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WMVT-DT Transport Steram ?

Started by techboy, Friday Jun 18, 2004, 04:14:35 PM

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techboy

Can anyone in the group explain the peculiarities in the WMVT-DT ch35  transport stream?  This is an issue for me because I'm trying to record the stream and then convert it to WM9 HD for archiving to DVD.  The PID's are 31hex video and 34hex audio, not 11 and 14 as would be expected.  The program PID decodes to program 3, not 1 and the stream is only 17 mbps, not 19.2 mbps.  It would appear that program 1 and 2 are not active, but are being allocated about 2 mbps data.  But no data is present.  All this is an issue because it really confuses the transport stream to MPEG decoder in my HD video recorder.  All other Milwaukee HD stearms ( even ch46 multi ) are formatted more traditionally.  There is no "law" that says it has to be done in a certain way, but convention has it's advantages.  BTW, if you haven't checked out WM9 HD, you might want to.  This codec produces HD video at 6 to 10 mbps, thus allowing about 2 hours of HD to fit on a single DVD.  Free software and demo's at //www.wm9hd.com
Retired Broadcast TV / Radio Engineer WTMJ. ( 35 Yrs )


techboy

Sorry.  I mis-typed the link. It should have been http://www.wmvhd.com/  I have had very impressive results with this codec.  Useing HD quality variable bit rate, compression of 4 to 1 is possible.  That means cutting 2 hours of HDTV to a DVD that can be played in any 2 gig machine with an ordinary DVD ROM drive.  HDTV on any computer, NOW.  Since you can't buy a commercial HD DVD burner, this is the only choice.  If I could just figure out what's so different about the WMVT transport stream.  There is a work around, but it requires demuxing the AC3 audio out of the stream, then cutting it back into the compressed video file.  An extra 2 steps which are unnecessary with streams from any other OTA source in Milwaukee.
Retired Broadcast TV / Radio Engineer WTMJ. ( 35 Yrs )