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 ?
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 (http://svn.gnumonks.org/trunk/21c3-video/cutting_tagging/tools/mpeg4ip-1.2/doc/about_hint_tracks.txt)