[Bug 692388] New: [API] codecparsers: vc1: parse slice headers

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=692388
  GStreamer | gst-plugins-bad | git

           Summary: [API] codecparsers: vc1: parse slice headers
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: gb.devel at gmail.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=234201)
 View: https://bugzilla.gnome.org/attachment.cgi?id=234201
 Review: https://bugzilla.gnome.org/review?bug=692388&attachment=234201

codecparsers: vc1: add API to parse slice headers

Hi, this patch adds a utility function to parse slice headers in VC-1
bitstreams. I just need to know the SLICE_ADDR syntax element, which represents
the slice vertical position.

If PIC_HEADER_FLAG is set to one, then a picture layer is parsed but not
recorded (through a user-provided struct for example). Why? Well, this is
because the picture header in slice header shall be the same as what was
previously parsed for the parent frame BDU.

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