add more informative error info for some common errors; also, no not exit with error...
[flac.git] / src / flac / main.c
index c071e3f..4380506 100644 (file)
@@ -1,5 +1,5 @@
 /* flac - Command-line FLAC encoder/decoder
- * Copyright (C) 2000,2001  Josh Coalson
+ * Copyright (C) 2000,2001,2002,2003,2004  Josh Coalson
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  */
 
 #include <ctype.h>
+#include <locale.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#ifndef _MSC_VER
+#include <time.h>
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#if !defined _MSC_VER && !defined __MINGW32__
 /* unlink is in stdio.h in VC++ */
 #include <unistd.h> /* for unlink() */
+#else
+#define strcasecmp stricmp
 #endif
 #include "FLAC/all.h"
+#include "share/grabbag.h"
 #include "analyze.h"
 #include "decode.h"
 #include "encode.h"
-#include "file.h"
-
-static int usage(const char *message, ...);
-static int encode_file(const char *infilename, const char *forced_outfilename, FLAC__bool is_last_file);
-static int decode_file(const char *infilename, const char *forced_outfilename);
-
-FLAC__bool verify = false, verbose = true, lax = false, test_only = false, analyze = false;
-FLAC__bool do_mid_side = true, loose_mid_side = false, do_exhaustive_model_search = false, do_qlp_coeff_prec_search = false;
-FLAC__bool force_to_stdout = false, delete_input = false, sector_align = false;
-const char *cmdline_forced_outfilename = 0, *output_prefix = 0;
-analysis_options aopts = { false, false };
-unsigned padding = 0;
-unsigned max_lpc_order = 8;
-unsigned qlp_coeff_precision = 0;
-FLAC__uint64 skip = 0;
-int format_is_wave = -1, format_is_big_endian = -1, format_is_unsigned_samples = false;
-int format_channels = -1, format_bps = -1, format_sample_rate = -1;
-int blocksize = -1, min_residual_partition_order = -1, max_residual_partition_order = -1, rice_parameter_search_dist = -1;
-char requested_seek_points[50000]; /* @@@ bad MAGIC NUMBER */
-int num_requested_seek_points = -1; /* -1 => no -S options were given, 0 => -S- was given */
-FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
-FLAC__int32 *align_reservoir[2] = { align_reservoir_0, align_reservoir_1 };
-unsigned align_reservoir_samples = 0; /* 0 .. 587 */
+#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
+
+typedef enum { RAW, WAV, AIF } FileFormat;
+
+static int do_it();
+
+static FLAC__bool init_options();
+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();
+
+static int usage_error(const char *message, ...);
+static void short_usage();
+static void show_version();
+static void show_help();
+static void show_explain();
+static void format_mistake(const char *infilename, const char *wrong, const char *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 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 },
+       { "force"            , share__no_argument, 0, 'f' },
+       { "delete-input-file", 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 },
+
+       /*
+        * 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 },
+       { "tag"                       , share__required_argument, 0, 'T' },
+       { "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' },
+       { "super-secret-totally-impractical-compression-level", share__no_argument, 0, 0 },
+       { "verify"                    , share__no_argument, 0, 'V' },
+       { "force-aiff-format"         , share__no_argument, 0, 0 },
+       { "force-raw-format"          , share__no_argument, 0, 0 },
+       { "lax"                       , share__no_argument, 0, 0 },
+       { "replay-gain"               , share__no_argument, 0, 0 },
+       { "sector-align"              , share__no_argument, 0, 0 },
+       { "seekpoint"                 , share__required_argument, 0, 'S' },
+       { "padding"                   , share__required_argument, 0, 'P' },
+#ifdef 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' },
+       { "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 },
+
+       /*
+        * analysis options
+        */
+       { "residual-gnuplot", share__no_argument, 0, 0 },
+       { "residual-text", share__no_argument, 0, 0 },
+
+       /*
+        * negatives
+        */
+       { "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-replay-gain"            , share__no_argument, 0, 0 },
+       { "no-sector-align"           , share__no_argument, 0, 0 },
+       { "no-lax"                    , share__no_argument, 0, 0 },
+#ifdef 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-residual-gnuplot"       , share__no_argument, 0, 0 },
+       { "no-residual-text"          , 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 },
+
+       {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 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 do_mid_side;
+       FLAC__bool loose_mid_side;
+       FLAC__bool do_exhaustive_model_search;
+       FLAC__bool do_escape_coding;
+       FLAC__bool do_qlp_coeff_prec_search;
+       FLAC__bool force_to_stdout;
+       FLAC__bool force_aiff_format;
+       FLAC__bool force_raw_format;
+       FLAC__bool delete_input;
+       FLAC__bool replay_gain;
+       FLAC__bool sector_align;
+       const char *cmdline_forced_outfilename;
+       const char *output_prefix;
+       analysis_options aopts;
+       int padding;
+       unsigned max_lpc_order;
+       unsigned qlp_coeff_precision;
+       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;
+       int blocksize;
+       int min_residual_partition_order;
+       int max_residual_partition_order;
+       int rice_parameter_search_dist;
+       char requested_seek_points[50000]; /* 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;
+
+       unsigned num_files;
+       char **filenames;
+
+       FLAC__StreamMetadata *vorbis_comment;
+
+       struct {
+               FLAC__bool disable_constant_subframes;
+               FLAC__bool disable_fixed_subframes;
+               FLAC__bool disable_verbatim_subframes;
+       } debug;
+} option_values;
+
+
+/*
+ * miscellaneous globals
+ */
+
+static FLAC__int32 align_reservoir_0[588], align_reservoir_1[588]; /* for carrying over samples from --sector-align */
+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 i, retval = 0;
-       FLAC__bool mode_decode = false;
-
-       if(argc <= 1)
-               return usage(0);
-
-       /* get the options */
-       for(i = 1; i < argc; i++) {
-               if(argv[i][0] != '-' || argv[i][1] == 0)
-                       break;
-               if(0 == strcmp(argv[i], "-d"))
-                       mode_decode = true;
-               else if(0 == strcmp(argv[i], "-a")) {
-                       mode_decode = true;
-                       analyze = true;
-               }
-               else if(0 == strcmp(argv[i], "-t")) {
-                       mode_decode = true;
-                       test_only = true;
-               }
-               else if(0 == strcmp(argv[i], "-c"))
-                       force_to_stdout = true;
-               else if(0 == strcmp(argv[i], "-s"))
-                       verbose = false;
-               else if(0 == strcmp(argv[i], "-s-"))
-                       verbose = true;
-               else if(0 == strcmp(argv[i], "-S")) {
-                       if(num_requested_seek_points < 0)
-                               num_requested_seek_points = 0;
-                       num_requested_seek_points++;
-                       strcat(requested_seek_points, argv[++i]);
-                       strcat(requested_seek_points, "<");
-               }
-               else if(0 == strcmp(argv[i], "-S-")) {
-                       num_requested_seek_points = 0;
-                       requested_seek_points[0] = '\0';
-               }
-               else if(0 == strcmp(argv[i], "--delete-input-file"))
-                       delete_input = true;
-               else if(0 == strcmp(argv[i], "--delete-input-file-"))
-                       delete_input = false;
-               else if(0 == strcmp(argv[i], "--output-prefix"))
-                       output_prefix = argv[++i];
-               else if(0 == strcmp(argv[i], "--sector-align"))
-                       sector_align = true;
-               else if(0 == strcmp(argv[i], "--sector-align-"))
-                       sector_align = false;
-               else if(0 == strcmp(argv[i], "--skip"))
-                       skip = (FLAC__uint64)atoi(argv[++i]); /* @@@ takes a pretty damn big file to overflow atoi() here, but it could happen */
-               else if(0 == strcmp(argv[i], "--lax"))
-                       lax = true;
-               else if(0 == strcmp(argv[i], "--lax-"))
-                       lax = false;
-               else if(0 == strcmp(argv[i], "-b"))
-                       blocksize = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-e"))
-                       do_exhaustive_model_search = true;
-               else if(0 == strcmp(argv[i], "-e-"))
-                       do_exhaustive_model_search = false;
-               else if(0 == strcmp(argv[i], "-l"))
-                       max_lpc_order = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-m")) {
-                       do_mid_side = true;
-                       loose_mid_side = false;
-               }
-               else if(0 == strcmp(argv[i], "-m-"))
-                       do_mid_side = loose_mid_side = false;
-               else if(0 == strcmp(argv[i], "-M"))
-                       loose_mid_side = do_mid_side = true;
-               else if(0 == strcmp(argv[i], "-M-"))
-                       loose_mid_side = do_mid_side = false;
-               else if(0 == strcmp(argv[i], "-o"))
-                       cmdline_forced_outfilename = argv[++i];
-               else if(0 == strcmp(argv[i], "-p"))
-                       do_qlp_coeff_prec_search = true;
-               else if(0 == strcmp(argv[i], "-p-"))
-                       do_qlp_coeff_prec_search = false;
-               else if(0 == strcmp(argv[i], "-P"))
-                       padding = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-q"))
-                       qlp_coeff_precision = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-r")) {
-                       char *p = strchr(argv[++i], ',');
-                       if(0 == p) {
-                               min_residual_partition_order = 0;
-                               max_residual_partition_order = atoi(argv[i]);
-                       }
-                       else {
-                               min_residual_partition_order = atoi(argv[i]);
-                               max_residual_partition_order = atoi(++p);
-                       }
-               }
-               else if(0 == strcmp(argv[i], "-R"))
-                       rice_parameter_search_dist = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-V"))
-                       verify = true;
-               else if(0 == strcmp(argv[i], "-V-"))
-                       verify = false;
-               else if(0 == strcmp(argv[i], "-fb"))
-                       format_is_big_endian = true;
-               else if(0 == strcmp(argv[i], "-fl"))
-                       format_is_big_endian = false;
-               else if(0 == strcmp(argv[i], "-fc"))
-                       format_channels = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-fp"))
-                       format_bps = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-fs"))
-                       format_sample_rate = atoi(argv[++i]);
-               else if(0 == strcmp(argv[i], "-fu"))
-                       format_is_unsigned_samples = true;
-               else if(0 == strcmp(argv[i], "-fr"))
-                       format_is_wave = false;
-               else if(0 == strcmp(argv[i], "-fw"))
-                       format_is_wave = true;
-               else if(0 == strcmp(argv[i], "--a-rgp"))
-                       aopts.do_residual_gnuplot = true;
-               else if(0 == strcmp(argv[i], "--a-rgp-"))
-                       aopts.do_residual_gnuplot = false;
-               else if(0 == strcmp(argv[i], "--a-rtext"))
-                       aopts.do_residual_text = true;
-               else if(0 == strcmp(argv[i], "--a-rtext-"))
-                       aopts.do_residual_text = false;
-               else if(0 == strcmp(argv[i], "-0")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = false;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = max_residual_partition_order = 2;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 0;
-               }
-               else if(0 == strcmp(argv[i], "-1")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = true;
-                       loose_mid_side = true;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = max_residual_partition_order = 2;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 0;
-               }
-               else if(0 == strcmp(argv[i], "-2")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = true;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = 0;
-                       max_residual_partition_order = 3;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 0;
-               }
-               else if(0 == strcmp(argv[i], "-3")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = false;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = max_residual_partition_order = 3;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 6;
-               }
-               else if(0 == strcmp(argv[i], "-4")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = true;
-                       loose_mid_side = true;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = max_residual_partition_order = 3;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 8;
-               }
-               else if(0 == strcmp(argv[i], "-5")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = true;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = max_residual_partition_order = 3;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 8;
-               }
-               else if(0 == strcmp(argv[i], "-6")) {
-                       do_exhaustive_model_search = false;
-                       do_mid_side = true;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = 0;
-                       max_residual_partition_order = 4;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 8;
-               }
-               else if(0 == strcmp(argv[i], "-7")) {
-                       do_exhaustive_model_search = true;
-                       do_mid_side = true;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = 0;
-                       max_residual_partition_order = 6;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 8;
-               }
-               else if(0 == strcmp(argv[i], "-8")) {
-                       do_exhaustive_model_search = true;
-                       do_mid_side = true;
-                       loose_mid_side = false;
-                       qlp_coeff_precision = 0;
-                       min_residual_partition_order = 0;
-                       max_residual_partition_order = 6;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 12;
-               }
-               else if(0 == strcmp(argv[i], "-9")) {
-                       do_exhaustive_model_search = true;
-                       do_mid_side = true;
-                       loose_mid_side = false;
-                       do_qlp_coeff_prec_search = true;
-                       min_residual_partition_order = 0;
-                       max_residual_partition_order = 16;
-                       rice_parameter_search_dist = 0;
-                       max_lpc_order = 32;
-               }
-               else if(isdigit((int)(argv[i][1]))) {
-                       return usage("ERROR: compression level '%s' is still reserved\n", argv[i]);
-               }
-               else {
-                       return usage("ERROR: invalid option '%s'\n", argv[i]);
-               }
-       }
+       int retval = 0;
 
