[opendtv] Re: Targeted TV Advertising Catches Interest
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 19 Oct 2004 10:06:04 -0400
At 11:05 PM -0700 10/18/04, Kon Wilms wrote:
>That's a 'very bad' idea because it means using allocating extra
>bandwidth for every channel -- so a channel's bitrate becomes the sum of
>its core bitrate and combined additional bitrates of all subchannels,
>severely crippling the amount of channels you can deliver. Statmuxing
>won't 'fix' this (there will always be a minimum bitrate for all
>subchannels that could be consumed at any time) -- let alone the issues
>you will have with continuity in doing a seamless cross-channel switch.
Good points.
>Deliver the ads via low-bitrate trickled carousel w/erasure corrected
>data reception. Tag the ads with metadata, and transmit triggers. Let
>the box filter and splice. This has all been done before, why do people
>keep going back to the ice ages...
My only question is why you would splice stuff in the compressed
domain. The STB is the Master Control switcher of the future. It
would be much better to decompress all potential streams and objects,
the put them together at baseband where you can use appropriate
switching, mixing, and keying techniques.
Let's just deliver high quality assets using good old packet data
techniques. Consumers are growing tired of surfing streams...
Regards
Craig
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