[RESOLVED] DGMVCSource b22 and VC++2012

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Nico83500
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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by Nico83500 » Sat Feb 07, 2015 3:49 am

Many thanks, r0lZ is being to test and we'll tell you if it works !

r0lZ
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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by r0lZ » Sat Feb 07, 2015 5:22 am

Hi Don!

Unfortunately, the last release doesn't work at all, at least on my PC (without the magical Intel hardware).

I did 2 tests, both with "The Flying Swords of Dragon Gate 3D", because that BD has a few frames that cannot be properly decoded with DGMVCSource and FRIMSource and the Intel lib v5.14.4.28 (28/4/2014). The decoding problem is in the AVC stream at 1:23:35. Apparently, an i-frame cannot be decoded properly, and of course, the whole GOP is bad. The MVC frames are bad as well, since they depend of the AVC stream. As far as I know, it's a bug in the Intel library, not in the avisynth plugins. A similar bug is also present in Pacific Rim, as you know, but I don't have that BD3D and I can't test it.

The result of my test with your beta of GDMVCSource and the latest Intel lib (in SW mode) is extremely bad. All MVC frames are full of decoding problems. There is a sort of pixelisation, but also freezes and abrupt jumps. But there is at least one good point: the AVC stream is perfect everywhere, including in the Dragon Gate shot at 1:23:35. It's that fact that makes me think that that bug has been fixed by Intel. But I wonder why the MVC stream cannot be decoded properly.

I did another test, but this time I have replaced the new Intel lib with the old one (v5.14.4.28, 28/4/2014, that has been distributed with your old plugin and with FRIMSource). With that lib, the MVC stream is decoded properly, but of course, the Dragon Gate bug is still present.

The results of my tests are exactly identical than the results of the tests I did with the old version of the plugin and with the new version of the Intel lib. That means that your new plugin works exactly like the old one. Obviously, Intel has changed something that makes the new lib incompatible with the code you have used to load or call the lib. I know that it is possible to use it properly, because Pistacho's MVCSource works fine. It can decode the MVC stream properly, and the Dragon Gate bug doesn't happen. Pistacho has explained at D9 that he has modified his code to make it work with the new lib, but unfortunately, he has not explained exactly what he did. Perhaps you can contact him personally.

I can't help much more, but of course, I can test new betas if you wish. Anyway, thanks again for your plugin.

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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by admin » Sat Feb 07, 2015 7:14 am

OK, thank you for the test results. I'll look into it. But honestly, this is why I dropped DiAVC...they didn't like to bother maintaining backwards compatibility for existing applications. Now here we see the same. Compare it to nVidia's CUVID, where the only problem I ever had was that earlier cards were dropped for support. I shouldn't have to re-engineer my applications when a new library is released!

Is there anything my stuff is doing that pistacho is not? I ask because if there is no value added anymore, maybe there is no point.

Nico83500
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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by Nico83500 » Sat Feb 07, 2015 7:29 am

Thanks for your interest about this plugin :)

The mainly difference between both plugin is the license : your plugin is free to use and Pistacho's plugin need to install his full application in order to use only his plugin. I think others points are similars...

r0lZ
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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by r0lZ » Sun Feb 08, 2015 5:14 am

Yes, due to its license, Pistacho's plugin cannot be distributed with our applications, and the user needs to install a lot of other DLLs and decoders to use MVCSource. There is a risk of conflicting filters. Your plugin is much better for us. Also, I guess that you want to solve the problem for your more general decoding plugin as well. I understand how the lack of backward compatibility and support can be frustrating for you (and us), but I suppose that it should be possible to find the doc on how to adapt existing programs to the new version. Maybe on the Intel forums? I agree that nVidia does a better job, but afaik there is no free nVidia MVC decoder available.
Anyway, we'll grateful if you can have a look again. Thanks in advance. :-)

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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by admin » Sun Feb 08, 2015 8:46 am

Investigating...

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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by admin » Tue Feb 10, 2015 10:03 am

Everything is fine until the first call to m_pmfxDEC->DecodeFrameAsync(), which returns MFX_ERR_UNKNOWN.

I've posted a query about it at the INTEL forum.

r0lZ
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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by r0lZ » Tue Feb 10, 2015 10:57 am

Thanks for your investigation. I hope Intel will help.

Nico83500
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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by Nico83500 » Tue Feb 10, 2015 2:12 pm

Thanks Donald ! I've seen there is a response at the Intel forum, so it's better than last time :)

Perhaps you could find a solution with Intel forum help... I hope ;)

Edit : Not an issue of course but a solution ! Thanks r0lZ.

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Re: [RESOLVED] DGMVCSource b22 and VC++2012

Post by admin » Mon Feb 16, 2015 8:33 am

Oy. After posting the log I waited a few days for a reply but there was none. So I sent a private message to Tony to make sure he saw it and to ask what he thought. There has been no response. :?

So, I'm afraid things appear to be no different from last time.

Even the MPEG-2 decode error I found was never resolved. Finally, the reply was: "Yes, there does seem to be an error in the sample code." But they never followed up with a fix or other solution.

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