/* flac - Command-line FLAC encoder/decoder
* Copyright (C) 2000-2009 Josh Coalson
* Copyright (C) 2011-2014 Xiph.Org Foundation
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <locale.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#if !defined _MSC_VER && !defined __MINGW32__
/* unlink is in stdio.h in VC++ */
#include <unistd.h> /* for unlink() */
#endif
#include "FLAC/all.h"
#include "share/alloc.h"
#include "share/grabbag.h"
#include "share/compat.h"
#include "share/safe_str.h"
#include "analyze.h"
#include "decode.h"
#include "encode.h"
#include "local_string_utils.h" /* for flac__strlcat() and flac__strlcpy() */
#include "utils.h"
#include "vorbiscomment.h"
#if 0
/*[JEC] was:#if HAVE_GETOPT_LONG*/
/*[JEC] see flac/include/share/getopt.h as to why the change */
# include <getopt.h>
#else
# include "share/getopt.h"
#endif
static int do_it(void);
static FLAC__bool init_options(void);
static int parse_options(int argc, char *argv[]);
static int parse_option(int short_option, const char *long_option, const char *option_argument);
static void free_options(void);
static void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value);
static void add_compression_setting_string(compression_setting_type_t type, const char *value);
static void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value);
static int usage_error(const char *message, ...);
static void short_usage(void);
static void show_version(void);
static void show_help(void);
static void show_explain(void);
static void format_mistake(const char *infilename, FileFormat wrong, FileFormat right);
static int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file);
static int decode_file(const char *infilename);
static const char *get_encoded_outfilename(const char *infilename);
static const char *get_decoded_outfilename(const char *infilename);
static const char *get_outfilename(const char *infilename, const char *suffix);
static void die(const char *message);
static int conditional_fclose(FILE *f);
static char *local_strdup(const char *source);
/*
* share__getopt format struct; note that for long options with no
* short option equivalent we just set the 'val' field to 0.
*/
static struct share__option long_options_[] = {
/*
* general options
*/
{ "help" , share__no_argument, 0, 'h' },
{ "explain" , share__no_argument, 0, 'H' },
{ "version" , share__no_argument, 0, 'v' },
{ "decode" , share__no_argument, 0, 'd' },
{ "analyze" , share__no_argument, 0, 'a' },
{ "test" , share__no_argument, 0, 't' },
{ "stdout" , share__no_argument, 0, 'c' },
{ "silent" , share__no_argument, 0, 's' },
{ "totally-silent" , share__no_argument, 0, 0 },
{ "warnings-as-errors" , share__no_argument, 0, 'w' },
{ "force" , share__no_argument, 0, 'f' },
{ "delete-input-file" , share__no_argument, 0, 0 },
{ "preserve-modtime" , share__no_argument, 0, 0 },
{ "keep-foreign-metadata" , share__no_argument, 0, 0 },
{ "output-prefix" , share__required_argument, 0, 0 },
{ "output-name" , share__required_argument, 0, 'o' },
{ "skip" , share__required_argument, 0, 0 },
{ "until" , share__required_argument, 0, 0 },
{ "channel-map" , share__required_argument, 0, 0 }, /* undocumented */
/*
* decoding options
*/
{ "decode-through-errors", share__no_argument, 0, 'F' },
{ "cue" , share__required_argument, 0, 0 },
{ "apply-replaygain-which-is-not-lossless", share__optional_argument, 0, 0 }, /* undocumented */
/*
* encoding options
*/
{ "cuesheet" , share__required_argument, 0, 0 },
{ "no-cued-seekpoints" , share__no_argument, 0, 0 },
{ "picture" , share__required_argument, 0, 0 },
{ "tag" , share__required_argument, 0, 'T' },
{ "tag-from-file" , share__required_argument, 0, 0 },
{ "compression-level-0" , share__no_argument, 0, '0' },
{ "compression-level-1" , share__no_argument, 0, '1' },
{ "compression-level-2" , share__no_argument, 0, '2' },
{ "compression-level-3" , share__no_argument, 0, '3' },
{ "compression-level-4" , share__no_argument, 0, '4' },
{ "compression-level-5" , share__no_argument, 0, '5' },
{ "compression-level-6" , share__no_argument, 0, '6' },
{ "compression-level-7" , share__no_argument, 0, '7' },
{ "compression-level-8" , share__no_argument, 0, '8' },
{ "compression-level-9" , share__no_argument, 0, '9' },
{ "best" , share__no_argument, 0, '8' },
{ "fast" , share__no_argument, 0, '0' },
{ "verify" , share__no_argument, 0, 'V' },
{ "force-raw-format" , share__no_argument, 0, 0 },
{ "force-aiff-format" , share__no_argument, 0, 0 },
{ "force-rf64-format" , share__no_argument, 0, 0 },
{ "force-wave64-format" , share__no_argument, 0, 0 },
{ "lax" , share__no_argument, 0, 0 },
{ "replay-gain" , share__no_argument, 0, 0 },
{ "ignore-chunk-sizes" , share__no_argument, 0, 0 },
{ "sector-align" , share__no_argument, 0, 0 }, /* DEPRECATED */
{ "seekpoint" , share__required_argument, 0, 'S' },
{ "padding" , share__required_argument, 0, 'P' },
#if FLAC__HAS_OGG
{ "ogg" , share__no_argument, 0, 0 },
{ "serial-number" , share__required_argument, 0, 0 },
#endif
{ "blocksize" , share__required_argument, 0, 'b' },
{ "exhaustive-model-search" , share__no_argument, 0, 'e' },
{ "max-lpc-order" , share__required_argument, 0, 'l' },
{ "apodization" , share__required_argument, 0, 'A' },
{ "mid-side" , share__no_argument, 0, 'm' },
{ "adaptive-mid-side" , share__no_argument, 0, 'M' },
{ "qlp-coeff-precision-search", share__no_argument, 0, 'p' },
{ "qlp-coeff-precision" , share__required_argument, 0, 'q' },
{ "rice-partition-order" , share__required_argument, 0, 'r' },
{ "endian" , share__required_argument, 0, 0 },
{ "channels" , share__required_argument, 0, 0 },
{ "bps" , share__required_argument, 0, 0 },
{ "sample-rate" , share__required_argument, 0, 0 },
{ "sign" , share__required_argument, 0, 0 },
{ "input-size" , share__required_argument, 0, 0 },
{ "error-on-compression-fail" , share__no_argument, 0, 0 },
/*
* analysis options
*/
{ "residual-gnuplot", share__no_argument, 0, 0 },
{ "residual-text", share__no_argument, 0, 0 },
/*
* negatives
*/
{ "no-preserve-modtime" , share__no_argument, 0, 0 },
{ "no-decode-through-errors" , share__no_argument, 0, 0 },
{ "no-silent" , share__no_argument, 0, 0 },
{ "no-force" , share__no_argument, 0, 0 },
{ "no-seektable" , share__no_argument, 0, 0 },
{ "no-delete-input-file" , share__no_argument, 0, 0 },
{ "no-keep-foreign-metadata" , share__no_argument, 0, 0 },
{ "no-replay-gain" , share__no_argument, 0, 0 },
{ "no-ignore-chunk-sizes" , share__no_argument, 0, 0 },
{ "no-sector-align" , share__no_argument, 0, 0 }, /* DEPRECATED */
{ "no-utf8-convert" , share__no_argument, 0, 0 },
{ "no-lax" , share__no_argument, 0, 0 },
#if FLAC__HAS_OGG
{ "no-ogg" , share__no_argument, 0, 0 },
#endif
{ "no-exhaustive-model-search", share__no_argument, 0, 0 },
{ "no-mid-side" , share__no_argument, 0, 0 },
{ "no-adaptive-mid-side" , share__no_argument, 0, 0 },
{ "no-qlp-coeff-prec-search" , share__no_argument, 0, 0 },
{ "no-padding" , share__no_argument, 0, 0 },
{ "no-verify" , share__no_argument, 0, 0 },
{ "no-warnings-as-errors" , share__no_argument, 0, 0 },
{ "no-residual-gnuplot" , share__no_argument, 0, 0 },
{ "no-residual-text" , share__no_argument, 0, 0 },
{ "no-error-on-compression-fail", share__no_argument, 0, 0 },
/*
* undocumented debugging options for the test suite
*/
{ "disable-constant-subframes", share__no_argument, 0, 0 },
{ "disable-fixed-subframes" , share__no_argument, 0, 0 },
{ "disable-verbatim-subframes", share__no_argument, 0, 0 },
{ "no-md5-sum" , share__no_argument, 0, 0 },
{0, 0, 0, 0}
};
/*
* global to hold command-line option values
*/
static struct {
FLAC__bool show_help;
FLAC__bool show_explain;
FLAC__bool show_version;
FLAC__bool mode_decode;
FLAC__bool verify;
FLAC__bool treat_warnings_as_errors;
FLAC__bool force_file_overwrite;
FLAC__bool continue_through_decode_errors;
replaygain_synthesis_spec_t replaygain_synthesis_spec;
FLAC__bool lax;
FLAC__bool test_only;
FLAC__bool analyze;
FLAC__bool use_ogg;
FLAC__bool has_serial_number; /* true iff --serial-number was used */
long serial_number; /* this is the Ogg serial number and is unused for native FLAC */
FLAC__bool force_to_stdout;
FLAC__bool force_raw_format;
FLAC__bool force_aiff_format;
FLAC__bool force_rf64_format;
FLAC__bool force_wave64_format;
FLAC__bool delete_input;
FLAC__bool preserve_modtime;
FLAC__bool keep_foreign_metadata;
FLAC__bool replay_gain;
FLAC__bool ignore_chunk_sizes;
FLAC__bool sector_align;
FLAC__bool utf8_convert; /* true by default, to convert tag strings from locale to utf-8, false if --no-utf8-convert used */
const char *cmdline_forced_outfilename;
const char *output_prefix;
analysis_options aopts;
int padding; /* -1 => no -P options were given, 0 => -P- was given, else -P value */
size_t num_compression_settings;
compression_setting_t compression_settings[64]; /* bad MAGIC NUMBER but buffer overflow is checked */
const char *skip_specification;
const char *until_specification;
const char *cue_specification;
int format_is_big_endian;
int format_is_unsigned_samples;
int format_channels;
int format_bps;
int format_sample_rate;
FLAC__off_t format_input_size;
char requested_seek_points[5000]; /* bad MAGIC NUMBER but buffer overflow is checked */
int num_requested_seek_points; /* -1 => no -S options were given, 0 => -S- was given */
const char *cuesheet_filename;
FLAC__bool cued_seekpoints;
FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
FLAC__bool error_on_compression_fail;
unsigned num_files;
char **filenames;
FLAC__StreamMetadata *vorbis_comment;
FLAC__StreamMetadata *pictures[64];
unsigned num_pictures;
struct {
FLAC__bool disable_constant_subframes;
FLAC__bool disable_fixed_subframes;
FLAC__bool disable_verbatim_subframes;
FLAC__bool do_md5;
} debug;
} option_values;
/*
* miscellaneous globals
*/
static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */ /* DEPRECATED */
static FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
static unsigned align_reservoir_samples = 0; /* 0 .. 587 */
int main(int argc, char *argv[])
{
int retval = 0;
#ifdef __EMX__
_response(&argc, &argv);
_wildcard(&argc, &argv);
#endif
#ifdef _WIN32
if (get_utf8_argv(&argc, &argv) != 0) {
fprintf(stderr, "ERROR: failed to convert command line parameters to UTF-8\n");
return 1;
}
#endif
srand((unsigned)time(0));
#ifdef _WIN32
{
const char *var;
var = getenv("LC_ALL");
if (!var)
var = getenv("LC_NUMERIC");
if (!var)
var = getenv("LANG");
if (!var || strcmp(var, "C") != 0)
setlocale(LC_ALL, "");
}
#else
setlocale(LC_ALL, "");
#endif
if(!init_options()) {
flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
retval = 1;
}
else {
if((retval = parse_options(argc, argv)) == 0)
retval = do_it();
}
free_options();
return retval;
}
int do_it(void)
{
int retval = 0;
if(option_values.show_version) {
show_version();
return 0;
}
else if(option_values.show_explain) {
show_explain();
return 0;
}
else if(option_values.show_help) {
show_help();
return 0;
}
else {
if(option_values.num_files == 0) {
if(flac__utils_verbosity_ >= 1)
short_usage();
return 0;
}
/*
* tweak options; validate the values
*/
if(!option_values.mode_decode) {
if(0 != option_values.cue_specification)
return usage_error("ERROR: --cue is not allowed in test mode\n");
}
else {
if(option_values.test_only) {
if(0 != option_values.skip_specification)
return usage_error("ERROR: --skip is not allowed in test mode\n");
if(0 != option_values.until_specification)
return usage_error("ERROR: --until is not allowed in test mode\n");
