[Bug 48769] Attack on Titan 2 can't play WMV3 video

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48769

Zebediah Figura <z.figura12 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |z.figura12 at gmail.com
            Summary|Attack on Titan 2 requires  |Attack on Titan 2 can't
                   |support for 64-bit codec    |play WMV3 video
                   |drivers                     |

--- Comment #3 from Zebediah Figura <z.figura12 at gmail.com> ---
This specific application wants to create the ASF reader manually but autoplug
from its pins.

The way this works on Windows is:

* the ASF reader filter, which lives in qasf and is implemented on top of
wmvcore, outputs compressed media samples;

* the CWMVDecMediaObject DMO (wrapped using the DMO wrapper filter), which
lives in wmvdecod.dll or wmvdmod.dll (depending on Windows version), decodes
the video.

This is true regardless of architecture, at least since XP and probably earlier
wmv9vcm isn't shipped with the OS. I'm not sure that bug 32723 is particularly
valid.

How we want this to work in Wine is less clear. We probably want to implement
the ASF reader on top of wmvcore. We *may* want it to output compressed media
samples, though I'm not sure that any application yet depends on this, and it
probably wouldn't be too difficult to correct if we did find one.

If we did output compressed media samples, we'd need a way to uncompress them.
Bug 34622 mentions that native .NET XNA creates the WMA decoder DMO manually.
(I'm not sure if it also creates the WMV decoder manually). That would probably
have to make use of gstreamer (which is directly wrapping libav for WMV/WMA
formats; I'm of the opinion that we should use libav directly, but better
maintainers than I have disagreed).

Since you're interested in making this work using native components, you
probably want `winetricks wmp9`. I think you'll also need native devenum, since
ours doesn't enumerate DMOs yet.

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