[opendtv] Format Independence
- From: dan.grimes@xxxxxxxx
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 9 Nov 2005 18:21:46 -0800
In response to some of the discussion about formats, I have another
question. Why do broadcasters put out a fixed format stream when at the
production level the format is different. For instance, if Fox puts out
720@60P all the time, and the original production content is 24P, why would
the broadcaster waste bits by sending several frames of the same picture?
Why not send out 720@24P and use the 19Mb/s to send a less compressed
picture? Or how about when a 640x480@30i is sent out 720@60P? Is it a
problem with the master control switcher only switching one format, or the
server, or is the problem on the customer's end (like the monitor won't
naturally switch)? Is it simply easier that way? I would think a lot of
efficiency could be gained there.
Dan
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