libavcodec/bgmc.c:554: error: Integer Overflow L2
  ([0, max(64, `bc->bits_left`)] - 1):unsigned32 by call to `bitstream_read_bit`.

libavcodec/bgmc.c:509:1: Parameter `bc->bits_left`
507. 
508. /** Read and decode a block Gilbert-Moore coded symbol */
509. void ff_bgmc_decode(BitstreamContext *bc, unsigned int num, int32_t *dst,
     ^
510.                     int delta, unsigned int sx,
511.                     unsigned int *h, unsigned int *l, unsigned int *v,

libavcodec/bgmc.c:554:33: Call
552.             low  *= 2;
553.             high  = 2 * high + 1;
554.             value = 2 * value + bitstream_read_bit(bc);
                                     ^
555.         }
556. 

libavcodec/bitstream.h:145:1: Parameter `bc->bits_left`
  143. 
  144. /* Return one bit from the buffer. */
  145. static inline unsigned bitstream_read_bit(BitstreamContext *bc)
       ^
  146. {
  147.     if (!bc->bits_left)

libavcodec/bitstream.h:150:12: Call
  148.         refill_64(bc);
  149. 
  150.     return get_val(bc, 1);
                  ^
  151. }
  152. 

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: ([0, max(64, bc->bits_left)] - 1):unsigned32 by call to `bitstream_read_bit` 
    137.     bc->bits <<= n;
    138. #endif
    139.     bc->bits_left -= n;
             ^
    140. 
    141.     return ret;
