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• Windows ffmpeg batch to find folder containing VOBs, concatenate and convert, move to next folder [on hold]

  27 novembre 2018, par Daniel Cooper

  All,

  I am in need of help that is beyond my capabilities. I need to run a batch command in Windows that finds VOB files in a folder, concatenates and converts them using ffmpeg, and then continues the recursive search for more folders containing VOBs.

  The idea is that the cmd file would be copied into the root that the command should look under when running. I have found commands that find VOBs and I have found ffmpeg scripts that concatenate and convert, but combining these functionalities together in the way I need is proving above my level.

  Thank you all in advance.

  EDIT :
  The computer I am running this code on is off the network so I had to manually retype. Any typo’s here are therefore likely from the retyping since the codes seem to function as intended originally...

  This code creates a list of folders that contain VTS*.VOB (as opposed to just all *.VOBs because that would include a certain useless VOB that is present in each folder).

  for /r %%a in (.) do @if exist "%%~fa\VTS*.VOB" echo %%~fa >> folderlist.txt

  This piece combines VTS*.VOBs and then converts them to MP4

  @ECHO OFF
  
  md ffmpeg_output
  
  for %%f in (VTS*.VOB) do echo file '%%f' >> filelist.txt
  
  ffmpeg -f concat -i filelist.txt -c copy "ffmpeg_output\Total.VOB"
  
  ffmpeg -i "ffmpeg_output\Total.VOB" -c:v libx264 -pix_fmt yuv420p -c:a copy "ffmpeg_output\Converted.mp4"

  I attempted to essentially nest the for loops with the idea that the first snippet above would produce a txt file, which I could then "for /f" through each line to direct the second snippet of code for concatenation and conversion of the VOB files. However this plan never got off the ground as I am unable to figure out the viability or syntax of nesting for loops in this way.

• Is it possible to use FFmpeg to cut "random" sections from a folder of videos and concat them into 1 video ?

  14 novembre 2018, par EmmyStrand

  I realize this sounds like an easy question, and one that has been answered before. However, I cannot seem to find a script which can read a folder of videos with varying lengths, copy a random segment from each video, and concat them into a single video.

  An example :

  I have a folder with 150 videos labeled Fashion-Setlist-01.mp4, Fashion-Setlist-02.mp4, etc.
  Each are over 1 hour. I would like to pull a random 10 seconds section from each video and then randomly add them together resulting in a video. This may seem easy with only a few videos, but the plan is to read from potentially 100’s of videos. It should be possible to pull multiple sections from each video as well. I suppose we could run the script twice for more segments if the video needed to be longer.

• Anomalie #3075 : #LOGO_ARTICLE_RUBRIQUE_NORMAL ne retourne rien sous SPIP 3

  7 octobre 2018

  C’est juste que je déteste les comportements apparemment dérogatoires.

  Or, j’ai l’impression que _NORMAL et _SURVOL sont des suffixes qui permettent de ne retourner qu’un des 2 logos.
  Mais que ces suffixes ne marchent pas avec #LOGO_ARTICLE_RUBRIQUE

  Donc, oui, j’ai reçu une réponse qui met sur le même plan les suffixes _NORMAL/_SURVOL et _RUBRIQUE

  Mais puisque j’ai pu comprendre de travers par une systématisation abusive des suffixes en question (_NORMAL/_SURVOL), je penses qu’il faut, soit corriger le code (ce qui serait esthétiquement souhaitable), soit documenter la non généricité de ces suffixes (ce qui éviterait de passer à côté de l’info qui finalement n’est que dans le code).

  Et j’insiste qu’il n’est pas logique ni cohérent de ne pas pouvoir extraire le logo normal ou de survol dans toutes les situations.