[gstreamer-bugs] [Bug 619739] New: Teletext decoder element based on libzvbi

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=619739
  GStreamer | gst-plugins-bad | git

           Summary: Teletext decoder element based on libzvbi
    Classification: Desktop
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: ylatuya at gmail.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


Created an attachment (id=162034)
 View: https://bugzilla.gnome.org/attachment.cgi?id=162034
 Review: https://bugzilla.gnome.org/review?bug=619739&attachment=162034

New teletext decoder component

This patch against gst-plugins-bad adds a new plugin for teletetext decoding.

This element is a rework of Sebastien's teletext decoder component
(http://github.com/sebp/gst-teletext and
http://github.com/ylatuya/gst-teletext).

The sink pad accepts the following formats:
  * "video/mpeg,mpegversion=2,systemstream=true"
  * "private/teletext"

The source pad can push in the following format:
  * "video/x-raw-rgb"
  * "text/plain"
  * "text/html"

There is also a subtitles mode which strip off the first and the last line
(teletext info lines) and the blank lines if the source pad has negociated
"text/plain", and can be used to feed the subtitles into the muxer. 
This mode could also be used to add transparency to a page to overlay the
subtitles.

I would also like to add a support for pango markup, but it's currently a work
in progress.

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