libavcodec/cavsdec.c:888: error: Integer Overflow L2
  ([1, +oo] - 6):unsigned32 by call to `bitstream_read`.

libavcodec/cavsdec.c:888:23: Call
886.     if ((h->mby == 0) && (!h->qp_fixed)) {
887.         h->qp_fixed = bitstream_read_bit(bc);
888.         h->qp       = bitstream_read(bc, 6);
                           ^
889.     }
890.     /* inter frame or second slice can have weighting params */

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] - 6):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 inline int decode_slice_header(AVSContext *h, BitstreamContext *bc)\n{\n    if (h->stc > 0xAF)\n        av_log(h->avctx, AV_LOG_ERROR, "unexpected start code 0x%02x\\n", h->stc);\n    h->mby   = h->stc;\n    h->mbidx = h->mby * h->mb_width;\n    h->flags &= ~(B_AVAIL | C_AVAIL);\n    if ((h->mby == 0) && (!h->qp_fixed)) {\n        h->qp_fixed = bitstream_read_bit(bc);\n        h->qp       = bitstream_read(bc, 6);\n    }\n    if ((h->cur.f->pict_type != AV_PICTURE_TYPE_I) ||\n        (!h->pic_structure && h->mby >= h->mb_width / 2))\n        if (bitstream_read_bit(bc)) {\n            av_log(h->avctx, AV_LOG_ERROR,\n                   "weighted prediction not yet supported\\n");\n        }\n    return 0;\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}']