libavcodec/dxtory.c:185: error: Integer Overflow L2
  (32 - [0, max(63, `bc->bits_left`)]):unsigned32 by call to `bitstream_read`.

libavcodec/dxtory.c:179:1: Parameter `bc->bits_left`
177. static const uint8_t def_lru_565[8] = { 0x00, 0x08, 0x10, 0x20, 0x30, 0x3F };
178. 
179. static inline uint8_t decode_sym(BitstreamContext *bc, uint8_t lru[8])
     ^
180. {
181.     uint8_t c, val;

libavcodec/dxtory.c:183:9: Call
181.     uint8_t c, val;
182. 
183.     c = get_unary(bc, 0, 8);
             ^
184.     if (!c) {
185.         val = bitstream_read(bc, 8);

libavcodec/unary.h:33:1: Parameter `bc->bits_left`
  31.  * @return Unary length/index
  32.  */
  33. static inline int get_unary(BitstreamContext *bc, int stop, int len)
      ^
  34. {
  35.     int i;

libavcodec/dxtory.c:185:15: Call
183.     c = get_unary(bc, 0, 8);
184.     if (!c) {
185.         val = bitstream_read(bc, 8);
                   ^
186.         memmove(lru + 1, lru, sizeof(*lru) * (8 - 1));
187.     } else {

libavcodec/bitstream.h:183:1: Parameter `n`
  181. 
  182. /* Return n bits from the buffer. n has to be in the 0-32 range. */
  183. static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)
       ^
  184. {
  185.     if (!n)

libavcodec/bitstream.h:189:9: Call
  187. 
  188.     if (n > bc->bits_left) {
  189.         refill_32(bc);
               ^
  190.         if (bc->bits_left < 32)
  191.             bc->bits_left = n;

libavcodec/bitstream.h:60:1: <RHS trace>
58. }
59. 
60. static inline void refill_32(BitstreamContext *bc)
    ^
61. {
62.     if (bc->ptr >= bc->buffer_end)

libavcodec/bitstream.h:60:1: Parameter `bc->bits_left`
    58. }
    59. 
    60. static inline void refill_32(BitstreamContext *bc)
        ^
    61. {
    62.     if (bc->ptr >= bc->buffer_end)

libavcodec/bitstream.h:68:5: Binary operation: (32 - [0, max(63, bc->bits_left)]):unsigned32 by call to `bitstream_read` 
    66.     bc->bits       = (uint64_t)AV_RL32(bc->ptr) << bc->bits_left | bc->bits;
    67. #else
    68.     bc->bits       = bc->bits | (uint64_t)AV_RB32(bc->ptr) << (32 - bc->bits_left);
            ^
    69. #endif
    70.     bc->ptr       += 4;
