[Chimera-users] MPEG compression
goddard at cgl.ucsf.edu
Mon Apr 6 10:42:06 PDT 2009
Chimera uses ffmpeg to encode a series of images into a movie.
ffmpeg is included with Chimera in the "bin" directory. If you record a
movie in Chimera using the "movie" command or "Movie Recorder" dialog,
the command used to encode the movie is reported in the reply log
(Favorites menu). Here's an example:
-r 25 -i
-y -f mov -b 2000 -bufsize 200 /Users/goddard/chimera_movie.mov
The "-r" option gives playback frame rate in frames per second. The -i
gives the input image files. The "%05d" in that specification
represents the 5 digit image number in the file name (e.g.
image-%05d.jpg represents image-00000.jpg, image-00001.jpg,
image-00002.jpg, ...) The "-f" is the output format (mov = quicktime).
The "-b" gives bit rate it kilobits/second which determines quality
versus file size.
You can invoke ffmpeg directly from a terminal window on Mac or Linux
without starting Chimera. For more options search for ffmpeg on the web.
Matthew Dougherty wrote:
> One of the people in my lab has a series of images that they want to
> turn into MPEG's
> Because they are familiar with Chimera, I would like to solve their
> problem using Chimera rather than train them on FCP.
> Is there a way to do this either with chimera commands or developing a
> short python script?
> thanks, Matt
> Chimera-users mailing list
> Chimera-users at cgl.ucsf.edu
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