[Bug 662777] New: Caps negotiation got a lot slow since the last release
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Wed Oct 26 08:48:09 PDT 2011
https://bugzilla.gnome.org/show_bug.cgi?id=662777
GStreamer | gstreamer (core) | git
Summary: Caps negotiation got a lot slow since the last release
Classification: Platform
Product: GStreamer
Version: git
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gstreamer (core)
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: sjoerd at luon.net
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Created an attachment (id=200032)
--> (https://bugzilla.gnome.org/attachment.cgi?id=200032)
testcase
When starting a video call with farsight using a cmaera with lots of different
resolutions caps negotiation starts to take forever. I tracked it down to one
particular intersection in basetransform that takes about 10 seconds for some
reason. Attached is a small testcase with the caps (a.caps and b.caps) inside
that i happen to see on my pipeline startup. In the previous release this
intersection would take about 0.5 seconds, with current git it takes 10...
To simply test compile the test.c inside the tarball as follows:
gcc -Wall -g $(pkg-config --cflags --libs gstreamer-0.10) test.c -o test
and try running with both released and git versions of gstreamer :)
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