[mythtv-users] mpeg2 playback performance issue makes no sense

[Michael J. Lynch]

Joseph A. Caputo wrote:

>On Wednesday 13 October 2004 09:50, Michael J. Lynch wrote:
>  
>
>>See comment inline below:
>>
>>    
>>
>>><jcaputo1 at comcast.net> wrote:
>>>      
>>>
>>>>On Tuesday 12 October 2004 10:27, Michael J. Lynch wrote:
>>>>        
>>>>
>>>>>Ah ha....See comment below.
>>>>>
>>>>>Joseph A. Caputo wrote:
>>>>>          
>>>>>
>>>>>>If you really want to see how Myth's internal player performs,
>>>>>>instead of trying to trick Myth into playing it as a recorded TV
>>>>>>program, simply use MythVideo ("Watch Videos").  There is a setup
>>>>>>option that lets you configure the player command to use for
>>>>>>this; apparently you have yours configured for mplayer (the
>>>>>>default, IIRC).  If you change this to "Internal", it will use
>>>>>>the internal player without the need to fool Myth.
>>>>>>            
>>>>>>
>>>>[snip]
>>>>        
>>>>
>>Ok...so I did this just this morning.  The results are:
>>    Myth Internal Player:  Processor pegged regardless of whether or
>>not deint is enabled
>>    MPlayer:                     80% Idle
>>
>>These are the same results as my "fool Myth into thinking the VOB is
>>a recording"
>>method.  Clearly there must be some major difference between how
>>Myth's internal player is
>>playing back video and how MPlayer is playing back the same video. 
>>It could be
>>configuration and/or other factors.  A while back a message was
>>posted by someone who
>>claimed that they had enabled some optimizer options when they
>>compiled one of the addon
>>modules and cpu idle time (for that module) went from %30 to %10. 
>>Could this apply here also.
>>
>>Clearly, with my internal player as it is (misconfigured or
>>whatever), I will not be able to "watch
>>live tv" using a PVR250 and will have to opt for a PVR350. 
>>But....from what appears to be objective
>>testing, I /should/ be able to use a PVR250 if I can get the internal
>>player to perform at least close to
>>the level of performance of MPlayer.  So...does anyone have any ideas
>>on whaat playback configuration
>>items I could play around with to see if I can get some processor
>>back? I've don't use any filters and
>>I have already tried disabling deint.  Suprisingly though, disabling
>>deint had almost zero effect on
>>processor idle time.  That is very curious to me.
>>    
>>
>
>You still haven't provided any useful output from mythfrontend that 
>could help explain why you're seeing this.
>  
>
I'll get this info for both mythfrontend and mplayer and post the info.  
I won't
have it available until at least tomorrow.

>  
>
>>Just out of curiosity, is there a way to make the frontend use
>>MPlayer instead of it's internal player when
>>playing back recordings or watching live TV?  
>>    
>>
>
>No.
>
>-JAC
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>  
>

-- 
Michael J. Lynch

What if the hokey pokey IS what it's all about -- author unknown