LAV Filters - DirectShow Media Splitter and Decoders

[mparade]

Hello,

Decoding BD3D ISO files using LAV filters through JRiver doesn't seem to forward 3D information to madVR.
madVR recognizes the source as 2D (checked that by using the ctrl+J shortcut), consequently not the assigned "3D" profile is used.

"3D Blu-ray and MKV 3D decoding" is enabled in the Options menu of JRiver and have the latest JRiver and Nvidia drivers installed on my Win10 64 bit OS.

Could LAV filters/JRiver have problem with 3D content as ISO images?

Please help.

[nevcairiel]

ISO images cannot be played as such anyway, you need to mount them. And if you do, it should behave just fine.

[mparade]

Originally Posted by nevcairiel

ISO images cannot be played as such anyway, you need to mount them. And if you do, it should behave just fine.

Sure. JRiver does this job automatically (with some "window pop up problem" that could be avoided after installing VirtualClone Drive and AnyDVDHD). But, for me,
madVR still has no clue whether the source is 3D. It is played as 2D assigning my 2D madVR profile to it. Maybe some driver issue then.

[Heaud]

I am having issues getting this game recording to playback at 60FPS with the video decoder. It runs at the intended framerate with MPC-BE's internal decoder and uploading the video to YouTube has it running at the intended rate as well. Tool used to record was with the ingame video recording software.

clip: http://www113.zippyshare.com/v/d8BtOYNO/file.html

[el Filou]

What's your hardware, what's your renderer, and what decoder setting did you set in LAV config? What fps number is it reaching?

[Heaud]

Oh, right, I should mention my specs.

Radeon R9 380X
Ryzen 7 1700 OC 3.6ghz
LAV Filters 0.70.2 (default settings)
MPDN x64 2.49.0.3606 / MPC-BE x64 1.5.1 (built-in renderers)

What should be playing at a video rate of 60, it would run at 40 instead. With MPDN, it runs at 40 and needs to use LAV to decode. With MPC-BE, it runs as intended with the built-in filters and EVR (enabled by default) but disabling the internal filters and using LAV, the video would run at 40.

[el Filou]

I can't remember what the default LAV settings are.
Try to change "Hardware Decoder to use" in the LAV Video settings between None, DXVA2 (native), and DXVA2 (copy-back), to see if one works better.

Edit: this videos plays back at 60 fps with LAV on my system, but I noticed MediaInfo reports AVC High@L4, where 1920x1080x60 should be L4.2. Don't know if it could cause problems with some decoders.

[huhn]

try EVR CP with control+j it is played back at ~40 fps on mpc-hc and 60 on mpc-be

[el Filou]

Indeed.
And with system default EVR it is correctly played back at 60.

[el Filou]

@nevcairiel I may have found a bug: in 32-bit, LAV Video won't enable DXVA2 or D3D11 hardware decode for 8K (both HEVC and VP9), it always uses avcodec. (I use 32 bit for ReClock, and MediaPortal is 32-bit only too)
In 64 bit it does, and it also works in 32 bit with CUVID only.
I used this clip to test VP9 (downloaded from YT): https://drive.google.com/open?id=0B2...TdNTHRXWENuc00
and "8K_Ex_sample.mp4" in NikosD's benchmark samples to test HEVC.
1050 Ti driver 385.69, Windows 1703 64 bit.

Not really blocking but I thought I'd report anyway.

[nevcairiel]

Originally Posted by el Filou

@nevcairiel I may have found a bug: in 32-bit, LAV Video won't enable DXVA2 or D3D11 hardware decode for 8K (both HEVC and VP9), it always uses avcodec. (I use 32 bit for ReClock, and MediaPortal is 32-bit only too)
In 64 bit it does, and it also works in 32 bit with CUVID only.
I used this clip to test VP9 (downloaded from YT): https://drive.google.com/open?id=0B2...TdNTHRXWENuc00
and "8K_Ex_sample.mp4" in NikosD's benchmark samples to test HEVC.
1050 Ti driver 385.69, Windows 1703 64 bit.

Not really blocking but I thought I'd report anyway.

