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QtMultimedia cross compiling libqgsttools.so is missing

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cross compileqtmultimediagstreamer
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  • ILI Offline
    ILI Offline
    IL
    wrote on last edited by
    #1

    Hi,
    I am working on QT cross compilation to beaglbone like platform, when i try to disply video on my HMI screen, i have croos compilied all gstreamer related package, this is include glib, zlib, gst-plugin-base, orc, libffi and gst-libav.
    QT configurationidentify gstreamer version 1.0 and enable it. but when I run make for compilation, it cannot identify gstreamer.
    I also cann see the line "checking for gstreamer... no"

    please advice,
    best regards,
    IL

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Add -v to configure to see where the gstreamer test is failing. Probably not finding your cross-compiled gstreamer

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      ILI 1 Reply Last reply
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      • SGaistS SGaist

        Hi,

        Add -v to configure to see where the gstreamer test is failing. Probably not finding your cross-compiled gstreamer

        ILI Offline
        ILI Offline
        IL
        wrote on last edited by
        #3

        @SGaist - my ./configure is already in verbos mode, the only notification during compilation about gstreamer is the one that I have mention above,
        "checking for gstreamer... no"

        Thanks,
        IL

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          You need to take a look at the tests output and find the gstreamer part

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          ILI 1 Reply Last reply
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          • SGaistS SGaist

            You need to take a look at the tests output and find the gstreamer part

            ILI Offline
            ILI Offline
            IL
            wrote on last edited by
            #5

            @SGaist - Hi again
            this is the test output

            GStreamer 1.0 auto-detection... ()
            arm-none-linux-gnueabi-g++ -c -pipe -pipe -Os -mthumb -g -march=armv7-a -mfpu=vfp -mcpu=cortex-a8 -O2 -pthread -pthread -pthread -pthread -pthread -Wall -W -fPIC -I. -I/usr/include/gstreamer-1.0 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I../../../mkspecs/devices/arm-none-linux-gnueabi -o gstreamer.o gstreamer.cpp
            cc1plus: warning: include location "/usr/include/gstreamer-1.0" is unsafe for cross-compilation
            cc1plus: warning: include location "/usr/include/glib-2.0" is unsafe for cross-compilation
            arm-none-linux-gnueabi-g++ -Wl,-O1 -o gstreamer gstreamer.o -lrt -lgstaudio-1.0 -lgstvideo-1.0 -lgstbase-1.0 -lgstpbutils-1.0 -lgstreamer-1.0 -lgobject-2.0 -lglib-2.0
            GStreamer 1.0 enabled.

            looks like my cross compiling taking files from the wrong location for gstremer.
            is there any enviorenment flags for outside packages that i need to set for cross compiling?
            like ZLIB_LIBS, ZLIB_CFLAGS, ORC_LIBS, GST_CFLAGS etc...

            Best regards,
            IL

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              What's your configuration line ?

              Surprisingly It says GStreamer is enabled

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

              ILI 1 Reply Last reply
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              • SGaistS SGaist

                What's your configuration line ?

                Surprisingly It says GStreamer is enabled

                ILI Offline
                ILI Offline
                IL
                wrote on last edited by
                #7

                @SGaist - Right, but when compilation is running, it recheck for gstreamer and decide to not compile it.
                As I mention above, this line is from compilation
                "checking for gstreamer... no"

                thanks

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  What version of Qt is it ? GStreamer 1.0 support is pretty recent so you might have to enable it when configuring depending on your Qt version

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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