The VideoLAN Forums

Does it help if you increase VLC caching?

I just tried vlc-1.1.0-git-win32 on my machine, playing 1080p and 720p videos.

My system:
Athlon 64 X2 6000+
(MMX, Extended 3DNow!, SSE, SSE2, SSE3, AMD64, Cool’n’Quiet, NX-Bit, AMD-V)
Radeon HD4350
Windows 7 Professional x64

Playing H264 material without GPU acceleration brings my CPU to 15% - 35% usage.
When activating GPU acceleration, CPU usage goes up to 65% (one core maxed out) and the video shows a frame every 2 seconds or so. Sound plays nicely.

All in all I have exactly the same situation as vbElefant.

Ok, ATI classic issue then.

AMD Athlon 64 X2 6000+
Windows 7 Ultimate Edition (Build 7600)
CPU Arch : 1 CPU - 2 Cores - 2 Threads
CPU PSN : AMD Athlon 64 X2 Dual Core Processor 6000+
CPU EXT : MMX(+), 3DNow!(+), SSE (1, 2, 3), x86-64, AMD-V
CPUID : F.B.2 / Extended : F.6B
CPU Cache : L1 : 2 x 64 / 2 x 64 KB - L2 : 2 x 512 KB
Core : Brisbane (65 nm) / Stepping : BH-G2
Freq : 3114.53 MHz (200.94 * 15.5)
MB Brand : Asus
MB Model : M2N-E
NB : NVIDIA nForce 570 SLI rev A2
SB : NVIDIA nForce 570 SLI rev A3
GPU Type : NVIDIA XFX GeForce 8800 GT 512 mb 256 bit
GPU Clocks : Core 600 MHz / RAM 900 MHz
DirectX Version : 11.0
RAM : 4096 MB DDR2 Single Channel
RAM Speed : 311.5 MHz (Unknown) @ 5-5-5-15
Slot 1 : 1024MB (5300)
Slot 1 Manufacturer : A-Data Technology
Slot 2 : 1024MB (5300)
Slot 2 Manufacturer : Noname
Slot 3 : 2048MB (5300)
Slot 3 Manufacturer : Kingston

when gpu acceleration on cpu load is about 15% not much but appears it takes only one core of cpu unfortunately also there is few bugs what i had encountered !
can't set full screen size video also tested from low video sized till hd and cpu load was from 15% til 65% ....
also here are those bugs !


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The 500 days of summer taskbar issue is Window 7 problem. Not related to DxVA2.

it's not only for that movie it's for any video same issue ... no matter what format even hd bluray or low dvdrip ...

Just an update on my case:
I installed the latest nightly release (vlc-1.2.0-git-20100503-0003-win32), and noticed that it runs a little bit smoother than the 1.1.0, or at least I felt that.
576p movies seems to have only a few frames skipping, almost "not annoying", but still have the green bar on the top.

The most curious was when I played "Cars". The colors weren't "aligned":


CPU Inter Q6600
GPU ATi HD4850 512 MB
Windows 7 Pro 64-bit

W7 64bit / Intel C2D E6750
ATI HD2600 PRO all green screen and it does support h.264 decoding. I use it on powerdvd and mpc hc

CPU Amd Phenom II X4 965 Black Edition OC'ed from 3.4Ghz to 4.0Ghz
GPU Powercolor Radeon 5670 DX11
Windows 7 Ultimate x64

I ran the Iron Man video you linked to
in VLC 1.0.3 i was using 29% CPU running that file, obviously without the gpu acceleration, however it ran very smoothly no problems whatsoever
in the 1.1.0 with GPU acceleration. it started off by saying it needed to rebuild my font cache and froze on that so i restarted it. after restart i got 5 seconds of black screen and then video that was choppy beyond anything i have ever imagined. (cpu was still around 29% and the audio was fine, but it looked like it may have taken a while to open the file) i noticed earlier in one of the posts you mentioned osd so i went and disabled that
the result was almost exactly the same except it seemed to start the video sooner and so showed different frames when chopping.

seeing as this is consistent with your ati findings my ati catalyst driver is the ATI RedwoodXT 8.69 RC3. i'm guessing this is what it will come down to in the end. having a driver up to date enough that it is compatible with your enhancement.

on another note i tried the file with pixel shader enhancements in media player classic and it worked just fine, on and off. i believe its called EVR on their software. not sure if there is any similarities in how theirs works but as far as i understood it also used the GPU to work with the video.

This isn't the same as EVR, I am afraid.

Perhaps I can help here. A few weeks back I purchased the newly delivered Panasonic TM700 camera. This camera has not only four AVCHD (1920x1080) modes (HE/5 Mbps, HX/8 Mbps, HG/13Mbps, and HA (17Mbps) but it also shoots at 1080/60p at 28 Mbps. It uses MPEG-4 AVC/H.264 compression. I have been very pleased with the quality of the video files - especially the ones shot at 1080/60p which are pretty awesome. All the files have .m2ts extensions.

Now here is the scoop, the camera comes with Panasonics own software (HD Writer AE 2.1) which will play all the videos on my machine perfectly - even the 1080/60p. Absolutely no jerkiness. So I know it can be done by software on this machine. This machine is a Dell XPS 420 (2 yrs old) Vista / 32 SP2 machine using quad processors running at 2.66 GHz. My video card is an ATI Radeon 2400.

I can not get the video to work in this new version - at least not with the combination of settings I have tried so far. Either it jerks consistently like the current production version 1.0.5, or it shows a picture as a still, or the whole screen turns green.

I am happy to do whatever testing you think will be needed (I can even send you some small test files). I would like to see VLC work with these video files.

