| /* flac - Command-line FLAC encoder/decoder |
| * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| #if HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #if defined _WIN32 && !defined __CYGWIN__ |
| /* where MSVC puts unlink() */ |
| # include <io.h> |
| #else |
| # include <unistd.h> |
| #endif |
| #if defined _MSC_VER || defined __MINGW32__ |
| #include <sys/types.h> /* for off_t */ |
| #if _MSC_VER <= 1600 /* @@@ [2G limit] */ |
| #define fseeko fseek |
| #define ftello ftell |
| #endif |
| #endif |
| #include <errno.h> |
| #include <math.h> /* for floor() */ |
| #include <stdio.h> /* for FILE etc. */ |
| #include <string.h> /* for strcmp(), strerror() */ |
| #include "FLAC/all.h" |
| #include "share/grabbag.h" |
| #include "share/replaygain_synthesis.h" |
| #include "decode.h" |
| |
| typedef struct { |
| #if FLAC__HAS_OGG |
| FLAC__bool is_ogg; |
| FLAC__bool use_first_serial_number; |
| long serial_number; |
| #endif |
| |
| FLAC__bool is_aiff_out; |
| FLAC__bool is_wave_out; |
| FLAC__bool treat_warnings_as_errors; |
| FLAC__bool continue_through_decode_errors; |
| FLAC__bool channel_map_none; |
| |
| struct { |
| replaygain_synthesis_spec_t spec; |
| FLAC__bool apply; /* 'spec.apply' is just a request; this 'apply' means we actually parsed the RG tags and are ready to go */ |
| double scale; |
| DitherContext dither_context; |
| } replaygain; |
| |
| FLAC__bool test_only; |
| FLAC__bool analysis_mode; |
| analysis_options aopts; |
| utils__SkipUntilSpecification *skip_specification; |
| utils__SkipUntilSpecification *until_specification; /* a canonicalized value of 0 mean end-of-stream (i.e. --until=-0) */ |
| utils__CueSpecification *cue_specification; |
| |
| const char *inbasefilename; |
| const char *infilename; |
| const char *outfilename; |
| |
| FLAC__uint64 samples_processed; |
| unsigned frame_counter; |
| FLAC__bool abort_flag; |
| FLAC__bool aborting_due_to_until; /* true if we intentionally abort decoding prematurely because we hit the --until point */ |
| FLAC__bool aborting_due_to_unparseable; /* true if we abort decoding because we hit an unparseable frame */ |
| |
| FLAC__bool iff_headers_need_fixup; |
| |
| FLAC__bool is_big_endian; |
| FLAC__bool is_unsigned_samples; |
| FLAC__bool got_stream_info; |
| FLAC__bool has_md5sum; |
| FLAC__uint64 total_samples; |
| unsigned bps; |
| unsigned channels; |
| unsigned sample_rate; |
| FLAC__uint32 channel_mask; |
| |
| /* these are used only in analyze mode */ |
| FLAC__uint64 decode_position; |
| |
| FLAC__StreamDecoder *decoder; |
| |
| FILE *fout; |
| |
| foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */ |
| off_t fm_offset1, fm_offset2, fm_offset3; |
| } DecoderSession; |
| |
| |
| static FLAC__bool is_big_endian_host_; |
| |
| |
| /* |
| * local routines |
| */ |
| static FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool use_first_serial_number, long serial_number, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, 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); |
| static void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred); |
| static FLAC__bool DecoderSession_init_decoder(DecoderSession *d, const char *infilename); |
| static FLAC__bool DecoderSession_process(DecoderSession *d); |
| static int DecoderSession_finish_ok(DecoderSession *d); |
| static int DecoderSession_finish_error(DecoderSession *d); |
| static FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input); |
| static FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples); |
| static FLAC__bool write_riff_wave_fmt_chunk(FILE *f, FLAC__bool is_waveformatextensible, unsigned bps, unsigned channels, unsigned sample_rate, FLAC__uint32 channel_mask); |
| static FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate); |
| static FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val); |
| static FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val); |
| static FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val); |
| static FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val); |
| static FLAC__bool write_sane_extended(FILE *f, unsigned val); |
| static FLAC__bool fixup_iff_headers(DecoderSession *d); |
| static FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data); |
| static void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data); |
| static void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data); |
| static void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status); |
| static void print_error_with_state(const DecoderSession *d, const char *message); |
| static void print_stats(const DecoderSession *decoder_session); |
| |
| |
| /* |
| * public routines |
| */ |
| int flac__decode_aiff(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, wav_decode_options_t options) |
| { |
| DecoderSession decoder_session; |
| |
| if(! |
| DecoderSession_construct( |
| &decoder_session, |
| #if FLAC__HAS_OGG |
| options.common.is_ogg, |
| options.common.use_first_serial_number, |
| options.common.serial_number, |
| #else |
| /*is_ogg=*/false, |
| /*use_first_serial_number=*/false, |
| /*serial_number=*/0, |
| #endif |
| /*is_aiff_out=*/true, |
| /*is_wave_out=*/false, |
| options.common.treat_warnings_as_errors, |
| options.common.continue_through_decode_errors, |
| options.common.channel_map_none, |
| options.common.replaygain_synthesis_spec, |
| analysis_mode, |
| aopts, |
| &options.common.skip_specification, |
| &options.common.until_specification, |
| options.common.has_cue_specification? &options.common.cue_specification : 0, |
| options.foreign_metadata, |
| infilename, |
| outfilename |
| ) |
| ) |
| return 1; |
| |
| if(!DecoderSession_init_decoder(&decoder_session, infilename)) |
| return DecoderSession_finish_error(&decoder_session); |
| |
| if(!DecoderSession_process(&decoder_session)) |
| return DecoderSession_finish_error(&decoder_session); |
| |
| return DecoderSession_finish_ok(&decoder_session); |
| } |
| |
| int flac__decode_wav(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, wav_decode_options_t options) |
| { |
| DecoderSession decoder_session; |
| |
| if(! |
| DecoderSession_construct( |
| &decoder_session, |
| #if FLAC__HAS_OGG |
| options.common.is_ogg, |
| options.common.use_first_serial_number, |
| options.common.serial_number, |
| #else |
| /*is_ogg=*/false, |
| /*use_first_serial_number=*/false, |
