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List: mythtv-users
Subject: Re: [mythtv-users] Any way to increase speed of encoding ? (involves
From: Lane Schwartz <dowobeha () gmail ! com>
Date: 2004-11-30 22:05:30
Message-ID: 683722d00411301405e9a9cb3 () mail ! gmail ! com
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On Tue, 30 Nov 2004 09:47:40 -0000, VJ <vj@vijaygill.homelinux.net> wrote:
> Hi
> I use my own scripts encode recorded programs using mythtranscode +
> mencoder. I have seen that mencoder encodes mpeg2 files at about 26FPS if
> the source is fifo's created by mythtranscode, and the speed increases to
> 45FPS+ if mencoder is working on the file directly. So I assume that either
> mythtranscode is not spewing out data as fast as mencoder compresses it OR
> mencoder is efficient to work with fifo's. Or could it be colour-space
> related thing? According to my limited knowledge, colourspace conversions
> also take a lot of time and MAY be mencoder first does that to the data read
> from fifo's and then encodes the frames.
>
> Can anybody shed some light on this? And also any suggestions are welcome.
>
> I am using FC3 with MythTV and IVTV driver compiled by myself only. I do not
> have nuvexport kind of utilities and I am unwilling to install those unless
> direly necessary (my last resort will be to use mpeg2mpeg cutting facility
> of nuvexport to get an mpeg2 file what I will use with mencoder to encode).
Are you starting with MPEG2 files?
--
"No, we've had no evidence that Saddam Hussein was involved in 9/11."
-- George W. Bush, 17 Sept 2003
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