madVR - high quality video renderer (GPU assisted)

[Audionut]

The only reason for that would be madVR not using error diffusion at all and silently falling-back to ordered dithering.

It appears I am mistaken. I recall a time where the stats didn't seem to change, for any of the (enabled) dithering options.

However, upon double-checking, this is no longer the case.

[mindbomb]

if you select 6 bit madvr will dither it to 6 bit. the picture it self is still 8 bit but the first 2 bit are not used anymore. this should increase dither quality for 6 bit tn panels because madvr dither should result in better picture quality and the screen shouldn't touch the 8 bit input with the first 2 bits zero.

thanks, that's exactly what I was wondering. Full screen exclusive mode is required for this I imagine, right? cause background apps and desktop would still be 8 bit. And this works with error diffusion as well as static and ordered dithering?

[Mangix]

i have win7 64bit...
in gpu-z directcompute was there with opencl...but renders time didnot differ between order dither, random dither and error diffisuion..

you may want to update your video drivers and/or the directx runtime.

[Shiandow]

thanks, that's exactly what I was wondering. Full screen exclusive mode is required for this I imagine, right?

If it works at all then it will also work in windowed mode.

[truexfan81]

question: why is there no 64bit version of madvr? with it, we could have even larger buffers and overall performance could increase thanks to the larger registers.

I understand that you dont want to maintain both 32bit and 64bit, but with the death of windows xp, is there any reason to release a 32bit version? (talking to all users here) Most non-ancient hardware should also be capable of 64bit without any issues. Also Vista's and Win7's 32bit keys are also valid for an identical 64bit edition, so even if you bought 32bit (by accident), you can still switch to 64bit on the next install (which I recommend).
There is no reason to still use a 32bit Windows OS (unless you really want to stick with XP).

i agree, with the death of xp its time to drop the 32bit version and go to 64bit

[Ceremony]

But do we need larger RAM buffers and higher CPU perfomance?
madVR is GPU-heavy, CPU doesn't really matter there.

Reclock?
uhm, being more efficient is a great goal, isn't it? and more ram also means more vram.

and the same goes for reclock obviously: the 64bit era is already here!

[Soukyuu]

I agree the 64-Bit era is here, but you have to keep in mind transitioning from a 32-bit build to a 64-bit build might not be as trivial as saying "ok, build it in 64-Bit".

[vivan]

uhm, being more efficient is a great goal, isn't it?In perfect world maybe. But in real world +0.1% gain doesn't worth extra work when there're a lot of much better things to do.

and more ram also means more vram.and is it even possible to hit that limit?

and the same goes for reclock obviously: the 64bit era is already here!Good luck finding it's author and forcing him to rewrite it ;)

[nevcairiel]

But do we need larger RAM buffers and higher CPU perfomance?
madVR is GPU-heavy, CPU doesn't really matter there.

Software video decoders can be significantly faster on 64-bit.

H.264 in LAV Video is around 15% faster in 64-bit, and thats one codec that is well optimized for 32-bit as well.
It gets much more extreme for newer codecs like HEVC/H.265 or VP9, where many of the assembler optimizations are only written for 64-bit (mostly because its a pain to limit yourself to the low register count on 32-bit), and you can easily see a 100% performance difference because of that!

I know madshi doesn't have immediate plans for 64-bit, and while madVR wouldn't directly benefit from it either way, it is certainly not useless in the entire video playback pipeline - not anymore anyway.
DirectShow is all about flexibility, so I hope we get it one day!

[leeperry]

How do you all manage to push your gpus to the limit running it at near 100% with smooth playback? If my gtx650 gets higher than 78% madvr starts dropping frames like crazy.
I just checked in Afterburner and 720p29.97@1080p with J3AR chroma & 64x NNEDI luma goes all the way up to 92% on my R9 270 with a PCI-E 3.0 Haswell rig, all queues are full(with the 13.12 drivers).

I guess the 128bit memory controller of your 650 doesn't help, it was one of the reasons why I ultimately disregarded the 750Ti....it only gets serious starting with 192 IMHO, 256 being better of course.

