2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
38 double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
42 double d = strtod(numstr, &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";
51 fprintf(stderr, error, context, numstr, min, max);
55 void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
61 for(po = options; po->name != NULL; po++) {
63 if ((po->flags & mask) == value) {
68 av_strlcpy(buf, po->name, sizeof(buf));
69 if (po->flags & HAS_ARG) {
70 av_strlcat(buf, " ", sizeof(buf));
71 av_strlcat(buf, po->argname, sizeof(buf));
73 printf("-%-17s %s\n", buf, po->help);
78 static const OptionDef* find_option(const OptionDef *po, const char *name){
79 while (po->name != NULL) {
80 if (!strcmp(name, po->name))
87 void parse_options(int argc, char **argv, const OptionDef *options,
88 void (* parse_arg_function)(const char*))
90 const char *opt, *arg;
91 int optindex, handleoptions=1;
96 while (optindex < argc) {
97 opt = argv[optindex++];
99 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
100 if (opt[1] == '-' && opt[2] == '\0') {
104 po= find_option(options, opt + 1);
106 po= find_option(options, "default");
109 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
113 if (po->flags & HAS_ARG) {
114 arg = argv[optindex++];
116 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
120 if (po->flags & OPT_STRING) {
122 str = av_strdup(arg);
123 *po->u.str_arg = str;
124 } else if (po->flags & OPT_BOOL) {
126 } else if (po->flags & OPT_INT) {
127 *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX);
128 } else if (po->flags & OPT_INT64) {
129 *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX);
130 } else if (po->flags & OPT_FLOAT) {
131 *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0);
132 } else if (po->flags & OPT_FUNC2) {
133 if(po->u.func2_arg(opt+1, arg)<0)
139 if (parse_arg_function)
140 parse_arg_function(opt);
145 void print_error(const char *filename, int err)
148 case AVERROR_NUMEXPECTED:
149 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
150 "Use '%%d' to specify the image number:\n"
151 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
152 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
155 case AVERROR_INVALIDDATA:
156 fprintf(stderr, "%s: Error while parsing header\n", filename);
159 fprintf(stderr, "%s: Unknown format\n", filename);
162 fprintf(stderr, "%s: I/O error occured\n"
163 "Usually that means that input file is truncated and/or corrupted.\n",
166 case AVERROR(ENOMEM):
167 fprintf(stderr, "%s: memory allocation error occured\n", filename);
169 case AVERROR(ENOENT):
170 fprintf(stderr, "%s: no such file or directory\n", filename);
173 fprintf(stderr, "%s: Error while opening file\n", filename);
178 void show_banner(const char *program_name, int program_birth_year)
180 fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
181 program_name, program_birth_year);
182 fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n");
183 fprintf(stderr, " libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
184 fprintf(stderr, " libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
185 fprintf(stderr, " libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
186 fprintf(stderr, " libavdevice version: " AV_STRINGIFY(LIBAVDEVICE_VERSION) "\n");
188 fprintf(stderr, " libavfilter version: " AV_STRINGIFY(LIBAVFILTER_VERSION) "\n");
190 fprintf(stderr, " built on " __DATE__ " " __TIME__);
192 fprintf(stderr, ", gcc: " __VERSION__ "\n");
194 fprintf(stderr, ", using a non-gcc compiler\n");
198 void show_version(const char *program_name) {
199 /* TODO: add function interface to avutil and avformat avdevice*/
200 printf("%s " FFMPEG_VERSION "\n", program_name);
201 printf("libavutil %d\n"
205 LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD, LIBAVDEVICE_BUILD);
208 void show_license(void)
210 #ifdef CONFIG_NONFREE
212 "This version of FFmpeg has nonfree parts compiled in.\n"
213 "Therefore it is not legally redistributable.\n"
217 "FFmpeg is free software; you can redistribute it and/or modify\n"
218 "it under the terms of the GNU General Public License as published by\n"
219 "the Free Software Foundation; either version 2 of the License, or\n"
220 "(at your option) any later version.\n"
222 "FFmpeg is distributed in the hope that it will be useful,\n"
223 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
224 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
225 "GNU General Public License for more details.\n"
227 "You should have received a copy of the GNU General Public License\n"
228 "along with FFmpeg; if not, write to the Free Software\n"
229 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
233 "FFmpeg is free software; you can redistribute it and/or\n"
234 "modify it under the terms of the GNU Lesser General Public\n"
235 "License as published by the Free Software Foundation; either\n"
236 "version 2.1 of the License, or (at your option) any later version.\n"
238 "FFmpeg is distributed in the hope that it will be useful,\n"
239 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
240 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
241 "Lesser General Public License for more details.\n"
243 "You should have received a copy of the GNU Lesser General Public\n"
244 "License along with FFmpeg; if not, write to the Free Software\n"
245 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"