Bug 163437 – [ffenc_*] Encoders segfault on exit

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Bug 163437 - [ffenc_*] Encoders segfault on exit


Summary:	[ffenc_*] Encoders segfault on exit


Status:	RESOLVED FIXED

Product:	GStreamer
Classification:	Platform
Component:	gst-libav
Version:	git master
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	0.8.4
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2005-01-09 10:39 UTC by Luca Ognibene
Modified:	2005-01-09 22:04 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
test case (1.76 KB, text/plain) 2005-01-09 21:14 UTC, Luca Ognibene		Details
possible fix (544 bytes, patch) 2005-01-09 21:46 UTC, Ronald Bultje	none	Details \| Review

Description Luca Ognibene 2005-01-09 10:39:04 UTC

gdb --args `which gst-launch-0.8` videotestsrc !
video/x-raw-rgb,width=640,height=480,framerate=2.0 ! identity error-after=1 !
ffcolorspace ! ffenc_mpeg4 ! fakesink

I've tried also with ffenc_mjpeg, ffenc_msmpeg4 and ffenc_h263p. They give the
same error on exit and (sometime) segfault.
(process:31284): GLib-GObject-WARNING **: invalid unclassed pointer in cast to
`GstObject'

(process:31284): GStreamer-CRITICAL **: file gstelement.c: line 3277
(gst_element_get_scheduler): assertion `GST_IS_ELEMENT (element)' failed

The backtrace is:
(gdb) bt

+ Trace 54292

#0 g_type_check_instance_is_a
from /usr/lib/libgobject-2.0.so.0
#1 gst_element_get_scheduler
at gstelement.c line 3277
#2 gst_pad_get_scheduler
at gstpad.c line 1978
#3 gst_bin_unset_element_sched
at gstbin.c line 413
#4 gst_bin_remove_func
at gstbin.c line 556
#5 gst_bin_remove
at gstbin.c line 620
#6 gst_bin_dispose
at gstbin.c line 922
#7 gst_pipeline_dispose
at gstpipeline.c line 141
#8 g_object_interface_list_properties
from /usr/lib/libgobject-2.0.so.0
#9 gst_object_unref
at gstobject.c line 248
#10 main
at gst-launch.c line 569

Comment 1 Ronald Bultje 2005-01-09 19:42:15 UTC

I think all elements do this on the gst-launch commandline. Can you reproduce it
without gst-launch?

Comment 2 Luca Ognibene 2005-01-09 21:13:14 UTC

Yes, i can reproduce it. I'll attach a simple example. If i remove latest
gst_object_unref there are no warnings but... i don't like memleaks :)

Comment 3 Luca Ognibene 2005-01-09 21:14:07 UTC

Created attachment 35755 [details]
test case

Comment 4 Ronald Bultje 2005-01-09 21:46:03 UTC

Created attachment 35756 [details] [review]
possible fix

Does this fix it?

Comment 5 Luca Ognibene 2005-01-09 22:01:45 UTC

yup, fixed, thanks!