If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
one app gives smooth video, one gives jerky
I sometimes watch old TV shows off the net (in either firefox or
opera). In small screen (about 1/8th the screen) they manage to run smooth. In full screen they're jerky. Seemed like it must be a video card problem. Then I watched a DVD using PowerDVD. Full screen, much higher resolution than the other stuff, no jerkiness at all. I would think it was net bandwidth but even videos that buffer up first have the same problem. And as I say it can run smooth in small screen and full screen is just small screen data magnified. This would lead me to conclude PowerDVD is MUCH more efficient than my browsers. True? Is there some other way to watch net video that is as efficient as PowerDVD? Just trying to get smarter about this stuff. Thanks, Tom |
Ads |
#2
|
|||
|
|||
one app gives smooth video, one gives jerky
The resolution from the web-based video is probably set for smaller
view,while the dvd can/could be for full screen.Powerdvd has nothing to do with it. "njem" wrote: I sometimes watch old TV shows off the net (in either firefox or opera). In small screen (about 1/8th the screen) they manage to run smooth. In full screen they're jerky. Seemed like it must be a video card problem. Then I watched a DVD using PowerDVD. Full screen, much higher resolution than the other stuff, no jerkiness at all. I would think it was net bandwidth but even videos that buffer up first have the same problem. And as I say it can run smooth in small screen and full screen is just small screen data magnified. This would lead me to conclude PowerDVD is MUCH more efficient than my browsers. True? Is there some other way to watch net video that is as efficient as PowerDVD? Just trying to get smarter about this stuff. Thanks, Tom . |
#3
|
|||
|
|||
one app gives smooth video, one gives jerky
On Oct 31, 9:38*pm, Andrew E. wrote:
* The resolution from the web-based video is probably set for smaller *view,while the dvd can/could be for full screen.Powerdvd has nothing to *do with it. Right. And in that case the web video should have an even easier time giving non-jerky video. |
#4
|
|||
|
|||
one app gives smooth video, one gives jerky
On Nov 1, 1:43*am, Paul wrote:
http://www.adobe.com/products/flashp...eqs/index.html * * Paul Thanks for the info. So Flash is the culprit. It only takes 3-5% on yours? I tried that on mine. Flash takes about 50% in small mode and maybe 60% in full screen. On the other hand PowerDVD take about 20% regardless of display size. I use laptops so I'm stuck with my video setup. So on my next system I'll have to pay attention to what video cards play well with Flash. What I have now is an ATI Radeon Express 1150. Evidently Flash is not using it well. My display info says I have 128M on the vid card but that it is also using 700M of shared mem. So does that mean if I had 1G on the video card it wouldn't need to use shared and that might help the problem? Thanks, Tom |
#5
|
|||
|
|||
one app gives smooth video, one gives jerky
njem wrote:
On Nov 1, 1:43 am, wrote: http://www.adobe.com/products/flashp...eqs/index.html Paul Thanks for the info. So Flash is the culprit. It only takes 3-5% on yours? I tried that on mine. Flash takes about 50% in small mode and maybe 60% in full screen. On the other hand PowerDVD take about 20% regardless of display size. I use laptops so I'm stuck with my video setup. So on my next system I'll have to pay attention to what video cards play well with Flash. What I have now is an ATI Radeon Express 1150. Evidently Flash is not using it well. My display info says I have 128M on the vid card but that it is also using 700M of shared mem. So does that mean if I had 1G on the video card it wouldn't need to use shared and that might help the problem? Thanks, Tom Hi Tom, You don't say what laptop you are using, but on my HP Pavilion dv8100cto, I can go into the BIOS and turn off the 'shared' memory and ONLY use the card's onboard VRAM. When I did that my video performance increased dramatically (especially when using Photoshop CS3). Sincerely, C.Joseph Drayton, Ph.D. AS&T CSD Computer Services Web site: http://csdcs.site90.net/ E-mail: |
#6
|
|||
|
|||
one app gives smooth video, one gives jerky
njem wrote:
