DVD under QNX6

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Claudio Cardozo

DVD under QNX6

Post by Claudio Cardozo » Wed May 22, 2002 11:23 pm

Hi there!

I read in www.videolan.org, that is possible run DVD under QNX. Did
anybody try it??

Claudio Cardozo
cazo@bol.com.br

Mario Charest

Re: DVD under QNX6

Post by Mario Charest » Sat May 25, 2002 7:04 pm

"Claudio Cardozo" <cazo@bol.com.br> wrote in message
news:3CEC2854.5070707@bol.com.br...
Hi there!

I read in www.videolan.org, that is possible run DVD under QNX. Did
anybody try it??
Run DVD? As in play movies or as in read file file from it. You can use
DVD
just like CD and with some DVD-RW/RAM (not sure which) you can even write to
them.

But you can't play movies, because of licensing issue QSSL is not
distributing the
MPEG2 codecs.
Claudio Cardozo
cazo@bol.com.br

Pete Eddy

Re: DVD under QNX6

Post by Pete Eddy » Fri May 31, 2002 12:25 pm

"Mario Charest" <goto@nothingness.com> wrote in message
news:acomhl$33l$1@inn.qnx.com...
Run DVD? As in play movies or as in read file file from it. You can use
DVD
just like CD and with some DVD-RW/RAM (not sure which) you can even write
to
them.
You can write them? ? ? ? ? What do you need to download to write them?
Every time I ask about writing even CD-RWs they tell me that the drivers
don't support the features needed to handle writing?!? Is this something
new? Please tell me there is a light at the end of the tunnel!
But you can't play movies, because of licensing issue QSSL is not
distributing the
MPEG2 codecs.
What about porting linux stuff? Can't you get the source for that and try
something?

Pete Eddy

Mario Charest

Re: DVD under QNX6

Post by Mario Charest » Fri May 31, 2002 1:18 pm

"Pete Eddy" <peter.w.eddy@lmco.com> wrote in message
news:ad7oq7$85t$1@inn.qnx.com...
"Mario Charest" <goto@nothingness.com> wrote in message
news:acomhl$33l$1@inn.qnx.com...
Run DVD? As in play movies or as in read file file from it. You can
use
DVD
just like CD and with some DVD-RW/RAM (not sure which) you can even
write
to
them.
You can write them? ? ? ? ? What do you need to download to write them?
Nothing
Every time I ask about writing even CD-RWs they tell me that the drivers
don't support the features needed to handle writing?!?
CD-RW and DVD-RAM are not handle the same way ;-)

I'm not sure if it's DVD-RW or DVD-RAM that will work. The idea is
the DVD writel handles the writing on its own, just like a HD, there is no
need for special software.
Is this something new?
No, Igor has been doing this for a while, maybe I will drop in
to add some precisious (maybe their are caveat)
Please tell me there is a light at the end of the tunnel!
Well it depends on your requirement ;-)

But you can't play movies, because of licensing issue QSSL is not
distributing the
MPEG2 codecs.

What about porting linux stuff? Can't you get the source for that and try
something?

Pete Eddy

Mario Charest

Re: DVD under QNX6

Post by Mario Charest » Fri May 31, 2002 2:18 pm

Is this something new?

No, Igor has been doing this for a while, maybe I will drop in
to add some precisious (maybe their are caveat)
No, Igor has been doing this for a while, maybe *he* will drop in
to add some precisions (maybe *there* are caveat)

Igor Kovalenko

Re: DVD under QNX6

Post by Igor Kovalenko » Fri May 31, 2002 10:56 pm

No caveats, DVD-RAM is essentially a huge floppy disk, from OS/software
point of view. Well, as long as OS is smart enough to figure what media you
have in drive (writeable or not) and does not just treat them all like CD -
*most* OSes can't do that without special drivers, even WinXP only supports
2 models. But QNX6 has this functionality, because Motorola needed it at one
point :)

You can initialize DVD-RAM with any kind of filesystem you have support for,
such as QNX or FAT32, mount and access in the same way as floppy.
Optionally, you can even create partition table (so the device is more like
hard drive or magneto-optical drive than floppy). You can also write to raw
device, using any utility like dd or cp.

Speed won't be fast if you use filesystem, because DVD-RAMs have poor seek
time specs. One drive currently on market seems to have much better seek
time than others - Panasonic LF-D311/321, so I'd suggest that one.

Note, none of other DVD formats (R/W, +RW, +MRW, -R, +R) are supported. I
don't even know why they keep being developed - once all DVD players can
read DVD-RAM (some already can) they all won't make much sense.

- igor

"Mario Charest" <postmaster@l127.0.0.1> wrote in message
news:ad7vue$d2b$1@inn.qnx.com...
Is this something new?

No, Igor has been doing this for a while, maybe I will drop in
to add some precisious (maybe their are caveat)

No, Igor has been doing this for a while, maybe *he* will drop in
to add some precisions (maybe *there* are caveat)


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