FLAC__uint64 total_samples;
81 FLAC__uint32 channel_mask;
83 /* these are used only in analyze mode */
84 FLAC__uint64 decode_position;
86 FLAC__StreamDecoder *decoder;
90 foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */
91 FLAC__off_t fm_offset1, fm_offset2, fm_offset3;
95 static FLAC__bool is_big_endian_host_;
101 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);
102 static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred);
103 static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, const char *infilename);
104 static FLAC__bool DecoderSession_process(DecoderSession *d);
105 static int DecoderSession_finish_ok(DecoderSession *d);
106 static int DecoderSession_finish_error(DecoderSession *d);
107 static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input);
108 static FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples);
109 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);
110 static FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate);
111 static FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val);
112 static FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val);
113 static FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val);
114 static FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val);
115 static FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val);
116 static FLAC__bool write_sane_extended(FILE *f, unsigned val);
117 static FLAC__bool fixup_iff_headers(DecoderSession *d);
118 static FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
119 static void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
120 static void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
121 static void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status);
122 static void print_error_with_state(const DecoderSession *d, const char *message);
123 static void print_stats(const DecoderSession *decoder_session);
129 int flac__decode_file(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, decode_options_t options)
131 DecoderSession decoder_session;
134 options.format == FORMAT_WAVE ||
135 options.format == FORMAT_WAVE64 ||
136 options.format == FORMAT_RF64 ||
137 options.format == FORMAT_AIFF ||
138 options.format == FORMAT_AIFF_C ||
139 options.format == FORMAT_RAW
142 if(options.format == FORMAT_RAW) {
143 decoder_session.is_big_endian = options.format_options.raw.is_big_endian;
144 decoder_session.is_unsigned_samples = options.format_options.raw.is_unsigned_samples;
148 DecoderSession_construct(
152 options.use_first_serial_number,
153 options.serial_number,
156 /*use_first_serial_number=*/false,
160 options.treat_warnings_as_errors,
161 options.continue_through_decode_errors,
162 options.channel_map_none,
163 options.replaygain_synthesis_spec,
166 &options.skip_specification,
167 &options.until_specification,
168 options.has_cue_specification? &options.cue_specification : 0,
169 options.format == FORMAT_RAW? NULL : options.format_options.iff.foreign_metadata,
177 if(!DecoderSession_init_decoder(&decoder_session, infilename))
178 return DecoderSession_finish_error(&decoder_session);
180 if(!DecoderSession_process(&decoder_session))
181 return DecoderSession_finish_error(&decoder_session);
183 return DecoderSession_finish_ok(&decoder_session);
186 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)
190 d->use_first_serial_number = use_first_serial_number;
191 d->serial_number = serial_number;
194 (void)use_first_serial_number;
199 d->treat_warnings_as_errors = treat_warnings_as_errors;
200 d->continue_through_decode_errors = continue_through_decode_errors;
201 d->channel_map_none = channel_map_none;
202 d->replaygain.spec = replaygain_synthesis_spec;
203 d->replaygain.apply = false;
204 d->replaygain.scale = 0.0;
205 /* d->replaygain.dither_context gets initialized later once we know the sample resolution */
206 d->test_only = (0 == outfilename);
207 d->analysis_mode = analysis_mode;
209 d->skip_specification = skip_specification;
210 d->until_specification = until_specification;
211 d->cue_specification = cue_specification;
213 d->inbasefilename = grabbag__file_get_basename(infilename);
214 d->infilename = infilename;
215 d->outfilename = outfilename;
217 d->samples_processed = 0;
218 d->frame_counter = 0;
219 d->abort_flag = false;
220 d->aborting_due_to_until = false;
221 d->aborting_due_to_unparseable = false;
222 d->error_callback_suppress_messages = false;
224 d->iff_headers_need_fixup = false;
226 d->total_samples = 0;
227 d->got_stream_info = false;
228 d->has_md5sum = false;
234 d->decode_position = 0;
238 d->fout = 0; /* initialized with an open file later if necessary */
240 d->foreign_metadata = foreign_metadata;
242 FLAC__ASSERT(!(d->test_only && d->analysis_mode));
245 if(0 == strcmp(outfilename, "-")) {
246 d->fout = grabbag__file_get_binary_stdout();
249 if(0 == (d->fout = flac_fopen(outfilename, "wb"))) {
250 flac__utils_printf(stderr, 1, "%s: ERROR: can't open output file %s: %s\n", d->inbasefilename, outfilename, strerror(errno));
251 DecoderSession_destroy(d, /*error_occurred=*/true);
258 flac__analyze_init(aopts);
263 void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred)
265 if(0 != d->fout && d->fout != stdout) {
268 flac_unlink(d->outfilename);
272 FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, const char *infilename)
274 FLAC__StreamDecoderInitStatus init_status;
275 FLAC__uint32 test = 1;
277 is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true;
