LAV Filters - DirectShow Media Splitter and Decoders

[max79]

SUPPORT REQUEST - #34

@Nevcairiel
LAVSplitter ignore information written after "-" character in CUE-chapters. Example:
https://feeds.soundcloud.com/stream/339564921-yannickburky-electromix-120.m4a

Any feedback would be appreciated.

[max79]

SUPPORT REQUEST - #35

@Nevcairiel
Starting from LAV_v0.73.1-28(I have no such issue on v0.73.1-19 and older) i got live stream issues: playback stops right after approx 8-10minutes for two hundreds HLS-streams from yandex.ru site. Example(Geo block. Only for Russia):
https://strm.yandex.ru/kal/rt_hd/rt_hd0.m3u8

Any feedback would be appreciated.

UPDATE: Fixed in LAVFilters_v0.74.1-108!

[max79]

@Nevcairiel
LAVVideoDecoder[Native & Copy-back modes]_v0.74.1-32 in Win7(x64) on NVidia GeForce GTX1650 card with latest drivers gives artifacts issues. if this OS is still supported by you, I can describe the problem in details with a UHD HEVC-10 video short example.

UPDATE: Fixed in v0.74.1-87 and newer!

[VictorLS]

Can anyone confirm new H.265 4K SAT channel Mooz 4K (here's my record 20201031-170739_Mooz 4K.ts (56 MB) https://yadi.sk/d/NngfIFAIVyK-hQ ) with LAV Video Decoder 0.74.1-75 (I didn't test earlier versions) as minimum on nVIDIA's videocards GM206 and newer can't be accelerated with DXVA2 (native and copy-back) or gives artifacts in Win7x64? With CUVID hardware acceleration works well. MPC-BE, Cyberlink and MainConcept accelerates via DXVA2 well too.
Corrected in 0.74.1-87 - thanks.

[max79]

Corrected in 0.74.1-87 - thanks.

My message #24298 was about exactly the same issue!

[max79]

SUPPORT REQUEST - #36

@Nevcairiel
Starting from LAVSplitter_v0.74.1-34 i got issues after seeking to the beginning on HLS VideosOnDemand, now playback is starting but in fact, frames are output that do not correspond to the beginning position, but those that were at the time that was before the rewind to the beginning. On v0.74.1-32 and older LAV version I have differ behavior, it just didn't start to play media(i didn't hear sound and see only one frame that were at the time that was before the rewind to the beginning. And I liked this behavior better), example:
http://demo.unified-streaming.com/video/machete/machete.ism/machete.m3u8

Seems it looks like something similar with the problem here:
https://github.com/Nevcairiel/LAVFilters/issues/306

Any feedback would be appreciated.

UPDATE: Fixed in v0.74.1-98 and newer!

[clsid]

Reverting 9fbf56d (https://github.com/Nevcairiel/LAVFilters/commit/9fbf56df5b1c5cc3e9fb4ad46f5164148d9efd95) does fix that seek issue.

[max79]

Reverting 9fbf56d (https://github.com/Nevcairiel/LAVFilters/commit/9fbf56df5b1c5cc3e9fb4ad46f5164148d9efd95) does fix that seek issue.
@clsid
Awesome. Thank you!

[nevcairiel]

Reverting 9fbf56d (https://github.com/Nevcairiel/LAVFilters/commit/9fbf56df5b1c5cc3e9fb4ad46f5164148d9efd95) does fix that seek issue.

There is a reason for this check. Reverting it just breaks other cases to fix one thing, instead of investigating why it fails. Which case is more important, the one the complained the most recent? :)

[gfxnow]

Why no new release in 2 years despite so much activity here?

[Klaus1189]

Is there a new nightly available for the recent commits? I only know: https://files.1f0.de/lavf/nightly/

[jkauff]

The latest version of MPC-HC (1.9.10) includes a current build of LAV. Also, most of the codec packs (like K-Lite) do their own builds from the nightlies. Or you can build your own, of course.

