libavcodec/atrac3.c:274: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `bitstream_read_bit`.

libavcodec/atrac3.c:273:20: Call
271.     float scale_factor;
272. 
273.     num_subbands = bitstream_read(bc, 5);   // number of coded subbands
                        ^
274.     coding_mode  = bitstream_read_bit(bc);  // coding Mode: 0 - VLC/ 1 - CLC
275. 

libavcodec/bitstream.h:183:1: Parameter `bc->bits_left`
  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/atrac3.c:274:20: Call
272. 
273.     num_subbands = bitstream_read(bc, 5);   // number of coded subbands
274.     coding_mode  = bitstream_read_bit(bc);  // coding Mode: 0 - VLC/ 1 - CLC
                        ^
275. 
276.     /* get the VLC selector table for the subbands, 0 means not coded */

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 int decode_spectrum(BitstreamContext *bc, float *output)\n{\n    int num_subbands, coding_mode, i, j, first, last, subband_size;\n    int subband_vlc_index[32], sf_index[32];\n    int mantissas[128];\n    float scale_factor;\n    num_subbands = bitstream_read(bc, 5);\n    coding_mode  = bitstream_read_bit(bc);\n    for (i = 0; i <= num_subbands; i++)\n        subband_vlc_index[i] = bitstream_read(bc, 3);\n    for (i = 0; i <= num_subbands; i++) {\n        if (subband_vlc_index[i] != 0)\n            sf_index[i] = bitstream_read(bc, 6);\n    }\n    for (i = 0; i <= num_subbands; i++) {\n        first = subband_tab[i    ];\n        last  = subband_tab[i + 1];\n        subband_size = last - first;\n        if (subband_vlc_index[i] != 0) {\n            read_quant_spectral_coeffs(bc, subband_vlc_index[i], coding_mode,\n                                       mantissas, subband_size);\n            scale_factor = ff_atrac_sf_table[sf_index[i]] *\n                           inv_max_quant[subband_vlc_index[i]];\n            for (j = 0; first < last; first++, j++)\n                output[first] = mantissas[j] * scale_factor;\n        } else {\n            memset(output + first, 0, subband_size * sizeof(*output));\n        }\n    }\n    first = subband_tab[i];\n    memset(output + first, 0, (SAMPLES_PER_FRAME - first) * sizeof(*output));\n    return num_subbands;\n}', 'static inline uint32_t bitstream_read(BitstreamContext *bc, unsigned n)\n{\n    if (!n)\n        return 0;\n    if (n > bc->bits_left) {\n        refill_32(bc);\n        if (bc->bits_left < 32)\n            bc->bits_left = n;\n    }\n    return get_val(bc, 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}']