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• FFmpeg output doesn't match source

  10 octobre 2019, par Patrick O'Brien

  I can’t seem to match the ffmpeg output with the source exr. Linking to the source exr and movie here : https://www.dropbox.com/sh/mc19q5m9bf17goi/AAAfs4o_vxnAePIZVrOBrEZRa?dl=0. I’ve tried a lot of flags, the closest seems to be this :

  C :\PyAniTools\apps\pyShoot\ffmpeg\bin\ffmpeg.exe -apply_trc iec61966_2_1 -i C :\Users\Patrick\Downloads\050_020_render_layer\char_back\char_back.1062.exr -vcodec libx264 -pix_fmt yuv420p -preset slow -crf 18 -r 25 C :\Users\Patrick\Downloads\050_020_render_layer\char_back\char_back.1062.mp4

  It’s still different though. Source exr :
  

  It’s hard to tell probably but parts of the image get darker :
  

  Any help would be greatly appreciated, I’ve been trying things for days. Thanks,
  Patrick

• Core : Use :disabled selector to match disabled elements

  12 mai 2015, par weitzhandler

  Core : Use :disabled selector to match disabled elements
  This also applies to elements that are inside a fieldset with a disabled
  
  attribute, causing an inherited disabled state. Only matching the disabled
  
  attribute directly won’t capture that.
  Closes #1474
  

• How to modify this Windows script to do a match ?

  21 janvier 2016, par Andrei Clear

  ffmpeg can resize a video/image file .. first is input_file .. parameters .. output_file ..

  ffmpeg -i input.avi -vf scale=320:240 output.avi

  or

  ffmpeg -i 20140724_071746.mp4 -vf scale=640:-1 20140724_071746_LOW_640.mp4

  more info here : https://trac.ffmpeg.org/wiki/Scaling%20%28resizing%29%20with%20ffmpeg

  I want it to downscale all the videos on my microSD card to create space (I have originals backed-up)

  So I want it to go throw all the files in all the sub-directories overnight and resize all the files. Chances are that the script might stop or crash and I would need to run it again, or if I add new files I would want to run it again.

  So I would want it to skip processing all the files that have been processed AND their resized versions.

  In my case if a FILE_NAME.mp4 also has FILE_NAME_LOW_640.mp4 SKIP it
  AND
  if a FILE_NAME_LOW_640.mp4 has *640 SKIP it

  Here is my Windows batch script so far

  REM @echo off
  
  REM just save as "DOS"
  
  REM cd /d C:\s
  
  
  
  setlocal enabledelayedexpansion
  
  for %%j in (*.mp4) do (
  
  set filename=%%~nj
  
  echo %%j
  
  
  
  ffmpeg -i %%j -vf scale=640:-1 %%j_LOW_640.mp4
  
  
  
  REM but now I want to add the two checks to skip files that have been resized .. or if they are the resized version 
  
  
  
  REM if not "!filename!"=="%%j_LOW_640.mp4" AND IF FILE !COINTAIN *640* THEN ffmpeg -i %%j -vf scale=640:-1 %%j_LOW_640.mp4
  
  
  
  )
  
  
  
  pause
  
  REM AND I would also want it to process all the sub-directories  

  In other words my questions for help are :

  1. How can I do a check for a string if it contains a string match ?

  2. How can I have my script also process all the subdirectories ?