libavcodec/takdec.c:463: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `bits_esc4`.

libavcodec/takdec.c:456:20: Call
454.             return AVERROR_INVALIDDATA;
455. 
456.         if ((ret = decode_residues(s, decoded, filter_order)) < 0)
                        ^
457.             return ret;
458. 

libavcodec/takdec.c:286:1: Parameter `s->bc.bits_left`
  284. }
  285. 
  286. static int decode_residues(TAKDecContext *s, int32_t *decoded, int length)
       ^
  287. {
  288.     BitstreamContext *bc = &s->bc;

libavcodec/takdec.c:463:14: Call
461.     }
462. 
463.     dshift = bits_esc4(bc);
                  ^
464.     size   = bitstream_read_bit(bc) + 6;
465. 

libavcodec/takdec.c:367:1: Parameter `bc->bits_left`
  365. }
  366. 
  367. static int bits_esc4(BitstreamContext *bc)
       ^
  368. {
  369.     if (bitstream_read_bit(bc))

libavcodec/takdec.c:369:9: Call
  367. static int bits_esc4(BitstreamContext *bc)
  368. {
  369.     if (bitstream_read_bit(bc))
               ^
  370.         return bitstream_read(bc, 4) + 1;
  371.     else

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 `bits_esc4` 
      137.     bc->bits <<= n;
      138. #endif
      139.     bc->bits_left -= n;
               ^
      140. 
      141.     return ret;