| /*serial_number=*/0, |
| #endif |
| /*is_aiff_out=*/false, |
| /*is_wave_out=*/true, |
| options.common.treat_warnings_as_errors, |
| options.common.continue_through_decode_errors, |
| options.common.channel_map_none, |
| options.common.replaygain_synthesis_spec, |
| analysis_mode, |
| aopts, |
| &options.common.skip_specification, |
| &options.common.until_specification, |
| options.common.has_cue_specification? &options.common.cue_specification : 0, |
| options.foreign_metadata, |
| infilename, |
| outfilename |
| ) |
| ) |
| return 1; |
| |
| if(!DecoderSession_init_decoder(&decoder_session, infilename)) |
| return DecoderSession_finish_error(&decoder_session); |
| |
| if(!DecoderSession_process(&decoder_session)) |
| return DecoderSession_finish_error(&decoder_session); |
| |
| return DecoderSession_finish_ok(&decoder_session); |
| } |
| |
| int flac__decode_raw(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, raw_decode_options_t options) |
| { |
| DecoderSession decoder_session; |
| |
| decoder_session.is_big_endian = options.is_big_endian; |
| decoder_session.is_unsigned_samples = options.is_unsigned_samples; |
| |
| if(! |
| DecoderSession_construct( |
| &decoder_session, |
| #if FLAC__HAS_OGG |
| options.common.is_ogg, |
| options.common.use_first_serial_number, |
| options.common.serial_number, |
| #else |
| /*is_ogg=*/false, |
| /*use_first_serial_number=*/false, |
| /*serial_number=*/0, |
| #endif |
| /*is_aiff_out=*/false, |
| /*is_wave_out=*/false, |
| options.common.treat_warnings_as_errors, |
| options.common.continue_through_decode_errors, |
| options.common.channel_map_none, |
| options.common.replaygain_synthesis_spec, |
| analysis_mode, |
| aopts, |
| &options.common.skip_specification, |
| &options.common.until_specification, |
| options.common.has_cue_specification? &options.common.cue_specification : 0, |
| /*foreign_metadata=*/NULL, |
| infilename, |
| outfilename |
| ) |
| ) |
| return 1; |
| |
| if(!DecoderSession_init_decoder(&decoder_session, infilename)) |
| return DecoderSession_finish_error(&decoder_session); |
| |
| if(!DecoderSession_process(&decoder_session)) |
| return DecoderSession_finish_error(&decoder_session); |
| |
| return DecoderSession_finish_ok(&decoder_session); |
| } |
| |
| FLAC__bool DecoderSession_construct(DecoderSession *d, FLAC__bool is_ogg, FLAC__bool use_first_serial_number, long serial_number, FLAC__bool is_aiff_out, FLAC__bool is_wave_out, 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) |
| { |
| #if FLAC__HAS_OGG |
| d->is_ogg = is_ogg; |
| d->use_first_serial_number = use_first_serial_number; |
| d->serial_number = serial_number; |
| #else |
| (void)is_ogg; |
| (void)use_first_serial_number; |
| (void)serial_number; |
| #endif |
| |
| d->is_aiff_out = is_aiff_out; |
| d->is_wave_out = is_wave_out; |
| d->treat_warnings_as_errors = treat_warnings_as_errors; |
| d->continue_through_decode_errors = continue_through_decode_errors; |
| d->channel_map_none = channel_map_none; |
| d->replaygain.spec = replaygain_synthesis_spec; |
| d->replaygain.apply = false; |
| d->replaygain.scale = 0.0; |
| /* d->replaygain.dither_context gets initialized later once we know the sample resolution */ |
| d->test_only = (0 == outfilename); |
| d->analysis_mode = analysis_mode; |
| d->aopts = aopts; |
| d->skip_specification = skip_specification; |
| d->until_specification = until_specification; |
| d->cue_specification = cue_specification; |
| |
| d->inbasefilename = grabbag__file_get_basename(infilename); |
| d->infilename = infilename; |
| d->outfilename = outfilename; |
| |
| d->samples_processed = 0; |
| d->frame_counter = 0; |
| d->abort_flag = false; |
| d->aborting_due_to_until = false; |
| d->aborting_due_to_unparseable = false; |
| |
| d->iff_headers_need_fixup = false; |
| |
| d->total_samples = 0; |
| d->got_stream_info = false; |
| d->has_md5sum = false; |
| d->bps = 0; |
| d->channels = 0; |
| d->sample_rate = 0; |
| d->channel_mask = 0; |
| |
| d->decode_position = 0; |
| |
| d->decoder = 0; |
| |
| d->fout = 0; /* initialized with an open file later if necessary */ |
| |
| d->foreign_metadata = foreign_metadata; |
| |
| FLAC__ASSERT(!(d->test_only && d->analysis_mode)); |
| |
| if(!d->test_only) { |
| if(0 == strcmp(outfilename, "-")) { |
| d->fout = grabbag__file_get_binary_stdout(); |
| } |
| else { |
| if(0 == (d->fout = fopen(outfilename, "wb"))) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: can't open output file %s: %s\n", d->inbasefilename, outfilename, strerror(errno)); |
| DecoderSession_destroy(d, /*error_occurred=*/true); |
| return false; |
| } |
| } |
| } |
| |
| if(analysis_mode) |
| flac__analyze_init(aopts); |
| |
| return true; |
| } |
| |
| void DecoderSession_destroy(DecoderSession *d, FLAC__bool error_occurred) |
| { |
| if(0 != d->fout && d->fout != stdout) { |
| fclose(d->fout); |
| if(error_occurred) |
| unlink(d->outfilename); |
| } |
| } |
| |
| FLAC__bool DecoderSession_init_decoder(DecoderSession *decoder_session, const char *infilename) |
| { |
| FLAC__StreamDecoderInitStatus init_status; |
| FLAC__uint32 test = 1; |
| |
| is_big_endian_host_ = (*((FLAC__byte*)(&test)))? false : true; |
| |
| if(!decoder_session->analysis_mode && !decoder_session->test_only && (decoder_session->is_wave_out || decoder_session->is_aiff_out)) { |
| if(decoder_session->foreign_metadata) { |
| const char *error; |
| if(!flac__foreign_metadata_read_from_flac(decoder_session->foreign_metadata, infilename, &error)) { |
| flac__utils_printf(stderr, 1, "%s: ERROR reading foreign metadata: %s\n", decoder_session->inbasefilename, error); |
| return false; |
| } |
| } |
| } |
| |
| decoder_session->decoder = FLAC__stream_decoder_new(); |
| |
| if(0 == decoder_session->decoder) { |
| flac__utils_printf(stderr, 1, "%s: ERROR creating the decoder instance\n", decoder_session->inbasefilename); |
| return false; |
| } |
| |
| FLAC__stream_decoder_set_md5_checking(decoder_session->decoder, true); |
| if (0 != decoder_session->cue_specification) |
| FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_CUESHEET); |
| if (decoder_session->replaygain.spec.apply) |
| FLAC__stream_decoder_set_metadata_respond(decoder_session->decoder, FLAC__METADATA_TYPE_VORBIS_COMMENT); |
| |
| #if FLAC__HAS_OGG |
| if(decoder_session->is_ogg) { |
| if(!decoder_session->use_first_serial_number) |
