AppSink set emit-signal to true when capsfilter created hangs program

[gstreamer-java]

AppSink set emit-signal to true when capsfilter created hangs program

[sarxos]

Oh, I forgot to add. I'm on Ubuntu 14.04 with the following gstreamer dependencies installed. I;m wondering if this problem may be caused by gstreamer 0.10.x packages installed together together with 1.0?

sarxos@sarxos-comp:~/workspace/gst1-java-examples$ dpkg --list | grep gstreamer
ii  bluez-gstreamer                                             4.101-0ubuntu13.1                                   amd64        Bluetooth GStreamer support
ii  gir1.2-gstreamer-1.0                                        1.2.4-0ubuntu1                                      amd64        Description: GObject introspection data for the GStreamer library
ii  gstreamer0.10-alsa:amd64                                    0.10.36-1.1ubuntu2                                  amd64        GStreamer plugin for ALSA
ii  gstreamer0.10-fluendo-mp3:amd64                             0.10.23.debian-3                                    amd64        Fluendo mp3 decoder GStreamer 0.10 plugin
ii  gstreamer0.10-gconf:amd64                                   0.10.31-3+nmu1ubuntu5                               amd64        GStreamer plugin for getting the sink/source information from GConf
ii  gstreamer0.10-nice:amd64                                    0.1.4-1                                             amd64        ICE library (GStreamer 0.10 plugin)
ii  gstreamer0.10-plugins-bad:amd64                             0.10.23-7.2ubuntu1.1                                amd64        GStreamer plugins from the "bad" set
ii  gstreamer0.10-plugins-bad-multiverse                        0.10.21-1ubuntu3                                    amd64        GStreamer plugins from the "bad" set (Multiverse Variant)
ii  gstreamer0.10-plugins-base:amd64                            0.10.36-1.1ubuntu2                                  amd64        GStreamer plugins from the "base" set
ii  gstreamer0.10-plugins-base-apps                             0.10.36-1.1ubuntu2                                  amd64        GStreamer helper programs from the "base" set
ii  gstreamer0.10-plugins-good:amd64                            0.10.31-3+nmu1ubuntu5                               amd64        GStreamer plugins from the "good" set
ii  gstreamer0.10-plugins-ugly:amd64                            0.10.19-2ubuntu5                                    amd64        GStreamer plugins from the "ugly" set
ii  gstreamer0.10-pulseaudio:amd64                              0.10.31-3+nmu1ubuntu5                               amd64        GStreamer plugin for PulseAudio
ii  gstreamer0.10-tools                                         0.10.36-1.2ubuntu3                                  amd64        Tools for use with GStreamer
ii  gstreamer0.10-x:amd64                                       0.10.36-1.1ubuntu2                                  amd64        GStreamer plugins for X11 and Pango
ii  gstreamer1.0-alsa:amd64                                     1.2.4-1~ubuntu2                                     amd64        GStreamer plugin for ALSA
ii  gstreamer1.0-clutter                                        2.0.8-1build1                                       amd64        Clutter PLugin for GStreamer 1.0
ii  gstreamer1.0-fluendo-mp3:amd64                              0.10.23.debian-3                                    amd64        Fluendo mp3 decoder GStreamer 1.0 plugin
ii  gstreamer1.0-libav:amd64                                    1.2.4-1~ubuntu1                                     amd64        libav plugin for GStreamer
ii  gstreamer1.0-nice:amd64                                     0.1.4-1                                             amd64        ICE library (GStreamer plugin)
ii  gstreamer1.0-plugins-bad:amd64                              1.2.4-1~ubuntu1                                     amd64        GStreamer plugins from the "bad" set
ii  gstreamer1.0-plugins-bad-faad:amd64                         1.2.4-1~ubuntu1                                     amd64        GStreamer faad plugin from the "bad" set
ii  gstreamer1.0-plugins-bad-videoparsers:amd64                 1.2.4-1~ubuntu1                                     amd64        GStreamer videoparsers plugin from the "bad" set
ii  gstreamer1.0-plugins-base:amd64                             1.2.4-1~ubuntu2                                     amd64        GStreamer plugins from the "base" set
ii  gstreamer1.0-plugins-base-apps                              1.2.4-1~ubuntu2                                     amd64        GStreamer helper programs from the "base" set
ii  gstreamer1.0-plugins-good:amd64                             1.2.4-1~ubuntu1                                     amd64        GStreamer plugins from the "good" set
ii  gstreamer1.0-plugins-ugly:amd64                             1.2.3-2build1                                       amd64        GStreamer plugins from the "ugly" set
ii  gstreamer1.0-pulseaudio:amd64                               1.2.4-1~ubuntu1                                     amd64        GStreamer plugin for PulseAudio
ii  gstreamer1.0-tools                                          1.2.4-0ubuntu1                                      amd64        Tools for use with GStreamer
ii  gstreamer1.0-x:amd64                                        1.2.4-1~ubuntu2                                     amd64        GStreamer plugins for X11 and Pango
ii  libgstreamer-plugins-bad0.10-0:amd64                        0.10.23-7.2ubuntu1.1                                amd64        GStreamer shared libraries from the "bad" set
ii  libgstreamer-plugins-bad1.0-0:amd64                         1.2.4-1~ubuntu1                                     amd64        GStreamer development files for libraries from the "bad" set
ii  libgstreamer-plugins-base0.10-0:amd64                       0.10.36-1.1ubuntu2                                  amd64        GStreamer libraries from the "base" set
ii  libgstreamer-plugins-base1.0-0:amd64                        1.2.4-1~ubuntu2                                     amd64        GStreamer libraries from the "base" set
ii  libgstreamer-plugins-base1.0-0:i386                         1.2.4-1~ubuntu2                                     i386         GStreamer libraries from the "base" set
ii  libgstreamer-plugins-good1.0-0:amd64                        1.2.4-1~ubuntu1                                     amd64        GStreamer development files for libraries from the "good" set
ii  libgstreamer0.10-0:amd64                                    0.10.36-1.2ubuntu3                                  amd64        Core GStreamer libraries and elements
ii  libgstreamer1.0-0:amd64                                     1.2.4-0ubuntu1                                      amd64        Core GStreamer libraries and elements
ii  libgstreamer1.0-0:i386                                      1.2.4-0ubuntu1                                      i386         Core GStreamer libraries and elements
ii  libreoffice-avmedia-backend-gstreamer                       1:4.2.8-0ubuntu4                                    amd64        GStreamer backend for LibreOffice
ii  phonon-backend-gstreamer:amd64                              4:4.7.80-0ubuntu2~ubuntu14.04                       amd64        Phonon GStreamer 1.0.x backend
ii  phonon-backend-gstreamer-common:amd64                       4:4.7.80-0ubuntu2~ubuntu14.04                       amd64        Phonon GStreamer 1.0.x backend icons
ii  phonon-backend-gstreamer1.0                                 4:4.7.80-0ubuntu2~ubuntu14.04                       all          transitional package

