libavcodec/wnv1.c:55: error: Integer Overflow L2
  (32 - [0, `w->bc.bits_left` + 95]):unsigned32 by call to `bitstream_read`.

libavcodec/wnv1.c:50:1: Parameter `w->bc.bits_left`
48. 
49. /* returns modified base_value */
50. static inline int wnv1_get_code(WNV1Context *w, int base_value)
    ^
51. {
52.     int v = bitstream_read_vlc(&w->bc, code_vlc.table, CODE_VLC_BITS, 1);

libavcodec/wnv1.c:52:13: Call
50. static inline int wnv1_get_code(WNV1Context *w, int base_value)
51. {
52.     int v = bitstream_read_vlc(&w->bc, code_vlc.table, CODE_VLC_BITS, 1);
                ^
53. 
54.     if (v == 15)

libavcodec/bitstream.h:313:1: Parameter `(*table)[*]`
  311.  * If the VLC code is invalid and max_depth > 1, then the number of bits removed
  312.  * is undefined. */
  313. static inline int bitstream_read_vlc(BitstreamContext *bc, VLC_TYPE (*table)[2],
       ^
  314.                                      int bits, int max_depth)
  315. {

libavcodec/bitstream.h:319:5: Assignment
  317.     unsigned idx = bitstream_peek(bc, bits);
  318.     int code = table[idx][0];
  319.     int n    = table[idx][1];
           ^
  320. 
  321.     if (max_depth > 1 && n < 0) {

libavcodec/bitstream.h:329:5: Call
  327.         }
  328.     }
  329.     skip_remaining(bc, n);
           ^
  330. 
  331.     return code;

libavcodec/bitstream.h:230:1: Parameter `n`
    228. }
    229. 
    230. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    231. {
    232. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:237:5: Assignment
    235.     bc->bits <<= n;
    236. #endif
    237.     bc->bits_left -= n;
             ^
    238. }
    239. 

libavcodec/wnv1.c:55:27: Call
53. 
54.     if (v == 15)
55.         return ff_reverse[bitstream_read(&w->bc, 8 - w->shift)];
                              ^
56.     else
57.         return base_value + ((v - 7) << w->shift);

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:189:9: Call
  187. 
  188.     if (n > bc->bits_left) {
  189.         refill_32(bc);
               ^
  190.         if (bc->bits_left < 32)
  191.             bc->bits_left = n;

libavcodec/bitstream.h:60:1: <RHS trace>
58. }
59. 
60. static inline void refill_32(BitstreamContext *bc)
    ^
61. {
62.     if (bc->ptr >= bc->buffer_end)

libavcodec/bitstream.h:60:1: Parameter `bc->bits_left`
    58. }
    59. 
    60. static inline void refill_32(BitstreamContext *bc)
        ^
    61. {
    62.     if (bc->ptr >= bc->buffer_end)

libavcodec/bitstream.h:68:5: Binary operation: (32 - [0, w->bc.bits_left + 95]):unsigned32 by call to `bitstream_read` 
    66.     bc->bits       = (uint64_t)AV_RL32(bc->ptr) << bc->bits_left | bc->bits;
    67. #else
    68.     bc->bits       = bc->bits | (uint64_t)AV_RB32(bc->ptr) << (32 - bc->bits_left);
            ^
    69. #endif
    70.     bc->ptr       += 4;
