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AzzX
Senior Member
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Interesting observation about the ATI Driver producing the Green Screens.
With my ATI HD 4350 based HTPC, XBMC produces a Green Screen with any 1080p DXVA enabled material.
On the other hand with the same gfx card, The Boxee Beta plays back everything 1080p just fine with DXVA enabled, including direct ripped Blu-ray streams (str)
My other system which has a nVidia GTX 9800, both xbmc and Boxee play just fine though xbmc exhibits the green screen for a few seconds into a movie.
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Yeah, I've had my 4670 for over a year now and this is the first time in any DXVA/2 application that I've seen any green whatsoever (other than a flash when the display is initialized).
That being said, I'm probably going to move to an nVidia card when I replace this one anyways.
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No video at all on Win 7 x64 + Ati 5750 10.1. I get just a black screen for all 720p, 1080p mkv h264 files. Only thing that works are SD movies. Itried 20+ different movies in HD an none of them works - just black screen with sound and subtitles. GUI is ok. Any idea where is the problem?
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Note to self: postpone suicide.
Fantastic work, chaps. Can't thank you enough.
NS
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2010-02-03, 08:46
(This post was last modified: 2010-02-03, 09:05 by Balthazar2k4.)
So I did some testing of MP4 videos to see if I could understand why some work and others don't. I took a recent TV episode and compressed it using RipBot264 with the following x264 profile:
--level 3.1 --vbv-bufsize 1000 --vbv-maxrate 10000 --no-cabac --filter 0,0 --ref 3 --no-mixed-refs --bframes 0 --b-adapt 0 --no-weightb --direct auto --subme 7 --aq-mode 1 --trellis 0 --partitions p8x8,b8x8,i4x4,p4x4 --no-8x8dct --me umh --weightp 0 --profile baseline
This file would playback the video with a green screen. So I changed to this profile:
--level 4.0 --aud --nal-hrd --vbv-bufsize 25000 --vbv-maxrate 25000 --filter 0,0 --ref 3 --bframes 3 --b-adapt 1 --direct auto --subme 7 --aq-mode 1 --trellis 1 --partitions all --me umh --weightp 2
This file played fine. Now I am no video wizard by a long shot, but could the baseline profile be the problem?
Update: I made another file using the original 3.1 profile, but turning on CABAC to make it Main Profile and it still played with a green screen. I then turned back off CABAC and turned on 8x8DCT making the file High Profile and it played without a problem.
Update: I took the Level 4.0 profile that worked previously and turned off 8x8DCT and the resulting file played with a green screen. Evidently, 8x8DCT is what is affecting playback. That said, I haven't the faintest idea what that means in terms of fixing the problem...
Sony 75X940C, Yamaha RX-A3050, 2 x Martin Logan Motion 60XT, 1 x Martin Logan Motion 50XT, 2 x Martin Logan Motion FX, 4 x Martin Logan Motion 4, 2 x Rythmik FV15HP, Sony X800 UHD Player, Nvidia Shield TV
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