[FFmpeg-trac] #11492(ffmpeg:new): Support for QuickTime skin file

[FFmpeg]

#11492: Support for QuickTime skin file
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             Reporter:  spixi   |                     Type:  enhancement
               Status:  new     |                 Priority:  normal
            Component:  ffmpeg  |                  Version:  unspecified
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
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 Summary of the bug:
 Early versions of QuickTime player allowed videos with “skins”. The
 “skins” themselves where contained directly in the video stream.

 The skinned videos came with a special XML file, but with the .MOV
 extension. This file refers to the actual video file, a window mask
 (contentregion, black = visible, white = transparent) and a drag mask
 (dragregion, black = draggable [that means the mouse becomes a drag cursor
 if you move over this area], white = not draggable). Allowed file formats
 for this masks are gif, tif and png. contentregion and dragregion can
 refer to the same file.

 An example file could look like this:

 {{{
 <?xml version="1.0"?>
 <?quicktime type="application/x-qtskin"?>
 <skin>
 <movie src="actual_movie.mov"/>
 <contentregion src="contentregion.png"/>
 <dragregion src="dragregion.png"/>
 </skin>
 }}}

 Currently, such a file is not supported. FFMpeg should at least open the
 referred actual_movie.mov when you load such a file. It would also be nice
 to have, when the contentregion is applied to the video as a simple alpha
 mask. The dragregion can be ignored.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11492>
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