[MPlayer-DOCS] CVS: main/DOCS/man/en mplayer.1,1.1170,1.1171

[Rich Felker]

On Wed, Dec 14, 2005 at 02:04:18PM -0800, Corey Hickey wrote:
> Rich Felker wrote:
> >>>>>>mplayer /dev/hda -demuxer rawvideo -rawvideo fps=10:w=640:h=480 -fs
> >>>>>
> >>>>>It's amazing how much green I get. I'd think it'd be the random noise most of
> >>>>>the time :-)
> >>>>
> >>>>Actually, I was amazed at the total opposite, I got too much random noise, 
> >>>>I was expecting green.
> >>>
> >>>
> >>>I'm jealous of you guys right now, all I get is
> >>>
> >>>File not found: '/dev/hda4'
> >>>Failed to open /dev/hda4
> >>
> >>If /dev/hda4 actually exists on your system, then the error message is
> >>erroneous: it's a permissions issue. Try it as root, or grant your
> >>normal user read access to the device.
> > 
> > 
> > I know Diego isn't stupid enough to do this, but please never
> > recommend something as idiotic as changing permissions on /dev/hda*.
> > Some luser might actually do it....
> 
> :)
> 
> I didn't mean on a permanent basis. Besides, with a reasonable amount of
> paranoia, I'd rather do stuff like this as a user without write
> permissions to the device, so that means either temporarily removing
> write permissions from root or temporarily granting read permissions to
> my normal user.

giving user read permissions to hda is the same as giving the user
root. read hda = read /etc/shadow = have root after a few hours of
running john...

> <don't-actually-do-any-of-this>
> <really-don't-do-any-of-this>
> 
> Now, everybody, try these!
> 
> * A new way to copy a hard disk.
> mplayer /dev/hda -dumpstream -dumpfile /dev/hdb
> 
> * Filesystem defragmentation.
> mplayer /dev/hda1 -dumpstream -dumpfile /dev/hda1

WTF?? this doesn't defragment anything.

> * Correct a/v sync of _all_ your movies.
> mencoder /dev/hda -ovc copy -oac copy -delay 0.2 -o /dev/hda

LOL :))))

> * Compress your filesystem.
> mencoder /dev/hda1 -nosound -ovc lavc -lavcopts vcodec=ffv1 -o /dev/hda1

:))))))))

Rich