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Re: how to force VLC or MPlayer to add letterbox padding

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Robert Riches <spamtrap42@jacob21819.net> wrote:
> Is there a way to force VLC and/or MPlayer to add black padding at
> the top and bottom of the (non-full-screen) displaying window? In the
> case of interest, I have a 640x360 network stream that I want to
> display in a 640x480 window by adding padding (rather than
> stretching).  The fine manual, the usage message, and Googling have
> thus far not yielded the answer.

man mplayer:

   expand[=w:h:x:y:o:a:r]
          Expands (not scales) movie resolution to the given value
          and places the unscaled original at coordinates x, y.  Can be
          used for placing subtitles/OSD in the resulting black bands.

             <w>,<h>
                  Expanded width,height (default: original
                  width,height).  Negative values for w and h are
                  treated as offsets to the original size.

                  EXAMPLE:
                       expand=0:-50:0:0
                              Adds a 50 pixel border to the bottom of
                              the picture.

             <x>,<y>
                  position of original image on the expanded image
                  (default: center)

             <o>
                  OSD/subtitle rendering
                     0: disable (default)
                     1: enable

             <a>
                  Expands to fit an aspect instead of a resolution
                  (default: 0).

                  EXAMPLE:
                       expand=800:::::4/3
                              Expands to 800x600, unless the source is
                              higher resolution, in which case it
                              expands to fill a 4/3 aspect.

             <r>
                  Rounds up to make both width and height divisible by
                  <r> (default: 1).

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Thread

how to force VLC or MPlayer to add letterbox padding Robert Riches <spamtrap42@jacob21819.net> - 2014-09-09 04:05 +0000
  Re: how to force VLC or MPlayer to add letterbox padding Robert Komar <robk@robpc4.home.org> - 2014-09-08 23:37 -0700
    Re: how to force VLC or MPlayer to add letterbox padding Robert Riches <spamtrap42@jacob21819.net> - 2014-09-10 02:47 +0000
  Re: how to force VLC or MPlayer to add letterbox padding Rich <rich@example.invalid> - 2014-09-09 10:27 +0000
    Re: how to force VLC or MPlayer to add letterbox padding Robert Riches <spamtrap42@jacob21819.net> - 2014-09-10 02:47 +0000

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