(2014-05-23, 16:00)belongamick Wrote: Just in case this fixes the issue for anyone else.

I had av sync issues with 24p content for the longest time - but for me it was resolved in 13.0. BUT ONLY if I use these settings:

enable adjust display refresh rate to match playback
and enable Sync Playback to Display
and use A/V Sync method Audio Clock

I am bistreaming audio to my Yamaha AMP using wasapi.

If I disable A/V Sync then the issue comes back.

Pressing o during playback shows a missed counter which increments by 1 or 2 per hour, or if I pause it runaway increments until I resume playback.

I'm using an AMD 5450 graphics card.

(2014-05-11, 21:29)FernetMenta Wrote: could you try this build and post log: http://mirrors.xbmc.org/test-builds/win32/XBMCSetup-20140510-20c1fe5-win32.exe

(2014-05-23, 16:00)belongamick Wrote: Just in case this fixes the issue for anyone else.

I had av sync issues with 24p content for the longest time - but for me it was resolved in 13.0. BUT ONLY if I use these settings:

enable adjust display refresh rate to match playback
and enable Sync Playback to Display
and use A/V Sync method Audio Clock

I am bistreaming audio to my Yamaha AMP using wasapi.

If I disable A/V Sync then the issue comes back.

Pressing o during playback shows a missed counter which increments by 1 or 2 per hour, or if I pause it runaway increments until I resume playback.

I'm using an AMD 5450 graphics card.

(2014-05-25, 02:28)dustobub Wrote: I gave this a shot with the Disney Wow calibration disc (good resource for AV sync testing) and was not able to detect any difference from a vanilla Gotham build. My setup requires about 125ms delay when displaying at 24hz (xbmc adjusting display).

FernetMenta, did this build contain a possible fix, or just instrumentation for logging?

Happy to do some more testing. Having a calibration video makes it a lot easier than staring at people speaking.

-Dustin

• MKV files usually need a different audio delay than MPEG-TS (live TV) or AVI of the same frame rate, while the difference between most MKV files of the same frame rate is usually negligible (after rewinding/fast-forwarding at least, see above)
  
• On the other hand, 24p YouTube streams need about 200ms longer audio delay than non-YouTube 24p MP4 files.

• My TV doesn't report A/V delay via EDID. Its frame rate specific delays are set to the best of my knowledge via advancedsettings.xml <latency>.
  
• I'm using WASAPI "best match" for audio output.
  
• I'm using true full screen with "sync playback to display" set to "video clock (resample audio)" as all other settings are causing stuttering for me.
  
• "Change display rate to match video" is set to "always" with overrides specified via advancedsettings.xml <adjustrefreshrate>

(2014-05-28, 19:36)FernetMenta Wrote: Do you see any a/v error or video sync error indicated on the codec screen (o-key) ?

(2014-06-01, 08:20)Karnis Wrote: This has been driving me nuts from day one of XBMC, starting with Frodo & continuing thru Gotham 13.0. After a lot of experimentation, I finally found a combo that seems to work for blu ray MKV 24p playback & I'd thought I'd pass it on.

Windows 7, Intel HD graphics 9.17.10.2932, HDMI out to Denon 3310 receiver, Sharp 1080p 70"

Display resolution is set to 1920x1080, 59.97 Hz

Make sure you are NOT using an Windows AERO theme desktop.

XBMC settings:

Vertical sync =off
Use windowed fullscreen instead of true fullscreen
audio set up:
audio output device = direct sound HDMI
wasapi HDMI passthru
video playback settings:
adjust display to match video refresh rate= on stop /start, delay = 3 seconds (this is because it takes my display a few seconds to display after a resolution/ refresh rate change)
sync playback to display=on
sync method= audio clock
render method= dxva, hardware accelerated

Smooth playback on 24p material, 0% errors after about 10 seconds or so of playback, on True HD or DTS master audio HD soundracks.

Vertical sync= on also produces smooth playback with good audio sync during movie & after chapter changes. In both instances, audio errors zero out in about 8-10 seconds & maintain a solid zero.
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True fullscreen, vertical sync =on, temporal audio sync issues in True HD, waaaayy off with DTS MA, both on start up & chapter changes.

True fullscreen, vertical sync = off, smooth playback but audio takes longer to lock in on start up & after chapter change, both audio formats. Doesn't seem as locked in to me.
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If an AERO desktop is used, that's when things go wacky.

Same windowed settings as above, playing a DTS MA movie like ALIENS, frame rate is reduced drastically. Same reults with True HD like Dark Knight.

Enabling vertical sync yields same results with True HD or DTS MA.

Using True fullscreen, vertical sync on, True HD & DTS MA both lose sync after chapter change, major errors

True fullscreen, vertical sync off= stuttering playback, audio errors jumping around with True HD. loss of audio sync after chapter changes using DTS MA.
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In summary, on my system, I get the best results playing in a fullscreen window as opposed to true fullscreen, and Windows AREO desktop should be avoided.