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Arm-linux play media fail

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #9

    What distribution are you using on your device ?

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

    MihanM 1 Reply Last reply
    0
    • SGaistS SGaist

      What distribution are you using on your device ?

      MihanM Offline
      MihanM Offline
      Mihan
      wrote on last edited by
      #10

      @sgaist
      Sorry, I'm new to the embedded, I'm not sure what the distribution means. Is the core board on the device? It's NXP ARM 7 cortex-A9. Or the system version? It's Arm-linux kernel 4.1.15.

      1 Reply Last reply
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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #11

        I mean what Linux distribution are you running on the device ?

        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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        • MihanM Offline
          MihanM Offline
          Mihan
          wrote on last edited by
          #12

          @SGaist
          Linux distribution refers to Ubuntu or CentOS? If yes, I just know I'm using Ubuntu 12.04 on VMWare on PC. Is NXP also a Linux distribution?
          I got this message by uname -a :

          root@imx6qsabresd:~# uname -a
          Linux imx6qsabresd 4.1.15 #9 SMP PREEMPT Fri Aug 23 10:07:29 CST 2019 armv7l armv7l armv7l GNU/Linux
          

          Is this what you need?

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #13

            No, NXP is not a Linux distribution, it's a semiconductor manufacturer.

            Do you have somewhere in the documentation provided some information about the software stack running on your device ?

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

            MihanM 2 Replies Last reply
            0
            • SGaistS SGaist

              No, NXP is not a Linux distribution, it's a semiconductor manufacturer.

              Do you have somewhere in the documentation provided some information about the software stack running on your device ?

              MihanM Offline
              MihanM Offline
              Mihan
              wrote on last edited by Mihan
              #14

              @sgaist
              As far as I know, we can get the Linux distribution from /etc/issue.net or /proc/version. But the content is

              cat /etc/issue.net 
              Freescale i.MX Release Distro 4.1.15-2.1.0 %h
              
              cat /proc/version
              Linux version 4.1.15 (vmuser@Linux-host) (gcc version 5.3.0 (GCC) ) #9 SMP PREEMPT Fri Aug 23 10:07:29 CST 2019
              

              I think they had been changed by Freescale, so I can't know the original distribution. Or maybe I can get it from customer service or their forum.

              1 Reply Last reply
              0
              • SGaistS SGaist

                No, NXP is not a Linux distribution, it's a semiconductor manufacturer.

                Do you have somewhere in the documentation provided some information about the software stack running on your device ?

                MihanM Offline
                MihanM Offline
                Mihan
                wrote on last edited by Mihan
                #15

                @sgaist Now I want to cross-compile again, and I got a new ubuntu to do it following Building Qt 5 from Git. When configuring, it couldn't checking for GStreamer: GStreamer support cannot be enabled due to functionality tests!. What should I do?

                Maybe I know what Linux distribution the Freescale use, it's Yocto!

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #16

                  You need the GStreamer development packages installed.

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

                  MihanM 2 Replies Last reply
                  0
                  • SGaistS SGaist

                    You need the GStreamer development packages installed.

                    MihanM Offline
                    MihanM Offline
                    Mihan
                    wrote on last edited by Mihan
                    #17

                    @sgaist I use QT_DEBUG_PLUGINS to see the output:

                    QFactoryLoader::QFactoryLoader() checking directory path "/usr/lib/qt5/plugins/mediaservice" ...
                    QFactoryLoader::QFactoryLoader() looking at "/usr/lib/qt5/plugins/mediaservice/libqtmedia_audioengine.so"
                    Found metadata in lib /usr/lib/qt5/plugins/mediaservice/libqtmedia_audioengine.so, metadata=
                    {
                        "IID": "org.qt-project.qt.mediaserviceproviderfactory/5.0",
                        "MetaData": {
                            "Keys": [
                                "audiocapture"
                            ],
                            "Services": [
                                "org.qt-project.qt.audiosource"
                            ]
                        },
                        "className": "AudioCaptureServicePlugin",
                        "debug": false,
                        "version": 329218
                    }
                    Got keys from plugin meta data ("audiocapture")
                    defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"
                    

                    Does it mean it's running without some plugins?
                    Also I ready to compile qt-gstreamer, cus I have installed GStreamer on Ubuntu bysudo apt-get install, but it doesn't work:

                    checking for GStreamer 1.0... 
                    Project WARNING: pkg-config disabled, can't check package existence
                    Project ERROR: gstreamer-1.0 development package not found
                    GStreamer 1.0 disabled.
                    checking for GStreamer 0.10... 
                    Project WARNING: pkg-config disabled, can't check package existence
                    Project ERROR: gstreamer-0.10 development package not found
                    GStreamer 0.10 disabled.
                    GStreamer support cannot be enabled due to functionality tests!
                    

