[FFmpeg-devel] [PATCH] documentation: extend documentation for ffmpeg -aspect option

Stefano Sabatini stefano.sabatini-lala at poste.it
Sun Mar 27 17:34:36 CEST 2011

On date Saturday 2011-03-26 19:51:56 +0100, Ivo encoded:
> On Saturday 26 March 2011, 16:18:10, Stefano Sabatini wrote:
> > +Set display aspect ratio for the output video.
> > +
> > +This option accepts in input a string of the form @var{num}:@var{den},
> s/accepts in input/requires/
> > +where @var{num} and @var{den} are numerator and denominator of the
> > +wanted display aspect ratio, or @var{float}, where @var{float} is a
> > +floating number. For example "4:3", "16:9", "1.3333", or "1.7777" are
> s/floating/floating point/

Somehow rephrased and simplified.

I noted that -aspect is ignored for input files (maybe it would be
useful for forcing the "read" DAR).

As for the default value, there is the usual confusion due to the fact
that if not specified aspect_ratio is set to the last value set, which
could be the aspect_ratio of the previous input/output file. I prefer
not to document this behavior for now.

I'll push it soon if there are no comments.
FFmpeg = Formidable and Fancy Mastering Practical Erotic Guru
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