[mythtv-users] minimum specs for PCHDTV-5500?

[Phil Bridges]

On Wed, Mar 26, 2008 at 7:52 PM, Mary Strimel <mary.strimel at gmail.com> wrote:
>
>
>
>
> On Wed, Mar 26, 2008 at 4:30 PM, Roger Heflin <rogerheflin at gmail.com> wrote:
> >
> > Phil Bridges wrote:
> > > On Wed, Mar 26, 2008 at 3:54 PM, Mary Strimel <mary.strimel at gmail.com>
> wrote:
> >
> > >>>
> >
> > >>  Thank you for the quick reply.  My machine has 1 GB of RAM.  Running
> "cat
> > >> /proc/cpu" reports an AMD Athlon64 at 800 mhz.
> > >
> > >
> > > What is the CPU description?  It should run much faster than a
> > > perceived 800Mhz; it should play HD fine.
> > > _______________________________________________
> >
> > I missed that, it would have to be in powersave mode, I did not think AMD
> ever
> > made any 64-bit processors that went that slow, except in powersave mode.
> What
> > is the full info out of "cat /proc/cpuinfo", and does it speed up when you
> are
> > trying to watch video?
> >
> >
> >
> >
> >
> >                                Roger
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
> OK, thanks for the info, this is starting to make a bit more sense now:
>
> @mythbox:~$ cat /proc/cpuinfo
> processor       : 0
> vendor_id       : AuthenticAMD
> cpu family      : 15
> model           : 4
> model name      : AMD Athlon(tm) 64 Processor 3000+
> stepping        : 8
> cpu MHz         : 800.000
>  cache size      : 512 KB
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 1
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm 3dnowext 3dnow
> up
>  bogomips        : 1601.72
> TLB size        : 1024 4K pages
> clflush size    : 64
> cache_alignment : 64
> address sizes   : 40 bits physical, 48 bits virtual
> power management: ts fid vid ttp
>
> And when I play my HD test file, the CPU Mhz goes up to 2000.000.  So I
> guess that means my machine is capable of 2 Ghz.
>
> So, this machine "should" be able to display 720p using xvmc and bob
> de-interlacing, if I am reading the chart on the wiki correctly (thank you
> to the person who pointed me to that)!
>
> But, I am stll confused as to why it  won't play the output from the HDTV
> card.  It looks like my HD test file, which as I mentioned plays
> beautifully, is 1080 (again, assuming I'm interpreting this right).  Here is
> the relevant-looking part of what mplayer says when I play it:
>
> Playing Elephants_Dream_HD.avi.
> AVI file format detected.
> AVI: ODML: Building ODML index (2 superindexchunks).
> VIDEO:  [MP42]  1920x1080  24bpp  24.000 fps  10001.5 kbps (1220.9 kbyte/s)
> Clip info:
>  Software: AVI-Mux GUI 1.17.5, Apr  5 2006  18:41:17
>  xscreensaver_disable: Could not find XScreenSaver window.
> GNOME screensaver disabled
> ==========================================================================
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>  Selected video codec: [ffmp42] vfm: ffmpeg (FFmpeg M$ MPEG-4 v2)
> ==========================================================================
> ==========================================================================
>  Forced audio codec: mad
> Opening audio decoder: [liba52] AC3 decoding with liba52
> Using SSE optimized IMDCT transform
> Using MMX optimized resampler
> AUDIO: 48000 Hz, 2 ch, s16le, 448.0 kbit/29.17% (ratio: 56000->192000)
>  Selected audio codec: [a52] afm: liba52 (AC3-liba52)
> ==========================================================================
> AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
> Starting playback...
> VDec: vo config request - 1920 x 1080 (preferred colorspace: Planar YV12)
>  VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is undefined - no prescaling applied.
> VO: [xv] 1920x1080 => 1920x1080 Planar YV12
> aspect: Warning: no suitable new res found!
>
> So why does mplayer do great with this, but Myth croaks on the QAM feed?
>
> Thanks again, in advance,
> Mary
>

You may want to search the list archives or wiki for "playback
profiles" - there is a lot of tweakable stuff in there that you will
need to adjust.