BTW, the R9 270(not X) would appear to be a refreshed 7870 with a lower TDP and the TF4 MSI cooler is really as amazingly silent as promised(1K rpm double 10cm fans), I tried to drop them to 800rpm but couldn't hear any whine pitch decrease. This board should definitely fit my needs until faster Maxwell's arise and the crazy summer heat can bring the pain :devil:

[Asmodian]

uhm, being more efficient is a great goal, isn't it? and more ram also means more vram.

and the same goes for reclock obviously: the 64bit era is already here!

While I have run a 64 bit OS for at least 8 years now we should remember 32 bit is actually more efficient unless you use the extra RAM or registers. Without using them 64 bit simply uses more memory. Something like a tablet with 4GB RAM would probably run better using 32 bit.

64 bit would be great for any of my systems but it is a trade off. 64 bit isn't only better, there are downsides. And that doesn't even mention development effort.

edit: I should clarify; I would love a 64 bit madVR too, that is the only thing preventing me from even trying a 64 bit playback chain. If it doesn't play through madVR than it might as well not work. ;)

[Ceremony]

In perfect world maybe. But in real world +0.1% gain doesn't worth extra work when there're a lot of much better things to do.

and is it even possible to hit that limit?

Good luck finding it's author and forcing him to rewrite it ;)im not forcing anyone, just suggesting to jump onto the 64bit bandwagon. nor do i say its as easy as flipping a switch like that :-)

of course the performance gain wont be that big right away, but it opens up new possibilities, like compatibility with 64bit software and so on.
and just like users stated before me: lav filters benefit greatly from 64bit optimization and i believe, while i know nothing of value when it comes to developing madvr, that madvr can benefit from it too.

hitting the limit should be possible with unreasonably large buffer/queues OR simply 4k content. plus afaik, vram and ram address space is shared, so both combined, you can hit the 4GB earlier than one would expect. and if you use additional filters and tools such as avisynth, SVP, etc you'll come to hate that 4GB limit.

on a totally unrelated note: having a more flexible backbuffer and queue size would be nice. like defining the length of a second of the movie to be buffered. so for 60fps content it would mean queuing 60 pictures, 24p content just 24 pictures.

[XMonarchY]

Could someone remind me what I should prioritize when watching sub-1080p content that I want doubled/quadrupled - NNEDI3 chroma upscaling or NNEDI 3 image doubling? I remember that for image doubling, Luma makes the most difference. I don't remember whether I should try to set a higher value for NNEDI3 chroma upscaling or NNEDI3 luma doubling/quadrupling?

[QBhd]

Could someone remind me what I should prioritize when watching sub-1080p content that I want doubled/quadrupled - NNEDI3 chroma upscaling or NNEDI 3 image doubling? I remember that for image doubling, Luma makes the most difference. I don't remember whether I should try to set a higher value for NNEDI3 chroma upscaling or NNEDI3 luma doubling/quadrupling?

your best bet is to try each on it's own, see which has the most "Wow that's awesome"... rank them and then see what your GPU can afford to do... that's what I do. Everyone's setup is different, so one person's recommendation can be very different from another's.

Also don't forget to use profiles for each different type of content you are watching

QB

[XMonarchY]

Yeah I guess. My GTX 780 Ti can't handle settings as high as my friend's R9 290, so I have to sacrifice some things. I can manage value of 64 for chroma upscaler, luma doubling, and luma quadrupling. I am not sure if going any further than that will create a visible difference.

Also - how is madVR doing these days? There was much hype about all the new features not so long ago. Is anything new planned that will improve video quality further???

[Asmodian]

Yeah I guess. My GTX 780 Ti can't handle settings as high as my friend's R9 290, so I have to sacrifice some things. I can manage value of 64 for chroma upscaler, luma doubling, and luma quadrupling. I am not sure if going any further than that will create a visible difference.

I notice better quality with low res material using luma doubling 128/256 and turning off luma quadrupling. I also cannot tell the difference between 32 and 64N chroma upscaler, I only go up to 64N if I have room and cannot turn up luma doubling anymore. Only if I am at 256 luma doubling and 32+ chroma scaling and still have performance to spare do I turn on luma quadrupling. Quadrupling takes a lot of power for little improvement, similar to chroma doubling.

Also - how is madVR doing these days? There was much hype about all the new features not so long ago. Is anything new planned that will improve video quality further???

Do not bother asking, madshi will let us know when he feels like it. Coding >> progress updates. I understand there is paid work taking more of his time at the moment. ;)

[StinDaWg]

I just checked in Afterburner and 720p29.97@1080p with J3AR chroma & 64x NNEDI luma goes all the way up to 92% on my R9 270 with a PCI-E 3.0 Haswell rig, all queues are full(with the 13.12 drivers).

