[gstreamer-bugs] [Bug 614612] cairotextoverlay causes pipe stalls in cases where textoverlay does not

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=614612
  GStreamer | gst-plugins-good | 0.10.28

Vincent Penquerc'h <vincent.penquerch> changed:

           What    |Removed                     |Added
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                 CC|                            |vincent.penquerch at collabora
                   |                            |.co.uk

--- Comment #3 from Vincent Penquerc'h <vincent.penquerch at collabora.co.uk> 2010-12-31 15:49:53 UTC ---
cairotextoverlay uses GstCollectPads, which waits for data on all its inputs
before generating input. After the first subtitle, there's a large pause with
no text input, and textoverlay ends up stalling when the buffering fills up.

So I've added a way to mark sparse pads so GstCollectPads will not try to wait
for input on those, and marked the text pad in cairotextoverlay.

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