Commit | Line | Data |
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01310af2 FB |
1 | /* |
2 | * Various utilities for command line tools | |
3 | * Copyright (c) 2000-2003 Fabrice Bellard | |
4 | * | |
b78e7197 DB |
5 | * This file is part of FFmpeg. |
6 | * | |
7 | * FFmpeg is free software; you can redistribute it and/or | |
01310af2 FB |
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, |
01310af2 FB |
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 | |
0f4e8165 RB |
22 | #include <string.h> |
23 | #include <stdlib.h> | |
24 | #include <errno.h> | |
25 | ||
01310af2 | 26 | #include "avformat.h" |
01310af2 | 27 | #include "cmdutils.h" |
f7d78f36 | 28 | #include "avstring.h" |
01310af2 | 29 | |
c367d067 MN |
30 | #undef exit |
31 | ||
02d504a7 | 32 | void show_help_options(const OptionDef *options, const char *msg, int mask, int value) |
01310af2 FB |
33 | { |
34 | const OptionDef *po; | |
02d504a7 | 35 | int first; |
01310af2 | 36 | |
02d504a7 FB |
37 | first = 1; |
38 | for(po = options; po->name != NULL; po++) { | |
39 | char buf[64]; | |
40 | if ((po->flags & mask) == value) { | |
41 | if (first) { | |
42 | printf("%s", msg); | |
43 | first = 0; | |
44 | } | |
f7d78f36 | 45 | av_strlcpy(buf, po->name, sizeof(buf)); |
02d504a7 | 46 | if (po->flags & HAS_ARG) { |
f7d78f36 MR |
47 | av_strlcat(buf, " ", sizeof(buf)); |
48 | av_strlcat(buf, po->argname, sizeof(buf)); | |
01310af2 | 49 | } |
02d504a7 | 50 | printf("-%-17s %s\n", buf, po->help); |
01310af2 FB |
51 | } |
52 | } | |
53 | } | |
54 | ||
fccfc475 | 55 | static const OptionDef* find_option(const OptionDef *po, const char *name){ |
8bbf6db9 MN |
56 | while (po->name != NULL) { |
57 | if (!strcmp(name, po->name)) | |
58 | break; | |
59 | po++; | |
60 | } | |
61 | return po; | |
62 | } | |
63 | ||
60a9966e SS |
64 | void parse_options(int argc, char **argv, const OptionDef *options, |
65 | void (* parse_arg_function)(const char*)) | |
01310af2 FB |
66 | { |
67 | const char *opt, *arg; | |
b0d7bc1e | 68 | int optindex, handleoptions=1; |
01310af2 FB |
69 | const OptionDef *po; |
70 | ||
71 | /* parse options */ | |
72 | optindex = 1; | |
73 | while (optindex < argc) { | |
74 | opt = argv[optindex++]; | |
115329f1 | 75 | |
84bf226b TL |
76 | if (handleoptions && opt[0] == '-' && opt[1] != '\0') { |
77 | if (opt[1] == '-' && opt[2] == '\0') { | |
78 | handleoptions = 0; | |
79 | continue; | |
80 | } | |
8bbf6db9 MN |
81 | po= find_option(options, opt + 1); |
82 | if (!po->name) | |
83 | po= find_option(options, "default"); | |
01310af2 | 84 | if (!po->name) { |
8bbf6db9 | 85 | unknown_opt: |
01310af2 FB |
86 | fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); |
87 | exit(1); | |
88 | } | |
89 | arg = NULL; | |
90 | if (po->flags & HAS_ARG) { | |
91 | arg = argv[optindex++]; | |
92 | if (!arg) { | |
93 | fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt); | |
94 | exit(1); | |
95 | } | |
96 | } | |
97 | if (po->flags & OPT_STRING) { | |
98 | char *str; | |
02d504a7 | 99 | str = av_strdup(arg); |
01310af2 FB |
100 | *po->u.str_arg = str; |
101 | } else if (po->flags & OPT_BOOL) { | |
102 | *po->u.int_arg = 1; | |
26d4f26b MN |
103 | } else if (po->flags & OPT_INT) { |
104 | *po->u.int_arg = atoi(arg); | |
ffdf9a1f | 105 | } else if (po->flags & OPT_INT64) { |
946d3b12 | 106 | *po->u.int64_arg = strtoll(arg, (char **)NULL, 10); |
1f631450 MN |
107 | } else if (po->flags & OPT_FLOAT) { |
108 | *po->u.float_arg = atof(arg); | |
8bbf6db9 MN |
