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Old 27th March 2011, 07:53   #6281  |  Link
sneaker_ger
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It has 512 MB dedicated memory (it's supposed to be able to utilize additional 768 MB system RAM).
GPU load is really high for 60p and jumping around crazy between 10% and 75%, with a lot of dropped frames.
It stays between 25% and 35% for 24p. If I activate bicubic chroma upsamling it goes to 80% for 24p, but stays stable.
So madVR really takes this much power? Makes you wonder how a laptop is able to run games.
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Old 27th March 2011, 08:08   #6282  |  Link
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My 9600M GT can't upscale 1280x720x60p to 1920x1080 in real time. with default settings. It seems to manage about 37fps (or was it 47?).
For the above, were you testing with Bilinear?

How much video RAM did GPU-z report as being used?
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Old 27th March 2011, 08:18   #6283  |  Link
sneaker_ger
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I didn't take the resolutions into account, the stuttering happened on a 1080p display, but I'm currently testing on the built-in screen with 1366x768. It uses about 100MB. Is upscaling to 1080p considerably more demanding? Is playing back 1080p material on the 1080p display less demanding than playing back 720p on 1080p? (Can't rest right now, only with the internal display)
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Old 27th March 2011, 08:33   #6284  |  Link
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Ok, I also watched the CPU-load now and saw that it goes up to almost 100% on the 60p clip with ffdshow. I hadn't noticed this since it looked fluid on my short test with EVR. lavcuvid+evr is fluid.

/edit: gpu loads were incorrect

Last edited by sneaker_ger; 27th March 2011 at 09:19.
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Old 27th March 2011, 09:07   #6285  |  Link
namaiki
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Quote:
Originally Posted by sneaker_ger View Post
Is playing back 1080p material on the 1080p display less demanding than playing back 720p on 1080p?
I would say yes.
However, if using Bilinear for all scaling, my Intel 4500MHD GPU doesn't have lag as such.

What about video engine load in GPU-z when using lavcuvid?

Last edited by namaiki; 27th March 2011 at 09:10.
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Old 27th March 2011, 09:15   #6286  |  Link
sneaker_ger
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Seems that I'm basically unable to do anything about it, because:
1.) madVR + lavcuvid = gpu load too high
2.) madVR + ffdshow = cpu load too high

Thx for your help. At least I know that there shouldn't really be any bottleneck when playing 24p now, looking at the loads.

Last edited by sneaker_ger; 27th March 2011 at 09:56.
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Old 27th March 2011, 09:20   #6287  |  Link
sneaker_ger
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Quote:
Originally Posted by namaiki View Post
What about video engine load in GPU-z when using lavcuvid?
Up to 90%.

/edit:
On the 24p video the gpu load is only around 50% but I get a lot of dropped frames.

Last edited by sneaker_ger; 27th March 2011 at 10:48.
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Old 27th March 2011, 13:24   #6288  |  Link
Plutotype
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which MPEG-2 decoder to use for SD

Hi all,
Maybe offtopic, but I found out, that decoders without deinterlacing option ON provide following effects by interlaced MPEG-2 SD playback:
FFDshow 3776(libavcodec )+madVR 0.47
http://img339.imageshack.us/f/mpeg2s...libavcode.png/

MPC-HC internal video decoder ( with auto deinterlacing ON)+madVR 0.47
http://img853.imageshack.us/f/mpeg2s...deodecode.png/

FFDshow 3776 with deinterlacing ON(yadif)+madVR 0.47
http://img228.imageshack.us/f/mpeg2s...libavcode.png/

Microsoft DTV-DVD video decoder+madVR 0.47
http://img864.imageshack.us/f/mpeg2s...ftdtvdvdv.png/

Which deinterlacer+resizer do you recommend to use for MPEG-2 SD videos? I havent noticed this with MPEG-2 HD content, maybe some of you can explain why too. If the deinterlacing option is check ON in ffdshow, does this apply only to interlaced video streams? Can I leave it ON when watching HD videos?

