libavcodec/wmaprodec.c:709: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `bitstream_read_bit`.

libavcodec/wmaprodec.c:752:25: Call
750.                     chgroup->transform = 1;
751.                     if (bitstream_read_bit(&s->bc)) {
752.                         decode_decorrelation_matrix(s, chgroup);
                             ^
753.                     } else {
754.                         /** FIXME: more than 6 coupled channels not supported */

libavcodec/wmaprodec.c:628:1: Parameter `s->bc.bits_left`
  626.  *@param chgroup channel group for which the matrix needs to be calculated
  627.  */
  628. static void decode_decorrelation_matrix(WMAProDecodeCtx *s,
       ^
  629.                                         WMAProChannelGrp *chgroup)
  630. {

libavcodec/wmaprodec.c:709:28: Call
707.                     int channel_idx = s->channel_indexes_for_cur_subframe[i];
708.                     if (!s->channel[channel_idx].grouped
709.                         && bitstream_read_bit(&s->bc)) {
                                ^
710.                         ++chgroup->num_channels;
711.                         s->channel[channel_idx].grouped = 1;

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