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Pillaring in MPEG-2
I re-opened an old project that rendered perfectly to H.264. It plays through on the timeline perfectly (no pillars). However, when I render to MPEG-2 the slides are just slightly too ‘narrow’, such that I get a thin ‘pillar’ of the underlying video track showing up on either side of the slides.
The footage is AVCHD from a Canon HF S10, transcoded to Cineform .avi. My project is HD 1080-60i (1920 x 1080, 29.970fps), Upper field first, Pixel Aspect Ratio 1.0000 (Square).
Under Render As, I selected MPEG-2, NTSC Video Stream. However, the description reads: 29.970 fps, 720×480 Lower field first, YUV, 6MBps, PAR 1.212. I do not see anywhere to change these settings to match my project. What can I do?
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1 Reply
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My project is HD 1080-60i (1920 x 1080, 29.970fps)… Under Render As, I selected MPEG-2, NTSC Video Stream. However, the description reads: 29.970 fps, 720×480 Lower field first, YUV, 6MBps, PAR 1.212.
If you do the math you will see that HD is a perfect 16:9 ratio while DV Widescreen is not. This is why you see thin pillarboxes. DV Widescreen is slightly wider than 16:9. To compensate, you can check the box in the render dialog that says “[x] Stretch video to fill output frame size (do not letterbox)” or if you don’t want that slight stretch, you can drop your HD project into a DV Widescreen project (nested) and crop the entire HD event to Match Output Aspect.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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