[Bug 748337] ksvideosrc dropping frames

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=748337

--- Comment #6 from Philippe Renon <philippe_renon at yahoo.fr> ---
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ksvideosrc 1.4 branch + patch
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A lot of buffers are being dropped. (gstbasesink.c(2794):
gst_base_sink_is_too_late ():
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0/GstAutoVideoSink:fps-display-video_sink/GstD3DVideoSink:fps-display-video_sink-actual-sink-d3dvideo:
There may be a timestamping problem, or this computer is too slow.)

has a clock

fpsdisplaysink reports:
rendered: 0, dropped: 129, fps 0.00, drop rate: 15.83



What is strange is that in all test cases, the video visually seems to run at
~30fps.
Forcing the frame rate to 10fps makes a big difference (i.e. you can see it
runs at 10fps).
Pipeline used for 10fps: ksvideosrc ! video/x-raw, framerate=10/1 !
fpsdisplaysink

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