SHIFT+1 - What do the lines mean? (1 Viewer)

[geoffw]

TV-Server Version: 1.1.0.0
MediaPortal Version: 1.1.0.0
MediaPortal Skin: StreamedMP 1.2.1.1553
Reception Quality: Outstanding (1800m line of sight with Transmitter)
Windows Version: W7 Ultimate
CPU Type: Intel Core 2 Duo 3.0GHZ E8400
HDD1: Raid 0 WD Green 1TB (2)
HDD2: WD Green 1.5TB (1)
HDD3: Ramdisk for Timeshifting 256MB
Memory: 4GB
Motherboard: Intel DG45ID
Video Card: Integrated Intel 4500HD
Video Card Driver: 8.15.10.2189
Sound Card: Intel High Def HDMI
Sound Card AC3: Intel High Def HDMI
Sound Card Driver: 6.1.7600.16385
Audio Render: Default Direct Sound Device
TV Card: Hauppauge WinTV-HVR-2200 (8980)
TV Card Driver: 7.6.1.27086
MPEG2 Video Codec: Cyberlink PDVD10
MPEG2 /AC3 Audio Codec: MPC - MPA Decoder Filter
h.264 Video Codec: Cyberlink PDVD10
AAC Codec Monogram
Satelite/CableTV Provider: Freeview NZ DVB-T
HTPC Case: Silverstone SG014
Remote: MCE Remote
TV: Samsung Series 6 40" Model LA40A650A1MXRD
TV - HTPC Connection: HDMI
Other Plugins 4TR, SAF5

Hey, I've got really good reception, good disks / CPU but still dropping frames. I reckon that the SHIFT+1 OSD graphs give some clue to my dropped frames- does anyone have a link that explains how to interpert the activity of these mysterious lines?

(Yellow tracks down over 20 secs then hits the bottom and jumps up to centre then starts tracking down again. Red is mostly stable and then sometimes looks like a big saw).

Cheers.

Geoff

 

[Cousin_Jerry]

I would love to know as well!

 

[Holzi]

I would love to see some lines at least. =(

 

[Pitscho]

it is described in the red text


afai remember

red: time per frame (25fps should be 40ms)
i think green was audio video time offset
yellow i dont remember, something monitor refreshrate <-> frame rate

 

[geoffw]

yeah, but how do you interpret them when you're seeing dropped frames? What clues do they give to root cause?

Suggestions appreciated.

gw

 

[Scythe42]

It's more for developers. It's a graphic representation of the various involved timings. For the average users anything beside dropped frames/painted frames/refresh rate/rate of the movie is of no interest at all.

There's no way that the graphs tell you a root cause. It's just easier to represent values in this way on the screen. It just takes up less space to draw graphs. If you work on video playback and try to change things and the graphs are getting jumpy after your last code change, you know you did something wrong.

The reason for a lot of dropped frames in general are: weak hardware or a bad codec choice.
In addition graphs can be very jumpy if frame rate doesn't match the refresh rate. But again this you can see without the graphs if the two don't match.

 

[kszabo]

Red is mostly stable and then sometimes looks like a big saw).

try to replace the dshowhelper.dll file with the v.0020 from this post:
https://forum.team-mediaportal.com/general-development-no-feature-request-here-48/mp1-evr-presenter-dshowhelper-community-development-81148/

it is in the Mediaportal installation directory (something like c:/program files/team mediaportal/mediaportal)
Do not forget to backup the original one before replacing.

If you have luck the dropped frames and "sawteeth" are gone!

 

[tourettes]

(Yellow tracks down over 20 secs then hits the bottom and jumps up to centre then starts tracking down again. Red is mostly stable and then sometimes looks like a big saw).

If graphs are looking like a sawtooth (not random, but systematic looking graphs) then most likely the source fps wont match the display's refresh rate. But as Scythe said, that information is available as well without the graphs.

 

[SiLenTYL]

when watching blu-ray type material i see the refresh rate is 24.00 hz...should it not be 23.976? is that a windows thing/graphics card/MP? i know that 24hz and 23.976 are different refresh rates...but i dont know if the system knows / acts differently ?

 

[wollo]

as far as I know BD is exactly 24 fps, don't think all tv's support that though. mediaportal audio renderer speeds my 24fps up to 25 to sort that too.