[mzso]

d3d11-native is the fastest (https://forum.doom9.org/showthread.php?t=176642).

For heavens sake...
It seems to have a decent improvement in seeking performance, but there's no deinterlacing anymore. madVR wouldn't deinterlace with dxva11 it seems. Why?

And LAV is only ever willing to use HW deinterlacing with CUVID, and won't use software deinterlacing. Super annoying that deinterlacing is always a problem with LAV+madVR.

[el Filou]

madshi didn't implement it. Probably considered not high priority.
I would like D3D11 deinterlace with NVIDIA but then D3D11 decode causes many issues in MediaPortal so would mean even more debug. :(

[huhn]

mpcVR does this fine it just a problem with madVR.

[Klaus1189]

The latest version of MPC-HC (1.9.10) includes a current build of LAV. Also, most of the codec packs (like K-Lite) do their own builds from the nightlies. Or you can build your own, of course.

I am a MPC-BE user and do not want to install a codecpack on my system. Compiling myself is to high for me.
I am only a video guy, not a programming guy :(

@nevcairiel:
I beg on my knees for a nightly build ;) Please Nev :)

[VBB]

@jkauff - I'm sure Klaus meant the commits from yesterday. The last nightly is from 12/6/2020.

Commits on Feb 26, 2021

Update ffmpeg

Update ffmpeg for HLS seeking fix

Add Ampere to SM->Core mapping

Support ProRes4444XQ

Fix codec ID to check for ASS style changes

Change H.264 Level 6 check to check actual number of ref frames, instead of the level

[max79]

@nevcairiel:
I'm also like everyone else waiting for the nightly build ;) Please Nev :)

[mzso]

mpcVR does this fine it just a problem with madVR.

Which variant of MPC? Can it be installed system-wide? (provided any app can even use it.)

Edit:
Never mind. I found it on github as a separate filter. It doesn't work with the tuner app though, and only there I have interlaced video. Out of curiosity had a look at it in PotPlayer. The output became too dark with a lot of detail swallowed.

[clsid]

The latest release build of MPCVR is a bit buggy. Try with the nightly build:
https://yadi.sk/d/X0EVMKP4TcmnHQ

[mzso]

The latest release build of MPCVR is a bit buggy. Try with the nightly build:
https://yadi.sk/d/X0EVMKP4TcmnHQ

Works identically. With "Use Directx 11" it produces abnormally dark picture.

[clsid]

Press Ctrl+J to show the renderer debug/statistics overlay and make a screenshot. Post that in the MPC-BE topic so that the developers can have a look at it.

[Shark007]

To use MPCVR you need to uncheck the 3 boxes in its settings.
Use for [NV12] [P010/P016] [Other supported formats]

its a bit convoluted.

[Klaus1189]

@jkauff - I'm sure Klaus meant the commits from yesterday. The last nightly is from 12/6/2020.

Exactly :)

[nevcairiel]

I've fixed the issue that prevented nightlys from being uploaded and future changes should hopefully result in new nightlys once again

I'm also planning on a release version in March.

[Klaus1189]

Yay :)

[VBB]

Thanks Nev! Always appreciated :)

[mzso]

To use MPCVR you need to uncheck the 3 boxes in its settings.
Use for [NV12] [P010/P016] [Other supported formats]

its a bit convoluted.

That disabled deinterlacing. So, I'm back right where I started.

[huhn]

with an AMD card?

[max79]

I'm also planning on a release version in March.
LAVFilters_v0.74.1-98 fixing this nightmare "seeking" issue. Thank you Nev!:thanks:

[mzso]

with an AMD card?

Yes. RX580

I wish LAV had a way to provide different preset/settings for particular apps. That would allow to work around my issues. I don't need HW decoding for measly 1080i AVC DVB streams, but I definitely need deinterlacing.

