System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at osudata.Libraries.FFmpeg.FFmpeg.avcodec_decode_video(IntPtr pAVCodecContext, IntPtr pAVFrame, Int32& got_picture_ptr, IntPtr buf, Int32 buf_size)
   at osudata.Libraries.FFmpeg.VideoDecoder.Decode()