LAV Filters - DirectShow Media Splitter and Decoders

[nevcairiel]

Originally Posted by andyvt

Just had to comment out some code in LAV, FWIW the ArcSoft TMT filter works too.

I should try to make auto-detection work, but its not like there is alot of content available.

[andyvt]

Originally Posted by nevcairiel

I should try to make auto-detection work, but its not like there is alot of content available.

It's an academic problem right now. Only really useful for reviewers

[NikosD]

Originally Posted by andyvt

Yep, it's going to be a while before there are consumer 4K displays.

Nevcariel wasn't talking about 4K displays.
He was talking about motherboard limitation of HDMI on Ivy Bridge motherboards.

Nevcariel or someone else, can you post DXVA benchmarks of 4K clips ?

Also what is the QuickSync utilization of 4K clips during normal playback ?
You can use Intels Performance monitor to see that.

What are the benchmark figures of QuickSync 2.0 (Ivy Bridge), using my H.264 video collection ?

Thanks!

[andyvt]

Originally Posted by NikosD

Nevcariel wasn't talking about 4K displays.
He was talking about motherboard limitation of HDMI on Ivy Bridge motherboards.

How useful is that feature when it's not possible to buy an HDMI displays capable of that resolution? Until that changes, this is an academic annoyance (which is why I addressed what I did).

[jakmal]

Originally Posted by andyvt

It's an academic problem right now. Only really useful for reviewers

And people in the industry I have seen some people try to play 4K in VLC on a 4 x Eyefinity setup!

[jakmal]

Originally Posted by andyvt

How useful is that feature when it's not possible to buy an HDMI displays capable of that resolution? Until that changes, this is an academic annoyance (which is why I addressed what I did).

Andrew, There is at least one 4K projector available for consumer purchase, the Sony VPL-VW1000ES. I am quite confident that with the Sharp announcement, they will become as common next year as the 2560 x 1600 monitors are right now.

[nevcairiel]

More importantly, Intel needs to finally address the bug that doesn't reliably let you configure Full Range RGB over HDMI. They have a switch for it, but it doesn't do anything, and it resets on reboots or resolution changes ... very annoying.

[jakmal]

Originally Posted by nevcairiel

More importantly, Intel needs to finally address the bug that doesn't reliably let you configure Full Range RGB over HDMI. They have a switch for it, but it doesn't do anything, and it resets on reboots or resolution changes ... very annoying.

Btw, where exactly in the control panel is this setting?

[nevcairiel]

Originally Posted by jakmal

Btw, where exactly in the control panel is this setting?

Display -> Monitor / TV Settings. "Quantization Range"

It only shows up when you actually have a HDMI connection (or DVI->HDMI Adapter), it always gives you full range on pure DVI connections to a PC monitor.

You can trick it into using full-range RGB by creating some custom resolutions, but for some reason its being stupid about it for me, and doesn't accept a bunch of resolutions.
If i don't find a solution, i'll put my old GPU back in there, wrong black levels are a deal breaker. NVIDIA should hurry with their 600 series mid-end/low-end cards, i would get one.

[jakmal]

Originally Posted by nevcairiel

Display -> Monitor / TV Settings. "Quantization Range"

It only shows up when you actually have a HDMI connection (or DVI->HDMI Adapter), it always gives you full range on pure DVI connections to a PC monitor.

You can trick it into using full-range RGB by creating some custom resolutions, but for some reason its being stupid about it for me, and doesn't accept a bunch of resolutions.
If i don't find a solution, i'll put my old GPU back in there, wrong black levels are a deal breaker. NVIDIA should hurry with their 600 series mid-end/low-end cards, i would get one.

Couple of related questions:

1. Are you able to drive 1080p50 through HDMI using the IVB system ?

2. Is chroma upsampling working well with the latest NV drivers on the Fermi cards ?

[andyvt]

Originally Posted by jakmal

Andrew, There is at least one 4K projector available for consumer purchase, the Sony VPL-VW1000ES. I am quite confident that with the Sharp announcement, they will become as common next year as the 2560 x 1600 monitors are right now.

