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• Best language to use for AWS Beanstalk worker, for Watermarking videos

  16 juin 2017, par RAJ CHOURASIA

  I have a requirement such that, for each customer, the video content I have has to be separately watermarked and kept in the cloud. Also, this whole process is to be automated.

  The way I have figured the architecture is that :

  • I would use AWS SQS queue, to update for which Customers, which set of videos have to be watermarked
  • AWS Beanstalk worker would read the queue, pick up the videos from a S3 location, watermark the required videos and save back in a separate S3 location

  Total size of all the videos can be upto 15GB, which takes more than 24hrs to watermark, using "ffmpeg", so I will also require

  • Ability to parallel process, use multiple CPU cores if available
  • Ability to auto scale, when required

  In order to achieve this, what would be the best Language to use, to write the AWS Beanstalk worker logic ?

• FFMPEG delay mutliple overlay videos (with different delays)

  28 avril 2019, par Bamba675

  I’m trying to overlay a video (for example a report) with different other videos or images, like hints to the facebook page or a hint to the website. These other videos or images are smaller than the original and sometimes transparent (rgba).

  I already tried to overlay multiple videos, which works pretty well :
  

  ffmpeg -i 30fps_fhd.mp4 -i sample.mp4 -i timer.webm -i logo.jpg -filter_complex "overlay = x=100:y=1000, overlay = x=30:y=66:eof_action=pass, overlay = x=0:y=0" -acodec copy -t 70 out.mp4

  But now, I want to start some videos or images not at the beginning of the video, instead after a period of time.
  I found flags like ’itsoffset’ or ’setpts’, but I dont know how to apply them on this ’multiple video / image overlay command’.

  LG Bamba

• Cutting multiple videos with x amount of time from the end (ffmpeg ?)

  25 octobre 2020, par Jack Fitzpatrick

  I have no history with ffmpeg, but I am assuming this would be the right tool for the job. I am trying to cut a folder of videos with different lengths. I want to cut them all to be 12 seconds from the end. That is : on a 30 second video I would be left with 00:18 - 00:30. 00:00-00:17 would be deleted.

  


  I am on mac OS Mojave. It seems that ffmpeg is the right tool for the job to batch edit these videos. Can someone walk me through this ? I have some basic understanding but will need the code/script explained so that I can apply it to my own use. Thank you very much.