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What is hnti atom inside mp4
paultaylor
post Sep 22 2011, 11:05
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I have an mp4 with just a hnti and within that a rtp atom inside the udta atom, anybody know what these atoms are for ?
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benski
post Sep 22 2011, 16:37
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QUOTE (paultaylor @ Sep 22 2011, 06:05) *
I have an mp4 with just a hnti and within that a rtp atom inside the udta atom, anybody know what these atoms are for ?


Hint tracks to aid a streaming server in remuxing the M4A file to an RTP stream.

Here's an article from Bill May (libmp4v2 author) describing them in a little more detail. It's a bit libmp4v2 specific but it should give you a general idea.
http://svn.gnumonks.org/trunk/21c3-video/c...hint_tracks.txt
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