-       /* tweak options; validate the values */
-       if(!mode_decode) {
-               if(blocksize < 0) {
-                       if(max_lpc_order == 0)
-                               blocksize = 1152;
-                       else
-                               blocksize = 4608;
-               }
-               if(max_residual_partition_order < 0) {
-                       if(blocksize <= 1152)
-                               max_residual_partition_order = 2;
-                       else if(blocksize <= 2304)
-                               max_residual_partition_order = 3;
-                       else if(blocksize <= 4608)
-                               max_residual_partition_order = 3;
-                       else
-                               max_residual_partition_order = 4;
-                       min_residual_partition_order = max_residual_partition_order;
-               }
-               if(rice_parameter_search_dist < 0) {
-                       rice_parameter_search_dist = 0;
-               }
+       setlocale(LC_ALL, "");
+       if(!init_options()) {
+               flac__utils_printf(stderr, 1, "ERROR: allocating memory\n");
+               retval = 1;
        }
        else {
-               if(test_only) {
-                       if(skip > 0)
-                               return usage("ERROR: --skip is not allowed in test mode\n");
-               }
+               if((retval = parse_options(argc, argv)) == 0)
+                       retval = do_it();
        }
 
-       FLAC__ASSERT(blocksize >= 0 || mode_decode);
+       free_options();
 
-       if(format_channels >= 0) {
-               if(format_channels == 0 || (unsigned)format_channels > FLAC__MAX_CHANNELS)
-                       return usage("ERROR: invalid number of channels '%u', must be > 0 and <= %u\n", format_channels, FLAC__MAX_CHANNELS);
-       }
-       if(format_bps >= 0) {
-               if(format_bps != 8 && format_bps != 16 && format_bps != 24)
-                       return usage("ERROR: invalid bits per sample '%u' (must be 8/16/24)\n", format_bps);
-       }
-       if(format_sample_rate >= 0) {
-               if(format_sample_rate == 0 || (unsigned)format_sample_rate > FLAC__MAX_SAMPLE_RATE)
-                       return usage("ERROR: invalid sample rate '%u', must be > 0 and <= %u\n", format_sample_rate, FLAC__MAX_SAMPLE_RATE);
-       }
-       if(!mode_decode && ((unsigned)blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)blocksize > FLAC__MAX_BLOCK_SIZE)) {
-               return usage("ERROR: invalid blocksize '%u', must be >= %u and <= %u\n", (unsigned)blocksize, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
-       }
-       if(qlp_coeff_precision > 0 && qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
-               return usage("ERROR: invalid value for -q '%u', must be 0 or >= %u\n", qlp_coeff_precision, FLAC__MIN_QLP_COEFF_PRECISION);
-       }
+       return retval;
+}
+
+int do_it()
+{
+       int retval = 0;
 
