[mythtv-users] What is temporal spatial deinterlacing, and how do I get it?

[Jean-Yves Avenard]

Hi

2009/2/27 Brad Templeton <brad+myth at templetons.com<brad%2Bmyth at templetons.com>
>

> Hmm.  I tried using "Interlaced" with opengl -- I had not been aware
> that there were extra deinterlacers with opengl -- and all I get
> is:
>
>
Did you try adding the extra opengl deinterlacers and fixes written by Mark
Kendall for 0.21 fixes ?
http://www.btinternet.com/~mark_kendall/

(my vdpau patch include those opengl mod)

I had written a little report a while ago about those ; testing them all.

I too would get errors like:
2008-10-20 21:46:44.999 Failed to approve 'opengldoubleratekerneldeint'
deinterlacer
2008-10-20 21:46:44.999 Couldn't load deinterlace filter

but don't pay attention to them ; they are properly loaded but later on.

This is the video profile I would use with either my 9400GT or the 8600GT:
<= 720
standard Max CPU 2
opengl opengl2
Yadif (2x,HW)
Kernel HW

> 720
Standard MaxCPU 2
opengl opengl2
Kernel (2x, HW)
Greedy High Motion

I had great result with those ; 2nd best after VDPAU

Deinterlace with opengl:
LinearBlend (HW): 27% CPU, 82.2% idle, weird pixels are on during scrolling
on text, not too smooth
OneField (HW): 24%, 86.9% idle, rather smooth but it's obvious lines are
missing
Kernel (HW): 27%, 83% idle, no obvious interlacing artefacts, but text
scrolling not perfectly smooth
Bob(X2, HW): 42% CPU, 76% idle, smother than kernel  but obivious
interlacing artefacts (odd line more displaced than even on scrolling text)
LinearBlend(2X,HW): 56% CPU, 72.2% idle, very smooth scrolling text, but
weird pixels in text
One Field(2x, HW): 50%, 74.5% idle, smooth scroll, but like OneField(HW),
lines are missing, also like linearblend, some pixels in scrolled text
Kernel(2x, HW): 69% , 63% idle, smooth text, no obvious interlace artefacts
; slight flickering
After about 1 minute or so, CPU will jump to 116% usage for mythfrontend,
40% idle
If using one core only for decoding, usage is 116% and 33.8% idle
Interlaced (2X,HW), 38%, 81.2% idle, smooth text, interlacing artefacts
Yadif(2x, HW): 119%, 43.8% idle, lost frames seems to be a video at 3
frames/s at best. unwatchable
Yadif(hw): 114% CPU, 44% idle, like Yadif(2x,hw)

Linear Blend: 35% CPU, 81% idle. Text not perfectly smooth just okay slighly
jerky
Kernel: 31%, 84% idle, similar to linearblend, less jerky but slight blur on
scrolling text
Greedy High Motion: 45% CPU, 75% idle, scroll slightly jerky
Greedy High Motion(2x): 112%, 37% idle, very good, smooth, not interlace
artefacts
Yadif: 48%, 65% idle, no interlace artefacts, text slightly jerky (usage
jumps a lot to 75%)
Yadif(2x): 110% , 44% idle: skipping frames, unwatchable

None: 28%, 86% idle, smooth text, obvious interlace artefacts as expected
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