X Scale: 0.7031 Y Scale: 1.0000
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Anamorphic videoTable of Contents
IntroductionUsually a MiniDV consumer camera records in 4:3 format. Some good cameras can record 16:9 video, adding black bands at the top and at the bottom of the video. Some prosumer cameras are able to record 16:9 video with no black bands at all, squeezing the video during record. This is a very nice feature, called anamorphic mode or sometimes squeeze mode.
To know more about Pixel Aspect Ratio read this Artbeats article. Examples
Here you can see a classic PAL 4:3 video footage. Note the area where the pixels are visible, thanks to the Downsample effect on a mask. They are nearly square.
This picture shows a PAL 16:9 anamorphic video footage. In the area with enlarged pixels you can see they are far from square. The canvas is wider than the usual 4:3.
The same clip is now shrunk into a 4:3 canvas thanks to the Scale effect. Two blank bands appears at top and bottom of the video. The video is letterboxed. Pixels are far from square.
How to load anamorphic video in CinelerraCinelerra supports anamorphic video. You can load anamorphic video just like any other video. Cinelerra will show it vertically squeezed (too thin). Cinelerra will let you edit your project flawlessy. Unless you start adding titles or loading other kinds of source files: this is where the troubles begin. How to add titles to your 16:9 anamorphic projectIf you add a title (using the Title effect) to your 16:9 anamorphic project, Cinelerra will display it distorted (fattened). How to fix that? Follow the instructions below as if you were dealing with 4:3 footage. How to add standard 4:3 footage to your 16:9 anamorphic projectLet’s assume you are working to a project and you set the format to 16:9 anamorphic. If you add a piece of footage that is standard 4:3 DV, Cinelerra will display it distorted (fattened). How to fix that?
PAL: X Scale: 0.7031 Y Scale: 1.0000 NTSC: X Scale: Y Scale: Make sure the Constrain ratio option is not checked. We now need to resize the track to fit the whole canvas. Enter values according to your standard: PAL: 1024x576 NTSC: How to add 16:9 anamorphic footage to your standard 4:3 projectIf you add 16:9 anamorphic footage to your standard 4:3 project Cinelerra will display it distorted (squeezed). How to fix that?
PAL: x: 1.0000 y: 0.7031 NTSC: x: y: Make sure the Constrain ratio option is not checked. Enjoy! |