On Sunday 18 January 2009, Bernhard Praschinger wrote: > Hallo > > Peter Chant wrote: > > Any suggestions of a video file format to use whilst undergoing the > > editing process after having passed video through mjpegtools? I know a > > raw format is ideal, but I'm not looking at broadcast quality source > > material so something that does compresses a little with a small to > > moderate amount of compression would be good. I'm wanting to keep video > > and sound together. > > If you only work with mjpeg files and do simple cut/edit action. You can > use the editlist files.
Yes, I have used glav to cut the wanted sections out of the orignal captured video. > > <mjpeg stuff> |mpeg2enc -f 8 -4 2 -2 1 -F 3 -q 8 -o video/$1.m1v > > > > I've then either passed this to devedee or edited in kdenlive and passed > > to devedee, after multiplexing the soundtrack back onto the file. > > From what I have seen from the kdenlive website. The format where you > have not that much compression seems to be mov as container with DV > compression. The mjpegtools can read that format. And use that file when > you are done with editing for encoding with the mjpegtools. > Can it write it? I'm wondering what is best used to feed video from mjpegtools to kdenlive? Basically I have put mjpeg tools at the beginning of the process rather than at the end to tidy things. Basically glav seems to be great for creating simple quick and dirty edit lists! > > Now, I thought this would be the right format for DVD but devede > > re-encodes. When editing with kdenlive it always re-encode the stream > > anyway (obvious if you think about it). So perhaps an exactly DVD > > compatible format is unecessary. What format do people suggest? > > I have a very simple toolchain. I record with a Zoran based card (lavrec > only), or with a ADVC-100 and kino. The third source are transport > streams using ProjectX. Than I do just simple cutting with glav/lavplay, > and encode the files afterwards with the mjpegtools. > It's the authoring to DVD stage. I think I've found the option, there is a tickbox buried away in the devede menus to tell the program that the input file is already in a dvd friendly format. Bit of a nuisance that I can't do it globally as I have about twenty files on the DVD! My overall concern was that I was generating unnecessary decoding and encoding processes in my workflow. Given the source material I suspect its not noticable anyway, but it would be nice to not add too much loss in the editing process. Actually the test disk looked OK on screen. > You can raise the quality factor a little to 3 or maybe even 2. mpeg is > a compression where you loose information, and have artefacts. > Yes, I managed a little improvement. To some extent it may just be that I don't look at other people's credits at close range on a PC monitor, especially frame by frame, so perhaps I'm expecting a bit too much from the process! Credits on the test disk were a bit rough, need to burn a new disk and have another look. Thanks, Pete -- Peter Chant http://www.petezilla.co.uk ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
