use FF_NETERROR to make winsock happy, patch from prossATxvidDoTorg
[libav.git] / cmdutils.c
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1/*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
01310af2 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
01310af2 20 */
364a9607 21
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22#include <string.h>
23#include <stdlib.h>
24#include <errno.h>
7c84b8bc 25#include <math.h>
0f4e8165 26
63d026b1 27#include "config.h"
01310af2 28#include "avformat.h"
ab4b28f0 29#include "avfilter.h"
2208741a 30#include "avdevice.h"
01310af2 31#include "cmdutils.h"
f7d78f36 32#include "avstring.h"
86074ed1 33#include "version.h"
01310af2 34
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35#undef exit
36
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37
38double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
39{
40 char *tail;
41 const char *error;
42 double d = strtod(numstr, &tail);
43 if (*tail)
44 error= "Expected number for %s but found: %s\n";
45 else if (d < min || d > max)
46 error= "The value for %s was %s which is not within %f - %f\n";
47 else if(type == OPT_INT64 && (int64_t)d != d)
48 error= "Expected int64 for %s but found %s\n";
49 else
50 return d;
51 fprintf(stderr, error, context, numstr, min, max);
52 exit(1);
53}
54
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55int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
56{
57 int64_t us = parse_date(timestr, is_duration);
58 if (us == INT64_MIN) {
59 fprintf(stderr, "Invalid %s specification for %s: %s\n",
60 is_duration ? "duration" : "date", context, timestr);
61 exit(1);
62 }
63 return us;
64}
65
02d504a7 66void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
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67{
68 const OptionDef *po;
02d504a7 69 int first;
01310af2 70
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71 first = 1;
72 for(po = options; po->name != NULL; po++) {
73 char buf[64];
74 if ((po->flags & mask) == value) {
75 if (first) {
76 printf("%s", msg);
77 first = 0;
78 }
f7d78f36 79 av_strlcpy(buf, po->name, sizeof(buf));
02d504a7 80 if (po->flags & HAS_ARG) {
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81 av_strlcat(buf, " ", sizeof(buf));
82 av_strlcat(buf, po->argname, sizeof(buf));
01310af2 83 }
02d504a7 84 printf("-%-17s %s\n", buf, po->help);
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85 }
86 }
87}
88
fccfc475 89static const OptionDef* find_option(const OptionDef *po, const char *name){
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90 while (po->name != NULL) {
91 if (!strcmp(name, po->name))
92 break;
93 po++;
94 }
95 return po;
96}
97
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98void parse_options(int argc, char **argv, const OptionDef *options,
99 void (* parse_arg_function)(const char*))
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100{
101 const char *opt, *arg;
b0d7bc1e 102 int optindex, handleoptions=1;
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103 const OptionDef *po;
104
105 /* parse options */
106 optindex = 1;
107 while (optindex < argc) {
108 opt = argv[optindex++];
115329f1 109
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110 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
111 if (opt[1] == '-' && opt[2] == '\0') {
112 handleoptions = 0;
113 continue;
114 }
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115 po= find_option(options, opt + 1);
116 if (!po->name)
117 po= find_option(options, "default");
01310af2 118 if (!po->name) {
8bbf6db9 119unknown_opt:
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120 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
121 exit(1);
122 }
123 arg = NULL;
124 if (po->flags & HAS_ARG) {
125 arg = argv[optindex++];
126 if (!arg) {
127 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
128 exit(1);
129 }
130 }
131 if (po->flags & OPT_STRING) {
132 char *str;
02d504a7 133 str = av_strdup(arg);
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134 *po->u.str_arg = str;
135 } else if (po->flags & OPT_BOOL) {
136 *po->u.int_arg = 1;
26d4f26b 137 } else if (po->flags & OPT_INT) {
7c84b8bc 138 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
ffdf9a1f 139 } else if (po->flags & OPT_INT64) {
7c84b8bc 140 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
1f631450 141 } else if (po->flags & OPT_FLOAT) {
1f3d74d3 142 *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
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143 } else if (po->flags & OPT_FUNC2) {
144 if(po->u.func2_arg(opt+1, arg)<0)
145 goto unknown_opt;
01310af2 146 } else {
bb270c08 147 po->u.func_arg(arg);
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148 }
149 } else {
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150 if (parse_arg_function)
151 parse_arg_function(opt);
