MPEG2 Rendering issue with Black bars
by Sean Roosevelt
on
Oct 6, 2008 at 2:57:02 pm
Let me start off with what I am doing in AE.
I'm creating a menu in the comp at 720 x 540 and stretching it to 720 x480 right before I render, to compensate for the square and non-square pixel aspect ratio. Once I render the MPEG2 out it will have black bars on each side of the image with about 3-4 pixels on each side. Now when I render out a jpg sequence or a quicktime movie they will not have these black bars on either side. Is this a problem with the encoder? Is there a solution to this? I'm working in After Effects 7 standard.
Re: MPEG2 Rendering issue with Black bars by Dave LaRonde on Oct 6, 2008 at 8:05:50 pm
[Sean Roosevelt]"Once I render the MPEG2 out it will have black bars on each side of the image... when I render out a jpg sequence or a quicktime movie they will not have these black bars on either side. Is this a problem with the encoder?"
It certainly sounds like it to me. AE isn't the world's hottest mpeg2 encoder.
If I were tackling the project, I'd render using Quicktime's Animation codec at best quality, then I'd use some other application to make the mpeg2.
What happens if you use my preferred workflow with either the jpeg sequence or QT's you've already rendered? Do you still get the black bars?
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