-       if(sector_align) {
-               if(mode_decode)
-                       return usage("ERROR: --sector-align only allowed for encoding\n");
-               else if(skip > 0)
-                       return usage("ERROR: --sector-align not allowed with --skip\n");
-               else if(format_channels >= 0 && format_channels != 2)
-                       return usage("ERROR: --sector-align can only be done with stereo input\n");
-               else if(format_sample_rate >= 0 && format_sample_rate != 2)
-                       return usage("ERROR: --sector-align can only be done with sample rate of 44100\n");
+       if(option_values.show_version) {
+               show_version();
+               return 0;
        }
-       if(argc - i > 1 && cmdline_forced_outfilename) {
-               return usage("ERROR: -o cannot be used with multiple files\n");
+       else if(option_values.show_explain) {
+               show_explain();
+               return 0;
        }
-       if(cmdline_forced_outfilename && output_prefix) {
-               return usage("ERROR: --output-prefix conflicts with -o\n");
+       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(option_values.blocksize < 0) {
+                               if(option_values.max_lpc_order == 0)
+                                       option_values.blocksize = 1152;
+                               else
+                                       option_values.blocksize = 4608;
+                       }
+                       if(option_values.max_residual_partition_order < 0) {
+                               if(option_values.blocksize <= 1152)
+                                       option_values.max_residual_partition_order = 2;
+                               else if(option_values.blocksize <= 2304)
+                                       option_values.max_residual_partition_order = 3;
+                               else if(option_values.blocksize <= 4608)
+                                       option_values.max_residual_partition_order = 3;
+                               else
+                                       option_values.max_residual_partition_order = 4;
+                               option_values.min_residual_partition_order = option_values.max_residual_partition_order;
+                       }
+                       if(option_values.rice_parameter_search_dist < 0) {
+                               option_values.rice_parameter_search_dist = 0;
+                       }
+                       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(verbose) {
-               fprintf(stderr, "\n");
-               fprintf(stderr, "flac %s, Copyright (C) 2000,2001 Josh Coalson\n", FLAC__VERSION_STRING);
-               fprintf(stderr, "flac comes with ABSOLUTELY NO WARRANTY.  This is free software, and you are\n");
-               fprintf(stderr, "welcome to redistribute it under certain conditions.  Type `flac' for details.\n\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");
+
+               FLAC__ASSERT(option_values.blocksize >= 0 || option_values.mode_decode);
+
+               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 && option_values.force_aiff_format)
+                       return usage_error("ERROR: only one of --force-raw-format and --force-aiff-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.mode_decode && ((unsigned)option_values.blocksize < FLAC__MIN_BLOCK_SIZE || (unsigned)option_values.blocksize > FLAC__MAX_BLOCK_SIZE)) {
+                       return usage_error("ERROR: invalid blocksize '%u', must be >= %u and <= %u\n", (unsigned)option_values.blocksize, FLAC__MIN_BLOCK_SIZE, FLAC__MAX_BLOCK_SIZE);
+               }
+               if(option_values.qlp_coeff_precision > 0 && option_values.qlp_coeff_precision < FLAC__MIN_QLP_COEFF_PRECISION) {
+                       return usage_error("ERROR: invalid value '%u' for qlp coeff precision, must be 0 or >= %u\n", option_values.qlp_coeff_precision, FLAC__MIN_QLP_COEFF_PRECISION);
+               }
 
-               if(!mode_decode) {
-                       fprintf(stderr, "options:%s%s%s -P %u -b %u%s -l %u%s%s -q %u -r %u,%u -R %u%s\n",
-                               delete_input?" --delete-input-file":"", sector_align?" --sector-align":"", lax?" --lax":"",
-                               padding, (unsigned)blocksize, loose_mid_side?" -M":do_mid_side?" -m":"", max_lpc_order,
-                               do_exhaustive_model_search?" -e":"", do_qlp_coeff_prec_search?" -p":"",
-                               qlp_coeff_precision,
-                               (unsigned)min_residual_partition_order, (unsigned)max_residual_partition_order, (unsigned)rice_parameter_search_dist,
-                               verify? " -V":""
-                       );
+               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");
+                       /*
+                        * We want to reserve padding space for the ReplayGain
+                        * tags that we will set later, to avoid rewriting the
+                        * whole file.
+                        */
+                       if(option_values.padding < 0) {
+                               flac__utils_printf(stderr, 1, "NOTE: --replay-gain may leave a small PADDING block even with --no-padding\n");
+                               option_values.padding = GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
+                       }
+                       else {
+                               option_values.padding += GRABBAG__REPLAYGAIN_MAX_TAG_SPACE_REQUIRED;
+                       }
+               }
+               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(mode_decode) {
+       flac__utils_printf(stderr, 2, "\n");
+       flac__utils_printf(stderr, 2, "flac %s, Copyright (C) 2000,2001,2002,2003,2004 Josh Coalson\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) {
+               char padopt[16];
+               if(option_values.padding < 0)
+                       strcpy(padopt, "-");
+               else
+                       sprintf(padopt, " %d", option_values.padding);
+               flac__utils_printf(stderr, 2,
+                       "options:%s%s%s%s -P%s -b %u%s -l %u%s%s%s -q %u -r %u,%u%s\n",
+                       option_values.delete_input?" --delete-input-file":"",
+                       option_values.sector_align?" --sector-align":"",
+                       option_values.use_ogg?" --ogg":"",
+                       option_values.lax?" --lax":"",
+                       padopt,
+                       (unsigned)option_values.blocksize,
+                       option_values.loose_mid_side?" -M":option_values.do_mid_side?" -m":"",
+                       option_values.max_lpc_order,
+                       option_values.do_exhaustive_model_search?" -e":"",
+                       option_values.do_escape_coding?" -E":"",
+                       option_values.do_qlp_coeff_prec_search?" -p":"",
+                       option_values.qlp_coeff_precision,
+                       (unsigned)option_values.min_residual_partition_order,
+                       (unsigned)option_values.max_residual_partition_order,
+                       option_values.verify? " -V":""
+               );
+       }
+
+       if(option_values.mode_decode) {
                FLAC__bool first = true;
-               int save_format;
 
-               if(i == argc) {
-                       retval = decode_file("-", 0);
+               if(option_values.num_files == 0) {
+                       retval = decode_file("-");
                }
                else {
-                       if(i + 1 != argc)
-                               cmdline_forced_outfilename = 0;
-                       for(retval = 0; i < argc && retval == 0; i++) {
-                               if(0 == strcmp(argv[i], "-") && !first)
+                       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;
-                               save_format = format_is_wave;
-                               retval = decode_file(argv[i], 0);
-                               format_is_wave = save_format;
+                               retval |= decode_file(option_values.filenames[i]);
                                first = false;
                        }
                }
        }
        else { /* encode */
                FLAC__bool first = true;
-               int save_format;
 
