Left shifts of signed types are UB unless the results fit
into the type. (Furthermore the value to be shifted need to be
nonnegative.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
 libavcodec/texturedspenc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/texturedspenc.c b/libavcodec/texturedspenc.c
index 381be16f75..21e341c613 100644
--- a/libavcodec/texturedspenc.c
+++ b/libavcodec/texturedspenc.c
@@ -181,9 +181,9 @@ static unsigned int match_colors(const uint8_t *block, 
ptrdiff_t stride,
     int x, y, k = 0;
     int c0_point, half_point, c3_point;
     uint8_t color[16];
-    static const int indexMap[8] = {
-        0 << 30, 2 << 30, 0 << 30, 2 << 30,
-        3 << 30, 3 << 30, 1 << 30, 1 << 30,
+    static const uint32_t indexMap[8] = {
+        0U << 30, 2U << 30, 0U << 30, 2U << 30,
+        3U << 30, 3U << 30, 1U << 30, 1U << 30,
     };
 
     /* Fill color and compute direction for each component */
-- 
2.32.0

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