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75 lines
2.7 KiB
75 lines
2.7 KiB
/* |
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* copyright (c) 2009 Stefano Sabatini |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* parsing utils |
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*/ |
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#ifndef AVFILTER_PARSEUTILS_H |
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#define AVFILTER_PARSEUTILS_H |
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#include "libavcodec/opt.h" |
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/** |
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* Unescapes the given string until a non escaped terminating char, |
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* and returns the token corresponding to the unescaped string. |
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* |
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* The normal \ and ' escaping is supported. Leading and trailing |
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* whitespaces are removed. |
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* |
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* @param buf the buffer to parse, buf will be updated to point to the |
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* terminating char |
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* @param term a 0-terminated list of terminating chars |
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* @return the malloced unescaped string, which must be av_freed by |
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* the user, NULL in case of allocation failure |
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*/ |
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char *av_get_token(const char **buf, const char *term); |
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/** |
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* Puts the RGBA values that correspond to color_string in rgba_color. |
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* |
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* @param color_string a string specifying a color. It can be the name of |
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* a color (case insensitive match) or a 0xRRGGBB[AA] sequence. |
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* The string "random" will result in a random color. |
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* @return >= 0 in case of success, a negative value in case of |
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* failure (for example if color_string cannot be parsed). |
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*/ |
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int av_parse_color(uint8_t *rgba_color, const char *color_string, void *log_ctx); |
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/** |
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* Parses the key/value pairs list in opts. For each key/value pair |
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* found, stores the value in the field in ctx that is named like the |
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* key. ctx must be an AVClass context, storing is done using |
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* AVOptions. |
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* |
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* @param key_val_sep a 0-terminated list of characters used to |
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* separate key from value |
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* @param pairs_sep a 0-terminated list of characters used to separate |
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* two pairs from each other |
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* @return the number of successfully set key/value pairs, or a negative |
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* value corresponding to an AVERROR code in case of error: |
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* AVERROR(EINVAL) if opts cannot be parsed, |
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* the error code issued by av_set_string3() if a key/value pair |
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* cannot be set |
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*/ |
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int av_set_options_string(void *ctx, const char *opts, |
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const char *key_val_sep, const char *pairs_sep); |
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#endif /* AVFILTER_PARSEUTILS_H */
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