-               if(i == argc) {
-                       retval = encode_file("-", 0, true);
+               if(option_values.num_files == 0) {
+                       retval = encode_file("-", first, true);
                }
                else {
-                       if(i + 1 != argc)
-                               cmdline_forced_outfilename = 0;
-                       for(retval = 0; i < argc && retval == 0; i++) {
-                               if(0 == strcmp(argv[i], "-") && !first)
+                       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;
-                               save_format = format_is_wave;
-                               retval = encode_file(argv[i], 0, i == (argc-1));
-                               format_is_wave = save_format;
+                               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 == strcmp(option_values.filenames[i], "-")) {
+                                               FLAC__ASSERT(0);
+                                               /* double protection */
+                                               flac__utils_printf(stderr, 1, "internal error\n");
+                                               return 2;
+                                       }
+                                       if(0 != (error = grabbag__replaygain_store_to_file_album(outfilename, album_gain, album_peak, /*preserve_modtime=*/true))) {
+                                               flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain album tags\n", outfilename);
+                                               retval = 1;
+                                       }
+                               }
+                       }
                }
        }
 
        return retval;
 }
 
-int usage(const char *message, ...)
+FLAC__bool init_options()
+{
+       option_values.show_help = false;
+       option_values.show_explain = false;
+       option_values.mode_decode = false;
+       option_values.verify = 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.do_mid_side = true;
+       option_values.loose_mid_side = false;
+       option_values.do_exhaustive_model_search = false;
+       option_values.do_escape_coding = false;
+       option_values.do_qlp_coeff_prec_search = false;
+       option_values.force_to_stdout = false;
+       option_values.force_aiff_format = false;
+       option_values.force_raw_format = false;
+       option_values.delete_input = false;
+       option_values.replay_gain = false;
+       option_values.sector_align = false;
+       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 = 4096;
+       option_values.max_lpc_order = 8;
+       option_values.qlp_coeff_precision = 0;
+       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.blocksize = -1;
+       option_values.min_residual_partition_order = -1;
+       option_values.max_residual_partition_order = -1;
+       option_values.rice_parameter_search_dist = -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.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.debug.disable_constant_subframes = false;
+       option_values.debug.disable_fixed_subframes = false;
+       option_values.debug.disable_verbatim_subframes = false;
+
+       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 = "0123456789ab:cdefFhHl:mMo:pP:q:r:sS:tT:vV";
+
+       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)
+{
+       char *p;
+
+       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, "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, "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, "cuesheet")) {
+                       FLAC__ASSERT(0 != option_argument);
+                       option_values.cuesheet_filename = option_argument;
+               }
+               else if(0 == strcmp(long_option, "no-cued-seekpoints")) {
+                       option_values.cued_seekpoints = false;
+               }
+               else if(0 == strcmp(long_option, "super-secret-totally-impractical-compression-level")) {
+                       option_values.lax = true;
+                       option_values.do_exhaustive_model_search = true;
+                       option_values.do_escape_coding = true;
+                       option_values.do_mid_side = true;
+                       option_values.loose_mid_side = false;
+                       option_values.do_qlp_coeff_prec_search = true;
+                       option_values.min_residual_partition_order = 0;
+                       option_values.max_residual_partition_order = 16;
+                       option_values.rice_parameter_search_dist = 0;
+                       option_values.max_lpc_order = 32;
+               }
+               else if(0 == strcmp(long_option, "force-aiff-format")) {
+                       option_values.force_aiff_format = true;
+               }
+               else if(0 == strcmp(long_option, "force-raw-format")) {
+                       option_values.force_raw_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, "sector-align")) {
+                       option_values.sector_align = true;
+               }
+#ifdef 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-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-replay-gain")) {
+                       option_values.replay_gain = false;
+               }
+               else if(0 == strcmp(long_option, "no-sector-align")) {
+                       option_values.sector_align = false;
+               }
+               else if(0 == strcmp(long_option, "no-lax")) {
+                       option_values.lax = false;
+               }
+#ifdef 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")) {
+                       option_values.do_exhaustive_model_search = false;
+               }
+               else if(0 == strcmp(long_option, "no-mid-side")) {
+                       option_values.do_mid_side = option_values.loose_mid_side = false;
+               }
+               else if(0 == strcmp(long_option, "no-adaptive-mid-side")) {
+                       option_values.loose_mid_side = option_values.do_mid_side = false;
+               }
+               else if(0 == strcmp(long_option, "no-qlp-coeff-prec-search")) {
+                       option_values.do_qlp_coeff_prec_search = false;
+               }
+               else if(0 == strcmp(long_option, "no-padding")) {
+                       option_values.padding = -1;
+               }
+               else if(0 == strcmp(long_option, "no-verify")) {
+                       option_values.verify = 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 {
+               const char *violation;
+               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, &violation))
+                                       return usage_error("ERROR: (-T/--tag) %s\n", violation);
+                               break;
+                       case '0':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = false;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 0;
+                               break;
+                       case '1':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = true;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = option_values.max_residual_partition_order = 2;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 0;
+                               break;
+                       case '2':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = 0;
+                               option_values.max_residual_partition_order = 3;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 0;
+                               break;
+                       case '3':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = false;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 6;
+                               break;
+                       case '4':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = true;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 8;
+                               break;
+                       case '5':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = option_values.max_residual_partition_order = 3;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 8;
+                               break;
+                       case '6':
+                               option_values.do_exhaustive_model_search = false;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = 0;
+                               option_values.max_residual_partition_order = 4;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 8;
+                               break;
+                       case '7':
+                               option_values.do_exhaustive_model_search = true;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = 0;
+                               option_values.max_residual_partition_order = 6;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 8;
+                               break;
+                       case '8':
+                               option_values.do_exhaustive_model_search = true;
+                               option_values.do_escape_coding = false;
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = false;
+                               option_values.qlp_coeff_precision = 0;
+                               option_values.min_residual_partition_order = 0;
+                               option_values.max_residual_partition_order = 6;
+                               option_values.rice_parameter_search_dist = 0;
+                               option_values.max_lpc_order = 12;
+                               break;
+                       case '9':
+                               return usage_error("ERROR: compression level '9' is reserved\n");
+                       case 'V':
+                               option_values.verify = true;
+                               break;
+                       case 'S':
+                               FLAC__ASSERT(0 != option_argument);
+                               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 {
+                                       strcat(option_values.requested_seek_points, option_argument);
+                                       strcat(option_values.requested_seek_points, ";");
+                               }
+                               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 -P must be >= 0\n");
+                               break;
+                       case 'b':
+                               FLAC__ASSERT(0 != option_argument);
+                               option_values.blocksize = atoi(option_argument);
+                               break;
+                       case 'e':
+                               option_values.do_exhaustive_model_search = true;
+                               break;
+                       case 'E':
+                               option_values.do_escape_coding = true;
+                               break;
+                       case 'l':
+                               FLAC__ASSERT(0 != option_argument);
+                               option_values.max_lpc_order = atoi(option_argument);
+                               break;
+                       case 'm':
+                               option_values.do_mid_side = true;
+                               option_values.loose_mid_side = false;
+                               break;
+                       case 'M':
+                               option_values.loose_mid_side = option_values.do_mid_side = true;
+                               break;
+                       case 'p':
+                               option_values.do_qlp_coeff_prec_search = true;
+                               break;
+                       case 'q':
+                               FLAC__ASSERT(0 != option_argument);
+                               option_values.qlp_coeff_precision = atoi(option_argument);
+                               break;
+                       case 'r':
+                               FLAC__ASSERT(0 != option_argument);
+                               p = strchr(option_argument, ',');
+                               if(0 == p) {
+                                       option_values.min_residual_partition_order = 0;
+                                       option_values.max_residual_partition_order = atoi(option_argument);
+                               }
+                               else {
+                                       option_values.min_residual_partition_order = atoi(option_argument);
+                                       option_values.max_residual_partition_order = atoi(++p);
+                               }
+                               break;
+                       case 'R':
+                               FLAC__ASSERT(0 != option_argument);
+                               option_values.rice_parameter_search_dist = atoi(option_argument);
+                               break;
+                       default:
+                               FLAC__ASSERT(0);
+               }
+       }
+
+       return 0;
+}
+
+void free_options()
 {
-       va_list args;
+       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);
+}
+
+int usage_error(const char *message, ...)
+{
+       if(flac__utils_verbosity_ >= 1) {
+               va_list args;
+
+               FLAC__ASSERT(0 != message);
 
