mirror of https://git.ffmpeg.org/ffmpeg.git
69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
/*
|
|
* copyright (c) 2009 Stefano Sabatini
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* parsing utils
|
|
*/
|
|
|
|
#ifndef AVFILTER_PARSEUTILS_H
|
|
#define AVFILTER_PARSEUTILS_H
|
|
|
|
#include "libavutil/opt.h"
|
|
|
|
/**
|
|
* Put the RGBA values that correspond to color_string in rgba_color.
|
|
*
|
|
* @param color_string a string specifying a color. It can be the name of
|
|
* a color (case insensitive match) or a 0xRRGGBB[AA] sequence,
|
|
* possibly followed by "@" and a string representing the alpha
|
|
* component.
|
|
* The alpha component may be a string composed by "0x" followed by an
|
|
* hexadecimal number or a base-10 number between 0 and 255, or a
|
|
* decimal number between 0.0 and 1.0, which represents the opacity
|
|
* value (0/0x00/0.0 means completely transparent, 255/0xff/1.0
|
|
* completely opaque).
|
|
* If the alpha component is not specified then 255 is assumed.
|
|
* The string "random" will result in a random color.
|
|
* @return >= 0 in case of success, a negative value in case of
|
|
* failure (for example if color_string cannot be parsed).
|
|
*/
|
|
int av_parse_color(uint8_t *rgba_color, const char *color_string, void *log_ctx);
|
|
|
|
/**
|
|
* Parse the key/value pairs list in opts. For each key/value pair
|
|
* found, stores the value in the field in ctx that is named like the
|
|
* key. ctx must be an AVClass context, storing is done using
|
|
* AVOptions.
|
|
*
|
|
* @param key_val_sep a 0-terminated list of characters used to
|
|
* separate key from value
|
|
* @param pairs_sep a 0-terminated list of characters used to separate
|
|
* two pairs from each other
|
|
* @return the number of successfully set key/value pairs, or a negative
|
|
* value corresponding to an AVERROR code in case of error:
|
|
* AVERROR(EINVAL) if opts cannot be parsed,
|
|
* the error code issued by av_set_string3() if a key/value pair
|
|
* cannot be set
|
|
*/
|
|
int av_set_options_string(void *ctx, const char *opts,
|
|
const char *key_val_sep, const char *pairs_sep);
|
|
|
|
#endif /* AVFILTER_PARSEUTILS_H */
|