How enable GPU decoding?

[Vulcan219]

I could get rid of the black-window-problem by following instructions AMD support sent me when I reported the problem.

Seemingly remains of older drivers/applications can corrupt the operation of the latest ones. Uninstalling the drivers, removing any ATI/AMD folders and cleaning the registry fixes the "black window" problem. But "blocky" decoding still occurs in 12.6.

Bionic

I am havin a simlar problem with 2.0.3, I can play HD 720p videos fine, but it will not play 1080p videos, it gives sound, but no video, also when you close the VLC, it hangs up the process and I have to use the task manager to end the process. I have hardware Acceleration on but nothing happens on the video part. I also get the same issue with MP4 as well, and AVI, but on windows media player, Power DVD 12, media player classic, and Nero's media player they all play fine. Even with the Hardware acceleration off, the same thing. So I can say the issue isn't just for the people with the ATI cards. I also done what nVidia told me to do and I get the same result as you. I posted a similar post in another thread.

My system is
Asus M5A97 Evo/Pro motherboard
AMD B55 quad core processor
Corsair ram 12 gigs 1066 DDR3
Nvidia 9800GTX Video card 1 Gig

VulcanVulcan219
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[Vulcan219]

Believe it or not nVidia had snuck in a new update and for some reason the update program didn't let me know there was a new update available, and when I updated the video card drivers everything worked again, now that was wierd but it worked for me.

Also what version of the VLC program are you using and what video card and such, this will give me a better understanding of what you have for basic setup, also do you have GPU Acceleration turned on or not? But first check to see if you need an update to the video card, and if so update it and check to see if things work from there, if not then send me the info I asked for and we will go from there.

[MeStinkBAD]

I have a hard time understanding why, unless your computer is from 2004, why you would need to bother with hardware decoding of H.264. Hardware decoding usually only supports a limited number of profiles (main, high, etc). If it's been encoded using a non-standard profile it won't playback properly.

[Vulcan219]

I have a hard time understanding why, unless your computer is from 2004, why you would need to bother with hardware decoding of H.264. Hardware decoding usually only supports a limited number of profiles (main, high, etc). If it's been encoded using a non-standard profile it won't playback properly.

Not all hardware decoding for H.264 is the same from the different programs out there, and sometimes to meet the standards of some of the programs you need to update the video card software for the correct drivers to work with the codecs, sometimes. I know it doesn't make sense but that is what you need to do sometimes, also some programs work better on decoding the H.264 without the hardware decoding on. Sometimes it is a hit and miss, and you have to try different things to get it working right, that is why I and many others like VLC. It gives you the power to experiment to get the best results that works with your system and its setup. If that makes sense to you, then you are starting to get an understanding that not all systems, and hardware handle the H.264 coding the same.

Also even a computer from 2004 can handle the H.264 coding, it is all in the video card or the onboard video, that is where the coding and decoding for that takes place, and the programs used for that, depending on whether you use ffmpeg program or another program with that video card of built in video, it is the ability of the card or embedded video that handles that and if it can't then you need a program that can handle it, and VLC has that built in and usually can handle that for you no matter what computer you have.

Vulcan

[artbio]

Hi.

I noticed that VLC 2.0.5 doesn't play MPEG1 videos when GPU decoding is enabled. With GPU disabled it plays fine. The beta version also manifests this issue. While version 2.0.4 doesn't! Can anyone confirm this? Thanks in advance.

[xxxzeed99]

Thank you. It work perfect

[BloodZeed]

hello if i have an i7 3770k which has hd4000 and 5850 ati which one will vlc use to encode

[Vulcan219]

This depends on a few things, like is the HD4000 the built in graphics on the mother board? and the 5850 the actual Graphics card? Also are they Hybrid Crossfired together?

If you are useing the Graphics card only then the Hardware encoding will be used from the Graphics card, if you are using the onboard video only, then it will use that, if you are using both through the Hybrid crossfire, I would think it would still use the Graphics card only, but it may pull from the onboard video, or possibly both.

But if you do have the Graphics card in its slot, and you are plugged into that with your monitor, then it will definitely use that as the Hardware acceleration enconding.

I hope that helps you...

Vulcan

[Jean-Baptiste Kempf]

It will use whatever GPU is defaulted.

[BloodZeed]

vlc does not use the full clock speeds when decoding 400mhz gpu clock and 900mhz memory clock
my gfx card is 775mhz gpu how do i get vlc to use the full core clock speeds

[Jean-Baptiste Kempf]

You don't. It should be automatic.