279 if(!decoder_session->analysis_mode && !decoder_session->test_only && decoder_session->foreign_metadata) {
281 if(!flac__foreign_metadata_read_from_flac(decoder_session->foreign_metadata, infilename, &error)) {
282 flac__utils_printf(stderr, 1, "%s: ERROR reading foreign metadata: %s\n", decoder_session->inbasefilename, error);
287 decoder_session->decoder = FLAC__stream_decoder_new();
289 if(0 == decoder_session->decoder) {
290 flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename);
294 FLAC__stream_decoder_set_md5_checking(decoder_session->decoder, true);
295 if (0 != decoder_session->cue_specification)
296 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_CUESHEET);
297 if (decoder_session->replaygain.spec.apply)
298 FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_VORBIS_COMMENT);
301 if(decoder_session->is_ogg) {
302 if(!decoder_session->use_first_serial_number)
303 FLAC__stream_decoder_set_ogg_serial_number(decoder_session->decoder, decoder_session->serial_number);
304 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);
309 init_status = FLAC__stream_decoder_init_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session);
312 if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
313 print_error_with_init_status(decoder_session, "ERROR initializing decoder", init_status);
320 FLAC__bool DecoderSession_process(DecoderSession *d)
322 if(!FLAC__stream_decoder_process_until_end_of_metadata(d->decoder)) {
323 flac__utils_printf(stderr, 2, "\n");
324 print_error_with_state(d, "ERROR while decoding metadata");
327 if(FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM) {
328 flac__utils_printf(stderr, 2, "\n");
329 print_error_with_state(d, "ERROR during metadata decoding");
330 if(!d->continue_through_decode_errors)
337 /* set channel mapping */
338 /* currently FLAC order matches SMPTE/WAVEFORMATEXTENSIBLE order, so no reordering is necessary; see encode.c */
339 /* only the channel mask must be set if it was not already picked up from the WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag */
340 if(!d->channel_map_none && d->channel_mask == 0) {
341 if(d->channels == 1) {
342 d->channel_mask = 0x0001;
344 else if(d->channels == 2) {
345 d->channel_mask = 0x0003;
347 else if(d->channels == 3) {
348 d->channel_mask = 0x0007;
350 else if(d->channels == 4) {
351 d->channel_mask = 0x0033;
353 else if(d->channels == 5) {
354 d->channel_mask = 0x0607;
356 else if(d->channels == 6) {
357 d->channel_mask = 0x060f;
359 else if(d->channels == 7) {
360 d->channel_mask = 0x070f;
362 else if(d->channels == 8) {
363 d->channel_mask = 0x063f;
367 /* write the WAVE/AIFF headers if necessary */
368 if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
369 if(!write_iff_headers(d->fout, d, d->total_samples)) {
370 d->abort_flag = true;
375 if(d->skip_specification->value.samples > 0) {
376 const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples;
378 if(!FLAC__stream_decoder_seek_absolute(d->decoder, skip)) {
379 print_error_with_state(d, "ERROR seeking while skipping bytes");
383 if(!FLAC__stream_decoder_process_until_end_of_stream(d->decoder) && !d->aborting_due_to_until) {
384 flac__utils_printf(stderr, 2, "\n");
385 print_error_with_state(d, "ERROR while decoding data");
386 if(!d->continue_through_decode_errors)
390 (d->abort_flag && !(d->aborting_due_to_until || d->continue_through_decode_errors)) ||
391 (FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM && !d->aborting_due_to_until)
393 flac__utils_printf(stderr, 2, "\n");
394 print_error_with_state(d, "ERROR during decoding");
398 /* write padding bytes for alignment if necessary */
399 if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
400 const FLAC__uint64 data_size = d->total_samples * d->channels * ((d->bps+7)/8);
402 if(d->format != FORMAT_WAVE64) {
403 padding = (unsigned)(data_size & 1);
406 /* 8-byte alignment for Wave64 */
407 padding = (8 - (unsigned)(data_size & 7)) & 7;
409 for( ; padding > 0; --padding) {
410 if(flac__utils_fwrite("\000", 1, 1, d->fout) != 1) {
411 print_error_with_state(
413 d->format == FORMAT_WAVE? "ERROR writing pad byte to WAVE data chunk" :
414 d->format == FORMAT_WAVE64? "ERROR writing pad bytes to WAVE64 data chunk" :
415 d->format == FORMAT_RF64? "ERROR writing pad byte to RF64 data chunk" :
416 "ERROR writing pad byte to AIFF SSND chunk"
426 int DecoderSession_finish_ok(DecoderSession *d)
428 FLAC__bool ok = true, md5_failure = false;
431 md5_failure = !FLAC__stream_decoder_finish(d->decoder) && !d->aborting_due_to_until;
433 FLAC__stream_decoder_delete(d->decoder);
436 flac__analyze_finish(d->aopts);
438 stats_print_name(1, d->inbasefilename);
439 flac__utils_printf(stderr, 1, "ERROR, MD5 signature mismatch\n");
440 ok = d->continue_through_decode_errors;
443 if(!d->got_stream_info) {
444 stats_print_name(1, d->inbasefilename);
445 flac__utils_printf(stderr, 1, "WARNING, cannot check MD5 signature since there was no STREAMINFO\n");
446 ok = !d->treat_warnings_as_errors;
448 else if(!d->has_md5sum) {
449 stats_print_name(1, d->inbasefilename);
450 flac__utils_printf(stderr, 1, "WARNING, cannot check MD5 signature since it was unset in the STREAMINFO\n");
451 ok = !d->treat_warnings_as_errors;
453 stats_print_name(2, d->inbasefilename);
454 flac__utils_printf(stderr, 2, "%s \n", d->test_only? "ok ":d->analysis_mode?"done ":"done");
456 DecoderSession_destroy(d, /*error_occurred=*/!ok);
457 if(!d->analysis_mode && !d->test_only && d->format != FORMAT_RAW) {
458 if(d->iff_headers_need_fixup || (!d->got_stream_info && strcmp(d->outfilename, "-"))) {