| FLAC__stream_decoder_set_ogg_serial_number(decoder_session->decoder, decoder_session->serial_number); |
| 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); |
| } |
| else |
| #endif |
| { |
| init_status = FLAC__stream_decoder_init_file(decoder_session->decoder, strcmp(infilename, "-")? infilename : 0, write_callback, metadata_callback, error_callback, /*client_data=*/decoder_session); |
| } |
| |
| if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) { |
| print_error_with_init_status(decoder_session, "ERROR initializing decoder", init_status); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| FLAC__bool DecoderSession_process(DecoderSession *d) |
| { |
| if(!FLAC__stream_decoder_process_until_end_of_metadata(d->decoder)) { |
| flac__utils_printf(stderr, 2, "\n"); |
| print_error_with_state(d, "ERROR while decoding metadata"); |
| return false; |
| } |
| if(FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM) { |
| flac__utils_printf(stderr, 2, "\n"); |
| print_error_with_state(d, "ERROR during metadata decoding"); |
| if(!d->continue_through_decode_errors) |
| return false; |
| } |
| |
| if(d->abort_flag) |
| return false; |
| |
| /* set channel mapping */ |
| if(!d->channel_map_none) { |
| /* currently FLAC order matches SMPTE/WAVEFORMATEXTENSIBLE order, so no reordering is necessary; see encode.c */ |
| /* only the channel mask must be set if it was not already picked up from the WAVEFORMATEXTENSIBLE_CHANNEL_MASK tag */ |
| if(d->channels == 1) { |
| if(d->channel_mask == 0) |
| d->channel_mask = 0x0001; |
| } |
| else if(d->channels == 2) { |
| if(d->channel_mask == 0) |
| d->channel_mask = 0x0003; |
| } |
| else if(d->channels == 3) { |
| if(d->channel_mask == 0) |
| d->channel_mask = 0x0007; |
| } |
| else if(d->channels == 4) { |
| if(d->channel_mask == 0) |
| d->channel_mask = 0x0033; |
| } |
| else if(d->channels == 5) { |
| if(d->channel_mask == 0) |
| d->channel_mask = 0x0607; |
| } |
| else if(d->channels == 6) { |
| if(d->channel_mask == 0) |
| d->channel_mask = 0x060f; |
| } |
| } |
| |
| /* write the WAVE/AIFF headers if necessary */ |
| if(!d->analysis_mode && !d->test_only && (d->is_wave_out || d->is_aiff_out)) { |
| if(!write_iff_headers(d->fout, d, d->total_samples)) { |
| d->abort_flag = true; |
| return false; |
| } |
| } |
| |
| if(d->skip_specification->value.samples > 0) { |
| const FLAC__uint64 skip = (FLAC__uint64)d->skip_specification->value.samples; |
| |
| if(!FLAC__stream_decoder_seek_absolute(d->decoder, skip)) { |
| print_error_with_state(d, "ERROR seeking while skipping bytes"); |
| return false; |
| } |
| } |
| if(!FLAC__stream_decoder_process_until_end_of_stream(d->decoder) && !d->aborting_due_to_until) { |
| flac__utils_printf(stderr, 2, "\n"); |
| print_error_with_state(d, "ERROR while decoding data"); |
| if(!d->continue_through_decode_errors) |
| return false; |
| } |
| if( |
| (d->abort_flag && !(d->aborting_due_to_until || d->continue_through_decode_errors)) || |
| (FLAC__stream_decoder_get_state(d->decoder) > FLAC__STREAM_DECODER_END_OF_STREAM && !d->aborting_due_to_until) |
| ) { |
| flac__utils_printf(stderr, 2, "\n"); |
| print_error_with_state(d, "ERROR during decoding"); |
| return false; |
| } |
| |
| if(!d->analysis_mode && !d->test_only && (d->is_wave_out || d->is_aiff_out) && ((d->total_samples * d->channels * ((d->bps+7)/8)) & 1)) { |
| if(flac__utils_fwrite("\000", 1, 1, d->fout) != 1) { |
| print_error_with_state(d, d->is_wave_out? |
| "ERROR writing pad byte to WAVE data chunk" : |
| "ERROR writing pad byte to AIFF SSND chunk" |
| ); |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| int DecoderSession_finish_ok(DecoderSession *d) |
| { |
| FLAC__bool ok = true, md5_failure = false; |
| |
| if(d->decoder) { |
| md5_failure = !FLAC__stream_decoder_finish(d->decoder) && !d->aborting_due_to_until; |
| print_stats(d); |
| FLAC__stream_decoder_delete(d->decoder); |
| } |
| if(d->analysis_mode) |
| flac__analyze_finish(d->aopts); |
| if(md5_failure) { |
| flac__utils_printf(stderr, 1, "\r%s: ERROR, MD5 signature mismatch\n", d->inbasefilename); |
| ok = d->continue_through_decode_errors; |
| } |
| else { |
| if(!d->got_stream_info) { |
| flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since there was no STREAMINFO\n", d->inbasefilename); |
| ok = !d->treat_warnings_as_errors; |
| } |
| else if(!d->has_md5sum) { |
| flac__utils_printf(stderr, 1, "\r%s: WARNING, cannot check MD5 signature since it was unset in the STREAMINFO\n", d->inbasefilename); |
| ok = !d->treat_warnings_as_errors; |
| } |
| flac__utils_printf(stderr, 2, "\r%s: %s \n", d->inbasefilename, d->test_only? "ok ":d->analysis_mode?"done ":"done"); |
| } |
| DecoderSession_destroy(d, /*error_occurred=*/!ok); |
| if(!d->analysis_mode && !d->test_only && (d->is_wave_out || d->is_aiff_out)) { |
| if(d->iff_headers_need_fixup || (!d->got_stream_info && strcmp(d->outfilename, "-"))) { |
| if(!fixup_iff_headers(d)) |
| return 1; |
| } |
| if(d->foreign_metadata) { |
| const char *error; |
| if(!flac__foreign_metadata_write_to_iff(d->foreign_metadata, d->infilename, d->outfilename, d->fm_offset1, d->fm_offset2, d->fm_offset3, &error)) { |
| flac__utils_printf(stderr, 1, "ERROR updating foreign metadata from %s to %s: %s\n", d->infilename, d->outfilename, error); |
| return 1; |
| } |
| } |
| } |
| return ok? 0 : 1; |
| } |
| |
| int DecoderSession_finish_error(DecoderSession *d) |
| { |
| if(d->decoder) { |
| (void)FLAC__stream_decoder_finish(d->decoder); |
| FLAC__stream_decoder_delete(d->decoder); |
| } |
| if(d->analysis_mode) |
| flac__analyze_finish(d->aopts); |
| DecoderSession_destroy(d, /*error_occurred=*/true); |
| return 1; |
| } |
| |
| FLAC__bool canonicalize_until_specification(utils__SkipUntilSpecification *spec, const char *inbasefilename, unsigned sample_rate, FLAC__uint64 skip, FLAC__uint64 total_samples_in_input) |
| { |
| /* convert from mm:ss.sss to sample number if necessary */ |
| flac__utils_canonicalize_skip_until_specification(spec, sample_rate); |
| |
| /* special case: if "--until=-0", use the special value '0' to mean "end-of-stream" */ |
| if(spec->is_relative && spec->value.samples == 0) { |
| spec->is_relative = false; |
| return true; |
| } |
| |
| /* in any other case the total samples in the input must be known */ |
| if(total_samples_in_input == 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR, cannot use --until when FLAC metadata has total sample count of 0\n", inbasefilename); |
