aspect ratio

16:9 HD Video Output As 4:3 HD or SD

Overview A film transfer customer wanted their output in two formats:

1)            16:9 HD on a Blu-ray and 16:9 SD on DVD

2)            4:3 HD on a Blu-ray and 4:3 SD on DVD

The footage is and has been editied in the highest resolution and we did not want to loose quality by zooming in or such.  What I wanted was to crop the sides of the 16:9 image to a 4:3 image without loosing any of the top and bottom.

The original image is 1920 x 1080 (16:9) and needs to go to 1440 x 1080 (4:3).

Steps:

  1. Create a copy of the original 16:9 vegas project and name the new one 4-3 or something like that.
  2. Here’s the typical HD properties window(.....missing pic):
  3. Change the new 4:3 project properties to:
    1. Leave the “Template” as is.
    2. Change the “Width” field to 960 and the “Height” to 720 and other properties fields will automatically adjust....such as the “Template” and “Pixel aspect ratio” fields.
    3. Click the “Apply” button.
  4. Select the “Event Pan/Crop” tool to adjust the image to a 4:3 image.  This must be done for every event in the project (Ultimate S matches aspect to the project aspect however it zooms in to do it and we want to crop the sides so that we do NOT loose quality).
    1. Change the “Width” field under the “Position” group from 1920 to 1440.  This will cause the left and right sides of the frame to move in and the top and bottom to remain fixed.
  5. Render the footage using the follow “render as” settings.  This will render the footage out as 4:3 and will fill the frame...no black bars.
    1. “Template” set as “Blu-ray 1440x1080-24p, 25 Mbps video stream”
    1. “Render loop region only” checked.
    2. “Save project markers in media file” checked.
    3. NOTE: Blu-ray does not support 29fps and therefore DVDA will recompress the entire video.  24fps (23.976) is supported.

NOTE: For 4:3 HD rendering out for a DVD

  • Make sure to not to select the "stretch video to fill output frame size (do not letterbox)"
  • Also, if the project is using tracks for bars in the output (which an HD project must have for HD 16:9), then the bars MUST be turned off if rendering as 4:3 for DVD.

Film Scanned Output Files - What NLE's Support

Overview Many times people ask whether or not their NLE can support the film output AVI files.  Here's info on this topic.

Output File Format

With the latest version of CineCap Velocity HD ver 1.4 (Mar 2011) we have a couple of output options.

1)  We can output files using the Blackmagic Motion JPEG codec in an AVI wrapper.  The Motion JPEG codec is a very common codec used by many camera manufacturers.  This codec is compatible with both MAC and PC based systems.

2)  For a codec independent file format we can now generate sequenced image files.  One image is created for each frame of film and therefore this makes the "file" independent of any codec.

MAC Users

iMovie - according to wiki's comments regarding iMove 8 (released August 2007), ".....Motion JPEG encoded AVI files do appear to be recognized, this is the most common format used by digital cameras (click here to check the full article).  At this point of time I believe the latest version is iMovie 11.

I tested iMovie 3.03 on the Power MAC and the avi file does load with no problems.  One problem is that iMovie 3 and I believe 4 only support 4:3 aspect ratio.  Pretty sure that ver 6 supports widescreen 16:9.

Final Cut Pro - According to a customer (Brian Lye) back in mid 2011 using the film avi files in Final Cut Pro ..."the process is very easy.  So if you have customers with a similar inquiry the steps are: "

  • Bring the .avi footage into Compressor (program comes with Final Cut Pro package).
  • Put the settings for Apple ProRes 422 onto the file.
  • Hit Submit.
  • Voila!
  • It is easy to now edit within Final Cut.