Qt multimeia GStreamer-Critical error!


  • Qt Champions 2018

    @JiujiuTong said in Qt multimeia GStreamer-Critical error!:

    but gstreamer0.10-plugins-bad, gstreamer0.10-plugins-ugly no long available

    Are you sure: https://launchpad.net/ubuntu/xenial/+package/gstreamer0.10-plugins-ugly ?
    Did you activate "universe", "restricted" and "multiverse" repositories?



  • @jsulm
    i have check all repositories in ubuntu software tab.
    are there other ways to check the repositories ?


  • Qt Champions 2018

    @JiujiuTong Did you activate universe repository?
    If so then

    sudo apt-get install gstreamer0.10-plugins-ugly
    

    should be enough.
    I'm usually using synaptic graphical tool - you can search for gstreamer0.10-plugins-ugly there as well and check whether universe repository is activated.
    Also you can use

    apt-cache search gstreamer0.10-plugins-ugly
    

    to search.



  • @jsulm
    i have checked the four repositories in system settings ->software& updates->ubuntu software tab.
    but failed to run sudo apt-get install gstreamer0.10-plugins-ugly
    info:
    Package gstreamer0.10-plugins-ugly is not available, but is referred to by another package.
    This may mean that the package is missing, has been obsoleted, or
    is only available from another source

    E: Package 'gstreamer0.10-plugins-ugly' has no installation candidate


  • Qt Champions 2018

    @JiujiuTong OK, looks like it is really not available on Ubuntu 16.04



  • @jsulm @SGaist @mrjj
    Then what should i do with my project ?
    is there anyway to combine the QT with gstreamer1.0 ?


  • Qt Champions 2018

    @JiujiuTong Can you play this file with, for example, VLC?


  • Lifetime Qt Champion

    IIRC, since 5.8 the backend uses GStreamer 1.0. Otherwise, you can re-build the QtMultmedia module yourself against GStreamer 1.0

    On a side note, unless you need specific features or bug fixes of more recent versions, why not use your distribution provided Qt for development ?



  • @jsulm
    yes,i can play file with VLC, but there are some other logical with my project, and i need to control playlist and other thing. so i think the best way is use functions provided by QT.


  • Qt Champions 2018

    @JiujiuTong I didn't say you should use VLC - I only wanted to know whether the file is broken.



  • @jsulm
    the file is OK, it can be played by double click



  • @SGaist
    sorry for my poor English, do you mean i should use the latest QT version ?


  • Lifetime Qt Champion

    It depends on what you need, either use the Qt from your distribution or indeed a more recent version. Current is 5.8.0 and 5.9Beta2 is available.



  • @SGaist
    well ,Thank you
    i will try to compile QT5.7.1 against GStreamer 1.0. can you give me some instructions? thank you!
    another thing is how to support hardware-accelerate? or it support it by default,but the default behavior of Gstreamer seem not enable hardware-accelerate.
    my project finally runs on raspberry pi3, i do a lot efforts to make the QT5.7 deployed on rpi3. i'm worried about QT5.8....
    i find a description:
    1,install gstream1.0*
    install libgstreamer1.0*
    2, cd qt5.7.1
    run ./configure -gstreamer 1.0
    make
    make install
    is it right?


  • Lifetime Qt Champion

    You don't need to re-build everything, if you already have a build then just re-build the QtMultimedia module.



  • @SGaist
    what should i do if i just want to rebuild QtMultimeida module with Gstreamer1.0? i have installed a QT with older GStreamer.
    thank you !



  • @SGaist @jsulm @mrjj
    i finish the reinstall work with all modules rebuild,the output result is still NG.
    play the video with gstreamer command the output is below:
    gst-play-1.0 /home/tong/build-FMT-gstream1_0-Debug/src/Wildlife.wmv
    Press 'k' to see a list of keyboard shortcuts.
    Now playing /home/tong/build-FMT-gstream1_0-Debug/src/Wildlife.wmv
    libva info: VA-API version 0.39.0
    libva info: va_getDriverName() returns 0
    libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
    libva info: Found init function __vaDriverInit_0_39
    libva info: va_openDriver() returns 0
    Redistribute latency...
    Redistribute latency...
    Redistribute latency...
    0:00:30.0 / 0:00:30.0
    Reached end of play list.
    the video can play normally.

    while the output of my project (also the same result with QT example):
    libva info: VA-API version 0.39.0
    libva info: va_getDriverName() returns 0
    libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
    libva info: Found init function __vaDriverInit_0_39
    libva info: va_openDriver() returns 0
    just pops a blackscreen ,no video shows. strange...

    when i try to install gstreamer1.0
    there is an error:
    gstreamer1.0-hybris:i386:Depends: libmedia1:i386 but it is no going to be installed
    E: Unable to correct problems, you have held broken packages.


