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• vcpkg error : BUILD_FAILED when "Getting CMake variables for x64-windows"

  24 août 2024, par Rok Benko

  I'm trying to install ffmpeg via vcpkg on Windows by running the following command :

  


  vcpkg.exe install ffmpeg

  


  The installation throws an error when getting CMake variables for x64-windows.

  


  -- Getting CMake variables for x64-windows
CMake Error at scripts/cmake/vcpkg_execute_required_process.cmake:127 (message):
    Command failed: "C:/Program Files/Microsoft Visual Studio/2022/Community/Common7/IDE/CommonExtensions/Microsoft/CMake/Ninja/ninja.exe" -v
    Working Directory: C:/Users/xxxxx/vcpkg/buildtrees/pkgconf/x64-windows-rel/vcpkg-parallel-configure
    Error code: 1
    See logs for more information:
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-dbg-CMakeCache.txt.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-rel-CMakeCache.txt.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-dbg-CMakeConfigureLog.yaml.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-rel-CMakeConfigureLog.yaml.log
      C:\Users\xxxxx\vcpkg\buildtrees\pkgconf\cmake-get-vars-x64-windows-out.log

Call Stack (most recent call first):
  installed/x64-windows/share/vcpkg-cmake/vcpkg_cmake_configure.cmake:269 (vcpkg_execute_required_process)
  installed/x64-windows/share/vcpkg-cmake-get-vars/vcpkg_cmake_get_vars.cmake:15 (vcpkg_cmake_configure)
  installed/x64-windows/share/vcpkg-tool-meson/vcpkg_configure_meson.cmake:323 (vcpkg_cmake_get_vars)
  installed/x64-windows/share/vcpkg-tool-meson/vcpkg_configure_meson.cmake:458 (vcpkg_generate_meson_cmd_args)
  ports/pkgconf/portfile.cmake:9 (vcpkg_configure_meson)
  scripts/ports.cmake:192 (include)


error: building pkgconf:x64-windows failed with: BUILD_FAILED
See https://learn.microsoft.com/vcpkg/troubleshoot/build-failures?WT.mc_id=vcpkg_inproduct_cli for more information.
Elapsed time to handle pkgconf:x64-windows: 1.9 s
Please ensure you're using the latest port files with `git pull` and `vcpkg update`.
Then check for known issues at:
  https://github.com/microsoft/vcpkg/issues?q=is%3Aissue+is%3Aopen+in%3Atitle+pkgconf
You can submit a new issue at:
  https://github.com/microsoft/vcpkg/issues/new?title=xxxxx


  


  What does this error mean ? The suggested git pull and vcpkg update didn't solve the error. The directory is up to date.

  


  PS : I opened logs, but I have no idea how to solve the error. I don't understand them.

  


• Issue with Asynchronous Video Processing and New Window Creation in Windows Forms Application

  2 août 2023, par sadra hoseini

  I have a Windows Forms application that uses FFmpeg for video processing tasks. In this application, I have a textBox2_TextChanged event handler that performs some video processing tasks based on user input.

  


  However, I noticed that when textBox2_TextChanged is called, the UI becomes unresponsive, and it seems like another window is being created but doesn't show up. I suspect that this issue is related to threading.

  


  Here's a simplified version of the problematic code :

  


  // Relevant code snippet:
private async void textBox2_TextChanged(object sender, EventArgs e)
{
    if (listBox1.Items.Count > 0 && int.TryParse(textBox2.Text, out int itemvalue) && int.TryParse(textBox1.Text, out int ratio))
    {
        await Task.Run(() =>
        {
            // Video processing code using FFmpeg (e.g., creating thumbnails).
            // This code seems to cause the UI to freeze and prevent new windows from showing up.
        });
    }
}


  


  Expected Behavior :

  


  When a user enters a valid input in textBox2, the video processing tasks should be executed in the background without freezing the UI. The application should remain responsive, and any new windows, including message boxes or progress dialogs, should show up as expected.

  


  Actual Behavior :

  


  When a user enters a valid input in textBox2, the video processing tasks appear to be running, but the UI becomes unresponsive, and new windows, such as message boxes, do not show up as expected. This makes it challenging to display any progress or error messages to the user during video processing.

  


  Steps to Reproduce :

  


  Open the Windows Forms application.
Add some video files to the list (listBox1) and provide valid input in textBox2.
Observe the UI behavior and any new windows that should be displayed, such as progress dialogs or message boxes.
Additional Notes :

  


  I am using Visual Studio [version] for development.
The application uses FFmpeg for video processing tasks, and I've verified that FFmpeg is functioning correctly.
I've also tried using proper error handling to catch any exceptions, but no exceptions are thrown during the video processing tasks.
Any help or suggestions on how to resolve this issue and enable new window creation during video processing would be greatly appreciated. Thank you !

  


• qsvenc : AVBR is not supported on non-windows OS

  30 janvier 2018, par Zhong Li

  qsvenc : AVBR is not supported on non-windows OS
  AVBR is supported from API 1.3 but only available for Windows
  Signed-off-by : Zhong Li <zhong.li@intel.com>
  
  Signed-off-by : Maxym Dmytrychenko <maxim.d33@gmail.com>
  

  • [DBH] libavcodec/qsvenc.c
  • [DBH] libavcodec/qsvenc.h