Using FMLE to get 1280 x 720?

[Mark0514]

I can send 1080i to VB w/ 1080 global, but when I start recording I go up to 75% cpu. I have to have BM convert it to 480 to stay out of the red.

Would it be possible to instead stream to a virtual device at 720, and have fmle record a flv that I could later mess with? Would that be any less resource intense? Is there any other way to use 1080i that doesnt overwork my PC? Heck, what's wrong with my PC, for that matter.

Intel® Core™ i7-2600K Processor (4x 3.40GHz/8MB L3 Cache)
Asetek 550LC Liquid CPU Cooling System
8 GB [2 GB X4] DDR3-1600 Memory
Video Card NVIDIA GeForce GTX 560 Ti - 2GB
2X BM Intensity Pro
ASUS P8P67 Deluxe -- 2x Gb LAN, 3x PCI-E 2.0 x16
Power Supply 800 Watt
1 TB HARD DRIVE -- 64M Cache, 7200 RPM, 6.0Gb/s
Optical Drive 24X Sony Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive -
Sound Card 3D Premium Surround Sound Onboard
Operating System Microsoft Windows 7 Home Premium 64-Bit
1 - Canon Vixia HF S100
1 - JVC Everio GZ HM300

[Sinc747]

1080 is i7 extreme territory.

[Mark0514]

well, so much for my sandy bridge I guess. I mean, I could overclock it but I dont really want to.

[Monoscopio]

Going 1080 requires that your machine is at perfect condition. You should install a good performance monitor that can show everything that happends at runtime so you can find all the bottlenecks. RAM, hdd, cpu and so on...

I got poor performance tryin to play 1080 video files. Showed out to be my hdd to be the bottleneck. The particular SSD I had bought was extremely quick at storing and moving small chunks. Copying a single 2gb file though took 20x longer than moving 2000 files totalling 2gb.

You could try recording uncompressed but that would put one heck of a load on your hdd. If you want so save cpu by letting fmle record a copy at 720 would require you to be streaming at the same resolution. And by doing this the whole point of going 1080 in vidblaster falls and you could just set the whole project to 720?

[Mark0514]

Hi Daniel,

Thanks for chiming in. At present, I am not streaming, just recording. I am using BM Intensity Pro cards, so I have to have the project set at what the cameras output, which is 1080(i). If I could set my global to 720, I would be happy. I just didnt know if FMLE recording a copy at 720 would be less stressful than VB recording at 1080.

[Monoscopio]

I dont have access to my machine right now, but isnt it possible to set the card to scale down to 720? Also you should be able to set your global res to 720 even if your input is 1080. Dont know how this would affect your performance...

[Mark0514]

I'm not at my machine either, but I'm positive the intensity pro doesnt cross convert 1080 to 720, it will only take it to SD Letterbox or Anamorphic.

As for the second part....I wish. So far it only works in 1080. If anyone follows this thread and gets it to work at 720 w/ 1080 input, I would sure love to know. I am pretty sure my machine will handle 720 in real time, as it's about half the size of 1080, if I'm not mistaken. I think I would be in love with VB at that point.

[Mark0514]

So far it only works in 1080. If anyone follows this thread and gets it to work at 720 w/ 1080 input, I would sure love to know.

Hey I got it working. I wont call it a complete success until I can do it again.

I fed 1080i into both black magic cards and turned downsampling off.
I set the global resolution to 1280 x 720 and played around with cam1, setting the cam res. to 1080 and setting the rate at auto and then 29.97.
I dont recall which one I ended up on.
At first I could only use cam 1, set to 1080 and it needed to be deinterlaced badly. When I tried cam 2 it would never work, I couldnt set the resolution.

Then, with a cam1 module active, I added a cam2 and set the same device and it worked, I then deleted the cam1 and had it deinterlaced.

With recording to wmv and 2 cameras set as above, my cpu usage is around 50%.

Now, yearning for more headroom, went into my settings and set them for best performance. When I did the trick of adding a cam2 and selecting the same device, VB crashed with an access violation. v 1.33.

I think I will be OK with 50%, but more testing is in order. Thanks

[Sinc747]

Keep us posted. Good work! Also, try 1.36.