| return false; |
| } |
| |
| FLAC__ASSERT(spec->value_is_samples); |
| |
| /* convert relative specifications to absolute */ |
| if(spec->is_relative) { |
| if(spec->value.samples <= 0) |
| spec->value.samples += (FLAC__int64)total_samples_in_input; |
| else |
| spec->value.samples += skip; |
| spec->is_relative = false; |
| } |
| |
| /* error check */ |
| if(spec->value.samples < 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before beginning of input\n", inbasefilename); |
| return false; |
| } |
| if((FLAC__uint64)spec->value.samples <= skip) { |
| flac__utils_printf(stderr, 1, "%s: ERROR, --until value is before --skip point\n", inbasefilename); |
| return false; |
| } |
| if((FLAC__uint64)spec->value.samples > total_samples_in_input) { |
| flac__utils_printf(stderr, 1, "%s: ERROR, --until value is after end of input\n", inbasefilename); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| FLAC__bool write_iff_headers(FILE *f, DecoderSession *decoder_session, FLAC__uint64 samples) |
| { |
| const char *fmt_desc = decoder_session->is_wave_out? "WAVE" : "AIFF"; |
| const FLAC__bool is_waveformatextensible = decoder_session->is_wave_out && (decoder_session->channel_mask == 2 || decoder_session->channel_mask > 3 || decoder_session->bps%8 || decoder_session->channels > 2); |
| FLAC__uint64 data_size = samples * decoder_session->channels * ((decoder_session->bps+7)/8); |
| const FLAC__uint32 aligned_data_size = (FLAC__uint32)((data_size+1) & (~1U)); /* we'll check for overflow later */ |
| |
| unsigned foreign_metadata_size = 0; /* size of all non-audio non-fmt/COMM foreign metadata chunks */ |
| foreign_metadata_t *fm = decoder_session->foreign_metadata; |
| size_t i; |
| |
| if(samples == 0) { |
| if(f == stdout) { |
| flac__utils_printf(stderr, 1, "%s: WARNING, don't have accurate sample count available for %s header.\n", decoder_session->inbasefilename, fmt_desc); |
| flac__utils_printf(stderr, 1, " Generated %s file will have a data chunk size of 0. Try\n", fmt_desc); |
| flac__utils_printf(stderr, 1, " decoding directly to a file instead.\n"); |
| if(decoder_session->treat_warnings_as_errors) |
| return false; |
| } |
| else { |
| decoder_session->iff_headers_need_fixup = true; |
| } |
| } |
| |
| if(fm) { |
| FLAC__ASSERT(fm->format_block); |
| FLAC__ASSERT(fm->audio_block); |
| FLAC__ASSERT(fm->format_block < fm->audio_block); |
| /* calc foreign metadata size; for RIFF/AIFF we always skip the first chunk, format chunk, and sound chunk since we write our own */ |
| for(i = 1; i < fm->num_blocks; i++) { |
| if(i != fm->format_block && i != fm->audio_block) |
| foreign_metadata_size += fm->blocks[i].size; |
| } |
| } |
| |
| if(data_size + foreign_metadata_size + 60/*worst-case*/ >= 0xFFFFFFF4) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: stream is too big to fit in a single %s file\n", decoder_session->inbasefilename, fmt_desc); |
| return false; |
| } |
| |
| if(decoder_session->is_wave_out) { |
| if(flac__utils_fwrite("RIFF", 1, 4, f) != 4) |
| return false; |
| |
| if(!write_little_endian_uint32(f, foreign_metadata_size + aligned_data_size + (is_waveformatextensible?60:36))) /* filesize-8 */ |
| return false; |
| |
| if(flac__utils_fwrite("WAVE", 1, 4, f) != 4) |
| return false; |
| |
| decoder_session->fm_offset1 = ftello(f); |
| |
| if(fm) { |
| /* seek forward to {allocate} or {skip over already-written chunks} before "fmt " */ |
| for(i = 1; i < fm->format_block; i++) { |
| if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"fmt \"\n", decoder_session->inbasefilename); |
| return false; |
| } |
| } |
| } |
| |
| if(!write_riff_wave_fmt_chunk(f, is_waveformatextensible, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate, decoder_session->channel_mask)) |
| return false; |
| |
| decoder_session->fm_offset2 = ftello(f); |
| |
| if(fm) { |
| /* seek forward to {allocate} or {skip over already-written chunks} after "fmt " but before "data" */ |
| for(i = fm->format_block+1; i < fm->audio_block; i++) { |
| if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"fmt \"\n", decoder_session->inbasefilename); |
| return false; |
| } |
| } |
| } |
| |
| if(flac__utils_fwrite("data", 1, 4, f) != 4) |
| return false; |
| |
| if(!write_little_endian_uint32(f, (FLAC__uint32)data_size)) /* data size */ |
| return false; |
| |
| decoder_session->fm_offset3 = ftello(f) + aligned_data_size; |
| } |
| else { |
| FLAC__uint32 ssnd_offset_size = (fm? fm->ssnd_offset_size : 0); |
| |
| if(flac__utils_fwrite("FORM", 1, 4, f) != 4) |
| return false; |
| |
| if(!write_big_endian_uint32(f, foreign_metadata_size + aligned_data_size + 46 + ssnd_offset_size)) /* filesize-8 */ |
| return false; |
| |
| if(flac__utils_fwrite("AIFF", 1, 4, f) != 4) |
| return false; |
| |
| decoder_session->fm_offset1 = ftello(f); |
| |
| if(fm) { |
| /* seek forward to {allocate} or {skip over already-written chunks} before "COMM" */ |
| for(i = 1; i < fm->format_block; i++) { |
| if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata before \"COMM\"\n", decoder_session->inbasefilename); |
| return false; |
| } |
| } |
| } |
| |
| if(!write_aiff_form_comm_chunk(f, samples, decoder_session->bps, decoder_session->channels, decoder_session->sample_rate)) |
| return false; |
| |
| decoder_session->fm_offset2 = ftello(f); |
| |
| if(fm) { |
| /* seek forward to {allocate} or {skip over already-written chunks} after "COMM" but before "SSND" */ |
| for(i = fm->format_block+1; i < fm->audio_block; i++) { |
| if(fseeko(f, fm->blocks[i].size, SEEK_CUR) < 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping foreign metadata after \"COMM\"\n", decoder_session->inbasefilename); |
| return false; |
| } |
| } |
| } |
| |
| if(flac__utils_fwrite("SSND", 1, 4, f) != 4) |
| return false; |
| |
| if(!write_big_endian_uint32(f, (FLAC__uint32)data_size + 8 + ssnd_offset_size)) /* data size */ |
| return false; |
| |
| if(!write_big_endian_uint32(f, ssnd_offset_size)) |
| return false; |
| |
| if(!write_big_endian_uint32(f, 0/*block_size*/)) |
| return false; |
| |
| if(ssnd_offset_size) { |
| /* seek forward to {allocate} or {skip over already-written} SSND offset */ |
| if(fseeko(f, ssnd_offset_size, SEEK_CUR) < 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: allocating/skipping \"SSND\" offset\n", decoder_session->inbasefilename); |
