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camera capture BA81 format

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  • gfxxG Offline
    gfxxG Offline
    gfxx
    wrote on last edited by
    #1

    {linux kernel 3.19 QT5.6} QT V4L works perfect.... if I run camera example receive these error

    CameraBin error: "Device '/dev/video0' cannot capture in the specified format"
    CameraBin error: "Could not negotiate format"
    libv4l2: error set_fmt gave us a different result then try_fmt!
    CameraBin error: "Device '/dev/video0' cannot capture in the specified format"
    CameraBin error: "Could not negotiate format"
    

    I know BA81 issue for uvcvideo driver in linux... but in newest kernel I think is solved .... (V4L works very well) .... there is some possibility to set the right format conversion in QT5.6??

    Regards
    Giorgio

    bkt

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

      Hi,

      You should also check with GStreamer directly to see if it works. Qt's multimedia backend is GStreamer on Linux.

      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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      • gfxxG Offline
        gfxxG Offline
        gfxx
        wrote on last edited by gfxx
        #3

        linux ubuntu ba81/gstreamer is not supported ... I install it but the result is the same ... program that use gstreamer return bad input format ....

        Therre is some trik or must use v4l.cpp and buffered image with de-bayer protocol??

        regards
        Giorgio

        bkt

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