I'm not sure why, but the DXVA/D3D11 device just doesn't report a compatible configuration for those resolutions. Maybe its worried about running into memory limits.

[mclingo]

Originally Posted by mparade

Hello,

Decoding BD3D ISO files using LAV filters through JRiver doesn't seem to forward 3D information to madVR.
madVR recognizes the source as 2D (checked that by using the ctrl+J shortcut), consequently not the assigned "3D" profile is used.

"3D Blu-ray and MKV 3D decoding" is enabled in the Options menu of JRiver and have the latest JRiver and Nvidia drivers installed on my Win10 64 bit OS.

Could LAV filters/JRiver have problem with 3D content as ISO images?

Please help.

Plays fine on my system even without manually mounting beforehand, i am using MPC-BE.

if you are not getting 3D check you have turned on "enable FULL screen exclusive mode" in general settings in MADVR.

Also check you have set your LAV filters as external as the internals in the your player may not have the 3D filter in them. also check you have set your player to use MADVR as renderer.

PS - if you have a 4k system this will only work with 1080p modes in MADVR so make sure MADVR is refresh rate switching and you player starts in full screen.

PPS 3D (MVC) only works on Win 8.1 / WIn 10

[mclingo]

Originally Posted by nevcairiel

ISO images cannot be played as such anyway, you need to mount them. And if you do, it should behave just fine.

Yes you can, if you right click the ISO and choose to play with your player it works, works fine with MPC-BE using external filters and MADVR.

[nevcairiel]

Originally Posted by mclingo

Yes you can, if you right click the ISO and choose to play with your player it works, works fine with MPC-BE using external filters and MADVR.

Something needs to enable it, and LAV has no such feature. I have not tested any other components interacting with it.

Likely it'll just mount it for you, otherwise LAV couldn't access it (or LAV isnt used).

[mclingo]

Originally Posted by nevcairiel

Something needs to enable it, and LAV has no such feature. I have not tested any other components interacting with it.

Likely it'll just mount it for you, otherwise LAV couldn't access it (or LAV isnt used).

maybe so, I never checked, the main thing is you dont have to manually mount it first so it plays straight from MPC-BE, havent tried with with KODI-DS though.

I'm think of switching back to ISO instead of ripping all mine to MVC MKV files, its much more convenient to keep the full bluray ISO even if it is a few gigs larger.

[mark0077]

Hi guys,

Facing a strange problem, maybe theres an explanation. I have been playing the Dark Knight blu-ray, and I notice when I use "Mixing" to Stereo, at certain scenes (I'm playing about 1:17:30 to 1:18:30 when they fight in the tunnel) the audio becomes extremely distorted and crackly. I have tried with normalize matrix both on and off, and clipping protection on and off. It doesn't help. I have reduced LFE mix to 0 also. Center and Surround Mix are at 0.71. The crackling remains until I turn off Mixing.

One other strange thing which is whats baffling me. It only happens if I pick the truehd track. If I choose the ac3 48khz 5.1 track the audio is perfect and mixing works fine. Is there some way that truehd decoding plus the use of "Mixing" cause this distortion?

I have temporarily disabled Reclock and went with the MPC Renderer and then the Default audio renderer but the problem remains. Using 0.70.2 of LAV filters.

[nevcairiel]

The Dark Knight Blu-ray is notorious for having bad LFE mastering - without it being lowpassed (which LAV doesn't support), you get distortions if its included in a downmix.

[mark0077]

Oh wow yes just saw other posts about it. Thanks very much. I guess it has that crackling actually built into the lfe track at higher frequencies ( as opposed to be an artifact of the mixing ) but nobody noticed as it was being played back where low pass filters were removing it. Bad I could swear I could still hear it when setting LFE mix to 0 though. I'll retest that to be sure anyways. Thanks

[nevcairiel]

Its on my list of things to do to offer LFE lowpass filters. I should really get to that some time.

[aufkrawall]

ffmpeg 3.4 lists D3D11VA as a new feature. Was that beneficial for the implementation in LAV Filters? A long time ago you said that D3D11VA support would require a huge amount of work.