avfilter/drawutils: honor shift for color component description

2625b955 · Timo Rothenpieler · d3a23b67 · 2625b955
Commit 2625b955 authored Aug 31, 2016 by Timo Rothenpieler
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drawutils.c libavfilter/drawutils.c +2 -1

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--- a/libavfilter/drawutils.c
+++ b/libavfilter/drawutils.c
@@ -253,7 +253,8 @@ void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4
 #define EXPAND(compn) \
        if (desc->comp[compn].depth > 8) \
            color->comp[desc->comp[compn].plane].u16[desc->comp[compn].offset] = \
-            color->comp[desc->comp[compn].plane].u8[desc->comp[compn].offset] << (draw->desc->comp[compn].depth - 8)
+            color->comp[desc->comp[compn].plane].u8[desc->comp[compn].offset] << \
+                (draw->desc->comp[compn].depth + draw->desc->comp[compn].shift - 8)
        EXPAND(3);
        EXPAND(2);
        EXPAND(1);