if(0 != option_values.cue_specification)
return usage_error("ERROR: --cue is not allowed in test mode\n");
if(0 != option_values.analyze)
return usage_error("ERROR: analysis mode (-a/--analyze) and test mode (-t/--test) cannot be used together\n");
}
}
if(0 != option_values.cue_specification && (0 != option_values.skip_specification || 0 != option_values.until_specification))
return usage_error("ERROR: --cue may not be combined with --skip or --until\n");
if(option_values.format_channels >= 0) {
if(option_values.format_channels == 0 || (unsigned)option_values.format_channels > FLAC__MAX_CHANNELS)
return usage_error("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", option_values.format_channels, FLAC__MAX_CHANNELS);
}
if(option_values.format_bps >= 0) {
if(option_values.format_bps != 8 && option_values.format_bps != 16 && option_values.format_bps != 24)
return usage_error("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", option_values.format_bps);
}
if(option_values.format_sample_rate >= 0) {
if(!FLAC__format_sample_rate_is_valid(option_values.format_sample_rate))
return usage_error("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", option_values.format_sample_rate, FLAC__MAX_SAMPLE_RATE);
}
if((option_values.force_raw_format?1:0) + (option_values.force_aiff_format?1:0) + (option_values.force_rf64_format?1:0) + (option_values.force_wave64_format?1:0) > 1)
return usage_error("ERROR: only one of --force-raw-format/--force-aiff-format/--force-rf64-format/--force-wave64-format allowed\n");
if(option_values.mode_decode) {
if(!option_values.force_raw_format) {
if(option_values.format_is_big_endian >= 0)
return usage_error("ERROR: --endian only allowed with --force-raw-format\n");
if(option_values.format_is_unsigned_samples >= 0)
return usage_error("ERROR: --sign only allowed with --force-raw-format\n");
}
if(option_values.format_channels >= 0)
return usage_error("ERROR: --channels not allowed with --decode\n");
if(option_values.format_bps >= 0)
return usage_error("ERROR: --bps not allowed with --decode\n");
if(option_values.format_sample_rate >= 0)
return usage_error("ERROR: --sample-rate not allowed with --decode\n");
}
if(option_values.ignore_chunk_sizes) {
if(option_values.mode_decode)
return usage_error("ERROR: --ignore-chunk-sizes only allowed for encoding\n");
if(0 != option_values.sector_align)
return usage_error("ERROR: --ignore-chunk-sizes not allowed with --sector-align\n");
if(0 != option_values.until_specification)
return usage_error("ERROR: --ignore-chunk-sizes not allowed with --until\n");
if(0 != option_values.cue_specification)
return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cue\n");
if(0 != option_values.cuesheet_filename)
return usage_error("ERROR: --ignore-chunk-sizes not allowed with --cuesheet\n");
}
if(option_values.sector_align) {
if(option_values.mode_decode)
return usage_error("ERROR: --sector-align only allowed for encoding\n");
if(0 != option_values.skip_specification)
return usage_error("ERROR: --sector-align not allowed with --skip\n");
if(0 != option_values.until_specification)
return usage_error("ERROR: --sector-align not allowed with --until\n");
if(0 != option_values.cue_specification)
return usage_error("ERROR: --sector-align not allowed with --cue\n");
if(option_values.format_channels >= 0 && option_values.format_channels != 2)
return usage_error("ERROR: --sector-align can only be done with stereo input\n");
if(option_values.format_bps >= 0 && option_values.format_bps != 16)
return usage_error("ERROR: --sector-align can only be done with 16-bit samples\n");
if(option_values.format_sample_rate >= 0 && option_values.format_sample_rate != 44100)
return usage_error("ERROR: --sector-align can only be done with a sample rate of 44100\n");
}
if(option_values.replay_gain) {
if(option_values.force_to_stdout)
return usage_error("ERROR: --replay-gain not allowed with -c/--stdout\n");
if(option_values.mode_decode)
return usage_error("ERROR: --replay-gain only allowed for encoding\n");
if(option_values.format_channels > 2)
return usage_error("ERROR: --replay-gain can only be done with mono/stereo input\n");
if(option_values.format_sample_rate >= 0 && !grabbag__replaygain_is_valid_sample_frequency(option_values.format_sample_rate))
return usage_error("ERROR: invalid sample rate used with --replay-gain\n");
if(
(option_values.padding >= 0 && option_values.padding < (int)GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED) ||
(option_values.padding < 0 && FLAC_ENCODE__DEFAULT_PADDING < (int)GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED)
) {
flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
}
}
if(option_values.num_files > 1 && option_values.cmdline_forced_outfilename) {
return usage_error("ERROR: -o/--output-name cannot be used with multiple files\n");
}
if(option_values.cmdline_forced_outfilename && option_values.output_prefix) {
return usage_error("ERROR: --output-prefix conflicts with -o/--output-name\n");
}
if(!option_values.mode_decode && 0 != option_values.cuesheet_filename && option_values.num_files > 1) {
return usage_error("ERROR: --cuesheet cannot be used when encoding multiple files\n");
}
if(option_values.keep_foreign_metadata) {
/* we're not going to try and support the re-creation of broken WAVE files */
if(option_values.ignore_chunk_sizes)
return usage_error("ERROR: using --keep-foreign-metadata cannot be used with --ignore-chunk-sizes\n");
if(option_values.test_only)
return usage_error("ERROR: --keep-foreign-metadata is not allowed in test mode\n");
if(option_values.analyze)
return usage_error("ERROR: --keep-foreign-metadata is not allowed in analyis mode\n");
flac__utils_printf(stderr, 1, "NOTE: --keep-foreign-metadata is a new feature; make sure to test the output file before deleting the original.\n");
}
}
flac__utils_printf(stderr, 2, "\n");
flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000-2009 Josh Coalson, 2011-2014 Xiph.Org Foundation\n", FLAC__VERSION_STRING);
flac__utils_printf(stderr, 2, "flac comes with ABSOLUTELY NO WARRANTY. This is free software, and you are\n");
flac__utils_printf(stderr, 2, "welcome to redistribute it under certain conditions. Type `flac' for details.\n\n");
if(option_values.mode_decode) {
FLAC__bool first = true;
if(option_values.num_files == 0) {
retval = decode_file("-");
}
else {
unsigned i;
if(option_values.num_files > 1)
option_values.cmdline_forced_outfilename = 0;
for(i = 0, retval = 0; i < option_values.num_files; i++) {
if(0 == strcmp(option_values.filenames[i], "-") && !first)
continue;
retval |= decode_file(option_values.filenames[i]);
first = false;
}
}
}
else { /* encode */
FLAC__bool first = true;
if(option_values.ignore_chunk_sizes)
flac__utils_printf(stderr, 1, "INFO: Make sure you know what you're doing when using --ignore-chunk-sizes.\n Improper use can cause flac to encode non-audio data as audio.\n");
if(option_values.num_files == 0) {
retval = encode_file("-", first, true);
}
else {
unsigned i;
if(option_values.num_files > 1)
option_values.cmdline_forced_outfilename = 0;
for(i = 0, retval = 0; i < option_values.num_files; i++) {
if(0 == strcmp(option_values.filenames[i], "-") && !first)
continue;
retval |= encode_file(option_values.filenames[i], first, i == (option_values.num_files-1));
first = false;
}
if(option_values.replay_gain && retval == 0) {
float album_gain, album_peak;
grabbag__replaygain_get_album(&album_gain, &album_peak);
for(i = 0; i < option_values.num_files; i++) {
const char *error, *outfilename = get_encoded_outfilename(option_values.filenames[i]);
if(0 == outfilename) {
flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", option_values.filenames[i]);
return 1;
}
if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, option_values.preserve_modtime))) {
flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags (%s)\n", outfilename, error);
retval = 1;
}
}
}
}
}
return retval;
}
FLAC__bool init_options(void)
{
option_values.show_help = false;
option_values.show_explain = false;
option_values.mode_decode = false;
option_values.verify = false;
option_values.treat_warnings_as_errors = false;
option_values.force_file_overwrite = false;
option_values.continue_through_decode_errors = false;
option_values.replaygain_synthesis_spec.apply = false;
option_values.replaygain_synthesis_spec.use_album_gain = true;
option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_LOW;
option_values.replaygain_synthesis_spec.preamp = 0.0;
option_values.lax = false;
option_values.test_only = false;
option_values.analyze = false;
option_values.use_ogg = false;
option_values.has_serial_number = false;
option_values.serial_number = 0;
option_values.force_to_stdout = false;
option_values.force_raw_format = false;
option_values.force_aiff_format = false;
option_values.force_rf64_format = false;
option_values.force_wave64_format = false;
option_values.delete_input = false;
option_values.preserve_modtime = true;
option_values.keep_foreign_metadata = false;
option_values.replay_gain = false;
option_values.ignore_chunk_sizes = false;
option_values.sector_align = false;
option_values.utf8_convert = true;
option_values.cmdline_forced_outfilename = 0;
option_values.output_prefix = 0;
option_values.aopts.do_residual_text = false;
option_values.aopts.do_residual_gnuplot = false;
option_values.padding = -1;
option_values.num_compression_settings = 1;
option_values.compression_settings[0].type = CST_COMPRESSION_LEVEL;
option_values.compression_settings[0].value.t_unsigned = 5;
option_values.skip_specification = 0;
option_values.until_specification = 0;
option_values.cue_specification = 0;
option_values.format_is_big_endian = -1;
option_values.format_is_unsigned_samples = -1;
option_values.format_channels = -1;
option_values.format_bps = -1;
option_values.format_sample_rate = -1;
option_values.format_input_size = (FLAC__off_t)(-1);
option_values.requested_seek_points[0] = '\0';
option_values.num_requested_seek_points = -1;
option_values.cuesheet_filename = 0;
option_values.cued_seekpoints = true;
option_values.channel_map_none = false;
option_values.error_on_compression_fail = false;
option_values.num_files = 0;
option_values.filenames = 0;
if(0 == (option_values.vorbis_comment = FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT)))
return false;
option_values.num_pictures = 0;
option_values.debug.disable_constant_subframes = false;
option_values.debug.disable_fixed_subframes = false;
option_values.debug.disable_verbatim_subframes = false;
option_values.debug.do_md5 = true;
return true;
}
int parse_options(int argc, char *argv[])
{
int short_option;
int option_index = 1;
FLAC__bool had_error = false;
const char *short_opts = "0123456789aA:b:cdefFhHl:mMo:pP:q:r:sS:tT:vVw";
while ((short_option = share__getopt_long(argc, argv, short_opts, long_options_, &option_index)) != -1) {
switch (short_option) {
case 0: /* long option with no equivalent short option */
had_error |= (parse_option(short_option, long_options_[option_index].name, share__optarg) != 0);
break;
case '?':
case ':':
had_error = true;
break;
default: /* short option */
had_error |= (parse_option(short_option, 0, share__optarg) != 0);
break;
}
}
if(had_error) {
return 1;
}
FLAC__ASSERT(share__optind <= argc);
option_values.num_files = argc - share__optind;
if(option_values.num_files > 0) {
unsigned i = 0;
if(0 == (option_values.filenames = malloc(sizeof(char*) * option_values.num_files)))