459 if(!fixup_iff_headers(d))
462 if(d->foreign_metadata) {
464 if(!flac__foreign_metadata_write_to_iff(d->foreign_metadata, d->infilename, d->outfilename, d->fm_offset1, d->fm_offset2, d->fm_offset3, &error)) {
465 flac__utils_printf(stderr, 1, "ERROR updating foreign metadata from %s to %s: %s\n", d->infilename, d->outfilename, error);
473 int DecoderSession_finish_error(DecoderSession *d)
476 (void)FLAC__stream_decoder_finish(d->decoder);
477 FLAC__stream_decoder_delete(d->decoder);
480 flac__analyze_finish(d->aopts);
481 DecoderSession_destroy(d, /*error_occurred=*/true);
485 FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input)
487 /* convert from mm:ss.sss to sample number if necessary */
488 flac__utils_canonicalize_skip_until_specification(spec, sample_rate);
490 /* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */
491 if(spec->is_relative && spec->value.samples == 0) {
492 spec->is_relative = false;
496 /* in any other case the total samples in the input must be known */
497 if(total_samples_in_input == 0) {
498 flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when FLAC metadata has total sample count of 0\n", inbasefilename);
502 FLAC__ASSERT(spec->value_is_samples);
504 /* convert relative specifications to absolute */
505 if(spec->is_relative) {
506 if(spec->value.samples <= 0)
507 spec->value.samples += (FLAC__int64)total_samples_in_input;
509 spec->value.samples += skip;
510 spec->is_relative = false;
514 if(spec->value.samples < 0) {
515 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename);
518 if((FLAC__uint64)spec->value.samples <= skip) {
519 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename);
522 if((FLAC__uint64)spec->value.samples > total_samples_in_input) {
523 flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename);
530 FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples)
532 const FileFormat format = decoder_session->format;
533 const char *fmt_desc =
534 format==FORMAT_WAVE? "WAVE" :
535 format==FORMAT_WAVE64? "Wave64" :
536 format==FORMAT_RF64? "RF64" :
538 const FLAC__bool is_waveformatextensible =
539 (format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) &&
541 decoder_session->channel_mask == 2 ||
542 decoder_session->channel_mask > 3 ||
543 decoder_session->bps%8 ||
544 decoder_session->channels > 2
546 const FLAC__uint64 data_size = samples * decoder_session->channels * ((decoder_session->bps+7)/8);
547 const FLAC__uint64 aligned_data_size =
548 format == FORMAT_WAVE64?
549 (data_size+7) & (~(FLAC__uint64)7) :
550 (data_size+1) & (~(FLAC__uint64)1);
552 FLAC__uint64 iff_size;
553 unsigned foreign_metadata_size = 0; /* size of all non-audio non-fmt/COMM foreign metadata chunks */
554 foreign_metadata_t *fm = decoder_session->foreign_metadata;
558 format == FORMAT_WAVE ||
559 format == FORMAT_WAVE64 ||
560 format == FORMAT_RF64 ||
561 format == FORMAT_AIFF ||
562 format == FORMAT_AIFF_C
567 flac__utils_printf(stderr, 1, "%s: WARNING, don't have accurate sample count available for %s header.\n", decoder_session->inbasefilename, fmt_desc);
568 flac__utils_printf(stderr, 1, " Generated %s file will have a data chunk size of 0. Try\n", fmt_desc);
569 flac__utils_printf(stderr, 1, " decoding directly to a file instead.\n");
570 if(decoder_session->treat_warnings_as_errors)
574 decoder_session->iff_headers_need_fixup = true;
579 FLAC__ASSERT(fm->format_block);
580 FLAC__ASSERT(fm->audio_block);
581 FLAC__ASSERT(fm->format_block < fm->audio_block);
582 /* calc foreign metadata size; we always skip the first chunk, ds64 chunk, format chunk, and sound chunk since we write our own */
583 for(i = format==FORMAT_RF64?2:1; i < fm->num_blocks; i++) {
584 if(i != fm->format_block && i != fm->audio_block)
585 foreign_metadata_size += fm->blocks[i].size;
591 else if(format == FORMAT_WAVE || format == FORMAT_RF64)
592 /* 4 for WAVE form bytes */
593 /* +{36,0} for ds64 chunk */
594 /* +8+{40,16} for fmt chunk header and body */
595 /* +8 for data chunk header */
596 iff_size = 4 + (format==FORMAT_RF64?36:0) + 8+(is_waveformatextensible?40:16) + 8 + foreign_metadata_size + aligned_data_size;
597 else if(format == FORMAT_WAVE64)
598 /* 16+8 for RIFF GUID and size field */
599 /* +16 for WAVE GUID */
600 /* +16+8+{40,16} for fmt chunk header (GUID and size field) and body */
601 /* +16+8 for data chunk header (GUID and size field) */
602 iff_size = 16+8 + 16 + 16+8+(is_waveformatextensible?40:16) + 16+8 + foreign_metadata_size + aligned_data_size;
604 iff_size = 46 + foreign_metadata_size + aligned_data_size;
606 if(format != FORMAT_WAVE64 && format != FORMAT_RF64 && iff_size >= 0xFFFFFFF4) {
607 flac__utils_printf(stderr, 1, "%s: ERROR: stream is too big to fit in a single %s file\n", decoder_session->inbasefilename, fmt_desc);
611 if(format == FORMAT_WAVE || format == FORMAT_WAVE64 || format == FORMAT_RF64) {
615 if(flac__utils_fwrite("RIFF", 1, 4, f) != 4)
617 if(!write_little_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
619 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
623 /* RIFF GUID 66666972-912E-11CF-A5D6-28DB04C10000 */
624 if(flac__utils_fwrite("\x72\x69\x66\x66\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00", 1, 16, f) != 16)
626 if(!write_little_endian_uint64(f, iff_size))
628 /* WAVE GUID 65766177-ACF3-11D3-8CD1-00C04F8EDB8A */
629 if(flac__utils_fwrite("\x77\x61\x76\x65\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
633 if(flac__utils_fwrite("RF64", 1, 4, f) != 4)
