libavcodec/wmaprodec.c:929: error: Integer Overflow L2
  ([0, 1] - 1):unsigned32.

libavcodec/wmaprodec.c:927:41: <LHS trace>
925. 
926.                     if (!idx) {
927.                         uint32_t code = get_bits(&s->gb, 14);
                                             ^
928.                         val  =  code >> 6;
929.                         sign = (code & 1) - 1;

libavcodec/wmaprodec.c:927:41: Call
925. 
926.                     if (!idx) {
927.                         uint32_t code = get_bits(&s->gb, 14);
                                             ^
928.                         val  =  code >> 6;
929.                         sign = (code & 1) - 1;

libavcodec/get_bits.h:277:5: Call
  275.     register int tmp;
  276.     OPEN_READER(re, s);
  277.     UPDATE_CACHE(re, s);
           ^
  278.     tmp = SHOW_UBITS(re, s, n);
  279.     LAST_SKIP_BITS(re, s, n);

libavutil/bswap.h:66:1: Parameter `x`
    64. 
    65. #ifndef av_bswap32
    66. static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
        ^
    67. {
    68.     return AV_BSWAP32C(x);

libavutil/bswap.h:68:5: Assignment
    66. static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
    67. {
    68.     return AV_BSWAP32C(x);
            ^
    69. }
    70. #endif

libavcodec/get_bits.h:277:5: Assignment
  275.     register int tmp;
  276.     OPEN_READER(re, s);
  277.     UPDATE_CACHE(re, s);
           ^
  278.     tmp = SHOW_UBITS(re, s, n);
  279.     LAST_SKIP_BITS(re, s, n);

libavcodec/get_bits.h:278:5: Assignment
  276.     OPEN_READER(re, s);
  277.     UPDATE_CACHE(re, s);
  278.     tmp = SHOW_UBITS(re, s, n);
           ^
  279.     LAST_SKIP_BITS(re, s, n);
  280.     CLOSE_READER(re, s);

libavcodec/get_bits.h:281:5: Assignment
  279.     LAST_SKIP_BITS(re, s, n);
  280.     CLOSE_READER(re, s);
  281.     return tmp;
           ^
  282. }
  283. 

libavcodec/wmaprodec.c:927:25: Assignment
925. 
926.                     if (!idx) {
927.                         uint32_t code = get_bits(&s->gb, 14);
                             ^
928.                         val  =  code >> 6;
929.                         sign = (code & 1) - 1;

libavcodec/wmaprodec.c:929:25: Binary operation: ([0, 1] - 1):unsigned32
927.                         uint32_t code = get_bits(&s->gb, 14);
928.                         val  =  code >> 6;
929.                         sign = (code & 1) - 1;
                             ^
930.                         skip = (code & 0x3f) >> 1;
931.                     } else if (idx == 1) {
