[streaming] Re: Streaming MPEG2 from Hauppauge PVR150 using VLC for Windows?

[list at scttransport.dk]

Hi Henrik

I think this might be because u are using the pvr150 which is a quite newer
product than the bigger and older models pvr250 and pvr350 most vlc users
have reported in about. I use the pvr350 at work and I can stream mpeg2 off
the device without transcoding. On the other hand I am 95% sure that when I
tested the card extensively in many different apps I could NOT use it as a
normal capture device with generic applications. This was simply because
such a driver is not provided by Hauppauge. I know graphedit too, I cant
remember what the specific name that shows up in the video device list in
the directshow dialog in vlc is, but I am pretty sure it’s the one that
corresponds to mpeg-2, without being certain I thought thaty the capture
"element" had its output "fed" into the encoder "element" atleast I think
hats how I build some of my graphs in graphedit when I was testing.

I can get you the name that appears on my system on Tuesday when im at work,
and confirm tha ti can stream without transcoding.

Regards
Jonas Larsen

> -----Original Message-----
> From: streaming-bounce at videolan.org [mailto:streaming-bounce at videolan.org]
> On Behalf Of Henrik Kjær Nielsen
> Sent: 11. juni 2005 10:53
> To: streaming at videolan.org
> Subject: [streaming] Re: Streaming MPEG2 from Hauppauge PVR150 using VLC
> for Windows?
> 
> Hi,
> 
> If I use the GUI (File, Open Capture Device) a new window is opened and I
> can choose the video and audio device names. For video I can select only
> the "Hauppauge WinTV PVR PCI II Capture" entry which corresponds to the
> raw video output (not MPEG2 encoded) on the "Hauppage WinTV PCI II
> Capture" directshow filter. Similar for audio. There is just no way to
> choose the MPEG2-encoded output which by the way is to be taken from the
> MPEG output pin on the "Hauppage WinTV PCI II Encoder" filter (I am
> referring to the directshow graphs that you  can build and test using
> GraphEdit).
> 
> So if this is not what you do to stream MPEG2 directly, what are you
> actually doing?
> 
> Thanks
> 
> Henrik
> 
> 
> -----Original Message-----
> From: streaming-bounce at videolan.org
> [mailto:streaming-bounce at videolan.org]On Behalf Of list at scttransport.dk
> Sent: Friday, June 10, 2005 6:44 PM
> To: streaming at videolan.org
> Subject: [streaming] Re: Streaming MPEG2 from Hauppauge PVR150 using VLC
> for Windows?
> 
> 
> That's not true for the 350pvr, u cant use it to capture video with in
> programs like virtualdub or other generic video capture programs. Atleast
> not as far as I know, and have tested. I am referring to the windows
> platform and directshow. You do not have to transcode the directshow
> signal
> from the pvr because its already in mpeg-2 format which the vlc server can
> just send to the clients.
> 
> I do not know a lot about how it works in linux.
> 
> Regarding mrl's u can simply use the gui dialog to generate them.
> 
> Best regards
> Jonas Larsen
> 
> > -----Original Message-----
> > From: streaming-bounce at videolan.org [mailto:streaming-
> bounce at videolan.org]
> > On Behalf Of Henrik Kjær Nielsen
> > Sent: 10. juni 2005 16:33
> > To: streaming at videolan.org
> > Subject: [streaming] Re: Streaming MPEG2 from Hauppauge PVR150 using VLC
> > for Windows?
> >
> > Hi,
> >
> > When you say that you can make VLC stream MPEG from Hauppauge 350, are
> you
> > then referring to Windows or Linux? In case it works for you in Windows,
> > how does VLC's Media Resource Locator (MRL) look like?
> >
> > Sure, the PVR cards will work as capture cards and can therefore deliver
> > raw video and audio in addition to MPEG2.
> >
> > Thanks
> >
> >
> > -----Original Message-----
> > From: streaming-bounce at videolan.org
> > [mailto:streaming-bounce at videolan.org]On Behalf Of list at scttransport.dk
> > Sent: Friday, June 10, 2005 12:13 PM
> > To: streaming at videolan.org
> > Subject: [streaming] Re: Streaming MPEG2 from Hauppauge PVR150 using VLC
> > for Windows?
> >
> >
> >
> >
> > Hi
> >
> > As far as I know you can do what u want without problems.
> >
> > I can stream mpeg-2 off of the Hauppauge pvr350 without transcoding.
> >
> > As far as I know the pvr cards cant delivber anything else than mpeg
> data,
> > so if u can read from the card it should work?
> >
> > > -----Original Message-----
> > > From: streaming-bounce at videolan.org [mailto:streaming-
> > bounce at videolan.org]
> > > On Behalf Of Henrik Kjær Nielsen
> > > Sent: 10. juni 2005 09:42
> > > To: streaming at videolan.org
> > > Subject: [streaming] Streaming MPEG2 from Hauppauge PVR150 using VLC
> for
> > > Windows?
> > >
> > > It is unclear to me if it is actually possible to stream live
> > audio/video
> > > in compressed format (MPEG2) from a Hauppauge PVR-150 encoder card
> using
> > > VLC for Windows.
> > > More specifically, I want to stream the compressed data served by the
> > > Hauppauge onboard encoder instead of having VLC transcode the raw
> > > audio/video data.
> > >
> > > The DirectShow frontend in VLC will only recognise the capture filters
> > > audio and video output pins (the "Audio Out" and "Capture" pins on the
> > > "Hauppauge WinTV PVR PCI II Capture" filter).
> > > To get access to the MPEG2 PS stream directly from the hardware
> encoder
> > it
> > > is necessary to connect to the "MPEG" output pin on the "Hauppauge
> WinTV
> > > PVR PCI II Encoder" filter. The encoder filter itself must be
> connected
> > to
> > > the capture filters "656" output pin.
> > >
> > > My question is: Is it possible to instruct VLC to include the
> "Hauppauge
> > > WinTV PVR PCI II Encoder" filter in its graph and to directly stream
> the
> > > output from the "MPEG" pin?
> > >
> > > Thanks
> > >
> > > Kind Regards
> > >
> > > Henrik
> > >
> > > --
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> >
> >
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