libavcodec/mpeg12dec.c:2306: error: Integer Overflow L1
  ([1099511627520, +oo] + `*buf`):unsigned32 by call to `avpriv_find_start_code`.

libavcodec/mpeg12dec.c:2293:1: Parameter `*buf`
2291. }
2292. 
2293. static int decode_chunks(AVCodecContext *avctx, AVFrame *picture,
      ^
2294.                          int *got_output, const uint8_t *buf, int buf_size)
2295. {

libavcodec/mpeg12dec.c:2306:19: Call
2304.         /* find next start code */
2305.         uint32_t start_code = -1;
2306.         buf_ptr = avpriv_find_start_code(buf_ptr, buf_end, &start_code);
                        ^
2307.         if (start_code > 0x1ff) {
2308.             if (!skip_frame) {

libavcodec/utils.c:2299:1: <LHS trace>
2297. }
2298. 
2299. const uint8_t *avpriv_find_start_code(const uint8_t *restrict p,
      ^
2300.                                       const uint8_t *end,
2301.                                       uint32_t * restrict state)

libavcodec/utils.c:2299:1: Parameter `*state`
  2297. }
  2298. 
  2299. const uint8_t *avpriv_find_start_code(const uint8_t *restrict p,
        ^
  2300.                                       const uint8_t *end,
  2301.                                       uint32_t * restrict state)

libavcodec/utils.c:2310:9: Assignment
  2308. 
  2309.     for (i = 0; i < 3; i++) {
  2310.         uint32_t tmp = *state << 8;
                ^
  2311.         *state = tmp + *(p++);
  2312.         if (tmp == 0x100 || p == end)

libavcodec/utils.c:2299:1: <RHS trace>
2297. }
2298. 
2299. const uint8_t *avpriv_find_start_code(const uint8_t *restrict p,
      ^
2300.                                       const uint8_t *end,
2301.                                       uint32_t * restrict state)

libavcodec/utils.c:2299:1: Parameter `*p`
  2297. }
  2298. 
  2299. const uint8_t *avpriv_find_start_code(const uint8_t *restrict p,
        ^
  2300.                                       const uint8_t *end,
  2301.                                       uint32_t * restrict state)

libavcodec/utils.c:2311:9: Binary operation: ([1099511627520, +oo] + *buf):unsigned32 by call to `avpriv_find_start_code` 
  2309.     for (i = 0; i < 3; i++) {
  2310.         uint32_t tmp = *state << 8;
  2311.         *state = tmp + *(p++);
                ^
  2312.         if (tmp == 0x100 || p == end)
  2313.             return p;