-       if(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");
        }
-       fprintf(stderr, "===============================================================================\n");
-       fprintf(stderr, "flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
-       fprintf(stderr, "Copyright (C) 2000,2001  Josh Coalson\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "This program is free software; you can redistribute it and/or\n");
-       fprintf(stderr, "modify it under the terms of the GNU General Public License\n");
-       fprintf(stderr, "as published by the Free Software Foundation; either version 2\n");
-       fprintf(stderr, "of the License, or (at your option) any later version.\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "This program is distributed in the hope that it will be useful,\n");
-       fprintf(stderr, "but WITHOUT ANY WARRANTY; without even the implied warranty of\n");
-       fprintf(stderr, "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n");
-       fprintf(stderr, "GNU General Public License for more details.\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "You should have received a copy of the GNU General Public License\n");
-       fprintf(stderr, "along with this program; if not, write to the Free Software\n");
-       fprintf(stderr, "Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
-       fprintf(stderr, "===============================================================================\n");
-       fprintf(stderr, "Usage:\n");
-       fprintf(stderr, "  flac [options] [infile [...]]\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "For encoding:\n");
-       fprintf(stderr, "  the input file(s) may be a PCM RIFF WAVE file or raw samples\n");
-       fprintf(stderr, "  the output file(s) will be in FLAC format\n");
-       fprintf(stderr, "For decoding, the reverse is true\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "A single 'infile' may be - for stdin.  No 'infile' implies stdin.  Use of\n");
-       fprintf(stderr, "stdin implies -c (write to stdout).  Normally you should use:\n");
-       fprintf(stderr, "   flac [options] -o outfilename  or  flac -d [options] -o outfilename\n");
-       fprintf(stderr, "instead of:\n");
-       fprintf(stderr, "   flac [options] > outfilename   or  flac -d [options] > outfilename\n");
-       fprintf(stderr, "since the former allows flac to seek backwards to write the STREAMINFO or\n");
-       fprintf(stderr, "RIFF WAVE header contents when necessary.\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "If the unencoded filename ends with '.wav' or -fw is used, it's assumed to be\n");
-       fprintf(stderr, "RIFF WAVE.  Otherwise, flac will check for the presence of a RIFF header.  If\n");
-       fprintf(stderr, "any infile is raw you must specify the format options {-fb|fl} -fc -fp and -fs,\n");
-       fprintf(stderr, "which will apply to all raw files.  You can force a .wav file to be treated as\n");
-       fprintf(stderr, "a raw file using -fr.\n");
-       fprintf(stderr, "\n");
-       fprintf(stderr, "generic options:\n");
-       fprintf(stderr, "  -d : decode (default behavior is encode)\n");
-       fprintf(stderr, "  -t : test (same as -d except no decoded file is written)\n");
-       fprintf(stderr, "  -a : analyze (same as -d except an analysis file is written)\n");
-       fprintf(stderr, "  -c : write output to stdout\n");
-       fprintf(stderr, "  -s : silent (do not write runtime encode/decode statistics)\n");
-       fprintf(stderr, "  -o filename : force the output file name (usually flac just changes the\n");
-       fprintf(stderr, "                extension)\n");
-       fprintf(stderr, "  --delete-input-file : deletes the input file after a successful encode/decode\n");
-       fprintf(stderr, "  --skip samples : can be used both for encoding and decoding\n");
-       fprintf(stderr, "analyze options:\n");
-       fprintf(stderr, "  --a-rtext : include residual signal in text output\n");
-       fprintf(stderr, "  --a-rgp : generate gnuplot files of residual distribution of each subframe\n");
-       fprintf(stderr, "encoding options:\n");
-       fprintf(stderr, "  --lax : allow encoder to generate non-Subset files\n");
-       fprintf(stderr, "  --sector-align : align encoding of multiple files on sector boundaries\n");
-       fprintf(stderr, "  -S { # | X | #x } : include a point or points in a SEEKTABLE\n");
-       fprintf(stderr, "       #  : a specific sample number for a seek point\n");
-       fprintf(stderr, "       X  : a placeholder point (always goes at the end of the SEEKTABLE)\n");
-       fprintf(stderr, "       #x : # evenly spaced seekpoints, the first being at sample 0\n");
-       fprintf(stderr, "     You may use many -S options; the resulting SEEKTABLE will be the unique-\n");
-       fprintf(stderr, "           ified union of all such values.\n");
-       fprintf(stderr, "     With no -S options, flac defaults to '-S 100x'.  Use -S- for no SEEKTABLE.\n");
-       fprintf(stderr, "     Note: -S #x will not work if the encoder can't determine the input size\n");
-       fprintf(stderr, "           before starting.\n");
-       fprintf(stderr, "     Note: if you use -S # and # is >= samples in the input, there will be\n");
-       fprintf(stderr, "           either no seek point entered (if the input size is determinable\n");
-       fprintf(stderr, "           before encoding starts) or a placeholder point (if input size is not\n");
-       fprintf(stderr, "           determinable)\n");
-       fprintf(stderr, "  -P # : write a PADDING block of # bytes (goes after SEEKTABLE)\n");
-       fprintf(stderr, "         (0 => no PADDING block, default is -P 0)\n");
-       fprintf(stderr, "  -b # : specify blocksize in samples; default is 1152 for -l 0, else 4608;\n");
-       fprintf(stderr, "         must be 192/576/1152/2304/4608/256/512/1024/2048/4096/8192/16384/32768\n");
-       fprintf(stderr, "         (unless --lax is used)\n");
-       fprintf(stderr, "  -m   : try mid-side coding for each frame (stereo input only)\n");
-       fprintf(stderr, "  -M   : loose mid-side coding for all frames (stereo input only)\n");
-       fprintf(stderr, "  -0 .. -9 : fastest compression .. highest compression, default is -5\n");
-       fprintf(stderr, "             these are synonyms for other options:\n");
-       fprintf(stderr, "  -0   : synonymous with -l 0 -b 1152 -r 2,2\n");
-       fprintf(stderr, "  -1   : synonymous with -l 0 -b 1152 -M -r 2,2\n");
-       fprintf(stderr, "  -2   : synonymous with -l 0 -b 1152 -m -r 3\n");
-       fprintf(stderr, "  -3   : synonymous with -l 6 -b 4608 -r 3,3\n");
-       fprintf(stderr, "  -4   : synonymous with -l 8 -b 4608 -M -r 3,3\n");
-       fprintf(stderr, "  -5   : synonymous with -l 8 -b 4608 -m -r 3,3\n");
-       fprintf(stderr, "  -6   : synonymous with -l 8 -b 4608 -m -r 4\n");
-       fprintf(stderr, "  -7   : synonymous with -l 8 -b 4608 -m -e -r 6\n");
-       fprintf(stderr, "  -8   : synonymous with -l 12 -b 4608 -m -e -r 6\n");
-       fprintf(stderr, "  -9   : synonymous with -l 32 -b 4608 -m -e -r 16 -p (very slow!)\n");
-       fprintf(stderr, "  -e   : do exhaustive model search (expensive!)\n");
-       fprintf(stderr, "  -l # : specify max LPC order; 0 => use only fixed predictors\n");
-       fprintf(stderr, "  -p   : do exhaustive search of LP coefficient quantization (expensive!);\n");
-       fprintf(stderr, "         overrides -q, does nothing if using -l 0\n");
-       fprintf(stderr, "  -q # : specify precision in bits of quantized linear-predictor coefficients;\n");
-       fprintf(stderr, "         0 => let encoder decide (min is %u, default is -q 0)\n", FLAC__MIN_QLP_COEFF_PRECISION);
-       fprintf(stderr, "  -r [#,]# : [min,]max residual partition order (# is 0..16; min defaults to 0;\n");
-       fprintf(stderr, "         default is -r 0; above 4 doesn't usually help much)\n");
-       fprintf(stderr, "  -R # : Rice parameter search distance (# is 0..32; above 2 doesn't help much)\n");
-       fprintf(stderr, "  -V   : verify a correct encoding by decoding the output in parallel and\n");
-       fprintf(stderr, "         comparing to the original\n");
-       fprintf(stderr, "  -S-, -m-, -M-, -e-, -p-, -V-, --delete-input-file-, --lax-, --sector-align-\n");
-       fprintf(stderr, "  can all be used to turn off a particular option\n");
-       fprintf(stderr, "format options:\n");
-       fprintf(stderr, "  -fb | -fl : big-endian | little-endian byte order\n");
-       fprintf(stderr, "  -fc channels\n");
-       fprintf(stderr, "  -fp bits_per_sample\n");
-       fprintf(stderr, "  -fs sample_rate : in Hz\n");
-       fprintf(stderr, "  -fu : unsigned samples (default is signed)\n");
-       fprintf(stderr, "  -fr : force to raw format (even if filename ends in .wav)\n");
-       fprintf(stderr, "  -fw : force to RIFF WAVE\n");
-
-       return message? 1 : 0;
+
+       return 1;
+}
+
+void show_version()
+{
+       printf("flac %s\n", FLAC__VERSION_STRING);
+}
+
+static void usage_header()
+{
+       printf("===============================================================================\n");
+       printf("flac - Command-line FLAC encoder/decoder version %s\n", FLAC__VERSION_STRING);
+       printf("Copyright (C) 2000,2001,2002,2003,2004  Josh Coalson\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\n");
+       printf("along with this program; if not, write to the Free Software\n");
+       printf("Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.\n");
+       printf("===============================================================================\n");
+}
+
+static void usage_summary()
+{
+       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");
+}
+
+void short_usage()
+{
+       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("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");
 }
 
