[FFmpeg-user] minterpolate problem

Rodney Baker rodney.baker at iinet.net.au
Sun Jan 31 15:24:25 EET 2021


On Friday, 29 January 2021 20:09:54 ACDT Mark Filipak (ffmpeg) wrote:
> On 01/29/2021 04:23 AM, Moritz Barsnick wrote:
> > On Wed, Jan 27, 2021 at 14:16:16 +0000, Phil Rhodes via ffmpeg-user wrote:
> >>   > I didn't know I could get help on individual filters.
> >> 
> >> To be completely fair, that is actually in the docs, but it's not exactly
> >> on the front page.> 
> > Good point.
> > 
> > It is at the very top of the output of "ffmpeg -h" though:
> > 
> > Hyper fast Audio and Video encoder
> > usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options]
> > outfile}...> 
> > Getting help:
> >      -h      -- print basic options
> >      -h long -- print more options
> >      -h full -- print all options (including all format and codec specific
> >      options, very long) -h type=name -- print all options for the named
> >      decoder/encoder/demuxer/muxer/filter/bsf/protocol See man ffmpeg for
> >      detailed description of the options.
> > 
> > Or you just do "ffmpeg -h full" and go on a long search for an option.
> > 
> > :-)
> > 
> > Moritz
> 
> "-h type=name -- print all options for the named
> decoder/encoder/demuxer/muxer/filter/bsf/protocol".
> 
> Try 'ffmpeg -h type=filter.
> 
> It fails. Why? Because "filter" is a "type", not a "name" -- never mind that
> the details says "... named decoder/encoder ..."
> 
> "type" & "name" are actually tokens. The documentation should be something
> like this:
> 
> Getting help:
>       -h      -- print basic options
>       -h long -- print more options
>       -h full -- print all options (including all format and codec specific
> options, very long) -h <type>=<name> -- <type> can be decoder, encoder,
> demuxer, muxer, filter, bsf or protocol, and <name> can be the specific
> name of the <type>.
> 
> These are the types of things that trap those utterly stupid, lazy novices.
> 

You missed the last line that Moritz quoted: "See man ffmpeg for
detailed description of the options."

Running Windows and don't have the "man ffmpeg" command available natively? 
Try typing "man ffmpeg" into a google search and see what comes up. You'll 
probably find a link to this: 

http://manpages.org/ffmpeg

Look for the section titled "Generic Options". There you'll find the detailed 
descriptions you're looking for. 

BTW, this works for many other Linux commnds (if not all) that have man pages. 
Some are more terse than others. YMMV. 

Regards,
Rodney.


-- 
==============================================================
Rodney Baker VK5ZTV
rodney.baker at iinet.net.au
CCNA #CSCO12880208
==============================================================




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