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Activity Forums Compression Techniques Total newbie :(

  • Lou Logan

    April 5, 2013 at 6:29 pm

    [Jim Sustacek] filter="-vf crop=1500:1080:210:0"

    filter= and its associated quotation marks should be removed.

  • Thomas Monk

    April 6, 2013 at 10:40 am

    Okay, thanks guys. That double %% did the trick and I also had to put path names in 8.3 format; e.g. “Program Files” became “Progra~1”.

    I have some issues with output format/quality and cropping at the moment, but I’m sure I’ll get that sorted now I’m actually generating a movie.

    Here’s the basic batch file entry I’m using at present:

    ffmpeg -f image2 -r 24 -i C:\Progra~1\ffmpeg\frames\reel_1\frame-0%%05d.jpg -target pal-dvd movie.mpg

    The -start_number option works, although I can’t find it mentioned anywhere. I was trying to find if there’s an equivalent -end_number option. I’ll have an experiment.

  • Reuben Martin

    April 6, 2013 at 4:14 pm

    There is a “-t” option to specify duration from the start point, or there is a “-to” option to specify the stop point.

    The official documentation can be found here: https://ffmpeg.org/ffmpeg.html

  • Lou Logan

    April 7, 2013 at 7:10 pm

    Additional documentation is here: https://ffmpeg.org/documentation.html

  • Thomas Monk

    April 8, 2013 at 8:03 am

    Thanks Lou 🙂

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