Adding black bars to MKVs

Discussion in 'Mac Basics and Help' started by richardp2020, Jun 24, 2011.

  1. richardp2020 macrumors newbie

    Joined:
    Oct 8, 2007
    #1
    I have an old 720p video file from my video camera that I cropped down to remove some unwanted footage from the top, after which I converted to an mkv. The file is now 1280*688 (or 688p), my new blu-ray player plays MKVs natively, but they have to be standard resolution (1080p, 720p, 576p, 480p). Basically what I want to do is add 16 pixel black bars to the bottom and top of my video file, so that it is playable in my blu-ray player. I've demuxed the audio and video, so I have one AC3 file and the video h264 file that I want to work on. Can anyone suggest an easy way of doing this?
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    A solution would be getting the 30 day fully functioning trial of Adobe After Effects directly from Adobe (need to register) and use a 1280 x 720 composition with black as background and add your video as layer in the middle and export it again.

    Sorry, I don't know of another application to do it more simply, except maybe using MPEG Streamclip and stretching the video vertically in its output options.
     
  3. jackerin macrumors 6502a

    Joined:
    Jun 29, 2008
    Location:
    Finland
    #3
    Ok, I don't know if this will actually work, but I had a look at the Export to Quicktime setting in MPEG Streamclip and you can actually set a negative crop, which gave black bars at least in the preview window. I don't want to start doing test since it's in the middle of the night here... :D
     
  4. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #4
    Did learn something new today and it worked. Thank you.

    Export settings:
    [​IMG]

    Result:
    [​IMG]
     

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