Statistics
| Branch: | Revision:

ffmpeg / cmdutils.c @ 86074ed1

History | View | Annotate | Download (7.47 KB)

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

    
26
#include "avformat.h"
27
#include "cmdutils.h"
28
#include "avstring.h"
29
#include "version.h"
30

    
31
#undef exit
32

    
33
void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
34
{
35
    const OptionDef *po;
36
    int first;
37

    
38
    first = 1;
39
    for(po = options; po->name != NULL; po++) {
40
        char buf[64];
41
        if ((po->flags & mask) == value) {
42
            if (first) {
43
                printf("%s", msg);
44
                first = 0;
45
            }
46
            av_strlcpy(buf, po->name, sizeof(buf));
47
            if (po->flags & HAS_ARG) {
48
                av_strlcat(buf, " ", sizeof(buf));
49
                av_strlcat(buf, po->argname, sizeof(buf));
50
            }
51
            printf("-%-17s  %s\n", buf, po->help);
52
        }
53
    }
54
}
55

    
56
static const OptionDef* find_option(const OptionDef *po, const char *name){
57
    while (po->name != NULL) {
58
        if (!strcmp(name, po->name))
59
            break;
60
        po++;
61
    }
62
    return po;
63
}
64

    
65
void parse_options(int argc, char **argv, const OptionDef *options,
66
                   void (* parse_arg_function)(const char*))
67
{
68
    const char *opt, *arg;
69
    int optindex, handleoptions=1;
70
    const OptionDef *po;
71

    
72
    /* parse options */
73
    optindex = 1;
74
    while (optindex < argc) {
75
        opt = argv[optindex++];
76

    
77
        if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
78
          if (opt[1] == '-' && opt[2] == '\0') {
79
            handleoptions = 0;
80
            continue;
81
          }
82
            po= find_option(options, opt + 1);
83
            if (!po->name)
84
                po= find_option(options, "default");
85
            if (!po->name) {
86
unknown_opt:
87
                fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
88
                exit(1);
89
            }
90
            arg = NULL;
91
            if (po->flags & HAS_ARG) {
92
                arg = argv[optindex++];
93
                if (!arg) {
94
                    fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
95
                    exit(1);
96
                }
97
            }
98
            if (po->flags & OPT_STRING) {
99
                char *str;
100
                str = av_strdup(arg);
101
                *po->u.str_arg = str;
102
            } else if (po->flags & OPT_BOOL) {
103
                *po->u.int_arg = 1;
104
            } else if (po->flags & OPT_INT) {
105
                *po->u.int_arg = atoi(arg);
106
            } else if (po->flags & OPT_INT64) {
107
                *po->u.int64_arg = strtoll(arg, (char **)NULL, 10);
108
            } else if (po->flags & OPT_FLOAT) {
109
                *po->u.float_arg = atof(arg);
110
            } else if (po->flags & OPT_FUNC2) {
111
                if(po->u.func2_arg(opt+1, arg)<0)
112
                    goto unknown_opt;
113
            } else {
114
                po->u.func_arg(arg);
115
            }
116
        } else {
117
            if (parse_arg_function)
118
                parse_arg_function(opt);
119
        }
120
    }
121
}
122

    
123
void print_error(const char *filename, int err)
124
{
125
    switch(err) {
126
    case AVERROR_NUMEXPECTED:
127
        fprintf(stderr, "%s: Incorrect image filename syntax.\n"
128
                "Use '%%d' to specify the image number:\n"
129
                "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
130
                "  for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
131
                filename);
132
        break;
133
    case AVERROR_INVALIDDATA:
134
        fprintf(stderr, "%s: Error while parsing header\n", filename);
135
        break;
136
    case AVERROR_NOFMT:
137
        fprintf(stderr, "%s: Unknown format\n", filename);
138
        break;
139
    case AVERROR(EIO):
140
        fprintf(stderr, "%s: I/O error occured\n"
141
                "Usually that means that input file is truncated and/or corrupted.\n",
142
                filename);
143
        break;
144
    case AVERROR(ENOMEM):
145
        fprintf(stderr, "%s: memory allocation error occured\n", filename);
146
        break;
147
    case AVERROR(ENOENT):
148
        fprintf(stderr, "%s: no such file or directory\n", filename);
149
        break;
150
    default:
151
        fprintf(stderr, "%s: Error while opening file\n", filename);
152
        break;
153
    }
154
}
155

    
156
void show_banner(const char *program_name, int program_birth_year)
157
{
158
    fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2007 Fabrice Bellard, et al.\n",
159
            program_name, program_birth_year);
160
    fprintf(stderr, "  configuration: " FFMPEG_CONFIGURATION "\n");
161
    fprintf(stderr, "  libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
162
    fprintf(stderr, "  libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
163
    fprintf(stderr, "  libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
164
    fprintf(stderr, "  built on " __DATE__ " " __TIME__);
165
#ifdef __GNUC__
166
    fprintf(stderr, ", gcc: " __VERSION__ "\n");
167
#else
168
    fprintf(stderr, ", using a non-gcc compiler\n");
169
#endif
170
}
171

    
172
void show_version(const char *program_name) {
173
     /* TODO: add function interface to avutil and avformat */
174
    printf("%s " FFMPEG_VERSION "\n", program_name);
175
    printf("libavutil   %d\n"
176
           "libavcodec  %d\n"
177
           "libavformat %d\n",
178
           LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD);
179
}
180

    
181
void show_license(void)
182
{
183
#ifdef CONFIG_GPL
184
    printf(
185
    "FFmpeg is free software; you can redistribute it and/or modify\n"
186
    "it under the terms of the GNU General Public License as published by\n"
187
    "the Free Software Foundation; either version 2 of the License, or\n"
188
    "(at your option) any later version.\n"
189
    "\n"
190
    "FFmpeg is distributed in the hope that it will be useful,\n"
191
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
192
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
193
    "GNU General Public License for more details.\n"
194
    "\n"
195
    "You should have received a copy of the GNU General Public License\n"
196
    "along with FFmpeg; if not, write to the Free Software\n"
197
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
198
    );
199
#else
200
    printf(
201
    "FFmpeg is free software; you can redistribute it and/or\n"
202
    "modify it under the terms of the GNU Lesser General Public\n"
203
    "License as published by the Free Software Foundation; either\n"
204
    "version 2.1 of the License, or (at your option) any later version.\n"
205
    "\n"
206
    "FFmpeg is distributed in the hope that it will be useful,\n"
207
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
208
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
209
    "Lesser General Public License for more details.\n"
210
    "\n"
211
    "You should have received a copy of the GNU Lesser General Public\n"
212
    "License along with FFmpeg; if not, write to the Free Software\n"
213
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
214
    );
215
#endif
216
}