• Compression Techniques

  Trying to encode H.264 480p

  Posted by Thomas Hardy on July 26, 2011 at 8:03 am

  I’m trying to encode avi uncompressed to h264 in 480p.

  I’m using a composition 16:9 so.. when I try to reduce the size I lock the aspect ratio to 16:9 and change the height to 480, the width changes automatically to 853.

  Well, I can encode in 360p, 720p, 1080p, but no success with 480p.

  I’m using “H.264 Encoder”, is free. https://www.h264encoder.com/

  Any ideas?! I really need 480p and h264, I will try with ripbot and megui too while I keep looking for a solution.

  Thomas Hardy.-
  Newbie and Learning.

  Craig Seeman replied 14 years, 9 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Craig Seeman

  July 26, 2011 at 3:34 pm

  [Thomas Hardy] ” but no success with 480p”

  I don’t understand your issue.
  16×9 480p is 853×480 which you have (although I prefer 854×480 since odd numbers aren’t great for encodes).

  I would generally recommend using MPEGStreamclip if you want a good free and widely used encoder.
  https://www.squared5.com/
• 

  Thomas Hardy

  July 27, 2011 at 12:02 am

  Sorry, I’ve fixed it.

  The issue was.. the math is 480 x 16⁄9 = 853.333…

  So I’ve used 853×480, it seems like the correct resolution to encode in h264 encoder is 854×480, now worked like a charm.

  Thanks for your help

  Thomas Hardy.-
  Newbie and Learning.
• 

  Craig Seeman

  July 27, 2011 at 12:15 am

  So know you know, odd numbers aren’t grade for encodes. Some, but not all, will reject odd numbers. Generally dimensions should be multiples of 4, 8, 16 (best).

  This chart is good for most codecs.
  https://www.flashsupport.com/books/fvst/files/tools/video_sizes.html

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