[vls-devel] AC-3 in ATSC/DVB transport streams

Toby Jaffey toby at earth.li
Fri Apr 4 13:56:17 CEST 2003


Hi,

I'm using VLS 0.4.0 to multicast data from DVDs out to an ethernet
set-top-box. I find that with MPEG audio tracks, there is no problem.
However, with AC-3 audio, DVDs seem to contain an extra 4 bytes at the
start of each PES packet.

My understanding is that in DVB/ATSC compliant transport streams with
AC-3 audio, these 4 bytes are not present and that this header is only
found on DVDs.

Would it be possible for VLS to strip these out?

-- 
 ()=  | Toby Jaffey : pkl.net/~trj
//\   | 2 + 2 = 5 for extremely large values of 2.                           
v_/_  |                                                                      
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