LAVFilters_v0.74.1-98 fixing this nightmare "seeking" issue. Thank you Nev!:thanks:

What's that about?

[max79]

What's that about?
https://github.com/Nevcairiel/LAVFilters/issues/306

[huhn]

Yes. RX580

I wish LAV had a way to provide different preset/settings for particular apps. That would allow to work around my issues. I don't need HW decoding for measly 1080i AVC DVB streams, but I definitely need deinterlacing.



What's that about?

the problem is that pretty much everything related to hardware stuff is pretty much broken on AMD.
calling it with lavfilter instead of a video renderer doesn't change that.

[mzso]

the problem is that pretty much everything related to hardware stuff is pretty much broken on AMD.
calling it with lavfilter instead of a video renderer doesn't change that.
Not quite. LAV+madVR produces proper image at least, but deinterlacing support is lacking.

[jkauff]

Not quite. LAV+madVR produces proper image at least, but deinterlacing support is lacking.
Nvidia Control Panel provides the option to deinterlace using Inverse Telecine. Doesn't AMD offer something similar?

[Klaus1189]

My RX480 does proper HW deinterlacing and the RX580 should be also ok, isn't it ok?

Nvidia Control Panel provides the option to deinterlace using Inverse Telecine

If I disable Inverse Telecine in Nvidia Control Panel HW deinterlacing still works. It is another feature.

[el Filou]

mzso would like to use D3D11 native hardware decoding (I assume probably for performance reasons with UHD) but madVR doesn't (yet? or won't ever?) support deinterlacing with D3D11, and as it's a DXVA native decoder there is no way to deinterlace in LAV itself as it must be managed by the renderer.
Not really LAV's fault, though.

[chros]

I wish LAV had a way to provide different preset/settings for particular apps. That would allow to work around my issues. I don't need HW decoding for measly 1080i AVC DVB streams, but I definitely need deinterlacing.

It sort of works with 2 MPC-HC (because it has LAV as internal filter) using ini files, or 1 HC and 1 BE.

Also, since LAV store its setting in registry, you can back it up as a reg file, and run the one you want before playback starts (e.g. from a bat file).

I'm not affected by this, in 2021 I don't watch any (!) interlaced content, that's why I use d3d11-native in LAV video.

[nevcairiel]

You can turn off HW decoding simply for AVC, as indeed any mediocre CPU should be able to handle that.

I might work on deinterlacing d3d11 native streams in the future, but thats a project a bit further down the list, and I barely get time to work on these.
First I want to work on re-envigorating CUVID and soem Blu-ray demuxing improvements. But thats after the next release.

[VBB]

That's exactly what I do. HW decoding only for HEVC, VP9, AV1. My 1st gen Core i7-920 handles everything else.

[huhn]

Not quite. LAV+madVR produces proper image at least, but deinterlacing support is lacking.

depends on other settings your card should be fine when scaling is also done with the hardware scaler which is not the case as soon as you are disabling the native formats.
madVR get's the image scaled.

d3d11 processing level are know to be broken for 5000 series to bad you have this issue to.

[clsid]

@mzso
Make a screenshot after pressing Ctrl+J.
Use the new AMD bug reporting tool to submit a description of the problem. And everyone else that can reproduce it should do the same. AMD does seem to work hard on improving drivers lately. But the main reason why some bugs are not getting fixed is the lack of (enough) proper detailed reports.

[huhn]

well i guess i just call them again and revive the over 1.5 year old ticket that got the answer "that doesn't seem important".
just hope other user here have more luck.

[Sven75]

Does anybody have an idea what could be the reason for the "flickering" in videos exported from presentations in PowerPoint when played back in MPC-BE (1.5.6 and 1.5.7), MPC-HC (1.9.10) with DXVA cb or native, D3D11 selected in LAV while software decoding works as expected?

