[FFmpeg-trac] #2182(documentation:new): Padding options lack documentation

[FFmpeg]

#2182: Padding options lack documentation
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             Reporter:               |                    Owner:
  matteosistisette                   |                   Status:  new
                 Type:  defect       |                Component:
             Priority:  important    |  documentation
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by saste):

 Replying to [ticket:2182 matteosistisette]:
 > http://ffmpeg.org/ffmpeg.html
 >
 > ALL is said about padding is:
 >
 > {{{
 > ‘-padtop size’
 > ‘-padbottom size’
 > ‘-padleft size’
 > ‘-padright size’
 > ‘-padcolor hex_color’
 > All the pad options have been removed. Use -vf
 pad=width:height:x:y:color instead.
 > }}}
 >
 > Not a word about the exact meaning of each of the height, width, x and y
 parameters. Is width the added width or the total width of original video
 plus padding? How are the x and y offset measured? Are these options
 applicable to input, output, or both? How do they combine with "-s"? The
 answers are FAR from obvious and MUST be addressed.

 > The only way to figure out with such documentation is by testing.

 Or you could read the -vf option documentation, which in turn points to
 the filters manual.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2182#comment:1>
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