> Do something like this: > > MENCODER="nice -n 19 mencoder" > $MENCODER -oac copy -ovc copy /dev/video0 -endpos $2 -o avi/"$1".mpeg > $MENCODER -ovc frameno -o frameno.avi -oac mp3lame -lameopts cbr:br=128 > avi/"$1".mpeg > $MENCODER -oac mp3lame -lameopts cbr:br=128 -o /dev/null -ovc lavc -lavcopts > vcodec=msmpeg4:vbitrate=1000:vhq:vpass=1 -vop scale=720:480 avi/"$1".mpeg > $MENCODER -oac mp3lame -lameopts cbr:br=128 -o avi/"$1".avi -ovc > lavc -lavcopts vcodec=msmpeg4:vbitrate=1000:vhq:vpass=2 -vop scale=720:480 > avi/"$1".mpeg > > > no guarantees!!
disclaimer accepted! i'll see what i can come up with this evening. thanks again for the replies!! -=tim > > ----- Original Message ----- > From: "Tim" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, June 09, 2006 12:29 PM > Subject: [ivtv-users] PVR-150 Compression > > >> Greets! >> >> first off, to be quite honest, i'm not real sure what i'm doing at this >> point, so apologies in advance if this question is lame and/or should be >> directed somewhere else. hopefully, if any of the above is true, someone >> will be kind enough to point me in the right direction. :) oh yeah, ivtv >> rocks and has made me very happy to date (an entire week)!! >> >> i recently purchased a WinTV-PVR-150 because: >> 1)Linux/ivtv will happily use it >> 2)built-in hardware MPEG-2 encoder >> 3)priced right ($100/US) >> >> i've been looking around here and there trying to find the best way to get >> the video from some DV's i recorded last year to my linux box for >> converting to DVDs via Composite 1 (i have yet to use S-Vid), and the best >> that i've come up with so far is something like the following in a script: >> >> mencoder -vf scale=720:480 -vfm ffmpeg -oac mp3lame -of avi \ >> -ovc copy /dev/video0 -endpos $2 -o avi/"$1".avi >> (i don't know if i should use -oac copy instead, or if it even matters?) >> >> this seems to work well, but then i have to turn around and issue this: >> >> mencoder -ovc copy "$1".avi -forceidx -oac copy \ >> -o "$1"copy.avi >> >> then i do any cutting that's necessary in case i've recorded too much >> "blue screen" at the end of the tape. >> >> for an hour's worth of video, this results in a file 3GB+ >> i'm guessing i'd get the same results if i just issued a: >> cat /dev/video0 >output.mpg ??? >> >> i successfully have Myth set up and actually recorded one of my DV's and >> it was a bit smaller, i think about 2.3G and i'm pretty sure it was at >> least an hour. the problem i see with using Myth to do this, is that i'd >> rather not sit there and wait to cue up the DV when Myth starts recording. >> :) unfortunately, i don't have any idea what Myth is doing to the file to >> make it smaller in size than what i'm doing in my script. >> >> are the file size(s) i'm seeing normal? is there something i should be >> setting via ivtvctl? >> >> i have a feeling that i'm off topic here which is not my intent, but i'm >> just not sure where else to go for PVR-150 issues/questions which in the >> end quite possibly is *not* my question, but in fact is an encoder >> question?? >> >> Best Regards, >> -=tim >> >> _______________________________________________ >> ivtv-users mailing list >> [email protected] >> http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
