Nvidia GeForce GTX 460(GF104 GPU) supports full audio bitstreaming - Page 51

Thanks for the explanation. I guess for my use with MPC HC it is used solely for mkv playback and I have never had a need to tweak any of the settings in MPC (aside from adding ffdshow audio), so that is where I am trying to see what benefit I would have gain with LAVF in my case. The only issue I have had with MPC HC is it does not respect forced subtitles in mkvs, is this something that LAVF would respect (not a huge issue since I only ever have forced subs if I have any, but would be nice just to keep subs shut off and let the forced subs appear it present)?

Is this a issue with your setup or have you talked to others that have the same problem? I havnt been using it long enough to notice. So your saying your only options are: turn off subtitles, and you won't get any including forced, or: turn on subtitles and you will get forced and the other? You can't just turn them off and have the forced show up like there suppose to, like when someone is speaking in a foreign language?

LAVF Splitter has options for dealing with subs that for me, work extremely well. I suggest trying it out and checking the options page for LAVF Splitter for the subs. I have it set to "Only forced subs" with "Only matching language" checked. So by default subs are turned off, but, forced sub tracks will be played. It rocks.

Its a very nice card. Again keep in mind you are buying a mid level card. But I have been very happy with mine. If you have the choice I recommend an Msi Twin Frozr. Excellent temps and very quiet.

Now that is what I wanted to hear

The current internal MPC splitter does not respect the forced subs flag. If done correctly you should be able to keep subtitles turned off and forced subs would appear regardless. Currently you need to keep subtitles turned on

Hang on there. That's a different issue than the splitter. That's the subtitle renderer's doing. ALL the splitter does is provide the subs to the renderer. Currently neither ffdshow or MPC-HC's sub renderer is "perfect" unfortunately. However, Nev's splitter understands forced and default flags and passes them along. That's about all he can do. It's up to the sub renderer to respect them. As you know, they don't.

I thought the issue though was that the splitter does not present the flag, so by the time it gets to the renderer the flag is gone

That's one of the issues, yes. The renderer also has to accept the flag. Maybe the sub renderers for MPC and ffdshow do. I was under the impression they ignore them but maybe I'm wrong on that. Nonetheless the splitter does have to read those flags and present them to the sub renderer. MPC's doesn't do that. LAVF Splitter does.

PGS subs are internally flagged as forced, on a line by line basis. It has nothing to do with the splitter.

However, neither MPC-HC renderer nor ffdshow respect these.
*Maybe* i can actually analyse the subtitle packages, and filter out the forced subs in the splitter. But thats a big maybe, and i'm not even sure i have a disc doing it like this.

But really, this is terribly OT for the NVIDIA thread. Feel free to head over to the Doom9 thread for LAV Splitter.

PS:
I actually opened some discussion about this topic; http://forum.doom9.org/showthread.ph...12#post1496412

You're killing me man. But yes, you're right, OT for this thread. Apologies to the nVidia guys and gals.

Please forgive me nVIDIA guys. I finally got around to registering over at Doom9 just to thank nev for his work and in particular for this latest effort regarding forced PGS subs but couldn't wait 5 days

If this works out it's the last issue preventing me from moving over to either mkv or "Blu-ray Lite" as it's being called over at INTERACT (also likely to work in mediaportal with the BDHandler plugin).

Truly amazing work all round nev. I'd say Genius but don't want to make you blush

Sorry again for the OT post. Won't do it again

Wo0zy.

Any news guys?

I'm ready and very close to buy a new notebook with the 540m card(there's a huge promotion here on the new Acer notebooks,including the 540 2GB !!!!)
It would be a disaster for me if the 540 fails to bitstreaming audio out...

Hello everyone. What manufacturer have you guys been going with? I've decided that it is finally time for me to get rid of my Xonar HDAV Slim & GT 9800 and get a GTX 460. I saw a model from MSI on Newegg (MSI N460GTX CYCLONE 1GD5/OC GeForce GTX 460) that has a lot of good reviews, but I was worried about having troubles with the mini HDMI. Has anyone had a problem with the mini HDMI going to a Harman Kardon receiver? Anyone have a GTX 460 from MSI? Is there another brand that someone could recommend?

Thanks for the help!

I have had good luck with the Gigabyte cards, especially the ones with their Windforce coolers, because they are extremly silent.

miniHDMI didn't work for me, but a simple DVI-to-HDMI adapter worked just fine, including Audio and all the fun.

Mini hdmi has worked fine for me from two different cards. Going to a monitor and my 3d plasma. That msi is a great card. Msi makes great coolers that are qwuiet and work very well. I love my twin frozr II.

