libavcodec/wavpack.c:494: error: Integer Overflow L2
  ([1, +oo] - 8):unsigned32 by call to `bitstream_read`.

libavcodec/wavpack.c:494:27: Call
492.                 S = bitstream_read(&s->bc_extra_bits, 23);
493.                 if (s->float_max_exp >= 25)
494.                     exp = bitstream_read(&s->bc_extra_bits, 8);
                               ^
495.                 sign = bitstream_read_bit(&s->bc_extra_bits);
496.             } else {

libavcodec/bitstream.h:183:1: Parameter `n`
  181. 
  182. /* Return n bits from the buffer. n has to be in the 0-32 range. */
  183. static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)
       ^
  184. {
  185.     if (!n)

libavcodec/bitstream.h:194:12: Call
  192.     }
  193. 
  194.     return get_val(bc, n);
                  ^
  195. }
  196. 

libavcodec/bitstream.h:130:1: <LHS trace>
128. }
129. 
130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
     ^
131. {
132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:130:1: Parameter `bc->bits_left`
    128. }
    129. 
    130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
         ^
    131. {
    132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:130:1: <RHS trace>
128. }
129. 
130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
     ^
131. {
132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:130:1: Parameter `n`
    128. }
    129. 
    130. static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
         ^
    131. {
    132. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:139:5: Binary operation: ([1, +oo] - 8):unsigned32 by call to `bitstream_read` 
    137.     bc->bits <<= n;
    138. #endif
    139.     bc->bits_left -= n;
             ^
    140. 
    141.     return ret;

static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
    uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
    bc->bits >>= n;
#else
    uint64_t ret = bc->bits >> (64 - n);
    bc->bits <<= n;
#endif
    bc->bits_left -= n;
    return ret;
}
['static float wv_get_value_float(WavpackFrameContext *s, uint32_t *crc, int S)\n{\n    union {\n        float    f;\n        uint32_t u;\n    } value;\n    unsigned int sign;\n    int exp = s->float_max_exp;\n    if (s->got_extra_bits) {\n        const int max_bits  = 1 + 23 + 8 + 1;\n        const int left_bits = bitstream_bits_left(&s->bc_extra_bits);\n        if (left_bits + 8 * AV_INPUT_BUFFER_PADDING_SIZE < max_bits)\n            return 0.0;\n    }\n    if (S) {\n        S  <<= s->float_shift;\n        sign = S < 0;\n        if (sign)\n            S = -S;\n        if (S >= 0x1000000) {\n            if (s->got_extra_bits && bitstream_read_bit(&s->bc_extra_bits))\n                S = bitstream_read(&s->bc_extra_bits, 23);\n            else\n                S = 0;\n            exp = 255;\n        } else if (exp) {\n            int shift = 23 - av_log2(S);\n            exp = s->float_max_exp;\n            if (exp <= shift)\n                shift = --exp;\n            exp -= shift;\n            if (shift) {\n                S <<= shift;\n                if ((s->float_flag & WV_FLT_SHIFT_ONES) ||\n                    (s->got_extra_bits &&\n                     (s->float_flag & WV_FLT_SHIFT_SAME) &&\n                     bitstream_read_bit(&s->bc_extra_bits))) {\n                    S |= (1 << shift) - 1;\n                } else if (s->got_extra_bits &&\n                           (s->float_flag & WV_FLT_SHIFT_SENT)) {\n                    S |= bitstream_read(&s->bc_extra_bits, shift);\n                }\n            }\n        } else {\n            exp = s->float_max_exp;\n        }\n        S &= 0x7fffff;\n    } else {\n        sign = 0;\n        exp  = 0;\n        if (s->got_extra_bits && (s->float_flag & WV_FLT_ZERO_SENT)) {\n            if (bitstream_read_bit(&s->bc_extra_bits)) {\n                S = bitstream_read(&s->bc_extra_bits, 23);\n                if (s->float_max_exp >= 25)\n                    exp = bitstream_read(&s->bc_extra_bits, 8);\n                sign = bitstream_read_bit(&s->bc_extra_bits);\n            } else {\n                if (s->float_flag & WV_FLT_ZERO_SIGN)\n                    sign = bitstream_read_bit(&s->bc_extra_bits);\n            }\n        }\n    }\n    *crc = *crc * 27 + S * 9 + exp * 3 + sign;\n    value.u = (sign << 31) | (exp << 23) | S;\n    return value.f;\n}', 'static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)\n{\n    if (!n)\n        return 0;\n    if (n > bc->bits_left) {\n        refill_32(bc);\n        if (bc->bits_left < 32)\n            bc->bits_left = n;\n    }\n    return get_val(bc, n);\n}', 'static inline uint64_t get_val(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n    uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);\n    bc->bits >>= n;\n#else\n    uint64_t ret = bc->bits >> (64 - n);\n    bc->bits <<= n;\n#endif\n    bc->bits_left -= n;\n    return ret;\n}']