-int encode_file(const char *infilename, const char *forced_outfilename, FLAC__bool is_last_file)
+void show_help()
+{
+       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("  -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("      --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");
+#ifdef 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("      --sector-align           Align multiple files on sector boundaries\n");
+       printf("      --replay-gain            Calculate ReplayGain & store in Vorbis comments\n");
+       printf("      --cuesheet=FILENAME      Import cuesheet and store in CUESHEET block\n");
+       printf("  -T, --tag=FIELD=VALUE        Add a Vorbis comment; may appear multiple times\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 2,2\n");
+       printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\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 4608 -r 3,3\n");
+       printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
+       printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
+       printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
+       printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
+       printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\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("  -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("      --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("      --force-aiff-format      Force decoding to AIFF format\n");
+       printf("      --force-raw-format       Treat input or output as raw samples\n");
+       printf("negative options:\n");
+       printf("      --no-adaptive-mid-side\n");
+       printf("      --no-decode-through-errors\n");
+       printf("      --no-delete-input-file\n");
+       printf("      --no-exhaustive-model-search\n");
+       printf("      --no-lax\n");
+       printf("      --no-mid-side\n");
+#ifdef 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-sector-align\n");
+       printf("      --no-seektable\n");
+       printf("      --no-silent\n");
+       printf("      --no-force\n");
+       printf("      --no-verify\n");
+}
+
+void show_explain()
+{
+       usage_header();
+       usage_summary();
+       printf("For encoding:\n");
+       printf("  The input file(s) may be a PCM RIFF WAVE file, AIFF 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("  -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("      --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");
+#ifdef 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 '.ogg' 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("                               '.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 '0'.  When decoding and no number is\n");
+       printf("                               given, flac uses the serial number of the first\n");
+       printf("                               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 seekpoint 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("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("      --sector-align           Align encoding of multiple CD format WAVE files\n");
+       printf("                               on sector boundaries.\n");
+       printf("      --replay-gain            Calculate ReplayGain values and store in Vorbis\n");
+       printf("                               comments.  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("  -T, --tag=FIELD=VALUE        Add a Vorbis comment.  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("  -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 4096 bytes by default.\n");
+       printf("  -b, --blocksize=#            Specify the blocksize in samples; the default is\n");
+       printf("                               1152 for -l 0, else 4608; must be one of 192,\n");
+       printf("                               576, 1152, 2304, 4608, 256, 512, 1024, 2048,\n");
+       printf("                               4096, 8192, 16384, or 32768 (unless --lax is\n");
+       printf("                               used)\n");
+       printf("  -0, --compression-level-0, --fast  Synonymous with -l 0 -b 1152 -r 2,2\n");
+       printf("  -1, --compression-level-1          Synonymous with -l 0 -b 1152 -M -r 2,2\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 4608 -r 3,3\n");
+       printf("  -4, --compression-level-4          Synonymous with -l 8 -b 4608 -M -r 3,3\n");
+       printf("  -5, --compression-level-5          Synonymous with -l 8 -b 4608 -m -r 3,3\n");
+       printf("                                     -5 is the default setting\n");
+       printf("  -6, --compression-level-6          Synonymous with -l 8 -b 4608 -m -r 4\n");
+       printf("  -7, --compression-level-7          Synonymous with -l 8 -b 4608 -m -e -r 6\n");
+       printf("  -8, --compression-level-8, --best  Synonymous with -l 12 -b 4608 -m -e -r 6\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("  -l, --max-lpc-order=#              Max LPC order; 0 => only fixed predictors\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("      --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("      --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-raw-format       Force input (when encoding) or output (when\n");
+       printf("                               decoding) to be treated as raw samples\n");
+       printf("negative options:\n");
+       printf("      --no-adaptive-mid-side\n");
+       printf("      --no-decode-through-errors\n");
+       printf("      --no-delete-input-file\n");
+       printf("      --no-exhaustive-model-search\n");
+       printf("      --no-lax\n");
+       printf("      --no-mid-side\n");
+#ifdef 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-sector-align\n");
+       printf("      --no-seektable\n");
+       printf("      --no-silent\n");
+       printf("      --no-force\n");
+       printf("      --no-verify\n");
+}
+
+void format_mistake(const char *infilename, const char *wrong, const char *right)
+{
+       flac__utils_printf(stderr, 1, "WARNING: %s is not a %s file; treating as a %s file\n", infilename, wrong, right);
+}
+
+int encode_file(const char *infilename, FLAC__bool is_first_file, FLAC__bool is_last_file)
 {
        FILE *encode_infile;
-       char outfilename[4096]; /* @@@ bad MAGIC NUMBER */
-       char *p;
        FLAC__byte lookahead[12];
        unsigned lookahead_length = 0;
+       FileFormat fmt= RAW;
        int retval;
        long infilesize;
+       encode_options_t common_options;
+       const char *outfilename = get_encoded_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 && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
+               flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
+               return 1;
+       }
 
        if(0 == strcmp(infilename, "-")) {
                infilesize = -1;
-               encode_infile = stdin;
+               encode_infile = grabbag__file_get_binary_stdin();
        }
        else {
-               infilesize = flac__file_get_filesize(infilename);
+               infilesize = grabbag__file_get_filesize(infilename);
                if(0 == (encode_infile = fopen(infilename, "rb"))) {
-                       fprintf(stderr, "ERROR: can't open input file %s\n", infilename);
+                       flac__utils_printf(stderr, 1, "ERROR: can't open input file %s\n", infilename);
                        return 1;
                }
        }
 
