Qt 5.4.0 - QtMultimedia Camera Example not working on BeagleBone Black
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Hi all,
I have a BeagleBone Black I am running Linux 3.8.13 with gstreamer-0.10.36 and Qt 5.4.0. I am trying to get the sample camera application from qt-everywhere-opensource-src/5.4.0/qtmultimedia/examples running. I had no errors cross-building but when I run the application on the board I get the following errors:
beaglebone:~# ./camera -platform linuxfb -plugin evdevtouch:/dev/input/touchscreen0 ** (camera:239): CRITICAL **: gst_photography_set_focus_mode: assertion 'photo != NULL' failed This plugin does not support setParent! (camera:239): GStreamer-CRITICAL **: gst_caps_unref: assertion 'caps != NULL' failed ** (camera:239): CRITICAL **: gst_missing_encoder_message_new: assertion '!gst_caps_is_any (encode_caps)' failed (camera:239): GStreamer-CRITICAL **: gst_element_post_message: assertion 'message != NULL' failed CameraBin error: "Your GStreamer installation is missing a plug-in."
I have validated the camera using Gstreamer pipelines (using v4l2src and fbdevsink to sink to the display). So I know the camera is working.
I have built in almost all plugins from Gstreamer base/good/bad:
beaglebone:~# gst-inspect-0.10 ... Total count: 181 plugins (1 blacklist entry not shown), 1028 features
And validated the camerabin plugins are there from plugins-bad:
beaglebone:~# gst-inspect-0.10 | grep camera camerabin2: viewfinderbin: Viewfinder Bin camerabin2: wrappercamerabinsrc: V4l2 camera src element for camerabin camerabin2: camerabin2: CameraBin2 camerabin: camerabin: Camera Bin bayer: bayer2rgb: Bayer to RGB decoder for cameras
The only blacklist plugin is the vorbisdec plugin due to a conflict in the GstVorbisDec class set by the vorbis and tremor plugins (http://lists.freedesktop.org/archives/gstreamer-bugs/2012-April/089483.html). That should not be relevant to this error though.
I have also validated that the photography library exists and there are no missing dependencies:
beaglebone:/usr/lib# ll libgstphoto* -rwxr-xr-x 1 root root 1383 Mar 12 19:42 libgstphotography-0.10.la lrwxrwxrwx 1 root root 32 Mar 12 19:42 libgstphotography-0.10.so -> libgstphotography-0.10.so.23.0.0 lrwxrwxrwx 1 root root 32 Mar 12 19:42 libgstphotography-0.10.so.23 -> libgstphotography-0.10.so.23.0.0 -rwxr-xr-x 1 root root 20028 Mar 12 19:42 libgstphotography-0.10.so.23.0.0 beaglebone:/usr/lib# ldd libgstphotography-0.10.so libgstreamer-0.10.so.0 => /usr/lib/libgstreamer-0.10.so.0 (0xb6e29000) libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0xb6ddc000) libffi.so.6 => /usr/lib/libffi.so.6 (0xb6dcf000) libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0xb6dc3000) libgthread-2.0.so.0 => /usr/lib/libgthread-2.0.so.0 (0xb6dba000) libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb6ca4000) libpthread.so.0 => /lib/libpthread.so.0 (0xb6c84000) libxml2.so.2 => /usr/lib/libxml2.so.2 (0xb6bb0000) libdl.so.2 => /lib/libdl.so.2 (0xb6ba4000) libz.so.1 => /lib/libz.so.1 (0xb6b8d000) libm.so.6 => /lib/libm.so.6 (0xb6b1b000) libc.so.6 => /lib/libc.so.6 (0xb69e3000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb69ca000) /lib/ld-linux-armhf.so.3 (0xb6ee6000)
Any ideas?
Thanks