libavcodec/tta.c:201: error: Integer Overflow L2
  (32 - [0, 64]):unsigned32 by call to `bitstream_peek`.

libavcodec/tta.c:200:5: Call
198.         return -1;
199. 
200.     bitstream_init(&s->bc, avctx->extradata, avctx->extradata_size * 8);
         ^
201.     if (bitstream_peek(&s->bc, 32) == AV_RL32("TTA1")) {
202.         if (avctx->err_recognition & AV_EF_CRCCHECK) {

libavcodec/bitstream.h:85:9: Assignment
  83.         bc->buffer    =
  84.         bc->ptr       = NULL;
  85.         bc->bits_left = 0;
              ^
  86.         return AVERROR_INVALIDDATA;
  87.     }

libavcodec/tta.c:201:9: Call
199. 
200.     bitstream_init(&s->bc, avctx->extradata, avctx->extradata_size * 8);
201.     if (bitstream_peek(&s->bc, 32) == AV_RL32("TTA1")) {
             ^
202.         if (avctx->err_recognition & AV_EF_CRCCHECK) {
203.             s->crc_table = av_crc_get_table(AV_CRC_32_IEEE_LE);

libavcodec/bitstream.h:215:1: Parameter `n`
  213. /* Return n bits from the buffer, but do not change the buffer state.
  214.  * n has to be in the 0-32 range. */
  215. static inline unsigned bitstream_peek(BitstreamContext *bc, unsigned n)
       ^
  216. {
  217.     if (n > bc->bits_left)

libavcodec/bitstream.h:218:9: Call
  216. {
  217.     if (n > bc->bits_left)
  218.         refill_32(bc);
               ^
  219. 
  220.     return show_val(bc, 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, 64]):unsigned32 by call to `bitstream_peek` 
    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;
