Fix configure for cross-compilation and --arch=amd64.
[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 #include "network.h"
35
36 #undef exit
37
38
39 double 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
56 int64_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
67 void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
68 {
69 const OptionDef *po;
70 int first;
71
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 }
80 av_strlcpy(buf, po->name, sizeof(buf));
81 if (po->flags & HAS_ARG) {
82 av_strlcat(buf, " ", sizeof(buf));
83 av_strlcat(buf, po->argname, sizeof(buf));
84 }
85 printf("-%-17s %s\n", buf, po->help);
86 }
87 }
88 }
89
90 static const OptionDef* find_option(const OptionDef *po, const char *name){
91 while (po->name != NULL) {
92 if (!strcmp(name, po->name))
93 break;
94 po++;
95 }
96 return po;
97 }
98
99 void parse_options(int argc, char **argv, const OptionDef *options,
100 void (* parse_arg_function)(const char*))
101 {
102 const char *opt, *arg;
103 int optindex, handleoptions=1;
104 const OptionDef *po;
105
106 /* parse options */
107 optindex = 1;
108 while (optindex < argc) {
109 opt = argv[optindex++];
110
111 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
112 if (opt[1] == '-' && opt[2] == '\0') {
113 handleoptions = 0;
114 continue;
115 }
116 po= find_option(options, opt + 1);
117 if (!po->name)
118 po= find_option(options, "default");
119 if (!po->name) {
120 unknown_opt:
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;
134 str = av_strdup(arg);
135 *po->u.str_arg = str;
136 } else if (po->flags & OPT_BOOL) {
137 *po->u.int_arg = 1;
138 } else if (po->flags & OPT_INT) {
139 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
140 } else if (po->flags & OPT_INT64) {
141 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
142 } else if (po->flags & OPT_FLOAT) {
143 *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
144 } else if (po->flags & OPT_FUNC2) {
145 if(po->u.func2_arg(opt+1, arg)<0)
146 goto unknown_opt;
147 } else {
148 po->u.func_arg(arg);
149 }
150 } else {
151 if (parse_arg_function)
152 parse_arg_function(opt);
153 }
154 }
155 }
156
157 void 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"
164 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
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;
173 case AVERROR(EIO):
174 fprintf(stderr, "%s: I/O error occurred\n"
175 "Usually that means that input file is truncated and/or corrupted.\n",
176 filename);
177 break;
178 case AVERROR(ENOMEM):
179 fprintf(stderr, "%s: memory allocation error occurred\n", filename);
180 break;
181 case AVERROR(ENOENT):
182 fprintf(stderr, "%s: no such file or directory\n", filename);
183 break;
184 case AVERROR(FF_NETERROR(EPROTONOSUPPORT)):
185 fprintf(stderr, "%s: Unsupported network protocol\n", filename);
186 break;
187 default:
188 fprintf(stderr, "%s: Error while opening file\n", filename);
189 break;
190 }
191 }
192
193 void show_banner(const char *program_name, int program_birth_year)
194 {
195 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
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");
201 fprintf(stderr, " libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
202 #if ENABLE_AVFILTER
203 fprintf(stderr, " libavfilter version: " AV_STRINGIFY(LIBAVFILTER_VERSION) "\n");
204 #endif
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
213 void show_version(const char *program_name) {
214 /* TODO: add function interface to avutil and avformat avdevice*/
215 printf("%s " FFMPEG_VERSION "\n", program_name);
216 printf("libavutil %d\n"
217 "libavcodec %d\n"
218 "libavformat %d\n"
219 "libavdevice %d\n",
220 LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
221 }
222
223 void show_license(void)
224 {
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
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 }