die("out of memory allocating space for file names list");
while(share__optind < argc)
option_values.filenames[i++] = local_strdup(argv[share__optind++]);
}
return 0;
}
int parse_option(int short_option, const char *long_option, const char *option_argument)
{
const char *violation;
if(short_option == 0) {
FLAC__ASSERT(0 != long_option);
if(0 == strcmp(long_option, "totally-silent")) {
flac__utils_verbosity_ = 0;
}
else if(0 == strcmp(long_option, "delete-input-file")) {
option_values.delete_input = true;
}
else if(0 == strcmp(long_option, "preserve-modtime")) {
option_values.preserve_modtime = true;
}
else if(0 == strcmp(long_option, "keep-foreign-metadata")) {
option_values.keep_foreign_metadata = true;
}
else if(0 == strcmp(long_option, "output-prefix")) {
FLAC__ASSERT(0 != option_argument);
option_values.output_prefix = option_argument;
}
else if(0 == strcmp(long_option, "skip")) {
FLAC__ASSERT(0 != option_argument);
option_values.skip_specification = option_argument;
}
else if(0 == strcmp(long_option, "until")) {
FLAC__ASSERT(0 != option_argument);
option_values.until_specification = option_argument;
}
else if(0 == strcmp(long_option, "input-size")) {
FLAC__ASSERT(0 != option_argument);
{
char *end;
FLAC__int64 ix;
ix = strtoll(option_argument, &end, 10);
if(0 == strlen(option_argument) || *end)
return usage_error("ERROR: --%s must be a number\n", long_option);
option_values.format_input_size = (FLAC__off_t)ix;
if(option_values.format_input_size != ix) /* check if FLAC__off_t is smaller than long long */
return usage_error("ERROR: --%s too large; this build of flac does not support filesizes over 2GB\n", long_option);
if(option_values.format_input_size <= 0)
return usage_error("ERROR: --%s must be > 0\n", long_option);
}
}
else if(0 == strcmp(long_option, "cue")) {
FLAC__ASSERT(0 != option_argument);
option_values.cue_specification = option_argument;
}
else if(0 == strcmp(long_option, "apply-replaygain-which-is-not-lossless")) {
option_values.replaygain_synthesis_spec.apply = true;
if (0 != option_argument) {
char *p;
option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__NONE;
option_values.replaygain_synthesis_spec.noise_shaping = NOISE_SHAPING_NONE;
option_values.replaygain_synthesis_spec.preamp = strtod(option_argument, &p);
for ( ; *p; p++) {
if (*p == 'a')
option_values.replaygain_synthesis_spec.use_album_gain = true;
else if (*p == 't')
option_values.replaygain_synthesis_spec.use_album_gain = false;
else if (*p == 'l')
option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__PEAK;
else if (*p == 'L')
option_values.replaygain_synthesis_spec.limiter = RGSS_LIMIT__HARD;
else if (*p == 'n' && p[1] >= '0' && p[1] <= '3') {
option_values.replaygain_synthesis_spec.noise_shaping = p[1] - '0';
p++;
}
else
return usage_error("ERROR: bad specification string \"%s\" for --%s\n", option_argument, long_option);
}
}
}
else if(0 == strcmp(long_option, "channel-map")) {
if (0 == option_argument || strcmp(option_argument, "none"))
return usage_error("ERROR: only --channel-map=none currently supported\n");
option_values.channel_map_none = true;
}
else if(0 == strcmp(long_option, "cuesheet")) {
FLAC__ASSERT(0 != option_argument);
option_values.cuesheet_filename = option_argument;
}
else if(0 == strcmp(long_option, "picture")) {
const unsigned max_pictures = sizeof(option_values.pictures)/sizeof(option_values.pictures[0]);
FLAC__ASSERT(0 != option_argument);
if(option_values.num_pictures >= max_pictures)
return usage_error("ERROR: too many --picture arguments, only %u allowed\n", max_pictures);
if(0 == (option_values.pictures[option_values.num_pictures] = grabbag__picture_parse_specification(option_argument, &violation)))
return usage_error("ERROR: (--picture) %s\n", violation);
option_values.num_pictures++;
}
else if(0 == strcmp(long_option, "tag-from-file")) {
FLAC__ASSERT(0 != option_argument);
if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/true, /*raw=*/!option_values.utf8_convert, &violation))
return usage_error("ERROR: (--tag-from-file) %s\n", violation);
}
else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
option_values.cued_seekpoints = false;
}
else if(0 == strcmp(long_option, "force-raw-format")) {
option_values.force_raw_format = true;
}
else if(0 == strcmp(long_option, "force-aiff-format")) {
option_values.force_aiff_format = true;
}
else if(0 == strcmp(long_option, "force-rf64-format")) {
option_values.force_rf64_format = true;
}
else if(0 == strcmp(long_option, "force-wave64-format")) {
option_values.force_wave64_format = true;
}
else if(0 == strcmp(long_option, "lax")) {
option_values.lax = true;
}
else if(0 == strcmp(long_option, "replay-gain")) {
option_values.replay_gain = true;
}
else if(0 == strcmp(long_option, "ignore-chunk-sizes")) {
option_values.ignore_chunk_sizes = true;
}
else if(0 == strcmp(long_option, "sector-align")) {
flac__utils_printf(stderr, 1, "WARNING: --sector-align is DEPRECATED and may not exist in future versions of flac.\n");
flac__utils_printf(stderr, 1, " shntool provides similar functionality\n");
option_values.sector_align = true;
}
#if FLAC__HAS_OGG
else if(0 == strcmp(long_option, "ogg")) {
option_values.use_ogg = true;
}
else if(0 == strcmp(long_option, "serial-number")) {
option_values.has_serial_number = true;
option_values.serial_number = atol(option_argument);
}
#endif
else if(0 == strcmp(long_option, "endian")) {
FLAC__ASSERT(0 != option_argument);
if(0 == strncmp(option_argument, "big", strlen(option_argument)))
option_values.format_is_big_endian = true;
else if(0 == strncmp(option_argument, "little", strlen(option_argument)))
option_values.format_is_big_endian = false;
else
return usage_error("ERROR: argument to --endian must be \"big\" or \"little\"\n");
}
else if(0 == strcmp(long_option, "channels")) {
FLAC__ASSERT(0 != option_argument);
option_values.format_channels = atoi(option_argument);
}
else if(0 == strcmp(long_option, "bps")) {
FLAC__ASSERT(0 != option_argument);
option_values.format_bps = atoi(option_argument);
}
else if(0 == strcmp(long_option, "sample-rate")) {
FLAC__ASSERT(0 != option_argument);
option_values.format_sample_rate = atoi(option_argument);
}
else if(0 == strcmp(long_option, "sign")) {
FLAC__ASSERT(0 != option_argument);
if(0 == strncmp(option_argument, "signed", strlen(option_argument)))
option_values.format_is_unsigned_samples = false;
else if(0 == strncmp(option_argument, "unsigned", strlen(option_argument)))
option_values.format_is_unsigned_samples = true;
else
return usage_error("ERROR: argument to --sign must be \"signed\" or \"unsigned\"\n");
}
else if(0 == strcmp(long_option, "residual-gnuplot")) {
option_values.aopts.do_residual_gnuplot = true;
}
else if(0 == strcmp(long_option, "residual-text")) {
option_values.aopts.do_residual_text = true;
}
/*
* negatives
*/
else if(0 == strcmp(long_option, "no-preserve-modtime")) {
option_values.preserve_modtime = false;
}
else if(0 == strcmp(long_option, "no-decode-through-errors")) {
option_values.continue_through_decode_errors = false;
}
else if(0 == strcmp(long_option, "no-silent")) {
flac__utils_verbosity_ = 2;
}
else if(0 == strcmp(long_option, "no-force")) {
option_values.force_file_overwrite = false;
}
else if(0 == strcmp(long_option, "no-seektable")) {
option_values.num_requested_seek_points = 0;
option_values.requested_seek_points[0] = '\0';
}
else if(0 == strcmp(long_option, "no-delete-input-file")) {
option_values.delete_input = false;
}
else if(0 == strcmp(long_option, "no-keep-foreign-metadata")) {
option_values.keep_foreign_metadata = false;
}
else if(0 == strcmp(long_option, "no-replay-gain")) {
option_values.replay_gain = false;
}
else if(0 == strcmp(long_option, "no-ignore-chunk-sizes")) {
option_values.ignore_chunk_sizes = false;
}
else if(0 == strcmp(long_option, "no-sector-align")) {
option_values.sector_align = false;
}
else if(0 == strcmp(long_option, "no-utf8-convert")) {
option_values.utf8_convert = false;
}
else if(0 == strcmp(long_option, "no-lax")) {
option_values.lax = false;
}
#if FLAC__HAS_OGG
else if(0 == strcmp(long_option, "no-ogg")) {
option_values.use_ogg = false;
}
#endif
else if(0 == strcmp(long_option, "no-exhaustive-model-search")) {
add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, false);
}
else if(0 == strcmp(long_option, "no-mid-side")) {
add_compression_setting_bool(CST_DO_MID_SIDE, false);
add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
}
else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
add_compression_setting_bool(CST_DO_MID_SIDE, false);
add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
}
else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, false);
}
else if(0 == strcmp(long_option, "no-padding")) {
option_values.padding = 0;
}
else if(0 == strcmp(long_option, "no-verify")) {
option_values.verify = false;
}
else if(0 == strcmp(long_option, "no-warnings-as-errors")) {
option_values.treat_warnings_as_errors = false;
}
else if(0 == strcmp(long_option, "no-residual-gnuplot")) {
option_values.aopts.do_residual_gnuplot = false;
}
else if(0 == strcmp(long_option, "no-residual-text")) {
option_values.aopts.do_residual_text = false;
}
else if(0 == strcmp(long_option, "disable-constant-subframes")) {
option_values.debug.disable_constant_subframes = true;
}
else if(0 == strcmp(long_option, "disable-fixed-subframes")) {
option_values.debug.disable_fixed_subframes = true;
}
else if(0 == strcmp(long_option, "disable-verbatim-subframes")) {
option_values.debug.disable_verbatim_subframes = true;
}
else if(0 == strcmp(long_option, "no-md5-sum")) {
option_values.debug.do_md5 = false;
}
else if(0 == strcmp(long_option, "no-error-on-compression-fail")) {
option_values.error_on_compression_fail = false;
}
else if(0 == strcmp(long_option, "error-on-compression-fail")) {
option_values.error_on_compression_fail = true;
}
}
else {
switch(short_option) {
case 'h':
option_values.show_help = true;
break;
case 'H':
option_values.show_explain = true;
break;
case 'v':
option_values.show_version = true;
break;
case 'd':
option_values.mode_decode = true;
break;
case 'a':
option_values.mode_decode = true;
option_values.analyze = true;
break;
case 't':
option_values.mode_decode = true;
option_values.test_only = true;
break;
case 'c':
option_values.force_to_stdout = true;
break;
case 's':
flac__utils_verbosity_ = 1;
break;
case 'f':
option_values.force_file_overwrite = true;
break;
case 'o':
FLAC__ASSERT(0 != option_argument);
option_values.cmdline_forced_outfilename = option_argument;
break;
case 'F':
option_values.continue_through_decode_errors = true;
break;
case 'T':
FLAC__ASSERT(0 != option_argument);
if(!flac__vorbiscomment_add(option_values.vorbis_comment, option_argument, /*value_from_file=*/false, /*raw=*/!option_values.utf8_convert, &violation))
return usage_error("ERROR: (-T/--tag) %s\n", violation);
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
add_compression_setting_unsigned(CST_COMPRESSION_LEVEL, short_option-'0');
break;
case '9':
return usage_error("ERROR: compression level '9' is reserved\n");
case 'V':
option_values.verify = true;
break;
case 'w':
option_values.treat_warnings_as_errors = true;
break;
case 'S':
FLAC__ASSERT(0 != option_argument);
if(0 == strcmp(option_argument, "-")) {
option_values.num_requested_seek_points = 0;
option_values.requested_seek_points[0] = '\0';
}
else {
if(option_values.num_requested_seek_points < 0)
option_values.num_requested_seek_points = 0;
option_values.num_requested_seek_points++;
