[Bug 699077] New: [videorate] Add a property to modify clip speed

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=699077
  GStreamer | gst-plugins-base | 1.x

           Summary: [videorate] Add a property to modify clip speed
    Classification: Platform
           Product: GStreamer
           Version: 1.x
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: joris.valette at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=242681)
 View: https://bugzilla.gnome.org/attachment.cgi?id=242681
 Review: https://bugzilla.gnome.org/review?bug=699077&attachment=242681

Patch proposal for enhancement

PiTiVi video editor needs the possibility to change the speed of a clip over
time (for example for slow motion). A good solution for this is to add a
speed-rate property in the videorate element.

Here attached is a patch proposing a solution. It can be tested with :
"gst-launch-1.0 -v videotestsrc pattern=ball ! videorate speed-rate=1.0 !
ximagesink"
, and varying speed-rate values.
Minimum value is 0.0, which outputs a fixed frame.

P.S. : This is my all-time first bug filing and patch attaching, I hope I don't
miss something big.

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