| return false; |
| } |
| } |
| |
| decoder_session->fm_offset3 = ftello(f) + aligned_data_size; |
| } |
| |
| return true; |
| } |
| |
| FLAC__bool write_riff_wave_fmt_chunk(FILE *f, FLAC__bool is_waveformatextensible, unsigned bps, unsigned channels, unsigned sample_rate, FLAC__uint32 channel_mask) |
| { |
| if(flac__utils_fwrite("fmt ", 1, 4, f) != 4) |
| return false; |
| |
| if(!write_little_endian_uint32(f, is_waveformatextensible? 40 : 16)) /* chunk size */ |
| return false; |
| |
| if(!write_little_endian_uint16(f, (FLAC__uint16)(is_waveformatextensible? 65534 : 1))) /* compression code */ |
| return false; |
| |
| if(!write_little_endian_uint16(f, (FLAC__uint16)channels)) |
| return false; |
| |
| if(!write_little_endian_uint32(f, sample_rate)) |
| return false; |
| |
| if(!write_little_endian_uint32(f, sample_rate * channels * ((bps+7) / 8))) |
| return false; |
| |
| if(!write_little_endian_uint16(f, (FLAC__uint16)(channels * ((bps+7) / 8)))) /* block align */ |
| return false; |
| |
| if(!write_little_endian_uint16(f, (FLAC__uint16)(((bps+7)/8)*8))) /* bits per sample */ |
| return false; |
| |
| if(is_waveformatextensible) { |
| if(!write_little_endian_uint16(f, (FLAC__uint16)22)) /* cbSize */ |
| return false; |
| |
| if(!write_little_endian_uint16(f, (FLAC__uint16)bps)) /* validBitsPerSample */ |
| return false; |
| |
| if(!write_little_endian_uint32(f, channel_mask)) |
| return false; |
| |
| /* GUID = {0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}} */ |
| if(flac__utils_fwrite("\x01\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xaa\x00\x38\x9b\x71", 1, 16, f) != 16) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| FLAC__bool write_aiff_form_comm_chunk(FILE *f, FLAC__uint64 samples, unsigned bps, unsigned channels, unsigned sample_rate) |
| { |
| FLAC__ASSERT(samples <= 0xffffffff); |
| |
| if(flac__utils_fwrite("COMM", 1, 4, f) != 4) |
| return false; |
| |
| if(!write_big_endian_uint32(f, 18)) /* chunk size = 18 */ |
| return false; |
| |
| if(!write_big_endian_uint16(f, (FLAC__uint16)channels)) |
| return false; |
| |
| if(!write_big_endian_uint32(f, (FLAC__uint32)samples)) |
| return false; |
| |
| if(!write_big_endian_uint16(f, (FLAC__uint16)bps)) |
| return false; |
| |
| if(!write_sane_extended(f, sample_rate)) |
| return false; |
| |
| return true; |
| } |
| |
| FLAC__bool write_little_endian_uint16(FILE *f, FLAC__uint16 val) |
| { |
| FLAC__byte *b = (FLAC__byte*)(&val); |
| if(is_big_endian_host_) { |
| FLAC__byte tmp; |
| tmp = b[1]; b[1] = b[0]; b[0] = tmp; |
| } |
| return flac__utils_fwrite(b, 1, 2, f) == 2; |
| } |
| |
| FLAC__bool write_little_endian_uint32(FILE *f, FLAC__uint32 val) |
| { |
| FLAC__byte *b = (FLAC__byte*)(&val); |
| if(is_big_endian_host_) { |
| FLAC__byte tmp; |
| tmp = b[3]; b[3] = b[0]; b[0] = tmp; |
| tmp = b[2]; b[2] = b[1]; b[1] = tmp; |
| } |
| return flac__utils_fwrite(b, 1, 4, f) == 4; |
| } |
| |
| FLAC__bool write_big_endian_uint16(FILE *f, FLAC__uint16 val) |
| { |
| FLAC__byte *b = (FLAC__byte*)(&val); |
| if(!is_big_endian_host_) { |
| FLAC__byte tmp; |
| tmp = b[1]; b[1] = b[0]; b[0] = tmp; |
| } |
| return flac__utils_fwrite(b, 1, 2, f) == 2; |
| } |
| |
| FLAC__bool write_big_endian_uint32(FILE *f, FLAC__uint32 val) |
| { |
| FLAC__byte *b = (FLAC__byte*)(&val); |
| if(!is_big_endian_host_) { |
| FLAC__byte tmp; |
| tmp = b[3]; b[3] = b[0]; b[0] = tmp; |
| tmp = b[2]; b[2] = b[1]; b[1] = tmp; |
| } |
| return flac__utils_fwrite(b, 1, 4, f) == 4; |
| } |
| |
| FLAC__bool write_sane_extended(FILE *f, unsigned val) |
| /* Write to 'f' a SANE extended representation of 'val'. Return false if |
| * the write succeeds; return true otherwise. |
| * |
| * SANE extended is an 80-bit IEEE-754 representation with sign bit, 15 bits |
| * of exponent, and 64 bits of significand (mantissa). Unlike most IEEE-754 |
| * representations, it does not imply a 1 above the MSB of the significand. |
| * |
| * Preconditions: |
| * val!=0U |
| */ |
| { |
| unsigned int shift, exponent; |
| |
| FLAC__ASSERT(val!=0U); /* handling 0 would require a special case */ |
| |
| for(shift= 0U; (val>>(31-shift))==0U; ++shift) |
| ; |
| val<<= shift; |
| exponent= 63U-(shift+32U); /* add 32 for unused second word */ |
| |
| if(!write_big_endian_uint16(f, (FLAC__uint16)(exponent+0x3FFF))) |
| return false; |
| if(!write_big_endian_uint32(f, val)) |
| return false; |
| if(!write_big_endian_uint32(f, 0)) /* unused second word */ |
| return false; |
| |
| return true; |
| } |
| |
| FLAC__bool fixup_iff_headers(DecoderSession *d) |
| { |
| const char *fmt_desc = (d->is_wave_out? "WAVE" : "AIFF"); |
| FILE *f = fopen(d->outfilename, "r+b"); /* stream is positioned at beginning of file */ |
| |
| if(0 == f) { |
| 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)); |
| return false; |
| } |
| |
| if(!write_iff_headers(f, d, d->samples_processed)) { |
| fclose(f); |
| return false; |
| } |
| |
| fclose(f); |
| return true; |
| } |
| |
| FLAC__StreamDecoderWriteStatus write_callback(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data) |
| { |
| DecoderSession *decoder_session = (DecoderSession*)client_data; |
| FILE *fout = decoder_session->fout; |
| const unsigned bps = frame->header.bits_per_sample, channels = frame->header.channels; |
| const unsigned shift = ((decoder_session->is_wave_out || decoder_session->is_aiff_out) && (bps%8)? 8-(bps%8): 0); |
| FLAC__bool is_big_endian = (decoder_session->is_aiff_out? true : (decoder_session->is_wave_out? false : decoder_session->is_big_endian)); |
| FLAC__bool is_unsigned_samples = (decoder_session->is_aiff_out? false : (decoder_session->is_wave_out? bps<=8 : decoder_session->is_unsigned_samples)); |
| unsigned wide_samples = frame->header.blocksize, wide_sample, sample, channel, byte; |
| unsigned frame_bytes = 0; |
| static FLAC__int8 s8buffer[FLAC__MAX_BLOCK_SIZE * FLAC__MAX_CHANNELS * sizeof(FLAC__int32)]; /* WATCHOUT: can be up to 2 megs */ |
| FLAC__uint8 *u8buffer = (FLAC__uint8 *)s8buffer; |
| FLAC__int16 *s16buffer = (FLAC__int16 *)s8buffer; |
| FLAC__uint16 *u16buffer = (FLAC__uint16 *)s8buffer; |
| FLAC__int32 *s32buffer = (FLAC__int32 *)s8buffer; |
| FLAC__uint32 *u32buffer = (FLAC__uint32 *)s8buffer; |
| size_t bytes_to_write = 0; |
| |
| (void)decoder; |
| |
| if(decoder_session->abort_flag) |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| |
