On 23/07/10 09:41, Simon Greenwood wrote:
On 23 July 2010 09:26, ByteSoup <bytes...@gmail.com
<mailto:bytes...@gmail.com>> wrote:
Hi,
Im trying to use ffmpeg to help my kids produce some stopmotion
video files. Ive used this FAQ as a good reference:
http://www.ffmpeg.org/faq.html
Ive got past the bit where I reliased I needed to rename my files
in sequential order and produced a mpg file, covered here
http://www.ffmpeg.org/faq.html#SEC14
I got a couple of questions:
1. the syntax using the "%d" would I be right in saying that
pic%06d,jpg means any file from pic000001.jpg through to and
including pic999999.jpg?
2. The mpg output seems to have a fixed frame rate, if I use
another frame rate with the -vcodec option for example -vcodec
mpeg4, how do i specify the frame rate?
3. What other methods has anyone used? Are there better
suggestions or is ffmpeg the best package to use?
1. Yes
2. The -r switch specifies the frame rate but I believe that's 24 for
any codec as that's the standard for video and any other rate would
appear to run fast or slow. That's probably not what you want to achieve.
3. There are a number of animation programmes in the Software Centre
which will at least give you a GUI - I can see stopmotion and KToon
but have no experience with them. A quick google also brings up Pencil.
ffmpeg is the standard for video processing and is probably somewhere
behind other software.
s/
Thanks Simon,
It turns out changing the -r setting when using another codec doesnt
really change much, it keeps the same overall film time it just drops
frames, which isnt what I was looking for. Anyway I spent a little time
googling around and ended up installing "mencoder" then I used option 3
on "stopmotion"under the configure UI menu, and it produces a encoder
line like this
mencoder -ovc lavc -lavcopts vcodec=msmpeg4v2:vpass=1:$opt -mf
type=jpg:fps=5 -o "$VIDEOFILE" "mf://$IMAGEPATH/*.JPG"
The only part I changed is *fps=* down to 5 from 8. Im assuming the
input file list is in $opt in that line?
-Mark
--
ubuntu-uk@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
https://wiki.ubuntu.com/UKTeam/
