AV1 AOMedia decoder support for WMP on Windows 7

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AV1 AOMedia decoder support for WMP on Windows 7 Empty AV1 AOMedia decoder support for WMP on Windows 7

Post by NiTeCr4Lr on Tue Oct 15, 2019 12:37 am

Hey, i read in the changelog that AV1 is supported since 2018, but when i try to play a video with AV1 in Windows Media Player, WMP simply crashes.

AV1 AOMedia decoder support for WMP on Windows 7 NbedHYo

I'm using Windows 7 SP1 (plus all updates after)
K-Lite Codec Pack Version is 15.2.0 Basic
I use Windows Media Player for ALL my media.

I tried the dav1d builds (https://code.videolan.org/videolan/dav1d/pipelines) but i dont know how to properly instal them as they dont come with an installer.

Installed Codec log incase required;


Codec Tweak Tool | Log file | Generated at 2019-10-15 01:32:24

#####  System Information  #####

OS:           Windows 7 Ultimate (6.01.7601) (x64)
CPU name:     Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz
CPU details:  3504 MHz | 4 core(s) | Family 6 Model 94 Stepping 3
Memory:       16352 MB
Screen size:  1920x1080 (32bits) (60Hz)
GPU:          NVIDIA GeForce GTX 1060 6GB
             VendorID: 10de, DeviceID: 1c03
GPU memory:   6144 MB
GPU driver:   nvd3dumx.dll (Version 26.21.14.3086) (5-22-2019) (NV 430.86)
Audio device: Realtek High Definition Audio
             VendorID: 10ec, DeviceID: 0887
Audio driver: RTKVHD64.sys (Version 6.0.1.7560) (7-15-2015)

#####  K-Lite Codec Pack  #####

KLCP version: 15.2.0 (base 15.1.6)
KLCP type:    basic

Speaker conf: 2.0

#####  Decoder Settings #####

LAV Video:
H264=DXVA2CB HEVC=DXVA2CB VP9=DXVA2CB VC1=1 MPEG2=1 MPEG4=1 WMV3=0

LAV Audio:
MP3=1 AC3=1 DTS=1 DTSHD=1 EAC3=1 TRUEHD=1 AAC=1 Vorbis=1 LPCM=1 WMA=0

#####  DirectShow Filters (32-bit)  #####

Description:  SolveigMM VP8 Decoder
File name:    c:\program files (x86)\common files\solveig multimedia\smm_vp8decoder.ax
CLSID:        {1B05B1D2-15B6-41F1-B438-1803EF8C3FB0}
Merit:        00600000 = MERIT_NORMAL

Description:  SolveigMM Vorbis Decoder
File name:    c:\program files (x86)\common files\solveig multimedia\smm_vorbisdecoder.ax
CLSID:        {302F01F6-9284-4D73-98CB-A85BBD2AC6FB}
Merit:        00600000 = MERIT_NORMAL

Description:  SolveigMM FLV Demultiplexer
File name:    c:\program files (x86)\common files\solveig multimedia\smm_flvdemuxer.ax
CLSID:        {321A2C0D-60C1-4CAB-9432-5B97F528C95D}
Merit:        00600000 = MERIT_NORMAL

Description:  SolveigMM Matroska Splitter
File name:    c:\program files (x86)\common files\solveig multimedia\smm_mkvsplitter.ax
CLSID:        {5B00F980-F0B1-484B-ADE7-69408D9525F7}
Merit:        00600000 = MERIT_NORMAL

Description:  SolveigMM MP4 Demultiplexer
File name:    c:\program files (x86)\common files\solveig multimedia\smm_mp4demuxer.ax
CLSID:        {5F19B8FE-BA79-4183-B3CF-FEE4E8F801E4}
Merit:        00600000 = MERIT_NORMAL

