Text 4758, 72 rader
Skriven 2005-12-25 02:49:16 av Maurice Kinal (1:261/38.9)
   Kommentar till text 4756 av Kenneth Parrish (8:8/2)
Ärende: Re: audio/video capture
===============================
Hey Kenneth!

Dec 24 18:29 05, Kenneth Parrish wrote to Maurice Kinal:

 KP> Ok, will check it out. I've noticed there are lightweight versions of 
 KP> some of these more recent interactive protocols, including a minimal 
 KP> tcp designed to share small amounts of data interactively as these 
 KP> do.

Sounds interesting.  I will have to check that out myself.  The network here
doesn't require anything too heavyweight.  Perhaps something along the lines of
what you are talking about would get more 'airtime' then the stuff I've
recently encountered.

 KP> Ah. Did you say somewhere they're mpeg-2 video, or was it mpeg-4?

2.  I do have the Xvid libs which report they are 4 capable but have yet to
take them out for a test cruise.  I still need to check some of mplayer's
capabilties especially 'mencoder' to do reformatting and compare that to
'transcode' ... perhaps even a few others that I am not aware of as we speak. 
Not being much of a movie buff this might be awhile before I get around to it.

 KP> was quite amazed at the quality of the hardware scaling this Rage 3D 
 KP> Pro ATI card offered, when I had it working briefly about a year and 
 KP> half back, and have sometimes wondered if the facility could be used 
 KP> somehow by various picture displa software such as fbi, imagemagick, 
 KP> gqview, gimv, qiv, feh, sinch it is evidently fast enough to do more 
 KP> than 30 fps with some main cpu load.

For sure.  I'd certainly like to hear your thoughts on the matter.  I noticed
quite a few radeon specific patches in the kernel but not much generic ati or
rage stuff.  As far as the matroxes around here go they always seem to work
despite a few minor problems.  I noticed improvement in a G400 lately including
second head support for tv-out.  I finally managed to get that working not too
shabbily but to be honest I prefer the WinTV with a matrox g200 (no second head
on any of those except a wierd DVI on a HP visualize g200 based agp card).

 KP> I've been using madplay for some mp3 audio files I have here.

That works good here.

 KP> After experimenting with compiling libmadplay with different options, 
 KP> it seems the flags to disable architecture specific optimizations and 
 KP> to enable the 64 bit non-assembly discrete cosine transform give the 
 KP> best sound quality,

Cool!  Tell me more.

 KP> and with gcc 3.4.5,

I have that onboard with gcc 4.0.2 for comparitive purposes.  So far I get
mixed results depending on the source and the application.

 KP> to which I've added a small 
 KP> tweak to use the conditional move instruction available on this 
 KP> computer's cpu, the stepping 4 cyrix mii of '99, a 160 KiB/s mp3 will 
 KP> play at about 28-30% cpu (mii at 2 x 100 MHz) and sounds good for 
 KP> mpeg. If these had been done at a comparable bitrate with ogg vorbis 
 KP> they'd probably be even more listenable. And there's hope of adding a 
 KP> wave-based compression technique to help the transient-response 
 KP> problem.

I think I'd rather create my own then jump through all those hoops fixing
other's work.  Also thinking at finding a decent preamp for a turntable now
that I see the cassette tape is working so well with the scheme here.  Might be
some fun in that.

Life is good,
Maurice

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