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buffer underflow

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by dmbrown99, Apr 8, 2003.

  1. dmbrown99

    dmbrown99 Member

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    hi, i'm currently trying to multiplex a divx video source and an mp2 audio source (originally ac3). the problem is after it has multiplexed i get a message saying '1 s packets cause buffer underflow'. is this why the audio falls out of sync with the video about half way through? please help.
     
  2. Dela

    Dela Administrator Staff Member

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    Well yes that probably would be the problem. What are you using to multiplex?? tmpgenc??
     
  3. dmbrown99

    dmbrown99 Member

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    yeah im using tmpgenc. it falls 1 sec out of sync at the same place everytime. then later on in the film there is a few bad frames and then the sound falls about 5 secs out of sync. i've tried to fix the bad frames but it doesn't work.
     
  4. Dela

    Dela Administrator Staff Member

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    One thing I dont understand is you said you are trying to multiplex a divx video source with an mp2 source, is that correct??
     
  5. dmbrown99

    dmbrown99 Member

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    yeah thats correct, the divx video came with ac3 audio which tmpgenc rejected so i then changed the ac3 source to mp2, i thought i could now multiplex the video and audio together and considering the avi original file played perfectly i cant understand how it won't go in sync! frustrating is an understatement. p.s im hoping to get this film on VCD.
     
    Last edited: Apr 14, 2003
  6. Dela

    Dela Administrator Staff Member

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    I didnt even know you could use TMPGEnc to multiplex a divx with mp2 audio :S, or am i picking you up wrong?? lol
     

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