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.
> Basically I've been taking raw video from both a capture card and also video > from a DV camcorder, processing them to clean them up a little with > mjpegtools and as the last stage using this: > > <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. > 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. > On a similar subject I've rendered some credits using a script and povray to > multiple ppm files appended to a single file and have turned them into an > mpeg with the following: > > ppmtoy4m -o 1 -F 25:1 -I t -L -S 420mpeg2 fr.ppm | mpeg2enc -q 4 -H -f 8 > -4 > 1 -2 1 -o test.mpg > but there are obvious artifacts around the text. Any suggestions or am I > expecting too much of compressed mpeg video? 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. > BTW - thanks to all in the mjpeg community. I've passed some home camcorder > video taken in relatively low light through mjpegtools and it looks great > played back on my TV - I've managed to get rid of a lot of the noise that was > obvious on the raw video. Thanks. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: shadowl...@utanet.at www: http://www.lysator.liu.se/~gz/bernhard ------------------------------------------------------------------------------ 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
