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GStreamer with QT6

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  • J JoeCFD
    12 Jul 2024, 16:03

    Linux or Windows?

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    Joe von Habsburg
    wrote on 15 Jul 2024, 20:33 last edited by
    #4

    @JoeCFD said in GStreamer with QT6:

    Linux or Windows?

    for windows.

    @SGaist said in GStreamer with QT6:

    QtMultimedia backend or use GStreamer explicitly in your code ?

    when I use QtMultimedia rtsp stream is lagging or freezing. but If I use gstream there is a no problem. How can I implement my code or how can I watch stream like gstream quality ?

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      JoeCFD
      wrote on 16 Jul 2024, 10:57 last edited by JoeCFD
      #5

      I think pkg can be applied in Windows as well. Try the following example

      find_package( PkgConfig REQUIRED )
      pkg_search_module( GSTREAMER REQUIRED IMPORTED_TARGET gstreamer-1.0 >= 1.22 )
      pkg_search_module( GSTREAMER-VIDEO REQUIRED IMPORTED_TARGET gstreamer-video-1.0 >= 1.22 )
      target_link_libraries( ${PROJECT_NAME} PkgConfig::GSTREAMER
      PkgConfig::GSTREAMER-VIDEO )

      The path in the pkg files of gstreamer might not be right. However, it can be changed in all pkg files. I guess relative path is good enough and works for me on Linux. You need to figure out how to set pkg path on Windows.

      J 1 Reply Last reply 17 Jul 2024, 06:34
      0
      • J JoeCFD
        16 Jul 2024, 10:57

        I think pkg can be applied in Windows as well. Try the following example

        find_package( PkgConfig REQUIRED )
        pkg_search_module( GSTREAMER REQUIRED IMPORTED_TARGET gstreamer-1.0 >= 1.22 )
        pkg_search_module( GSTREAMER-VIDEO REQUIRED IMPORTED_TARGET gstreamer-video-1.0 >= 1.22 )
        target_link_libraries( ${PROJECT_NAME} PkgConfig::GSTREAMER
        PkgConfig::GSTREAMER-VIDEO )

        The path in the pkg files of gstreamer might not be right. However, it can be changed in all pkg files. I guess relative path is good enough and works for me on Linux. You need to figure out how to set pkg path on Windows.

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        Joe von Habsburg
        wrote on 17 Jul 2024, 06:34 last edited by Joe von Habsburg
        #6

        @JoeCFD said in GStreamer with QT6:

        pkg_search_module(

        C:\Users\X\Desktop\XX\XXX\CMakeLists.txt:13: error: A required package was not found

        Call stack:
        C:\Users\X\Desktop\XX\XXX\CMakeLists.txt:13 (pkg_check_modules)
        C:/Qt/Tools/CMake_64/share/cmake-3.27/Modules/FindPkgConfig.cmake:829 (_pkg_check_modules_internal)
        C:/Qt/Tools/CMake_64/share/cmake-3.27/Modules/FindPkgConfig.cmake:607 (message)

        2b49ad4e-ac71-40f5-b1be-35fa9d3b91a1-image.png

        7a38fc86-8c58-4454-bd92-f6e2fa88e774-image.png

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          Joe von Habsburg
          wrote on 17 Jul 2024, 07:49 last edited by
          #7

          Call stack:
          C:\Users\X\Desktop\XX\XXX\CMakeLists.txt:13: error: None of the required 'gstreamer-1.0' found

          C:\Users\X\Desktop\XX\XXX\CMakeLists.txt:14: error: None of the required 'gstreamer-video-1.0' found

          J 1 Reply Last reply 17 Jul 2024, 11:20
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          • J Joe von Habsburg
            17 Jul 2024, 07:49

            Call stack:
            C:\Users\X\Desktop\XX\XXX\CMakeLists.txt:13: error: None of the required 'gstreamer-1.0' found

            C:\Users\X\Desktop\XX\XXX\CMakeLists.txt:14: error: None of the required 'gstreamer-video-1.0' found

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            JoeCFD
            wrote on 17 Jul 2024, 11:20 last edited by JoeCFD
            #8

            @Joe-von-Habsburg I edited my post. You need to figure out how to set pkg path on Windows.