-       if(sector_align && !format_is_wave && infilesize < 0) {
-               fprintf(stderr, "ERROR: can't --sector-align when the input size is unknown\n");
-               return 1;
-       }
-
-       if(format_is_wave < 0) {
+       if(!option_values.force_raw_format) {
                /* first set format based on name */
-               if(0 == strcasecmp(infilename+(strlen(infilename)-4), ".wav"))
-                       format_is_wave = true;
-               else
-                       format_is_wave = false;
+               if(strlen(infilename) >= 4 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".wav"))
+                       fmt= WAV;
+               else if(strlen(infilename) >= 4 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".aif"))
+                       fmt= AIF;
+               else if(strlen(infilename) >= 5 && 0 == strcasecmp(infilename+(strlen(infilename)-5), ".aiff"))
+                       fmt= AIF;
 
                /* attempt to guess the file type based on the first 12 bytes */
                if((lookahead_length = fread(lookahead, 1, 12, encode_infile)) < 12) {
-                       if(format_is_wave)
-                               fprintf(stderr, "WARNING: %s is not a WAVE file, treating as a raw file\n", infilename);
-                       format_is_wave = false;
+                       if(fmt != RAW)
+                               format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
+                       fmt= RAW;
                }
                else {
-                       if(strncmp(lookahead, "RIFF", 4) || strncmp(lookahead+8, "WAVE", 4)) {
-                               if(format_is_wave)
-                                       fprintf(stderr, "WARNING: %s is not a WAVE file, treating as a raw file\n", infilename);
-                               format_is_wave = false;
+                       if(!strncmp((const char *)lookahead, "RIFF", 4) && !strncmp((const char *)lookahead+8, "WAVE", 4))
+                               fmt= WAV;
+                       else if(!strncmp((const char *)lookahead, "FORM", 4) && !strncmp((const char *)lookahead+8, "AIFF", 4))
+                               fmt= AIF;
+                       else {
+                               if(fmt != RAW)
+                                       format_mistake(infilename, fmt == AIF ? "AIFF" : "WAVE", "raw");
+                               fmt= RAW;
                        }
-                       else
-                               format_is_wave = true;
                }
        }
 
-       if(!format_is_wave) {
-               if(format_is_big_endian < 0 || format_channels < 0 || format_bps < 0 || format_sample_rate < 0)
-                       return usage("ERROR: for encoding a raw file you must specify { -fb or -fl }, -fc, -fp, and -fs\n");
+       if(option_values.sector_align && fmt == RAW && infilesize < 0) {
+               flac__utils_printf(stderr, 1, "ERROR: can't --sector-align when the input size is unknown\n");
+               return 1;
+       }
+
+       if(fmt == 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)
+                       return usage_error("ERROR: for encoding a raw file you must specify a value for --endian, --sign, --channels, --bps, and --sample-rate\n");
+       }
+
+       if(encode_infile == stdin || option_values.force_to_stdout) {
+               if(option_values.replay_gain)
+                       return usage_error("ERROR: --replay-gain cannot be used when encoding to stdout\n");
        }
 
-       if(encode_infile == stdin || force_to_stdout)
-               strcpy(outfilename, "-");
+       if(!flac__utils_parse_skip_until_specification(option_values.skip_specification, &common_options.skip_specification) || common_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, &common_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)
+               common_options.until_specification.is_relative = true;
+
+       common_options.verify = option_values.verify;
+#ifdef FLAC__HAS_OGG
+       common_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) {
+               srand(time(0));
+               option_values.serial_number = rand();
+               option_values.has_serial_number = true;
+       }
+       common_options.serial_number = option_values.serial_number++;
+#endif
+       common_options.lax = option_values.lax;
+       common_options.do_mid_side = option_values.do_mid_side;
+       common_options.loose_mid_side = option_values.loose_mid_side;
+       common_options.do_exhaustive_model_search = option_values.do_exhaustive_model_search;
+       common_options.do_escape_coding = option_values.do_escape_coding;
+       common_options.do_qlp_coeff_prec_search = option_values.do_qlp_coeff_prec_search;
+       common_options.min_residual_partition_order = option_values.min_residual_partition_order;
+       common_options.max_residual_partition_order = option_values.max_residual_partition_order;
+       common_options.rice_parameter_search_dist = option_values.rice_parameter_search_dist;
+       common_options.max_lpc_order = option_values.max_lpc_order;
+       common_options.blocksize = (unsigned)option_values.blocksize;
+       common_options.qlp_coeff_precision = option_values.qlp_coeff_precision;
+       common_options.padding = option_values.padding;
+       common_options.requested_seek_points = option_values.requested_seek_points;
+       common_options.num_requested_seek_points = option_values.num_requested_seek_points;
+       common_options.cuesheet_filename = option_values.cuesheet_filename;
+       common_options.cued_seekpoints = option_values.cued_seekpoints;
+       common_options.is_first_file = is_first_file;
+       common_options.is_last_file = is_last_file;
+       common_options.align_reservoir = align_reservoir;
+       common_options.align_reservoir_samples = &align_reservoir_samples;
+       common_options.replay_gain = option_values.replay_gain;
+       common_options.sector_align = option_values.sector_align;
+       common_options.vorbis_comment = option_values.vorbis_comment;
+       common_options.debug.disable_constant_subframes = option_values.debug.disable_constant_subframes;
+       common_options.debug.disable_fixed_subframes = option_values.debug.disable_fixed_subframes;
+       common_options.debug.disable_verbatim_subframes = option_values.debug.disable_verbatim_subframes;
+
+       if(fmt == RAW) {
+               raw_encode_options_t options;
+
+               options.common = common_options;
+               options.is_big_endian = option_values.format_is_big_endian;
+               options.is_unsigned_samples = option_values.format_is_unsigned_samples;
+               options.channels = option_values.format_channels;
+               options.bps = option_values.format_bps;
+               options.sample_rate = option_values.format_sample_rate;
+
+               retval = flac__encode_raw(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
+       }
        else {
-               strcpy(outfilename, output_prefix? output_prefix : "");
-               strcat(outfilename, infilename);
-               if(0 == (p = strrchr(outfilename, '.')))
-                       strcat(outfilename, ".flac");
-               else {
-                       if(0 == strcmp(p, ".flac"))
-                               strcpy(p, "_new.flac");
-                       else
-                               strcpy(p, ".flac");
+               wav_encode_options_t options;
+
+               options.common = common_options;
+
+               if(fmt == AIF)
+                       retval = flac__encode_aif(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
+               else
+                       retval = flac__encode_wav(encode_infile, infilesize, infilename, outfilename, lookahead, lookahead_length, options);
+       }
+
+       if(retval == 0 && strcmp(infilename, "-")) {
+               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_title(outfilename, title_gain, title_peak, /*preserve_modtime=*/true))) {
+                                       flac__utils_printf(stderr, 1, "%s: ERROR writing ReplayGain title tags\n", outfilename);
+                               }
+                       }
+                       grabbag__file_copy_metadata(infilename, outfilename);
                }
+               if(option_values.delete_input)
+                       unlink(infilename);
+       }
+
+       return retval;
+}
+
+int decode_file(const char *infilename)
+{
+       int retval;
+       FLAC__bool treat_as_ogg = false;
+       decode_options_t common_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 && grabbag__file_get_filesize(outfilename) != (off_t)(-1)) {
+               flac__utils_printf(stderr, 1, "ERROR: output file %s already exists, use -f to override\n", outfilename);
+               return 1;
        }
-       if(0 == forced_outfilename)
-               forced_outfilename = outfilename;
-       if(0 != cmdline_forced_outfilename)
-               forced_outfilename = cmdline_forced_outfilename;
 
