libavcodec/vp8.c:1913: error: Uninitialized Value
  The value read from curframe was never initialized.

libavcodec/vp8.c:1913:5: 
1911.     int ret, i, referenced, num_jobs;
1912.     enum AVDiscard skip_thresh;
1913.     VP8Frame *av_uninit(curframe), *prev_frame;
          ^
1914. 
1915.     if ((ret = decode_frame_header(s, avpkt->data, avpkt->size)) < 0)