            On linux:
            export PKG_CONFIG_PATH=/opt/thirdParties/gstreamer/lib/pkgconfig:$PKG_CONFIG_PATH

            it is easier to use pkg config to add packages into a project because all dependencies are taken care of. But you can add all libs manually as well.

            J 2 Replies Last reply 17 Jul 2024, 12:43
            0
            • J JoeCFD
              17 Jul 2024, 11:20

              @Joe-von-Habsburg I edited my post. You need to figure out how to set pkg path on Windows.

              On linux:
              export PKG_CONFIG_PATH=/opt/thirdParties/gstreamer/lib/pkgconfig:$PKG_CONFIG_PATH

              it is easier to use pkg config to add packages into a project because all dependencies are taken care of. But you can add all libs manually as well.

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              Joe von Habsburg
              wrote on 17 Jul 2024, 12:43 last edited by
              #9

              @JoeCFD said in GStreamer with QT6:

              I edited my post.

              2ea2964c-f599-4cd6-ba4e-632e5eab64dc-image.png

              316c8b1b-abc1-453b-b453-0a006b4c86bc-image.png

              8514d4bc-e555-48a2-9888-53078ce4ff62-image.png

              J 1 Reply Last reply 17 Jul 2024, 13:12
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              • J Joe von Habsburg
                17 Jul 2024, 12:43

                @JoeCFD said in GStreamer with QT6:

                I edited my post.

                2ea2964c-f599-4cd6-ba4e-632e5eab64dc-image.png

                316c8b1b-abc1-453b-b453-0a006b4c86bc-image.png

                8514d4bc-e555-48a2-9888-53078ce4ff62-image.png

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                JoeCFD
                wrote on 17 Jul 2024, 13:12 last edited by
                #10

                @Joe-von-Habsburg I think you did not set pkg configure path. If you do not know how to set it, find the pkg files in gstreamer installation and add all the libs inside to your project.

                J 1 Reply Last reply 17 Jul 2024, 13:18
                0
                • J JoeCFD
                  17 Jul 2024, 13:12

                  @Joe-von-Habsburg I think you did not set pkg configure path. If you do not know how to set it, find the pkg files in gstreamer installation and add all the libs inside to your project.

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                  Joe von Habsburg
                  wrote on 17 Jul 2024, 13:18 last edited by
                  #11

                  @JoeCFD said in GStreamer with QT6:

                  I think you did not set pkg configure path. If you do not know how to set it, find the pkg files in gstreamer installation and add all the libs inside to your project.

                  PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/bin/pkgconfig:$PKG_CONFIG_PATH

                  aa513e32-c20d-4c29-852b-5f524bb2f231-image.png

                  J 1 Reply Last reply 17 Jul 2024, 13:55
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                  • J Joe von Habsburg
                    17 Jul 2024, 13:18

                    @JoeCFD said in GStreamer with QT6:

                    I think you did not set pkg configure path. If you do not know how to set it, find the pkg files in gstreamer installation and add all the libs inside to your project.

                    PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/bin/pkgconfig:$PKG_CONFIG_PATH

                    aa513e32-c20d-4c29-852b-5f524bb2f231-image.png

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                    JoeCFD
                    wrote on 17 Jul 2024, 13:55 last edited by JoeCFD
                    #12

                    @Joe-von-Habsburg pkg config path is under gstreamer lib dir.
                    For example in Linux
                    /opt/thirdParties/gstreamer/lib/pkgconfig
                    Maybe it is different in Windows
                    and pkg-config.exe has to be in system path of Windows.

                    J 1 Reply Last reply 17 Jul 2024, 13:57
                    0
                    • J JoeCFD
                      17 Jul 2024, 13:55

                      @Joe-von-Habsburg pkg config path is under gstreamer lib dir.
                      For example in Linux
                      /opt/thirdParties/gstreamer/lib/pkgconfig
                      Maybe it is different in Windows
                      and pkg-config.exe has to be in system path of Windows.