I occasionally had some problems with my miniHDMI on my GTX 460, but I don't really know if the problem is the interface design or the cable, usually I just unplug and replug and hope it comes back to normal. Usually the problem is solved with replugging (maybe I need to adjust my strength and angle of insertion), if it still fails I just fire up my browser and order a new cable.

There are some people who claim the miniHDMI plug design is flawed because the connection is less reliable than the regular HDMI plug. I don't know if that is true or not.

Anyway, I switched to a GTX 560 now so I am back to regular HDMI.

Thanks for the advice guys. I think I'll order that MSI card. I didn't really want to spend the money, but I have been having some problems and it seems that Asus isn't supporting the Xonar HDAV Slim anymore.

I just replaced my evga gts 450 (nothing wrong with it, just a tad too loud for me) with an Asus GT520 Silent (fanless):

http://www.newegg.com/Product/Produc...82E16814121438

Perfect little card for HTPCs!

I didn't even know these were out. Supposed to be about equal to a 6450 or 5550.

A bit too slow for my HTPC taste, needs a bit more power to process the video a bit.
I have a GTS450 myself, from Gigabyte with their custom windforce cooler, absolutely quiet. EVGA isn't usually known for "quiet" cards...

besides visual inspection, do you know of a way to quantify if a gpu has enough processing power?

Well, it depends on what you want to do. E.g. maybe in the future you want to do something like this:

http://www.avsforum.com/avs-vb/showthread.php?t=1326189

With projects like these the more power you have the better. So my recommendation is always to get the fastest GPU that fits your budget and your thermal requirements. That said, 22nm is coming next year and should noticeably improve the performance per Watt ratio. So it might also make sense to go cheap now and upgrade next year.

Don't you mean 28nm? Or do you think Intel will be able to put out powerful enough GPUs for that stuff and madVR? I myself am waiting for 28nm later this year, maybe for a new laptop.

Yeah, meant 28nm.

BTW thanks for linking to that interpolation filter. Just tried it, and I'm getting dropped frames with madVR and my C2Q Q9450 and 5770. It needs power indeed. Had to disable ReClock's resampling and still doesn't run completely smooth. I can overclock from 2.66 to 3.2 GHz without much of a power hit, but yeah, that's one example for why you would need a powerful setup. Modern CPU/GPUs are great at handling efficiency though, so even a more powerful card doesn't draw much power if you're not hitting it hard.

There's little danger that I'll want to do any kind of interpolation personally


I was asking more to add another way to break down GPUs within a family and across platforms when reviewing them. The problem with visual inspection is that it's hard to quantify (HQV tries to do this, but w/o context it just ends up highlighting the problems inherent in the approach) the differences. So I'm always looking for other ways to make it easier.

Haha! Some people love it, some people hate it. To be fair, the current hardware and software implementations are all pretty bad. So maybe those who hate it might change their mind if they see properly working implementations some time in the future. Personally, I haven't fully made up my mind yet. But The Hobbit being shot in 48p is food for thought. Anyway, that's OT, I guess...


I see. You said "powerful enough". So my first thought: "powerful enough for what exactly"?

On my "madVR to do list" is some kind of benchmark, measuring things like "how fast can I upload frames to the GPU?" or "how many video frames per second can I scale with Lanczos4 from resolution X to resolution Y by using pixel shaders" etc. Would a benchmark like that help? It would be very madVR specific, obviously. I have to say, it's quite some time away, though, cause I want to have madVR feature complete first...

Or is your main target to find out quality differences between different GPUs in terms of video playback? That's a rather complex topic. HQV helps showing differences in deinterlacing quality. But that's only a small part of overall quality, especially since Blu-Ray movies aren't interlaced.

It would certainly be interesting, but I worry that madVR specific features are probably too niche to be useful to a wider audience when they are evaluating the differences.

TBC, I don't want that taken the wrong way. Nothing I've seen can match what madVR can do with video - just that the installation, caveats and usability trade-offs limit its scope. If the metrics presented are only applicable to someone using madVR, it wouldn't make it any easier for those who don't.


My interest is more for quantifying GPU performance for non-BD content; even low-end GPUs do a decent enough job with BD.

Nevcairiel's comments regarding the GT520 v. GTS450 got me wondering how to easily break down the differences - everyone loves #s

non-BD content? What kind of content and playback situation do you mean exactly? Depending on the media player and renderer implementation, sometimes pixel shader power is needed for scaling or for calibration / color correction or for post processing. But this is all so very much dependent on what setups and settings users are using. Because of that it's IMHO almost impossible to make general judgements about which GPU power is needed for "video playback". There's simply too much variation. I think maybe you could prepare 3 different typical usage scenarios (one very simple with straight playback, one with deinterlacing + scaling etc, and maybe one with lots of additional post processing), and then test which GPUs can handle which. That's the only thing that comes to my mind right now. Don't know if that helps, just brainstorming here...