libavcodec/atrac3plus.c:1327: error: Integer Overflow L2
  ([1, +oo] - 5):unsigned32 by call to `bitstream_read`.

libavcodec/atrac3plus.c:1327:26: Call
1325.         } else { /* shorter delta to min */
1326.             delta_bits = bitstream_read(bc, 2) + 1;
1327.             min_val    = bitstream_read(bc, 5);
                               ^
1328. 
1329.             for (sb = 0; sb < coded_subbands; sb++)

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:194:12: Call
  192.     }
  193. 
  194.     return get_val(bc, n);
                  ^
  195. }
  196. 

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: ([1, +oo] - 5):unsigned32 by call to `bitstream_read` 
    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_gainc_loc_codes(BitstreamContext *bc, Atrac3pChanUnitCtx *ctx,\n                                  int ch_num, int coded_subbands,\n                                  AVCodecContext *avctx)\n{\n    int sb, i, delta, delta_bits, min_val, pred, more_than_ref;\n    AtracGainInfo *dst, *ref;\n    VLC *tab;\n    Atrac3pChanParams *chan     = &ctx->channels[ch_num];\n    Atrac3pChanParams *ref_chan = &ctx->channels[0];\n    switch (bitstream_read(bc, 2)) {\n    case 0:\n        for (sb = 0; sb < coded_subbands; sb++)\n            for (i = 0; i < chan->gain_data[sb].num_points; i++)\n                gainc_loc_mode0(bc, ctx, &chan->gain_data[sb], i);\n        break;\n    case 1:\n        if (ch_num) {\n            for (sb = 0; sb < coded_subbands; sb++) {\n                if (chan->gain_data[sb].num_points <= 0)\n                    continue;\n                dst = &chan->gain_data[sb];\n                ref = &ref_chan->gain_data[sb];\n                delta = bitstream_read_vlc(bc, gain_vlc_tabs[10].table,\n                                           gain_vlc_tabs[10].bits, 1);\n                pred = ref->num_points > 0 ? ref->loc_code[0] : 0;\n                dst->loc_code[0] = (pred + delta) & 0x1F;\n                for (i = 1; i < dst->num_points; i++) {\n                    more_than_ref = i >= ref->num_points;\n                    if (dst->lev_code[i] > dst->lev_code[i - 1]) {\n                        if (more_than_ref) {\n                            delta =\n                                bitstream_read_vlc(bc, gain_vlc_tabs[9].table,\n                                                   gain_vlc_tabs[9].bits, 1);\n                            dst->loc_code[i] = dst->loc_code[i - 1] + delta;\n                        } else {\n                            if (bitstream_read_bit(bc))\n                                gainc_loc_mode0(bc, ctx, dst, i);\n                            else\n                                dst->loc_code[i] = ref->loc_code[i];\n                        }\n                    } else {\n                        tab   = more_than_ref ? &gain_vlc_tabs[7]\n                                              : &gain_vlc_tabs[10];\n                        delta = bitstream_read_vlc(bc, tab->table, tab->bits, 1);\n                        if (more_than_ref)\n                            dst->loc_code[i] = dst->loc_code[i - 1] + delta;\n                        else\n                            dst->loc_code[i] = (ref->loc_code[i] + delta) & 0x1F;\n                    }\n                }\n            }\n        } else\n            for (sb = 0; sb < coded_subbands; sb++)\n                gainc_loc_mode1(bc, ctx, &chan->gain_data[sb]);\n        break;\n    case 2:\n        if (ch_num) {\n            for (sb = 0; sb < coded_subbands; sb++) {\n                if (chan->gain_data[sb].num_points <= 0)\n                    continue;\n                dst = &chan->gain_data[sb];\n                ref = &ref_chan->gain_data[sb];\n                if (dst->num_points > ref->num_points || bitstream_read_bit(bc))\n                    gainc_loc_mode1(bc, ctx, dst);\n                else\n                    for (i = 0; i < chan->gain_data[sb].num_points; i++)\n                        dst->loc_code[i] = ref->loc_code[i];\n            }\n        } else {\n            for (i = 0; i < chan->gain_data[0].num_points; i++)\n                gainc_loc_mode0(bc, ctx, &chan->gain_data[0], i);\n            for (sb = 1; sb < coded_subbands; sb++) {\n                if (chan->gain_data[sb].num_points <= 0)\n                    continue;\n                dst = &chan->gain_data[sb];\n                delta = bitstream_read_vlc(bc, gain_vlc_tabs[6].table,\n                                           gain_vlc_tabs[6].bits, 1);\n                pred             = dst[-1].num_points > 0\n                                   ? dst[-1].loc_code[0] : 0;\n                dst->loc_code[0] = (pred + delta) & 0x1F;\n                for (i = 1; i < dst->num_points; i++) {\n                    more_than_ref = i >= dst[-1].num_points;\n                    tab = &gain_vlc_tabs[(dst->lev_code[i] > dst->lev_code[i - 1]) *\n                                                   2 + more_than_ref + 6];\n                    delta = bitstream_read_vlc(bc, tab->table, tab->bits, 1);\n                    if (more_than_ref)\n                        dst->loc_code[i] = dst->loc_code[i - 1] + delta;\n                    else\n                        dst->loc_code[i] = (dst[-1].loc_code[i] + delta) & 0x1F;\n                }\n            }\n        }\n        break;\n    case 3:\n        if (ch_num) {\n            for (sb = 0; sb < coded_subbands; sb++)\n                for (i = 0; i < chan->gain_data[sb].num_points; i++) {\n                    if (i >= ref_chan->gain_data[sb].num_points)\n                        gainc_loc_mode0(bc, ctx, &chan->gain_data[sb], i);\n                    else\n                        chan->gain_data[sb].loc_code[i] =\n                            ref_chan->gain_data[sb].loc_code[i];\n                }\n        } else {\n            delta_bits = bitstream_read(bc, 2) + 1;\n            min_val    = bitstream_read(bc, 5);\n            for (sb = 0; sb < coded_subbands; sb++)\n                for (i = 0; i < chan->gain_data[sb].num_points; i++)\n                    chan->gain_data[sb].loc_code[i] = min_val + i +\n                                                      bitstream_read(bc, delta_bits);\n        }\n        break;\n    }\n    for (sb = 0; sb < coded_subbands; sb++) {\n        dst = &chan->gain_data[sb];\n        for (i = 0; i < chan->gain_data[sb].num_points; i++) {\n            if (dst->loc_code[i] < 0 || dst->loc_code[i] > 31 ||\n                (i && dst->loc_code[i] <= dst->loc_code[i - 1])) {\n                av_log(avctx, AV_LOG_ERROR,\n                       "Invalid gain location: ch=%d, sb=%d, pos=%d, val=%d\\n",\n                       ch_num, sb, i, dst->loc_code[i]);\n                return AVERROR_INVALIDDATA;\n            }\n        }\n    }\n    return 0;\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 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}']