635 if(!write_little_endian_uint32(f, 0xffffffff))
637 if(flac__utils_fwrite("WAVE", 1, 4, f) != 4)
644 /* ds64 chunk for RF64 */
645 if(format == FORMAT_RF64) {
646 if(flac__utils_fwrite("ds64", 1, 4, f) != 4)
649 if(!write_little_endian_uint32(f, 28)) /* chunk size */
652 if(!write_little_endian_uint64(f, iff_size))
655 if(!write_little_endian_uint64(f, data_size))
658 if(!write_little_endian_uint64(f, samples)) /*@@@@@@ correct? */
661 if(!write_little_endian_uint32(f, 0)) /* table size */
665 decoder_session->fm_offset1 = ftello(f);
668 /* seek forward to {allocate} or {skip over already-written chunks} before "fmt " */
669 for(i = format==FORMAT_RF64?2:1; i < fm->format_block; i++) {
670 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
671 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"fmt \"\n", decoder_session->inbasefilename);
677 if(format != FORMAT_WAVE64) {
678 if(flac__utils_fwrite("fmt ", 1, 4, f) != 4)
680 if(!write_little_endian_uint32(f, is_waveformatextensible? 40 : 16)) /* chunk size */
684 /* fmt GUID 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A */
685 if(flac__utils_fwrite("\x66\x6D\x74\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
687 /* chunk size (+16+8 for GUID and size fields) */
688 if(!write_little_endian_uint64(f, 16+8+(is_waveformatextensible?40:16)))
692 if(!write_riff_wave_fmt_chunk_body(f, is_waveformatextensible, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate, decoder_session->channel_mask))
695 decoder_session->fm_offset2 = ftello(f);
698 /* seek forward to {allocate} or {skip over already-written chunks} after "fmt " but before "data" */
699 for(i = fm->format_block+1; i < fm->audio_block; i++) {
700 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
701 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"fmt \"\n", decoder_session->inbasefilename);
707 if(format != FORMAT_WAVE64) {
708 if(flac__utils_fwrite("data", 1, 4, f) != 4)
710 if(!write_little_endian_uint32(f, format==FORMAT_RF64? 0xffffffff : (FLAC__uint32)data_size))
714 /* data GUID 61746164-ACF3-11D3-8CD1-00C04F8EDB8A */
715 if(flac__utils_fwrite("\x64\x61\x74\x61\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 1, 16, f) != 16)
717 /* +16+8 for GUID and size fields */
718 if(!write_little_endian_uint64(f, 16+8 + data_size))
722 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
725 if(flac__utils_fwrite("FORM", 1, 4, f) != 4)
728 if(!write_big_endian_uint32(f, (FLAC__uint32)iff_size)) /* filesize-8 */
731 if(flac__utils_fwrite("AIFF", 1, 4, f) != 4)
734 decoder_session->fm_offset1 = ftello(f);
737 /* seek forward to {allocate} or {skip over already-written chunks} before "COMM" */
738 for(i = 1; i < fm->format_block; i++) {
739 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
740 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"COMM\"\n", decoder_session->inbasefilename);
746 if(!write_aiff_form_comm_chunk(f, samples, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate))
749 decoder_session->fm_offset2 = ftello(f);
752 /* seek forward to {allocate} or {skip over already-written chunks} after "COMM" but before "SSND" */
753 for(i = fm->format_block+1; i < fm->audio_block; i++) {
754 if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) {
755 flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"COMM\"\n", decoder_session->inbasefilename);
761 if(flac__utils_fwrite("SSND", 1, 4, f) != 4)
764 if(!write_big_endian_uint32(f, (FLAC__uint32)data_size + 8)) /* data size */
767 if(!write_big_endian_uint32(f, 0/*offset_size*/))
770 if(!write_big_endian_uint32(f, 0/*block_size*/))
773 decoder_session->fm_offset3 = ftello(f) + aligned_data_size;
779 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)
781 if(!write_little_endian_uint16(f, (FLAC__uint16)(is_waveformatextensible? 65534 : 1))) /* compression code */
784 if(!write_little_endian_uint16(f, (FLAC__uint16)channels))
787 if(!write_little_endian_uint32(f, sample_rate))
790 if(!write_little_endian_uint32(f, sample_rate * channels * ((bps+7) / 8)))
793 if(!write_little_endian_uint16(f, (FLAC__uint16)(channels * ((bps+7) / 8)))) /* block align */
796 if(!write_little_endian_uint16(f, (FLAC__uint16)(((bps+7)/8)*8))) /* bits per sample */
799 if(is_waveformatextensible) {
800 if(!write_little_endian_uint16(f, (FLAC__uint16)22)) /* cbSize */
803 if(!write_little_endian_uint16(f, (FLAC__uint16)bps)) /* validBitsPerSample */
806 if(!write_little_endian_uint32(f, channel_mask))
809 /* GUID = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} */
810 if(flac__utils_fwrite("\x01\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xaa\x00\x38\x9b\x71", 1, 16, f) != 16)
817 FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate)
819 FLAC__ASSERT(samples <= 0xffffffff);
821 if(flac__utils_fwrite("COMM", 1, 4, f) != 4)
824 if(!write_big_endian_uint32(f, 18)) /* chunk size = 18 */
827 if(!write_big_endian_uint16(f, (FLAC__uint16)channels))
830 if(!write_big_endian_uint32(f, (FLAC__uint32)samples))
833 if(!write_big_endian_uint16(f, (FLAC__uint16)bps))
836 if(!write_sane_extended(f, sample_rate))
842 FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val)
844 FLAC__byte *b = (FLAC__byte*)(&val);
845 if(is_big_endian_host_) {
847 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
849 return flac__utils_fwrite(b, 1, 2, f) == 2;
852 FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val)
854 FLAC__byte *b = (FLAC__byte*)(&val);
855 if(is_big_endian_host_) {
857 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