I guess the 128bit memory controller of your 650 doesn't help, it was one of the reasons why I ultimately disregarded the 750Ti....it only gets serious starting with 192 IMHO, 256 being better of course.

BTW, the R9 270(not X) would appear to be a refreshed 7870 with a lower TDP and the TF4 MSI cooler is really as amazingly silent as promised(1K rpm double 10cm fans), I tried to drop them to 800rpm but couldn't hear any whine pitch decrease. This board should definitely fit my needs until faster Maxwell's arise and the crazy summer heat can bring the pain :devil:
Is this the card you have? I've seen it go as low as $160.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127769

I've been looking at that model because of how quiet the reviews say it is. Seems a lot of people are having problems with the fans dying though. What kind of NNEDI3 settings are you able to get out of 720p60 content? My overclocked (1050 core) 7850 can do 16 neurons, just barely (15ms rendering time).

[Andy o]

Reclock?

Also bear in mind that the only way to decode DTS-HD is through a 32-bit chain.

[Ceremony]

Also bear in mind that the only way to decode DTS-HD is through a 32-bit chain.acceptable to me. im fine with the dts core. cant hear the difference anyway^^

[leeperry]

Quadrupling takes a lot of power for little improvement
Which makes me realize that I have never used quad luma :sly:

I'm still thoroughly impressed by 64x chroma + 256x luma on crisp 576x320p25 content, I guess I might try 64x quad luma or so.

[kolak]

Does anyone know if I can get 10bit pipe from madvr to Intel Iris 5200 PRO (and further to monitor over DisplayPort)?

[nevcairiel]

Does anyone know if I can get 10bit pipe from madvr to Intel Iris 5200 PRO (and further to monitor over DisplayPort)?

You cannot. madVR only does 8-bit output for now.

[kolak]

Ups- I thought it can do 10bit. Shame, but it looks like Iris won't do it anyway.
So it means there is no way to pass 10bit video over Display Port or HDMI through some player at all?

[6233638]

Ups- I thought it can do 10bit. Shame, but it looks like Iris won't do it anyway.
So it means there is no way to pass 10bit video over Display Port or HDMI through some player at all?It's apparently possible via DirectX 11 but I'm not aware of anything which uses this.

[yok833]

@ Madshi
No news = good news ????? :)

Envoyé de mon GT-I9300 en utilisant Tapatalk

[James Freeman]

It's apparently possible via DirectX 11 but I'm not aware of anything which uses this.

Its false.
Only NVIDIA Quadro & ATI FirePro can output 10-bit.

No news = good news ?????
Let's hope so.
Long time not heard from madshi.

Although he truly deserves a long vacation.

[Asmodian]

Its false.
Only NVIDIA Quadro & ATI FirePro can output 10-bit.


How many times do we need to go over this? That is for OpenGL only!

http://nvidia.custhelp.com/app/answers/detail/a_id/3011/~/10-bit-per-color-support-on-nvidia-geforce-gpus

[leeperry]

Oh, kinda late to the party but quad NNEDI is double NNEDI basically? On 576x320p25, is that wiser for luma to do 256x double only, 256x double + 32x quad or 128 double + 64x quad? I guess I'll have to put my eagle eye glasses on and run comparisons with fresh eyes

PS: Humm, I think 256+32 looks sharper, yay! Wish I could do 256+64 :D

[Thunderbolt8]

Let's hope so.
Long time not heard from madshi.

Although he truly deserves a long vacation.hes propably working on his commercial products.

it has always been like that, there are times when he is quite active with these tools and then also those times in which he has to focus on something else and we dont hear that much & theres not much progress during that time. just wait for that phase to end and there will probably more communication & improvements again.

[Asmodian]

Oh, kinda late to the party but quad NNEDI is double NNEDI basically?

Yes, Quad just means run NNEDI3 again on the output from the doubling.

PS: Humm, I think 256+32 looks sharper, yay! Wish I could do 256+64 :D

Aha! Thanks, it always good to get my impressions reinforced. ;)

[Guest]

This is madshi's support thread for MadVR. OT posts have been removed yet again. Strikes may follow.

