Correct SD Aspect Ratios. Feature Sugg., not question/glitch
Posted: 27 Jun 2012 12:12
Hello. Love the VLC work. Amazing stuff. However, there is one niggling thing. The aspect ratios for Standard Definition are all wrong.
A video at 720x480 (DVD or Blu-Ray or DVB) has the same Pixel Aspect Ratio as 704x480 (which is 10:11 or 40:33)
Likewise for 720x576 and 704x576.
DVD Players, Blu-Ray Players, Adobe Premiere (CS4+), Sony Vegas, Final Cut, etc ALL use this pixel aspect ratio.
That means, yes (!), a video with 720 horizontal pixels has a Display Aspect Ratio that is slightly WIDER than 4:3 or 16:9.
The only violators of this principle are most of the Hollywood DVDs. They use all 720 horizontal pixels and do a straight re-scale with a Pixel aspect ratio of 8:9 or 32:27. However, films are best seen on Blu-Rays, so this is irrelevant. Some studios DID follow the guidelines, see the Bond films or the Criterion Collection discs.
Standard Definition content will never be up-scaled to 1920x1080. It will only be offered at 720x480 (or 720x576). The current VLC has no option for the correct aspect ratio. (How about a checkbox for Generic vs ITU pixels on DVDs and Standard Definition Blu-Ray content for futureproofing?)
All video (not film) content is universally on the ITU system. Why must my Doctor Who DVDs always be in the wrong aspect ratio? Why must DVD-ready files that I edit be displayed this way? I shouldn't have to re-encode at 704x480 to avoid this. Ripping is also a pain in the butt with many discs and I'd rather just pop and play. This bugs even more now that we all have flat panels, which show those "ovals" so clearly.
You have a chance to be the FIRST video player software that gets this right! WiMP, MPC-HC, Totem, Dragon, Xine, etc all get this wrong. If we can have options for optimizing everything and the kitchen sink, we can have this, too, no?
For many years Adobe (with no video background, unlike Sony, for example) got this wrong and when they corrected it, there was a lot of confusion. The links below should help.
http://help.adobe.com/en_US/encore/cs/u ... db29-7fb1a
http://forums.adobe.com/thread/700836
http://help.adobe.com/en_US/PremierePro ... 524Ea.html
A video at 720x480 (DVD or Blu-Ray or DVB) has the same Pixel Aspect Ratio as 704x480 (which is 10:11 or 40:33)
Likewise for 720x576 and 704x576.
DVD Players, Blu-Ray Players, Adobe Premiere (CS4+), Sony Vegas, Final Cut, etc ALL use this pixel aspect ratio.
That means, yes (!), a video with 720 horizontal pixels has a Display Aspect Ratio that is slightly WIDER than 4:3 or 16:9.
The only violators of this principle are most of the Hollywood DVDs. They use all 720 horizontal pixels and do a straight re-scale with a Pixel aspect ratio of 8:9 or 32:27. However, films are best seen on Blu-Rays, so this is irrelevant. Some studios DID follow the guidelines, see the Bond films or the Criterion Collection discs.
Standard Definition content will never be up-scaled to 1920x1080. It will only be offered at 720x480 (or 720x576). The current VLC has no option for the correct aspect ratio. (How about a checkbox for Generic vs ITU pixels on DVDs and Standard Definition Blu-Ray content for futureproofing?)
All video (not film) content is universally on the ITU system. Why must my Doctor Who DVDs always be in the wrong aspect ratio? Why must DVD-ready files that I edit be displayed this way? I shouldn't have to re-encode at 704x480 to avoid this. Ripping is also a pain in the butt with many discs and I'd rather just pop and play. This bugs even more now that we all have flat panels, which show those "ovals" so clearly.
You have a chance to be the FIRST video player software that gets this right! WiMP, MPC-HC, Totem, Dragon, Xine, etc all get this wrong. If we can have options for optimizing everything and the kitchen sink, we can have this, too, no?
For many years Adobe (with no video background, unlike Sony, for example) got this wrong and when they corrected it, there was a lot of confusion. The links below should help.
http://help.adobe.com/en_US/encore/cs/u ... db29-7fb1a
http://forums.adobe.com/thread/700836
http://help.adobe.com/en_US/PremierePro ... 524Ea.html