[Bug 756288] New: avenc_jpeg2000 and avdec_jpeg2000 can't negotiate caps
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Fri Oct 9 06:52:46 PDT 2015
https://bugzilla.gnome.org/show_bug.cgi?id=756288
Bug ID: 756288
Summary: avenc_jpeg2000 and avdec_jpeg2000 can't negotiate caps
Classification: Platform
Product: GStreamer
Version: 1.6.0
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-libav
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: poganoe at mail.ru
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
Simple pipeline like this doesn't work:
gst-launch-1.0 videotestsrc ! videoconvert ! avenc_jpeg2000 ! avdec_jpeg2000 !
fakesink
It gives internal dataflow error.
With GST_DEBUG=5 I see this:
0:00:07.732583626 5411 0xa0fa00 DEBUG bin
gstbin.c:883:find_message:<pipeline0> no message found matching types 00001000
If I remove avdec from pipeline I can see this:
c:3074:gst_pad_query_caps_default:<avenc_jpeg2000-0:src>[00m using caps
0x1586540 unknown/unknown
0:00:00.240567066 [334m 5451[00m 0x1546a00 [37mDEBUG [00m
[00;01;31;41m GST_PADS
gstpad.c:3272:gst_pad_query_default:<avenc_jpeg2000-0:src>[00m not forwarding
0x1586680 (caps) query
0:00:00.240574648 [334m 5451[00m 0x1546a00 [37mDEBUG [00m
[00;01;31;41m GST_PADS
gstpad.c:3836:gst_pad_query:<avenc_jpeg2000-0:src>[00m sent query 0x1586680
(caps), result 1
0:00:00.240581884 [334m 5451[00m 0x1546a00 [37mDEBUG [00m [00;01;34m
GST_CAPS
gstutils.c:2845:gst_pad_query_caps:<avenc_jpeg2000-0:src>[00m query returned
unknown/unknown
It seems to me that avenc_jpeg2000 for some reason has sink caps
"unknown/unkown". Source caps for avdec_jpeg2000 also are "unknown/unknown".
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