                    So I use sudo find / -name *gstreamer*-dev* to find the development packet:

                    vmuser@Linux-host:~/qt-everywhere-opensource-src-5.6.2$ sudo find / -name *gstreamer*-dev*
                    /var/cache/apt/archives/libgstreamer0.10-cil-dev_0.9.2-4_all.deb
                    /var/cache/apt/archives/libgstreamer0.10-dev_0.10.36-1ubuntu1_amd64.deb
                    /var/cache/apt/archives/libgstreamer-plugins-base0.10-dev_0.10.36-1ubuntu0.2_amd64.deb
                    /var/cache/apt/archives/libgstreamer-vaapi0.10-dev_0.3.6-0ubuntu2_amd64.deb
                    /var/cache/apt/archives/libgstreamer-plugins-bad0.10-dev_0.10.22.3-2ubuntu2.5_amd64.deb
                    /var/lib/dpkg/info/libgstreamer0.10-dev.md5sums
                    /var/lib/dpkg/info/libgstreamer0.10-dev.list
                    /var/lib/dpkg/info/libgstreamer-plugins-bad0.10-dev.md5sums
                    /var/lib/dpkg/info/libgstreamer-plugins-base0.10-dev.list
                    /var/lib/dpkg/info/libgstreamer0.10-cil-dev.list
                    /var/lib/dpkg/info/libgstreamer-vaapi0.10-dev.md5sums
                    /var/lib/dpkg/info/libgstreamer-vaapi0.10-dev.list
                    /var/lib/dpkg/info/libgstreamer-plugins-bad0.10-dev.list
                    /var/lib/dpkg/info/libgstreamer-plugins-base0.10-dev.md5sums
                    /var/lib/dpkg/info/libgstreamer0.10-cil-dev.md5sums
                    /usr/share/doc/libgstreamer-plugins-bad0.10-dev
                    /usr/share/doc/libgstreamer-plugins-base0.10-dev
                    /usr/share/doc/libgstreamer0.10-cil-dev
                    /usr/share/doc/libgstreamer-vaapi0.10-dev
                    /usr/share/doc/libgstreamer0.10-dev
                    

                    , and I add all these path into $PATH, it also doesn't work
                    (Project WARNING: pkg-config disabled, can't check package existence Project ERROR: gstreamer-1.0 development package not found)
                    .

                    Or should I find the code to cross-compiler the GStreamer and export PKG_CONFIG_PATH for configure?

                    Thank you so much for your support~

                    1 Reply Last reply
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                    • SGaistS SGaist

                      You need the GStreamer development packages installed.

                      MihanM Offline
                      MihanM Offline
                      Mihan
                      wrote on last edited by Mihan
                      #18
                      This post is deleted!
                      1 Reply Last reply
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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #19

                        QtGStreamer is not an official Qt module and unrelated to QtMultimedia.

                        You should rather use GStreamer 1.0.

                        Are you sure these are installed and not just downloaded ?

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

                        MihanM 1 Reply Last reply
                        0
                        • SGaistS SGaist

                          QtGStreamer is not an official Qt module and unrelated to QtMultimedia.

                          You should rather use GStreamer 1.0.

                          Are you sure these are installed and not just downloaded ?

                          MihanM Offline
                          MihanM Offline
                          Mihan
                          wrote on last edited by Mihan
                          #20

                          @sgaist Ok, a bit messy now, let's tidy up first.
                          I only use QMediaPlayer to play a music.
                          On Ubuntu(VMWare), it's working without any error message.
                          But on Arm-Linux(yocto, provided by NXP, maybe), it doesn't work with error message:
                          defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"
                          If Qt Multimedia doesn't relate to Qt GStreamer but the basic GStreamer, how can I check whether the device support Qt Multimedia or not, cus I can play mp3 by mplayer, I can find the basic GStreamer(gstreamer 1.0 )on the device.
                          Or do you have other suggestion to play music with adjusting volume and schedule, cus QSound can not adjust these attributes; QAudioOutput must set any other attributes(sample rate and channel); QSoundEffect can not adjust schedule.
                          BTW, could QMediaPlayer play the wav file?
                          Also, I ran the example /usr/share/qt5/examples/multimedia/imxplayer/imxplayer,it 's a Qt5 demo media palyer integrated with freescale Gstreamer 1.0 framework for X11 graphics.

                          root@imx6qsabresd:~# /usr/share/qt5/examples/multimedia/imxplayer/imxplayer 
                          ** Message: GStreamer version 1.8.1
                          display(/dev/fb0) resolution is (1280x800).
                          ====== OVERLAYSINK: 4.1.6 build on Jun 20 2017 08:56:25. ======
                          ** Message: videosink is overlay
                          

                          It can find the basic GStreamer.

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #21

                            If it's yocto based, then there's likely packages that you can enable in the recipe.

                            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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