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Old 20th March 2011, 20:07   #1001  |  Link
nevcairiel
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Since i use my own splitter and decoder, and i have never seen such issues, i'll just say "cannot reproduce" :d
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Old 20th March 2011, 20:09   #1002  |  Link
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Known issue with jitter control. Seems like a bug in ffdshow.
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Old 20th March 2011, 20:13   #1003  |  Link
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I've always had jitter correction enabled in ffdshow, and i never noticed the problem. I also never saw the problem with my own decoder.

Sounds like something else, possibly a audio renderer thing thats just being triggered by that.
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Old 20th March 2011, 20:14   #1004  |  Link
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I've seen it reported before. Not sure what splitter was used before.
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Old 20th March 2011, 20:14   #1005  |  Link
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Quote:
Originally Posted by nevcairiel View Post
Since i use my own splitter and decoder, and i have never seen such issues, i'll just say "cannot reproduce" :d
So you simply don't have any dropped frames/jitter? Jitter/Avr. sync/std are on "0"?
Screnshot.
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Old 20th March 2011, 20:21   #1006  |  Link
nevcairiel
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Never dropped frames, except on some very weird movies i get one or two on load, but none in playback. Jitter is most of the time 0, sometimes (rarely) a value something below 10, but nothing that i ever noticed in playback (including the EVR-CP OSD graphs, perfectly smooth)

Oh, and do me a favor and shrink screenshots :P
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Old 20th March 2011, 20:24   #1007  |  Link
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Sounds like something else, possibly a audio renderer thing thats just being triggered by that.
I have ATI5770->Monitor HDMI connection. I just tested play it using my Audigy4 sound card. Result is the same.

Remove DTS track from MKV = no stutter.

It happend only on DTS + custom EVR.

Again, if i use simple EVR, playback is perfect:
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Old 20th March 2011, 20:31   #1008  |  Link
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ffdshow? MS DTV Decoder? Are you guys watching that much native video content? If not, I wonder how you could *not* use the DScaler5 IVTC Mod MPEG2 decoder.
PAL Land here, most playback is from progressive sources, and while Interlaced content watching is pretty limited it includes:
- Camcorder footage, DV-AVI (50i), HDV(25p in a 50i container), and AVC (50p)
- PAL DTV recordings (normally broadcast in 1080i or 576i @ 50hz) for Sort / Music Video
- Some NTSC based from US Discs etc (eg old eps of West Wing ripped by Chapters)
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Old 20th March 2011, 20:35   #1009  |  Link
nevcairiel
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Again, if i use simple EVR, playback is perfect:
Maybe you should bring that up with the renderer devs, then.. :d

As i said, i sometimes do see jitter with values < 10, but never dropped frames, and never any visual problems with the video.
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Old 20th March 2011, 20:37   #1010  |  Link
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Maybe you should bring that up with the renderer devs, then.. :d
I already did.
For example MePo dev wrote that this is audio decoder bug. I just trying to found the source of this issue :/

Only way i found how to fix it is to use ffdshow audio decoder with disabled jitter correction.
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Old 20th March 2011, 20:40   #1011  |  Link
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Does it happen with other splitters?

You already said it happened with ffdshow as well, but only with LAV Splitter?
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Old 20th March 2011, 20:43   #1012  |  Link
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Does it happen with other splitters?

You already said it happened with ffdshow as well, but only with LAV Splitter?
I tested MPC-HC and LAVF splitter, various combination of A/V decoders with the same result.
Only one thing helped - disabling jitter corection in ffdshow audio decoder - stuttering and droped frames are gone.
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Old 20th March 2011, 20:50   #1013  |  Link
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That's consistent with what was reported before. Search the ffdshow thread for jitter and you should find it.
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Old 20th March 2011, 20:50   #1014  |  Link
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@nevcairiel:

BTW, how hard will be to create modified LAVF audio decoder with disabled jitter corection for DTS - just for simple test?
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Old 20th March 2011, 20:51   #1015  |  Link
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I don't really have any active jitter correction in the LAV Audio Decoder .. i can produce a test build to disable on thing and see, but i don't think its relevant, but hey testing may help
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Old 20th March 2011, 20:55   #1016  |  Link
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Try this:
http://files.1f0.de/lavf/LAVFilters-...itter-test.zip
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Old 20th March 2011, 20:58   #1017  |  Link
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Hey, you did it, no stuttering any longer!
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Old 20th March 2011, 21:04   #1018  |  Link
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I'll have to run some tests if that has negative results for other files, but in theory it should not have.

Thinking about it, i'm not sure why i coded it like that.

If someone else wants, i would appreciate some tests using the version linked with various audio codecs, if you notice any problems.

Just to be sure you see it, here is the link again:
http://files.1f0.de/lavf/LAVFilters-...itter-test.zip
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Old 20th March 2011, 22:54   #1019  |  Link
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Running the jitter test ax now. Not noticed anything different so far, but I didn't have hoborg's problem in the first place.

On a different note, am I missing something regarding the new AC3 sub stream in TrueHD option? I've been testing the Dolby TrueHD Channel Check and another TrueHD sample from here, and I can hear the audio when the truehd 7.1 track is selected, and an AC3 5.1 track is exposed and tagged as [sub], but if I select that AC3 track I hear only silence. The LAV Audio status page shows constant full/maxed out bars on all 6 channels and 16-bit int under decode.

32-bit float output, channel mask looks right, 0x3f as with other AC3 5.1 tracks. Channels, sample rate, codec also looks OK in that status page.

Everything seems normal when the "normal" truehd track is selected.
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Old 20th March 2011, 22:57   #1020  |  Link
nevcairiel
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The substreams are not new, what is new is the option to hide them. Previously, i would just always show them.

Can you possibly try 0.18 and see if it works there? I might have an idea what could potential have broken it, but i cannot test right now.
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