Heavy video pixelation on client screen (1 Viewer)
- Thread starter mayrog
- Start date
New Zealand
I have a modern netbook using the N2600 + GMA3650.
The GPU seems (sometimes) to dislike what LAV video decoder feeds it in DXVA mode, so I'd try another DXVA video decoder e.g. MS DTV-DVD or PowerDVD.
Also the GPU is not very powerful, so it's not really a good platform for MP (SDTV playback is OK, but HDTV drops lots of frames on my netbook).
Tony
The GPU seems (sometimes) to dislike what LAV video decoder feeds it in DXVA mode, so I'd try another DXVA video decoder e.g. MS DTV-DVD or PowerDVD.
Also the GPU is not very powerful, so it's not really a good platform for MP (SDTV playback is OK, but HDTV drops lots of frames on my netbook).
Tony
- Thread starter
- #13
Thanks for these comments.
In order to eliminate as many variables as possible I've now done the following:
1. Made another clean Win7 installation
2. Installed MP 1.2.3 Client (WITHOUT LAVF) and left all default configs unaltered
3. Copied a recorded TV file from the server HD to the Shuttle HD (to eliminate possible link questions)
4. Installed GraphStudio
GraphStudio showed the following when I loaded the copied .ts file
This file then played without problem in Windows Media Player
I then played the same file in MP (with Shift+1) and got the following
I presume that WMP would have used the MS DTV-DVD decoder as shown in the Graph. The MP screenshot confirms that it used the same decoder.
The Graph however shows a "Video Renderer" whereas MP shows "TsReader". Are these different things and could this explain why it plays ok in WMP but not in MP?
Do you see anything in the screenshot data that gives a clue to the problem?
(As I mentioned earlier I have tried different displays and the problem still persists - so I don't think it's in anyway display related)
Thanks again.
have you done this?
- Thread starter
- #15
Sorry, I'm not very expert in video matters. I've had trouble getting GraphStudio to work. When I go to "connect to remote graph" (with MP running) I do see a graph with a different hex number (which I presume is MP's arrangement) but when I select it and push "connect" nothing happens.
What I did do however was build a graph based on MS DTV-DVD decoders and EVR renderer (which the Shift+1 data shows MP is using in this case) and the .ts file played well in GraphStudio.
- Thread starter
- #16
Tony,
Just a comment in defence of the Shuttle XS35V3. The D2700 is a bit more powerful than the N2600, 2.1 vs 1.6 GHz and the video speed is 640 vs 400MHz.
While this still may not be ideal for HD the Shuttle does offer a lot of advantages as a client e.g. cheap price, very small size, passive cooling, HDMI connection, etc.
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Are the video files H264 or MPEG2 ?
If you can create a short recording (10-20s maybe) and upload it, I'll try playing it on my netbook (in MP 1.3.0 alpha) and see what happens.
Tony
If you can create a short recording (10-20s maybe) and upload it, I'll try playing it on my netbook (in MP 1.3.0 alpha) and see what happens.
Tony
- Thread starter
- #18
The .ts test clip I've been talking about in the earlier posts is MPEG.
The attached zip however contains an AVCHD camera clip plus a screenshot when I played a clip of the same type on MP 1.2.3.
These AVCHD clips all play quite satisfactorily in WMP on my Shuttle with the standard Win 7 codecs.
When I tried to play in MP1.2.3 it would not start at first, complaining (as I remember) that it lacked an audio decoder. I installed LAVF and it did play, but with the result shown in the screenshot.
I'll be interested to know how you get on.
Roger
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The clip plays OK on my netbook using MS DTV-DVD video decoder (just with low frame rate - approx 20 FPS - because the GPU isn't fast enough to handle the way MP renders to the screen) - no artifacts that I can see.
I also tried an MPEG2 SD clip - that also played OK.
Tony
I also tried an MPEG2 SD clip - that also played OK.
Tony
- Thread starter
- #20
Tony,
Just for info, my problem is fixed - can't claim I solved it but at least I did find the solution - a new Intel VGA driver, 8.14.8.1077 13/7/12, to replace the *.1065 which both Shuttle and Intel websites currently maintain is the latest driver for the GMA 3650. Now all video seems to play reasonably well on my XS35V3.
Since the Shuttle was playing video OK in WMP I felt that there had to be a problem in MP. I decided to try out XBMC to see if there was a graphic problem there - it was a mixed bag, XMBC did play the video ok but it had an annoying GUI flicker. I checked the XBMC forum and discovered that this was a known XS35V3/GMA3650 problem and the solution was the new driver which could be found with google. I updated and confirmed that it did fix the flicker in XBMC and, when I came back to look at MP I found that it had also fixed the artifact problem.
(Guess this means that I can stay with MP a bit longer - at least until the XBMC "Frodo" stable version, which will provide PVR fuctionality, is released.)
Roger
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