  • Lifetime Qt Champion

    Is that on your Pi or on your desktop ? If on your Pi then there's something strange since it talks about a i386 version of the package and the Pi is an ARM based machine.


  • Qt Champions 2018

    @JiujiuTong said in Qt multimeia GStreamer-Critical error!:

    gstreamer1.0-hybris:i386:Depends: libmedia1:i386

    Are you trying to install x86 (32bit) version?



  • @SGaist @jsulm
    currently , i just test on my ubuntu. my host is x64bit. i install gstreamer1.0 with command sudo apt-get install gstreamer1.0
    and can help give steps about how to rebuild only qtmultimedia module with gstreamer1.0?



  • This post is deleted!

  • Lifetime Qt Champion

    Please show the command you use to install the GStreamer packages.



  • @SGaist
    the command line is :
    1,sudo apt-get install gstreamer1.0
    2,sudo apt-get install libgstreamer-plugins-good1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer1.0-dev libgstreamer1.0-0 libqgsttools-p1 libqt5multimedia5-plugins gstreamer1.0-libav libges-1.0-dev libgstreamer-plugins-bad1.0-dev libgstreamermm-1.0-0v5 libgstreamermm-1.0-dev libqt5gstreamer-1.0-0 libqt5gstreamer-dev libqt5gstreamerquick-1.0-0 libqt5gstreamerui-1.0-0 libqt5gstreamerutils-1.0-0 libqtglib-2.0-0 libqtgstreamer-1.0-0 libqtgstreamer-dev libqtgstreamerui-1.0-0 libqtgstreamerutils-1.0-0 qtgstreamer-plugins-qt5 qtgstreamer-plugins ubuntu-restricted-extras
    some packages may be useless,i don't know exactly.
    when trying to rebuild QtMultimedia module with gstreamer1.0 ,following the steps:
    1, run command1 && command 2,
    2, cd qt5.7.1
    run ./configure -gstreamer 1.0
    (NO need to rebuild qtbase and other modules.)
    3, cd to qtmultimedia folder
    run qmake
    run make install
    is it right? thank you !


  • Lifetime Qt Champion

    Which qmake did you use ?



  • @SGaist
    the qmake is the path of qt5.7.1 installed ,it was generated by the last make install (with default gsteamer 0.1), is it right way as you mentioned ¨just re-build the QtMultimedia module. ¨?


  • Lifetime Qt Champion

    Which version exactly ? You seem to have started by configuring a new version of Qt rather than build the QtMultimedia module with the version your already installed.



  • @SGaist
    the version is QT5.7.1 i have install with QtMultimedia using gstreamer0.1.
    i try to rebuild the QtMultimedia module with the version i already installed,
    should i parse what parameters to let the QtMultimedia module know that it should use gstreamer1.0 instead of gstreamer0.1? can you give instructions please?



  • @SGaist @jsulm
    thank you for your great support,
    but i found a strange thing:
    i can not play the .wmv or .mp4 video even when i try to use QT5.8(install by qt-opensource-linux-x64-5.8.0.run, host is ubuntu 16.04),
    after i install Qt5.8, i use the Qtcreator4.2.1 to open the project player under multimediawidgets Example, run the example, and open a Wildlife.wmv(example video under windows 7), try to play it ,just no video .output is :
    libva info: VA-API version 0.39.0
    libva info: va_getDriverName() returns 0
    libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so
    libva info: Found init function __vaDriverInit_0_39
    libva info: va_openDriver() returns 0

    I installed gstreamer with following commands:
    1,sudo apt-get install gstreamer1.0
    2,sudo apt-get install libgstreamer-plugins-good1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer1.0-dev libgstreamer1.0-0 libqgsttools-p1 libqt5multimedia5-plugins gstreamer1.0-libav libges-1.0-dev libgstreamer-plugins-bad1.0-dev libgstreamermm-1.0-0v5 libgstreamermm-1.0-dev libqt5gstreamer-1.0-0 libqt5gstreamer-dev libqt5gstreamerquick-1.0-0 libqt5gstreamerui-1.0-0 libqt5gstreamerutils-1.0-0 libqtglib-2.0-0 libqtgstreamer-1.0-0 libqtgstreamer-dev libqtgstreamerui-1.0-0 libqtgstreamerutils-1.0-0 qtgstreamer-plugins-qt5 qtgstreamer-plugins ubuntu-restricted-extras
    can you check it for me? the video is OK, i can play it with gst-play-1.0 or with double click.
    ps: i try to play a *.mp3, it works well, and there are sounds playing with no pictures if the format is mp4


Log in to reply
 

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.