Function av_parse_video_rate

libavutil/parseutils.c:181–202

}

int av_parse_video_rate(AVRational *rate, const char *arg)
{
    int i, ret;
    int n = FF_ARRAY_ELEMS(video_rate_abbrs);

    /* First, we check our abbreviation table */
    for (i = 0; i < n; ++i)
        if (!strcmp(video_rate_abbrs[i].abbr, arg)) {
            *rate = video_rate_abbrs[i].rate;
            return 0;
        }

    /* Then, we try to parse it as fraction */
    if ((ret = av_parse_ratio_quiet(rate, arg, 1001000)) < 0)
        return ret;
    if (!rate->num || !rate->den)
        if ((ret = av_parse_ratio_quiet(rate, arg, INT_MAX)) < 0)
            return ret;
    if (rate->num <= 0 || rate->den <= 0)
        return AVERROR(EINVAL);
    return 0;
}

typedef struct ColorEntry {
    const char *name;            ///< a string representing the name of the color