858 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
860 return flac__utils_fwrite(b, 1, 4, f) == 4;
863 FLAC__bool write_little_endian_uint64(FILE *f, FLAC__uint64 val)
865 FLAC__byte *b = (FLAC__byte*)(&val);
866 if(is_big_endian_host_) {
868 tmp = b[7]; b[7] = b[0]; b[0] = tmp;
869 tmp = b[6]; b[6] = b[1]; b[1] = tmp;
870 tmp = b[5]; b[5] = b[2]; b[2] = tmp;
871 tmp = b[4]; b[4] = b[3]; b[3] = tmp;
873 return flac__utils_fwrite(b, 1, 8, f) == 8;
876 FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val)
878 FLAC__byte *b = (FLAC__byte*)(&val);
879 if(!is_big_endian_host_) {
881 tmp = b[1]; b[1] = b[0]; b[0] = tmp;
883 return flac__utils_fwrite(b, 1, 2, f) == 2;
886 FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val)
888 FLAC__byte *b = (FLAC__byte*)(&val);
889 if(!is_big_endian_host_) {
891 tmp = b[3]; b[3] = b[0]; b[0] = tmp;
892 tmp = b[2]; b[2] = b[1]; b[1] = tmp;
894 return flac__utils_fwrite(b, 1, 4, f) == 4;
897 FLAC__bool write_sane_extended(FILE *f, unsigned val)
898 /* Write to 'f' a SANE extended representation of 'val'. Return false if
899 * the write succeeds; return true otherwise.
901 * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits
902 * of exponent, and 64 bits of significand (mantissa). Unlike most IEEE-754
903 * representations, it does not imply a 1 above the MSB of the significand.
909 unsigned int shift, exponent;
911 FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */
913 for(shift= 0U; (val>>(31-shift))==0U; ++shift)
916 exponent= 63U-(shift+32U); /* add 32 for unused second word */
918 if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF)))
920 if(!write_big_endian_uint32(f, val))
922 if(!write_big_endian_uint32(f, 0)) /* unused second word */
928 FLAC__bool fixup_iff_headers(DecoderSession *d)
930 const char *fmt_desc =
931 d->format==FORMAT_WAVE? "WAVE" :
932 d->format==FORMAT_WAVE64? "Wave64" :
933 d->format==FORMAT_RF64? "RF64" :
935 FILE *f = flac_fopen(d->outfilename, "r+b"); /* stream is positioned at beginning of file */
938 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));
942 if(!write_iff_headers(f, d, d->samples_processed)) {
951 FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
953 DecoderSession *decoder_session = (DecoderSession*)client_data;
954 FILE *fout = decoder_session->fout;
955 const unsigned bps = frame->header.bits_per_sample, channels = frame->header.channels;
956 const unsigned shift = (decoder_session->format != FORMAT_RAW && (bps%8))? 8-(bps%8): 0;
957 FLAC__bool is_big_endian = (
958 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? true : (
959 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? false :
960 decoder_session->is_big_endian
962 FLAC__bool is_unsigned_samples = (
963 decoder_session->format == FORMAT_AIFF || decoder_session->format == FORMAT_AIFF_C ? false : (
964 decoder_session->format == FORMAT_WAVE || decoder_session->format == FORMAT_WAVE64 || decoder_session->format == FORMAT_RF64 ? bps<=8 :
965 decoder_session->is_unsigned_samples
967 unsigned wide_samples = frame->header.blocksize, wide_sample, sample, channel;
968 unsigned frame_bytes = 0;
969 static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)]; /* WATCHOUT: can be up to 2 megs */
970 FLAC__uint8 *u8buffer = (FLAC__uint8 *)s8buffer;
971 FLAC__int16 *s16buffer = (FLAC__int16 *)s8buffer;
972 FLAC__uint16 *u16buffer = (FLAC__uint16 *)s8buffer;
973 FLAC__int32 *s32buffer = (FLAC__int32 *)s8buffer;
974 FLAC__uint32 *u32buffer = (FLAC__uint32 *)s8buffer;
975 size_t bytes_to_write = 0;
979 if(decoder_session->abort_flag)
980 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
982 /* sanity-check the bits-per-sample */
983 if(decoder_session->bps) {
984 if(bps != decoder_session->bps) {
985 if(decoder_session->got_stream_info)
986 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);
988 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);
989 if(!decoder_session->continue_through_decode_errors)
990 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
994 /* must not have gotten STREAMINFO, save the bps from the frame header */
995 FLAC__ASSERT(!decoder_session->got_stream_info);
996 decoder_session->bps = bps;
999 /* sanity-check the #channels */
1000 if(decoder_session->channels) {
1001 if(channels != decoder_session->channels) {
1002 if(decoder_session->got_stream_info)
1003 flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, channels, decoder_session->channels);
1005 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);
1006 if(!decoder_session->continue_through_decode_errors)
1007 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1011 /* must not have gotten STREAMINFO, save the #channels from the frame header */
1012 FLAC__ASSERT(!decoder_session->got_stream_info);
1013 decoder_session->channels = channels;
1016 /* sanity-check the sample rate */
1017 if(decoder_session->sample_rate) {
1018 if(frame->header.sample_rate != decoder_session->sample_rate) {
1019 if(decoder_session->got_stream_info)
1020 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);
1022 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);
1023 if(!decoder_session->continue_through_decode_errors)
1024 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1028 /* must not have gotten STREAMINFO, save the sample rate from the frame header */
1029 FLAC__ASSERT(!decoder_session->got_stream_info);
1030 decoder_session->sample_rate = frame->header.sample_rate;
1034 * limit the number of samples to accept based on --until