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152 }
153 }
154}
155
156void print_error(const char *filename, int err)
157{
158 switch(err) {
159 case AVERROR_NUMEXPECTED:
160 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
161 "Use '%%d' to specify the image number:\n"
162 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
115329f1 163 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
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164 filename);
165 break;
166 case AVERROR_INVALIDDATA:
167 fprintf(stderr, "%s: Error while parsing header\n", filename);
168 break;
169 case AVERROR_NOFMT:
170 fprintf(stderr, "%s: Unknown format\n", filename);
171 break;
6f3e0b21 172 case AVERROR(EIO):
d9526386 173 fprintf(stderr, "%s: I/O error occurred\n"
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174 "Usually that means that input file is truncated and/or corrupted.\n",
175 filename);
45ce5ddb 176 break;
769e10f0 177 case AVERROR(ENOMEM):
d9526386 178 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
45ce5ddb 179 break;
24fddf48 180 case AVERROR(ENOENT):
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181 fprintf(stderr, "%s: no such file or directory\n", filename);
182 break;
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183 default:
184 fprintf(stderr, "%s: Error while opening file\n", filename);
185 break;
186 }
187}
f35917b2 188
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189void show_banner(const char *program_name, int program_birth_year)
190{
69c12fbb 191 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
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192 program_name, program_birth_year);
193 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
194 fprintf(stderr, " libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
195 fprintf(stderr, " libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
196 fprintf(stderr, " libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
2208741a 197 fprintf(stderr, " libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
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198#if ENABLE_AVFILTER
199 fprintf(stderr, " libavfilter version: " AV_STRINGIFY(LIBAVFILTER_VERSION) "\n");
200#endif
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201 fprintf(stderr, " built on " __DATE__ " " __TIME__);
202#ifdef __GNUC__
203 fprintf(stderr, ", gcc: " __VERSION__ "\n");
204#else
205 fprintf(stderr, ", using a non-gcc compiler\n");
206#endif
207}
208
209void show_version(const char *program_name) {
2208741a 210 /* TODO: add function interface to avutil and avformat avdevice*/
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211 printf("%s " FFMPEG_VERSION "\n", program_name);
212 printf("libavutil %d\n"
213 "libavcodec %d\n"
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214 "libavformat %d\n"
215 "libavdevice %d\n",
216 LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
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217}
218
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219void show_license(void)
220{
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221#ifdef CONFIG_NONFREE
222 printf(
223 "This version of FFmpeg has nonfree parts compiled in.\n"
224 "Therefore it is not legally redistributable.\n"
225 );
226#elif CONFIG_GPL
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227 printf(
228 "FFmpeg is free software; you can redistribute it and/or modify\n"
229 "it under the terms of the GNU General Public License as published by\n"
230 "the Free Software Foundation; either version 2 of the License, or\n"
231 "(at your option) any later version.\n"
232 "\n"
233 "FFmpeg is distributed in the hope that it will be useful,\n"
234 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
235 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
236 "GNU General Public License for more details.\n"
237 "\n"
238 "You should have received a copy of the GNU General Public License\n"
239 "along with FFmpeg; if not, write to the Free Software\n"
240 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
241 );
242#else
243 printf(
244 "FFmpeg is free software; you can redistribute it and/or\n"
245 "modify it under the terms of the GNU Lesser General Public\n"
246 "License as published by the Free Software Foundation; either\n"
247 "version 2.1 of the License, or (at your option) any later version.\n"
248 "\n"
249 "FFmpeg is distributed in the hope that it will be useful,\n"
250 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
251 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
252 "Lesser General Public License for more details.\n"
253 "\n"
254 "You should have received a copy of the GNU Lesser General Public\n"
255 "License along with FFmpeg; if not, write to the Free Software\n"
256 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
257 );
258#endif
259}