Check for sys/resource.h and include it conditionally.
[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"
18ec0460 34#include "network.h"
01310af2 35
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36#undef exit
37
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38
39double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
40{
41 char *tail;
42 const char *error;
43 double d = strtod(numstr, &tail);
44 if (*tail)
45 error= "Expected number for %s but found: %s\n";
46 else if (d < min || d > max)
47 error= "The value for %s was %s which is not within %f - %f\n";
48 else if(type == OPT_INT64 && (int64_t)d != d)
49 error= "Expected int64 for %s but found %s\n";
50 else
51 return d;
52 fprintf(stderr, error, context, numstr, min, max);
53 exit(1);
54}
55
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56int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
57{
58 int64_t us = parse_date(timestr, is_duration);
59 if (us == INT64_MIN) {
60 fprintf(stderr, "Invalid %s specification for %s: %s\n",
61 is_duration ? "duration" : "date", context, timestr);
62 exit(1);
63 }
64 return us;
65}
66
02d504a7 67void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
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68{
69 const OptionDef *po;
02d504a7 70 int first;
01310af2 71
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72 first = 1;
73 for(po = options; po->name != NULL; po++) {
74 char buf[64];
75 if ((po->flags & mask) == value) {
76 if (first) {
77 printf("%s", msg);
78 first = 0;
79 }
f7d78f36 80 av_strlcpy(buf, po->name, sizeof(buf));
02d504a7 81 if (po->flags & HAS_ARG) {
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82 av_strlcat(buf, " ", sizeof(buf));
83 av_strlcat(buf, po->argname, sizeof(buf));
01310af2 84 }
02d504a7 85 printf("-%-17s %s\n", buf, po->help);
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86 }
87 }
88}
89
fccfc475 90static const OptionDef* find_option(const OptionDef *po, const char *name){
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91 while (po->name != NULL) {
92 if (!strcmp(name, po->name))
93 break;
94 po++;
95 }
96 return po;
97}
98
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99void parse_options(int argc, char **argv, const OptionDef *options,
100 void (* parse_arg_function)(const char*))
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101{
102 const char *opt, *arg;
b0d7bc1e 103 int optindex, handleoptions=1;
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104 const OptionDef *po;
105
106 /* parse options */
107 optindex = 1;
108 while (optindex < argc) {
109 opt = argv[optindex++];
115329f1 110
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111 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
112 if (opt[1] == '-' && opt[2] == '\0') {
113 handleoptions = 0;
114 continue;
115 }
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116 po= find_option(options, opt + 1);
117 if (!po->name)
118 po= find_option(options, "default");
01310af2 119 if (!po->name) {
8bbf6db9 120unknown_opt:
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121 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
122 exit(1);
123 }
124 arg = NULL;
125 if (po->flags & HAS_ARG) {
126 arg = argv[optindex++];
127 if (!arg) {
128 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
129 exit(1);
130 }
131 }
132 if (po->flags & OPT_STRING) {
133 char *str;
02d504a7 134 str = av_strdup(arg);
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135 *po->u.str_arg = str;
136 } else if (po->flags & OPT_BOOL) {
137 *po->u.int_arg = 1;
26d4f26b 138 } else if (po->flags & OPT_INT) {
7c84b8bc 139 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
ffdf9a1f 140 } else if (po->flags & OPT_INT64) {
7c84b8bc 141 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
1f631450 142 } else if (po->flags & OPT_FLOAT) {
1f3d74d3 143 *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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144 } else if (po->flags & OPT_FUNC2) {
145 if(po->u.func2_arg(opt+1, arg)<0)
146 goto unknown_opt;
01310af2 147 } else {
bb270c08 148 po->u.func_arg(arg);
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149 }
150 } else {
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151 if (parse_arg_function)
152 parse_arg_function(opt);
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153 }
154 }
155}
156
157void print_error(const char *filename, int err)
158{
159 switch(err) {
160 case AVERROR_NUMEXPECTED:
161 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
162 "Use '%%d' to specify the image number:\n"
163 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
115329f1 164 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
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165 filename);
166 break;
167 case AVERROR_INVALIDDATA:
168 fprintf(stderr, "%s: Error while parsing header\n", filename);
169 break;
170 case AVERROR_NOFMT:
171 fprintf(stderr, "%s: Unknown format\n", filename);
172 break;
6f3e0b21 173 case AVERROR(EIO):
d9526386 174 fprintf(stderr, "%s: I/O error occurred\n"
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175 "Usually that means that input file is truncated and/or corrupted.\n",
176 filename);
45ce5ddb 177 break;
769e10f0 178 case AVERROR(ENOMEM):
d9526386 179 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
45ce5ddb 180 break;
24fddf48 181 case AVERROR(ENOENT):
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182 fprintf(stderr, "%s: no such file or directory\n", filename);
183 break;
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184 case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
185 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
186 break;
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187 default:
188 fprintf(stderr, "%s: Error while opening file\n", filename);
189 break;
190 }
191}
f35917b2 192
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193void show_banner(const char *program_name, int program_birth_year)
194{
69c12fbb 195 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
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196 program_name, program_birth_year);
197 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
198 fprintf(stderr, " libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
199 fprintf(stderr, " libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
200 fprintf(stderr, " libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
2208741a 201 fprintf(stderr, " libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
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202#if ENABLE_AVFILTER
203 fprintf(stderr, " libavfilter version: " AV_STRINGIFY(LIBAVFILTER_VERSION) "\n");
204#endif
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205 fprintf(stderr, " built on " __DATE__ " " __TIME__);
206#ifdef __GNUC__
207 fprintf(stderr, ", gcc: " __VERSION__ "\n");
208#else
209 fprintf(stderr, ", using a non-gcc compiler\n");
210#endif
211}
212
213void show_version(const char *program_name) {
2208741a 214 /* TODO: add function interface to avutil and avformat avdevice*/
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215 printf("%s " FFMPEG_VERSION "\n", program_name);
216 printf("libavutil %d\n"
217 "libavcodec %d\n"
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218 "libavformat %d\n"
219 "libavdevice %d\n",
220 LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
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221}
222
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223void show_license(void)
224{
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225#ifdef CONFIG_NONFREE
226 printf(
227 "This version of FFmpeg has nonfree parts compiled in.\n"
228 "Therefore it is not legally redistributable.\n"
229 );
230#elif CONFIG_GPL
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231 printf(
232 "FFmpeg is free software; you can redistribute it and/or modify\n"
233 "it under the terms of the GNU General Public License as published by\n"
234 "the Free Software Foundation; either version 2 of the License, or\n"
235 "(at your option) any later version.\n"
236 "\n"
237 "FFmpeg is distributed in the hope that it will be useful,\n"
238 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
239 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
240 "GNU General Public License for more details.\n"
241 "\n"
242 "You should have received a copy of the GNU General Public License\n"
243 "along with FFmpeg; if not, write to the Free Software\n"
244 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
245 );
246#else
247 printf(
248 "FFmpeg is free software; you can redistribute it and/or\n"
249 "modify it under the terms of the GNU Lesser General Public\n"
250 "License as published by the Free Software Foundation; either\n"
251 "version 2.1 of the License, or (at your option) any later version.\n"
252 "\n"
253 "FFmpeg is distributed in the hope that it will be useful,\n"
254 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
255 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
256 "Lesser General Public License for more details.\n"
257 "\n"
258 "You should have received a copy of the GNU Lesser General Public\n"
259 "License along with FFmpeg; if not, write to the Free Software\n"
260 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
261 );
262#endif
263}