Georg, Since I use footage from my HDV camera that is progressive and not interlaced, I did not see that particular problem. I will update my doc to reflect your findings. cheers, scott
On Fri, 2007-09-07 at 19:24 +0200, Kurt Georg Hooss wrote: > Thanks, that's indeed what I refer to. > > I am actually very thankful that you published that > > and that it got me so far as to producing anything at all. > > However as I said, using it like you wrote produces wrong field order, > > at least on my machine. so I googled and found one explanation > > of those two arguments that you recommended to be removed. > > apparently, these are not arguments but flags, which at least > > makes a difference in command syntax. :-) > > do it right, and field order comes out right. > > the -y argument is for allowing targets to be overwritten. > > leaving it out means specified .m2v file cannot be rendered out > > if there is already a file of that name. it works on the command line > too. > > the meaning of the -hq argument remains a mystery. i did not need it. > > cheers > > georg > > On Friday, 7. September 2007 02:24:28 Scott C. Frase wrote: > > > Kurt, > > > You've got it, essentially. I tend to use this command to export DVD > > > resolution video from Cinelerra: > > > ffmpeg -f yuv4mpegpipe -i - -y -target dvd -f mpeg2video % > > > > > > And then combine with exported audio using this command: > > > ffmpeg -i audio.fmt -i video.m2v -target dvd destinationFilename.mpg > > > > > > where .fmt is wav/m2a/etc > > > > > > You can refer to my more detailed explanation here: > > > > http://crazedmuleproductions.blogspot.com/2007/06/beginners-guide-to-export > > with>ing-video-from.html > > > > > > scott > > > > > > On Thu, 2007-09-06 at 21:22 +0200, Kurt Georg Hooss wrote: > > > > folks, i had considerable pain creating foolproof dvd material. > > > > cinelerra offers rendering to yuv4mpeg pipe in either of two ways, > > > > through mpeg2enc and mplex, or through ffmpeg and again ffmpeg. > > > > > > > > in both cases, video and audio are rendered separately > > > > and then multiplexed together on the shell command line. > > > > however, in both ways i always kept producing horrific erroneus > results. > > > > > > > > > > > > 1. mpeg2enc was good in some cases and bad in others. > > > > one of my movies kept systematically pausing for short moments > > > > (two or three frames duration) every few seconds. not > professional. > > > > > > > > admittedly, it only happened when played on a commercial dvd > player > > > > through an old tv set, while on the computer it ran smooth. > > > > however it always halted in the same places, even when burned > slow. > > > > > > > > tweaking the quantization parameter either reduced the number of > halts > > > > but with too much loss of image quality (it looked really blocky), > > > > or otherwise improved quality but also increased the number of > errors. > > > > > > > > > > > > 2. ffmpeg renders interlaced footage in the wrong field order. > > > > so when played back on cheap dvd players, any motion looks > horribly > > > > jerky. (although admittedly one new player somehow managed to play > > > > smooth.) > > > > > > > > cinelerra's preset default ffmpeg options come in two variants. > > > > one does not account at all for interlacing and produces wrong > field > > > > order. the other crashes with an error. so here comes the > solution. > > > > > > > > the second variant suggested in the render dialog looks like > follows: > > > > "ffmpeg -f yuv4mpegpipe -i - -y -target dvd -ilme -ildct -hq -f > > > > mpeg2video %" the "-ilme -ildct" part is for interlacing, but is > > > > erroneous, thus the crash. > > > > > > > > i changed this into the following and got a working stream: > > > > "ffmpeg -f yuv4mpegpipe -i - -y -target dvd -flags +ilme+ildct %" > > > > (still with error messages about faulty headers or so. but it > works.) > > > > > > > > the resulting .m2v can be further processed together with the .ac3 > audio > > > > with the following shell command, producing a dvd-compatible mpeg > stream: > > > > > > > > $ ffmpeg -i your-movie.ac3 -i your-movie.m2v -target dvd \ > > > > -flags +ilme+ildct your-movie.mpg > > > > > > > > > > > > that's it. check it out. > > > > maybe someone knows how to change the preset pipe options > accordingly? > > > > and maybe someone else knows how to put this information into the > manual? > > > > > > > > :-) > > > > > > > > cheers > > > > georg > > > > > > _______________________________________________ > > > Cinelerra mailing list > > > [email protected] > > > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > > -- > > dr.k.g.hooss > > schoepfung & wandel wissenschaftliche medienberatung > > breite strasse 6-8, d-23617 luebeck > > www.schoepfung-und-wandel.de > _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