I uploaded a simple demo file as well as a screen capture of the problem showing on one of my computers here:
https://www.sendspace.com/filegroup/zkYZ%2BOhLOfJamwiq22IVnA

It also happens in VLC player, but it will run fine using e. g. ffplay.exe (current ffmpeg build - maybe not surprising if ffplay is using software decoding by default).

It happens on Intel UHD 620 and on nVidia RTX 2080 with up to date drivers, but not if QuickSync is selected on the UHD 620 and CUVID on the RTX 2080.

Any help would be greatly appreciated.

[el Filou]

You can turn off HW decoding simply for AVC, as indeed any mediocre CPU should be able to handle that.There is a special use case where hardware decode of AVC can be useful even if the CPU can easily handle it and that is broadcast TV where the signal is sometimes wonky. The NVIDIA decoder especially is very good at gracefully handling errors in streams. I sometimes have very short dips of my TV signal, and when that happens HW decode is much better at not producing stutter, whereas software decode causes a big pause in the stream and it takes longer to get an image back. I don't know if mzso sometimes has issues with TV signal, but in my case it's useful and why I keep using hardware decode.

[VictorLS]

@el Filou
What namely nVIDIA's HW acceleration the best in your case?

[mzso]

Nvidia Control Panel provides the option to deinterlace using Inverse Telecine. Doesn't AMD offer something similar?

How does that even function across the various renderers, decoders?

@mzso
Make a screenshot after pressing Ctrl+J.
Use the new AMD bug reporting tool to submit a description of the problem. And everyone else that can reproduce it should do the same. AMD does seem to work hard on improving drivers lately. But the main reason why some bugs are not getting fixed is the lack of (enough) proper detailed reports.

But I don't know if it's an AMD bug. much less what exactly is happening.

My RX480 does proper HW deinterlacing and the RX580 should be also ok, isn't it ok?.

But with what renderer, or what circumstance? Obviously HW deinterlacing is done by the GPU. If it's initiated.

[huhn]

you can read more about this here: https://forum.doom9.org/showthread.php?t=176013

[mzso]

You can turn off HW decoding simply for AVC, as indeed any mediocre CPU should be able to handle that.

I might work on deinterlacing d3d11 native streams in the future, but thats a project a bit further down the list, and I barely get time to work on these.
First I want to work on re-envigorating CUVID and soem Blu-ray demuxing improvements. But thats after the next release.

I didn't think of that. Can't remember coming across UHD AVC streams, so it shouldn't be a problem.
So I guess SW deinterlacing would be used by LAV as normal. Though YADIF does have its limitations (https://streamable.com/d8xrrk ) I think I can live with it.
I might work on deinterlacing d3d11 native streams in the future, but thats a project a bit further down the list, and I barely get time to work on these.
First I want to work on re-envigorating CUVID and soem Blu-ray demuxing improvements. But thats after the next release.
Oh well, whenever deinterlacing support happens, happens.

[el Filou]

@el Filou
What namely nVIDIA's HW acceleration the best in your case?I don't think there is one that is best for every case, as each have limitations.
I use DXVA2 native for TV (smoother handling or errors in streams, better deinterlacing with madVR), DXVA2 copyback for SD/HD movies (no chroma loss with NVIDIA, allows madVR black bar detection to remove TV logos on 2.39 movies), and D3D11 native when I watch UHD (best performance and quality) which is not often.
I manually change between them with shortcuts to .reg files.How does that even function across the various renderers, decoders?The graphics driver's IVTC functionality works when using hardware deinterlacing and is transparent (you won't know it is working or not without advancing frame by frame during playback). NVIDIA has a checkbox to enable/disable it but AMD has removed all video processing options in their control panel so I guess it's always on? One never knows with AMD these days without testing.So I guess SW deinterlacing would be used by LAV as normal. Though YADIF does have its limitations I think I can live with it.If you use madVR, you can use hardware deinterlacing with software decoding, madVR will upload the frames to the GPU and then use DXVA deinterlacing. Of course this supposes your GPU drivers don't have bugs with deinterlacing.