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• How to apply noises on video ?

  22 juin 2018, par cht_usr

  I have seen this video on youtube which apply ffmpeg noises
  by these commands, but when I tried to apply them on my video it does not work

      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v ffv1 -g 1 -bsf noise -t 10 ffv11v1.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v ffv1 -level 3 -g 1 -bsf noise -t 10 ffv1v3.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v v210 -bsf noise -t 10 -pix_fmt yuv422p10le v210.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v rawvideo -bsf noise -t 10 -pix_fmt uyvy422 -vtag 2vuy uyvy422.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v libx264 -crf 0 -qp 0 -bsf noise -t 10 -pix_fmt yuv420p h264.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v qtrle -bsf noise -t 10 qtrle.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v sunrast -bsf noise -t 10 sunrast.avi
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v targa -bsf noise -t 10 targa.avi
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v utvideo -bsf noise -t 10 utvideo.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v xwd -bsf noise -t 10 xwd.avi
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v zmbv -bsf noise -t 10 zmbv.avi
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v flashsv -bsf noise -t 10 flashsv.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v huffyuv -bsf noise -t 10 -pix_fmt yuv420p huffyuv.mov
  
      ffmpeg -f lavfi -i mandelbrot=s=320x240 -c:v libx264 -crf 0 -qp 0 -bsf noise -t 10 -pix_fmt yuv420p h264.mov

  like this command :

  ffmpeg -i /home/user/video.mp4 -codec:v huffyuv -f lavfi -c:v sunrast -bsf noise -t 10 videoNoised.avi

• ffmpeg scaling not working for video

  15 mai 2018, par Neer Patel

  I am trying to change the dimensions of the video file through FFMPEG.
  I want to convert any video file to 480*360 .

  This is the command that I am using...

  ffmpeg -i oldVideo.mp4 -vf scale=480:360 newVideo.mp4

  After this command 1280*720 dimensions are converted to 640*360.

  I have also attached video. it will take less than minute for any experts out there. Is there anything wrong ?

  You can see here. (in Video, after 20 seconds, direclty jump to 1:35 , rest is just processing time).

  UPDATE :

  I found the command from this tutorial

• youtube-dl sometime hangs with "[ffmpeg] Correcting container"

  20 mai 2018, par user292344

  Ubuntu 16.04

  /usr/local/bin/youtube-dl --version
  
  2018.05.09

  I have a bash script that attemts to download a youtube video. The output is below. The problem is that sometimes it works perfectly (completes quickly).
  But most of the time it hangs on "Correcting container....". Does anyone know why ?

  + /usr/local/bin/youtube-dl --verbose -x 'https://www.youtube.com/watch?v=8HVWitAW-Qg'
  
  
  
  [debug] System config: []
  
  
  
  [debug] User config: []
  
  
  
  [debug] Custom config: []
  
  
  
  [debug] Command-line args: [u'--verbose', u'-x', u'https://www.youtube.com/watch?v=8HVWitAW-Qg']
  
  
  
  [debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
  
  
  
  [debug] youtube-dl version 2018.05.09
  
  
  
  [debug] Python version 2.7.12 (CPython) - Linux-4.4.0-124-generic-x86_64-with-Ubuntu-16.04-xenial
  
  
  
  [debug] exe versions: avconv 2.8.14-0ubuntu0.16.04.1, avprobe 2.8.14-0ubuntu0.16.04.1, ffmpeg 2.8.14-0ubuntu0.16.04.1, ffprobe 2.8.14-0ubuntu0.16.04.1, rtmpdump 2.4
  
  
  
  [debug] Proxy map: {}
  
  
  
  [youtube] 8HVWitAW-Qg: Downloading webpage
  
  
  
  [youtube] 8HVWitAW-Qg: Downloading video info webpage
  
  
  
  [youtube] 8HVWitAW-Qg: Extracting video information
  
  
  
  [debug] Invoking downloader on u'https://r5---sn-5uaeznkl.googlevideo.com/videoplayback?expire=1526159728&source=youtube&key=yt6&mime=audio%2Fmp4&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Crequiressl%2Csource%2Cusequic%2Cexpire&keepalive=yes&lmt=1518142590597815&dur=231.131&mv=m&mt=1526137933&ms=au%2Conr&signature=18BB34F3716B412AC5757872DD2AF402B6EE20D2.43D2E68B5A5ED2E2D3076DF9264B9BB723484821&ip=71.81.217.251&c=WEB&initcwndbps=1583750&mn=sn-5uaeznkl%2Csn-p5qs7n7l&clen=3671757&gir=yes&id=o-AOxj8Rg2IuZek8KwvgPy-N7_FSGzxQ0Zl2HX1T4gepLf&ipbits=0&fvip=5&ei=EAX3WqbOH8fg4QSlkrGoAg&pl=20&mm=31%2C26&itag=140&usequic=no&requiressl=yes&ratebypass=yes'
  
  
  
  [download] Destination: Top 10 cute kitten videos compilation-8HVWitAW-Qg.m4a
  
  
  
  [download] 100% of 3.50MiB in 00:00
  
  
  
  [ffmpeg] Correcting container in "Top 10 cute kitten videos compilation-8HVWitAW-Qg.m4a"
  
  
  
  [debug] ffmpeg command line: avconv -y -i 'file:Top 10 cute kitten videos compilation-8HVWitAW-Qg.m4a' -c copy -f mp4 'file:Top 10 cute kitten videos compilation-8HVWitAW-Qg.temp.m4a'
  
  
  
  ^C
  
  ERROR: Interrupted by user