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Frame Overhead

Discussion in 'DivX / XviD' started by veredes, Jun 22, 2005.

  1. veredes

    veredes Member

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    My files are not coming out to the right size in Gknot, and I am just looking for an explaination of how you would go about calculating the correct frame overhead to account for the size difference. Are there are any bitrate calculator programs that take this into effect better than gknot?
     
    veredes, Jun 22, 2005
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  2. celtic_d

    celtic_d Regular member

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    GKNot has a built in calculator which should take stuff like that into account. How off are your files?
     
    celtic_d, Jun 22, 2005
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  3. veredes

    veredes Member

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    The final files are about +or- 5 megs off.
     
    veredes, Jun 22, 2005
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  4. The_OGS

    The_OGS Active member

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    Gknot is very precise when calculating.
    It calculates frame overhead by specific audio type (AC3, CBR MP3, VBR MP3) but you must click to select the audio type, then make sure the 'calculate overhead' box is ticked.
    GKnot also allows you to adjust for any 'extra' files to be fit within your container size (ie. 700MB) such as XviD codec and AC3Filter, if you wish to burn CDRom with these files included.
    I have found if I set size to 701MB, I get tiny bit more bitrate but file(s) still fit.
    That's too unpredictable - review your settings, as should be very precise :^)
    No.
    Regards
     
    The_OGS, Jun 22, 2005
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  5. veredes

    veredes Member

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    OK, thank you. I will try it again...hoping it was my mistake. I noticed that when I do a xvid rip, the calculate frame overhead unchecks itself by default. Could this be my problem, possibly I'm not supposed to do it with xvid?
     
    veredes, Jun 23, 2005
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  6. The_OGS

    The_OGS Active member

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    No, you should.
    Generally you would go through GKnot, setting it up the way you require/desire.
    You then save that as your 'default' settings.
    Then, each time you select the next empty slot (to do a new backup) you would first load your default settings :^)
    So after you run DGIndex, before you open the D2V file you would rename the slot, then open the D2V and you are off & running...
    But initially loading the defaults for slot '9' or whatever, before you actually begin working with the new backup, will wipe the settings from your old backup and reset everything to baseline.
    But obviously, go through and make sure everything is just-so, before you save it as your baseline default ;^)
    Make sure that overhead setting is ticked, perhaps with VBR/AC3 as default, before you save as baseline default.
    Do a quick check, last thing before you let it run, to make sure all is perfect, LoL (perfection is no accident :^)
    GKnot - good program.
    I've tried 'em all, going back to the '90s...
    L8R
     
    The_OGS, Jun 23, 2005
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  7. veredes

    veredes Member

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    Thank you, good to know. I just figured that if the setting defaulted to off, I wasn't supposed to use it...
     
    veredes, Jun 23, 2005
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