[Danne S]

Is there any reason to use chroma double on SD content? Or is it just waste of resources?

On luma double, is there any significant improvement when going from 128 to 256 on SD content?

Skickat från min GT-N7000 via Tapatalk

[michkrol]

Is there any reason to use chroma double on SD content? Or is it just waste of resources?
Hard to say, you'll see more of a difference (if any) with NNEDI for chroma upscaling (instead of other algorithms). It depends greatly on content.
As for wasting resources, I think it's a waste if you can't see the difference even if there is a difference, so in the end trust what you can see.
On luma double, is there any significant improvement when going from 128 to 256 on SD content?
I stop seeing difference going from 64 to 128 neurons with most content I've tested, sometimes even 32 and 64 looks the same to me, but that's just me, you need to check it for yourself.
When I was tweaking my settings I opted for lower neurons count to get cooler and quieter GPU and I can't see the difference even when pausing, not to mention actually watching videos.

All of this might be caused by my not-so-expensive display, so take it with a grain of salt and test everything for yourself, since others are getting quite different results - read the posts a few pages back.

[Ceremony]

Its false.
Only NVIDIA Quadro & ATI FirePro can output 10-bit.afaik, you can get that on regular nvidia cards as well with modified drivers :)

same might be possible on ATI/AMD :)

I stop seeing difference going from 64 to 128 neurons with most content I've tested, sometimes even 32 and 64 looks the same to me, but that's just me, you need to check it for yourself.actually, the gain for SD anime is quite dramatic. especially if they come with hardsubs. kinda wish my card were powerful enough to do the full 256 neurons ^^

for regular shows (live action), 32-64 neurons are plenty in my book :)

[Asmodian]

afaik, you can get that on regular nvidia cards as well with modified drivers :)

same might be possible on ATI/AMD :)

You do not even need modified drivers, madVR would simply need to use dx11 instead of dx9. The modified drivers would be for OpenGL which I don't see madVR ever using. Both Nvidia and AMD consumer cards support 10 bit output via D3D DX11. Sadly currently all the software which supports 10 bit output uses OpenGL.

madVR could be the first application to support 10 bit output via D3D. ;)

[leeperry]

Humm, I'm having very random artifacts problems when using NNEDI chroma with the 13.12 drivers and the R9 270....It happened twice in 4 days, I initially assumed that uninstalling Afterburner fixed it but I can now fairly easily reproduce it.

I did try older build of mVR and both interop hacks so I don't really know wth is up :o

One thing I know is that the artifacts blink very slowly even when mVR is paused and they disappear as soon as I leave FSE. Maybe my MSI board is a dud after all but it really seems linked to NNEDI chroma(switching to J3AR would appear to fix it) and the artifacts do looks like giant pixels when upscaling 576*320 to 1080p:

http://thumbnails110.imagebam.com/32860/c87d51328591863.jpg (http://www.imagebam.com/image/c87d51328591863) http://thumbnails111.imagebam.com/32860/27e5ae328591865.jpg (http://www.imagebam.com/image/27e5ae328591865) http://thumbnails111.imagebam.com/32860/0ab8aa328591866.jpg (http://www.imagebam.com/image/0ab8aa328591866) http://thumbnails109.imagebam.com/32860/aaea34328591867.jpg (http://www.imagebam.com/image/aaea34328591867)

http://thumbnails110.imagebam.com/32860/573ff9328591868.jpg (http://www.imagebam.com/image/573ff9328591868) http://thumbnails111.imagebam.com/32860/032eb0328591869.jpg (http://www.imagebam.com/image/032eb0328591869)

They would seem to always appear in the very same location depending on the resolution of the movie files.

That never happened with the HD7850, maybe I would need to upgrade to 14.4 but these are a no-go with mVR due to the very high interop lag...Oh well I give up, I'm gonna pimp my HD7850 with high grade TIM and a giant slow fan sandwiched onto it, that should do the trick until we can get faster Maxwell's....and I hate how they hardlocked the fans of the MSI to 1K rpm when idle anyway, I want one of those semi-passive Asus (http://thepcenthusiast.com/asus-geforce-gtx-780-strix-oc-6gb-gddr5-edition/) now :D

[Xaurus]

Guys, if I were to change my GTX 660 for anything stronger for madvr, what is considered the best bang-for-the-buck now?