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                      Joe von Habsburg
                      wrote on 17 Jul 2024, 13:57 last edited by
                      #13

                      @JoeCFD said in GStreamer with QT6:

                      @Joe-von-Habsburg pkg config path is under gstreamer lib dir.
                      For example in Linux
                      /opt/thirdParties/gstreamer/lib/pkgconfig
                      Maybe it is different in Windows

                      There is only C:/gstreamer/1.0/msvc_x86_64/bin/pkg-config.exe

                      f54da375-fd5f-45e0-9293-b867c00310aa-image.png

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                        JoeCFD
                        wrote on 17 Jul 2024, 14:01 last edited by JoeCFD
                        #14

                        add C:/gstreamer/1.0/msvc_x86_64/bin to PATH on Windows. This enables you to run pkg-config.exe and use pkg-config. Nice that gstreamer includes it for you.
                        go to C:/gstreamer/1.0/msvc_x86_64/lib to find dir pkgconfig. Add C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig to PKG_CONFIG_PATH

                        Do not forget to add gstreamer plugin path as well in your env. Otherwise, you can not run your gstreamer app.

                        J 1 Reply Last reply 17 Jul 2024, 14:09
                        0
                        • J JoeCFD
                          17 Jul 2024, 14:01

                          add C:/gstreamer/1.0/msvc_x86_64/bin to PATH on Windows. This enables you to run pkg-config.exe and use pkg-config. Nice that gstreamer includes it for you.
                          go to C:/gstreamer/1.0/msvc_x86_64/lib to find dir pkgconfig. Add C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig to PKG_CONFIG_PATH

                          Do not forget to add gstreamer plugin path as well in your env. Otherwise, you can not run your gstreamer app.

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                          Joe von Habsburg
                          wrote on 17 Jul 2024, 14:09 last edited by
                          #15

                          @JoeCFD said in GStreamer with QT6:

                          C:/gstreamer/1.0/msvc_x86_64/bin to PATH on Window

                          it already exists

                          d4060ddb-aee4-4ad8-befe-b0a0b3335a59-image.png

                          @JoeCFD said in GStreamer with QT6:

                          C:/gstreamer/1.0/msvc_x86_64/lib to find dir pkgconfig

                          there is no pkg lib

                          a99c75f6-6b8e-4674-aebb-25deac87ad1f-image.png

                          6ee8b5b1-7fe4-4a6d-8b25-ca79eb592edf-image.png

                          83ef1969-2dc6-46e9-9ce2-35e4c3e96535-image.png

                          2b124ea5-9f96-4f71-8218-4342a5cfa93f-image.png

                          @JoeCFD said in GStreamer with QT6:

                          C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig

                          its not here.

                          I have only pkg-config exe in C:/gstreamer/1.0/msvc_x86_64/bin/pkg-config.exe

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                            JoeCFD
                            wrote on 17 Jul 2024, 15:54 last edited by
                            #16

                            If it does not exist, you are unable to use it. I can check it out later for you in my home Windows.

                            J 1 Reply Last reply 17 Jul 2024, 15:55
                            0
                            • J JoeCFD
                              17 Jul 2024, 15:54

                              If it does not exist, you are unable to use it. I can check it out later for you in my home Windows.

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                              Joe von Habsburg
                              wrote on 17 Jul 2024, 15:55 last edited by
                              #17

                              @JoeCFD thank you so much, I will wait and research new solutions

                              J 1 Reply Last reply 17 Jul 2024, 15:56
                              0
                              • J Joe von Habsburg
                                17 Jul 2024, 15:55

                                @JoeCFD thank you so much, I will wait and research new solutions

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                                JoeCFD
                                wrote on 17 Jul 2024, 15:56 last edited by JoeCFD
                                #18

                                @Joe-von-Habsburg
                                https://stackoverflow.com/questions/63026758/cannot-compile-gstreamer-on-windows-because-it-is-missing-glib-2-0

                                it can be there. Try to reinstall it in different ways.

                                1 Reply Last reply
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                                • J JoeCFD
                                  17 Jul 2024, 11:20

                                  @Joe-von-Habsburg I edited my post. You need to figure out how to set pkg path on Windows.

                                  On linux:
                                  export PKG_CONFIG_PATH=/opt/thirdParties/gstreamer/lib/pkgconfig:$PKG_CONFIG_PATH

                                  it is easier to use pkg config to add packages into a project because all dependencies are taken care of. But you can add all libs manually as well.

