[Bug 726192] srtpenc: send caps event after stream-start

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=726192
  GStreamer | gst-plugins-bad | git

--- Comment #1 from Aleix Conchillo Flaqué <aleix at oblong.com> 2014-03-12 18:15:03 UTC ---
Created an attachment (id=271637)
 View: https://bugzilla.gnome.org/attachment.cgi?id=271637
 Review: https://bugzilla.gnome.org/review?bug=726192&attachment=271637

fix caps misordering

>From the commit log:

    we initialize key_changed to FALSE as no key has been set yet. we also
    use gst_pad_push_event instead of the old gst_pad_set_caps, and
    gst_pad_get_current_caps instead of gst_pad_query_caps.

    finally, we send a caps event after the stream-start event, otherwise
    the caps event is only sent when a buffer is chained. this behavior is
    still kept to allow changing the key in the middle of the stream.

I have to say that I still don't fully understand when to use
gst_pad_get_current_caps and gst_pad_query_caps. I think I understand the
documentation but I always end up using gst_pad_query_caps, which might mean I
don't understand the documentation very well.

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