libavcodec/clearvideo.c:232: error: Integer Overflow L2
  ([0, max(64, `c->bc.bits_left`)] - 1):unsigned32 by call to `bitstream_read_bit`.

libavcodec/clearvideo.c:227:1: Parameter `c->bc.bits_left`
225. }
226. 
227. static int decode_mb(CLVContext *c, int x, int y)
     ^
228. {
229.     int i, has_ac[6], off;

libavcodec/clearvideo.c:232:21: Call
230. 
231.     for (i = 0; i < 6; i++)
232.         has_ac[i] = bitstream_read_bit(&c->bc);
                         ^
233. 
234.     off = x * 16 + y * 16 * c->pic->linesize[0];

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, max(64, c->bc.bits_left)] - 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_mb(CLVContext *c, int x, int y)\n{\n    int i, has_ac[6], off;\n    for (i = 0; i < 6; i++)\n        has_ac[i] = bitstream_read_bit(&c->bc);\n    off = x * 16 + y * 16 * c->pic->linesize[0];\n    for (i = 0; i < 4; i++) {\n        if (decode_block(c, c->block, has_ac[i], c->ac_quant) < 0)\n            return AVERROR_INVALIDDATA;\n        if (!x && !(i & 1)) {\n            c->block[0] += c->top_dc[0];\n            c->top_dc[0] = c->block[0];\n        } else {\n            c->block[0] += c->left_dc[(i & 2) >> 1];\n        }\n        c->left_dc[(i & 2) >> 1] = c->block[0];\n        c->block[0]             *= c->luma_dc_quant;\n        clv_dct(c->block);\n        if (i == 2)\n            off += c->pic->linesize[0] * 8;\n        c->idsp.put_pixels_clamped(c->block,\n                                   c->pic->data[0] + off + (i & 1) * 8,\n                                   c->pic->linesize[0]);\n    }\n    off = x * 8 + y * 8 * c->pic->linesize[1];\n    for (i = 1; i < 3; i++) {\n        if (decode_block(c, c->block, has_ac[i + 3], c->ac_quant) < 0)\n            return AVERROR_INVALIDDATA;\n        if (!x) {\n            c->block[0] += c->top_dc[i];\n            c->top_dc[i] = c->block[0];\n        } else {\n            c->block[0] += c->left_dc[i + 1];\n        }\n        c->left_dc[i + 1] = c->block[0];\n        c->block[0]      *= c->chroma_dc_quant;\n        clv_dct(c->block);\n        c->idsp.put_pixels_clamped(c->block, c->pic->data[i] + off,\n                                   c->pic->linesize[i]);\n    }\n    return 0;\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}']