libavcodec/vp9_raw_reorder_bsf.c:162: error: Integer Overflow L2
  ([1, +oo] - 8):unsigned32 by call to `bitstream_read`.

libavcodec/vp9_raw_reorder_bsf.c:162:42: Call
160.                 }
161.             }
162.             frame->refresh_frame_flags = bitstream_read(&bc, 8);
                                              ^
163.         } else {
164.             frame->refresh_frame_flags = bitstream_read(&bc, 8);

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] - 8):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 vp9_raw_reorder_frame_parse(AVBSFContext *bsf, VP9RawReorderFrame *frame)\n{\n    BitstreamContext bc;\n    int err;\n    unsigned int frame_marker;\n    unsigned int profile_low_bit, profile_high_bit, reserved_zero;\n    unsigned int error_resilient_mode;\n    unsigned int frame_sync_code;\n    err = bitstream_init8(&bc, frame->packet->data, frame->packet->size);\n    if (err)\n        return err;\n    frame_marker = bitstream_read(&bc, 2);\n    if (frame_marker != 2) {\n        av_log(bsf, AV_LOG_ERROR, "Invalid frame marker: %u.\\n",\n               frame_marker);\n        return AVERROR_INVALIDDATA;\n    }\n    profile_low_bit  = bitstream_read_bit(&bc);\n    profile_high_bit = bitstream_read_bit(&bc);\n    frame->profile = (profile_high_bit << 1) | profile_low_bit;\n    if (frame->profile == 3) {\n        reserved_zero = bitstream_read_bit(&bc);\n        if (reserved_zero != 0) {\n            av_log(bsf, AV_LOG_ERROR, "Profile reserved_zero bit set: "\n                   "unsupported profile or invalid bitstream.\\n");\n            return AVERROR_INVALIDDATA;\n        }\n    }\n    frame->show_existing_frame = bitstream_read_bit(&bc);\n    if (frame->show_existing_frame) {\n        frame->frame_to_show = bitstream_read(&bc, 3);\n        return 0;\n    }\n    frame->frame_type = bitstream_read_bit(&bc);\n    frame->show_frame = bitstream_read_bit(&bc);\n    error_resilient_mode = bitstream_read_bit(&bc);\n    if (frame->frame_type == 0) {\n        frame_sync_code = bitstream_read(&bc, 24);\n        if (frame_sync_code != 0x498342) {\n            av_log(bsf, AV_LOG_ERROR, "Invalid frame sync code: %06x.\\n",\n                   frame_sync_code);\n            return AVERROR_INVALIDDATA;\n        }\n        frame->refresh_frame_flags = 0xff;\n    } else {\n        unsigned int intra_only;\n        if (frame->show_frame == 0)\n            intra_only = bitstream_read_bit(&bc);\n        else\n            intra_only = 0;\n        if (error_resilient_mode == 0) {\n            bitstream_skip(&bc, 2);\n        }\n        if (intra_only) {\n            frame_sync_code = bitstream_read(&bc, 24);\n            if (frame_sync_code != 0x498342) {\n                av_log(bsf, AV_LOG_ERROR, "Invalid frame sync code: "\n                       "%06x.\\n", frame_sync_code);\n                return AVERROR_INVALIDDATA;\n            }\n            if (frame->profile > 0) {\n                unsigned int color_space;\n                if (frame->profile >= 2) {\n                    bitstream_skip(&bc, 1);\n                }\n                color_space = bitstream_read(&bc, 3);\n                if (color_space != 7  ) {\n                    bitstream_skip(&bc, 1);\n                    if (frame->profile == 1 || frame->profile == 3) {\n                        bitstream_skip(&bc, 3);\n                    }\n                } else {\n                    if (frame->profile == 1 || frame->profile == 3)\n                        bitstream_skip(&bc, 1);\n                }\n            }\n            frame->refresh_frame_flags = bitstream_read(&bc, 8);\n        } else {\n            frame->refresh_frame_flags = bitstream_read(&bc, 8);\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}']