2014-09-12, 20:09
Hello Folks,
I've built a HTPC a while ago which i also use for gaming, the basic specs are:
Hardware:
* MSI AMD Radeon R7 260X GPU connected via HDMI to LG 42" TV
* Intel i3-4360T CPU
* B85 Mainboard (Asrock)
Software:
* Windows 8.1 OS
* latest Beta-driver from AMD
* XBMC 13.2 with MediaPortal TV Addon
99% of the time the system is used for DVB-S(2) playback, i'm running MediaPortal TV Server on a different machine, using XBMC 13.2 as the frontend. As most TV stations i watch deliver SD content, XBMC needs to deinterlace and upscale the content, and that's where the trouble starts
Problem No.1: As already mentioned in a different forum thread, AMD driver seems to deliver the most poor quality when it comes to deinterlacing, which seems to be true (Both DXVA-BOB and DXVA-Best are aweful!). So i've tried to uncheck the "Use DXVA2" checkbox to enable software based deinterlacers. Using the "Deinterlace" setting gave me very good quality, also for HD (1080i) TV stations the CPU load was at ~15% during playback, which is fine for me.
Concerning TV playback everything works fine with these settings, but it seems that these settings lead to
Problem No.2: playback from other sources (i.e. MKV files with 1080p24 content) leads to partial Video flickers and async audio/video playback (it seems that the longer the video runs, the higher the delay between audio and video gets - don't know if this is possible?).
I can only "correct" this by enabling the "Use DXVA2" checkbox, after this the videos playback is fine but of course leads me problem No. 1 again..
If anyone who may have experienced the same difficulties, i'd be glad on any hint you can give me on configuring the XBMC video settings to avoid both issues.
Note that I've disabled all "video enhancement" options of the AMD driver, as I've read that these options tend to make things worse..
Thanks in advance for any advice,
yours,
Juergen
I've built a HTPC a while ago which i also use for gaming, the basic specs are:
Hardware:
* MSI AMD Radeon R7 260X GPU connected via HDMI to LG 42" TV
* Intel i3-4360T CPU
* B85 Mainboard (Asrock)
Software:
* Windows 8.1 OS
* latest Beta-driver from AMD
* XBMC 13.2 with MediaPortal TV Addon
99% of the time the system is used for DVB-S(2) playback, i'm running MediaPortal TV Server on a different machine, using XBMC 13.2 as the frontend. As most TV stations i watch deliver SD content, XBMC needs to deinterlace and upscale the content, and that's where the trouble starts
Problem No.1: As already mentioned in a different forum thread, AMD driver seems to deliver the most poor quality when it comes to deinterlacing, which seems to be true (Both DXVA-BOB and DXVA-Best are aweful!). So i've tried to uncheck the "Use DXVA2" checkbox to enable software based deinterlacers. Using the "Deinterlace" setting gave me very good quality, also for HD (1080i) TV stations the CPU load was at ~15% during playback, which is fine for me.
Concerning TV playback everything works fine with these settings, but it seems that these settings lead to
Problem No.2: playback from other sources (i.e. MKV files with 1080p24 content) leads to partial Video flickers and async audio/video playback (it seems that the longer the video runs, the higher the delay between audio and video gets - don't know if this is possible?).
I can only "correct" this by enabling the "Use DXVA2" checkbox, after this the videos playback is fine but of course leads me problem No. 1 again..
If anyone who may have experienced the same difficulties, i'd be glad on any hint you can give me on configuring the XBMC video settings to avoid both issues.
Note that I've disabled all "video enhancement" options of the AMD driver, as I've read that these options tend to make things worse..
Thanks in advance for any advice,
yours,
Juergen