[FFmpeg-user] minterpolate problem

[Mark Filipak (ffmpeg)]

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.