[MEncoder-users] decryption speed problem (& apology)

[fake name]

Wow, thanks Jim that worked like a charm (why is that?).  I'm definitely not I/O limited any more.  Now if I could just get mencoder to honor the x.264 threading option (threads=auto) I'd really be flying.  If you have any ideas I'd greatly appreciate it.  Also if you see anything blatantly stupid in my mencoder options please feel free to point it out.

Thanks again, brett

--- On Fri, 8/1/08, James Hastings-Trew <jimht at shaw.ca> wrote:
From: James Hastings-Trew <jimht at shaw.ca>
Subject: Re: [MEncoder-users] decryption speed problem (& apology)
To: junk_email333 at yahoo.com, "MEncoder usage discussions" <mencoder-users at mplayerhq.hu>
Date: Friday, August 1, 2008, 6:12 PM

fake name wrote:
> Hi all,
>
> First off, I'd like to apologize for the cross-posting with the
mplayer users list.  I realized after I sent it that the mencoders users list is
probably the more appropriate place for my question.
>
> I'm having a problem (I believe) with the decryption and/or DVD drive
read speed with mencoder.
>
> Is it possible to decrypt and/or transcode faster than real time (i.e.
faster than 1x drive speed)?
>
> I
> noticed the problem when trying to transcode directly from DVD to x264
> but have the same problem with a simple dumpfile dumpstream with
> mplayer.
>
> This is definitely an I/O limitation and not a CPU
> limitation.  Other programs (including some that use mencoder) can
> accomplish this much faster than real time.  When using those programs
> my cpu (both cores) are maxed out but with mencoder it is only using ~
> 30%.
>
> I would just use an already existing program, but I'm
> trying to use this as a learning experience for video transcoding,
> mencoder and the x264 codec.
>
> Pertinent info:
>
> core 2 duo @ 2.13GHz, 2 gigs
>  RAM, XP SP 2.
>
> Here is my mencoder command:
>
> "C:\Program
> Files\mencoder\mencoder.exe"  dvd://1 -dvd-device D: -sws 9
-of lavf
> -lavfopts format=ipod -vf scale=480:-2,dsize=480:320:0,harddup -ovc
> x264 -x264encopts
>
bitrate=896:vbv_maxrate=896:vbv_bufsize=2000:nocabac:me=umh:subq=6:frameref=6:trellis=1:level_idc=30:global_header:threads=auto
> -oac faac -aid 128 -faacopts mpeg=4:object=2:br=160:raw -channels 2
> -srate 48000 -o "C:\Program Files\mencoder\test.m4v"

>
> Here is the log:
>   
Try dvd://1 -dvd-device d:\VIDEO_TS

It will go much faster. :)


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