libavcodec/dvdec.c:104: error: Integer Overflow L2
  ([0, +oo] - 9):unsigned32 by call to `bitstream_skip`.

libavcodec/dvdec.c:83:1: Parameter `bc->bits_left`
81. 
82. /* decode AC coefficients */
83. static void dv_decode_ac(BitstreamContext *bc, BlockInfo *mb, int16_t *block)
    ^
84. {
85.     const uint8_t  *scan_table   = mb->scan_table;

libavcodec/dvdec.c:104:9: Call
102.                 pos, bitstream_peek(bc, 16), bitstream_tell(bc));
103. 
104.         BITSTREAM_RL_VLC(level, run, bc, ff_dv_rl_vlc, TEX_VLC_BITS, 2);
             ^
105. 
106.         if (bitstream_bits_left(bc) < 0) {

libavcodec/bitstream.h:214:1: Parameter `n`
  212. /* Return n bits from the buffer, but do not change the buffer state.
  213.  * n has to be in the 0-32 range. */
  214. static inline unsigned bitstream_peek(BitstreamContext *bc, unsigned n)
       ^
  215. {
  216.     if (n > bc->bits_left)

libavcodec/dvdec.c:104:9: Call
102.                 pos, bitstream_peek(bc, 16), bitstream_tell(bc));
103. 
104.         BITSTREAM_RL_VLC(level, run, bc, ff_dv_rl_vlc, TEX_VLC_BITS, 2);
             ^
105. 
106.         if (bitstream_bits_left(bc) < 0) {

libavcodec/bitstream.h:240:1: Parameter `n`
  238. 
  239. /* Skip n bits in the buffer. */
  240. static inline void bitstream_skip(BitstreamContext *bc, unsigned n)
       ^
  241. {
  242.     if (n < bc->bits_left)

libavcodec/bitstream.h:243:9: Call
  241. {
  242.     if (n < bc->bits_left)
  243.         skip_remaining(bc, n);
               ^
  244.     else {
  245.         n -= bc->bits_left;

libavcodec/bitstream.h:229:1: <LHS trace>
227. }
228. 
229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
     ^
230. {
231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: Parameter `bc->bits_left`
    227. }
    228. 
    229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    230. {
    231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: <RHS trace>
227. }
228. 
229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
     ^
230. {
231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: Parameter `n`
    227. }
    228. 
    229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    230. {
    231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:236:5: Binary operation: ([0, +oo] - 9):unsigned32 by call to `bitstream_skip` 
    234.     bc->bits <<= n;
    235. #endif
    236.     bc->bits_left -= n;
             ^
    237. }
    238. 
