[mythtv-users] CPU for spftware MPEG-4 encoding

David Blackwell schmots at gmail.com
Wed Apr 6 13:48:29 UTC 2005


On Apr 6, 2005 9:44 AM, Mark Cooke <mpc at jts.homeip.net> wrote:
> *grrr for top posting*
> 
> The PVR250/350 is MPEG2, not MPEG4 as the poster asked.
> 
> I transcode from an MPEG2 PVR250 stream at 4mbit/sec, 720x576 to MPEG4
> 1000kbit/sec 360x288 on my system, and it seems to do about 20 frames
> per second.
> 
> This is a P4-2GHz.
> 
> Playback of the resulting file uses around 20-30%
> 
> So it is my experience that transcoding is not realtime on my PC, but
> playback is.  Recording from raw frames to MPEG4 might be easier on the
> PC than transcoding.
> 
> HTH
> 
> Mark
> 
> On Wed, 2005-04-06 at 15:34 +0200, Morten Rønseth wrote:
> > But a PVR-350 both encodes & decodes in hardware...
> >
> >
> > Cheers,
> >
> >
> > -Morten
> >
> > David Blackwell wrote:
> > > Using a pvr-350 I am running livetv with recording on a p2 400 with
> > > 256 megs of ram
> > >
> > > David
> > >
> > > On Apr 6, 2005 9:24 AM, Chris Picton <chrisp at tangent.co.za> wrote:
> > > > Quick question
> > > >
> > > > What are the minimum CPU requirements for live tv MPEG4 encoding.
> > > >
> > > > Or rather, who has the slowest system, running mpeg-4 encoding and
> > > > decoding in software.
> > > >
> > > > --
> > > > Chris Picton <chrisp at tangent.co.za>
> > > >
> > > >
> > > > _______________________________________________
> > > > mythtv-users mailing list
> > > > mythtv-users at mythtv.org
> > > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> > > >
> > > >
> > > >
> > >
> > >
> >
> > --
> > -------------------------------------------------------------------
> > WEB-fx
> > Morten Lerskau Rønseth           http://www.webfx.no
> > Odinsvei 15c                     mailto:morten at webfx.no
> > 1413 Tårnåsen                    Tlf.: (47) 6680 9191
> > Norway                           Mob : (47) 9343 4357
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> --
> Mark Cooke <mpc at jts.homeip.net>
> 
> 
> _______________________________________________
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> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 
> 
> 
Bottom post :-)
so he did.. Sorry I read and replied so fast.
David

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