| /* sanity-check the bits-per-sample */ |
| if(decoder_session->bps) { |
| if(bps != decoder_session->bps) { |
| if(decoder_session->got_stream_info) |
| 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); |
| else |
| 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); |
| if(!decoder_session->continue_through_decode_errors) |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| else { |
| /* must not have gotten STREAMINFO, save the bps from the frame header */ |
| FLAC__ASSERT(!decoder_session->got_stream_info); |
| decoder_session->bps = bps; |
| } |
| |
| /* sanity-check the #channels */ |
| if(decoder_session->channels) { |
| if(channels != decoder_session->channels) { |
| if(decoder_session->got_stream_info) |
| flac__utils_printf(stderr, 1, "%s: ERROR, channels is %u in frame but %u in STREAMINFO\n", decoder_session->inbasefilename, channels, decoder_session->channels); |
| else |
| 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); |
| if(!decoder_session->continue_through_decode_errors) |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| else { |
| /* must not have gotten STREAMINFO, save the #channels from the frame header */ |
| FLAC__ASSERT(!decoder_session->got_stream_info); |
| decoder_session->channels = channels; |
| } |
| |
| /* sanity-check the sample rate */ |
| if(decoder_session->sample_rate) { |
| if(frame->header.sample_rate != decoder_session->sample_rate) { |
| if(decoder_session->got_stream_info) |
| 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); |
| else |
| 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); |
| if(!decoder_session->continue_through_decode_errors) |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| else { |
| /* must not have gotten STREAMINFO, save the sample rate from the frame header */ |
| FLAC__ASSERT(!decoder_session->got_stream_info); |
| decoder_session->sample_rate = frame->header.sample_rate; |
| } |
| |
| /* |
| * limit the number of samples to accept based on --until |
| */ |
| FLAC__ASSERT(!decoder_session->skip_specification->is_relative); |
| /* if we never got the total_samples from the metadata, the skip and until specs would never have been canonicalized, so protect against that: */ |
| if(decoder_session->skip_specification->is_relative) { |
| if(decoder_session->skip_specification->value.samples == 0) /* special case for when no --skip was given */ |
| decoder_session->skip_specification->is_relative = false; /* convert to our meaning of beginning-of-stream */ |
| else { |
| 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); |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| if(decoder_session->until_specification->is_relative) { |
| if(decoder_session->until_specification->value.samples == 0) /* special case for when no --until was given */ |
| decoder_session->until_specification->is_relative = false; /* convert to our meaning of end-of-stream */ |
| else { |
| 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); |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0); |
| FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0); |
| if(decoder_session->until_specification->value.samples > 0) { |
| const FLAC__uint64 skip = (FLAC__uint64)decoder_session->skip_specification->value.samples; |
| const FLAC__uint64 until = (FLAC__uint64)decoder_session->until_specification->value.samples; |
| const FLAC__uint64 input_samples_passed = skip + decoder_session->samples_processed; |
| FLAC__ASSERT(until >= input_samples_passed); |
| if(input_samples_passed + wide_samples > until) |
| wide_samples = (unsigned)(until - input_samples_passed); |
| if (wide_samples == 0) { |
| decoder_session->abort_flag = true; |
| decoder_session->aborting_due_to_until = true; |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| |
| if(decoder_session->analysis_mode) { |
| FLAC__uint64 dpos; |
| FLAC__stream_decoder_get_decode_position(decoder_session->decoder, &dpos); |
| frame_bytes = (unsigned)(dpos-decoder_session->decode_position); |
| decoder_session->decode_position = dpos; |
| } |
| |
| if(wide_samples > 0) { |
| decoder_session->samples_processed += wide_samples; |
| decoder_session->frame_counter++; |
| |
| if(!(decoder_session->frame_counter & 0x3f)) |
| print_stats(decoder_session); |
| |
| if(decoder_session->analysis_mode) { |
| flac__analyze_frame(frame, decoder_session->frame_counter-1, decoder_session->decode_position-frame_bytes, frame_bytes, decoder_session->aopts, fout); |
| } |
| else if(!decoder_session->test_only) { |
| if(shift && !decoder_session->replaygain.apply) { |
| for(wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++) |
| ((FLAC__int32**)buffer)[channel][wide_sample] <<= shift;/*@@@@@@un-const'ing the buffer is hacky but safe*/ |
| } |
| if(decoder_session->replaygain.apply) { |
| bytes_to_write = FLAC__replaygain_synthesis__apply_gain( |
| u8buffer, |
| !is_big_endian, |
| is_unsigned_samples, |
| buffer, |
| wide_samples, |
| channels, |
| bps, /* source_bps */ |
| bps+shift, /* target_bps */ |
| decoder_session->replaygain.scale, |
| decoder_session->replaygain.spec.limiter == RGSS_LIMIT__HARD, /* hard_limit */ |
| decoder_session->replaygain.spec.noise_shaping != NOISE_SHAPING_NONE, /* do_dithering */ |
| &decoder_session->replaygain.dither_context |
| ); |
| } |
| /* first some special code for common cases */ |
| else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 2 && bps+shift == 16) { |
| FLAC__int16 *buf1_ = s16buffer + 1; |
| if(is_big_endian) |
| memcpy(s16buffer, ((FLAC__byte*)(buffer[0]))+2, sizeof(FLAC__int32) * wide_samples - 2); |
| else |
| memcpy(s16buffer, buffer[0], sizeof(FLAC__int32) * wide_samples); |
| for(sample = 0; sample < wide_samples; sample++, buf1_+=2) |
| *buf1_ = (FLAC__int16)buffer[1][sample]; |
| bytes_to_write = 4 * sample; |
| } |
| else if(is_big_endian == is_big_endian_host_ && !is_unsigned_samples && channels == 1 && bps+shift == 16) { |
| FLAC__int16 *buf1_ = s16buffer; |
| for(sample = 0; sample < wide_samples; sample++) |
| *buf1_++ = (FLAC__int16)buffer[0][sample]; |
| bytes_to_write = 2 * sample; |
| } |
| /* generic code for the rest */ |
| else if(bps+shift == 16) { |
| if(is_unsigned_samples) { |
| if(channels == 2) { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) { |
| u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000); |
