From d40dc64173a140755f36492a0c20fc41b27d66c3 Mon Sep 17 00:00:00 2001 From: Marton Balint Date: Sun, 30 Sep 2018 21:30:10 +0200 Subject: [PATCH] avutil/opt: check for minimum and maximum values when setting AV_OPT_TYPE_DURATION fields Signed-off-by: Marton Balint --- libavutil/opt.c | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/libavutil/opt.c b/libavutil/opt.c index 99282605f5..93d6c26c11 100644 --- a/libavutil/opt.c +++ b/libavutil/opt.c @@ -496,15 +496,22 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags) case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst); case AV_OPT_TYPE_DURATION: - if (!val) { - *(int64_t *)dst = 0; + { + int64_t usecs = 0; + if (val) { + if ((ret = av_parse_time(&usecs, val, 1)) < 0) { + av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val); + return ret; + } + } + if (usecs < o->min || usecs > o->max) { + av_log(obj, AV_LOG_ERROR, "Value %f for parameter '%s' out of range [%g - %g]\n", + usecs / 1000000.0, o->name, o->min / 1000000.0, o->max / 1000000.0); + return AVERROR(ERANGE); + } + *(int64_t *)dst = usecs; return 0; - } else { - if ((ret = av_parse_time(dst, val, 1)) < 0) - av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", val); - return ret; } - break; case AV_OPT_TYPE_COLOR: return set_string_color(obj, o, val, dst); case AV_OPT_TYPE_CHANNEL_LAYOUT: