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• C# UWP Desktop Bridge start ffmpeg with command

  4 décembre 2019, par iNCEPTiON_

  I have a UWP Application which starts a WPF app and communicates via AppServiceConnection which works well,
  what I want to do is to start FFmpeg / FFplay with the command to play a video.

  The code in the WPF app for starting FFmpeg / FFplay via AppServiceConnection

  private void Connection_RequestReceivedAsync(AppServiceConnection sender, AppServiceRequestReceivedEventArgs args)
  
          {
  
              var value = args.Request.Message["REQUEST"] as string;
  
              switch (value)
  
              {
  
                  case "StartFFmpeg":
  
                      Test();
  
                      break;
  
              }
  
          }
  
  
  
          private void Test()
  
          {
  
              var process = new Process();
  
              process.StartInfo.RedirectStandardOutput = true;
  
              process.StartInfo.RedirectStandardError = true;
  
              process.StartInfo.FileName = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName) + @"\ffplay.exe";
  
              process.StartInfo.Arguments = @"-i C:\Users\test\video.mp4";
  
  
  
  
  
              process.StartInfo.UseShellExecute = false;
  
              process.StartInfo.CreateNoWindow = true;
  
              process.Start();
  
          }

  this fails with the following error in the UWP app :

  The target process exited without raising a CoreCLR started event. Ensure that the target process is configured to use .NET Core. This may be expected if the target process did not run on .NET Core.
  
  The program '[16824] FFmpeg.Bridge.exe' has exited with code -532462766 (0xe0434352).

  now my question is, is it possible to start FFmpeg / FFplay with the desktop bridge ? or can we only start .net core processes, the process is running with full privileges so why is that not possible ?

  The UWP App won’t be published on the store, it will only run on a local windows machine.

• FFMPEG remove codec x264 to final films

  23 septembre 2017, par HenrykVIII

  I am processing my movie in ffmpeg (file merging, stabilization). The resulting metadata file gets an x264 codec. What prevents it from being reprocessed ?

  I decided to remove the codec using the Internet.
  script :

      ffmpeg -i input.mp4 -c copy -map 0 -metadata creation_time="2017-09-18 13:30:04" output.mp4
  
  ffmpeg -i output.mp4 -vcodec copy -acodec copy -vbsf h264_changesps=removesei -map_metadata -1 out.mp4
  
  pause

  Unfortunately it does not work :

  Unknown bitstream filter h264_changesps

  What am I doing wrong ?

• doc/general.texi : fix SDX2 description

  29 octobre 2015, par Paul B Mahol

  doc/general.texi : fix SDX2 description
  Signed-off-by : Paul B Mahol <onemda@gmail.com>
  

  • [DH] doc/general.texi