[FFmpeg-devel] [PATCH 1/2] avfilter/vf_codecview: fix heap buffer overflow

[FFmpeg-devel] [PATCH 1/2] avfilter/vf_codecview: fix heap buffer overflow

[Zhao Zhili]

From: Zhao Zhili <zhilizhao@tencent.com>

And improve the performance by a little bit.
---
 libavfilter/vf_codecview.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/libavfilter/vf_codecview.c b/libavfilter/vf_codecview.c
index 55d9c8c04f..f65ccbda70 100644
--- a/libavfilter/vf_codecview.c
+++ b/libavfilter/vf_codecview.c
@@ -216,9 +216,6 @@ static void draw_block_rectangle(uint8_t *buf, int sx, int sy, int w, int h, ptr
         buf[sx + w - 1] = color;
         buf += stride;
     }
-
-    for (int x = sx; x < sx + w; x++)
-        buf[x] = color;
 }
 
 static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
-- 
2.25.1

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