Let me know how I can help or email me at yonah@aol.com

Have a great weekend,
Joel

Perhaps I can help here. A few weeks back I purchased the newly delivered Panasonic TM700 camera. This camera has not only four AVCHD (1920x1080) modes (HE/5 Mbps, HX/8 Mbps, HG/13Mbps, and HA (17Mbps) but it also shoots at 1080/60p at 28 Mbps. It uses MPEG-4 AVC/H.264 compression. I have been very pleased with the quality of the video files - especially the ones shot at 1080/60p which are pretty awesome. All the files have .m2ts extensions.

Now here is the scoop, the camera comes with Panasonics own software (HD Writer AE 2.1) which will play all the videos on my machine perfectly - even the 1080/60p. Absolutely no jerkiness. So I know it can be done by software on this machine. This machine is a Dell XPS 420 (2 yrs old) Vista / 32 SP2 machine using quad processors running at 2.66 GHz. My video card is an ATI Radeon 2400.

I can not get the video to work in this new version - at least not with the combination of settings I have tried so far. Either it jerks consistently like the current production version 1.0.5, or it shows a picture as a still, or the whole screen turns green.

I am happy to do whatever testing you think will be needed (I can even send you some small test files). I would like to see VLC work with these video files.

Let me know how I can help or email me at yonah@aol.com

Have a great weekend,
Joel

Your video card is ATI, which explains the bug...

> Your video card is ATI, which explains the bug...

what bug? I have not read extensively through this thread... perhaps you can explain the 'bug'. Does bug mean it is being fixed? Keep in mind I have other software from Panasonic on this same desktop using ATI that exhibits no issues and plays the video files perfectly.

Joel

p.s. - I just tried playing a video clips (1080/p60) on my laptop which uses a different display chip - NVIDIA and got the EXACT same results WHILE the video plays perfectly fine with the Panasonic supplied software. Again, its NOT the video chip - it's either the settings in VLC or a software fix will be required.

Joel

Maybe both then.

Here's my first experience with the new feature (using vlc-1.1.0-rc-20100510-0202-win32.exe):

I tried playing the Big Buck Bunny stream from the x264 demo Blu-ray.
It's 1080p AVC video with DTS audio, and when I enable the experimental GPU decoding, it looks like this.
CPU usage is way lower than with software decoding, though, but that does not help if the image is corrupted.

System info:

Windows 7 x64
Intel Core2Duo P7350, 2.0 GHz (SSE, SSE2, SSE3, SSSE3, SSE4.1)
NVIDIA GeForce 9600M GS (driver version: 197.16)

relevant line from DxVAChecker:
ModeH264_VLD_NoFGT DXVA2 NV12 720x480 / 1280x720 / 1920x1080

EDIT:
I just tried several other files using the AVC video codec in various SD and HD resolutions - the result is the same: low CPU load but severely messed up colors.

FYI, the same files play fine with DXVA in MediaPlayerClassic HomeCinema, but I don't know if that player is using DXVA1 or 2.

Just installed and my blu-ray rips in h.264 are playing perfectly and only running at about 10% CPU.
Brilliant stuff. Thanks!!!

Windows 7 x64
Vaio AR61M
T7500
4GB RAM
NVIDIA 8400M GT

Here's my first experience with the new feature (using vlc-1.1.0-rc-20100510-0202-win32.exe):

I tried playing the Big Buck Bunny stream from the x264 demo Blu-ray.
It's 1080p AVC video with DTS audio, and when I enable the experimental GPU decoding, it looks like this.
CPU usage is way lower than with software decoding, though, but that does not help if the image is corrupted.

System info:

Windows 7 x64
Intel Core2Duo P7350, 2.0 GHz (SSE, SSE2, SSE3, SSSE3, SSE4.1)
NVIDIA GeForce 9600M GS (driver version: 197.16)

relevant line from DxVAChecker:
ModeH264_VLD_NoFGT DXVA2 NV12 720x480 / 1280x720 / 1920x1080

EDIT:
I just tried several other files using the AVC video codec in various SD and HD resolutions - the result is the same: low CPU load but severely messed up colors.

FYI, the same files play fine with DXVA in MediaPlayerClassic HomeCinema, but I don't know if that player is using DXVA1 or 2.

This is a bit worrysome. Could you file a bug on http://trac.videolan.org/vlc ?

Just installed and my blu-ray rips in h.264 are playing perfectly and only running at about 10% CPU.
Brilliant stuff. Thanks!!!

Windows 7 x64
Vaio AR61M
T7500
4GB RAM
NVIDIA 8400M GT

Many thanks for the report. I have mostly the same comp @home but with Vista

This is a bit worrysome. Could you file a bug on http://trac.videolan.org/vlc ?

EDIT #3: Creating the ticket in trac now worked.
ticket 3624

FlashGekko: I get the same thing here.
This is new I guess.

FlashGekko: I get the same thing here.
This is new I guess.

I'm having the same issue on a gtx280 with h264 files. If you think it could be driver related im willing to install old drivers to test it out.

Having the same issue as Flashgekko and others. Mkv files in the latest nightbuild vlc-1.1.0-rc-20100514-0202-win32.exe on my nvidia ion in asus eee box eb 1501. te same green quad in the middle of the screen

vlc-1.1.0-pre4-20100504-0202-win32.exe with this build everything works well, beside one problem that happens with all builds untill now. When i switch to fullscreen than it plays 720p hd file perfectly(with perfect sound). when i switch to normal windowed mode then the sound gets choppy, but the video is okay with build vlc-1.1.0-pre4-20100504-0202-win32.exe

One of the sample WMV-VC-1 video which came with Windows 7 did not playback properly, with and without HWACC.
C:\Users\Public\Videos\Sample Videos\Wildlife.wmv