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  1. Member
    Join Date
    Aug 2018
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    Wrocław
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    Hi.

    I have a video downloaded from YT at 30fps.
    But the original one was recorded with a different framerate, because every 5 frames, two consecutive frames are the same (but I don't know if this is the case in the whole material) ..
    Anyone have an idea to make a movie with the original framerate (probably 25fps or 23.976fps) from such a movie?
    It would be enough for me to convert the material with detecting and deleting these frames.
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  2. Member
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    Aug 2018
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    Wrocław
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    I guess I found a pattern:

    The sequence of 6 frames looks like this:
    012x345
    (where x is duplicate frame # 2)

    It comes out that the original is 25fps, and the one downloaded from YT is 30fps.
    And how to convert it efficiently?
    (I have VirtualDub, Vegas, ffmpeg ...)
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  3. Code:
    ffmpeg -i input.ext -vf decimate=6 output.ext
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  4. Member
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    Aug 2018
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    Wrocław
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    Originally Posted by jagabo View Post
    Code:
    ffmpeg -i input.ext -vf decimate=6 output.ext
    And it automatically detects which frame is duplicated?
    I can see that this is how it works.
    How simple and effective! Whoever came up with this function is a genius
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  5. Yes, out of every group of N frames it discards one duplicate frame.
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