Mpeg2 -> Divx

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  • Shark_y
    Junior Member
    Junior Member
    • Feb 2002
    • 1

    Mpeg2 -> Divx


    I'm trying to convert videos captured with PowerVCR to Divx 4.12 ones.
    I.e. files are coded as Mpeg2 video at 25 fps 44100 kHz audio.
    I use Xmpeg for double passage compression.
    Finally on my intentions I want to encode to Mp3 audio in a second round with VirtualDub.

    The problem:
    Audio is choppy if I say to Xmpeg to use the same sample rate (44100) as the original file and is mostly sync with the video but slightly higher tuned (played faster than the original file so to have constant holes).

    If I try tho convert using a sample rate of 48000 kHz the audio is more correspondent to the original, less or no holes, but it's not synched to the video. Is like pulling a too shoort blanket! Either your feet or your head are uncovered!

    What should i do?

    Thanks!
  • setarip
    Retired
    • Dec 2001
    • 24955

    #2
    Try initially capturing with 48,000 PCM (uncompressed) sound. Don't change it to 44,100 until you're into the VDub/MP3 stage. This should maintain synchronization.

    By the way, you are using the same 25FPS under Flask, aren't you?

    Let us know of your success ;>}

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    • techno
      Digital Video Master
      Digital Video Master
      • Nov 2001
      • 1309

      #3
      Don't capture directly to DIVX 4.12 (if u r)

      Capture in no recompression mode

      Then convert to MPEG2 using flask (I think) or TMPGENC

      then use vidomi to convert MPEG2 > DIVX (personally use 3.11alpha)

      take a look at this MPEG2 broadcast quality video I captured an encoded in TMPGENC about 3-4 times, people say "u lose quality" but for some reason, I gained quality!

      ftp://ftp.imbetterthanyou.com/pub/in.../lb-my_way.mpg

      Techno

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