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author | Reinhard Tartler <siretart@tauware.de> | 2011-02-07 14:37:08 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-02-16 23:00:30 +0100 |
commit | 7ffe76e540297ad4df2896064f83cb1adbd81fd9 (patch) | |
tree | 4510accdfd282fafb4f8caae1055c76ebf45e4c0 /libavutil/parseutils.h | |
parent | fad8143f5b9689e0e2dafe46500d944cfa58a911 (diff) | |
download | ffmpeg-7ffe76e540297ad4df2896064f83cb1adbd81fd9.tar.gz |
Merge libavcore into libavutil
Done to keep ABI compatible. Otherwise this is just silly
Diffstat (limited to 'libavutil/parseutils.h')
-rw-r--r-- | libavutil/parseutils.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/libavutil/parseutils.h b/libavutil/parseutils.h new file mode 100644 index 0000000000..2c99872289 --- /dev/null +++ b/libavutil/parseutils.h @@ -0,0 +1,75 @@ +/* + * 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 + */ + +#ifndef AVUTIL_PARSEUTILS_H +#define AVUTIL_PARSEUTILS_H + +#include "libavutil/rational.h" + +/** + * @file + * misc parsing utilities + */ + +/** + * Parse str and put in width_ptr and height_ptr the detected values. + * + * @param[in,out] width_ptr pointer to the variable which will contain the detected + * width value + * @param[in,out] height_ptr pointer to the variable which will contain the detected + * height value + * @param[in] str the string to parse: it has to be a string in the format + * width x height or a valid video size abbreviation. + * @return >= 0 on success, a negative error code otherwise + */ +int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str); + +/** + * Parse str and store the detected values in *rate. + * + * @param[in,out] rate pointer to the AVRational which will contain the detected + * frame rate + * @param[in] str the string to parse: it has to be a string in the format + * rate_num / rate_den, a float number or a valid video rate abbreviation + * @return >= 0 on success, a negative error code otherwise + */ +int av_parse_video_rate(AVRational *rate, const char *str); + +/** + * 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 [0x|#]RRGGBB[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 decimal number between 0.0 and 1.0, which + * represents the opacity value (0x00/0.0 means completely transparent, + * 0xff/1.0 completely opaque). + * If the alpha component is not specified then 0xff is assumed. + * The string "random" will result in a random color. + * @param slen length of the initial part of color_string containing the + * color. It can be set to -1 if color_string is a null terminated string + * containing nothing else than the 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, int slen, + void *log_ctx); + +#endif /* AVUTIL_PARSEUTILS_H */ |