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rogerc91763437
Participating Frequently
July 20, 2020
Question

Premier Pro 14.3 export h.264 moov atom location?

  • July 20, 2020
  • 2 replies
  • 3516 views

Hi,

 

I found some forum posts that say Adobe Media Encoder puts the moov atom at the beginning of an h.264 export.  If I export from within Premire Pro is the moov atom also at the front? 

 

Thanks

    This topic has been closed for replies.

    2 replies

    Graeme Bull
    Community Expert
    Graeme BullCommunity Expert
    Community Expert
    July 22, 2020

    I would very much expect that it is. This is an interesting question as this issue came up a long long time ago for encoding for live streams and Adobe Media Server had to write MOOV atoms in the right spot or streaming would fail and all kinds of issues came up. As such, I believe Adobe learnt a lot from all that and then YouTube carried that forth to how they do their streaming now too. It's an important thing to be honest and I would expect that there isn't any software out there that puts it in a different spot.

      R Neil Haugen
      R Neil Haugen
      Legend
      July 21, 2020

      And your reason for asking is ... ?

       

      Neil

      Everyone's mileage always varies ...
      R
      rogerc91763437Author
      Participating Frequently
      July 21, 2020
      • I want the moov atom file to be written to the beginning of the h.264 file.  I am not sure if exporting from premiere pro does this.  The video file will stream while buffering.  As opposed to waiting for the file to download if the moov atom data is written to the end of the h 264 file.   On streaming platforms. 

       

       

        R Neil Haugen
        R Neil Haugen
        Legend
        July 21, 2020

        Its part of the youtube specifications for best practice.    Mp4 fast start.  There is a thread about it on here.  With regards to media encoder.  It implies premiere does the same.  But does not specifically state it did.  

         

         


        As I said, I've never heard of this ... not that you're not correct, just that ... I've never heard of it. Nor had it mentioned in the several (read: many) tutorials and lengthy articles I've been through on prepping for web including YouTube.

         

        Apparently, not many worry about it, which would seem to indicate there isn't a notable problem. But as noted,  I don't know for certain.

         

        Neil

        Everyone's mileage always varies ...
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