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                                  Joe von Habsburg
                                  wrote on 18 Jul 2024, 06:25 last edited by Joe von Habsburg
                                  #19

                                  I download files with msys :

                                  pacman -S mingw-w64-x86_64-gstreamer mingw-w64-x86_64-gst-plugins-base \
                                        mingw-w64-x86_64-gst-plugins-good mingw-w64-x86_64-gst-plugins-bad \
                                        mingw-w64-x86_64-gst-plugins-ugly mingw-w64-x86_64-gst-libav \
                                        mingw-w64-x86_64-gst-rtsp-server
                                  

                                  and I copy the pkgconfig to lib like that

                                  image.png

                                  and gsreamer-1.0.pc and gsteamer-video-1.0.pc exist

                                  image.png

                                  cmake like that :

                                  PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH
                                  find_package( PkgConfig REQUIRED )
                                  pkg_search_module( GSTREAMER REQUIRED IMPORTED_TARGET gstreamer-1.0)
                                  pkg_search_module( GSTREAMER-VIDEO REQUIRED IMPORTED_TARGET gstreamer-video-1.0)
                                  

                                  but its not work

                                  aee5e95a-84a0-49ce-9c13-fc96965b9d94-image.png

                                  J 1 Reply Last reply 18 Jul 2024, 10:46
                                  0
                                  • J Joe von Habsburg
                                    18 Jul 2024, 06:25

                                    I download files with msys :

                                    pacman -S mingw-w64-x86_64-gstreamer mingw-w64-x86_64-gst-plugins-base \
                                          mingw-w64-x86_64-gst-plugins-good mingw-w64-x86_64-gst-plugins-bad \
                                          mingw-w64-x86_64-gst-plugins-ugly mingw-w64-x86_64-gst-libav \
                                          mingw-w64-x86_64-gst-rtsp-server
                                    

                                    and I copy the pkgconfig to lib like that

                                    image.png

                                    and gsreamer-1.0.pc and gsteamer-video-1.0.pc exist

                                    image.png

                                    cmake like that :

                                    PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH
                                    find_package( PkgConfig REQUIRED )
                                    pkg_search_module( GSTREAMER REQUIRED IMPORTED_TARGET gstreamer-1.0)
                                    pkg_search_module( GSTREAMER-VIDEO REQUIRED IMPORTED_TARGET gstreamer-video-1.0)
                                    

                                    but its not work

                                    aee5e95a-84a0-49ce-9c13-fc96965b9d94-image.png

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                                    JoeCFD
                                    wrote on 18 Jul 2024, 10:46 last edited by JoeCFD
                                    #20

                                    @Joe-von-Habsburg said in GStreamer with QT6:

                                    PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH

                                    ":" is missing in the picture.
                                    PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH

                                    J 1 Reply Last reply 22 Jul 2024, 06:07
                                    0
                                    • J JoeCFD
                                      18 Jul 2024, 10:46

                                      @Joe-von-Habsburg said in GStreamer with QT6:

                                      PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH

                                      ":" is missing in the picture.
                                      PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH

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                                      Joe von Habsburg
                                      wrote on 22 Jul 2024, 06:07 last edited by
                                      #21

                                      @JoeCFD said in GStreamer with QT6:

                                      ":" is missing in the picture.

                                      I forgot about it and added it. the code shows it as added. but nothing happened. i keep getting the error. i'm sure the solution is very simple in linux. i wish it could be the same in windows.

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                                        anonymus982493
                                        wrote on 22 Jul 2024, 08:28 last edited by
                                        #22

                                        hey, the problem is that you need to write it like this:
                                        set(PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH)
                                        this way it should work, I had the same problem last week

                                        J 1 Reply Last reply 22 Jul 2024, 12:33
                                        0
                                        • A anonymus982493
                                          22 Jul 2024, 08:28

                                          hey, the problem is that you need to write it like this:
                                          set(PKG_CONFIG_PATH=C:/gstreamer/1.0/msvc_x86_64/lib/pkgconfig:$PKG_CONFIG_PATH)
                                          this way it should work, I had the same problem last week

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                                          Joe von Habsburg
                                          wrote on 22 Jul 2024, 12:33 last edited by Joe von Habsburg
                                          #23

                                          @anonymus982493

                                          Could not work on me :/

                                          Where do you install gstreamer and where do you install pkgconfig folder in lib ?

                                          f621dadd-0954-4365-a16b-b2a86b5e7c91-image.png

                                          6e3a1454-abd4-4176-89bd-b2796a02469d-image.png

                                          J 1 Reply Last reply 22 Jul 2024, 21:07
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