LAV Filters - DirectShow Media Splitter and Decoders

[wanezhiling]

If Win8 N version has WMVideo Decoder DMO, then LAVs WMV9 DMO decoder will work fine as well.

Sorry I have no N version.

[itsonlyjustincase]

Hi could you help me ? I have run CCLEANER and uninstalled all codecs. Then when i try to install LAV filters (last version) only the 64 bits are present (i verify with Win7DSFilterTweaker_5.7). It seems my win 8 pro (official) doesn't allow me to install 32 bits codecs anymore :s even if there is no error at the installation

[marc99]

Originally Posted by Aspeh

Good Question

Can any experts answer this as i'm looking to upgrade my XP machines to Win 8 and was thinking of getting the N version as well as it doesn't have any Media player installed.Or would i be better getting the standard Windows 8 pro version for the WMV9 DMO decoder WMV3 and VC-1 option ???

"Windows Media Feature Pack for Windows 7 N and for Windows 7 KN.
The Media Feature Pack for N and KN versions of Windows 8 will install Media Player and related technologies on a computer running Windows 8 N or Windows 8 KN editions."
http://www.microsoft.com/en-us/download/details.aspx?id=30685

[Aspeh]

Thanks for the reply's but it's not what i ment or what i think Blexley was asking either.

At the bottom of Lav Filters video configuration is Use Microsoft WMV9 DMO decoder WMV3 and VC-1

Would it be better to have Windows Media Player installed to use this Lav option?

[itsonlyjustincase]

Originally Posted by itsonlyjustincase

Hi could you help me ? I have run CCLEANER and uninstalled all codecs. Then when i try to install LAV filters (last version) only the 64 bits are present (i verify with Win7DSFilterTweaker_5.7). It seems my win 8 pro (official) doesn't allow me to install 32 bits codecs anymore :s even if there is no error at the installation

Someone ?

[Tornado15550]

I've heard that LAV dithers 10bit/14bit video (from a Hi10P or Hi444P file) down to 8bit.
Is this true?

[nevcairiel]

Only if its required, because your renderer doesn't support 10-bit content for example. Untouched is always preferred, but not always possible. If you use madVR, you should get untouched.

[aufkrawall]

afair libav supports Dxtory codec for some time now.
Could you add support for it in LAV, nev?

[nevcairiel]

Sample?

[aufkrawall]

Tomorrow, got not enough upload bandwidth today.

[blexley]

Originally Posted by Aspeh

Thanks for the reply's but it's not what i ment or what i think Blexley was asking either.

At the bottom of Lav Filters video configuration is Use Microsoft WMV9 DMO decoder WMV3 and VC-1

Would it be better to have Windows Media Player installed to use this Lav option?

Thankyou Aspeh that is exactly what i'm trying to get an answer for aswell.

Nevcairiel is always saying that Win XP is a problem yet when asked about a Lav filters setting for Windows 8 he rudely ignores people.

Go figure.

[sneaker_ger]

Originally Posted by blexley

Nevcairiel is always saying that Win XP is a problem yet when asked about a Lav filters setting for Windows 8 he rudely ignores people.

Or maybe he simply doesn't know the answer because he's not using Windows 8 N?

I remember reading that Windows 7 N does indeed not have the codecs in addition to not having the media player, so I would not get the N version. I don't know if this applies to Windows 8 as well.

[blexley]

That still doesn't answer the question as that is not what is being asked.

Is it better to use that option if available or is it not needed ?

If it's not needed or doesn't give any advantage over Lav filters for WMV9 DMO decoder WMV3 and VC-1 then you don't need mediaplayer installed.

A developer doesn't need a version of windows installed to know if an option is best used or not because knowing if it's best used or not then the rest can be worked out by ourselfs.?

Thanks

[Superb]

Geez.
If you have the DMO Decoder installed -> The option will work.
If you don't have the DMO Decoder installed -> Initializing the decoder will fail.

http://code.google.com/p/lavfilters/source/browse/decoder/LAVVideo/decoders/wmv9.cpp

  hr = CoCreateInstance(CLSID_CWMVDecMediaObject, NULL, CLSCTX_INPROC_SERVER, IID_IMediaObject, (void **)&m_pDMO);
  if (FAILED(hr)) {
    DbgLog((LOG_TRACE, 10, L"-> Failed to create DMO object"));
    return hr;
  }

Will it fall back to software? Probably. Didn't have a closer look at the code.

No one owes you any answers, and therefor it isn't rude to ignore you. Welcome to the internet.
Also, support given by nev in this thread is much better than MANY open source developers I've seen on the net... so don't b!tch. :P

[nevcairiel]

Originally Posted by Superb

Will it fall back to software? Probably. Didn't have a closer look at the code.

This is also "software". And no, there is no fallback. It'll refuse connection if the option is enabled and init fails.

In any case, LAVs default settings are the recommended settings (why would anything else be default?), you can figure it out from there.

[sneaker_ger]

Just because he develops LAV Filters does not mean he magically knows whether Windows 8 N has the things needed for these LAV Video options. You didn't ask whether these were "best used" or not. If Nev didn't think they were needed he wouldn't have added the function to LAV Video to utilize them and definitely wouldn't have activated them by default.

[Aspeh]

I'm not sure if you guys are just naturally rude and obnoxious or it's a case of Asperges.

Originally Posted by nevcairiel

In any case, LAVs default settings are the recommended settings (why would anything else be default?), you can figure it out from there.

How can anybody know apart from you if LAV can decode DMO without microsoft codecs and if this would be the default option if installed on a version of windows without mediaplyer.

Ridiculous to expect us to buy Windows 8 N to find out when you could just simply answer if Lav Filters prefers to use Windows Media DMO or not and without it if it would limit media playback.

No need for anyone to be a complete ass over it like media is some sort of leet club.

[nevcairiel]

If it didn't have any advantages, it wouldn't be the default.
So concluding from that, disabling it does give you disadvantages.

Obviously this option only works if the DMO decoder is present in your system. If this is the case on a "N" install? I don't know. Feel free to find out and report your findings.

You're the one being rude, there is no magic secrets here, just logical conclusions anyone can arrive at.

[blexley]

It doesn't say anywhere and you gave no indication that enabled was the default setting and was recommended.

That is what was being asked.

Sheeeeesh

[aufkrawall]

Here is one Dxtory sample:
http://www36.zippyshare.com/v/60688661/file.html

There can be also different colorspaces and compression.