Hallo
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?
The mjpegtools cannot create DV encoded files (at least I don't know
how). They can only read them. The the best quality is a mjpeg encoded
AVI/MOV at a high quality factor of 95. (100 might cause problems)
Well If you really want every bit of quality you can create single raw
ppm files. I would not recommend that.
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!
I would not use the word dirty, but quick is correct.
If you have clips and want just trim them, glav and a editlist is a very
simple way.
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!
If you feed the program already good mpeg2 streams than you only loose
time and quality by reencoding.
I'm sorry but I don't have experience with that two programs.
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.
If you use DV you should not notice much. If you use the mjpeg format in
MOV or quicktime files. You will notice something.
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.
If you view them on a normal TV you won't notice much. If you wath them
on a new Set where you have HDMI (or any other digital transmition I
think you will notice it.
auf hoffentlich bald,
Berni the Chaos of Woodquarter
Email: shadowl...@utanet.at
www: http://www.lysator.liu.se/~gz/bernhard
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