-       if(format_is_wave)
-               retval = flac__encode_wav(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, align_reservoir, &align_reservoir_samples, sector_align, is_last_file, verbose, skip, verify, lax, do_mid_side, loose_mid_side, do_exhaustive_model_search, do_qlp_coeff_prec_search, min_residual_partition_order, max_residual_partition_order, rice_parameter_search_dist, max_lpc_order, (unsigned)blocksize, qlp_coeff_precision, padding, requested_seek_points, num_requested_seek_points);
+       if(!option_values.test_only && !option_values.analyze) {
+               if(option_values.force_raw_format && (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.use_ogg)
+               treat_as_ogg = true;
+       else if(strlen(infilename) >= 4 && 0 == strcasecmp(infilename+(strlen(infilename)-4), ".ogg"))
+               treat_as_ogg = true;
        else
-               retval = flac__encode_raw(encode_infile, infilesize, infilename, forced_outfilename, lookahead, lookahead_length, is_last_file, verbose, skip, verify, lax, do_mid_side, loose_mid_side, do_exhaustive_model_search, do_qlp_coeff_prec_search, min_residual_partition_order, max_residual_partition_order, rice_parameter_search_dist, max_lpc_order, (unsigned)blocksize, qlp_coeff_precision, padding, requested_seek_points, num_requested_seek_points, format_is_big_endian, format_is_unsigned_samples, format_channels, format_bps, format_sample_rate);
+               treat_as_ogg = false;
+
+#ifndef 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, &common_options.skip_specification) || common_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, &common_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)
+               common_options.until_specification.is_relative = true;
+
+       if(option_values.cue_specification) {
+               if(!flac__utils_parse_cue_specification(option_values.cue_specification, &common_options.cue_specification))
+                       return usage_error("ERROR: invalid value for --cue\n");
+               common_options.has_cue_specification = true;
+       }
+       else
+               common_options.has_cue_specification = false;
+
+       common_options.continue_through_decode_errors = option_values.continue_through_decode_errors;
+       common_options.replaygain_synthesis_spec = option_values.replaygain_synthesis_spec;
+#ifdef FLAC__HAS_OGG
+       common_options.is_ogg = treat_as_ogg;
+       common_options.use_first_serial_number = !option_values.has_serial_number;
+       common_options.serial_number = option_values.serial_number;
+#endif
+
+       if(!option_values.force_raw_format) {
+               wav_decode_options_t options;
+
+               options.common = common_options;
+
+               if(
+                       option_values.force_aiff_format ||
+                       (strlen(outfilename) >= 4 && 0 == strcasecmp(outfilename+(strlen(outfilename)-4), ".aif")) ||
+                       (strlen(outfilename) >= 5 && 0 == strcasecmp(outfilename+(strlen(outfilename)-5), ".aiff"))
+               )
+                       retval = flac__decode_aiff(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
+               else
+                       retval = flac__decode_wav(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
+       }
+       else {
+               raw_decode_options_t options;
+
+               options.common = common_options;
+               options.is_big_endian = option_values.format_is_big_endian;
+               options.is_unsigned_samples = option_values.format_is_unsigned_samples;
+
+               retval = flac__decode_raw(infilename, option_values.test_only? 0 : outfilename, option_values.analyze, option_values.aopts, options);
+       }
 
        if(retval == 0 && strcmp(infilename, "-")) {
-               if(strcmp(forced_outfilename, "-"))
-                       flac__file_copy_metadata(infilename, forced_outfilename);
-               if(delete_input)
+               if(strcmp(outfilename, "-"))
+                       grabbag__file_copy_metadata(infilename, outfilename);
+               if(option_values.delete_input && !option_values.test_only && !option_values.analyze)
                        unlink(infilename);
        }
 
-       return 0;
+       return retval;
 }
 
-int decode_file(const char *infilename, const char *forced_outfilename)
+const char *get_encoded_outfilename(const char *infilename)
 {
-       static const char *suffixes[] = { ".wav", ".raw", ".ana" };
-       char outfilename[4096]; /* @@@ bad MAGIC NUMBER */
-       char *p;
-       int retval;
+       const char *suffix = (option_values.use_ogg? ".ogg" : ".flac");
+       return get_outfilename(infilename, suffix);
+}
 
-       if(!test_only && !analyze) {
-               if(format_is_wave < 0) {
-                       format_is_wave = true;
-               }
-               if(!format_is_wave) {
-                       if(format_is_big_endian < 0)
-                               return usage("ERROR: for decoding to a raw file you must specify -fb or -fl\n");
-               }
+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";
        }
-
-       if(0 == strcmp(infilename, "-") || force_to_stdout)
-               strcpy(outfilename, "-");
        else {
-               const char *suffix = suffixes[analyze? 2 : format_is_wave? 0 : 1];
-               strcpy(outfilename, output_prefix? output_prefix : "");
-               strcat(outfilename, infilename);
-               if(0 == (p = strrchr(outfilename, '.')))
-                       strcat(outfilename, suffix);
+               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) {
+                       strcpy(buffer, "-");
+               }
                else {
-                       if(0 == strcmp(p, suffix)) {
-                               strcpy(p, "_new");
-                               strcat(p, suffix);
+                       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;
+                       if(0 == (p = strrchr(buffer, '.'))) {
+                               if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
+                                       return 0;
+                       }
+                       else {
+                               if(0 == strcmp(p, suffix)) {
+                                       *p = '\0';
+                                       if (flac__strlcat(buffer, "_new", sizeof buffer) >= sizeof buffer)
+                                               return 0;
+                               }
+                               else {
+                                       *p = '\0';
+                               }
+                               if (flac__strlcat(buffer, suffix, sizeof buffer) >= sizeof buffer)
+                                       return 0;
                        }
-                       else
-                               strcpy(p, suffix);
                }
+               return buffer;
        }
-       if(0 == forced_outfilename)
-               forced_outfilename = outfilename;
-       if(0 != cmdline_forced_outfilename)
-               forced_outfilename = cmdline_forced_outfilename;
-
-       if(format_is_wave)
-               retval = flac__decode_wav(infilename, test_only? 0 : forced_outfilename, analyze, aopts, verbose, skip);
        else
-               retval = flac__decode_raw(infilename, test_only? 0 : forced_outfilename, analyze, aopts, verbose, skip, format_is_big_endian, format_is_unsigned_samples);
+               return option_values.cmdline_forced_outfilename;
+}
 
-       if(retval == 0 && strcmp(infilename, "-")) {
-               if(strcmp(forced_outfilename, "-"))
-                       flac__file_copy_metadata(infilename, forced_outfilename);
-               if(delete_input)
-                       unlink(infilename);
-       }
+void die(const char *message)
+{
+       FLAC__ASSERT(0 != message);
+       flac__utils_printf(stderr, 1, "ERROR: %s\n", message);
+       exit(1);
+}
 
-       return 0;
+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;
 }