On Nov 1, 1:43 am, Paul wrote: http://www.adobe.com/products/flashp...eqs/index.html Paul Thanks for the info. So Flash is the culprit. It only takes 3-5% on yours? I tried that on mine. Flash takes about 50% in small mode and maybe 60% in full screen. On the other hand PowerDVD take about 20% regardless of display size. I use laptops so I'm stuck with my video setup. So on my next system I'll have to pay attention to what video cards play well with Flash. What I have now is an ATI Radeon Express 1150. Evidently Flash is not using it well. My display info says I have 128M on the vid card but that it is also using 700M of shared mem. So does that mean if I had 1G on the video card it wouldn't need to use shared and that might help the problem? Thanks, Tom If you want to try the test I tried, it is here. A 50MB download. Open the fullScreenSourceRectDemo.html file in a Flash enabled browser. I found the playback at normal resolution to not be that taxing at all. http://download.macromedia.com/pub/l...creen_demo.zip After looking through pages of marketing fluff, it looks like your Xpress 1150 core isn't that much different than the video card I used for my test. At least, my card has the same version of vertex and pixel shaders, as your 1150. I think your GPU uses shared memory for everything. It could be, that a fixed allocation of 128MB is used for the normal things, such as frame buffers and the like. If you were to start a 3D game, it can use more shared memory for textures, up to some maximum amount that might be determined by the quantity of system memory installed. That memory would be released when you exited the game. But the 128MB (or whatever you set for sharing in the BIOS), might remain that way for as long as the OS is running. So part of the sharing is static, and the other part dynamic. So you might not have that much more for video acceleration than I have. The single most important thing for video playback, in broad terms, is how modern the GPU is. The features here, might be more concerned with movie playback, but you never know, some day Flash may catch up. http://en.wikipedia.org/wiki/Unified_Video_Decoder http://en.wikipedia.org/wiki/Purevideo Paul |
#7
|
|||
|
|||
one app gives smooth video, one gives jerky
On Nov 1, 6:47*pm, "C.Joseph Drayton"
wrote: You don't say what laptop you are using, but on my HP Pavilion dv8100cto, I can go into the BIOS and turn off the 'shared' memory and ONLY use the card's onboard VRAM. When I did that my video performance increased dramatically (especially when using Photoshop CS3). Mine is a Dell. It does not have that option. That's interesting. I can see there would be some trade-off in sharing memory but, in my system, it provides about 6 times the memory. I guess that also indicates the need for a lot of video memory. If I can't turn off sharing then I would want it to not need to share any more then necessary. Tom |
#8
|
|||
|
|||
one app gives smooth video, one gives jerky
njem wrote:
On Nov 1, 6:47 pm, "C.Joseph wrote: You don't say what laptop you are using, but on my HP Pavilion dv8100cto, I can go into the BIOS and turn off the 'shared' memory and ONLY use the card's onboard VRAM. When I did that my video performance increased dramatically (especially when using Photoshop CS3). Mine is a Dell. It does not have that option. That's interesting. I can see there would be some trade-off in sharing memory but, in my system, it provides about 6 times the memory. I guess that also indicates the need for a lot of video memory. If I can't turn off sharing then I would want it to not need to share any more then necessary. Tom Hi Tom, I think that my old Pavilion zd8214 also used an ATI card and you could set the resources from within the driver screen. If I remember right it there was an 'Advanced' button on the 'Settings' tab that you clicked to get to things like resources. Sincerely, C.Joseph Drayton, Ph.D. AS&T CSD Computer Services Web site: http://csdcs.site90.net/ E-mail: |
#9
|
|||
|
|||
one app gives smooth video, one gives jerky
On Nov 2, 12:05*am, Paul wrote:
If you want to try the test I tried, it is here. A 50MB download. Curious. Mine uses about 25% of processor when viewing that in small size. It doesn't show any increase in full screen. It is a little jerkier in full screen though. Very smooth in small. My bios doesn't give any control of memory sharing. The single most important thing for video playback, in broad terms, is how modern the GPU is. The features here, might be more concerned with movie playback, but you never know, some day Flash may catch up. The GPU seems to be good enough if Flash would use it, since Power DVD does fine with it. I notice one of the links you sent says PowerDVD makes use of that GPU feature. If TV over the internet is going to become the standard, and if Flash is going to continue to be the most common delivery, they'd better catch up. If you like the video you linked to you'll like one about skydiving using a body suit. Kind of like a flying squirrel. They go more forward than down. Here's some great footage as thanks. http://www.ted.com/talks/lang/eng/ue..._jumping..html |
Thread Tools | |
Display Modes | |
|
|