[LAU] [OT] a sorting problem with AVSynthesis and mencoder

Dave Phillips dlphillips at woh.rr.com
Tue Nov 27 07:01:11 EST 2007


Greetings,

I use the following command to invoke mencoder to compile a series of 
TGA image files into an animation :

mencoder -ovc lavc -lavcopts vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000 
-vf scale=800:600 -noskip -mf type=tga:fps=30 -o avs-001.avi mf://*.tga


(Sorry about the line breaks.)

The problem starts with the "mf://*.tga" part of the command. When the 
AVSynthesis program creates its TGA images it saves and labels them 
sequenctially, i.e. 1.tga, 2.tga, 3.tga and so on, as expected. The 
problem is that mencoder reads the files as they would be returned by a 
plain ls command, i.e. 1.tga, 10.tga, 100.tga, 1000.tga, 1001.tga 
...101.tga, 1010.tga, thus interpolating frames out of their correct order.

So, my question is, how do I get mencoder to read the TGA files by their 
time of creation ? That should do the trick, yes ? Otherwise I have to 
separate the single digit files from the double digit files and so 
forth, then I have to create and join separate AVIs. Not terribly 
difficult, just really annoying and time-consuming.

Any suggestions ? Any mencoder users out there ?

Also, what do you use in place of mencoder on a 64-bit system ? (It's 
not available for 64 Studio.)

Best,

dp




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