ssaparse seems to skip the received caps information except format

[HoonHee Lee]

Dear All.

I have a question about ssaparse.
ssaparse seems to skip the received caps information from ustream element
except format.
We are using playbin pipeline to playback for internal subtitle.
Currently, our demux element has some modified caps information in such
track-num to interface upper player.
In decodebin, ssapare fixes the caps like following code when caps event is
received.

static gboolean
gst_ssa_parse_setcaps (GstPad * sinkpad, GstCaps * caps)
{
  ..
  outcaps = gst_caps_new_simple ("text/x-raw", "format", G_TYPE_STRING,
"pango-markup", NULL);
  ..
}

We hope that track-num and another information are not missing.
How about to have white list or black list in ssaparse to setup output caps.

Please guide to me if you have good idea.



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