[Live-devel] mediaServer MP4 support

[Warren Young]

Posts to the mailing list tell me there is some unspecified problem with 
the MP4/QuickTime file format related to A/V synchronization, and this 
is given as the reason there is no MP4FileServerMediaSubsession class in 
the library yet.  (Or equivalently, an MP4FileServerDemux class, so you 
could handle MP4 the same as VOB is currently handled.)

It's become increasingly popular with the success of Apple and Android, 
and it's an ISO standard besides.  (MPEG-4 part 14, ISO 14496-14.)  This 
means there's a lot of software that can produce these files.  It's 
popping up in some very surprising places, like PowerPoint 2013.  When 
Microsoft starts releasing their grip on their own proprietary formats 
in favor of open ones, you know there's a big shift under way.

Remuxing an MP4 file into MPEG-TS is only a partial solution, for 
reasons given in my previous post.

What would it take to get MP4 support into live555MediaServer in the 
open source distribution?  I expect there's enough information in the 
existing liveMedia/QuickTime*.cpp files that I could construct the 
missing classes, but we've been trying to use the media server without 
changes.  We're not particularly interested in having a proprietary 
version just to get such features.