[MysteryX]

Ever since upgrading to Windows 8.1, I'm clearly having lower performance with SVP+madVR. With the same settings, it lags so badly on some videos that the audio and video get out of sync. I was playing perfectly fine in Windows 8.

I have a Radeon 7600M and tried different versions of the 14.4 drivers: Leshcat's drivers, AMD drivers and LeeKM's drivers.

Leshcat and AMD drivers were causing much lower performance on 1080p TV output, and LeeKM's version seems to be doing a little bit better, where sometimes it plays fine, sometimes it lags.

Any idea what's going on here?

[turbojet]

Potplayer has DX11 D3D output, not sure if it's 10 bit. How to check?

[nevcairiel]

Any idea what's going on here?

Don't use 14.4 at all, no version of it, its much slower than previous drivers.

[huhn]

Humm, I'm having very random artifacts problems when using NNEDI chroma with the 13.12 drivers and the R9 270....It happened twice in 4 days, I initially assumed that installing Afterburner fixed it but I can now fairly easily reproduce it.

I did try older build of mVR and both interop hacks so I don't really know wth is up :o

One thing I know is that the artifacts blink very slowly even when mVR is paused and they disappear as soon as I leave FSE. Maybe my MSI board is a dud after all but it really seems linked to NNEDI chroma(switching to J3AR would appear to fix it) and the artifacts do looks like giant pixels when upscaling 576*320 to 1080p:

http://thumbnails110.imagebam.com/32860/c87d51328591863.jpg (http://www.imagebam.com/image/c87d51328591863) http://thumbnails111.imagebam.com/32860/27e5ae328591865.jpg (http://www.imagebam.com/image/27e5ae328591865) http://thumbnails111.imagebam.com/32860/0ab8aa328591866.jpg (http://www.imagebam.com/image/0ab8aa328591866) http://thumbnails109.imagebam.com/32860/aaea34328591867.jpg (http://www.imagebam.com/image/aaea34328591867)

http://thumbnails110.imagebam.com/32860/573ff9328591868.jpg (http://www.imagebam.com/image/573ff9328591868) http://thumbnails111.imagebam.com/32860/032eb0328591869.jpg (http://www.imagebam.com/image/032eb0328591869)

They would seem to always appear in the very same location depending on the resolution of the movie files.

That never happened with the HD7850, maybe I would need to upgrade to 14.4 but these are a no-go with mVR due to the very high interop lag...Oh well I give up, I'm gonna pimp my HD7850 with high grade TIM and a giant slow fan sandwiched onto it, that should do the trick until we can get faster Maxwell's....and I hate how they hardlocked the fans of the MSI to 1K rpm when idle anyway, I want one of those semi-passive Asus (http://thepcenthusiast.com/asus-geforce-gtx-780-strix-oc-6gb-gddr5-edition/) now :D

do you have a sample of that scene if have a r9 270 too. maybe there is a bug in the nnedi implementation?

[Ver Greeneyes]

I have a Radeon 7600M and tried different versions of the 14.4 drivers: Leshcat's drivers, AMD drivers and LeeKM's drivers.
Don't use 14.4 at all, no version of it, its much slower than previous drivers.
There have also been many reports of BSODs related to Flash and Firefox's Direct2D-based hardware acceleration implementation (to the point where they are currently blacklisted for Nightly builds of Firefox) - these drivers are bad news. I suggest going back to 13.12.

[cyberbeing]

maybe there is a bug in the nnedi implementation?

Somewhat doubtful, since it looks like the corruption which AMD users have been reporting for awhile with other (http://i60.tinypic.com/2ut2qvd.jpg) applications (http://img69.imageshack.us/img69/3079/ff19pixelfehler.jpg) like Firefox (https://bugzilla.mozilla.org/show_bug.cgi?id=837489). Some people even say the issue only occurs for them under heavy compute load (OpenCL, Mining, Folding@Home, etc). Normally I would think issue such as this would be caused by mildly unstable GPU silicon, but maybe the AMD drivers themselves randomly trigger corruption under heavy load.