if(strlen(option_values.requested_seek_points)+strlen(option_argument)+2 >= sizeof(option_values.requested_seek_points)) {
return usage_error("ERROR: too many seekpoints requested\n");
}
else {
size_t len = strlen(option_values.requested_seek_points);
flac_snprintf(option_values.requested_seek_points+len, sizeof(option_values.requested_seek_points) - len, "%s;", option_argument);
}
}
break;
case 'P':
FLAC__ASSERT(0 != option_argument);
option_values.padding = atoi(option_argument);
if(option_values.padding < 0)
return usage_error("ERROR: argument to -%c must be >= 0; for no padding use -%c-\n", short_option, short_option);
break;
case 'b':
{
unsigned i ;
FLAC__ASSERT(0 != option_argument);
i = atoi(option_argument);
if((i < (int)FLAC__MIN_BLOCK_SIZE || i > (int)FLAC__MAX_BLOCK_SIZE))
return usage_error("ERROR: invalid blocksize (-%c) '%d', must be >= %u and <= %u\n", short_option, i, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
add_compression_setting_unsigned(CST_BLOCKSIZE, (unsigned)i);
}
break;
case 'e':
add_compression_setting_bool(CST_DO_EXHAUSTIVE_MODEL_SEARCH, true);
break;
case 'E':
add_compression_setting_bool(CST_DO_ESCAPE_CODING, true);
break;
case 'l':
{
unsigned i ;
FLAC__ASSERT(0 != option_argument);
i = atoi(option_argument);
if(i > FLAC__MAX_LPC_ORDER)
return usage_error("ERROR: invalid LPC order (-%c) '%d', must be >= %u and <= %u\n", short_option, i, 0, FLAC__MAX_LPC_ORDER);
add_compression_setting_unsigned(CST_MAX_LPC_ORDER, i);
}
break;
case 'A':
FLAC__ASSERT(0 != option_argument);
add_compression_setting_string(CST_APODIZATION, option_argument);
break;
case 'm':
add_compression_setting_bool(CST_DO_MID_SIDE, true);
add_compression_setting_bool(CST_LOOSE_MID_SIDE, false);
break;
case 'M':
add_compression_setting_bool(CST_DO_MID_SIDE, true);
add_compression_setting_bool(CST_LOOSE_MID_SIDE, true);
break;
case 'p':
add_compression_setting_bool(CST_DO_QLP_COEFF_PREC_SEARCH, true);
break;
case 'q':
{
unsigned i ;
FLAC__ASSERT(0 != option_argument);
i = atoi(option_argument);
if((i > 0 && (i < FLAC__MIN_QLP_COEFF_PRECISION || i > FLAC__MAX_QLP_COEFF_PRECISION)))
return usage_error("ERROR: invalid value '%d' for qlp coeff precision (-%c), must be 0 or between %u and %u, inclusive\n", i, short_option, FLAC__MIN_QLP_COEFF_PRECISION, FLAC__MAX_QLP_COEFF_PRECISION);
add_compression_setting_unsigned(CST_QLP_COEFF_PRECISION, i);
}
break;
case 'r':
{
unsigned i;
char * p;
FLAC__ASSERT(0 != option_argument);
p = strchr(option_argument, ',');
if(0 == p) {
add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, 0);
i = atoi(option_argument);
if(i > FLAC__MAX_RICE_PARTITION_ORDER)
return usage_error("ERROR: invalid value '%d' for residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, i);
}
else {
i = atoi(option_argument);
if(i > FLAC__MAX_RICE_PARTITION_ORDER)
return usage_error("ERROR: invalid value '%d' for min residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
add_compression_setting_unsigned(CST_MIN_RESIDUAL_PARTITION_ORDER, i);
i = atoi(++p);
if(i > FLAC__MAX_RICE_PARTITION_ORDER)
return usage_error("ERROR: invalid value '%d' for max residual partition order (-%c), must be between 0 and %u, inclusive\n", i, short_option, FLAC__MAX_RICE_PARTITION_ORDER);
add_compression_setting_unsigned(CST_MAX_RESIDUAL_PARTITION_ORDER, i);
}
}
break;
case 'R':
{
unsigned i;
i = atoi(option_argument);
add_compression_setting_unsigned(CST_RICE_PARAMETER_SEARCH_DIST, i);
}
break;
default:
FLAC__ASSERT(0);
}
}
return 0;
}
void free_options(void)
{
unsigned i;
if(0 != option_values.filenames) {
for(i = 0; i < option_values.num_files; i++) {
if(0 != option_values.filenames[i])
free(option_values.filenames[i]);
}
free(option_values.filenames);
}
if(0 != option_values.vorbis_comment)
FLAC__metadata_object_delete(option_values.vorbis_comment);
for(i = 0; i < option_values.num_pictures; i++)
FLAC__metadata_object_delete(option_values.pictures[i]);
}
void add_compression_setting_bool(compression_setting_type_t type, FLAC__bool value)
{
if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
die("too many compression settings");
option_values.compression_settings[option_values.num_compression_settings].type = type;
option_values.compression_settings[option_values.num_compression_settings].value.t_bool = value;
option_values.num_compression_settings++;
}
void add_compression_setting_string(compression_setting_type_t type, const char *value)
{
if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
die("too many compression settings");
option_values.compression_settings[option_values.num_compression_settings].type = type;
option_values.compression_settings[option_values.num_compression_settings].value.t_string = value;
option_values.num_compression_settings++;
}
void add_compression_setting_unsigned(compression_setting_type_t type, unsigned value)
{
if(option_values.num_compression_settings >= sizeof(option_values.compression_settings)/sizeof(option_values.compression_settings[0]))
die("too many compression settings");
option_values.compression_settings[option_values.num_compression_settings].type = type;
option_values.compression_settings[option_values.num_compression_settings].value.t_unsigned = value;
option_values.num_compression_settings++;
}
int usage_error(const char *message, ...)
{
if(flac__utils_verbosity_ >= 1) {
va_list args;
FLAC__ASSERT(0 != message);
va_start(args, message);
(void) vfprintf(stderr, message, args);
va_end(args);
printf("Type \"flac\" for a usage summary or \"flac --help\" for all options\n");
}
return 1;
}
void show_version(void)
{
printf("flac %s\n", FLAC__VERSION_STRING);
}
static void usage_header(void)
{
printf("===============================================================================\n");
printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
printf("Copyright (C) 2000-2009 Josh Coalson\n");
printf("Copyright (C) 2011-2014 Xiph.Org Foundation\n");
printf("\n");
printf("This program is free software; you can redistribute it and/or\n");
printf("modify it under the terms of the GNU General Public License\n");
printf("as published by the Free Software Foundation; either version 2\n");
printf("of the License, or (at your option) any later version.\n");
printf("\n");
printf("This program is distributed in the hope that it will be useful,\n");
printf("but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
printf("MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n");
printf("GNU General Public License for more details.\n");
printf("\n");
printf("You should have received a copy of the GNU General Public License along\n");
printf("with this program; if not, write to the Free Software Foundation, Inc.,\n");
printf("51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n");
printf("===============================================================================\n");
}
static void usage_summary(void)
{
printf("Usage:\n");
printf("\n");
printf(" Encoding: flac [<general-options>] [<encoding/format-options>] [INPUTFILE [...]]\n");
printf(" Decoding: flac -d [<general-options>] [<format-options>] [FLACFILE [...]]\n");
printf(" Testing: flac -t [<general-options>] [FLACFILE [...]]\n");
printf("Analyzing: flac -a [<general-options>] [<analysis-options>] [FLACFILE [...]]\n");
printf("\n");
printf("Be sure to read the list of known bugs at:\n");
printf("http://xiph.org/flac/documentation_bugs.html\n");
printf("\n");
}
void short_usage(void)
{
usage_header();
printf("\n");
printf("This is the short help; for all options use 'flac --help'; for even more\n");
printf("instructions use 'flac --explain'\n");
printf("\n");
printf("Be sure to read the list of known bugs at:\n");
printf("http://xiph.org/flac/documentation_bugs.html\n");
printf("\n");
printf("To encode:\n");
printf(" flac [-#] [INPUTFILE [...]]\n");
printf("\n");
printf(" -# is -0 (fastest compression) to -8 (highest compression); -5 is the default\n");
printf("\n");
printf("To decode:\n");
printf(" flac -d [INPUTFILE [...]]\n");
printf("\n");
printf("To test:\n");
printf(" flac -t [INPUTFILE [...]]\n");
}
void show_help(void)
{
usage_header();
usage_summary();
printf("general options:\n");
printf(" -v, --version Show the flac version number\n");
printf(" -h, --help Show this screen\n");
printf(" -H, --explain Show detailed explanation of usage and options\n");
printf(" -d, --decode Decode (the default behavior is to encode)\n");
printf(" -t, --test Same as -d except no decoded file is written\n");
printf(" -a, --analyze Same as -d except an analysis file is written\n");
printf(" -c, --stdout Write output to stdout\n");
printf(" -s, --silent Do not write runtime encode/decode statistics\n");
printf(" --totally-silent Do not print anything, including errors\n");
printf(" --no-utf8-convert Do not convert tags from local charset to UTF-8\n");
printf(" -w, --warnings-as-errors Treat all warnings as errors\n");
printf(" -f, --force Force overwriting of output files\n");
printf(" -o, --output-name=FILENAME Force the output file name\n");
printf(" --output-prefix=STRING Prepend STRING to output names\n");
printf(" --delete-input-file Deletes after a successful encode/decode\n");
printf(" --preserve-modtime Output files keep timestamp of input (default)\n");
printf(" --keep-foreign-metadata Save/restore WAVE or AIFF non-audio chunks\n");
printf(" --skip={#|mm:ss.ss} Skip the given initial samples for each input\n");
printf(" --until={#|[+|-]mm:ss.ss} Stop at the given sample for each input file\n");
#if FLAC__HAS_OGG
printf(" --ogg Use Ogg as transport layer\n");
printf(" --serial-number Serial number to use for the FLAC stream\n");
#endif
printf("analysis options:\n");
printf(" --residual-text Include residual signal in text output\n");
printf(" --residual-gnuplot Generate gnuplot files of residual distribution\n");
printf("decoding options:\n");
printf(" -F, --decode-through-errors Continue decoding through stream errors\n");
printf(" --cue=[#.#][-[#.#]] Set the beginning and ending cuepoints to decode\n");
printf("encoding options:\n");
printf(" -V, --verify Verify a correct encoding\n");
printf(" --lax Allow encoder to generate non-Subset files\n");
printf(" --ignore-chunk-sizes Ignore data chunk sizes in WAVE/AIFF files\n");
printf(" --sector-align (DEPRECATED) Align multiple files on sector boundaries\n");
printf(" --replay-gain Calculate ReplayGain & store in FLAC tags\n");
printf(" --cuesheet=FILENAME Import cuesheet and store in CUESHEET block\n");
printf(" --picture=SPECIFICATION Import picture and store in PICTURE block\n");
printf(" -T, --tag=FIELD=VALUE Add a FLAC tag; may appear multiple times\n");
printf(" --tag-from-file=FIELD=FILENAME Like --tag but gets value from file\n");
printf(" -S, --seekpoint={#|X|#x|#s} Add seek point(s)\n");
printf(" -P, --padding=# Write a PADDING block of length #\n");
printf(" -0, --compression-level-0, --fast Synonymous with -l 0 -b 1152 -r 3\n");
printf(" -1, --compression-level-1 Synonymous with -l 0 -b 1152 -M -r 3\n");
printf(" -2, --compression-level-2 Synonymous with -l 0 -b 1152 -m -r 3\n");
printf(" -3, --compression-level-3 Synonymous with -l 6 -b 4096 -r 4\n");
printf(" -4, --compression-level-4 Synonymous with -l 8 -b 4096 -M -r 4\n");
printf(" -5, --compression-level-5 Synonymous with -l 8 -b 4096 -m -r 5\n");
printf(" -6, --compression-level-6 Synonymous with -l 8 -b 4096 -m -r 6\n");
printf(" -A tukey(0.5) -A partial_tukey(2)\n");
