The CATV/IPTV aren't going to have to worry about this. They'll unicast off of routers located local to the service recipient. They aren't going to be able to do planet wide HDTV broadcasts by multicasting.
So, well they could use 20 megabits if they felt like it. I think the HDTV cable around here must be doing something like that because it's encoded in MPEG2.
By being able to use unicasting, a feed can be brought into a neighborhood with one stream and then relayed to all of the service recipients.
We aren't gonna get that toy.
Originally posted by yeshuawatso
Although codecs are getting better
Codecs don't really matter. "Better" codecs mean that they hide errors better. The only way to xmit quality video is to have the bandwidth. Codecs don't give us any new miracles.
Considering in 4 years, I've gone from 768k DSL to 15 megabit fiber, maybe we will have the bandwidth.
I have been using a new encoding profile, not based on wishful thinking. At 400k, I found that optimal was 256X192 @19fps.
For any of theses codecs, that's gonna be in the ball park.
Artifacting is the ugliest thing in a video I think. I had to drop the resolution and frame rate down to these values to eliminate it.
I think you'd find that VP6 and H264 act almost the same as the mpeg4 variant I am using. (wmv2 which is basically microsoft flavored mpeg4). VP6/H264 might "look" better, but in truth you are hiding artifacting, not eliminating it.