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?
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=$BITRATE"
How tightly does this compress?
(Disks are cheap enough that, while I do want *some* compression, I
will "spend" space for quality. This is so that if I ever want/need
to burn them to DVD in the future, they will still look good.)
# setup Video filtering
CROP=${CROP:-"crop=720:416:0:80"}
Why?
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*.
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.
--
Ron Johnson, Jr.
Jefferson LA USA
"I am not surprised, for we live long and are celebrated poopers."
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