On Mon, Jan 26, 2009 at 07:07:43PM -0600, Ron Johnson wrote:
> On 01/26/2009 05:40 PM, Alex Samad wrote:
>> On Sun, Jan 25, 2009 at 12:40:28AM -0600, Ron Johnson wrote:
>>> Hi,
>>>
>>> While ripping a bunch of (legal!) DVDs, I came up with these bash
>>> functions to make the task simpler. Hope you find it useful someday.
>>>
>>
>> [snip]
>>
>> wouldn't actually say you are ripping, more coping
>
> Ripping is pulling audio/video off of CD/DVD. Has nothing to do with
> compression.
>
>> I use something like this BITRATE=${BITRATE:-1000}
>>
>>
>> # New from readnig the web page!
>
> Which page?
oops bad copy/paste - mainly from mplayer site
>
>> PASSCOMMON='subq=6:partitions=all:8x8dct:frameref=3:b_pyramid:me=umh:bframes=4:weight_b:nopsnr:threads=auto:brdo:trellis=1:level_idc=41
>> :direct_pred=auto:bime'
>>
>>
>> PASS1='pass=1:turbo=1'
>> PASS2='pass=2'
>>
>> ENC1="x264 -x264encopts $PASS1:$PASSCOMMON:bitrate=$BITRATE"
>> ENC2="x264 -x264encopts $PASS2:$PASSCOMMON:bitrate=$BITRATE"
>
> How tightly does this compress?
>
> (Disks are cheap enough that, while I do want *some* compression, I will
> "spend" space for quality. This is so that if I ever want/need to burn
> them to DVD in the future, they will still look good.)
depends I find 1000kb is pretty good to dvd quaity
>
>> # setup Video filtering
>> CROP=${CROP:-"crop=720:416:0:80"}
>
> Why?
bad copy paste, I need to crop for that job, somebody had encoded with
black bars
>
>> FILTERCOMMN=${FILTERCOMMN:-'harddup'}
>> FILTER1=${FILTER1:-"$CROP,$FILTERCOMMN"}
>> FILTER2=${FILTER2:-"$CROP,$FILTERCOMMN"}
>>
>> OUTF="$OUTD/$BASE.avi"
>> PASSLOG="$BASE.divx2pass.log"
>>
>>
>>
>> echo "Pass 1"
>> nice mencoder -quiet \
>> -vf $FILTER1 \
>> -ovc $ENC1 \
>> -oac "$OAC" $OACOPT \
>> -passlogfile "$PASSLOG" \
>> -o /dev/null \
>> "$INF" $ADDOPT $AID $DVDDEVICE $OFPS
>>
>> echo "Pass 2"
>> nice mencoder -quiet \
>> -vf $FILTER2 \
>> $AENC \
>> -ovc $ENC2 \
>> -passlogfile "$PASSLOG" \
>> -oac "$OAC" $OACOPT \
>> -o "$TMPF" \
>> "$INF" $ADDOPT $AID $DVDDEVICE $OFPS
>>
>> takes more time,
>
> dumpstream, though, is *fast*.
yeah, but you could also use vobcopy and make a backup of the dvd, thus
keep multi tracks and subtitles ...
>
>> but uses a lot less space
>
> But how much information do you lose? With dumpstream, you lose none.
> Gives me a chance then to go back and experiment with differing
> compression levels.
>
> I will, though, try these, once I rip all my disks.
I have found there are really any set values to use, try some and see
how it goes depends on the movie you started with. But from what I have
seen/read 2 pass encoding is the way to go if you are worried about size
>
> --
> Ron Johnson, Jr.
> Jefferson LA USA
>
> "I am not surprised, for we live long and are celebrated poopers."
>
>
> --
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>
--
"That's called, 'A Charge To Keep,' based upon a religious hymn. The hymn talks
about serving God. The president's job is never to promote a religion."
- George W. Bush
05/05/2006
Washington, DC
talking to a German newspaper reporter in the Oval Office
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