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<DIV><FONT face=Arial size=2>Hello john, that is weird because i've have no
issues with hdtv+mplayer+2400 amd xp.</FONT></DIV>
<DIV><FONT face=Arial size=2>I noticed that yes when cameras panned or whatever
it got a bit jumpy, But that wasn't a cpu issue it was a interlaced video issue,
and applying the ,</FONT></DIV>
<DIV><FONT face=Arial size=2>video=dfmbga:fiedlparity=top switch fixed that
issue for me.</FONT></DIV>
<DIV><FONT face=Arial size=2>I would imagine that running something alot slower
then the xp2400 would be fine, As top shows only 9-12% uterlisation when
watching HDTV.</FONT></DIV>
<DIV><FONT face=Arial size=2>But then again that is over directfb(without
X).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=john@BlueSkyTours.com href="mailto:john@BlueSkyTours.com">John
Patrick Poet</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=mythtv-users@mythtv.org
href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, April 28, 2004 11:18
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [mythtv-users] HDTV/CPU
survey</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have seen a few people with
Pentium4 processor report that they are happy with the playback of HDTV
material.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I, however, have not seen a single
“success” report from an <SPAN class=SpellE>Athlon</SPAN>
user.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Is anyone getting acceptable HDTV
playback under Myth, with an <SPAN class=SpellE>Athlon</SPAN> processor? <SPAN
style="mso-spacerun: yes"> </SPAN>If so, what speed,
etc?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am personally using a 2.6 GHz
Pentium4, <SPAN class=SpellE>overclocked</SPAN> to 2.8GHz.<SPAN
style="mso-spacerun: yes"> </SPAN><SPAN
class=SpellE>HyperThreading</SPAN> is enabled, and I have dual channel 433 MHz
memory.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">With this system, HDTV playback is
pretty good.<SPAN style="mso-spacerun: yes"> </SPAN>Not perfect, but
very <SPAN class=SpellE>watchable</SPAN>.<SPAN
style="mso-spacerun: yes"> </SPAN>The only time I noticed that my
machine cannot keep up, is on *<B><SPAN
style="FONT-WEIGHT: bold">some</SPAN></B>* camera pans.<SPAN
style="mso-spacerun: yes"> </SPAN>In those situation, I do get some
*<B><SPAN style="FONT-WEIGHT: bold">minor</SPAN></B>* pause/skip/pause/skip
type <SPAN class=SpellE>studdering</SPAN>.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I have <SPAN
class=SpellE>XvMC</SPAN> disabled.<SPAN style="mso-spacerun: yes">
</SPAN>Enabling it results in very <SPAN class=SpellE>jurky</SPAN> playback of
any OSD, and does not seem to improve the playback of the
video.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">For those stations broadcasting in
1080i, enabling a <SPAN class=SpellE>deinterlacer</SPAN> is a must.<SPAN
style="mso-spacerun: yes"> </SPAN><SPAN class=GramE>A <SPAN
class=SpellE>deinterlacer</SPAN>, of course, make</SPAN> no difference for the
720p stations.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Experimental A/V sync does not
seem to make any difference for me. <SPAN
style="mso-spacerun: yes"> </SPAN>I am using <SPAN
class=SpellE>nVidia’s</SPAN> 5336 driver, so maybe Experimental A/V sync does
not work.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Extra audio buffering is required
to keep the sound from <SPAN
class=SpellE>studdering</SPAN>.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If I enable “use video as <SPAN
class=SpellE>timebase</SPAN>”, I do not get any audio, and the video looks
like it is running at about 90% of full speed. <SPAN
style="mso-spacerun: yes"> </SPAN>This would indicate to me that my
machine cannot keep up with HD streams, and yet <SPAN
class=SpellE>gkrellm</SPAN> never shows my CPU above 65%. <SPAN
style="mso-spacerun: yes"> </SPAN>My system “load” and disk activity also
remain low.<SPAN style="mso-spacerun: yes"> </SPAN>This all make me very
curious as to why the HD stream cannot be played at full speed without any
frame skipping.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am planning on eventually
building a dedicated Myth <SPAN class=SpellE>frontend</SPAN>. <SPAN
style="mso-spacerun: yes"> </SPAN>The reason for this survey is to help
me decide what hardware to go with.<SPAN style="mso-spacerun: yes">
</SPAN>I am somewhat tempted to give an <SPAN class=SpellE>Athlon</SPAN> a try
if someone can indicate how well they work with HD material. <SPAN
style="mso-spacerun: yes"> </SPAN>Anyone tried an
Athlon64?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">John<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P></DIV>
<P>
<HR>
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