[mythtvnz] mpeg2 TS demux, TS -> PS

[Steven Ellis]

Michael Dilger wrote:
> Our DVB-T cards dump MPEG TS streams.   Most MPEG2/4 software expects to 
> deal with Program Streams (PS) not Transport Streams (TS).
>
> I have tried to do TS to PS conversion using ts2ps (dvb-mpegtools), but 
> it fails to work properly.   I have also tried using mencoder to just 
> copy the streams (-oac copy -ovc copy) of identified PIDs (-aid $APID 
> -vid $VPID) but it also fails to work properly.   Both of these tools 
> work fine on most sources, but fail when they encounter the audio 
> streams in NZ DTT (LATM HE-AAC).
>
> So I forged ahead, studied the 174 page standard, and wrote a simple 
> little tool to analyze an MPEG2 TS, synchronize, and collect stats on 
> the 188-byte packets.   It is just a few steps away from being a 
> demuxer, and then a few more steps from being able to translate a 
> Transport Stream (TS) into a Program Stream (PS).
>
> Since I did this for fun and have no immediate need for it, it's sitting 
> idle and unfinished.   But if anyone is interested, let me know and I'll 
> see if I can finish it.
>
>   
ProjectX works well on the DTH streams, but I haven't tried it on the
DTT samples yet.

Steve

-- 
Steven Ellis - Technical Director
OpenMedia Limited
email   - steven at openmedia.co.nz
website - http://www.openmedia.co.nz