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Usb camera integration in qt4

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  • V Offline
    V Offline
    vattipalli
    wrote on last edited by
    #1

    Hi,
    I am using qt-everywhere-opensource-src-4.8.5 and cross compiled it for ARM Ti-Am335x processor.
    I am able to run some qt example & demos . Right now can I inteface a usb camera in qt4.8.5.
    I am running Linux on development board and Ubuntu 12.04 on my system.

    Thanks In Advance.

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

      Hi,

      You should have a look at the QtMultimedia module for that.

      Hope it helps

      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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      • V Offline
        V Offline
        vattipalli
        wrote on last edited by
        #3

        HI,
        finally i found qt-gstreamer to stream video.
        In x86 i could able to record video from usb-camera.
        how can i stream video using qt-gstreamer.

        for arm board i am facing problems in gstreamer plugins....for recording also.

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

          What problem ?

          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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          • V Offline
            V Offline
            vattipalli
            wrote on last edited by
            #5

            root@Wega-AM335x:~:$ ./recorder -qws

            (recorder:749): GStreamer-CRITICAL **: gst_caps_get_structure: assertion `GST_IS_CAPS (caps)' failed

            ** (recorder:749): CRITICAL **: No headers or buffers on pad oggmux0:sink_1538339170

            I am not able to stop the video. when i give ctrl+c. the file is empty file without any data.

            And when i am playing the player

            In terminal

            root@Wega-AM335x:~:$ ./player -qws
            start: could not open overlay

            In lcd
            video is palying but i cant see the video.

            I am saying video is playing because playing time is moving. I could able to forward the video playing time . But i cant see the video.

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

              You should contact the original author of Qt-GStreamer

              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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