Replies – Forums – Matt Catalano

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Matt Catalano
November 8, 2012 at 7:08 pm in reply to: Recommendation for Video card / device / computer for High Quality Stream

I was referring to the USB h.264 compressed stream as you assumed. The uncompressed SDI/HDMI program output would probably require some even heavier hardware to capture and re-encode.
Matt Catalano
October 26, 2012 at 9:36 pm in reply to: Recommendation for Video card / device / computer for High Quality Stream

Yes I was actually. I just ran a webcast and the newest Macbook Pro with 4 cores (I forget the GHz) was able to handle high quality and HD. We unfortunately had to switch to a slightly older Macbook Pro 4 core machine made earlier in 2012 with less memory and GHz and it did not survive in HD for very long.

Check out the quality of our feed here but please note that the only cameras that were HD direcly into the Blackmagic were the static wide angle shots and the host shots. The action shots we’re all re-broadcasted from slower machines.

https://new.livestream.com/OceanPaddlerLive/events/1589895
Matt Catalano
August 16, 2012 at 9:58 pm in reply to: Recommendation for Video card / device / computer for High Quality Stream

Andreas,

Thank you for the tips. I wasn’t aware that the SDI program output from the TVS was uncompressed. I wonder if the HDMI program output is also uncompressed? Assuming only the SDI.

You are also correct in the fact that Livestream does need to take the h.264 feed and re-encode it to new streams. In many cases it wants to re-encode to 2 or 3 separate streams (one high quality or HD, one medium quality, and one mobile quality). I’m sure that takes a lot of CPU to handle.

I would be happy with just one feed through Livestream (just the high quality, not even HD) but it doesn’t seem to give me that option.

Thanks again,
Matt
Matt Catalano
May 15, 2012 at 1:42 am in reply to: Video Sources NTSC 1080i vs 480p vs 480i on the ATEM TV Studio

I’m going to start answering my own question as I now have the ATEM TV studio on hand.

My Macbook Pro 15″ from late 2010 is successfully displaying in MultiView in 1080i, 720p and 480i modes. The 480i mode did not work right away. I had to switch video modes on the ATEM and on the Macbook a few times between PAL and NTSC and between 1080, 720, 576 and 480 to get it to show up.. almost as if it didn’t like displaying 480i after having 1080i? I also swapped out my Monoprice.com Mini Display Port to HDMI adapter for a new one from Monoprice.com that is a HDMI, DVI, and DisplayPort (3 in 1) combined adapter.

I cannot get the 5D Mark II to display its screen yet. Obviously it is not a clean feed but I’m looking into the Magic Lantern firmware update to see if there is a way.