Road open for capturing HD movies?

[FrontierDK]

It may appear that way: http://www.blackmagic-design.com/products/intensity/techspecs/
More here: http://www.blackmagic-design.com/products/intensity/

Does any HD guru know if this truly means that one can capture movies etc. in HD?

[Guest]

Calculate the data rate and then ask if your disk subsytem can support that rate.

[Dark Shikari]

Calculate the data rate and then ask if your disk subsytem can support that rate.If you saved it as MotionJPEG you wouldn't even need RAID...

[Guest]

Did you see a real-time HD encoder specified? I didn't. I would certainly ask them beforing plunking down any bucks.

[squid_80]

Did you see a real-time HD encoder specified? I didn't. I would certainly ask them beforing plunking down any bucks.

If you look around the website a bit you'll find their 8/10-bit mjpg codec for free download.

The Intensity can't capture HDCP protected content so I'm not really sure how you'd use it to capture HD movies, unless they were movies you'd created.

[Blue_MiSfit]

Besides, can you really do realtime 1080p24 mjpeg?

[Dark Shikari]

Besides, can you really do realtime 1080p24 mjpeg?
Assuming a 2.4Ghz processor and a DCT+Huffman routine that takes less than 3086 clock cycles per 8x8 block, yes.

If I recall correctly there are DCTs that take on the order of ~20 multiplies and adds per 8x8 block, meaning they probably require only a few dozen clock cycles at most. The Huffman encoding probably doesn't take long either; that can definitely be done in realtime for 1080p.

MJPEG is surprisingly fast.

[squid_80]

Blackmagic's codec is multithreaded.