libavcodec/wmavoice.c:1708: error: Integer Overflow L2
  ([0, +oo] - 8):unsigned32 by call to `bitstream_skip`.

libavcodec/wmavoice.c:1705:13: Call
1703.             if (bitstream_bits_left(bc) < s->pitch_nbits)
1704.                 return 1;
1705.             bitstream_skip(bc, s->pitch_nbits);
                  ^
1706.         }
1707.         if (frame_desc->fcb_type == FCB_TYPE_SILENCE) {

libavcodec/bitstream.h:247:9: Assignment
  245.         n -= bc->bits_left;
  246.         bc->bits      = 0;
  247.         bc->bits_left = 0;
               ^
  248. 
  249.         if (n >= 64) {

libavcodec/bitstream.h:255:9: Call
  253.             bc->ptr += skip;
  254.         }
  255.         refill_64(bc);
               ^
  256.         if (n)
  257.             skip_remaining(bc, n);

libavcodec/bitstream.h:45:1: Parameter `bc->bits_left`
    43. } BitstreamContext;
    44. 
    45. static inline void refill_64(BitstreamContext *bc)
        ^
    46. {
    47.     if (bc->ptr >= bc->buffer_end)

libavcodec/wmavoice.c:1708:13: Call
1706.         }
1707.         if (frame_desc->fcb_type == FCB_TYPE_SILENCE) {
1708.             bitstream_skip(bc, 8);
                  ^
1709.         } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {
1710.             int tmp = bitstream_read(bc, 6);

libavcodec/bitstream.h:240:1: Parameter `n`
  238. 
  239. /* Skip n bits in the buffer. */
  240. static inline void bitstream_skip(BitstreamContext *bc, unsigned n)
       ^
  241. {
  242.     if (n < bc->bits_left)

libavcodec/bitstream.h:243:9: Call
  241. {
  242.     if (n < bc->bits_left)
  243.         skip_remaining(bc, n);
               ^
  244.     else {
  245.         n -= bc->bits_left;

libavcodec/bitstream.h:229:1: <LHS trace>
227. }
228. 
229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
     ^
230. {
231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: Parameter `bc->bits_left`
    227. }
    228. 
    229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    230. {
    231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: <RHS trace>
227. }
228. 
229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
     ^
230. {
231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:229:1: Parameter `n`
    227. }
    228. 
    229. static inline void skip_remaining(BitstreamContext *bc, unsigned n)
         ^
    230. {
    231. #ifdef BITSTREAM_READER_LE

libavcodec/bitstream.h:236:5: Binary operation: ([0, +oo] - 8):unsigned32 by call to `bitstream_skip` 
    234.     bc->bits <<= n;
    235. #endif
    236.     bc->bits_left -= n;
             ^
    237. }
    238. 

static inline void skip_remaining(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
    bc->bits >>= n;
#else
    bc->bits <<= n;
#endif
    bc->bits_left -= n;
}
['static int check_bits_for_superframe(BitstreamContext *orig_bc,\n                                     WMAVoiceContext *s)\n{\n    BitstreamContext s_bc, *bc = &s_bc;\n    int n, need_bits, bd_idx;\n    const struct frame_type_desc *frame_desc;\n    *bc = *orig_bc;\n    if (bitstream_bits_left(bc) < 14)\n        return 1;\n    if (!bitstream_read_bit(bc))\n        return AVERROR(ENOSYS);\n    if (bitstream_read_bit(bc)) bitstream_skip(bc, 12);\n    if (s->has_residual_lsps) {\n        if (bitstream_bits_left(bc) < s->sframe_lsp_bitsize)\n            return 1;\n        bitstream_skip(bc, s->sframe_lsp_bitsize);\n    }\n    for (n = 0; n < MAX_FRAMES; n++) {\n        int aw_idx_is_ext = 0;\n        if (!s->has_residual_lsps) {\n           if (bitstream_bits_left(bc) < s->frame_lsp_bitsize)\n               return 1;\n           bitstream_skip(bc, s->frame_lsp_bitsize);\n        }\n        bd_idx = s->vbm_tree[bitstream_read_vlc(bc, frame_type_vlc.table, 6, 3)];\n        if (bd_idx < 0)\n            return AVERROR_INVALIDDATA;\n        frame_desc = &frame_descs[bd_idx];\n        if (frame_desc->acb_type == ACB_TYPE_ASYMMETRIC) {\n            if (bitstream_bits_left(bc) < s->pitch_nbits)\n                return 1;\n            bitstream_skip(bc, s->pitch_nbits);\n        }\n        if (frame_desc->fcb_type == FCB_TYPE_SILENCE) {\n            bitstream_skip(bc, 8);\n        } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {\n            int tmp = bitstream_read(bc, 6);\n            if (tmp >= 0x36) {\n                bitstream_skip(bc, 2);\n                aw_idx_is_ext = 1;\n            }\n        }\n        if (frame_desc->acb_type == ACB_TYPE_HAMMING) {\n            need_bits = s->block_pitch_nbits +\n                (frame_desc->n_blocks - 1) * s->block_delta_pitch_nbits;\n        } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {\n            need_bits = 2 * !aw_idx_is_ext;\n        } else\n            need_bits = 0;\n        need_bits += frame_desc->frame_size;\n        if (bitstream_bits_left(bc) < need_bits)\n            return 1;\n        bitstream_skip(bc, need_bits);\n    }\n    return 0;\n}', 'static inline void bitstream_skip(BitstreamContext *bc, unsigned n)\n{\n    if (n < bc->bits_left)\n        skip_remaining(bc, n);\n    else {\n        n -= bc->bits_left;\n        bc->bits      = 0;\n        bc->bits_left = 0;\n        if (n >= 64) {\n            unsigned skip = n / 8;\n            n -= skip * 8;\n            bc->ptr += skip;\n        }\n        refill_64(bc);\n        if (n)\n            skip_remaining(bc, n);\n    }\n}', 'static inline void refill_64(BitstreamContext *bc)\n{\n    if (bc->ptr >= bc->buffer_end)\n        return;\n#ifdef BITSTREAM_READER_LE\n    bc->bits       = AV_RL64(bc->ptr);\n#else\n    bc->bits       = AV_RB64(bc->ptr);\n#endif\n    bc->ptr       += 8;\n    bc->bits_left  = 64;\n}', 'static inline void skip_remaining(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n    bc->bits >>= n;\n#else\n    bc->bits <<= n;\n#endif\n    bc->bits_left -= n;\n}']