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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 | */ |
02d504a7 | 21 | #define HAVE_AV_CONFIG_H |
01310af2 | 22 | #include "avformat.h" |
d705e4a6 | 23 | #include "common.h" |
01310af2 FB |
24 | |
25 | #include "cmdutils.h" | |
26 | ||
c367d067 MN |
27 | #undef exit |
28 | ||
02d504a7 | 29 | void show_help_options(const OptionDef *options, const char *msg, int mask, int value) |
01310af2 FB |
30 | { |
31 | const OptionDef *po; | |
02d504a7 | 32 | int first; |
01310af2 | 33 | |
02d504a7 FB |
34 | first = 1; |
35 | for(po = options; po->name != NULL; po++) { | |
36 | char buf[64]; | |
37 | if ((po->flags & mask) == value) { | |
38 | if (first) { | |
39 | printf("%s", msg); | |
40 | first = 0; | |
41 | } | |
0ecca7a4 | 42 | pstrcpy(buf, sizeof(buf), po->name); |
02d504a7 | 43 | if (po->flags & HAS_ARG) { |
0ecca7a4 MN |
44 | pstrcat(buf, sizeof(buf), " "); |
45 | pstrcat(buf, sizeof(buf), po->argname); | |
01310af2 | 46 | } |
02d504a7 | 47 | printf("-%-17s %s\n", buf, po->help); |
01310af2 FB |
48 | } |
49 | } | |
50 | } | |
51 | ||
fccfc475 | 52 | static const OptionDef* find_option(const OptionDef *po, const char *name){ |
8bbf6db9 MN |
53 | while (po->name != NULL) { |
54 | if (!strcmp(name, po->name)) | |
55 | break; | |
56 | po++; | |
57 | } | |
58 | return po; | |
59 | } | |
60 | ||
01310af2 FB |
61 | void parse_options(int argc, char **argv, const OptionDef *options) |
62 | { | |
63 | const char *opt, *arg; | |
b0d7bc1e | 64 | int optindex, handleoptions=1; |
01310af2 FB |
65 | const OptionDef *po; |
66 | ||
67 | /* parse options */ | |
68 | optindex = 1; | |
69 | while (optindex < argc) { | |
70 | opt = argv[optindex++]; | |
115329f1 | 71 | |
84bf226b TL |
72 | if (handleoptions && opt[0] == '-' && opt[1] != '\0') { |
73 | if (opt[1] == '-' && opt[2] == '\0') { | |
74 | handleoptions = 0; | |
75 | continue; | |
76 | } | |
8bbf6db9 MN |
77 | po= find_option(options, opt + 1); |
78 | if (!po->name) | |
79 | po= find_option(options, "default"); | |
01310af2 | 80 | if (!po->name) { |
8bbf6db9 | 81 | unknown_opt: |
01310af2 FB |
82 | fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); |
83 | exit(1); | |
84 | } | |
85 | arg = NULL; | |
86 | if (po->flags & HAS_ARG) { | |
87 | arg = argv[optindex++]; | |
88 | if (!arg) { | |
89 | fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt); | |
90 | exit(1); | |
91 | } | |
92 | } | |
93 | if (po->flags & OPT_STRING) { | |
94 | char *str; | |
02d504a7 | 95 | str = av_strdup(arg); |
01310af2 FB |
96 | *po->u.str_arg = str; |
97 | } else if (po->flags & OPT_BOOL) { | |
98 | *po->u.int_arg = 1; | |
26d4f26b MN |
99 | } else if (po->flags & OPT_INT) { |
100 | *po->u.int_arg = atoi(arg); | |
ffdf9a1f | 101 | } else if (po->flags & OPT_INT64) { |
946d3b12 | 102 | *po->u.int64_arg = strtoll(arg, (char **)NULL, 10); |
1f631450 MN |
103 | } else if (po->flags & OPT_FLOAT) { |
104 | *po->u.float_arg = atof(arg); | |
8bbf6db9 MN |
105 | } else if (po->flags & OPT_FUNC2) { |
106 | if(po->u.func2_arg(opt+1, arg)<0) | |
107 | goto unknown_opt; | |
01310af2 | 108 | } else { |
bb270c08 | 109 | po->u.func_arg(arg); |
01310af2 FB |
110 | } |
111 | } else { | |
112 | parse_arg_file(opt); | |
113 | } | |
114 | } | |
115 | } | |
116 | ||
117 | void print_error(const char *filename, int err) | |
118 | { | |
119 | switch(err) { | |
120 | case AVERROR_NUMEXPECTED: | |
121 | fprintf(stderr, "%s: Incorrect image filename syntax.\n" | |
122 | "Use '%%d' to specify the image number:\n" | |
123 | " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n" | |
115329f1 | 124 | " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n", |
01310af2 FB |
125 | filename); |
126 | break; | |
127 | case AVERROR_INVALIDDATA: | |
128 | fprintf(stderr, "%s: Error while parsing header\n", filename); | |
129 | break; | |
130 | case AVERROR_NOFMT: | |
131 | fprintf(stderr, "%s: Unknown format\n", filename); | |
132 | break; | |
45ce5ddb KS |
133 | case AVERROR_IO: |
134 | fprintf(stderr, "%s: I/O error occured\n" | |
bb270c08 DB |
135 | "Usually that means that input file is truncated and/or corrupted.\n", |
136 | filename); | |
45ce5ddb KS |
137 | break; |
138 | case AVERROR_NOMEM: | |
139 | fprintf(stderr, "%s: memory allocation error occured\n", filename); | |
140 | break; | |
01310af2 FB |
141 | default: |
142 | fprintf(stderr, "%s: Error while opening file\n", filename); | |
143 | break; | |
144 | } | |
145 | } |