[Bug 727731] New: tsdemux: add support for chinese AVS video codec

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=727731
  GStreamer | gst-plugins-bad | git

           Summary: tsdemux: add support for chinese AVS video codec
    Classification: Platform
           Product: GStreamer
           Version: git
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: gst-plugins-bad
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: aurelien.zanelli at parrot.com
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=273689)
 View: https://bugzilla.gnome.org/attachment.cgi?id=273689
 Review: https://bugzilla.gnome.org/review?bug=727731&attachment=273689

tsdemux: add support for chinese AVS video codec

Some chinese terrestrial broadcasters use CAVS video codec embedded in MPEG-TS
file. Since we have a decoder provided by libav, we could handle the stream in
tsdemux.

At this moment, I wrote a dirty patch which add support of this stream type in
tsdemux. However, they use a stream_type id (0x42) which is within the reserved
range of the ISO. So it could be better to add a DTMB/CTTB (Chinese standard
for broadcasting) specific files like the ones we have for ATSC, DVB-T...
But I don't know yet how to determine if the TS stream is DTMB/CTTB or not,
since registration_descriptor seems to be empty.
Also I "create" a new mime-type: "video/x-cavs"

Anyway, I attached a TS file which contains CAVS video track, my dirty patch
for tsdemux and a patch for gst-libav to map CAVS codec to video/x-cavs.

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