MP1 EVR Presenter/dshowhelper community development (10 Viewers)

[angie05]

Hi Owlsroost! Thank you for al your hard work over here.

I have tried all your DLL's but HDTV keeps stuttering. No problems though with SDTV and all kind of other video's, even up to FullHD. Finally I thought to start in debug mode to produce some logs, because I am getting a bit angry on my HTPC when watching HDTV. Maybe you can find some time to have a look at my logs.

Not really the correct thread for this, but I think a 9400GT is not powerful enough for 1080i video to a 1920 x 1080 display. It's the hardware de-interlacing load that is the problem - that's why 1080p video is OK, but 1080i (e.g. HDTV) stutters.

Tony

I have the same problem with most 1080i video and v0037 dll. terrible stuttering (system with HD6870, AMD6x4GHz)

but if i hit pause and resume a few times the playback finally gets smooth with no more droped frames.

 

[tourettes]

Hi Owlsroost! Thank you for al your hard work over here.

I have tried all your DLL's but HDTV keeps stuttering. No problems though with SDTV and all kind of other video's, even up to FullHD. Finally I thought to start in debug mode to produce some logs, because I am getting a bit angry on my HTPC when watching HDTV. Maybe you can find some time to have a look at my logs.

Not really the correct thread for this, but I think a 9400GT is not powerful enough for 1080i video to a 1920 x 1080 display. It's the hardware de-interlacing load that is the problem - that's why 1080p video is OK, but 1080i (e.g. HDTV) stutters.

Tony

I have the same problem with most 1080i video and v0037 dll. terrible stuttering (system with HD6870, AMD6x4GHz)

but if i hit pause and resume a few times the playback finally gets smooth with no more droped frames.

Sounds like you are experiencing bad v-sync target that the EVR mixer can cause (it will basicly pick up a random position). MP audio renderer (which is currently beta) is able to solve that specific issue, so it is worth to try if it helps: https://forum.team-mediaportal.com/...renderer-better-video-playback-quality-84441/

 

[Owlsroost]

I recently upgraded my video card to an nVidia GT430 and started to have major issues with the 'render time' (green line on the render stats screen) flipping randomly between a short time (~4ms) and a long time (~18ms) - and dropping many more frames than my old 9500GT....

So I started to dig around and try a few changes to the DWM (desktop window manger) settings - discovered that using the 'DwmSetPresentParameters' function to increase the number of buffers and enable 'queued' presentation mode fixed the problems.

Attached is a new version of the dshowhelper (v0056) with these changes incorporated if anyone would like to try it out

Tony

 

[disaster123]

AW: MP1 EVR Presenter/dshowhelper community development

Owlsroost
will there also be version comp. with the mp audio renderer?

 

[romuz]

Im just switched to GT430 passive cooled too
Nice to hear that dshowhelped dev uses it too

 

[peque]

Good! I'm also using nVidia GTseries (240 in my case). I'll give it a try.

 

[Snader]

I will try with the GT220

 

[Owlsroost]

Re: AW: MP1 EVR Presenter/dshowhelper community development

@Owlsroost
will there also be version comp. with the mp audio renderer?

This version should be compatible with the MP Audio Renderer ver_20 (to make it easier for people to try).

Tony

 

[tourettes]

So I started to dig around and try a few changes to the DWM (destop window manger) settings - discovered that using 'DwmSetPresentParameters' function to increase the number of buffers and enable 'queued' presentation mode fixed the problems.

As a side effect it will introduce A/V sync issue. But it can be fixed partly by either changing the audio delay in renderer or in audio decoder. How many frames you are buffering?

Partly because 1:2 and 1:1 would need different amount of delay.

 

[Owlsroost]

So I started to dig around and try a few changes to the DWM (destop window manger) settings - discovered that using 'DwmSetPresentParameters' function to increase the number of buffers and enable 'queued' presentation mode fixed the problems.

As a side effect it will introduce A/V sync issue. But it can be fixed partly by either changing the audio delay in renderer or in audio decoder. How many frames you are buffering?

Partly because 1:2 and 1:1 would need different amount of delay.

4 frames currently - the minimum allowed is 2, and it needs at least 3 to make a difference. I suspect the DWM buffers 2 frames anyway, so I think it's adding 2 frames of extra buffering to the default situation.

I haven't noticed any A/V sync problems so far.

Tony