printf(" -7, --compression-level-7 Synonymous with -l 12 -b 4096 -m -r 6\n");
printf(" -A tukey(0.5) -A partial_tukey(2)\n");
printf(" -8, --compression-level-8, --best Synonymous with -l 12 -b 4096 -m -r 6\n");
printf(" -A tukey(0.5) -A partial_tukey(2) -A punchout_tukey(3)\n");
printf(" -b, --blocksize=# Specify blocksize in samples\n");
printf(" -m, --mid-side Try mid-side coding for each frame\n");
printf(" -M, --adaptive-mid-side Adaptive mid-side coding for all frames\n");
printf(" -e, --exhaustive-model-search Do exhaustive model search (expensive!)\n");
printf(" -A, --apodization=\"function\" Window audio data with given the function\n");
printf(" -l, --max-lpc-order=# Max LPC order; 0 => only fixed predictors\n");
printf(" -p, --qlp-coeff-precision-search Exhaustively search LP coeff quantization\n");
printf(" -q, --qlp-coeff-precision=# Specify precision in bits\n");
printf(" -r, --rice-partition-order=[#,]# Set [min,]max residual partition order\n");
printf("format options:\n");
printf(" --force-raw-format Treat input or output as raw samples\n");
printf(" --force-aiff-format Force decoding to AIFF format\n");
printf(" --force-rf64-format Force decoding to RF64 format\n");
printf(" --force-wave64-format Force decoding to Wave64 format\n");
printf("raw format options:\n");
printf(" --endian={big|little} Set byte order for samples\n");
printf(" --channels=# Number of channels\n");
printf(" --bps=# Number of bits per sample\n");
printf(" --sample-rate=# Sample rate in Hz\n");
printf(" --sign={signed|unsigned} Sign of samples\n");
printf(" --input-size=# Size of the raw input in bytes\n");
printf("negative options:\n");
printf(" --no-adaptive-mid-side\n");
printf(" --no-cued-seekpoints\n");
printf(" --no-decode-through-errors\n");
printf(" --no-delete-input-file\n");
printf(" --no-error-on-compression-fail\n");
printf(" --no-preserve-modtime\n");
printf(" --no-keep-foreign-metadata\n");
printf(" --no-exhaustive-model-search\n");
printf(" --no-lax\n");
printf(" --no-mid-side\n");
#if FLAC__HAS_OGG
printf(" --no-ogg\n");
#endif
printf(" --no-padding\n");
printf(" --no-qlp-coeff-prec-search\n");
printf(" --no-replay-gain\n");
printf(" --no-residual-gnuplot\n");
printf(" --no-residual-text\n");
printf(" --no-ignore-chunk-sizes\n");
printf(" --no-sector-align\n");
printf(" --no-seektable\n");
printf(" --no-silent\n");
printf(" --no-force\n");
printf(" --no-verify\n");
printf(" --no-warnings-as-errors\n");
}
void show_explain(void)
{
usage_header();
usage_summary();
printf("For encoding:\n");
printf(" The input file(s) may be a PCM WAVE or RF64 file, AIFF (or uncompressed\n");
printf(" AIFF-C) file, or raw samples.\n");
printf(" The output file(s) will be in native FLAC or Ogg FLAC format\n");
printf("For decoding, the reverse is true.\n");
printf("\n");
printf("A single INPUTFILE may be - for stdin. No INPUTFILE implies stdin. Use of\n");
printf("stdin implies -c (write to stdout). Normally you should use:\n");
printf(" flac [options] -o outfilename or flac -d [options] -o outfilename\n");
printf("instead of:\n");
printf(" flac [options] > outfilename or flac -d [options] > outfilename\n");
printf("since the former allows flac to seek backwards to write the STREAMINFO or\n");
printf("WAVE/AIFF header contents when necessary.\n");
printf("\n");
printf("flac checks for the presence of a AIFF/WAVE header to decide whether or not to\n");
printf("treat an input file as AIFF/WAVE format or raw samples. If any input file is\n");
printf("raw you must specify the format options {-fb|fl} -fc -fp and -fs, which will\n");
printf("apply to all raw files. You can force AIFF/WAVE files to be treated as raw\n");
printf("files using -fr.\n");
printf("\n");
printf("general options:\n");
printf(" -v, --version Show the flac version number\n");
printf(" -h, --help Show basic usage a list of all options\n");
printf(" -H, --explain Show this screen\n");
printf(" -d, --decode Decode (the default behavior is to encode)\n");
printf(" -t, --test Same as -d except no decoded file is written\n");
printf(" -a, --analyze Same as -d except an analysis file is written\n");
printf(" -c, --stdout Write output to stdout\n");
printf(" -s, --silent Do not write runtime encode/decode statistics\n");
printf(" --totally-silent Do not print anything of any kind, including\n");
printf(" warnings or errors. The exit code will be the\n");
printf(" only way to determine successful completion.\n");
printf(" --no-utf8-convert Do not convert tags from local charset to UTF-8.\n");
printf(" This is useful for scripts, and setting tags in\n");
printf(" situations where the locale is wrong. This\n");
printf(" option must appear before any tag options!\n");
printf(" -w, --warnings-as-errors Treat all warnings as errors\n");
printf(" -f, --force Force overwriting of output files\n");
printf(" -o, --output-name=FILENAME Force the output file name; usually flac just\n");
printf(" changes the extension. May only be used when\n");
printf(" encoding a single file. May not be used in\n");
printf(" conjunction with --output-prefix.\n");
printf(" --output-prefix=STRING Prefix each output file name with the given\n");
printf(" STRING. This can be useful for encoding or\n");
printf(" decoding files to a different directory. Make\n");
printf(" sure if your STRING is a path name that it ends\n");
printf(" with a '/' slash.\n");
printf(" --delete-input-file Automatically delete the input file after a\n");
printf(" successful encode or decode. If there was an\n");
printf(" error (including a verify error) the input file\n");
printf(" is left intact.\n");
printf(" --preserve-modtime Output files have their timestamps/permissions\n");
printf(" set to match those of their inputs (this is\n");
printf(" default). Use --no-preserve-modtime to make\n");
printf(" output files have the current time and default\n");
printf(" permissions.\n");
printf(" --keep-foreign-metadata If encoding, save WAVE or AIFF non-audio chunks\n");
printf(" in FLAC metadata. If decoding, restore any saved\n");
printf(" non-audio chunks from FLAC metadata when writing\n");
printf(" the decoded file. Foreign metadata cannot be\n");
printf(" transcoded, e.g. WAVE chunks saved in a FLAC file\n");
printf(" cannot be restored when decoding to AIFF. Input\n");
printf(" and output must be regular files, not stdin/out.\n");
printf(" --skip={#|mm:ss.ss} Skip the first # samples of each input file; can\n");
printf(" be used both for encoding and decoding. The\n");
printf(" alternative form mm:ss.ss can be used to specify\n");
printf(" minutes, seconds, and fractions of a second.\n");
printf(" --until={#|[+|-]mm:ss.ss} Stop at the given sample number for each input\n");
printf(" file. The given sample number is not included\n");
printf(" in the decoded output. The alternative form\n");
printf(" mm:ss.ss can be used to specify minutes,\n");
printf(" seconds, and fractions of a second. If a `+'\n");
printf(" sign is at the beginning, the --until point is\n");
printf(" relative to the --skip point. If a `-' sign is\n");
printf(" at the beginning, the --until point is relative\n");
printf(" to end of the audio.\n");
#if FLAC__HAS_OGG
printf(" --ogg When encoding, generate Ogg FLAC output instead\n");
printf(" of native FLAC. Ogg FLAC streams are FLAC\n");
printf(" streams wrapped in an Ogg transport layer. The\n");
printf(" resulting file should have an '.oga' extension\n");
printf(" and will still be decodable by flac. When\n");
printf(" decoding, force the input to be treated as\n");
printf(" Ogg FLAC. This is useful when piping input\n");
printf(" from stdin or when the filename does not end in\n");
printf(" '.oga' or '.ogg'.\n");
printf(" --serial-number Serial number to use for the FLAC stream. When\n");
printf(" encoding and no serial number is given, flac\n");
printf(" uses a random one. If encoding to multiple files\n");
printf(" the serial number is incremented for each file.\n");
printf(" When decoding and no number is given, flac uses\n");
printf(" the serial number of the first page.\n");
#endif
printf("analysis options:\n");
printf(" --residual-text Include residual signal in text output. This\n");
printf(" will make the file very big, much larger than\n");
printf(" even the decoded file.\n");
printf(" --residual-gnuplot Generate gnuplot files of residual distribution\n");
printf(" of each subframe\n");
printf("decoding options:\n");
printf(" -F, --decode-through-errors By default flac stops decoding with an error\n");
printf(" and removes the partially decoded file if it\n");
printf(" encounters a bitstream error. With -F, errors\n");
printf(" are still printed but flac will continue\n");
printf(" decoding to completion. Note that errors may\n");
printf(" cause the decoded audio to be missing some\n");
printf(" samples or have silent sections.\n");
printf(" --cue=[#.#][-[#.#]] Set the beginning and ending cuepoints to\n");
printf(" decode. The optional first #.# is the track and\n");
printf(" index point at which decoding will start; the\n");
printf(" default is the beginning of the stream. The\n");
printf(" optional second #.# is the track and index point\n");
printf(" at which decoding will end; the default is the\n");
printf(" end of the stream. If the cuepoint does not\n");
printf(" exist, the closest one before it (for the start\n");
printf(" point) or after it (for the end point) will be\n");
printf(" used. The cuepoints are merely translated into\n");
printf(" sample numbers then used as --skip and --until.\n");
printf(" A CD track can always be cued by, for example,\n");
printf(" --cue=9.1-10.1 for track 9, even if the CD has\n");
printf(" no 10th track.\n");
printf("encoding options:\n");
printf(" -V, --verify Verify a correct encoding by decoding the\n");
printf(" output in parallel and comparing to the\n");
printf(" original\n");
printf(" --lax Allow encoder to generate non-Subset files\n");
printf(" --ignore-chunk-sizes Ignore data chunk sizes in WAVE/AIFF files;\n");
printf(" useful when piping data from programs which\n");
printf(" generate bogus data chunk sizes.\n");
printf(" --sector-align Align encoding of multiple CD format WAVE files\n");
printf(" on sector boundaries. This option is DEPRECATED\n");
printf(" and may not exist in future versions of flac.\n");
printf(" shntool offers similar functionality.\n");
printf(" --replay-gain Calculate ReplayGain values and store them as\n");
printf(" FLAC tags. Title gains/peaks will be computed\n");
printf(" for each file, and an album gain/peak will be\n");
printf(" computed for all files. All input files must\n");
printf(" have the same resolution, sample rate, and\n");
printf(" number of channels. The sample rate must be\n");
printf(" one of 8, 11.025, 12, 16, 22.05, 24, 32, 44.1,\n");
printf(" or 48 kHz. NOTE: this option may also leave a\n");
printf(" few extra bytes in the PADDING block.\n");
printf(" --cuesheet=FILENAME Import the given cuesheet file and store it in\n");
printf(" a CUESHEET metadata block. This option may only\n");
printf(" be used when encoding a single file. A\n");
printf(" seekpoint will be added for each index point in\n");
printf(" the cuesheet to the SEEKTABLE unless\n");
printf(" --no-cued-seekpoints is specified.\n");
printf(" --picture=SPECIFICATION Import a picture and store it in a PICTURE block.\n");
printf(" More than one --picture command can be specified.\n");
printf(" The SPECIFICATION can either be a simple filename\n");