1036 FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1037 /* if we never got the total_samples from the metadata, the skip and until specs would never have been canonicalized, so protect against that: */
1038 if(decoder_session->skip_specification->is_relative) {
1039 if(decoder_session->skip_specification->value.samples == 0) /* special case for when no --skip was given */
1040 decoder_session->skip_specification->is_relative = false; /* convert to our meaning of beginning-of-stream */
1042 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);
1043 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1046 if(decoder_session->until_specification->is_relative) {
1047 if(decoder_session->until_specification->value.samples == 0) /* special case for when no --until was given */
1048 decoder_session->until_specification->is_relative = false; /* convert to our meaning of end-of-stream */
1050 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);
1051 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1054 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1055 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1056 if(decoder_session->until_specification->value.samples > 0) {
1057 const FLAC__uint64 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1058 const FLAC__uint64 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1059 const FLAC__uint64 input_samples_passed = skip + decoder_session->samples_processed;
1060 FLAC__ASSERT(until >= input_samples_passed);
1061 if(input_samples_passed + wide_samples > until)
1062 wide_samples = (unsigned)(until - input_samples_passed);
1063 if (wide_samples == 0) {
1064 decoder_session->abort_flag = true;
1065 decoder_session->aborting_due_to_until = true;
1066 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1070 if(decoder_session->analysis_mode) {
1072 FLAC__stream_decoder_get_decode_position(decoder_session->decoder, &dpos);
1073 frame_bytes = (unsigned)(dpos-decoder_session->decode_position);
1074 decoder_session->decode_position = dpos;
1077 if(wide_samples > 0) {
1078 decoder_session->samples_processed += wide_samples;
1079 decoder_session->frame_counter++;
1081 if(!(decoder_session->frame_counter & 0x3f))
1082 print_stats(decoder_session);
1084 if(decoder_session->analysis_mode) {
1085 flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->decode_position-frame_bytes, frame_bytes, decoder_session->aopts, fout);
1087 else if(!decoder_session->test_only) {
1088 if(shift && !decoder_session->replaygain.apply) {
1089 for(wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1090 for(channel = 0; channel < channels; channel++)
1091 ((FLAC__int32**)buffer)[channel][wide_sample] <<= shift;/*@@@@@@un-const'ing the buffer is hacky but safe*/
1093 if(decoder_session->replaygain.apply) {
1094 bytes_to_write = FLAC__replaygain_synthesis__apply_gain(
1097 is_unsigned_samples,
1101 bps, /* source_bps */
1102 bps+shift, /* target_bps */
1103 decoder_session->replaygain.scale,
1104 decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */
1105 decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */
1106 &decoder_session->replaygain.dither_context
1109 /* first some special code for common cases */
1110 else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 2 && bps+shift == 16) {
1111 FLAC__int16 *buf1_ = s16buffer + 1;
1113 memcpy(s16buffer, ((FLAC__byte*)(buffer[0]))+2, sizeof(FLAC__int32) * wide_samples - 2);
1115 memcpy(s16buffer, buffer[0], sizeof(FLAC__int32) * wide_samples);
1116 for(sample = 0; sample < wide_samples; sample++, buf1_+=2)
1117 *buf1_ = (FLAC__int16)buffer[1][sample];
1118 bytes_to_write = 4 * sample;
1120 else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 1 && bps+shift == 16) {
1121 FLAC__int16 *buf1_ = s16buffer;
1122 for(sample = 0; sample < wide_samples; sample++)
1123 *buf1_++ = (FLAC__int16)buffer[0][sample];
1124 bytes_to_write = 2 * sample;
1126 /* generic code for the rest */
1127 else if(bps+shift == 16) {
1128 if(is_unsigned_samples) {
1130 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1131 u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1132 u16buffer[sample++] = (FLAC__uint16)(buffer[1][wide_sample] + 0x8000);
1135 else if(channels == 1) {
1136 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1137 u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000);
1139 else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1140 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1141 for(channel = 0; channel < channels; channel++, sample++)
1142 u16buffer[sample] = (FLAC__uint16)(buffer[channel][wide_sample] + 0x8000);
1147 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) {
1148 s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1149 s16buffer[sample++] = (FLAC__int16)(buffer[1][wide_sample]);
1152 else if(channels == 1) {
1153 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1154 s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]);
1156 else { /* works for any 'channels' but above flavors are faster for 1 and 2 */
1157 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1158 for(channel = 0; channel < channels; channel++, sample++)
1159 s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]);
1162 if(is_big_endian != is_big_endian_host_) {
1164 const unsigned bytes = sample * 2;
1166 for(b = 0; b < bytes; b += 2) {
1168 u8buffer[b] = u8buffer[b+1];
1169 u8buffer[b+1] = tmp;
1172 bytes_to_write = 2 * sample;
1174 else if(bps+shift == 24) {
1175 if(is_unsigned_samples) {
