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.
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