libavcodec/mpc8.c:363: error: Integer Overflow L2
  ([0, 2] - 1):unsigned32.

libavcodec/mpc8.c:363:66: <LHS trace>
361.                     t = mpc8_get_mask(gb, 18, cnt);
362.                     for(k = 0; k < SAMPLES_PER_BAND / 2; k++, t <<= 1)
363.                         c->Q[ch][off + j + k] = (t & 0x20000) ? (get_bits1(gb) << 1) - 1 : 0;
                                                                      ^
364.                 }
365.                 break;

libavcodec/mpc8.c:363:66: Call
361.                     t = mpc8_get_mask(gb, 18, cnt);
362.                     for(k = 0; k < SAMPLES_PER_BAND / 2; k++, t <<= 1)
363.                         c->Q[ch][off + j + k] = (t & 0x20000) ? (get_bits1(gb) << 1) - 1 : 0;
                                                                      ^
364.                 }
365.                 break;

libavcodec/get_bits.h:255:1: Parameter `s->index`
  253. }
  254. 
  255. static inline unsigned int get_bits1(GetBitContext *s)
       ^
  256. {
  257.     unsigned int index = s->index;

libavcodec/get_bits.h:257:5: Assignment
  255. static inline unsigned int get_bits1(GetBitContext *s)
  256. {
  257.     unsigned int index = s->index;
           ^
  258.     uint8_t result = s->buffer[index>>3];
  259. #ifdef BITSTREAM_READER_LE

libavcodec/get_bits.h:260:5: Assignment
  258.     uint8_t result = s->buffer[index>>3];
  259. #ifdef BITSTREAM_READER_LE
  260.     result >>= index & 7;
           ^
  261.     result &= 1;
  262. #else

libavcodec/get_bits.h:261:5: Assignment
  259. #ifdef BITSTREAM_READER_LE
  260.     result >>= index & 7;
  261.     result &= 1;
           ^
  262. #else
  263.     result <<= index & 7;

libavcodec/get_bits.h:272:5: Assignment
  270.     s->index = index;
  271. 
  272.     return result;
           ^
  273. }
  274. 

libavcodec/mpc8.c:363:49: Binary operation: ([0, 2] - 1):unsigned32
361.                     t = mpc8_get_mask(gb, 18, cnt);
362.                     for(k = 0; k < SAMPLES_PER_BAND / 2; k++, t <<= 1)
363.                         c->Q[ch][off + j + k] = (t & 0x20000) ? (get_bits1(gb) << 1) - 1 : 0;
                                                     ^
364.                 }
365.                 break;