1176 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1177 for(channel = 0; channel < channels; channel++, sample++)
1178 u32buffer[sample] = buffer[channel][wide_sample] + 0x800000;
1181 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1182 for(channel = 0; channel < channels; channel++, sample++)
1183 s32buffer[sample] = buffer[channel][wide_sample];
1185 if(is_big_endian != is_big_endian_host_) {
1187 const unsigned bytes = sample * 4;
1189 for(b = 0; b < bytes; b += 4) {
1191 u8buffer[b] = u8buffer[b+3];
1192 u8buffer[b+3] = tmp;
1193 tmp = u8buffer[b+1];
1194 u8buffer[b+1] = u8buffer[b+2];
1195 u8buffer[b+2] = tmp;
1200 const unsigned bytes = sample * 4;
1201 for(lbyte = b = 0; b < bytes; ) {
1203 u8buffer[lbyte++] = u8buffer[b++];
1204 u8buffer[lbyte++] = u8buffer[b++];
1205 u8buffer[lbyte++] = u8buffer[b++];
1210 const unsigned bytes = sample * 4;
1211 for(lbyte = b = 0; b < bytes; ) {
1212 u8buffer[lbyte++] = u8buffer[b++];
1213 u8buffer[lbyte++] = u8buffer[b++];
1214 u8buffer[lbyte++] = u8buffer[b++];
1218 bytes_to_write = 3 * sample;
1220 else if(bps+shift == 8) {
1221 if(is_unsigned_samples) {
1222 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1223 for(channel = 0; channel < channels; channel++, sample++)
1224 u8buffer[sample] = (FLAC__uint8)(buffer[channel][wide_sample] + 0x80);
1227 for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
1228 for(channel = 0; channel < channels; channel++, sample++)
1229 s8buffer[sample] = (FLAC__int8)(buffer[channel][wide_sample]);
1231 bytes_to_write = sample;
1235 /* double protection */
1236 decoder_session->abort_flag = true;
1237 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1241 if(bytes_to_write > 0) {
1242 if(flac__utils_fwrite(u8buffer, 1, bytes_to_write, fout) != bytes_to_write) {
1243 /* if a pipe closed when writing to stdout, we let it go without an error message */
1244 if(errno == EPIPE && decoder_session->fout == stdout)
1245 decoder_session->aborting_due_to_until = true;
1246 decoder_session->abort_flag = true;
1247 return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
1250 return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
1253 void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
1255 DecoderSession *decoder_session = (DecoderSession*)client_data;
1257 if(decoder_session->analysis_mode)
1258 FLAC__stream_decoder_get_decode_position(decoder, &decoder_session->decode_position);
1260 if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
1261 FLAC__uint64 skip, until;
1262 decoder_session->got_stream_info = true;
1263 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);
1264 decoder_session->bps = metadata->data.stream_info.bits_per_sample;
1265 decoder_session->channels = metadata->data.stream_info.channels;
1266 decoder_session->sample_rate = metadata->data.stream_info.sample_rate;
1268 flac__utils_canonicalize_skip_until_specification(decoder_session->skip_specification, decoder_session->sample_rate);
1269 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1270 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples;
1272 /* remember, metadata->data.stream_info.total_samples can be 0, meaning 'unknown' */
1273 if(metadata->data.stream_info.total_samples > 0 && skip >= metadata->data.stream_info.total_samples) {
1274 flac__utils_printf(stderr, 1, "%s: ERROR trying to --skip more samples than in stream\n", decoder_session->inbasefilename);
1275 decoder_session->abort_flag = true;
1278 else if(metadata->data.stream_info.total_samples == 0 && skip > 0) {
1279 flac__utils_printf(stderr, 1, "%s: ERROR, can't --skip when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1280 decoder_session->abort_flag = true;
1283 FLAC__ASSERT(skip == 0 || 0 == decoder_session->cue_specification);
1284 decoder_session->total_samples = metadata->data.stream_info.total_samples - skip;
1286 /* note that we use metadata->data.stream_info.total_samples instead of decoder_session->total_samples */
1287 if(!canonicalize_until_specification(decoder_session->until_specification, decoder_session->inbasefilename, decoder_session->sample_rate, skip, metadata->data.stream_info.total_samples)) {
1288 decoder_session->abort_flag = true;
1291 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1292 until = (FLAC__uint64)decoder_session->until_specification->value.samples;
1295 FLAC__ASSERT(decoder_session->total_samples != 0);
1296 FLAC__ASSERT(0 == decoder_session->cue_specification);
1297 decoder_session->total_samples -= (metadata->data.stream_info.total_samples - until);
1300 if(decoder_session->bps < 4 || decoder_session->bps > 24) {
1301 flac__utils_printf(stderr, 1, "%s: ERROR: bits per sample is %u, must be 4-24\n", decoder_session->inbasefilename, decoder_session->bps);
1302 decoder_session->abort_flag = true;
1306 else if(metadata->type == FLAC__METADATA_TYPE_CUESHEET) {
1307 /* remember, at this point, decoder_session->total_samples can be 0, meaning 'unknown' */
1308 if(decoder_session->total_samples == 0) {
1309 flac__utils_printf(stderr, 1, "%s: ERROR can't use --cue when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename);
1310 decoder_session->abort_flag = true;
1314 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);
1316 FLAC__ASSERT(!decoder_session->skip_specification->is_relative);
1317 FLAC__ASSERT(decoder_session->skip_specification->value_is_samples);
1319 FLAC__ASSERT(!decoder_session->until_specification->is_relative);
1320 FLAC__ASSERT(decoder_session->until_specification->value_is_samples);
1322 FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0);