[Ceremony]

Somewhat doubtful, since it looks like the corruption which AMD users have been reporting for awhile with other (http://i60.tinypic.com/2ut2qvd.jpg) applications (http://img69.imageshack.us/img69/3079/ff19pixelfehler.jpg) like Firefox (https://bugzilla.mozilla.org/show_bug.cgi?id=837489). Some people even say the issue only occurs for them under heavy compute load (OpenCL, Mining, Folding@Home, etc). Normally I would think issue such as this would be caused by mildly unstable GPU silicon, but maybe the AMD drivers themselves randomly trigger corruption under heavy load.also, only some GPUs are affected, not all:
I am running the 14.4 drivers without any issues (using the iGPU of the A10-7850K)!

[MysteryX]

How does madVR work with Windows' "Change the size of all items" feature, such as when display is 120% bigger on 1080p TV?

When I tried it, video quality seemed lower, and performance seemed higher than it should be.

It seems like madVR is processing at a lower resolution, and Windows is then re-scaling the output.

Can anyone confirm that?

[DragonQ]

I doubt MadVR has anything to do with Windows scaling. Your video player might do though. Presumably you need to disable high DPI scaling in the Compatibility tab of your video player's EXE.

[leeperry]

Somewhat doubtful, since it looks like the corruption which AMD users have been reporting for awhile with other (http://i60.tinypic.com/2ut2qvd.jpg) applications (http://img69.imageshack.us/img69/3079/ff19pixelfehler.jpg) like Firefox (https://bugzilla.mozilla.org/show_bug.cgi?id=837489). Some people even say the issue only occurs for them under heavy compute load (OpenCL, Mining, Folding@Home, etc). Normally I would think issue such as this would be caused by mildly unstable GPU silicon, but maybe the AMD drivers themselves randomly trigger corruption under heavy load.
Oh, you nail it! :eek: GPU load was in the +90% region and the artifacts disappeared as soon as I went from FSE to 960x540 windowed.

It doesn't seem to be related to NNEDI per se as it still happened with mVR paused.

I'm sending it back as DOA and tbh I've been a little traumatized by those random artifacts, I kinda fear they'd come back on my good ole HD7850 ^^ This was my last AMD board fosho and I wouldn't advise any mVR user to buy a R9 board without a proper cooling-off period :mad:

do you have a sample of that scene if have a r9 270 too.
It's a little complicated because I had a truckload of 576x320 files in the same folder and in order to reproduce easily I had to open them all simultaneously in PotPlayer using its seamless playback feature and then skip a few times between two of them.

Load your board in the +90% region using 32x double chroma & 256+32 quad luma with ED1 on SD files and see where that gets you?

FWIW its ASIC quality rating in GPU-Z was 76%.

I'll try to reproduce on the HD7850 but it clearly can't take such a high load and I've been using it without any problem for +4 months now, it's pointless to allow so much GPGPU computing if it shall output garbage randomly :rolleyes:

[Andy o]

How does madVR work with Windows' "Change the size of all items" feature, such as when display is 120% bigger on 1080p TV?

When I tried it, video quality seemed lower, and performance seemed higher than it should be.

It seems like madVR is processing at a lower resolution, and Windows is then re-scaling the output.

Can anyone confirm that?

You can try a 1:1 pixel test pattern. FWIW I did a while ago and it's not scaling here. Win 8.1, AMD 7790.

[StinDaWg]

I doubt MadVR has anything to do with Windows scaling. Your video player might do though. Presumably you need to disable high DPI scaling in the Compatibility tab of your video player's EXE.
I don't think so. I'm using 150 DPI and madVR looks fine on my 1080p tv.

[mzso]

question: why is there no 64bit version of madvr? with it, we could have even larger buffers and overall performance could increase thanks to the larger registers.

I understand that you dont want to maintain both 32bit and 64bit, but with the death of windows xp, is there any reason to release a 32bit version? (talking to all users here)

Most non-ancient hardware should also be capable of 64bit without any issues. Also Vista's and Win7's 32bit keys are also valid for an identical 64bit edition, so even if you bought 32bit (by accident), you can still switch to 64bit on the next install (which I recommend).
There is no reason to still use a 32bit Windows OS (unless you really want to stick with XP).

To me pretty much madVR is the only thing in the chain, that doesn't have a 64 bit variant. (Maybe also LAV in the case of DTSHD-MA. It can't load the Arcsoft decoder which is 32bit if I remember correctly)
Also someone mentioned ffmpeg stuff being optimized only for x64, I think it was the VP9 decoder.

Good luck finding it's author and forcing him to rewrite it ;)

I fail to see any particular need for reclock.