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Activity Forums Compression Techniques H264 (mp4) format to Avc (mp4 ) format?

  • H264 (mp4) format to Avc (mp4 ) format?

    Posted by William Henderson on July 27, 2014 at 12:54 am

    I created my friend a H264 (mp4) 4.31 MB, but when he got it back the format is AVC with a (mp4) 3.1 MB. How did they do that? So the H264 mp4 will not play on Windows but the AVC mp4 will ? New to this trying to learn more!!!!

    Craig Seeman replied 12 years, 1 month ago 3 Members · 7 Replies
  • 7 Replies
  • Craig Seeman

    July 27, 2014 at 2:04 am

    AVC is the same as H.264

    H.264 MPEG-4 AVC
    https://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

  • William Henderson

    July 27, 2014 at 2:15 am

    True. I understand that. I was wondering when I hit command I the finder tells me the new one is in the AVC Coding format 848×480 3.1MB

    BUT THE COMPRESSION I GAVE HIM WAS H264 format 848X480 4.1 MB

  • Craig Seeman

    July 27, 2014 at 4:54 am

    It’s how it looks at the metadata. That’s all for the most part.

  • William Henderson

    July 27, 2014 at 4:58 am

    Meant to say the h264 mp4 would not play on windows but the avc coding would

  • William Henderson

    July 27, 2014 at 4:59 am

    Thanks for knowledge Craig!!

  • Rich Rubasch

    July 28, 2014 at 10:09 pm

    What was the file extension on each encode? We sometimes deliver a file with .mp4 and copy the file and change the extension to .mov. One is great for Quicktime users and the other works on Windows and Android etc.

    But it’s the same file….just a different extension.

    Rich Rubasch
    Tilt Media Inc.
    Video Production, Post, Studio Sound Stage
    Founder/President/Editor/Designer/Animator
    https://www.tiltmedia.com

  • Craig Seeman

    July 28, 2014 at 10:44 pm

    Since Windows 7, WMP 12 (and up) will play H.264 .mov in addition to H.264 .mp4. WMP11 on XP would need Quicktime. Since H.264 .mp4 can play in both WMP12 and Quicktime, that’s what I’d use.

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