Compile network-related code conditionally.
[libav.git] / cmdutils.c
1 /*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
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
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <string.h>
23 #include <stdlib.h>
24 #include <errno.h>
25 #include <math.h>
26
27 #include "config.h"
28 #include "avformat.h"
29 #include "avfilter.h"
30 #include "avdevice.h"
31 #include "cmdutils.h"
32 #include "avstring.h"
33 #include "version.h"
34 #ifdef CONFIG_NETWORK
35 #include "network.h"
36 #endif
37
38 #undef exit
39
40
41 double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
42 {
43 char *tail;
44 const char *error;
45 double d = strtod(numstr, &tail);
46 if (*tail)
47 error= "Expected number for %s but found: %s\n";
48 else if (d < min || d > max)
49 error= "The value for %s was %s which is not within %f - %f\n";
50 else if(type == OPT_INT64 && (int64_t)d != d)
51 error= "Expected int64 for %s but found %s\n";
52 else
53 return d;
54 fprintf(stderr, error, context, numstr, min, max);
55 exit(1);
56 }
57
58 int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
59 {
60 int64_t us = parse_date(timestr, is_duration);
61 if (us == INT64_MIN) {
62 fprintf(stderr, "Invalid %s specification for %s: %s\n",
63 is_duration ? "duration" : "date", context, timestr);
64 exit(1);
65 }
66 return us;
67 }
68
69 void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
70 {
71 const OptionDef *po;
72 int first;
73
74 first = 1;
75 for(po = options; po->name != NULL; po++) {
76 char buf[64];
77 if ((po->flags & mask) == value) {
78 if (first) {
79 printf("%s", msg);
80 first = 0;
81 }
82 av_strlcpy(buf, po->name, sizeof(buf));
83 if (po->flags & HAS_ARG) {
84 av_strlcat(buf, " ", sizeof(buf));
85 av_strlcat(buf, po->argname, sizeof(buf));
86 }
87 printf("-%-17s %s\n", buf, po->help);
88 }
89 }
90 }
91
92 static const OptionDef* find_option(const OptionDef *po, const char *name){
93 while (po->name != NULL) {
94 if (!strcmp(name, po->name))
95 break;
96 po++;
97 }
98 return po;
99 }
100
101 void parse_options(int argc, char **argv, const OptionDef *options,
102 void (* parse_arg_function)(const char*))
103 {
104 const char *opt, *arg;
105 int optindex, handleoptions=1;
106 const OptionDef *po;
107
108 /* parse options */
109 optindex = 1;
110 while (optindex < argc) {
111 opt = argv[optindex++];
112
113 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
114 if (opt[1] == '-' && opt[2] == '\0') {
115 handleoptions = 0;
116 continue;
117 }
118 po= find_option(options, opt + 1);
119 if (!po->name)
120 po= find_option(options, "default");
121 if (!po->name) {
122 unknown_opt:
123 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
124 exit(1);
125 }
126 arg = NULL;
127 if (po->flags & HAS_ARG) {
128 arg = argv[optindex++];
129 if (!arg) {
130 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
131 exit(1);
132 }
133 }
134 if (po->flags & OPT_STRING) {
135 char *str;
136 str = av_strdup(arg);
137 *po->u.str_arg = str;
138 } else if (po->flags & OPT_BOOL) {
139 *po->u.int_arg = 1;
140 } else if (po->flags & OPT_INT) {
141 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
142 } else if (po->flags & OPT_INT64) {
143 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
144 } else if (po->flags & OPT_FLOAT) {
145 *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
146 } else if (po->flags & OPT_FUNC2) {
147 if(po->u.func2_arg(opt+1, arg)<0)
148 goto unknown_opt;
149 } else {
150 po->u.func_arg(arg);
151 }
152 } else {
153 if (parse_arg_function)
154 parse_arg_function(opt);
155 }
156 }
157 }
158
159 void print_error(const char *filename, int err)
160 {
161 switch(err) {
162 case AVERROR_NUMEXPECTED:
163 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
164 "Use '%%d' to specify the image number:\n"
165 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
166 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
167 filename);
168 break;
169 case AVERROR_INVALIDDATA:
170 fprintf(stderr, "%s: Error while parsing header\n", filename);
171 break;
172 case AVERROR_NOFMT:
173 fprintf(stderr, "%s: Unknown format\n", filename);
174 break;
175 case AVERROR(EIO):
176 fprintf(stderr, "%s: I/O error occurred\n"
177 "Usually that means that input file is truncated and/or corrupted.\n",
178 filename);
179 break;
180 case AVERROR(ENOMEM):
181 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
182 break;
183 case AVERROR(ENOENT):
184 fprintf(stderr, "%s: no such file or directory\n", filename);
185 break;
186 #ifdef CONFIG_NETWORK
187 case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
188 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
189 break;
190 #endif
191 default:
192 fprintf(stderr, "%s: Error while opening file\n", filename);
193 break;
194 }
195 }
196
197 void show_banner(const char *program_name, int program_birth_year)
198 {
199 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
200 program_name, program_birth_year);
201 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
202 fprintf(stderr, " libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
203 fprintf(stderr, " libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
204 fprintf(stderr, " libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
205 fprintf(stderr, " libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
206 #if ENABLE_AVFILTER
207 fprintf(stderr, " libavfilter version: " AV_STRINGIFY(LIBAVFILTER_VERSION) "\n");
208 #endif
209 fprintf(stderr, " built on " __DATE__ " " __TIME__);
210 #ifdef __GNUC__
211 fprintf(stderr, ", gcc: " __VERSION__ "\n");
212 #else
213 fprintf(stderr, ", using a non-gcc compiler\n");
214 #endif
215 }
216
217 void show_version(const char *program_name) {
218 /* TODO: add function interface to avutil and avformat avdevice*/
219 printf("%s " FFMPEG_VERSION "\n", program_name);
220 printf("libavutil %d\n"
221 "libavcodec %d\n"
222 "libavformat %d\n"
223 "libavdevice %d\n",
224 LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
225 }
226
227 void show_license(void)
228 {
229 #ifdef CONFIG_NONFREE
230 printf(
231 "This version of FFmpeg has nonfree parts compiled in.\n"
232 "Therefore it is not legally redistributable.\n"
233 );
234 #elif CONFIG_GPL
235 printf(
236 "FFmpeg is free software; you can redistribute it and/or modify\n"
237 "it under the terms of the GNU General Public License as published by\n"
238 "the Free Software Foundation; either version 2 of the License, or\n"
239 "(at your option) any later version.\n"
240 "\n"
241 "FFmpeg is distributed in the hope that it will be useful,\n"
242 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
243 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
244 "GNU General Public License for more details.\n"
245 "\n"
246 "You should have received a copy of the GNU General Public License\n"
247 "along with FFmpeg; if not, write to the Free Software\n"
248 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
249 );
250 #else
251 printf(
252 "FFmpeg is free software; you can redistribute it and/or\n"
253 "modify it under the terms of the GNU Lesser General Public\n"
254 "License as published by the Free Software Foundation; either\n"
255 "version 2.1 of the License, or (at your option) any later version.\n"
256 "\n"
257 "FFmpeg is distributed in the hope that it will be useful,\n"
258 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
259 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
260 "Lesser General Public License for more details.\n"
261 "\n"
262 "You should have received a copy of the GNU Lesser General Public\n"
263 "License along with FFmpeg; if not, write to the Free Software\n"
264 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
265 );
266 #endif
267 }