Thanks
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Last edited by Plutotype; 27th March 2011 at 17:43.
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Old 27th March 2011, 13:27   #6289  |  Link
namaiki
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Quote:
Originally Posted by sneaker_ger View Post
On the 24p video the gpu load is only around 50% but I get a lot of dropped frames.
Which resizers are being used and what resolution video and screen?
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Old 27th March 2011, 13:50   #6290  |  Link
sneaker_ger
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bilinear for all three options + all trade quality for speed ticked
1920*1080p24
1366x768
in 1 minute 6 dropped and 22 delayed frames
(the 60p sample would drop over a 1000 frames in the same time)

This is still using lavcuvid - the author says himself that performance improvement is still on his todo list and might come soon. It seems they don't work well together - or rather not well enough on low end systems.
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Old 27th March 2011, 13:59   #6291  |  Link
namaiki
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I haven't been able to test with with lavcuvid as my nVidia GPU only has 256MB VRAM (it works, but immense lag with madVR at higher resolutions, GPU-z reports GPU memory as maxed out - same for DXVA for some 1080p stuff) and the other is Intel.

Last edited by namaiki; 27th March 2011 at 14:07.
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Old 27th March 2011, 14:11   #6292  |  Link
nevcairiel
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If GPU memory is your issue, the performance enhancements won't help you much. You just need a minimum amount of memory for fluid playback when combining GPU Decoding with madVR.
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LAV Filters - open source ffmpeg based media splitter and decoders
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Old 27th March 2011, 14:22   #6293  |  Link
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@Plutotype: Have you tried Dscaler?
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Old 27th March 2011, 15:33   #6294  |  Link
Thunderbolt8
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coreavc 2.5 now supports dxva decoding for ati, is there anything beneficial using it in combination with madvr? or is this not recommended?
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Old 27th March 2011, 15:34   #6295  |  Link
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DXVA does not work with madVR.
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LAV Filters - open source ffmpeg based media splitter and decoders
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Old 27th March 2011, 15:41   #6296  |  Link
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Yea, it doesn't seem to offer any benefits. As a software decoder, though, it's not bad. I've been testing it against Cyberlink and ArcSoft. The quality is right up there as far as I can see (thanks, madVR ) and the CPU utilization is lower than either Cyberlink (highest) and ArcSoft (right in the middle). Not that we're talking a huge difference here. All 3 are within 5% of each other.
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Old 27th March 2011, 15:59   #6297  |  Link
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Quote:
Originally Posted by noee View Post
@Plutotype: Have you tried Dscaler?
Yes, but currently I can not change anything in the properties page ( settings ) of dcaler - there is a bug in the filter as stated here:
http://forum.doom9.org/showthread.ph...62#post1482762

EDIT: I managed to check the settings ( with the NXTOGGLE.bat thing ), the result with every deinterlace setting ( auto, weave. bob ) was like this:
http://img692.imageshack.us/f/mpeg2s...rmadvr047.png/

So the ffdshow yadif option looks best to me.

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Last edited by Plutotype; 27th March 2011 at 16:23.
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Old 27th March 2011, 19:57   #6298  |  Link
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Alte Haas Grotesk bold subtitle font

Hi all,

today I tried Alte Haas Grotesk bold subtitle font in MPC-HC. On my FullHD LCDs it gave me nice results. Give it a try if you like:
http://img.dafont.com/dl/?f=alte_haas_grotesk

Installation on win7: unzip - right click on the ttf files - install. Restart needed to make it visible in Windows.

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Old 27th March 2011, 23:25   #6299  |  Link
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Many thanks for adding subtitle support, you have freed me from directvobsub. I'd like to get rid of ffdshow as well, but Deband has its grip on me. Will there perhaps be a stronger dither available in the future?
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Old 28th March 2011, 00:24   #6300  |  Link
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It's still random, but I think I have a better way to reproduce the missing line+blank control I described.

1. Open a video file.
2. Use skip forward repeatedly. Make sure it does go across files ie. goes through a couple files.
3. By a third file or so, randomly seeking around. I personally use mouse wheel which set to "Jump Forward/Backward (medium)" repeatedly.
4. Watch the video for a bit.
5. Go back to 3. Repete.

After awhile it should happen. If not using exclusive mode, missing line always come with the blank control+msg box. I havn't tried exclusive mode for awhile but I think it should give you the black msg box also.

I've also manage to seek back ~1min as madshi suggest and the result is the missing line persisted.

Also, I want to add that when this happen, I can't right click and the control is blanked, but the video keep playing just fine (apart from the sub randomly missing). At least for around a minute anyway. I always try to close it before it goes on any longer.
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Last edited by Hypernova; 28th March 2011 at 00:28.
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