Statistics
| Branch: | Revision:

ffmpeg / cmdutils.c @ 69c12fbb

History | View | Annotate | Download (7.49 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
#include "config.h"
31

    
32
#undef exit
33

    
34
void show_help_options(const OptionDef *options, const char *msg, int mask, int value)
35
{
36
    const OptionDef *po;
37
    int first;
38

    
39
    first = 1;
40
    for(po = options; po->name != NULL; po++) {
41
        char buf[64];
42
        if ((po->flags & mask) == value) {
43
            if (first) {
44
                printf("%s", msg);
45
                first = 0;
46
            }
47
            av_strlcpy(buf, po->name, sizeof(buf));
48
            if (po->flags & HAS_ARG) {
49
                av_strlcat(buf, " ", sizeof(buf));
50
                av_strlcat(buf, po->argname, sizeof(buf));
51
            }
52
            printf("-%-17s  %s\n", buf, po->help);
53
        }
54
    }
55
}
56

    
57
static const OptionDef* find_option(const OptionDef *po, const char *name){
58
    while (po->name != NULL) {
59
        if (!strcmp(name, po->name))
60
            break;
61
        po++;
62
    }
63
    return po;
64
}
65

    
66
void parse_options(int argc, char **argv, const OptionDef *options,
67
                   void (* parse_arg_function)(const char*))
68
{
69
    const char *opt, *arg;
70
    int optindex, handleoptions=1;
71
    const OptionDef *po;
72

    
73
    /* parse options */
74
    optindex = 1;
75
    while (optindex < argc) {
76
        opt = argv[optindex++];
77

    
78
        if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
79
          if (opt[1] == '-' && opt[2] == '\0') {
80
            handleoptions = 0;
81
            continue;
82
          }
83
            po= find_option(options, opt + 1);
84
            if (!po->name)
85
                po= find_option(options, "default");
86
            if (!po->name) {
87
unknown_opt:
88
                fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt);
89
                exit(1);
90
            }
91
            arg = NULL;
92
            if (po->flags & HAS_ARG) {
93
                arg = argv[optindex++];
94
                if (!arg) {
95
                    fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt);
96
                    exit(1);
97
                }
98
            }
99
            if (po->flags & OPT_STRING) {
100
                char *str;
101
                str = av_strdup(arg);
102
                *po->u.str_arg = str;
103
            } else if (po->flags & OPT_BOOL) {
104
                *po->u.int_arg = 1;
105
            } else if (po->flags & OPT_INT) {
106
                *po->u.int_arg = atoi(arg);
107
            } else if (po->flags & OPT_INT64) {
108
                *po->u.int64_arg = strtoll(arg, (char **)NULL, 10);
109
            } else if (po->flags & OPT_FLOAT) {
110
                *po->u.float_arg = atof(arg);
111
            } else if (po->flags & OPT_FUNC2) {
112
                if(po->u.func2_arg(opt+1, arg)<0)
113
                    goto unknown_opt;
114
            } else {
115
                po->u.func_arg(arg);
116
            }
117
        } else {
118
            if (parse_arg_function)
119
                parse_arg_function(opt);
120
        }
121
    }
122
}
123

    
124
void print_error(const char *filename, int err)
125
{
126
    switch(err) {
127
    case AVERROR_NUMEXPECTED:
128
        fprintf(stderr, "%s: Incorrect image filename syntax.\n"
129
                "Use '%%d' to specify the image number:\n"
130
                "  for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n"
131
                "  for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n",
132
                filename);
133
        break;
134
    case AVERROR_INVALIDDATA:
135
        fprintf(stderr, "%s: Error while parsing header\n", filename);
136
        break;
137
    case AVERROR_NOFMT:
138
        fprintf(stderr, "%s: Unknown format\n", filename);
139
        break;
140
    case AVERROR(EIO):
141
        fprintf(stderr, "%s: I/O error occured\n"
142
                "Usually that means that input file is truncated and/or corrupted.\n",
143
                filename);
144
        break;
145
    case AVERROR(ENOMEM):
146
        fprintf(stderr, "%s: memory allocation error occured\n", filename);
147
        break;
148
    case AVERROR(ENOENT):
149
        fprintf(stderr, "%s: no such file or directory\n", filename);
150
        break;
151
    default:
152
        fprintf(stderr, "%s: Error while opening file\n", filename);
153
        break;
154
    }
155
}
156

    
157
void show_banner(const char *program_name, int program_birth_year)
158
{
159
    fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-2008 Fabrice Bellard, et al.\n",
160
            program_name, program_birth_year);
161
    fprintf(stderr, "  configuration: " FFMPEG_CONFIGURATION "\n");
162
    fprintf(stderr, "  libavutil version: " AV_STRINGIFY(LIBAVUTIL_VERSION) "\n");
163
    fprintf(stderr, "  libavcodec version: " AV_STRINGIFY(LIBAVCODEC_VERSION) "\n");
164
    fprintf(stderr, "  libavformat version: " AV_STRINGIFY(LIBAVFORMAT_VERSION) "\n");
165
    fprintf(stderr, "  built on " __DATE__ " " __TIME__);
166
#ifdef __GNUC__
167
    fprintf(stderr, ", gcc: " __VERSION__ "\n");
168
#else
169
    fprintf(stderr, ", using a non-gcc compiler\n");
170
#endif
171
}
172

    
173
void show_version(const char *program_name) {
174
     /* TODO: add function interface to avutil and avformat */
175
    printf("%s " FFMPEG_VERSION "\n", program_name);
176
    printf("libavutil   %d\n"
177
           "libavcodec  %d\n"
178
           "libavformat %d\n",
179
           LIBAVUTIL_BUILD, avcodec_build(), LIBAVFORMAT_BUILD);
180
}
181

    
182
void show_license(void)
183
{
184
#ifdef CONFIG_GPL
185
    printf(
186
    "FFmpeg is free software; you can redistribute it and/or modify\n"
187
    "it under the terms of the GNU General Public License as published by\n"
188
    "the Free Software Foundation; either version 2 of the License, or\n"
189
    "(at your option) any later version.\n"
190
    "\n"
191
    "FFmpeg is distributed in the hope that it will be useful,\n"
192
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
193
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
194
    "GNU General Public License for more details.\n"
195
    "\n"
196
    "You should have received a copy of the GNU General Public License\n"
197
    "along with FFmpeg; if not, write to the Free Software\n"
198
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
199
    );
200
#else
201
    printf(
202
    "FFmpeg is free software; you can redistribute it and/or\n"
203
    "modify it under the terms of the GNU Lesser General Public\n"
204
    "License as published by the Free Software Foundation; either\n"
205
    "version 2.1 of the License, or (at your option) any later version.\n"
206
    "\n"
207
    "FFmpeg is distributed in the hope that it will be useful,\n"
208
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
209
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
210
    "Lesser General Public License for more details.\n"
211
    "\n"
212
    "You should have received a copy of the GNU Lesser General Public\n"
213
    "License along with FFmpeg; if not, write to the Free Software\n"
214
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
215
    );
216
#endif
217
}