[gstreamer-bugs] [Bug 600370] New: [subtitleoverlay] New element to overlay video with subtitles in every supported format

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Sun Nov 1 23:10:33 PST 2009


https://bugzilla.gnome.org/show_bug.cgi?id=600370
  GStreamer | gst-plugins-base | git

           Summary: [subtitleoverlay] New element to overlay video with
                    subtitles in every supported format
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: slomo at circular-chaos.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
            Blocks: 570753
      GNOME target: ---
     GNOME version: ---


Hi,
attached patch adds a new element called subtitleoverlay to the playbin plugin.
Its purpose is to autoplug a pipeline that parses/overlays subtitles (or
subpictures) on a video stream.

It also supports caps changes during playback (switch from subtitles to
subpictures for example) and enabling/disabling subtitles during playback (by
unlinking the subtitle pad). If the subtitle pad is never linked the element
works in passthrough mode.

Apart from the normal "parser ! overlay" pipeline that playbin2 creates this
also allows subtitle renderers (like assrender), see bug #570753.

The element is added to the playbin plugin because I plan to use it in playbin2
to fix #595123, #570753, #591706, #591706 and possible others. Please review :)

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