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List: mjpeg-users
Subject: Re: [Mjpeg-users] Converting vnc session to a movie file.
From: "Nagalenoj H." <nagalenoj () gmail ! com>
Date: 2010-04-26 9:24:51
Message-ID: x2wfe67a3341004260212z571e6fc2u8d96fb090c84006f () mail ! gmail ! com
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I've just summarized the usage of mjpegtools along with RfbProxy in
http://nagalenoj.blogspot.com/2010/04/rfbproxy.html
On Fri, Oct 2, 2009 at 9:35 PM, Bernhard Praschinger
<shadowlord@utanet.at>wrote:
> Hallo
>
> Nagalenoj H. wrote:
> > Mine is not dual core or more.. And that command(time with each command
> > in pipe) doesn't work. I don't how I am going to reduce the conversion
> > duration?!!!!
> If you only have one CPU/Core you don't even need mpeg2enc's -M 2
> option. The only thing that might help you than is the buffer program
> for buffering the I/O. The mjpegtools with the piping can only be mad
> faster with more cores.
>
> You might try it without the -4 and -2 option that should speed up
> things a little
>
> > Another question, I'm using mjpegtools in ubuntu right now. When, I try
> > to install in debian. It is failing. Whether the package supports
> > debian? I need mjpegtools in debian machine.
> You might get a precompiled packed from debian. There is no precompiled
> package on Sourceforge.
>
> [...]
>
> > > The fbs file has one minute session(video). When I execute this
> > command,
> > > It is taking around 4 minutes to convert fbs file to mp2. I feel
> > this is
> > > quiet unfair, so is there any options to reduce this conversion
> > duration
> > > without any loss in video.?
> > How many cores do you have in your computer ?
> > The -M 2 (or 4) helps. Is there a program in the pipeline that uses
> 100%
> > of one CPU ?
> >
> > Did you run the pipeline with the time program ? So you know how much
> > time each program consumes (should work):
> > time ./rfbproxy -x ../../files/q3.fbs | time ppmtoy4m -S 420jpeg | \
> > time mpeg2enc -f 3 ...
> Than just try it for one program at the time.
>
> auf hoffentlich bald,
>
> Berni the Chaos of Woodquarter
>
> Email: shadowlord@utanet.at
> www: http://www.lysator.liu.se/~gz/bernhard<http://www.lysator.liu.se/%7Egz/bernhard>
>
>
> ------------------------------------------------------------------------------
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> https://lists.sourceforge.net/lists/listinfo/mjpeg-users
>
--
Regards,
Nagalenoj H.
[Attachment #5 (text/html)]
I've just summarized the usage of mjpegtools along with RfbProxy in<br><a \
href="http://nagalenoj.blogspot.com/2010/04/rfbproxy.html">http://nagalenoj.blogspot.com/2010/04/rfbproxy.html</a><br><br><div \
class="gmail_quote"> On Fri, Oct 2, 2009 at 9:35 PM, Bernhard Praschinger <span \
dir="ltr"><<a href="mailto:shadowlord@utanet.at">shadowlord@utanet.at</a>></span> \
wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, \
204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hallo<br>
<div class="im"><br>
Nagalenoj H. wrote:<br>
> Mine is not dual core or more.. And that command(time with each command<br>
> in pipe) doesn't work. I don't how I am going to reduce the \
conversion<br> > duration?!!!!<br>
</div>If you only have one CPU/Core you don't even need mpeg2enc's -M 2<br>
option. The only thing that might help you than is the buffer program<br>
for buffering the I/O. The mjpegtools with the piping can only be mad<br>
faster with more cores.<br>
<br>
You might try it without the -4 and -2 option that should speed up<br>
things a little<br>
<div class="im"><br>
> Another question, I'm using mjpegtools in ubuntu right now. When, I try<br>
> to install in debian. It is failing. Whether the package supports<br>
> debian? I need mjpegtools in debian machine.<br>
</div>You might get a precompiled packed from debian. There is no precompiled<br>
package on Sourceforge.<br>
<br>
[...]<br>
<div class="im"><br>
> > The fbs file has one minute session(video). When I execute this<br>
> command,<br>
> > It is taking around 4 minutes to convert fbs file to mp2. I feel<br>
> this is<br>
> > quiet unfair, so is there any options to reduce this conversion<br>
> duration<br>
> > without any loss in video.?<br>
> How many cores do you have in your computer ?<br>
> The -M 2 (or 4) helps. Is there a program in the pipeline that uses 100%<br>
> of one CPU ?<br>
><br>
> Did you run the pipeline with the time program ? So you know how much<br>
> time each program consumes (should work):<br>
> time ./rfbproxy -x ../../files/q3.fbs | time ppmtoy4m -S 420jpeg | \<br>
> time mpeg2enc -f 3 ...<br>
</div>Than just try it for one program at the time.<br>
<div><div></div><div class="h5"><br>
auf hoffentlich bald,<br>
<br>
Berni the Chaos of Woodquarter<br>
<br>
Email: <a href="mailto:shadowlord@utanet.at">shadowlord@utanet.at</a><br>
www: <a href="http://www.lysator.liu.se/%7Egz/bernhard" \
target="_blank">http://www.lysator.liu.se/~gz/bernhard</a><br> <br>
------------------------------------------------------------------------------<br>
Come build with us! The BlackBerry&reg; Developer Conference in SF, CA<br>
is the only developer event you need to attend this year. Jumpstart your<br>
developing skills, take BlackBerry mobile applications to market and stay<br>
ahead of the curve. Join us from November 9&#45;12, 2009. Register \
now&#33;<br> <a href="http://p.sf.net/sfu/devconf" \
target="_blank">http://p.sf.net/sfu/devconf</a><br> \
_______________________________________________<br> Mjpeg-users mailing list<br>
<a href="mailto:Mjpeg-users@lists.sourceforge.net">Mjpeg-users@lists.sourceforge.net</a><br>
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target="_blank">https://lists.sourceforge.net/lists/listinfo/mjpeg-users</a><br> \
</div></div></blockquote></div><br><br clear="all"><br>-- <br>Regards,<br>Nagalenoj \
H.<br>
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