1323 FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0);
1324 FLAC__ASSERT((FLAC__uint64)decoder_session->until_specification->value.samples <= decoder_session->total_samples);
1325 FLAC__ASSERT(decoder_session->skip_specification->value.samples <= decoder_session->until_specification->value.samples);
1327 decoder_session->total_samples = decoder_session->until_specification->value.samples - decoder_session->skip_specification->value.samples;
1329 else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
1330 if (decoder_session->replaygain.spec.apply) {
1331 double reference, gain, peak;
1332 if (!(decoder_session->replaygain.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, /*strict=*/false, &reference, &gain, &peak))) {
1333 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");
1334 if(decoder_session->treat_warnings_as_errors) {
1335 decoder_session->abort_flag = true;
1340 const char *ls[] = { "no", "peak", "hard" };
1341 const char *ns[] = { "no", "low", "medium", "high" };
1342 decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK);
1343 FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32);
1344 FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping);
1345 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]);
1346 flac__utils_printf(stderr, 1, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename);
1347 /* don't check if(decoder_session->treat_warnings_as_errors) because the user explicitly asked for it */
1350 (void)flac__utils_get_channel_mask_tag(metadata, &decoder_session->channel_mask);
1354 void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
1356 DecoderSession *decoder_session = (DecoderSession*)client_data;
1358 if(!decoder_session->error_callback_suppress_messages)
1359 stats_print_name(1, decoder_session->inbasefilename);
1360 flac__utils_printf(stderr, 1, "*** Got error code %d:%s\n", status, FLAC__StreamDecoderErrorStatusString[status]);
1361 if(!decoder_session->continue_through_decode_errors) {
1362 /* if we got a sync error while looking for metadata, either it's not a FLAC file (more likely) or the file is corrupted */
1364 !decoder_session->error_callback_suppress_messages &&
1365 status == FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC &&
1366 FLAC__stream_decoder_get_state(decoder) == FLAC__STREAM_DECODER_SEARCH_FOR_METADATA
1368 flac__utils_printf(stderr, 1,
1370 "The input file is either not a FLAC file or is corrupted. If you are\n"
1371 "convinced it is a FLAC file, you can rerun the same command and add the\n"
1372 "-F parameter to try and recover as much as possible from the file.\n"
1374 decoder_session->error_callback_suppress_messages = true;
1376 else if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM)
1377 decoder_session->aborting_due_to_unparseable = true;
1378 decoder_session->abort_flag = true;
1382 void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status)
1384 const int ilen = strlen(d->inbasefilename) + 1;
1386 flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1388 flac__utils_printf(stderr, 1, "%*s init status = %s\n", ilen, "", FLAC__StreamDecoderInitStatusString[init_status]);
1390 /* print out some more info for some errors: */
1391 if (init_status == FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE) {
1392 flac__utils_printf(stderr, 1,
1394 "An error occurred opening the input file; it is likely that it does not exist\n"
1395 "or is not readable.\n"
1400 void print_error_with_state(const DecoderSession *d, const char *message)
1402 const int ilen = strlen(d->inbasefilename) + 1;
1404 flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message);
1405 flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", FLAC__stream_decoder_get_resolved_state_string(d->decoder));
1407 /* print out some more info for some errors: */
1408 if (d->aborting_due_to_unparseable) {
1409 flac__utils_printf(stderr, 1,
1411 "The FLAC stream may have been created by a more advanced encoder. Try\n"
1412 " metaflac --show-vendor-tag %s\n"
1413 "If the version number is greater than %s, this decoder is probably\n"
1414 "not able to decode the file. If the version number is not, the file\n"
1415 "may be corrupted, or you may have found a bug. In this case please\n"
1416 "submit a bug report to\n"
1417 " http://sourceforge.net/bugs/?func=addbug&group_id=13478\n"
1418 "Make sure to use the \"Monitor\" feature to monitor the bug status.\n",
1419 d->inbasefilename, FLAC__VERSION_STRING
1424 void print_stats(const DecoderSession *decoder_session)
1426 if(flac__utils_verbosity_ >= 2) {
1427 #if defined _MSC_VER || defined __MINGW32__
1428 /* with MSVC you have to spoon feed it the casting */
1429 const double progress = (double)(FLAC__int64)decoder_session->samples_processed / (double)(FLAC__int64)decoder_session->total_samples * 100.0;
1431 const double progress = (double)decoder_session->samples_processed / (double)decoder_session->total_samples * 100.0;
1434 if(decoder_session->total_samples > 0) {
1435 if ((unsigned)floor(progress + 0.5) == 100)
1438 stats_print_name(2, decoder_session->inbasefilename);
1439 stats_print_info(2, "%s%u%% complete",
1440 decoder_session->test_only? "testing, " : decoder_session->analysis_mode? "analyzing, " : "",
1441 (unsigned)floor(progress + 0.5)
1445 stats_print_name(2, decoder_session->inbasefilename);
1446 stats_print_info(2, "%s %" PRIu64 " samples",
1447 decoder_session->test_only? "tested" : decoder_session->analysis_mode? "analyzed" : "wrote",
1448 decoder_session->samples_processed