| u16buffer[sample++] = (FLAC__uint16)(buffer[1][wide_sample] + 0x8000); |
| } |
| } |
| else if(channels == 1) { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| u16buffer[sample++] = (FLAC__uint16)(buffer[0][wide_sample] + 0x8000); |
| } |
| else { /* works for any 'channels' but above flavors are faster for 1 and 2 */ |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++, sample++) |
| u16buffer[sample] = (FLAC__uint16)(buffer[channel][wide_sample] + 0x8000); |
| } |
| } |
| else { |
| if(channels == 2) { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) { |
| s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]); |
| s16buffer[sample++] = (FLAC__int16)(buffer[1][wide_sample]); |
| } |
| } |
| else if(channels == 1) { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| s16buffer[sample++] = (FLAC__int16)(buffer[0][wide_sample]); |
| } |
| else { /* works for any 'channels' but above flavors are faster for 1 and 2 */ |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++, sample++) |
| s16buffer[sample] = (FLAC__int16)(buffer[channel][wide_sample]); |
| } |
| } |
| if(is_big_endian != is_big_endian_host_) { |
| unsigned char tmp; |
| const unsigned bytes = sample * 2; |
| for(byte = 0; byte < bytes; byte += 2) { |
| tmp = u8buffer[byte]; |
| u8buffer[byte] = u8buffer[byte+1]; |
| u8buffer[byte+1] = tmp; |
| } |
| } |
| bytes_to_write = 2 * sample; |
| } |
| else if(bps+shift == 24) { |
| if(is_unsigned_samples) { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++, sample++) |
| u32buffer[sample] = buffer[channel][wide_sample] + 0x800000; |
| } |
| else { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++, sample++) |
| s32buffer[sample] = buffer[channel][wide_sample]; |
| } |
| if(is_big_endian != is_big_endian_host_) { |
| unsigned char tmp; |
| const unsigned bytes = sample * 4; |
| for(byte = 0; byte < bytes; byte += 4) { |
| tmp = u8buffer[byte]; |
| u8buffer[byte] = u8buffer[byte+3]; |
| u8buffer[byte+3] = tmp; |
| tmp = u8buffer[byte+1]; |
| u8buffer[byte+1] = u8buffer[byte+2]; |
| u8buffer[byte+2] = tmp; |
| } |
| } |
| if(is_big_endian) { |
| unsigned lbyte; |
| const unsigned bytes = sample * 4; |
| for(lbyte = byte = 0; byte < bytes; ) { |
| byte++; |
| u8buffer[lbyte++] = u8buffer[byte++]; |
| u8buffer[lbyte++] = u8buffer[byte++]; |
| u8buffer[lbyte++] = u8buffer[byte++]; |
| } |
| } |
| else { |
| unsigned lbyte; |
| const unsigned bytes = sample * 4; |
| for(lbyte = byte = 0; byte < bytes; ) { |
| u8buffer[lbyte++] = u8buffer[byte++]; |
| u8buffer[lbyte++] = u8buffer[byte++]; |
| u8buffer[lbyte++] = u8buffer[byte++]; |
| byte++; |
| } |
| } |
| bytes_to_write = 3 * sample; |
| } |
| else if(bps+shift == 8) { |
| if(is_unsigned_samples) { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++, sample++) |
| u8buffer[sample] = (FLAC__uint8)(buffer[channel][wide_sample] + 0x80); |
| } |
| else { |
| for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++) |
| for(channel = 0; channel < channels; channel++, sample++) |
| s8buffer[sample] = (FLAC__int8)(buffer[channel][wide_sample]); |
| } |
| bytes_to_write = sample; |
| } |
| else { |
| FLAC__ASSERT(0); |
| /* double protection */ |
| decoder_session->abort_flag = true; |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| } |
| if(bytes_to_write > 0) { |
| if(flac__utils_fwrite(u8buffer, 1, bytes_to_write, fout) != bytes_to_write) { |
| /* if a pipe closed when writing to stdout, we let it go without an error message */ |
| if(errno == EPIPE && decoder_session->fout == stdout) |
| decoder_session->aborting_due_to_until = true; |
| decoder_session->abort_flag = true; |
| return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; |
| } |
| } |
| return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; |
| } |
| |
| void metadata_callback(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data) |
| { |
| DecoderSession *decoder_session = (DecoderSession*)client_data; |
| |
| if(decoder_session->analysis_mode) |
| FLAC__stream_decoder_get_decode_position(decoder, &decoder_session->decode_position); |
| |
| if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) { |
| FLAC__uint64 skip, until; |
| decoder_session->got_stream_info = true; |
| 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); |
| decoder_session->bps = metadata->data.stream_info.bits_per_sample; |
| decoder_session->channels = metadata->data.stream_info.channels; |
| decoder_session->sample_rate = metadata->data.stream_info.sample_rate; |
| |
| flac__utils_canonicalize_skip_until_specification(decoder_session->skip_specification, decoder_session->sample_rate); |
| FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0); |
| skip = (FLAC__uint64)decoder_session->skip_specification->value.samples; |
| |
| /* remember, metadata->data.stream_info.total_samples can be 0, meaning 'unknown' */ |
| if(metadata->data.stream_info.total_samples > 0 && skip >= metadata->data.stream_info.total_samples) { |
| flac__utils_printf(stderr, 1, "%s: ERROR trying to --skip more samples than in stream\n", decoder_session->inbasefilename); |
| decoder_session->abort_flag = true; |
| return; |
| } |
| else if(metadata->data.stream_info.total_samples == 0 && skip > 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR, can't --skip when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename); |
| decoder_session->abort_flag = true; |
| return; |
| } |
| FLAC__ASSERT(skip == 0 || 0 == decoder_session->cue_specification); |
| decoder_session->total_samples = metadata->data.stream_info.total_samples - skip; |
| |
| /* note that we use metadata->data.stream_info.total_samples instead of decoder_session->total_samples */ |
| if(!canonicalize_until_specification(decoder_session->until_specification, decoder_session->inbasefilename, decoder_session->sample_rate, skip, metadata->data.stream_info.total_samples)) { |
| decoder_session->abort_flag = true; |
| return; |
| } |
| FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0); |
| until = (FLAC__uint64)decoder_session->until_specification->value.samples; |
| |
| if(until > 0) { |
| FLAC__ASSERT(decoder_session->total_samples != 0); |
| FLAC__ASSERT(0 == decoder_session->cue_specification); |
| decoder_session->total_samples -= (metadata->data.stream_info.total_samples - until); |
| } |
| |
| if(decoder_session->bps < 4 || decoder_session->bps > 24) { |