Description:  SolveigMM File Source (Async)
File name:    c:\program files (x86)\common files\solveig multimedia\smm_filesourceasync.ax
CLSID:        {7E46F4C0-AA90-4D84-8548-E11BCE264834}
Merit:        00400000 = MERIT_UNLIKELY

Description:  SolveigMM AVI Splitter
File name:    c:\program files (x86)\common files\solveig multimedia\smm_avisplitter.ax
CLSID:        {C589E763-6942-43AA-8C5B-C501492AF638}
Merit:        00600000 = MERIT_NORMAL

(A total of 113 filters, 7 shown, 106 hidden)

#####  DirectShow Filters (64-bit)  #####

(A total of 79 filters, 0 shown, 79 hidden)

#####  ICM Class Manager (32-bit)  #####

(A total of 3 filters, 0 shown, 3 hidden)

#####  ICM Class Manager (64-bit)  #####

(A total of 2 filters, 0 shown, 2 hidden)

#####  Default source filters (32-bit)  #####

(A total of 43 default source filters, 0 shown, 43 hidden)

#####  Default source filters (64-bit)  #####

(A total of 55 default source filters, 0 shown, 55 hidden)

#####  ACM and VFW Codecs (32-bit)  #####

(A total of 14 codecs, 0 shown, 14 hidden)

#####  ACM and VFW Codecs (64-bit)  #####

(A total of 13 codecs, 0 shown, 13 hidden)

Thank you in advance for any help.

NiTeCr4Lr

Posts : 5
Join date : 2019-10-15

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by Admin on Tue Oct 15, 2019 4:09 pm

Try the 15.2.1 update. That contains a newer version of the dav1d decoder (as part of LAV Filters).

If that also crashes, then please tell me where to download the file that crashes. Then I can have it fixed.

The dav1d builds you looked for can't be used with WMP. That needs a DirectShow filter.

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by NiTeCr4Lr on Wed Oct 16, 2019 4:57 pm

Sadly still happens after the 15.2.1 update..

It's 1 (of multiple videos with AV1 i acquired straight from Youtube);

AV1 Sample

Ah yea, i'm not tot sure what is and isn't a DirectShow filter these days.
Things used to be as simple as registering an '.ax filetype' file back in the xvid days..

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by Admin on Thu Oct 17, 2019 4:34 pm

Confirmed.

Plays ok with 64-bit WMP. I will investigate further about the problem with 32-bit WMP.

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by NiTeCr4Lr on Thu Oct 17, 2019 6:48 pm

So it does! (x64 WMP) Thanks for the tip and all other help!

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by Admin on Thu Oct 17, 2019 7:09 pm

It turns out that 32-bit WMP sets the available stack space to a much lower value than the default value for Windows processes. It not large enough for the dav1d decoder to function properly. This is all very technical programming speak, so it is not something you need to understand. But short and simple story is that it currently won't work in 32-bit WMP. The developers of the dav1d decoder would not to change their implementation to use less stack space.

It does play in other 32-bit players. Benefit of using 64-bit WMP is also better decoding performance.

You can select 64-bit WMP as the default player during installation of K-Lite.

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by NiTeCr4Lr on Thu Oct 17, 2019 7:26 pm

Ah, i think i understand-ish.
I noticed the option when installing K_Lite, but there's no way to set the 64-bit WMP as default without reinstalling, though. Is there?

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by Admin on Thu Oct 17, 2019 7:42 pm

You don't need to do a full re-install. Just run the installer again and change the settings.

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by NiTeCr4Lr on Thu Oct 17, 2019 7:52 pm

Thank you very much!

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AV1 AOMedia decoder support for WMP on Windows 7 Empty Re: AV1 AOMedia decoder support for WMP on Windows 7

Post by Admin on Thu Oct 17, 2019 8:03 pm

The Codec Tweak Tool also has an option (in various tweaks) to make 64-bit WMP default. But that currently only affects its own standard file associations. In the future, it might also be made capable of modifying the additional file associations created by K-Lite.

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