[GRASS-dev] Re: Nviz animation wish

[William Kyngesburye]

On Jan 25, 2007, at 5:22 PM, Hamish wrote:

> Again, not needed. r.out.mpeg will work fine with "ppmtompeg" which
> comes with NetPBM tools. AFAIK this comes with MacOSX already.
> ppmtompeg is mpeg-encode renamed; r.out.mpeg should work out of
> the box, ie without ffmpeg.
>
No, there are no commandline mpeg tools that come preinstalled with  
OSX.  But some are readily available and up-to-date - ffmpeg,  
mencoder come to mind.  You can also find some in Fink and  
Darwinports, but some people prefer to not use those.

>> A possibility would be to rewrite the r.out.mpeg module to use the
>> ffmpeg program or other mpeg encoder, which has readily available
>> binaries.  Or just run them manually thru ffmpeg.
>
> IMO it would be much better to de-emphasise r.out.mpeg and rewrite  
> as a
> shell/python/perl script depending on mencoder (or similar FFMPEG  
> tool).
> Most of that module deals with creating the MPEG-1 encode spec file,
> which is not needed with newer encoders.
>
Just giving options.  But a script to interface with an external mpeg  
encoding program of choice would be nice.  If possible it should be  
able to handle multiple common encoders, so the user can use what  
they can get. (Sorry, I'm not good with shell scripting.)


On Jan 25, 2007, at 5:18 PM, Helena Mitasova wrote:
>
> On Jan 25, 2007, at 11:27 AM, Agustin Diez Castillo wrote:
>
>> Michael I second you wish, for me is almost a dream.
>> Have been somebody able to run xganim in a Mac? I've tried in several
>> occasions to compile it with no success at all.
>
> I have it running on Mac with Lorenzo's GRASS6.1 and I have been  
> careful not to update it
> so that I don't lose that capability. Whatever happened to it I  
> would beg to put it back
> before there is a reliable replacement.

Hm, I decided for my OSX binaries to not include xganim because I  
didn't want to also bloat the package with a copy of lesstif.  That  
tcltk-based xganim of Glynn's would be great if it works comparably  
to the motif-based one.

-----
William Kyngesburye <kyngchaos at kyngchaos.com>
http://www.kyngchaos.com/

Earth: "Mostly harmless"

- revised entry in the HitchHiker's Guide to the Galaxy