[Bug 785104] New: multiple instances of omxmjpegdec seems not work well

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=785104

Bug ID: 785104
Summary: multiple instances of omxmjpegdec seems not work well
Classification: Platform
Product: GStreamer
Version: 1.12.2
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-omx
Assignee: gstreamer-***@lists.freedesktop.org
Reporter: ***@nifty.ne.jp
QA Contact: gstreamer-***@lists.freedesktop.org
GNOME version: ---

I'm not sure whether it is a problem of GStreamer or not.
On Raspberry Pi3, multiple instances of omxmjpegdec seems not work well at the
same time.

How to reproduce:
Use 2 of separate Terminals and a Photo JPEG movie file.
(I used 640x480 30fps)

On the one Terminal:
gst-launch-1.0 filesrc location=/home/pi/Videos/Fish.mov ! decodebin !
glimagesink

On the other Terminal:
gst-launch-1.0 filesrc location=/home/pi/Videos/Fish.mov ! decodebin !
videocrop bottom=100 ! glimagesink

(NOTE: videocrop is used to show first (background) video)

Result:
These movies are not played well, and many "Frame is too late" messages are
shown (GST_DEBUG=2).
---------------------------------------------------------------------
omxvideodec
gstomxvideodec.c:1387:gst_omx_video_dec_loop:<omxmjpegdec-omxmjpegdec0> Frame
is too late, dropping
---------------------------------------------------------------------

On 1.12.0, same problem was seen.
I saw a message from gst_omx_port_wait_enabled_unlocked() several times,
but since updated to 1.12.2, not yet seen.
---------------------------------------------------------------------
Timeout waiting for ... port ... to be enabled
---------------------------------------------------------------------


The combination of a Photo JPEG and a H.264 movie files is no problem.
Also, the combination of two H.264 movie files is no problem.
2 instances of omxplayer also works well for same (used in above test) Photo
JPEG movie file.

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=785104

--- Comment #1 from Yuji Kuwabara <***@nifty.ne.jp> ---
One more comment.
Using jpegdec (instead of omxmjpegdec), works fine.

["GStreamer" (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=785104

GStreamer system administrator <***@gstreamer.net> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |OBSOLETE

--- Comment #2 from GStreamer system administrator <***@gstreamer.net> ---
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