MediaPortal Audio renderer - better video playback quality (2 Viewers)

[GeYe]

AW: MediaPortal Audio renderer - better video playback quality

I have made more tests:

- activated OSD in ffdshow DXVA and it shows that it's using DXVA (CPU goes from 30% to 80% look at screenshot 3)
- graphstudio plays smooth without problems and shows also using of ffdshow DXVA, but stresses the CPU half as mediaportal do

edit:
I use the ffdshow version from latest saf 5 (FFDShow updated to rev.3624). Microsoft Decoder for Audio brings NO Sound out, i hear nothing, but it is smooth

 

[tourettes]

Re: AW: MediaPortal Audio renderer - better video playback quality

I have made more tests:

- activated OSD in ffdshow DXVA and it shows that it's using DXVA (CPU goes from 30% to 80% look at screenshot)
- graphstudio plays smooth without problems and shows also using of ffdshow DXVA, but stresses the CPU half as mediaportal do

80% is probably already too much for the dual core (I bet more than 50% is caused by video decoding). Could you try Windows 7 H.264 decoder? That at least works with Nvidia GT220 on that sample.

 

[GeYe]

AW: MediaPortal Audio renderer - better video playback quality

- PowerDVD-Codec has some stuttering in the beginning and heavy stuttering at the end. In the middle part it was perfect.
- Microsoft Codec was pretty the same as ffdshow.

edit:
- Added also a cpu-usage of normal ffdshow with direct audio renderer. It plays good, but the cpu usage is not as good as with graphstudio.

 

[edterbak]

GeYe,

I have a gut feeling it is ATI related.
Can you go in to your settings of CCC. To the "video" tab and then find the De-Interlacing section. Do you have it forced to Vector-Adaptive? If so, set it lower ( < adaptive) to see if that makes a difference. VA for a 5450 could be pushing the limit, but im not 100% sure. It should be capable, but not i.c.w. other enhancers as well... I think. Also in here, make sure you have all image improvers disabled (denoise/deblock). See if that helps.

What you can try to see if it is GPU (load) related. Start MP in windowed mode. Open your ATI CCC utility. Go to overdrive section. Here you see a graph of the temperature,GPUusage and MEMusage. See what happens there during playback. If DXVA is used, the gpu should have something to do. So a slight increase is expected. 2D destop = 0-10% activity, normal/clean DXVA (non de-interlacing) for a 5450 series should be ~30-50% I guess. If you give it too many tasks like de-interlacingstuff or image enhancers etc, you will see 90-100% very often.... and stutters.

If this totally isnt it, can you test if you see the issue only with this specific file? I will test the file on my system then, I have a comparable system I think.

[edit]
I had a look a the file you are trying to play. It is 1080i as in interlaced. It is likely a de-interlacing problem (too high quality setting).

 

[tourettes]

I had a look a the file you are trying to play. It is 1080i as in interlaced. It is likely a de-interlacing problem (too high quality setting).

I thought it was 1080p according to MediaInfo. But I could be wrong and so could be the MediaInfo. If it is really 1080i then most likely ATI does't have enough GPU power to do the deinterlacing when combined to the higher CPU load that the MP Audio Renderer produces (resampling / timestratching the audio is quite heavy task when compared to the default directsound audio renderer's CPU load).

 

[edterbak]

I had a look a the file you are trying to play. It is 1080i as in interlaced. It is likely a de-interlacing problem (too high quality setting).

I thought it was 1080p according to MediaInfo. But I could be wrong and so could be the MediaInfo. If it is really 1080i then most likely ATI does't have enough GPU power to do the deinterlacing when combined to the higher CPU load that the MP Audio Renderer produces (resampling / timestratching the audio is quite heavy task when compared to the default directsound audio renderer's CPU load).

I own an ATI and I can watch 1080i HDTV perfectly icw the MP audiorenderer.

GPU: ATI 5670
CPU: AMD Athlon X2 245e (2.8Ghz) Dualcore

 

[GeYe]

AW: MediaPortal Audio renderer - better video playback quality

ok guys. new tests.

Switch deinterlacing to BOB . All other enhancements was already before off. Tested again and it's the same stuttering.

Also downloaded gpu-z, because I have no overdrive section. GPU-Z shows values from 0% till 30% gpu usage with the sample file and bob. With Vector Deinterlacing GPU-Z shows values from 0% till 45%. I think the jumping of the gpu usage indicates also a problem.

Also the normal audio renderer shows not so many problems with the sample file. It is mostly at the beginning not 100% smooth and at the end i think also not 100% smooth. But much better than with mp audio renderer.

If you say my ATI 5450 has not enough performance, why is graphstudio showing the file absolutly smooth and a gpu usage of 80%. As many reviews showed a ATI 5450 should be enough for a htpc with normal full hd and vector adaptive deinterlacing (Low Profile: Radeon HD 5450 und 5570 : Videobeschleunigung - Review Hartware.net also the test are 1080p here).

Done a quick test with my workstation (Intel q6600, ATI 4850, MP 1.20 Alpha, ffdshow, mp audio renderer) and have the same stuttering problems. Also this system is not optimzed for this. Even must install new ffdshow codec to get the sample running and it is x64 bit. So may be here are some other problems.

Do you also have such big differences in cpu / gpu usage between Mediaportal and graphstudio.

 

[edterbak]

Re: AW: MediaPortal Audio renderer - better video playback quality

No, Im not saying that. I was only trying to tell Tourettes ATI is very much capable of doing so.

I tested the files myself. I downloaded 2 1080i files (Interlaced) and I see a rare judder. Audio is fine, no judder
Upon pressing start, It drops about 80 frames. During playback It drops one or two frames till the end.
I tested without the mediaportal renderer. It start off with ~110 droped frames and untill the end it looses about 4-5 extra ones.
So in my opinion, the renderer is working and causing less frame drops.
I do think the seen framedrops are caused by ATI, lack of proper support for some filetypes. Or ofcourse sensitive codecs

 

[tourettes]

Re: AW: MediaPortal Audio renderer - better video playback quality

Do you also have such big differences in cpu / gpu usage between Mediaportal and graphstudio.

To me this looks more general issue, not jsut audio renderer related - so the basic issue with the playback should be soved in some other thread and then if there is audio renderer related issue(s) left then those should be hanled is this thread. Please open a new thread about the issue.

Few notes:

1) You should be playing the test file with 59.94 Hz display mode - 60Hz is ok with MP Audio Renderer in use
2) CPU usage is way too high
3) It is normal to get dropped frames with 50 Hz and 29.97 fps material (happens here as well) - it is not ok to get dropped frames on 29.97 fps material on 59.94 Hz display (I don't see dropped frames with correct refresh rate in use).

 

[disaster123]

AW: MediaPortal Audio renderer - better video playback quality

I've seen that there were some recent changes to the dshowhelper in the trunk - but not in the audio renderer part. Is this correct?