구차니의 잡동사니 모음

According to http://comments.gmane.org/gmane.linux.drivers.video-input-infrastructure/39892 some v4l2 drivers (including the UVC one) do not use the realtime clock (wall time) but rather a monotonic clock that counts from a not specified point in time. On Linux, this is the boot time (i.e. uptime), however (and I suspect this is the cause of your mismatch) only the time that the computer was actually running (i.e. this clock does not run when the computer is suspended). 

typedef long clock_t;

#define CLOCKS_PER_SEC  1000 

_Check_return_ _CRTIMP clock_t __cdecl clock(void);

       --load-cookies file

           Load cookies from file before the first HTTP retrieval.  file is a

           textual file in the format originally used by Netscape's

           cookies.txt file.

           When specified, causes --save-cookies to also save session cookies.

           Session cookies are normally not saved because they are meant to be

           kept in memory and forgotten when you exit the browser.  Saving

           them is useful on sites that require you to log in or to visit the

           home page before you can access some pages.  With this option,

           multiple Wget runs are considered a single browser session as far

           as the site is concerned.

           Since the cookie file format does not normally carry session

           cookies, Wget marks them with an expiry timestamp of 0.  Wget's

           --load-cookies recognizes those as session cookies, but it might

           confuse other browsers.  Also note that cookies so loaded will be

           treated as other session cookies, which means that if you want

           --save-cookies to preserve them again, you must use

           --keep-session-cookies again. 

       --user=user

       --password=password

           Specify the username user and password password for both FTP and

           HTTP file retrieval.  These parameters can be overridden using the

           --ftp-user and --ftp-password options for FTP connections and the

           --http-user and --http-password options for HTTP connections.