libavutil/imgutils.c:173: error: Integer Overflow L2
  ([0, 518135265] + 4278190080):unsigned32.

libavutil/imgutils.c:143:10: <LHS trace>
141.     int i;
142. 
143.     for (i = 0; i < 256; i++) {
              ^
144.         int r, g, b;
145. 

libavutil/imgutils.c:143:10: Assignment
141.     int i;
142. 
143.     for (i = 0; i < 256; i++) {
              ^
144.         int r, g, b;
145. 

libavutil/imgutils.c:148:13: Assignment
146.         switch (pix_fmt) {
147.         case AV_PIX_FMT_RGB8:
148.             r = (i>>5    )*36;
                 ^
149.             g = ((i>>2)&7)*36;
150.             b = (i&3     )*85;

libavutil/imgutils.c:173:9: Binary operation: ([0, 518135265] + 4278190080):unsigned32
171.             return AVERROR(EINVAL);
172.         }
173.         pal[i] = b + (g << 8) + (r << 16) + (0xFFU << 24);
             ^
174.     }
175. 
