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    Video resampling help (enlarge)

    Discussion in 'Windows OS and Software' started by masterchef341, May 1, 2012.

  1. masterchef341

    masterchef341 The guy from The Notebook

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    I have a very high quality (but not very space efficient) video shot in 16:10 1440x900. It's an mjpeg format video in an avi container with PCM audio.

    Now, I want a 1080p version of this video, and I want to upsample using lanczos3 or bicubic to 1728*1080.

    So basically, can someone help me upconvert an mjpeg/avi 1440x900 video file to 1728x1080 in a lossless format/whatever container?

    I'm going to have to do additional processing to the video in 1080p and convert again, which is why I want a lossless intermediate step (above).

    Also- I tried avidemux, but I was having problems with it. I couldn't get it to output a non-scrambled result after upscaling. Maybe someone has some ideas about that?
     
    masterchef341, May 1, 2012
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  2. daver160

    daver160 Notebook Deity

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    I'm not exactly well-versed in the world of video de/encoding, but I believe that MPEG2 is supposedly good at keeping details in a video. I don't know if it is truly lossless, but I've found that when I want to have an intermediate format (like you) to be able to do some work on, I tend to use MPEG2 with a bitrate 15-20 Mbit. Then the final product I convert to MP4 using x264 (I use an Apple compatible profile in Handbrake to iDevice users don't run into The Wall of iNcompatibility).

    This is just my limited knowledge, but thought I'd share all the same (in case other users out there might be interested).
     
    daver160, May 1, 2012
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