Remove unused file
[libav.git] / cmdutils.c
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1/*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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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,
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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
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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
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30#undef exit
31
02d504a7 32void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
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33{
34 const OptionDef *po;
02d504a7 35 int first;
01310af2 36
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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) {
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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);
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51 }
52 }
53}
54
fccfc475 55static const OptionDef* find_option(const OptionDef *po, const char *name){
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56 while (po->name != NULL) {
57 if (!strcmp(name, po->name))
58 break;
59 po++;
60 }
61 return po;
62}
63
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64void parse_options(int argc, char **argv, const OptionDef *options)
65{
66 const char *opt, *arg;
b0d7bc1e 67 int optindex, handleoptions=1;
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68 const OptionDef *po;
69
70 /* parse options */
71 optindex = 1;
72 while (optindex < argc) {
73 opt = argv[optindex++];
115329f1 74
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75 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
76 if (opt[1] == '-' && opt[2] == '\0') {
77 handleoptions = 0;
78 continue;
79 }
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80 po= find_option(options, opt + 1);
81 if (!po->name)
82 po= find_option(options, "default");
01310af2 83 if (!po->name) {
8bbf6db9 84unknown_opt:
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85 fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
86 exit(1);
87 }
88 arg = NULL;
89 if (po->flags & HAS_ARG) {
90 arg = argv[optindex++];
91 if (!arg) {
92 fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
93 exit(1);
94 }
95 }
96 if (po->flags & OPT_STRING) {
97 char *str;
02d504a7 98 str = av_strdup(arg);
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99 *po->u.str_arg = str;
100 } else if (po->flags & OPT_BOOL) {
101 *po->u.int_arg = 1;
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102 } else if (po->flags & OPT_INT) {
103 *po->u.int_arg = atoi(arg);
ffdf9a1f 104 } else if (po->flags & OPT_INT64) {
946d3b12 105 *po->u.int64_arg = strtoll(arg, (char **)NULL, 10);
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106 } else if (po->flags & OPT_FLOAT) {
107 *po->u.float_arg = atof(arg);
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108 } else if (po->flags & OPT_FUNC2) {
109 if(po->u.func2_arg(opt+1, arg)<0)
110 goto unknown_opt;
01310af2 111 } else {
bb270c08 112 po->u.func_arg(arg);
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113 }
114 } else {
115 parse_arg_file(opt);
116 }
117 }
118}
119
120void print_error(const char *filename, int err)
121{
122 switch(err) {
123 case AVERROR_NUMEXPECTED:
124 fprintf(stderr, "%s: Incorrect image filename syntax.\n"
125 "Use '%%d' to specify the image number:\n"
126 " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
115329f1 127 " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
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128 filename);
129 break;
130 case AVERROR_INVALIDDATA:
131 fprintf(stderr, "%s: Error while parsing header\n", filename);
132 break;
133 case AVERROR_NOFMT:
134 fprintf(stderr, "%s: Unknown format\n", filename);
135 break;
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136 case AVERROR_IO:
137 fprintf(stderr, "%s: I/O error occured\n"
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138 "Usually that means that input file is truncated and/or corrupted.\n",
139 filename);
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140 break;
141 case AVERROR_NOMEM:
142 fprintf(stderr, "%s: memory allocation error occured\n", filename);
143 break;
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144 case AVERROR_NOENT:
145 fprintf(stderr, "%s: no such file or directory\n", filename);
146 break;
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147 default:
148 fprintf(stderr, "%s: Error while opening file\n", filename);
149 break;
150 }
151}