Move VP3 loop filter to DSPContext
[libav.git] / cmdutils.h
CommitLineData
f5a90186
DB
1/*
2 * Various utilities for command line tools
3 * copyright (c) 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
5b21bdab
DB
22#ifndef FFMPEG_CMDUTILS_H
23#define FFMPEG_CMDUTILS_H
01310af2 24
f0a838e5
DB
25#include <inttypes.h>
26
60b5a745 27/**
64555bd9
MN
28 * program name, defined by the program for show_version().
29 */
30extern const char program_name[];
31
32/**
ea9c581f
SS
33 * program birth year, defined by the program for show_banner()
34 */
35extern const int program_birth_year;
36
85663ef3
MN
37extern const char **opt_names;
38extern AVCodecContext *avctx_opts[CODEC_TYPE_NB];
39extern AVFormatContext *avformat_opts;
40extern struct SwsContext *sws_opts;
41
42/**
43 * Fallback for options that are not explixitly handled, these will be
44 * parsed through AVOptions.
45 */
46int opt_default(const char *opt, const char *arg);
47
ea9c581f 48/**
15067504
DB
49 * Parses a string and returns its corresponding value as a double.
50 * Exits from the application if the string cannot be correctly
51 * parsed or the corresponding value is invalid.
60b5a745
SS
52 *
53 * @param context the context of the value to be set (e.g. the
54 * corresponding commandline option name)
55 * @param numstr the string to be parsed
56 * @param type the type (OPT_INT64 or OPT_FLOAT) as which the
57 * string should be parsed
15067504
DB
58 * @param min the minimum valid accepted value
59 * @param max the maximum valid accepted value
60b5a745
SS
60 */
61double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max);
62
7542157d
SS
63/**
64 * Parses a string specifying a time and returns its corresponding
65 * value as a number of microseconds. Exits from the application if
66 * the string cannot be correctly parsed.
67 *
68 * @param context the context of the value to be set (e.g. the
69 * corresponding commandline option name)
70 * @param timestr the string to be parsed
71 * @param is_duration a flag which tells how to interpret \p timestr, if
72 * not zero \p timestr is interpreted as a duration, otherwise as a
73 * date
74 *
748061de 75 * @see parse_date()
7542157d
SS
76 */
77int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration);
78
01310af2
FB
79typedef struct {
80 const char *name;
81 int flags;
82#define HAS_ARG 0x0001
83#define OPT_BOOL 0x0002
84#define OPT_EXPERT 0x0004
85#define OPT_STRING 0x0008
02d504a7
FB
86#define OPT_VIDEO 0x0010
87#define OPT_AUDIO 0x0020
88#define OPT_GRAB 0x0040
26d4f26b 89#define OPT_INT 0x0080
394c4d77 90#define OPT_FLOAT 0x0100
ae27975d 91#define OPT_SUBTITLE 0x0200
8bbf6db9 92#define OPT_FUNC2 0x0400
ffdf9a1f 93#define OPT_INT64 0x0800
a0b3bcd9 94#define OPT_EXIT 0x1000
ae27975d 95 union {
8bbf6db9 96 void (*func_arg)(const char *); //FIXME passing error code as int return would be nicer then exit() in the func
01310af2
FB
97 int *int_arg;
98 char **str_arg;
1f631450 99 float *float_arg;
8bbf6db9 100 int (*func2_arg)(const char *, const char *);
ffdf9a1f 101 int64_t *int64_arg;
01310af2
FB
102 } u;
103 const char *help;
104 const char *argname;
105} OptionDef;
106
02d504a7 107void show_help_options(const OptionDef *options, const char *msg, int mask, int value);
60a9966e
SS
108
109/**
110 * Parses the command line arguments.
111 * @param options Array with the definitions required to interpret every
112 * option of the form: -<option_name> [<argument>]
113 * @param parse_arg_function Name of the function called to process every
114 * argument without a leading option name flag. NULL if such arguments do
115 * not have to be processed.
116 */
117void parse_options(int argc, char **argv, const OptionDef *options,
118 void (* parse_arg_function)(const char*));
119
85663ef3
MN
120void set_context_opts(void *ctx, void *opts_ctx, int flags);
121
01310af2
FB
122void print_error(const char *filename, int err);
123
f35917b2 124/**
15067504
DB
125 * Prints the program banner to stderr. The banner contents depend on the
126 * current version of the repository and of the libav* libraries used by
127 * the program.
86074ed1 128 */
ea9c581f 129void show_banner(void);
86074ed1
SS
130
131/**
15067504 132 * Prints the version of the program to stdout. The version message
86074ed1
SS
133 * depends on the current versions of the repository and of the libav*
134 * libraries.
86074ed1 135 */
64555bd9 136void show_version(void);
86074ed1
SS
137
138/**
15067504
DB
139 * Prints the license of the program to stdout. The license depends on
140 * the license of the libraries compiled into the program.
f35917b2
SS
141 */
142void show_license(void);
143
ba9880c1
SS
144/**
145 * Prints a listing containing all the formats supported by the
146 * program.
147 */
148void show_formats(void);
149
5b21bdab 150#endif /* FFMPEG_CMDUTILS_H */