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Commit 6213e4ac authored by Erwan Tulou's avatar Erwan Tulou
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blend: extra check to avoid possible crash

parent 7bdcbe8a
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modules/video_filter/blend.cpp
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...@@ -607,6 +607,12 @@ static void Blend(filter_t *filter, ...@@ -607,6 +607,12 @@ static void Blend(filter_t *filter,
{ {
filter_sys_t *sys = filter->p_sys; filter_sys_t *sys = filter->p_sys;
if( x_offset < 0 || y_offset < 0 )
{
msg_Err( filter, "Blend cannot process negative offsets" );
return;
}
int width = __MIN((int)filter->fmt_out.video.i_visible_width - x_offset, int width = __MIN((int)filter->fmt_out.video.i_visible_width - x_offset,
(int)filter->fmt_in.video.i_visible_width); (int)filter->fmt_in.video.i_visible_width);
int height = __MIN((int)filter->fmt_out.video.i_visible_height - y_offset, int height = __MIN((int)filter->fmt_out.video.i_visible_height - y_offset,
......
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