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• How to concat multiple sets of 2 videos using ffmpeg and for loop

  25 janvier 2020, par Rawr Linux Mmm

  I am trying to batch merge multiple sets of 2 videos.
  Clarification : I am trying to merge 2 videos into 1, multiple times, quickly.

  I have two folders, one full of mp4’s in which I want in the beginning of the output video. Another full of mp4’s in which I want at the end of the output video.

  Basically I am trying to merge the first video in folder1 with the first video in folder2, and then the second video in folder1 with the second video in folder2, etc...

  Here is what I have, and I was trying to run this script inside the video directory of folder1.

  for filename in *.mp4; do
  
      vids2="/path/to/2nd/set/of/videos/${filename%.*}"
  
      out="/path/to/output/folder/$(date +'%Y-%m-%d_%H:%M:%S').mp4"
  
      ffmpeg -i "${vids2}.mp4" -i "${filename%.*}.mp4" -acodec copy -vcodec copy "$out"
  
  done

  I also tried this in which I ran from anywhere since I defined all the paths.

  for filename in *.mp4; do
  
      vid1="/path/to/folder1/videos/${filename%.mp4}"
  
      vid2="/path/to/folder2/videos/${filename%.mp4}"
  
      out1="/output/folder/$(date +'%Y-%m-%d_%H:%M:%S').mp4"
  
      ffmpeg -i "$vid1" -i "$vid2" -acodec copy -vcodec copy "$out1"
  
  done

  but that didn’t work either...

  Does anyone know what I am doing wrong ?

• Rails Thumbnails for videos being uploaded to S3

  20 octobre 2015, par Dani

  I have a rails application where I need to upload videos to an amazon s3 bucket alongwith their thumbnails. I am using ffmpeg to generate thumbnails and I am using carrierwave to handle video uploads. Here is my video uploader class

   class VideoUploader < CarrierWave::Uploader::Base
  
    include CarrierWave::Video
  
    storage :fog
  
    def store_dir
  
       "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  
    end
  
    def extension_white_list
  
      %w(mp4 flv)
  
    end
  
  end

  The video uploads fine and the column for video url is set in videos table but I want to generate thumbnail and upload it as well. I know I have to use ffmpeg here but don’t exactly know how to do it.

  Any help will be appreciated.

• Annual Release of External-Videos plugin – we’ve hit v1.0

  13 janvier 2017, par silvia

  This is the annual release of my external-videos wordpress plugin and with the help of Andrew Nimmolo I’m proud to annouce we’ve reached version 1.0 !

  So yes, my external-videos wordpress plugin is now roughly 7 years old, who would have thought ! During the year, I don’t get the luxury of spending time on maintaining this open source love child of mine, but at Christmas, my bad conscience catches up with me – every year ! I then spend some time going through bug reports, upgrading the plugin to the latest wordpress version, upgrading to the latest video site APIs, testing functionality and of course making a new release.

  This year has been quite special. The power of open source has kicked in and a new developer took an interest in external-videos. Andrew Nimmolo submitted patches over all of 2016. He decided to bring the external-videos plugin into the new decade with a huge update to the layout of the settings pages, general improvements, and an all-round update of all the video site APIs which included removing their overly complex SDKs and going straight for the REST APIs.

  Therefore, I’m very proud to be able to release version 1.0 today. Thanks, Andrew !

  Enjoy – and I look forward to many more contributions – have a Happy 2017 !

  —

  NOTE : If you’re upgrading from an older version, you might need to remove and re-add your social video sites because the API details have changed a bit. Also, we noticed that there were layout issues on WordPress 4.3.7, so try and make sure your WordPress version is up to date.