printf(" for the picture file, or a complete specification\n");
printf(" whose parts are separated by | characters. Some\n");
printf(" parts may be left empty to invoke default values.\n");
printf(" Using a filename is shorthand for \"||||FILE\".\n");
printf(" The SPECIFICATION format is:\n");
printf(" [TYPE]|[MIME-TYPE]|[DESCRIPTION]|[WIDTHxHEIGHTxDEPTH[/COLORS]]|FILE\n");
printf(" TYPE is optional; it is a number from one of:\n");
printf(" 0: Other\n");
printf(" 1: 32x32 pixels 'file icon' (PNG only)\n");
printf(" 2: Other file icon\n");
printf(" 3: Cover (front)\n");
printf(" 4: Cover (back)\n");
printf(" 5: Leaflet page\n");
printf(" 6: Media (e.g. label side of CD)\n");
printf(" 7: Lead artist/lead performer/soloist\n");
printf(" 8: Artist/performer\n");
printf(" 9: Conductor\n");
printf(" 10: Band/Orchestra\n");
printf(" 11: Composer\n");
printf(" 12: Lyricist/text writer\n");
printf(" 13: Recording Location\n");
printf(" 14: During recording\n");
printf(" 15: During performance\n");
printf(" 16: Movie/video screen capture\n");
printf(" 17: A bright coloured fish\n");
printf(" 18: Illustration\n");
printf(" 19: Band/artist logotype\n");
printf(" 20: Publisher/Studio logotype\n");
printf(" The default is 3 (front cover). There may only be one picture each\n");
printf(" of type 1 and 2 in a file.\n");
printf(" MIME-TYPE is optional; if left blank, it will be detected from the\n");
printf(" file. For best compatibility with players, use pictures with MIME\n");
printf(" type image/jpeg or image/png. The MIME type can also be --> to\n");
printf(" mean that FILE is actually a URL to an image, though this use is\n");
printf(" discouraged.\n");
printf(" DESCRIPTION is optional; the default is an empty string\n");
printf(" The next part specfies the resolution and color information. If\n");
printf(" the MIME-TYPE is image/jpeg, image/png, or image/gif, you can\n");
printf(" usually leave this empty and they can be detected from the file.\n");
printf(" Otherwise, you must specify the width in pixels, height in pixels,\n");
printf(" and color depth in bits-per-pixel. If the image has indexed colors\n");
printf(" you should also specify the number of colors used.\n");
printf(" FILE is the path to the picture file to be imported, or the URL if\n");
printf(" MIME type is -->\n");
printf(" -T, --tag=FIELD=VALUE Add a FLAC tag. Make sure to quote the\n");
printf(" comment if necessary. This option may appear\n");
printf(" more than once to add several comments. NOTE:\n");
printf(" all tags will be added to all encoded files.\n");
printf(" --tag-from-file=FIELD=FILENAME Like --tag, except FILENAME is a file\n");
printf(" whose contents will be read verbatim to set the\n");
printf(" tag value. The contents will be converted to\n");
printf(" UTF-8 from the local charset. This can be used\n");
printf(" to store a cuesheet in a tag (e.g.\n");
printf(" --tag-from-file=\"CUESHEET=image.cue\"). Do not\n");
printf(" try to store binary data in tag fields! Use\n");
printf(" APPLICATION blocks for that.\n");
printf(" -S, --seekpoint={#|X|#x|#s} Include a point or points in a SEEKTABLE\n");
printf(" # : a specific sample number for a seek point\n");
printf(" X : a placeholder point (always goes at the end of the SEEKTABLE)\n");
printf(" #x : # evenly spaced seekpoints, the first being at sample 0\n");
printf(" #s : a seekpoint every # seconds; # does not have to be a whole number\n");
printf(" You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
printf(" ified union of all such values.\n");
printf(" With no -S options, flac defaults to '-S 10s'. Use -S- for no SEEKTABLE.\n");
printf(" Note: -S #x and -S #s will not work if the encoder can't determine the\n");
printf(" input size before starting.\n");
printf(" Note: if you use -S # and # is >= samples in the input, there will be\n");
printf(" either no seek point entered (if the input size is determinable\n");
printf(" before encoding starts) or a placeholder point (if input size is not\n");
printf(" determinable)\n");
printf(" -P, --padding=# Tell the encoder to write a PADDING metadata\n");
printf(" block of the given length (in bytes) after the\n");
printf(" STREAMINFO block. This is useful if you plan\n");
printf(" to tag the file later with an APPLICATION\n");
printf(" block; instead of having to rewrite the entire\n");
printf(" file later just to insert your block, you can\n");
printf(" write directly over the PADDING block. Note\n");
printf(" that the total length of the PADDING block will\n");
printf(" be 4 bytes longer than the length given because\n");
printf(" of the 4 metadata block header bytes. You can\n");
printf(" force no PADDING block at all to be written with\n");
printf(" --no-padding. The encoder writes a PADDING\n");
printf(" block of 8192 bytes by default, or 65536 bytes\n");
printf(" if the input audio is more than 20 minutes long.\n");
printf(" -b, --blocksize=# Specify the blocksize in samples; the default is\n");
printf(" 1152 for -l 0, else 4096; must be one of 192,\n");
printf(" 576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
printf(" 4096 (and 8192 or 16384 if the sample rate is\n");
printf(" >48kHz) for Subset streams.\n");
printf(" -0, --compression-level-0, --fast Synonymous with -l 0 -b 1152 -r 3\n");
printf(" -1, --compression-level-1 Synonymous with -l 0 -b 1152 -M -r 3\n");
printf(" -2, --compression-level-2 Synonymous with -l 0 -b 1152 -m -r 3\n");
printf(" -3, --compression-level-3 Synonymous with -l 6 -b 4096 -r 4\n");
printf(" -4, --compression-level-4 Synonymous with -l 8 -b 4096 -M -r 4\n");
printf(" -5, --compression-level-5 Synonymous with -l 8 -b 4096 -m -r 5\n");
printf(" -5 is the default setting\n");
printf(" -6, --compression-level-6 Synonymous with -l 8 -b 4096 -m -r 6\n");
printf(" -A tukey(0.5) -A partial_tukey(2)\n");
printf(" -7, --compression-level-7 Synonymous with -l 12 -b 4096 -m -r 6\n");
printf(" -A tukey(0.5) -A partial_tukey(2)\n");
printf(" -8, --compression-level-8, --best Synonymous with -l 12 -b 4096 -m -r 6\n");
printf(" -A tukey(0.5) -A partial_tukey(2) -A punchout_tukey(3)\n");
printf(" -m, --mid-side Try mid-side coding for each frame\n");
printf(" (stereo only)\n");
printf(" -M, --adaptive-mid-side Adaptive mid-side coding for all frames\n");
printf(" (stereo only)\n");
printf(" -e, --exhaustive-model-search Do exhaustive model search (expensive!)\n");
printf(" -A, --apodization=\"function\" Window audio data with given the function.\n");
printf(" The functions are: bartlett, bartlett_hann,\n");
printf(" blackman, blackman_harris_4term_92db,\n");
printf(" connes, flattop, gauss(STDDEV), hamming,\n");
printf(" hann, kaiser_bessel, nuttall, rectangle,\n");
printf(" triangle, tukey(P), welch, partial_tukey(n),\n");
printf(" punchout_tukey(n). More than one may be\n");
printf(" specified but encoding time is a multiple of\n");
printf(" the number of functions since they are each\n");
printf(" tried in turn. The encoder chooses suitable\n");
printf(" defaults in the absence of any -A options.\n");
printf(" -l, --max-lpc-order=# Max LPC order; 0 => only fixed predictors.\n");
printf(" Must be <= 12 for Subset streams if sample\n");
printf(" rate is <=48kHz.\n");
printf(" -p, --qlp-coeff-precision-search Do exhaustive search of LP coefficient\n");
printf(" quantization (expensive!); overrides -q;\n");
printf(" does nothing if using -l 0\n");
printf(" -q, --qlp-coeff-precision=# Specify precision in bits of quantized\n");
printf(" linear-predictor coefficients; 0 => let\n");
printf(" encoder decide (the minimun is %u, the\n", FLAC__MIN_QLP_COEFF_PRECISION);
printf(" default is -q 0)\n");
printf(" -r, --rice-partition-order=[#,]# Set [min,]max residual partition order\n");
printf(" (# is 0..16; min defaults to 0; the\n");
printf(" default is -r 0; above 4 doesn't usually\n");
printf(" help much)\n");
printf("format options:\n");
printf(" --force-raw-format Force input (when encoding) or output (when\n");
printf(" decoding) to be treated as raw samples\n");
printf(" --force-aiff-format Force the decoder to output AIFF format. This\n");
printf(" option is not needed if the output filename (as\n");
printf(" set by -o) ends with .aif or .aiff; this option\n");
printf(" has no effect when encoding since input AIFF is\n");
printf(" auto-detected.\n");
printf(" --force-rf64-format Force the decoder to output RF64 format. This\n");
printf(" option is not needed if the output filename (as\n");
printf(" set by -o) ends with .rf64; this option\n");
printf(" has no effect when encoding since input RF64 is\n");
printf(" auto-detected.\n");
printf(" --force-wave64-format Force the decoder to output Wave64 format. This\n");
printf(" option is not needed if the output filename (as\n");
printf(" set by -o) ends with .w64; this option\n");
printf(" has no effect when encoding since input Wave64 is\n");
printf(" auto-detected.\n");
printf("raw format options:\n");
printf(" --endian={big|little} Set byte order for samples\n");
printf(" --channels=# Number of channels\n");
printf(" --bps=# Number of bits per sample\n");
printf(" --sample-rate=# Sample rate in Hz\n");
printf(" --sign={signed|unsigned} Sign of samples (the default is signed)\n");
printf(" --input-size=# Size of the raw input in bytes. If you are\n");
printf(" encoding raw samples from stdin, you must set\n");
printf(" this option in order to be able to use --skip,\n");
printf(" --until, --cuesheet, or other options that need\n");
printf(" to know the size of the input beforehand. If\n");
printf(" the size given is greater than what is found in\n");
printf(" the input stream, the encoder will complain\n");
printf(" about an unexpected end-of-file. If the size\n");
printf(" given is less, samples will be truncated.\n");
printf("negative options:\n");
printf(" --no-adaptive-mid-side\n");
printf(" --no-cued-seekpoints\n");
printf(" --no-decode-through-errors\n");
printf(" --no-delete-input-file\n");
printf(" --no-preserve-modtime\n");
printf(" --no-keep-foreign-metadata\n");
printf(" --no-exhaustive-model-search\n");
printf(" --no-lax\n");
printf(" --no-mid-side\n");
#if FLAC__HAS_OGG
printf(" --no-ogg\n");
#endif
printf(" --no-padding\n");
printf(" --no-qlp-coeff-prec-search\n");
printf(" --no-residual-gnuplot\n");
printf(" --no-residual-text\n");
printf(" --no-ignore-chunk-sizes\n");
printf(" --no-sector-align\n");
printf(" --no-seektable\n");
printf(" --no-silent\n");
printf(" --no-force\n");
printf(" --no-verify\n");
printf(" --no-warnings-as-errors\n");
}
void format_mistake(const char *infilename, FileFormat wrong, FileFormat right)
{
/* WATCHOUT: indexed by FileFormat */
static const char * const ff[] = { " raw", " WAVE", "n RF64", "n AIFF", "n AIFF-C", " FLAC", "n Ogg FLAC" };
flac__utils_printf(stderr, 1, "WARNING: %s is not a%s file; treating as a%s file\n", infilename, ff[wrong], ff[right]);
}
int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
{
FILE *encode_infile;
FLAC__byte lookahead[12];
unsigned lookahead_length = 0;
FileFormat input_format = FORMAT_RAW;
int retval;
FLAC__off_t infilesize;
encode_options_t encode_options;
const char *outfilename = get_encoded_outfilename(infilename); /* the final name of the encoded file */
/* internal_outfilename is the file we will actually write to; it will be a temporary name if infilename==outfilename */
char *internal_outfilename = 0; /* NULL implies 'use outfilename' */
if(0 == outfilename) {
flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
return 1;
}
if(0 == strcmp(infilename, "-")) {
infilesize = (FLAC__off_t)(-1);
encode_infile = grabbag__file_get_binary_stdin();
}
else {
infilesize = grabbag__file_get_filesize(infilename);
if(0 == (encode_infile = flac_fopen(infilename, "rb"))) {
flac__utils_printf(stderr, 1, "ERROR: can't open input file %s: %s\n", infilename, strerror(errno));
return 1;
}
}
if(!option_values.force_raw_format) {
/* first set format based on name */
if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".wav"))
input_format = FORMAT_WAVE;
else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".rf64"))
input_format = FORMAT_RF64;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".w64"))
input_format = FORMAT_WAVE64;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".aif"))
input_format = FORMAT_AIFF;
else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".aiff"))
input_format = FORMAT_AIFF;
else if(strlen(infilename) >= 5 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-5), ".flac"))
input_format = FORMAT_FLAC;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
input_format = FORMAT_OGGFLAC;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
input_format = FORMAT_OGGFLAC;
/* attempt to guess the file type based on the first 12 bytes */
if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
/* all supported non-raw formats have at least 12 bytes of header to read */
if(input_format != FORMAT_RAW) {
format_mistake(infilename, input_format, FORMAT_RAW);
if(option_values.treat_warnings_as_errors) {
conditional_fclose(encode_infile);
return 1;
}
}
/* force to raw */
input_format = FORMAT_RAW;
}
else {
if(!memcmp(lookahead, "ID3", 3)) {
flac__utils_printf(stderr, 1, "ERROR: input file %s has an ID3v2 tag\n", infilename);
conditional_fclose(encode_infile);
return 1;
}
else if(!memcmp(lookahead, "RIFF", 4) && !memcmp(lookahead+8, "WAVE", 4))
input_format = FORMAT_WAVE;
else if(!memcmp(lookahead, "RF64", 4) && !memcmp(lookahead+8, "WAVE", 4))
input_format = FORMAT_RF64;
else if(!memcmp(lookahead, "riff\x2E\x91\xCF\x11\xA5\xD6\x28\xDB", 12)) /* just check 1st 12 bytes of GUID */
input_format = FORMAT_WAVE64;
else if(!memcmp(lookahead, "FORM", 4) && !memcmp(lookahead+8, "AIFF", 4))
input_format = FORMAT_AIFF;
else if(!memcmp(lookahead, "FORM", 4) && !memcmp(lookahead+8, "AIFC", 4))
input_format = FORMAT_AIFF_C;
else if(!memcmp(lookahead, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING)))
input_format = FORMAT_FLAC;
/*@@@ this could be made more accurate by looking at the first packet to make sure it's Ogg FLAC and not, say, Ogg Vorbis. we do catch such problems later though. */
else if(!memcmp(lookahead, "OggS", 4))
input_format = FORMAT_OGGFLAC;
else {
/* didn't find header of any supported format */
if(input_format != FORMAT_RAW) {
format_mistake(infilename, input_format, FORMAT_RAW);
if(option_values.treat_warnings_as_errors) {
conditional_fclose(encode_infile);
return 1;
}
}
/* force to raw */
input_format = FORMAT_RAW;
}
}
}
if(option_values.keep_foreign_metadata) {
if(encode_infile == stdin || option_values.force_to_stdout) {
conditional_fclose(encode_infile);
return usage_error("ERROR: --keep-foreign-metadata cannot be used when encoding from stdin or to stdout\n");
}
if(input_format != FORMAT_WAVE && input_format != FORMAT_WAVE64 && input_format != FORMAT_RF64 && input_format != FORMAT_AIFF && input_format != FORMAT_AIFF_C) {
conditional_fclose(encode_infile);
return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE, Wave64, RF64, or AIFF input\n");
}
}
/*
* Error if output file already exists (and -f not used).
* Use grabbag__file_get_filesize() as a cheap way to check.
*/
if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (FLAC__off_t)(-1)) {
if(input_format == FORMAT_FLAC) {
/* need more detailed error message when re-flac'ing to avoid confusing the user */
flac__utils_printf(stderr, 1,
"ERROR: output file %s already exists.\n\n"
"By default flac encodes files to FLAC format; if you meant to decode this file\n"
"from FLAC to something else, use -d. If you meant to re-encode this file from\n"
"FLAC to FLAC again, use -f to force writing to the same file, or -o to specify\n"
"a different output filename.\n",
outfilename
);
}
else if(input_format == FORMAT_OGGFLAC) {
/* need more detailed error message when re-flac'ing to avoid confusing the user */
flac__utils_printf(stderr, 1,
"ERROR: output file %s already exists.\n\n"
"By default 'flac -ogg' encodes files to Ogg FLAC format; if you meant to decode\n"
"this file from Ogg FLAC to something else, use -d. If you meant to re-encode\n"
"this file from Ogg FLAC to Ogg FLAC again, use -f to force writing to the same\n"
"file, or -o to specify a different output filename.\n",
outfilename
);
}
else
flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
conditional_fclose(encode_infile);
return 1;
}
if(option_values.format_input_size >= 0) {
if (input_format != FORMAT_RAW || infilesize >= 0) {
flac__utils_printf(stderr, 1, "ERROR: can only use --input-size when encoding raw samples from stdin\n");
conditional_fclose(encode_infile);
return 1;
}
else {
infilesize = option_values.format_input_size;
}
}
if(option_values.sector_align && (input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC)) {
flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input file is FLAC or Ogg FLAC\n");
conditional_fclose(encode_infile);
return 1;
}
if(option_values.sector_align && input_format == FORMAT_RAW && infilesize < 0) {
flac__utils_printf(stderr, 1, "ERROR: can't use --sector-align when the input size is unknown\n");
conditional_fclose(encode_infile);
return 1;
}
if(input_format == FORMAT_RAW) {
if(option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0 || option_values.format_channels < 0 || option_values.format_bps < 0 || option_values.format_sample_rate < 0) {
conditional_fclose(encode_infile);
return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
}
}
else {
if(option_values.format_is_big_endian >= 0 || option_values.format_is_unsigned_samples >= 0 || option_values.format_channels >= 0 || option_values.format_bps >= 0 || option_values.format_sample_rate >= 0) {
conditional_fclose(encode_infile);
return usage_error("ERROR: raw format options (--endian, --sign, --channels, --bps, and --sample-rate) are not allowed for non-raw input\n");
}
}
if(option_values.force_to_stdout) {
if(option_values.replay_gain) {
conditional_fclose(encode_infile);
return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
}
}
if(option_values.replay_gain && option_values.use_ogg) {
conditional_fclose(encode_infile);
return usage_error("ERROR: --replay-gain cannot be used when encoding to Ogg FLAC yet\n");
}
if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &encode_options.skip_specification) || encode_options.skip_specification.is_relative) {
conditional_fclose(encode_infile);
return usage_error("ERROR: invalid value for --skip\n");
}
if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &encode_options.until_specification)) { /*@@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code */
conditional_fclose(encode_infile);
return usage_error("ERROR: invalid value for --until\n");
}
/* if there is no "--until" we want to default to "--until=-0" */
if(0 == option_values.until_specification)
encode_options.until_specification.is_relative = true;
encode_options.verify = option_values.verify;
encode_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
#if FLAC__HAS_OGG
encode_options.use_ogg = option_values.use_ogg;
/* set a random serial number if one has not yet been specified */
if(!option_values.has_serial_number) {
option_values.serial_number = rand();
option_values.has_serial_number = true;
}
encode_options.serial_number = option_values.serial_number++;
#endif
encode_options.lax = option_values.lax;
encode_options.padding = option_values.padding;
encode_options.num_compression_settings = option_values.num_compression_settings;
FLAC__ASSERT(sizeof(encode_options.compression_settings) >= sizeof(option_values.compression_settings));
memcpy(encode_options.compression_settings, option_values.compression_settings, sizeof(option_values.compression_settings));
encode_options.requested_seek_points = option_values.requested_seek_points;
encode_options.num_requested_seek_points = option_values.num_requested_seek_points;
encode_options.cuesheet_filename = option_values.cuesheet_filename;
encode_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
encode_options.cued_seekpoints = option_values.cued_seekpoints;
encode_options.channel_map_none = option_values.channel_map_none;
encode_options.is_first_file = is_first_file;
encode_options.is_last_file = is_last_file;
encode_options.align_reservoir = align_reservoir;
encode_options.align_reservoir_samples = &align_reservoir_samples;
encode_options.replay_gain = option_values.replay_gain;
encode_options.ignore_chunk_sizes = option_values.ignore_chunk_sizes;
encode_options.sector_align = option_values.sector_align;
encode_options.vorbis_comment = option_values.vorbis_comment;
FLAC__ASSERT(sizeof(encode_options.pictures) >= sizeof(option_values.pictures));
memcpy(encode_options.pictures, option_values.pictures, sizeof(option_values.pictures));
encode_options.num_pictures = option_values.num_pictures;
encode_options.format = input_format;
encode_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
encode_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
encode_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
encode_options.debug.do_md5 = option_values.debug.do_md5;
encode_options.error_on_compression_fail = option_values.error_on_compression_fail;
/* if infilename and outfilename point to the same file, we need to write to a temporary file */
if(encode_infile != stdin && grabbag__file_are_same(infilename, outfilename)) {
static const char *tmp_suffix = ".tmp,fl-ac+en'c";
size_t dest_len = strlen(outfilename) + strlen(tmp_suffix) + 1;
/*@@@@ still a remote possibility that a file with this filename exists */
if(0 == (internal_outfilename = safe_malloc_(dest_len))) {
flac__utils_printf(stderr, 1, "ERROR allocating memory for tempfile name\n");
conditional_fclose(encode_infile);
return 1;
}
safe_strncpy(internal_outfilename, outfilename, dest_len);
safe_strncat(internal_outfilename, tmp_suffix, dest_len);
}
if(input_format == FORMAT_RAW) {
encode_options.format_options.raw.is_big_endian = option_values.format_is_big_endian;
encode_options.format_options.raw.is_unsigned_samples = option_values.format_is_unsigned_samples;
encode_options.format_options.raw.channels = option_values.format_channels;
encode_options.format_options.raw.bps = option_values.format_bps;
encode_options.format_options.raw.sample_rate = option_values.format_sample_rate;
retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
}
else if(input_format == FORMAT_FLAC || input_format == FORMAT_OGGFLAC) {
retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
}
else if(input_format == FORMAT_WAVE || input_format == FORMAT_WAVE64 || input_format == FORMAT_RF64 || input_format == FORMAT_AIFF || input_format == FORMAT_AIFF_C) {
encode_options.format_options.iff.foreign_metadata = 0;
/* initialize foreign metadata if requested */
if(option_values.keep_foreign_metadata) {
encode_options.format_options.iff.foreign_metadata =
flac__foreign_metadata_new(
input_format==FORMAT_WAVE || input_format==FORMAT_RF64?
