2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef AVUTIL_PARSEUTILS_H
20 #define AVUTIL_PARSEUTILS_H
26 * misc parsing utilities
30 * Parse str and put in width_ptr and height_ptr the detected values.
32 * @param[in,out] width_ptr pointer to the variable which will contain the detected
34 * @param[in,out] height_ptr pointer to the variable which will contain the detected
36 * @param[in] str the string to parse: it has to be a string in the format
37 * width x height or a valid video size abbreviation.
38 * @return >= 0 on success, a negative error code otherwise
40 int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str);
43 * Parse str and store the detected values in *rate.
45 * @param[in,out] rate pointer to the AVRational which will contain the detected
47 * @param[in] str the string to parse: it has to be a string in the format
48 * rate_num / rate_den, a float number or a valid video rate abbreviation
49 * @return >= 0 on success, a negative error code otherwise
51 int av_parse_video_rate(AVRational *rate, const char *str);
54 * Put the RGBA values that correspond to color_string in rgba_color.
56 * @param color_string a string specifying a color. It can be the name of
57 * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence,
58 * possibly followed by "@" and a string representing the alpha
60 * The alpha component may be a string composed by "0x" followed by an
61 * hexadecimal number or a decimal number between 0.0 and 1.0, which
62 * represents the opacity value (0x00/0.0 means completely transparent,
63 * 0xff/1.0 completely opaque).
64 * If the alpha component is not specified then 0xff is assumed.
65 * The string "random" will result in a random color.
66 * @param slen length of the initial part of color_string containing the
67 * color. It can be set to -1 if color_string is a null terminated string
68 * containing nothing else than the color.
69 * @return >= 0 in case of success, a negative value in case of
70 * failure (for example if color_string cannot be parsed).
72 int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
76 * Parses timestr and returns in *time a corresponding number of
79 * @param timeval puts here the number of microseconds corresponding
80 * to the string in timestr. If the string represents a duration, it
81 * is the number of microseconds contained in the time interval. If
82 * the string is a date, is the number of microseconds since 1st of
83 * January, 1970 up to the time of the parsed date. If timestr cannot
84 * be successfully parsed, set *time to INT64_MIN.
86 * @param datestr a string representing a date or a duration.
87 * - If a date the syntax is:
89 * [{YYYY-MM-DD|YYYYMMDD}[T|t| ]]{{HH[:MM[:SS[.m...]]]}|{HH[MM[SS[.m...]]]}}[Z]
92 * If the value is "now" it takes the current time.
93 * Time is local time unless Z is appended, in which case it is
95 * If the year-month-day part is not specified it takes the current
97 * - If a duration the syntax is:
99 * [-]HH[:MM[:SS[.m...]]]
102 * @param duration flag which tells how to interpret timestr, if not
103 * zero timestr is interpreted as a duration, otherwise as a date
104 * @return 0 in case of success, a negative value corresponding to an
105 * AVERROR code otherwise
107 int av_parse_time(int64_t *timeval, const char *timestr, int duration);
110 * Attempt to find a specific tag in a URL.
112 * syntax: '?tag1=val1&tag2=val2...'. Little URL decoding is done.
115 int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
117 #endif /* AVUTIL_PARSEUTILS_H */