[gstreamer-bugs] [Bug 529860] New: ximagesink aspect-ratio not handled properly

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-base | Ver: 0.10.18
           Summary: ximagesink aspect-ratio not handled properly
           Product: GStreamer
           Version: 0.10.18
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: etienne_barbier at techemail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: 2.21/2.22
   GNOME milestone: Unspecified


Please describe the problem:
When linked to videoscale, modifying the keep-aspect-ratio property of
ximagesink have an effect only once.
If you start a pipeline with the keep-aspect-ratio set once for all, it will
always work fine. However, if you modify this property when playing, it will
not work anymore.


Steps to reproduce:
1. start a pipeline with videoscale linked to ximagesink,
keep-aspect-ratio=true
2. when playing, set keep-aspect-ratio to false, the video is enlarged to the
window size
3. set keep-aspect-ratio to true


Actual results:
The video cannot be resized, the ratio cannot be preserved anymore.

Expected results:
The video should be resized to keep the aspect ratio as requested

Does this happen every time?
Yes

Other information:
Looking to the code, its seems that after the size has been negociated with the
videoscale element, the src size equals the dst size(keep-aspect-ratio=false).
Hence gst_video_sink_center_rect always gives the same result whatever the
keep-aspect-ratio value.


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