FOREIGN_BLOCK_TYPE__RIFF :
input_format==FORMAT_WAVE64?
FOREIGN_BLOCK_TYPE__WAVE64 :
FOREIGN_BLOCK_TYPE__AIFF
);
if(0 == encode_options.format_options.iff.foreign_metadata) {
flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
conditional_fclose(encode_infile);
if(internal_outfilename != 0)
free(internal_outfilename);
return 1;
}
}
retval = flac__encode_file(encode_infile, infilesize, infilename, internal_outfilename? internal_outfilename : outfilename, lookahead, lookahead_length, encode_options);
if(encode_options.format_options.iff.foreign_metadata)
flac__foreign_metadata_delete(encode_options.format_options.iff.foreign_metadata);
}
else {
FLAC__ASSERT(0);
retval = 1; /* double protection */
}
if(retval == 0) {
if(strcmp(outfilename, "-")) {
if(option_values.replay_gain) {
float title_gain, title_peak;
const char *error;
grabbag__replaygain_get_title(&title_gain, &title_peak);
if(
0 != (error = grabbag__replaygain_store_to_file_reference(internal_outfilename? internal_outfilename : outfilename, option_values.preserve_modtime)) ||
0 != (error = grabbag__replaygain_store_to_file_title(internal_outfilename? internal_outfilename : outfilename, title_gain, title_peak, option_values.preserve_modtime))
) {
flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain reference/title tags (%s)\n", outfilename, error);
retval = 1;
}
}
if(option_values.preserve_modtime && strcmp(infilename, "-"))
grabbag__file_copy_metadata(infilename, internal_outfilename? internal_outfilename : outfilename);
}
}
/* rename temporary file if necessary */
if(retval == 0 && internal_outfilename != 0) {
if(flac_rename(internal_outfilename, outfilename) < 0) {
#if defined _MSC_VER || defined __MINGW32__ || defined __EMX__
/* on some flavors of windows, flac_rename() will fail if the destination already exists, so we unlink and try again */
if(flac_unlink(outfilename) < 0) {
flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
retval = 1;
}
else if(flac_rename(internal_outfilename, outfilename) < 0) {
flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, you must do it\n", internal_outfilename, outfilename);
retval = 1;
}
#else
flac__utils_printf(stderr, 1, "ERROR: moving new FLAC file %s back on top of original FLAC file %s, keeping both\n", internal_outfilename, outfilename);
retval = 1;
#endif
}
}
/* handle --delete-input-file, but don't want to delete if piping from stdin, or if input filename and output filename are the same */
if(retval == 0 && option_values.delete_input && strcmp(infilename, "-") && internal_outfilename == 0)
flac_unlink(infilename);
if(internal_outfilename != 0)
free(internal_outfilename);
return retval;
}
int decode_file(const char *infilename)
{
int retval;
FLAC__bool treat_as_ogg = false;
FileFormat output_format = FORMAT_WAVE;
decode_options_t decode_options;
const char *outfilename = get_decoded_outfilename(infilename);
if(0 == outfilename) {
flac__utils_printf(stderr, 1, "ERROR: filename too long: %s", infilename);
return 1;
}
/*
* Error if output file already exists (and -f not used).
* Use grabbag__file_get_filesize() as a cheap way to check.
*/
if(!option_values.test_only && !option_values.force_file_overwrite && strcmp(outfilename, "-") && grabbag__file_get_filesize(outfilename) != (FLAC__off_t)(-1)) {
flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
return 1;
}
if(option_values.force_raw_format)
output_format = FORMAT_RAW;
else if(
option_values.force_aiff_format ||
(strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".aif")) ||
(strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".aiff"))
)
output_format = FORMAT_AIFF;
else if(
option_values.force_rf64_format ||
(strlen(outfilename) >= 5 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-5), ".rf64"))
)
output_format = FORMAT_RF64;
else if(
option_values.force_wave64_format ||
(strlen(outfilename) >= 4 && 0 == FLAC__STRCASECMP(outfilename+(strlen(outfilename)-4), ".w64"))
)
output_format = FORMAT_WAVE64;
else
output_format = FORMAT_WAVE;
if(!option_values.test_only && !option_values.analyze) {
if(output_format == FORMAT_RAW && (option_values.format_is_big_endian < 0 || option_values.format_is_unsigned_samples < 0))
return usage_error("ERROR: for decoding to a raw file you must specify a value for --endian and --sign\n");
}
if(option_values.keep_foreign_metadata) {
if(0 == strcmp(infilename, "-") || 0 == strcmp(outfilename, "-"))
return usage_error("ERROR: --keep-foreign-metadata cannot be used when decoding from stdin or to stdout\n");
if(output_format != FORMAT_WAVE && output_format != FORMAT_WAVE64 && output_format != FORMAT_RF64 && output_format != FORMAT_AIFF && output_format != FORMAT_AIFF_C)
return usage_error("ERROR: --keep-foreign-metadata can only be used with WAVE, Wave64, RF64, or AIFF output\n");
}
if(option_values.use_ogg)
treat_as_ogg = true;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".oga"))
treat_as_ogg = true;
else if(strlen(infilename) >= 4 && 0 == FLAC__STRCASECMP(infilename+(strlen(infilename)-4), ".ogg"))
treat_as_ogg = true;
else
treat_as_ogg = false;
#if !FLAC__HAS_OGG
if(treat_as_ogg) {
flac__utils_printf(stderr, 1, "%s: Ogg support has not been built into this copy of flac\n", infilename);
return 1;
}
#endif
if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &decode_options.skip_specification) || decode_options.skip_specification.is_relative)
return usage_error("ERROR: invalid value for --skip\n");
if(!flac__utils_parse_skip_until_specification(option_values.until_specification, &decode_options.until_specification)) /*@@@ more checks: no + without --skip, no - unless known total_samples_to_{en,de}code */
return usage_error("ERROR: invalid value for --until\n");
/* if there is no "--until" we want to default to "--until=-0" */
if(0 == option_values.until_specification)
decode_options.until_specification.is_relative = true;
if(option_values.cue_specification) {
if(!flac__utils_parse_cue_specification(option_values.cue_specification, &decode_options.cue_specification))
return usage_error("ERROR: invalid value for --cue\n");
decode_options.has_cue_specification = true;
}
else
decode_options.has_cue_specification = false;
decode_options.treat_warnings_as_errors = option_values.treat_warnings_as_errors;
decode_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
decode_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
#if FLAC__HAS_OGG
decode_options.is_ogg = treat_as_ogg;
decode_options.use_first_serial_number = !option_values.has_serial_number;
decode_options.serial_number = option_values.serial_number;
#endif
decode_options.channel_map_none = option_values.channel_map_none;
decode_options.format = output_format;
if(output_format == FORMAT_RAW) {
decode_options.format_options.raw.is_big_endian = option_values.format_is_big_endian;
decode_options.format_options.raw.is_unsigned_samples = option_values.format_is_unsigned_samples;
retval = flac__decode_file(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, decode_options);
}
else {
decode_options.format_options.iff.foreign_metadata = 0;
/* initialize foreign metadata if requested */
if(option_values.keep_foreign_metadata) {
decode_options.format_options.iff.foreign_metadata =
flac__foreign_metadata_new(
output_format==FORMAT_WAVE || output_format==FORMAT_RF64?
FOREIGN_BLOCK_TYPE__RIFF :
output_format==FORMAT_WAVE64?
FOREIGN_BLOCK_TYPE__WAVE64 :
FOREIGN_BLOCK_TYPE__AIFF
);
if(0 == decode_options.format_options.iff.foreign_metadata) {
flac__utils_printf(stderr, 1, "ERROR: creating foreign metadata object\n");
return 1;
}
}
retval = flac__decode_file(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, decode_options);
if(decode_options.format_options.iff.foreign_metadata)
flac__foreign_metadata_delete(decode_options.format_options.iff.foreign_metadata);
}
if(retval == 0 && strcmp(infilename, "-")) {
if(option_values.preserve_modtime && strcmp(outfilename, "-"))
grabbag__file_copy_metadata(infilename, outfilename);
if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
flac_unlink(infilename);
}
return retval;
}
const char *get_encoded_outfilename(const char *infilename)
{
const char *suffix = (option_values.use_ogg? ".oga" : ".flac");
return get_outfilename(infilename, suffix);
}
const char *get_decoded_outfilename(const char *infilename)
{
const char *suffix;
if(option_values.analyze) {
suffix = ".ana";
}
else if(option_values.force_raw_format) {
suffix = ".raw";
}
else if(option_values.force_aiff_format) {
suffix = ".aiff";
}
else if(option_values.force_rf64_format) {
suffix = ".rf64";
}
else if(option_values.force_wave64_format) {
suffix = ".w64";
}
else {
suffix = ".wav";
}
return get_outfilename(infilename, suffix);
}
const char *get_outfilename(const char *infilename, const char *suffix)
{
if(0 == option_values.cmdline_forced_outfilename) {
static char buffer[4096]; /* @@@ bad MAGIC NUMBER */
if(0 == strcmp(infilename, "-") || option_values.force_to_stdout) {
safe_strncpy(buffer, "-", sizeof(buffer));
}
else {
char *p;
if (flac__strlcpy(buffer, option_values.output_prefix? option_values.output_prefix : "", sizeof buffer) >= sizeof buffer)
return 0;
if (flac__strlcat(buffer, infilename, sizeof buffer) >= sizeof buffer)
return 0;
/* the . must come after any / to avoid problems with, e.g. "some.directory/extensionless-filename" */
if(0 == (p = strrchr(buffer, '.')) || strchr(p, '/')) {
if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
return 0;
}
else {
*p = '\0';
if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
return 0;
}
}
return buffer;
}
else
return option_values.cmdline_forced_outfilename;
}
void die(const char *message)
{
FLAC__ASSERT(0 != message);
flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
exit(1);
}
int conditional_fclose(FILE *f)
{
if(f == 0 || f == stdin || f == stdout)
return 0;
else
return fclose(f);
}
char *local_strdup(const char *source)
{
char *ret;
FLAC__ASSERT(0 != source);
if(0 == (ret = strdup(source)))
die("out of memory during strdup()");
return ret;
}