• Compression Techniques

  How to tell if m2v file is top first or bottom first

  Posted by Jeff Paul on June 30, 2007 at 7:08 pm

  I’ve got some m2v files that were encoded using Compressor. Is there a quick way to check if they were encoded with Top First or Bottom First? I want to double-check that they were encoded correctly, and if there’s a quick way to tell without having to burn some tests first, it would save me a whole lot of time.

  Thanks!
  -Jeff

  Ben Waggoner replied 18 years, 11 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Ben Waggoner

  July 2, 2007 at 12:22 am

  BitRate Viewer will tell what the file is flagged at.

  However, that won’t tell you if the file was flagged correctly in the first place. I generally wind up taking it into After Effects and dropping it onto a 60p timeline, and seeing which field order gives me correct motion.

  My compression blog: https://on10.net/blogs/benwagg/

  My compression class at Stanford: https://digitalmediaacademy.org/courses/video-compression-training.html

Reply to this Discussion! Login or Sign Up