libavcodec/eatgv.c:129: error: Uninitialized Value
  The value read from offset was never initialized.

libavcodec/eatgv.c:129:13: 
127.             size -= size2;
128.             run   = FFMIN(size2, dst_end - dst);
129.             av_memcpy_backptr(dst, offset, run);
                 ^
130.             dst += run;
131.         }