You know that's $25K?

IVB (and SNB IIRC) support 2560 x 1600 over DisplayPort, which most high res monitors also provide. You might even be able to use a DP->HDMI adapter in the scenario where it doesn't.

[nevcairiel]

Originally Posted by jakmal

1. Are you able to drive 1080p50 through HDMI using the IVB system ?

Short of the wrong black levels, yes all the resolutions seem to be working.

Originally Posted by jakmal

2. Is chroma upsampling working well with the latest NV drivers on the Fermi cards ?

As good as the default algorithms can be expected to work, so i guess thats a yes. I think you're confusing AMD with NVIDIA here, i don't think i ever saw chroma issues on a NVIDIA card.

[andyvt]

Originally Posted by nevcairiel

More importantly, Intel needs to finally address the bug that doesn't reliably let you configure Full Range RGB over HDMI. They have a switch for it, but it doesn't do anything, and it resets on reboots or resolution changes ... very annoying.

This issue has been raised and an RCR created. They haven't provided a timeline for changing the behavior (the current implementation is by design), but it is in the system.

[jakmal]

Originally Posted by andyvt

You know that's $25K?

Yes, I have 'access' to one Most of the industry is developing 4K capable gear with that unit as the HDMI sink.. Outside of the home, I see there is a lot of demand for reliable 4K decode and display. A couple of weeks back, I set up a configuration with an AMD A8-3850 doing software decode (avcodec) of a 4K clip and outputting it over a 7750's HDMI port to that projector.

[CruNcher]

Originally Posted by andyvt

IVB supports HWA 4K decoding (although oddly the QS decoder doesn't - not sure why) via DXVA2.



Just had to comment out some code in LAV, FWIW the ArcSoft TMT filter works too.

nice tests andyvt

liked especialy this one

http://www.missingremote.com/sites/d...dbraketime.jpg

http://www.missingremote.com/sites/d...brakepower.jpg

finally someone who compares this

It was quiete anyoying all the time seeing reviewers show time or fps and then you had only the compare with some artificial power outputs from prime or Game runs totally useless :P

[andyvt]

Originally Posted by CruNcher

nice tests andyvt

...

It was quiete anyoying all the time seeing reviewers show time or fps and then you had only the compare with some artificial power outputs from prime or Game runs totally useless :P

Thanks

[andyvt]

Originally Posted by jakmal

Yes, I have 'access' to one Most of the industry is developing 4K capable gear with that unit as the HDMI sink.. Outside of the home, I see there is a lot of demand for reliable 4K decode and display. A couple of weeks back, I set up a configuration with an AMD A8-3850 doing software decode (avcodec) of a 4K clip and outputting it over a 7750's HDMI port to that projector.

I don't mean to say that it isn't an important feature, just that it's so niche that it's mostly academic. When I can buy a 75-80" 4K PDP for $5K, then it will be a major, blocking, earth stopping problem

[CruNcher]

As we can see the Core i7-3770K is the clear winner in the time taken to convert the thirty minute 480i

Is this the same Video you used later on with MediaConverter also ?

if yes excellent (not like other reviewers who change the files from one Software to the next jeez)

[andyvt]

Originally Posted by CruNcher

Is this the same Video you used later on with MediaConverter also ?

Yep. Same file.

[DragonQ]

Originally Posted by nevcairiel

Display -> Monitor / TV Settings. "Quantization Range"

It only shows up when you actually have a HDMI connection (or DVI->HDMI Adapter), it always gives you full range on pure DVI connections to a PC monitor.

That setting works on my Core i5-430M. Always defaults to TV levels when I plug it into my mum's TV but I need to change it to PC levels to avoid black crush. It does introduce video noise though, which sucks.