avi seems choppy

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  • marinenco2000
    Junior Member
    Junior Member
    • Oct 2004
    • 5

    avi seems choppy

    Hello all,

    I am having no problems encoding files, but when I play them back the video is not smooth. About once every two seconds the video hangs slightly and resumes. Video and sound sync is good and stays matched throughout file. I believe it may have something to do with frame rate but am not sure. If any one knows how to fix this problem, I would greatly appreciate any assistance.

    Thanks
  • ormonde
    Digital Video Explorer
    • Dec 2003
    • 3735

    #2
    Open the original AVI file(s) in "VirtualDubMod" ("File" > "Open Video File"). Then go to "File" > "File Information" and post everything that is listed in both the video and audio sections of the dialog box, or post a screenshot of the information.

    Comment

    • marinenco2000
      Junior Member
      Junior Member
      • Oct 2004
      • 5

      #3
      thanks for the help. the info requested is:
      frame size: 352x240, 29.970 fps (33367 microsec)
      length: 236494 frames (2:11:31.02)
      fourcc code: fourcc: [DX50] DivX 5.x codec
      decompressor: DivX 5.2.1 codec
      number of key frames 6961
      min/avg/max/total key frame size: 952/9537/41631 (64838k)
      min/avg/max/total delta frame size: 50/2315/34422 (519024k)
      data rate: 606 kbps (0.94% overhead)

      sampling rate: 44100Hz
      channels: 2 (stereo)
      sample precision: N/A
      audio tag: tag: 0x0055, acm decodable, MP3
      compression: fraunhofer IIs MPEG layer3 codec
      layout: 591 chunks (0/0.00s preload)
      length: 94691658 samples (2:11:30.97
      min/avg/max/total frame size: 80/400/962 (232K)
      data rate: 96 kbps (5.66% overhead)

      Comment

      • ormonde
        Digital Video Explorer
        • Dec 2003
        • 3735

        #4
        Try running one of the files through a program called "AviFiXP". Also, if you downloaded these files originally, you never know what to expect.
        Last edited by ormonde; 24 Oct 2004, 01:05 AM.

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        • marinenco2000
          Junior Member
          Junior Member
          • Oct 2004
          • 5

          #5
          I checked for errors and AviFiXP found none. Do you think it has something to do with the fact that I have almost 7000 key frames? Maybe if I put a key frame at the beginning and one in the middle it would alleviate the choppiness.

          Comment

          • marinenco2000
            Junior Member
            Junior Member
            • Oct 2004
            • 5

            #6
            Oh and I didn't download these files. They are DVD backups. I am using a program called imToo DVD Ripper.

            Comment

            • marinenco2000
              Junior Member
              Junior Member
              • Oct 2004
              • 5

              #7
              Ahh, that was it. I had the key frame to set at every VOB ID marker. That way the sound always stays synched but the picture halts for just an instant. You may want to pass that on. I'm sure others are having the same problem. Thanks for the help, ormonde.

              Comment

              • ormonde
                Digital Video Explorer
                • Dec 2003
                • 3735

                #8
                "Thanks for the help, ormonde."

                Glad to be of help

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