I’ve been noticing that if I use the dump movie command (within a python script), and I have too many frames, I see errors at the command line of the form:
[NULL @ 0x7f8155014400] Invalid maxval: 0
Nothing appears in log.lammps, and there is nothing obviously wrong with the animation that’s generated.
-gideon
I’ve been noticing that if I use the dump movie command (within a python script), and I have too many frames, I see errors at the command line of the form:
[NULL @ 0x7f8155014400] Invalid maxval: 0
Nothing appears in log.lammps, and there is nothing obviously wrong with the animation that’s generated.
this is output from ffmpeg and harmless. ffmpeg is operating as a
separate executable in pipeline mode, so it don't know anything about
the dump command or LAMMPS.
it is simply that LAMMPS feeds it a stream of uncompressed pictures
and ffmpeg processes them until the pipeline is closed.
axel.