From d9b68a8176d202853b64924e3e1e1b97b9698083 Mon Sep 17 00:00:00 2001
From: Martin Vignali <martin.vignali@gmail.com>
Date: Sat, 22 Oct 2016 21:57:07 +0200
Subject: [PATCH] doc/filters : add metadata information for blackframe
---
doc/filters.texi | 4 ++++
1 file changed, 4 insertions(+)
@@ -4552,6 +4552,10 @@ The threshold below which a pixel value is considered black; it defaults to
@end table
+This filter export frame metadata @code{lavfi.blackframe.pblack}.
+The value represent the percentage of pixels in the picture that
+are below the threshold value.
+
@section blend, tblend
Blend two video frames into each other.
--
1.9.3 (Apple Git-50)