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MediaPortal 1
MediaPortal 1 Talk
Multiple HDTV over network, bandwidth needed?
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<blockquote data-quote="Frodo" data-source="post: 104816" data-attributes="member: 10277"><p>First of all, it depends on the (hdtv) channel. The broadcaster is more or less free to choose the bitrate it wants to use for a tv channel. This means some channels are 2-3 Mbits/sec while others are 8Mbits/sec</p><p></p><p>Now about DVB-S2 H2.64</p><p>One one hand, HDTV requires a lot more bandwidth because of the higher resolution. On the other hand, much of this is compensated because H.264 compresses much better then good old mpeg-2 and because of the new modulation methods in DVB-S2.</p><p>The authors claim that a H2.64 service now takes up about the same bandwidth as a normal DVB mpeg-2 SDTV channel.</p><p></p><p>In the end this means that HDTV H2.64 wont use much more bandwidth on the LAN then a normal mpeg-2 SDTV channel. </p><p></p><p>On the client however its different. H2.64 decoding requires a LOT of cpu and gpu power. So much in fact that at the moment I dont think there is a pc yet which can perfectly display 1080p H2.64 tv.</p></blockquote><p></p>
[QUOTE="Frodo, post: 104816, member: 10277"] First of all, it depends on the (hdtv) channel. The broadcaster is more or less free to choose the bitrate it wants to use for a tv channel. This means some channels are 2-3 Mbits/sec while others are 8Mbits/sec Now about DVB-S2 H2.64 One one hand, HDTV requires a lot more bandwidth because of the higher resolution. On the other hand, much of this is compensated because H.264 compresses much better then good old mpeg-2 and because of the new modulation methods in DVB-S2. The authors claim that a H2.64 service now takes up about the same bandwidth as a normal DVB mpeg-2 SDTV channel. In the end this means that HDTV H2.64 wont use much more bandwidth on the LAN then a normal mpeg-2 SDTV channel. On the client however its different. H2.64 decoding requires a LOT of cpu and gpu power. So much in fact that at the moment I dont think there is a pc yet which can perfectly display 1080p H2.64 tv. [/QUOTE]
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MediaPortal 1
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Multiple HDTV over network, bandwidth needed?
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