Some simple questions...

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  • Tiger__Style
    Junior Member
    Junior Member
    • Apr 2003
    • 15

    Some simple questions...

    Hi, I'm using Gordian Knot 0.28.2 Beta and have a few questions for y'all...


    1. I want to have permanent subtitles on my G-Knot encoded movies.
    I use Vobsub within G-Knot to rip the subtitles from the IFO, but it creates 2 files; 1 idx-file & one sub-file. I add both of these with the add files button on the bitrate tab, but which one should i add using the Vobsub files button in the Save & Encode window?


    2. Sometimes in the codec settings window, under hints for conformance, i get a message saying: Unacceptable rate control. This is when the setting is 1-pass quality-based, on my compression test; but i have sometimes gotten it in the codec settings window before I'm encoding the movie also. (Not before the comp. test) What does it mean?


    3. What does the scene threshold slider do, how does this effect the movie?
  • khp
    The Other
    • Nov 2001
    • 2161

    #2
    Re: Some simple questions...

    Originally posted by Tiger__Style
    ..
    1. I want to have permanent subtitles on my G-Knot encoded movies.
    I use Vobsub within G-Knot to rip the subtitles from the IFO, but it creates 2 files; 1 idx-file & one sub-file. I add both of these with the add files button on the bitrate tab, but which one should i add using the Vobsub files button in the Save & Encode window?
    When you use permanent subs there is no need to add them to the bitrate calculation, because they will be part of the video image. And doesn't directly affect the filesize, although it does reduce compressability a few % points.
    In the save and encode window you are supposed to select the idx file.

    Originally posted by Tiger__Style

    3. What does the scene threshold slider do, how does this effect the movie?
    Scene threshold refers to the codec's sensitivity to scene changes. The codec will insert a keyframe when it detects a significant change in the image. If I remember correctly a higher scene threshold will result in less keyframes. And a lower threshold will result in more keyframes. Or maybe it's the other way around . Keeping it at 50% is usually a good choice.
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