[gst-devel] Support for Plextor ConvertX PX-TV402U/PX-M402U

[Charlie Liu]

I tried long time ago and posted to v4l-list. If you are interested in, I
may re-build it again and get the build log posted. Thanks for the info.

-- Charlie X. Liu


-----Original Message-----
From: gstreamer-devel-bounces at lists.sourceforge.net
[mailto:gstreamer-devel-bounces at lists.sourceforge.net]On Behalf Of
Fredrik Persson
Sent: Wednesday, October 11, 2006 10:48 AM
To: Charlie Liu
Cc: gstreamer-devel at lists.sourceforge.net
Subject: Re: [gst-devel] Support for Plextor ConvertX PX-TV402U/PX-M402U


I have not myself used the patches I was talking about, since they were
only needed for kernel version 2.6.17 and above. I don't think they had
anything to do with SAA7134 though.

I don't have a PCI card, I have a Plextor USB device, so I cannot help
with any particular PCI-specific problem.

But you said you had build problems, please post the build log.

/Fredrik Persson

On Wed, 2006-10-11 at 10:44 -0700, Charlie Liu wrote:
> The patches for SAA7134 didn't work, since I was using a PCI-based
GO7007SB
> board, Sensoray Model 314. I didn't try the oss for a USB-based capture
box,
> like Plextor ConvertX PX-TV402U/PX-M402U or Sensoray Model 2250. Are some
> patches needed too? Where can you get them?
>
> -- Charlie X. Liu
>
> -----Original Message-----
> From: gstreamer-devel-bounces at lists.sourceforge.net
> [mailto:gstreamer-devel-bounces at lists.sourceforge.net]On Behalf Of
> Fredrik Persson
> Sent: Wednesday, October 11, 2006 9:26 AM
> To: Charlie Liu
> Cc: gstreamer-devel at lists.sourceforge.net
> Subject: Re: [gst-devel] Support for Plextor ConvertX PX-TV402U/PX-M402U
>
>
> I am running Ubuntu 6.06, and my uname -a says this:
>
> Linux lovin 2.6.15-27-386 #1 PREEMPT Sat Sep 16 01:51:59 UTC 2006 i686
> GNU/Linux
>
> What kind of build problems did you have? The module should, as I
> understand, build cleanly against 2.6.16. 2.6.17 and later requires
> patches, though.
>
> /Fredrik Persson
>
> On Wed, 2006-10-11 at 09:21 -0700, Charlie Liu wrote:
> > Which version of Ubuntu and which version of kernel are you using? I had
> > problem with compiling and building wis-go7007-linux-0.9.7.tar.bz2 and
> > wis-go7007-linux-0.9.8.tar.bz2 on FC4 with 2.6.11 and 2.6.16. Thanks.
> >
> > Charlie X. Liu
> > @ http://www.sensoray.com
> >
> >
> > -----Original Message-----
> > From: gstreamer-devel-bounces at lists.sourceforge.net
> > [mailto:gstreamer-devel-bounces at lists.sourceforge.net]On Behalf Of
> > Fredrik Persson
> > Sent: Tuesday, October 10, 2006 10:41 AM
> > To: gstreamer-devel at lists.sourceforge.net
> > Subject: [gst-devel] Support for Plextor ConvertX PX-TV402U/PX-M402U
> >
> >
> > The Plextor ConvertX PX-TV402U/PX-M402U is a very neat USB2.0 device
> > with hardware support for MPEG1, MPEG2, MPEG4 and MJPEG compression. I
> > fell in love with this device in 10 seconds! On-the-fly MPEG4
> > compression of full-blown PAL, 720x576 at 25fps, in full color depth, with
> > great result, is awesome.
> >
> > Now, this device is a v4l2 device, and as such, should be handled by the
> > v4l2src element. It implements all the functions a v4l2 device needs to
> > implement, the driver is provided by Plextor and can be found here:
> >
> > http://oss.wischip.com/
> >
> > On my Ubuntu machine, I can confirm that the driver and the device works
> > flawlessly with the provided command-line test-app from plextor,
> > "gorecord".
> >
> > With gstreamer I was not so lucky. At one point, I managed to have it
> > display video with the cvs version of v4l2src using its built-in MJPEG
> > compression. Most of the time, though, I got a message "input/output
> > error" and if I tried to run gstreamer with it again, my computer
> > hangs.
> >
> > So, I am willing to invest some work in having this thing run under
> > gstreamer, but I need help from the people who generally maintains the
> > v4l2src code.
> >
> > Please, download the driver source code from the link provided above.
> > Take a look in the README, where the non-v4l2 stuff is documented. Also,
> > have a look in the go7007.h header file where it is... also documented.
> > Is this doable, can gstreamer support this? Also, what kind of work is
> > involved? Any pointers would be greatly appreciated.
> >
> > >From what I can see, it is the special compression settings that needs
> > to be supported. v4l2 device normally don't have those. We need to be
> > able to tell the device what compression to use and with what
> > parameters. After that, I assume, the v4l2src should be able to read
> > frames just as from any other v4l2 device, and feed them into a
> > pipeline. Probably right into a decodebin, of course.
> >
> > /Fredrik Persson
> >
>
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