[neilcsmith-net]

Thanks for the report. Unfortunately, I cannot replicate the issue on Ubuntu 16.04.

Can you confirm, which version of gst1-java-core, which version of the JDK and which version of JNA you're using?

It should not have anything to do with GStreamer 0.10 - they're basically two separate libraries.

[sarxos]

After seeing it working well when I've put breakpoint watch on GValue fields, I supposed this bug may be one of these which are impossible to reproduce on other machines, but still decided to report it here just to let you know that such problem may appear.

I'm using newest (2f09960) snapshot of gst1-java-code:

sarxos@sarxos-comp:~/workspace/gst1-java-core$ git log | head -n 4
commit 2f099605e6689b644bfe65c3e82efcd01de41b2d
Merge: c179abd a0f1296
Author: Neil C Smith <...>
Date:   Thu Dec 1 16:38:40 2016 +0000

JDK is Oracle's 1.8.0_51:

sarxos@sarxos-comp:~/workspace/gst1-java-core$ java -version
java version "1.8.0_51"
Java(TM) SE Runtime Environment (build 1.8.0_51-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode)

JNA is 4.1.0:

sarxos@sarxos-comp:~/workspace/webcam-capture-parent/webcam-capture-drivers/driver-gst1$ mvn dependency:tree | grep jna
[INFO] +- net.java.dev.jna:jna:jar:4.1.0:compile

[sarxos]

Just FYI, problem disappeared after upgrading to JNA 4.2.2 :) Thank you for your support since I wouldn't try it if you did not ask for the JNA version!

[sarxos]

Therefore I'm closing this issue. Thank you!

[neilcsmith-net]

Thanks! Interesting findings.