Hi Pete!
I downloaded ffmpeg-cvs-2003-06-05.tgz and it compiled right away. I
think the transcode gives better results, but then you probably want to
install som other packages as well. I have installed the following (I'm
not sure which one is needed)
divx4linux-20020418.tgz
xvidcore-0.9.1.tgz
avifile0.7-0.7.37.tgz
I'm using MPlayer-0.90,tgz to play the movie in the framebuffer console.
I think the xvideocore is preferred by many divX people.
I tried to use the transcode again with some different parameters, but
my computer can't keep up:
# transcode -i /dev/video -x v4l --import_v4l 1 -c 00:00:05 -g 68x576 -y
divx5 -z -K --divx_quant 1,5 -u 300,1 -o test.avi
This is a greyscale output, what I like, but I would rather grab it in
grayscale from the v4l-device in the first place. I can't find any
options for transcode to change the format of the input.
Well, i don't know if this help...
- Martin O.
Peter Farrow wrote:
Hi Martin...
ffmpeg I found impossible to make it work (how did you do this?) - it
was hard enough to even find it to compile...
I had success with the berkley mpeg encoder but it is VERY slow, and
overlapping motion mpegs eventually get the better of the machine with
multiple cameras...
I have never tried transcode
regards
Pete
Martin Osmundsvåg wrote:
Hi!
I was woundering about peoples experience with different codec's when
grabbing from a v4l device to record a PAL input in best possible
quality. I have tried nvrec, ffmpeg, and transcode. I have used
options like:
# transcode -i /dev/video0 -x v4l --omport_v4l 1 -c 00:0015 -g
768x576 -y divx5 -z -o test.avi
# ffmpeg -vd /dev/video0 -r 25 -an -s 768x576 -hq -vc 1 -t 300 test.mpg
I can't use an MPEG-chip card when I want to analyse the raw frame
before doing the decoding (i.e. motion detection). Someone said that
I couldn't do this with the v4l interface, so I'm using a Pinnacle
PCTV card with the bttv driver.
I'm using an AMD XP2600+ with 512MB 333MHz RAM, MSI motherboard with
KT400 chipset, IDE disks (possible with software RAID1), running
Slackware9.0, kernel 2.4.20.
Do anyone have a comment or some references?
Thanks!
- Martin O.
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