From b4cc7d67f564417af5da99c894a305d1fdd75d51 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 4 May 2015 22:33:17 +0200
Subject: [PATCH] avfilter/vf_cover_rect: clip rectangle if it is partly
outside the input
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavfilter/vf_cover_rect.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/libavfilter/vf_cover_rect.c b/libavfilter/vf_cover_rect.c
index 7e1a9f449dd..d12807ad53e 100644
--- a/libavfilter/vf_cover_rect.c
+++ b/libavfilter/vf_cover_rect.c
@@ -163,6 +163,17 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
return ff_filter_frame(ctx->outputs[0], in);
}
+ if (x < 0) {
+ w += x;
+ x = 0;
+ }
+ if (y < 0) {
+ h += y;
+ y = 0;
+ }
+ w = FFMIN(w, in->width - x);
+ h = FFMIN(h, in->height - y);
+
if (w > in->width || h > in->height || w <= 0 || h <= 0)
return AVERROR(EINVAL);
--
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