libavcodec/atrac3plus.c:1012: error: Integer Overflow L2
  ([1, +oo] - 3):unsigned32 by call to `bitstream_read`.

libavcodec/atrac3plus.c:1012:26: Call
1010.         } else { /* shorter delta to min */
1011.             delta_bits = bitstream_read(bc, 2);
1012.             min_val    = bitstream_read(bc, 3);
                               ^
1013. 
1014.             for (i = 0; i < coded_subbands; i++) {

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] - 3):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_npoints(BitstreamContext *bc, Atrac3pChanUnitCtx *ctx,\n                                int ch_num, int coded_subbands)\n{\n    int i, delta, delta_bits, min_val;\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 (i = 0; i < coded_subbands; i++)\n            chan->gain_data[i].num_points = bitstream_read(bc, 3);\n        break;\n    case 1:\n        for (i = 0; i < coded_subbands; i++)\n            chan->gain_data[i].num_points =\n                bitstream_read_vlc(bc, gain_vlc_tabs[0].table,\n                                   gain_vlc_tabs[0].bits, 1);\n        break;\n    case 2:\n        if (ch_num) {\n            for (i = 0; i < coded_subbands; i++) {\n                delta = bitstream_read_vlc(bc, gain_vlc_tabs[1].table,\n                                           gain_vlc_tabs[1].bits, 1);\n                chan->gain_data[i].num_points =\n                    (ref_chan->gain_data[i].num_points + delta) & 7;\n            }\n        } else {\n            chan->gain_data[0].num_points =\n                bitstream_read_vlc(bc, gain_vlc_tabs[0].table,\n                                   gain_vlc_tabs[0].bits, 1);\n            for (i = 1; i < coded_subbands; i++) {\n                delta = bitstream_read_vlc(bc, gain_vlc_tabs[1].table,\n                                           gain_vlc_tabs[1].bits, 1);\n                chan->gain_data[i].num_points =\n                    (chan->gain_data[i - 1].num_points + delta) & 7;\n            }\n        }\n        break;\n    case 3:\n        if (ch_num) {\n            for (i = 0; i < coded_subbands; i++)\n                chan->gain_data[i].num_points =\n                    ref_chan->gain_data[i].num_points;\n        } else {\n            delta_bits = bitstream_read(bc, 2);\n            min_val    = bitstream_read(bc, 3);\n            for (i = 0; i < coded_subbands; i++) {\n                chan->gain_data[i].num_points = min_val + bitstream_read(bc, delta_bits);\n                if (chan->gain_data[i].num_points > 7)\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}']