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DVD 16:9 Letterbox Height in 4:3 Example

Last Updated: 2/14/2017

The use of 16:9 video for 4:3 displays with letterbox framing for DVD has the following values for the source and destination pictures.

The following rectangle values are used in the PictureSourceRect16thPel member of the DXVA_BlendCombination structure for the source picture:

  • top = 0

  • bottom = top + (16 X vertical_size) = 7680 or 9216

The following rectangle values are used in the PictureDestinationRect member of the DXVA_BlendCombination structure for the destination picture:

  • top = vertical_size / 8 = 60 or 72

  • bottom = 7 X vertical_size / 8 = 420 or 504

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