[herostime]

There have so many ways, I have also encounter this question, maybe i could try some ways to solve it.

[ButylkaHeap]

How do I choose different hardware in hardware decoding when I have two? DXVA in Intel's iGPU and DXVA in nVidia card?

[jackburton686]

I was bored and messed with this GPU option and I noticed some problems during seek and audio/video sync.

[mario9983]

it is hidden .You have to go through set up.Sometimes more than 2-3times.

[lainiwaku]

GPU ON VS GPU OFF

video is farly better without gpu acceleration
(i have done error on video making, the first part is gpu on not off )

http://youtu.be/h7WZqSwlIEI

[Francky]

GPU ON VS GPU OFF

video is farly better without gpu acceleration
(i have done error on video making, the first part is gpu on not off )

http://youtu.be/h7WZqSwlIEI

C'est un problème avec les cartes Nvidia !
J'ai la même chose sous W7 64 bits avec une 9600GT
Cela le fait aussi avec les .mp4 et .FLV
Le point commun que j'ai trouver c'est qu'il s'agit de video h.264

je crois qu'il s'agit de ce bug:
viewtopic.php?f=2&t=98373

Cordialement, Franck

English for Google
This is a problem with Nvidia cards
I have the same thing in W7 64 bit with a 9600GT
It also does with FLV. Mp4 and.
The common thread I find is that it is h.264 video

I think it is this bug:
viewtopic.php?f=2&t=98373

[Aeneas]

GPU ON VS GPU OFF
video is farly better without gpu acceleration
(i have done error on video making, the first part is gpu on not off )
http://youtu.be/h7WZqSwlIEI

This is false.
On a //Q6600//12 GByte Sdram//MSI Nvidia 670//Windows 7 64// ,
Windows Task Manager results of VLC file playback:

With VLC GPU setting turned Off,
ATSC/ClearQAM 20%
HD PVR 40%

With VLC GPU setting turned On,
ATSC/ClearQAM 10%
HD PVR 9%

It just so happens that the workhorse for most HD recording on the PC is the HD PVR,
since most channels for which the cable customer pays cash money, are encrypted and
thus are invisible to ATSC/QAM products.

Unfortunately there are serious Crash Bugs in VLC when the GPU is turned On.
These Crash Bugs in the VLC GPU On functionality must be fixed immediately.
-----------------------------------
There is also a separate Bug primarily encountered in VLC ATSC/QAM playback,
with GPU On or Off, in which random access within a file mouse clicking the progress bar
results in stalls in playback that can last 30 seconds to 5 minutes.
This VLC Bug must also be fixed.

[gohanrage]

Is GPU Decoding still Experimental?

I am trying to figure out why every video I play using VLC starts out with black blocky artifacts. Only noticed it Today. so I am trying the GPU accelerated decoding.

"Video Quality Post-Processing Level" not sure what this means but its at 6 I didn't put that number. I try and use the Question Mark to find out what things do and I just get the Red Circle with with the Line Through it.

Whether I use GPU Decoding or reset everything to defaults. I still get the black artifacts.

[Lotesdelere]

Whether I use GPU Decoding or reset everything to defaults. I still get the black artifacts.

Please upload a short sample of a problematic file to EmbedUpload.com, so it will upload the file for you to several other hosts and then post the link to the file here.

Cut it with DGsplit and read here about how to do it:
viewtopic.php?f=14&t=57724&p=193335#p193335
50 MB max will be enough.

[Aeneas]

Whether I use GPU Decoding or reset everything to defaults. I still get the black artifacts.

Please upload a short sample of a problematic file to EmbedUpload.com, so it will upload the file for you to several other hosts and then post the link to the file here.
Cut it with DGsplit and read here about how to do it:
viewtopic.php?f=14&t=57724&p=193335#p193335
50 MB max will be enough.

I have never noticed these artifacts with numerous types of files, GPU on or off,
so VLC developers should not waste time on this
rather than fixing the VLC Crash Bugs in GPU On mode.

[Jean-Baptiste Kempf]

This VLC Bug must also be fixed.

Did you file bugreports?

[Aeneas]

This VLC Bug must also be fixed.

Did you file bugreports?

I have posted several bug reports on these Crashes on this forum.

[Ludrax]

hm... there is nothing to select under hardware-accelerated decoding in nightly builds.

[Aeneas]

hm... there is nothing to select under hardware-accelerated decoding in nightly builds.

Are you saying VLC developers removed the GPU Acceleration feature, rather than fix it ?