libavcodec/h264_mp4toannexb_bsf.c:56: error: Buffer Overrun L3
  Offset: 2 Size: [1, 2147483631].

libavcodec/h264_mp4toannexb_bsf.c:34:1: <Length trace>
32. } H264BSFContext;
33. 
34. static int alloc_and_copy(uint8_t **poutbuf, int *poutbuf_size,
    ^
35.                           const uint8_t *sps_pps, uint32_t sps_pps_size,
36.                           const uint8_t *in, uint32_t in_size)

libavcodec/h264_mp4toannexb_bsf.c:34:1: Parameter `sps_pps_size`
32. } H264BSFContext;
33. 
34. static int alloc_and_copy(uint8_t **poutbuf, int *poutbuf_size,
    ^
35.                           const uint8_t *sps_pps, uint32_t sps_pps_size,
36.                           const uint8_t *in, uint32_t in_size)

libavcodec/h264_mp4toannexb_bsf.c:56:9: Array access: Offset: 2 Size: [1, 2147483631]
54.         (*poutbuf + offset + sps_pps_size)[0] =
55.         (*poutbuf + offset + sps_pps_size)[1] = 0;
56.         (*poutbuf + offset + sps_pps_size)[2] = 1;
            ^
57.     }
58. 
