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• Revision 70728 : Un chouilla de phpdoc et éviter une notice si ...

  14 mars 2013, par kent1@… — Log

  Un chouilla de phpdoc et éviter une notice si $argscontexte ?modele ? n’est pas défini

• Revision 70728 : Un chouilla de phpdoc et éviter une notice si ...

  14 mars 2013, par kent1@… — Log

  Un chouilla de phpdoc et éviter une notice si $argscontexte ?modele ? n’est pas défini

• how to capture continuous Realtime progress stream of output (from ffmpeg)

  6 décembre 2022, par user206904

  I am having trouble showing the progress of ffmpeg through my script. I compile my script to exe with ps2exe and ffmpeg output on standard error instead of outputting on standard out
So I used to pipe 1 option

  


  my script.ps1 now is :

  


  # $nb_of_frames= #some_int
& $ffmpeg_path -progress pipe:1 -i input.mp4 -c:v libx264 -pix_fmt yuv420p -crf 25 -preset fast -an output.mp4


  


  then I compile it with ps2exe. (to reproduce you don't need the compile, just use the above command with pipe:1 directly in cmd or PowerShell you will get the same behavior)

  


  Normally with ffmpeg you get a progress reporting (that is interactive), one line containing the information and it keeps getting updated as 1 single line without spamming the console with 100s of lines, it looks like this.

  


  frame= 7468 fps=115 q=22.0 size=   40704kB time=00:05:10.91 bitrate=1072.5kbits/s speed= 4.8x


  


  But this does not appear in the compiled version of my script, so after digging I added -progress pipe:1 to get the progress to appear on std out

  


  Now I get a continuous output every second that looks like this :

  


  frame=778
fps=310.36
stream_0_0_q=16.0
bitrate= 855.4kbits/s
total_size=3407872
progress=continue
...
frame=1092
fps=311.04
stream_0_0_q=19.0
bitrate= 699.5kbits/s
total_size=3932160
progress=continue 


  


  I would like to print some sort of updatable percentage out of this, I can compute a percentage easily if I can capture that frame number, but in this case, I don't know how to capture a real-time output like this and how to make my progress reporting update 1 single line of percentage in real-time (or some progress bar via symbols) instead of spamming on many lines

  


  (or if there is a way to make the default progress of FFmpeg appear in the compiled version of my script that would work too)

  


  edit : a suggestion based on the below answer

  


  #use the following lines instead of write-progress if using with ps2exe
            #$a=($frame * 100 / $maxFrames)
            #$str = "#"*$a
            #$str2 = "-"*(100-$a)
            #Write-Host -NoNewLine "`r$a% complete | $str $str2|"



  


  Thanks