[gstreamer-bugs] [Bug 500825] New: Race condition in flv demux
GStreamer (bugzilla.gnome.org)
bugzilla-daemon at bugzilla.gnome.org
Sat Dec 1 01:06:41 PST 2007
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GStreamer | gst-plugins-bad | Ver: HEAD CVS
Summary: Race condition in flv demux
Product: GStreamer
Version: HEAD CVS
Platform: Other
OS/Version: Windows
Status: UNCONFIRMED
Severity: normal
Priority: Normal
Component: gst-plugins-bad
AssignedTo: gstreamer-bugs at lists.sourceforge.net
ReportedBy: kwangyul.seo at gmail.com
QAContact: gstreamer-bugs at lists.sourceforge.net
GNOME version: Unspecified
GNOME milestone: Unspecified
I compiled flv demux against gstreamer-0.10.15 and gst-plugins-base-0.10.15. I
see a werid problem when flv demux works in pull mode. By the way, it works
well in push mode.
gst-launch-0.10.exe playbin uri="file:///c:/w.flv"
In gst_flv_demux_loop() function, demux->segment->rate is negative value for
some reasons I don't know. I tried to print the value, but the g_print shows
that the value is 1.0 in else clause of demux->segment->rate >= 0. So the
playback never starts and ends up in reverse playback's EOS condition.
/* check EOS condition */
if (demux->segment->last_stop <= demux->segment->start) {
/* <<<ALWAYS STOPS HERE>>> */
ret = GST_FLOW_UNEXPECTED;
goto pause;
}
More interestingly, when I convert demux->segment->rate to gint, it works
correctly and playback the flash video.
if ((gint) demux->segment->rate >= 0) {
...
}
else {
...
}
Is this a race condition?
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