[FFmpeg-devel] [PATCH 2/3] doc/indevs: suggest ffmpeg -lavfi.

Stefano Sabatini stefasab at gmail.com
Sun Mar 17 15:35:13 CET 2013


On date Sunday 2013-03-17 13:42:27 +0100, Nicolas George encoded:
> 
> Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
> ---
>  doc/indevs.texi |   10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/doc/indevs.texi b/doc/indevs.texi
> index cc5d666..c9383b1 100644
> --- a/doc/indevs.texi
> +++ b/doc/indevs.texi
> @@ -373,6 +373,16 @@ ffplay -f lavfi "movie=test.avi[out0];amovie=test.wav[out1]"
>  
>  @end itemize
>  
> +Note: with the @command{ffmpeg} command-line tool, the
> + at option{-filter_complex} or @option{-lavfi} option can be used to read from
> +a filter graph in a slightly more efficient manner. For example, the
> +following commands are mostly equivalent:

s/mostly/functionally/

> +
> + at example
> +ffmpeg -f lavfi -i testsrc out.avi
> +ffmpeg -lavfi testsrc out.avi
> + at end example

You might add a note here:

Note that the @command{ffmpeg} @option{lavfi} option does not directly
make use of the lavfi device.

But I'm not sure this really belongs to indevs.texi. Indeed I'd prefer
to avoid to mention command line tools when possible, so we don't need
to update non-tools docs when they are updated.
-- 
FFmpeg = Friendly Freak Minimalistic Purposeless Enhancing Gigant


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