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• extracting single frame FFmpeg Interop

  12 janvier 2016, par Jakub Wisniewski

  I am writing app (Windows Phone 8.1 Store App) that allows user to connect to IP Camera. I am using FFmpeg Interop library for ffmpeg which allows me to play eg. rtsp streams in media element. I need now a way to somehow extract a single frame from stream or from media element.

  I have tested other application wchih allows connecting to IP cameras - IP Centcom, and they have working snapshots only for mjpeg streams as far as I now (they were not working for rtsp). Becouse of that I belive that it is impossible or at very least very hard to export frame from media element.

  I have different question - if anyone has ever used FFmpeg Interop and would like to help/explain me how could I modify/extend FFmpegInteropMSS to add method called ’GetThumbnailForStream’ that would work similary to ’GetMediaStreamSource’ but would return single frame (bitmap or jpg) instead of MediaStreamSource ?

  Every help would be appreciated

• FFMPEG is not able to find window for edge browser

  19 avril 2022, par randy

  I am trying to capture video recording for edge browser using below command

  


  ffmpeg.exe -f gdigrab -framerate 9 -i title="About version - Profile 1 - Microsoft​ Edge' -vcodec libx264 -threads 1 -crf 35 -preset ultrafast -f hls -g 15 -hls_list_size 0 -hls_time 5 -r 7 -pix_fmt yuv420p -maxrate 1.7M -bufsize 2M -tune zerolatency -vf pad=ceil(iw/2)*2:ceil(ih/2)*2 index.m3u8


  


  This is how I found title for edge browser

  


  tasklist /v /fi "imagename eq msedge.exe" /fo list


  


  This is the error I get (notice the weird character)

  


   Can't find window 'About version - Profile 1 - MicrosoftΓÇï Edge'


  


  I have also verified the title with AutoIt application. This is working fine for chrome and firefox. Let me know if some is able to record the edge browser via ffmpeg

  


• Converted video is not played in Firefox

  20 juillet 2023, par Kiten

  I have a code that accepts the video file from the client converts it and saves it on the server with .mp4 extension. Video processing is made using fluent-ffmpeg. Here is the code :

  


  ffmpeg()
  .size('360x?')
  .videoCodec('libx264')
  .output()
  .on("end", () => {
    console.log(`Video saved with resolution 360`);
    res.json('Uploaded')
  })
  .on("error", (error) => {
    console.error(
      `Error saving video with resolution 360:`,
      error
    );
    res.status(500).json({ message: "Conversion error" });
  })
  .run();


  


  The problem is that the resulting files are not played in the Firefox browser (but work in Microsoft Edge and Google Chrome).
Is it possible to change the parameters so that the resulting files are compatible with Firefox browser ?