libavformat/h263dec.c:36: error: Integer Overflow L1
  ([4722366482869645213440, +oo] + `*p->buf`):unsigned64.

libavformat/h263dec.c:27:5: <LHS trace>
25. static int h263_probe(AVProbeData *p)
26. {
27.     uint64_t code= -1;
        ^
28.     int i;
29.     int valid_psc=0;

libavformat/h263dec.c:27:5: Assignment
25. static int h263_probe(AVProbeData *p)
26. {
27.     uint64_t code= -1;
        ^
28.     int i;
29.     int valid_psc=0;

libavformat/h263dec.c:25:1: <RHS trace>
23. #include "rawdec.h"
24. 
25. static int h263_probe(AVProbeData *p)
    ^
26. {
27.     uint64_t code= -1;

libavformat/h263dec.c:25:1: Parameter `*p->buf`
23. #include "rawdec.h"
24. 
25. static int h263_probe(AVProbeData *p)
    ^
26. {
27.     uint64_t code= -1;

libavformat/h263dec.c:36:9: Binary operation: ([4722366482869645213440, +oo] + *p->buf):unsigned64
34. 
35.     for(i=0; i<p->buf_size; i++){
36.         code = (code<<8) + p->buf[i];
            ^
37.         if ((code & 0xfffffc0000) == 0x800000) {
38.             src_fmt= (code>>2)&3;
