YOUR STORY PLAYS HERE
Home » Categories » Cablecast

2:3 Pull down files.

We have many customers updating to newer versions of Cablecast that find that older files that have validated in the past are not failing the validation Often time this comes from files that have pulldown settings on them causing the frame-rate to be invalid. 

 

Pulldown/Pullup are methods used to modify the frame-rate of a file. It is most often seen when using film/movie content that has been shot at 24FPS to get the frame rate up to the 29.97 that it needs to be for broadcast. The ratios of pull down are basically telling you at what increment the file has to replay a frame of video to get the frame rate up to 29.97.  2:3 pull down is used to get the frame rate of film based files shot at 24fps up to the 29.97 needed for broadcast.

 

When dealing with files that have a 29.97 frame rate natively any pull down setting will make the file invalid. So when ripping a file from DVD or transcoding a file with a broadcast frame rate not dropdown or pullup should be used. 

3 (1)
Article Rating (1 Votes)
Rate this article
  • Icon PDFExport to PDF
  • Icon MS-WordExport to MS Word
Attachments Attachments
There are no attachments for this article.
Related Articles RSS Feed
Notes for using Utah Scientific routers with Cablecast
Viewed 1948 times since Fri, Jan 9, 2015
Cablecast does not work on older devices running iOS 8
Viewed 1388 times since Fri, Feb 27, 2015
Your public web site can look as awesome as Tighty.TV’s public web site
Viewed 8405 times since Mon, Dec 22, 2014
Cablecast 5.2.12 is Released
Viewed 1170 times since Fri, Oct 30, 2015
Contact information not being saved for automatic database back ups
Viewed 1922 times since Mon, Oct 6, 2014
Network Requirements for Live and VOD
Viewed 2592 times since Fri, Jul 17, 2015
Live Stream Audio Can Become Out of Sync or Glitchy
Viewed 381 times since Tue, Oct 9, 2018
Source Incomplete VODs never progress
Viewed 1534 times since Fri, Oct 3, 2014
Submitting a bug report to Tightrope
Viewed 2345 times since Thu, Jan 8, 2015
Running TRMS Broadcast Products as Active Directory Domain Members is not Supported
Viewed 2014 times since Tue, Sep 1, 2015