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fade: make draw_slice() chroma check against planes 1 and 2
draw_slice() checks that planes 0 and 1 of AVFilterBufferRef's data are not NULL before manipulating planes 1 and 2. This patch makes the check against planes 1 and 2. More senseful and possibly more robust.
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@ -114,7 +114,7 @@ static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
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}
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}
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if (outpic->data[0] && outpic->data[1]) {
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if (outpic->data[1] && outpic->data[2]) {
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/* chroma planes */
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for (plane = 1; plane < 3; plane++) {
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for (i = 0; i < h; i++) {
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