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videoblend: special case 1x1 src dims on increment computation

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Fix crash with 1x1 overlay pixmap

https://bugzilla.gnome.org/show_bug.cgi?id=757290
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2015-11-12 14:01:03 -08:00
parent 0416f121f2
commit e61f5b2138
1 changed files with 2 additions and 2 deletions
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4
gst-libs/gst/video/video-blend.c
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@ -186,12 +186,12 @@ gst_video_blend_scale_linear_RGBA (GstVideoInfo * src, GstBuffer * src_buffer,
gst_video_frame_map (&src_frame, src, src_buffer, GST_MAP_READ); gst_video_frame_map (&src_frame, src, src_buffer, GST_MAP_READ);
gst_video_frame_map (&dest_frame, dest, *dest_buffer, GST_MAP_WRITE); gst_video_frame_map (&dest_frame, dest, *dest_buffer, GST_MAP_WRITE);
if (dest_height == 1) if (dest_height == 1 || src->height == 1)
y_increment = 0; y_increment = 0;
else else
y_increment = ((src->height - 1) << 16) / (dest_height - 1) - 1; y_increment = ((src->height - 1) << 16) / (dest_height - 1) - 1;
if (dest_width == 1) if (dest_width == 1 || src->width == 1)
x_increment = 0; x_increment = 0;
else else
x_increment = ((src->width - 1) << 16) / (dest_width - 1) - 1; x_increment = ((src->width - 1) << 16) / (dest_width - 1) - 1;