[Bug 733588] New: videobox: Add format conversion gray to/from AYUV/RGB

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=733588
  GStreamer | gst-plugins-good | git

           Summary: videobox: Add format conversion gray to/from AYUV/RGB
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: ravi.kiran at samsung.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Currently, videobox supports below format conversions
I420->AYUV
I420->YV12
YV12->AYUV
YV12->I420
AYUV->I420
AYUV->YV12
AYUV->xRGB (24bpp, 32bpp, incl. alpha)
xRGB->xRGB (24bpp, 32bpp, from/to all variants, incl. alpha)
xRGB->AYUV (24bpp, 32bpp, incl. alpha)

RGB/YUV to GRAY and vice-versa isn't supported, although videobox can work with
GRAY format

pipelines like below will work without converter if gray conversion is
supported.
gst-launch-1.0 videotestsrc ! "video/x-raw,format={GRAY8}" ! videobox !
ximagesink

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