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

Corey Hickey bugfood-ml at fatooh.org
Wed Dec 14 23:04:18 CET 2005

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.


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

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

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



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