[yt-users] Re: How do you make movies?

[Markus Haider]

Hi Nathan,

I also use mencoder under Ubuntu 12.04, which I call through the 
following python script:


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#!/usr/bin/python

import os

# where are the pictures?
INPUTDIR ="./slices/slice_collection/"
BASENAME ="Cluster_hdf5_plt_cnt_5363_"


fps = '10'
bitrate = '2048000'
encode_opts=':mbd=2:mv0:trell:v4mv:cbp:vb_strategy=1:precmp=2:cmp=2:subcmp=2:preme=2:qns=2'

FIELD    ="Density"
outputFile = './movies/'+FIELD+'_slice.avi'
frameName=INPUTDIR+BASENAME+'*_Slice_x_'+FIELD+'.png'
encodeCommand = 'mencoder mf://'+frameName+' -mf type=png:fps='+fps+' 
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate='+bitrate+encode_opts+' -o 
'+outputFile
os.system(encodeCommand)
print 'Finished making video'

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The only thing you have to make sure is that the slices are numbered 
with enough leading zeros, otherwise e.g. slice 100 will be inserted 
into the video before slice 11

Cheers,
Markus