libavformat/mux.c:215: error: Integer Overflow L2
  ([1, 32] - [0, 31]):unsigned64 by call to `av_get_codec_tag_string`.

libavformat/mux.c:215:21: Call
213.                 if (!validate_codec_tag(s, st)) {
214.                     char tagbuf[32];
215.                     av_get_codec_tag_string(tagbuf, sizeof(tagbuf), codec->codec_tag);
                         ^
216.                     av_log(s, AV_LOG_ERROR,
217.                            "Tag %s/0x%08x incompatible with output codec id '%d'\n",

libavcodec/utils.c:1561:1: <LHS trace>
1559. }
1560. 
1561. size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
      ^
1562. {
1563.     int i, len, ret = 0;

libavcodec/utils.c:1561:1: Parameter `buf_size`
  1559. }
  1560. 
  1561. size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
        ^
  1562. {
  1563.     int i, len, ret = 0;

libavcodec/utils.c:1561:1: <RHS trace>
1559. }
1560. 
1561. size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
      ^
1562. {
1563.     int i, len, ret = 0;

libavcodec/utils.c:1561:1: Parameter `buf_size`
  1559. }
  1560. 
  1561. size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag)
        ^
  1562. {
  1563.     int i, len, ret = 0;

libavcodec/utils.c:1574:23: Binary operation: ([1, 32] - [0, 31]):unsigned64 by call to `av_get_codec_tag_string` 
  1572.                        TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF);
  1573.         buf        += len;
  1574.         buf_size    = buf_size > len ? buf_size - len : 0;
                              ^
  1575.         ret        += len;
  1576.         codec_tag >>= 8;
