From 94682555c6f8955319165361d77f7eb84b5f502f Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Mon, 23 Dec 2019 19:56:05 +0100 Subject: [PATCH] avfilter/vf_readeia608: check if gaps between clock bits are big enough Should help finding less false positives. --- libavfilter/vf_readeia608.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavfilter/vf_readeia608.c b/libavfilter/vf_readeia608.c index c36bcf5af9..845b63663c 100644 --- a/libavfilter/vf_readeia608.c +++ b/libavfilter/vf_readeia608.c @@ -325,7 +325,8 @@ static void extract_line(AVFilterContext *ctx, AVFrame *in, int w, int nb_line) bit_size /= 19.f; for (i = 1; i < 14; i++) { - if (s->code[i].size > bit_size * 1.5f) { + if (s->code[i].size > bit_size * 1.5f || + s->code[i].size < bit_size * 0.2f) { return; } }