The tutorial Script 2.6.5 3d postprocessing is giving error

Hi Marcus,
as the error says, there is a problem with mencoder, an external linux
program. What happens if you type 'mencoder' into your terminal?

A workaround is to use snapshot engine and then create movie from resulting
pictures (so exactly what makeVideo does internally). I am sure you can
find some easy-to-use GUI picture2movie maker..

cheers
Jan

2016-05-31 4:37 GMT+02:00 Marcus Moravia <
<email address hidden>>:

> New question #294631 on Yade:
> https://answers.launchpad.net/yade/+question/294631
>
> Hello, I was learning how to record a ' mpeg' file trying the tutorial's
> script 2.6.5 (Yade Documentation) but the script was returning the error
> below. It seems that makeVideo is not working. Can someone please help? I'm
> using Yade 1.20.0-151-0ecfcd0~trusty version.
>
> ##########
> OSError Traceback (most recent call last)
> /usr/bin/yadedaily in <module>()
>
> /usr/bin/yadedaily in finish()
> 45 # snapshot is label of qt.SnapshotEngine
> 46 # the 'snapshots' attribute contains list of all saved files
> ---> 47 makeVideo(snapshot.snapshots,'3d.mpeg',fps=10,bps=10000)
> 48 O.pause()
> 49
>
> /usr/lib/x86_64-linux-gnu/yadedaily/py/yade/utils.py in
> makeVideo(frameSpec, out, renameNotOverwrite, fps, kbps, bps)
> 512
> cmd=['mencoder','mf://%s'%frameSpec,'-mf','fps=%d'%int(fps),'-ovc','lavc','-lavcopts','vbitrate=%d:vpass=%d:threads=%d:%s'%(int(kbps),passNo,O.numThreads,'turbo'
> if passNo==1 else ''),'-o',('/dev/null' if passNo==1 else out)]
> 513 print 'Pass %d:'%passNo,' '.join(cmd)
> --> 514 ret=subprocess.call(cmd)
> 515 if ret!=0: raise RuntimeError("Error when running
> mencoder.")
> 516
>
> /usr/lib/python2.7/subprocess.pyc in call(*popenargs, **kwargs)
> 520 retcode = call(["ls", "-l"])
> 521 """
> --> 522 return Popen(*popenargs, **kwargs).wait()
> 523
> 524
>
> /usr/lib/python2.7/subprocess.pyc in __init__(self, args, bufsize,
> executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env,
> universal_newlines, startupinfo, creationflags)
> 708 p2cread, p2cwrite,
> 709 c2pread, c2pwrite,
> --> 710 errread, errwrite)
> 711 except Exception:
> 712 # Preserve original exception in case os.close raises.
>
> /usr/lib/python2.7/subprocess.pyc in _execute_child(self, args,
> executable, preexec_fn, close_fds, cwd, env, universal_newlines,
> startupinfo, creationflags, shell, to_close, p2cread, p2cwrite, c2pread,
> c2pwrite, errread, errwrite)
> 1325 raise
> 1326 child_exception = pickle.loads(data)
> -> 1327 raise child_exception
> 1328
> 1329
>
> OSError: [Errno 2] No such file or directory
> ##########
>
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