[Bug 704881] Partial ATSC_user_data and CEA-708 Closed Captions Support

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=704881
  GStreamer | gst-plugins-bad | git

--- Comment #41 from Faham Negini <faham.negini at vecima.com> 2014-08-21 00:59:15 UTC ---
Why the ccdec has changed its strategy providing different user_data packet
types on a same always source pad? I'm currently working on support for a
number of other user_data packet types, like the afd_data, luma_PAM and
bar_data, along with adding support for cea608dec. But with current design, it
is not possible to expand the ccdec to do that.

I'm thinking to expand ccdec to a more generic userdatadec element that detect
and provides various user_data packet types carried in the video stream. I
though the best way to do that is to add multiple always source pads to the
userdatadec (previously known as ccdec) element for each user_data packet type.
Otherwise, carrying all these different user_data packet types on different
caps of a same src_pad makes only one packet type effectively accessible.

Please let me know if I'm taking a wrong path.

Faham

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