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• FFmpeg - Check if all video files have concatenated correctly into one video

  14 mai 2020, par STerrier

  I am concatenating thousands of .ts files into an mp4 which works great but is there a way to know which files have already been concatenated with FFmpeg ?

  



  The issue I have is I am concatenating multiple videos back to back and if the app is closed off during the concatenation process. The concatenating of the videos may not be complete. I can check if the files exist but the size of the files could be wrong if not all the clips have been concatenated. Is there a way to know if all the files have been concatenated properly ?

  



  My current idea is if the app is closed before it has completed concatenating, I would delete the mp4 file and restart concatenating the video again but this time consuming especially if the files concatenated properly the first time.

  



  Any ideas would be great thanks

  



  ffmpegCommand

  



   ffmpeg -f concat -i \(videoFile) -c:v copy -c:a copy \(outputFile)


  



  I am using the cocoa pod mobile-FFmpeg
https://github.com/tanersener/mobile-ffmpeg

  



  Link to FFmpeg Concatenate function
https://trac.ffmpeg.org/wiki/Concatenate

  


• Revision 16878 : do not try to get aspect information from source twice in twopass ...

  7 février 2010, par j — Log

  do not try to get aspect information from source twice in twopass mode, fixes bug reported by DuClare ?

• how to have live video streaming using ffmpeg command or using tcl 8.0 script on windows 10 platform [duplicate]

  16 novembre 2017, par M. D. P

  This question is an exact duplicate of :

  • How to stream live-video display from a webcam using FFMPEG command on tcl version 8.0 and windows 7 ?
    
    1 answer
    

  I am able to capture the video and image by using ffmpeg in tcl script, but I want to have live video streaming for my multiple webcams for tcl version 8.0 on windows 10.

  I tryed :

  ffmpeg -f vfwcap -r 25 -i 0 sample.avi

  for video capturing, it works

  ffmpeg -f vfwcap -r 25 -i 0 

  and I tried this for live video streaming by it didn’t http://wiki.tcl.tk/40194
  So what will be the right command for live video streaming.

  exec [list ffmpeg -f dshow -t 00:00:10 -i "video=Integrated Webcam" -b 5000k -s 1280x720 c :/test/sample-a.avi] &

  also tried with this, still not working