| reply to FBGuy
Re: the report defines an HD stream as 2 Mbps said by FBGuy:I'd be curious to see what a real HD stream would use.
It depends on the codec and compression.
19MBps is the maximum that broadcast HDTV can use and they use a less efficient codec (MPEG2). Blu-ray Disc (BD) can use more than that. Streaming tends to use less because of home internet connections typically being lower bandwidth. It is a chicken and egg scenario. |
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 FBGuyPremium
join:2005-03-19
Evanston, IL | I don't consider something with compression as HD |
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 gjrhine
join:2001-12-12
Pawleys Island, SC | Even all HD is compressed. |
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BobAccount deleted
join:2012-07-22
New Jersey | Uncompressed would be 1200 Mbps (1.2 Gbps). So all HD is compressed. |
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 mgraves1Premium
join:2004-04-05
Houston, TX
 ·Junction Networks
| said by Bob:Uncompressed would be 1200 Mbps (1.2 Gbps). So all HD is compressed.
Actually, SMPTE 292M specifies 1.485 Gbps as the nominal data rate for uncompressed HD.
It gets confusing in transmission because the channel usually receives several streams multiplexed together, often at least 1 HD and 1-2 SD streams, into that bandwidth.
Uncompressed HD video is very pretty, but not often seen in the wild.
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Michael Graves
Houston TX
»www.mgraves.org |
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 Anonymous_AnonymousPremium
join:2004-06-21
127.0.0.1
kudos:2
 ·RoadRunner Cable
| reply to fifty nine
said by fifty nine:said by FBGuy:I'd be curious to see what a real HD stream would use.
It depends on the codec and compression. 19MBps is the maximum that broadcast HDTV can use and they use a less efficient codec (MPEG2). Blu-ray Disc (BD) can use more than that. Streaming tends to use less because of home internet connections typically being lower bandwidth. It is a chicken and egg scenario. I am sure he wanted to know the uncompressed rate
10-bit Uncompressed HD - 1080i at 59.94 fps 155 MB/s
10-bit Uncompressed HD - 1080p at 23.98 fps 125 MB/s
source
»www.matrox.com/video/en/support/···storage/
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Well, does your car at least turn into something else? Sometimes I turn it into a trashcan. Hmm... |
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