| flac__utils_printf(stderr, 1, "%s: ERROR: bits per sample is %u, must be 4-24\n", decoder_session->inbasefilename, decoder_session->bps); |
| decoder_session->abort_flag = true; |
| return; |
| } |
| } |
| else if(metadata->type == FLAC__METADATA_TYPE_CUESHEET) { |
| /* remember, at this point, decoder_session->total_samples can be 0, meaning 'unknown' */ |
| if(decoder_session->total_samples == 0) { |
| flac__utils_printf(stderr, 1, "%s: ERROR can't use --cue when FLAC metadata has total sample count of 0\n", decoder_session->inbasefilename); |
| decoder_session->abort_flag = true; |
| return; |
| } |
| |
| 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); |
| |
| FLAC__ASSERT(!decoder_session->skip_specification->is_relative); |
| FLAC__ASSERT(decoder_session->skip_specification->value_is_samples); |
| |
| FLAC__ASSERT(!decoder_session->until_specification->is_relative); |
| FLAC__ASSERT(decoder_session->until_specification->value_is_samples); |
| |
| FLAC__ASSERT(decoder_session->skip_specification->value.samples >= 0); |
| FLAC__ASSERT(decoder_session->until_specification->value.samples >= 0); |
| FLAC__ASSERT((FLAC__uint64)decoder_session->until_specification->value.samples <= decoder_session->total_samples); |
| FLAC__ASSERT(decoder_session->skip_specification->value.samples <= decoder_session->until_specification->value.samples); |
| |
| decoder_session->total_samples = decoder_session->until_specification->value.samples - decoder_session->skip_specification->value.samples; |
| } |
| else if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) { |
| if (decoder_session->replaygain.spec.apply) { |
| double reference, gain, peak; |
| if (!(decoder_session->replaygain.apply = grabbag__replaygain_load_from_vorbiscomment(metadata, decoder_session->replaygain.spec.use_album_gain, /*strict=*/false, &reference, &gain, &peak))) { |
| 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"); |
| if(decoder_session->treat_warnings_as_errors) { |
| decoder_session->abort_flag = true; |
| return; |
| } |
| } |
| else { |
| const char *ls[] = { "no", "peak", "hard" }; |
| const char *ns[] = { "no", "low", "medium", "high" }; |
| decoder_session->replaygain.scale = grabbag__replaygain_compute_scale_factor(peak, gain, decoder_session->replaygain.spec.preamp, decoder_session->replaygain.spec.limiter == RGSS_LIMIT__PEAK); |
| FLAC__ASSERT(decoder_session->bps > 0 && decoder_session->bps <= 32); |
| FLAC__replaygain_synthesis__init_dither_context(&decoder_session->replaygain.dither_context, decoder_session->bps, decoder_session->replaygain.spec.noise_shaping); |
| 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]); |
| flac__utils_printf(stderr, 1, "%s: WARNING: applying ReplayGain is not lossless\n", decoder_session->inbasefilename); |
| /* don't check if(decoder_session->treat_warnings_as_errors) because the user explicitly asked for it */ |
| } |
| } |
| (void)flac__utils_get_channel_mask_tag(metadata, &decoder_session->channel_mask); |
| } |
| } |
| |
| void error_callback(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data) |
| { |
| DecoderSession *decoder_session = (DecoderSession*)client_data; |
| (void)decoder; |
| flac__utils_printf(stderr, 1, "%s: *** Got error code %d:%s\n", decoder_session->inbasefilename, status, FLAC__StreamDecoderErrorStatusString[status]); |
| if(!decoder_session->continue_through_decode_errors) { |
| decoder_session->abort_flag = true; |
| if(status == FLAC__STREAM_DECODER_ERROR_STATUS_UNPARSEABLE_STREAM) |
| decoder_session->aborting_due_to_unparseable = true; |
| } |
| } |
| |
| void print_error_with_init_status(const DecoderSession *d, const char *message, FLAC__StreamDecoderInitStatus init_status) |
| { |
| const int ilen = strlen(d->inbasefilename) + 1; |
| |
| flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message); |
| |
| flac__utils_printf(stderr, 1, "%*s init status = %s\n", ilen, "", FLAC__StreamDecoderInitStatusString[init_status]); |
| |
| /* print out some more info for some errors: */ |
| if (init_status == FLAC__STREAM_DECODER_INIT_STATUS_ERROR_OPENING_FILE) { |
| flac__utils_printf(stderr, 1, |
| "\n" |
| "An error occurred opening the input file; it is likely that it does not exist\n" |
| "or is not readable.\n" |
| ); |
| } |
| } |
| |
| void print_error_with_state(const DecoderSession *d, const char *message) |
| { |
| const int ilen = strlen(d->inbasefilename) + 1; |
| |
| flac__utils_printf(stderr, 1, "\n%s: %s\n", d->inbasefilename, message); |
| flac__utils_printf(stderr, 1, "%*s state = %s\n", ilen, "", FLAC__stream_decoder_get_resolved_state_string(d->decoder)); |
| |
| /* print out some more info for some errors: */ |
| if (d->aborting_due_to_unparseable) { |
| flac__utils_printf(stderr, 1, |
| "\n" |
| "The FLAC stream may have been created by a more advanced encoder. Try\n" |
| " metaflac --show-vendor-tag %s\n" |
| "If the version number is greater than %s, this decoder is probably\n" |
| "not able to decode the file. If the version number is not, the file\n" |
| "may be corrupted, or you may have found a bug. In this case please\n" |
| "submit a bug report to\n" |
| " http://sourceforge.net/bugs/?func=addbug&group_id=13478\n" |
| "Make sure to use the \"Monitor\" feature to monitor the bug status.\n", |
| d->inbasefilename, FLAC__VERSION_STRING |
| ); |
| } |
| } |
| |
| void print_stats(const DecoderSession *decoder_session) |
| { |
| if(flac__utils_verbosity_ >= 2) { |
| #if defined _MSC_VER || defined __MINGW32__ |
| /* with MSVC you have to spoon feed it the casting */ |
| const double progress = (double)(FLAC__int64)decoder_session->samples_processed / (double)(FLAC__int64)decoder_session->total_samples * 100.0; |
| #else |
| const double progress = (double)decoder_session->samples_processed / (double)decoder_session->total_samples * 100.0; |
| #endif |
| if(decoder_session->total_samples > 0) { |
| fprintf(stderr, "\r%s: %s%u%% complete", |
| decoder_session->inbasefilename, |
| decoder_session->test_only? "testing, " : decoder_session->analysis_mode? "analyzing, " : "", |
| (unsigned)floor(progress + 0.5) |
| ); |
| } |
| else { |
| fprintf(stderr, "\r%s: %s %u samples", |
| decoder_session->inbasefilename, |
| decoder_session->test_only? "tested" : decoder_session->analysis_mode? "analyzed" : "wrote", |
| (unsigned)decoder_session->samples_processed |
| ); |
| } |
| } |
| } |