libavcodec/qdm2.c:1060: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `bitstream_read_bit`.

libavcodec/qdm2.c:1040:1: Parameter `bc->bits_left`
1038.  * @param bc        bitreader context
1039.  */
1040. static void init_tone_level_dequantization(QDM2Context *q, BitstreamContext *bc)
      ^
1041. {
1042.     int sb, j, k, n, ch;

libavcodec/qdm2.c:1060:21: Call
1058.                 if (bitstream_bits_left(bc) < 1)
1059.                     break;
1060.                 if (bitstream_read_bit(bc)) {
                          ^
1061.                     for (k=0; k < 8; k++) {
1062.                         if (bitstream_bits_left(bc) < 16)

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;

static inline uint64_t get_val(BitstreamContext *bc, unsigned n)
{
#ifdef BITSTREAM_READER_LE
    uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);
    bc->bits >>= n;
#else
    uint64_t ret = bc->bits >> (64 - n);
    bc->bits <<= n;
#endif
    bc->bits_left -= n;
    return ret;
}
['static void init_tone_level_dequantization(QDM2Context *q, BitstreamContext *bc)\n{\n    int sb, j, k, n, ch;\n    for (ch = 0; ch < q->nb_channels; ch++) {\n        init_quantized_coeffs_elem0(q->quantized_coeffs[ch][0], bc);\n        if (bitstream_bits_left(bc) < 16) {\n            memset(q->quantized_coeffs[ch][0], 0, 8);\n            break;\n        }\n    }\n    n = q->sub_sampling + 1;\n    for (sb = 0; sb < n; sb++)\n        for (ch = 0; ch < q->nb_channels; ch++)\n            for (j = 0; j < 8; j++) {\n                if (bitstream_bits_left(bc) < 1)\n                    break;\n                if (bitstream_read_bit(bc)) {\n                    for (k=0; k < 8; k++) {\n                        if (bitstream_bits_left(bc) < 16)\n                            break;\n                        q->tone_level_idx_hi1[ch][sb][j][k] = qdm2_get_vlc(bc, &vlc_tab_tone_level_idx_hi1, 0, 2);\n                    }\n                } else {\n                    for (k=0; k < 8; k++)\n                        q->tone_level_idx_hi1[ch][sb][j][k] = 0;\n                }\n            }\n    n = QDM2_SB_USED(q->sub_sampling) - 4;\n    for (sb = 0; sb < n; sb++)\n        for (ch = 0; ch < q->nb_channels; ch++) {\n            if (bitstream_bits_left(bc) < 16)\n                break;\n            q->tone_level_idx_hi2[ch][sb] = qdm2_get_vlc(bc, &vlc_tab_tone_level_idx_hi2, 0, 2);\n            if (sb > 19)\n                q->tone_level_idx_hi2[ch][sb] -= 16;\n            else\n                for (j = 0; j < 8; j++)\n                    q->tone_level_idx_mid[ch][sb][j] = -16;\n        }\n    n = QDM2_SB_USED(q->sub_sampling) - 5;\n    for (sb = 0; sb < n; sb++)\n        for (ch = 0; ch < q->nb_channels; ch++)\n            for (j = 0; j < 8; j++) {\n                if (bitstream_bits_left(bc) < 16)\n                    break;\n                q->tone_level_idx_mid[ch][sb][j] = qdm2_get_vlc(bc, &vlc_tab_tone_level_idx_mid, 0, 2) - 32;\n            }\n}', 'static inline unsigned bitstream_read_bit(BitstreamContext *bc)\n{\n    if (!bc->bits_left)\n        refill_64(bc);\n    return get_val(bc, 1);\n}', 'static inline uint64_t get_val(BitstreamContext *bc, unsigned n)\n{\n#ifdef BITSTREAM_READER_LE\n    uint64_t ret = bc->bits & ((UINT64_C(1) << n) - 1);\n    bc->bits >>= n;\n#else\n    uint64_t ret = bc->bits >> (64 - n);\n    bc->bits <<= n;\n#endif\n    bc->bits_left -= n;\n    return ret;\n}']