gqqnb2005 wrote:
> I then searched Google for the map syntax you provided, and it turns
> out to be from the `--help` option of ffmpeg.
No, I got it from the manual page. It's also contained in the online
documentation (which is basically the same as the manual page).
> I had always believed the help information was available online. Now I
> know I have to read `ffmpeg --help`.
Well, I'm on UNIX (BSD) so I use the manual page (``man ffmpeg-all'').
It contains the complete and detailed documentation, including many
examples.
Windows doesn't have manual pages, so I guess you need to use the
online documentation in this case:
https://ffmpeg.org/ffmpeg-all.html
It should have the same contents as the manual page, just formatted
differently.
The built-in help of the ffmpeg command is rather terse in comparison
and doesn't contain detailed explanations, and no examples. It's only
useful as a quick reference when you already know how FFmpeg works.
Best regards
-- Oliver
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