cmapa Posted January 24, 2007 Posted January 24, 2007 Hi. I having problem with 1080i content in h.264 over DVB-S2. My problem is that i'm getting 'lines' around fast moving objects in the video. The only way to remove this is to set the option 'force BOB' In this mode i ofen lose FPS from staddy 24.9 to around 22 and some times even lower. I try to contact Cyberlink but thay can't help me... I even try CoreAVC and that works even worse. 720p in h.264 works fine Anybody watching 1080i in h.264 and having the same problem? I'm runing DVBViewer 3.6.... Technotrend S2-3200 Cyberlink 7 codecs MotherBord Asus pw5 E6600 7600GS Forceware 93.71 Regards Quote
Zyknyp Posted January 25, 2007 Posted January 25, 2007 Overlay, VMR7 or VMR9? With Cyberlink and Bob mode on, my FPS are steady (E6400 and 7600GT) but with Overlay only (or VMR7). VMR9 doesn't work fine in current Nvidia drivers, and will likely lead to stuttering after a while. Quote
cmapa Posted January 26, 2007 Author Posted January 26, 2007 Overlay, VMR7 or VMR9?With Cyberlink and Bob mode on, my FPS are steady (E6400 and 7600GT) but with Overlay only (or VMR7). VMR9 doesn't work fine in current Nvidia drivers, and will likely lead to stuttering after a while. Sorry for that. I have tryed all above. And the best picture are in VRM9 The thing is that the BEST picture quality is when i have the option 'auto' i the codec. The 'force BOB' is not the best so i realy want to use 'auto' insted. But as i can read, you must also use the 'force Bob' to get the picture without 'lines' in fast mocving objects? Or? Regards Quote
Zyknyp Posted January 26, 2007 Posted January 26, 2007 If the codec was smart enough it could switch from BOB to Weave automatically as needed, but it's hard that the codec gets it right all the time, so you could end up with a scene needing BOB to be displayed with Weave etc. Sport shows need BOB most of the time, films, well it depends, some need little to no BOB at all... VMR9 probably has the best visual quality, but Nvidia drivers are buggy on that side and VMR9 tends to start stuttering after a while you're watching a channel. The time that it takes varies, it could take 5 minutes like 50, you never know in advance: it's very randomic, but pretty annoying. Quote
cmapa Posted January 26, 2007 Author Posted January 26, 2007 If the codec was smart enough it could switch from BOB to Weave automatically as needed, but it's hard that the codec gets it right all the time, so you could end up with a scene needing BOB to be displayed with Weave etc. Sport shows need BOB most of the time, films, well it depends, some need little to no BOB at all...VMR9 probably has the best visual quality, but Nvidia drivers are buggy on that side and VMR9 tends to start stuttering after a while you're watching a channel. The time that it takes varies, it could take 5 minutes like 50, you never know in advance: it's very randomic, but pretty annoying. This i my experince to. Sometimes i can watch a channel for a long time withot any stuttering, sometiems after minutes.. I sometimes think that my videocard (7600GS) was to slow for this action. But as i can se you have the GT-version that should be more powerfull. So to upgrade to an 7900GT or above should note give me any more. An another hand i have read that user with ATI videocard don´t have the same problem that we have. They have a smooth picture on all 1080i channels. Some user have moved to ATI when the experience this 'problems'. I don´t know if this is true but an input in this thread. Maybe som runing 1080i channels with ATI videocard who is reading this can conferm this? This is from another forum: Many people claim the best card for HTPCs is the 7600GT because it supports inverse telecine with HD 1080i content. The 7600GS is apparently not fast enough for inverse telecine. Inverse telecine is important for the best deinterlacing possible. It will give you the best quality. However, and what is really funny and kinda sad, is that most people with 7600GTs do not know that this feature is not turned on by default. There is a feature in the Nvidia control panel that turns it on. Here is a good article that explains it. However, this artilce fails to address HD 1080i content. All nvidia video cards can do inverse telecine for recorded SD content and DVDs so getting a 7600GT for that is a waste. I use a 7300LE and get great results. It was $50, passive, and can do all the same things as a 7600GT as long as I stick to SD or progressive scan content. PS: Have you cheked this in the sofware for your 7600GT? Reagrds Quote
Zyknyp Posted January 26, 2007 Posted January 26, 2007 (edited) Do you know what "inverse telecine" actually does? It's a reversed 3:2 pulldown: in short, it removes the 3:2 pulldown. I did try it though, but it's not meant for live TV viewing IMHO, watching SAT channels that is. I use Overlay as an output: a little less difinition than with VMR9, but better colours IMHO. It looks like the newer drivers set by Nvidia, the 97.xx, originally meant for the new cards like 8800 (series 8), are getting rid of the problem with VMR9. In fact I tried with a modified 97.xx driver that can be used with all series 7 card too, and I must say that VMR9 works muuuch better with this, but has unfortunately other quirks. Edited January 26, 2007 by Zyknyp Quote
cmapa Posted January 27, 2007 Author Posted January 27, 2007 Okey. Thanks for your input. You have tried a modify version of 93.71 ? were can i find this one? As i understand thats no ide to move to a better Nvidia card, i still gonna have this problem. A expensive "test" is to buy a ATI card for testing. As i understand the ATI drivers maybe are better for 1080i. Quote
Zyknyp Posted January 27, 2007 Posted January 27, 2007 I think it was the modified 97.92. Afaik, Nvidia cards accelerate in HW the H.264 HD streams more than ATi cards, but the latter don't have problems with VMR9 in truth. Quote
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