109 | } else if (po->flags & OPT_FUNC2) { |
110 | if(po->u.func2_arg(opt+1, arg)<0) | |
111 | goto unknown_opt; | |
01310af2 | 112 | } else { |
bb270c08 | 113 | po->u.func_arg(arg); |
01310af2 FB |
114 | } |
115 | } else { | |
60a9966e SS |
116 | if (parse_arg_function) |
117 | parse_arg_function(opt); | |
01310af2 FB |
118 | } |
119 | } | |
120 | } | |
121 | ||
122 | void print_error(const char *filename, int err) | |
123 | { | |
124 | switch(err) { | |
125 | case AVERROR_NUMEXPECTED: | |
126 | fprintf(stderr, "%s: Incorrect image filename syntax.\n" | |
127 | "Use '%%d' to specify the image number:\n" | |
128 | " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n" | |
115329f1 | 129 | " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n", |
01310af2 FB |
130 | filename); |
131 | break; | |
132 | case AVERROR_INVALIDDATA: | |
133 | fprintf(stderr, "%s: Error while parsing header\n", filename); | |
134 | break; | |
135 | case AVERROR_NOFMT: | |
136 | fprintf(stderr, "%s: Unknown format\n", filename); | |
137 | break; | |
6f3e0b21 | 138 | case AVERROR(EIO): |
45ce5ddb | 139 | fprintf(stderr, "%s: I/O error occured\n" |
bb270c08 DB |
140 | "Usually that means that input file is truncated and/or corrupted.\n", |
141 | filename); | |
45ce5ddb | 142 | break; |
769e10f0 | 143 | case AVERROR(ENOMEM): |
45ce5ddb KS |
144 | fprintf(stderr, "%s: memory allocation error occured\n", filename); |
145 | break; | |
24fddf48 | 146 | case AVERROR(ENOENT): |
0ba0c8de BF |
147 | fprintf(stderr, "%s: no such file or directory\n", filename); |
148 | break; | |
01310af2 FB |
149 | default: |
150 | fprintf(stderr, "%s: Error while opening file\n", filename); | |
151 | break; | |
152 | } | |
153 | } | |
f35917b2 SS |
154 | |
155 | void show_license(void) | |
156 | { | |
157 | #ifdef CONFIG_GPL | |
158 | printf( | |
159 | "FFmpeg is free software; you can redistribute it and/or modify\n" | |
160 | "it under the terms of the GNU General Public License as published by\n" | |
161 | "the Free Software Foundation; either version 2 of the License, or\n" | |
162 | "(at your option) any later version.\n" | |
163 | "\n" | |
164 | "FFmpeg is distributed in the hope that it will be useful,\n" | |
165 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
166 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" | |
167 | "GNU General Public License for more details.\n" | |
168 | "\n" | |
169 | "You should have received a copy of the GNU General Public License\n" | |
170 | "along with FFmpeg; if not, write to the Free Software\n" | |
171 | "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
172 | ); | |
173 | #else | |
174 | printf( | |
175 | "FFmpeg is free software; you can redistribute it and/or\n" | |
176 | "modify it under the terms of the GNU Lesser General Public\n" | |
177 | "License as published by the Free Software Foundation; either\n" | |
178 | "version 2.1 of the License, or (at your option) any later version.\n" | |
179 | "\n" | |
180 | "FFmpeg is distributed in the hope that it will be useful,\n" | |
181 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" | |
182 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" | |
183 | "Lesser General Public License for more details.\n" | |
184 | "\n" | |
185 | "You should have received a copy of the GNU Lesser General Public\n" | |
186 | "License along with FFmpeg; if not, write to the Free Software\n" | |
187 | "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" | |
188 | ); | |
189 | #endif | |
190 | } |