Crosscompile QtMultimedia for Raspberry Pi

arsinte_andrei

@SGaist
after a lot more digging here is what I've just found out

delete the libraries containing the unwanted elements (like /usr/lib/arm-linux-gnueabihf/gstreamer-1.0/libgstomx.so)
delete the cache ~/.cache/gstreamer-1.0/registry.arm.bin
re-run the application

all are useless - at least in my case.

adapt QtMultimedia source code, see and re-compile, cf. http://code.qt.io/cgit/qt/qtmultimedia.git/tree/src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp?id=eedba02427aa4750011f010319bf34959ecbd3e1&h=5.10.0#n168

and changed from "autoaudiosink" to "alsasink"
is giving this now:

~/raspi/qt5/bin/qmake -r
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_lib_multimedia.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_lib_multimedia_private.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_lib_multimediagsttools_private.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_lib_multimediawidgets.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_lib_multimediawidgets_private.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_gstaudiodecoder.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_gstcamerabin.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_gstmediacapture.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_gstmediaplayer.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_mockserviceplugin1.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_mockserviceplugin2.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_mockserviceplugin3.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_mockserviceplugin4.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_mockserviceplugin5.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_qtaudio_alsa.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_qtmedia_pulse.pri: No such file or directory
Cannot read /home/andrei/raspi/qtmultimedia/mkspecs/modules-inst/qt_plugin_qtmultimedia_m3u.pri: No such file or directory

Running configuration tests...
Done running configuration tests.

Configure summary:

Qt Multimedia:
  ALSA ................................... yes
  GStreamer 1.0 .......................... yes
  GStreamer 0.10 ......................... no
  Video for Linux ........................ yes
  OpenAL ................................. no
  PulseAudio ............................. yes
  Resource Policy (libresourceqt5) ....... no
  Windows Audio Services ................. no
  DirectShow ............................. no
  Windows Media Foundation ............... no

Note: Dropped compiler flags '-pthread' when detecting library 'gstreamer'.

Note: Dropped compiler flags '-pthread' when detecting library 'gstreamer_app'.

Qt is now configured for building. Just run 'make'.
Once everything is built, Qt is installed.
You should NOT run 'make install'.
Note that this build cannot be deployed to other machines or devices.

Prior to reconfiguration, make sure you remove any leftovers from
the previous build.

Reading /home/andrei/.local/share/Trash/files/qtmultimedia (1)/src/src.pro
 Reading /home/andrei/.local/share/Trash/files/qtmultimedia (1)/src/multimedia/multimedia.pro
 Reading /home/andrei/.local/share/Trash/files/qtmultimedia (1)/src/multimediawidgets/multimediawidgets.pro
 Reading /home/andrei/.local/share/Trash/files/qtmultimedia (1)/src/gsttools/gsttools.pro
Project ERROR: Could not find feature alsa.

So.. where is Alsa??? where I can find it? how can I put it there??

SGaist

Is this on your desktop machine or on your Pi ?

arsinte_andrei

@SGaist this is when I try to crosscompile QtMultimedia after modifying that line there - when running

~/raspi/qt5/bin/qmake -r

SGaist

Take a look at the tests to see what failed exactly.

arsinte_andrei

@SGaist where is that... as you can see here

Configure summary:

Qt Multimedia:
  ALSA ................................... yes
  GStreamer 1.0 .......................... yes
  GStreamer 0.10 ......................... no
  Video for Linux ........................ yes
  OpenAL ................................. no
  PulseAudio ............................. yes
  Resource Policy (libresourceqt5) ....... no
  Windows Audio Services ................. no
  DirectShow ............................. no
  Windows Media Foundation ............... no

the GStreamer 1 and ALSA did pas the test...and aftre that alsa is failing why???

SGaist

Read the config.log file

arsinte_andrei

until I find a proper way of doing it for Raspberry Pi.. here you have a workaround this problem - delete the libgtsomx.so I had to delete also the libgstomx-rpi.so then delete the cache.
but this is just a workaround and making it to work.. I do not know if that is the proper way of doing it...

arsinte_andrei

@SGaist said in Crosscompile QtMultimedia for Raspberry Pi:

Read the config.log file

Sorry but no config file found inside the qtmultimedia folder

SGaist

You don't have anything like that in the build folder ?

arsinte_andrei

@SGaist OK... now I have a BIG question... where is that??

SGaist

The build folder ? The folder in which you called qmake to build the QtMultimedia module.