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• Anomalie #4684 (Nouveau): Les chiffres des dates sont coupés

  7 March 2021, by Franck D

  Hello :)

  SPIP 3.3.0-dev GIT [master: f86fd052]
  Laragon:
  PHP 8.0.2 VS16 x64 Non Thread Safe https://windows.php.net/download/
  Apache 2.4.46 Win64 avec mod_fcgid-2.3.10-win64-VS16 https://www.apachelounge.com/download/
  Mysql 8.0.23 (mysql-8.0.23-winx64.zip) https://dev.mysql.com/downloads/mysql/
  phpMyAdmin 5.0.4 https://www.phpmyadmin.net

  Juste pour dire qu’il y a un problème de css avec l’organiseur, la date du jour est complètement à droite, dans le carré, ce qui implique de ne pas voir correctement le dernier de la semaine (voir copie d’écran), à voir si en les mettant au centre, cela ne serait pas mieux y compris pour ceux qui lisent de la droite vers la gauche
  En spip 3.2, ils sont aussi à droite, mais il est possible de voir les chiffres en entiers

  Je me pose même la question s’il ne faudrait pas réduire la taille des carrés, car si on regarde dans la copie d’écran, il y a deux ascenseurs sur la même page (mon moniteur est en 1920*1080)

  Franck

• Converting youtube videos to mp3 in golang using a ffmpeg binary

  19 August 2015, by Bera

  With golang it’s possible to extract a mp3 file from a given youtube video url?

  Is needed to download a video in mp4 format and then extract the audio in the mp3 format.

  Would be better to use a lib like youtube-dl to download the video in mp4 and after invoke a ffmpeg binary to extract the audio or there is a easy way using only go libraries or binds?

  thanks for your help.

• ffmpeg how to extract X frames every Y interval from url efficiently

  13 December 2018, by Luay Gharzeddine

  I’m trying to gather data for a datascience project, and am downloading frames from online videos using ffmpeg. I want to download a subset of the frames in the video, without needing to be precise about which, the only requirement is that they are reasonably spaced apart from each other.

  I have tried

  ffmpeg -i "http://www.somevideo.com" -r 1 -f image2 "image%06d.jpg"

  and

  ffmpeg -i "http://www.somevideo.com" -vf fps=1 "image%06d.jpg"

  and eventually found the following method

  ffmpeg -ss offset1 -i "http://www.somevideo.com" -ss offset2 -i "http://www.somevideo.com" -map 0:v -frames:v 10 -start_number 0 "image%06d.jpg" -map 1:v -frames:v 10 -start_number 10 "image%06d.jpg"

  and all work, but are slow. I have found a hack where I run the following command multiple times, at different offsets, and it seems to be the fastest (where each ffmpeg command is run in parallel multithreaded)

  ffmpeg -ss offset -i "http://www.somevideo.com" -vframes frames_per_fragment -an -start_number start_index "image%06d.jpg"

  this about 25% faster than the previous method

  Is there a faster way to do this? The issue is that downloading over a network is a bottleneck, so I want to download only the frames I need. I’m looking to download videos/frames in bulk, so any speed improvement would be helpful.