[FFmpeg-devel,v2] Add MediaFoundation wrapper

Submitted by wm4 on April 4, 2017, 5:45 a.m.

Details

Message ID 20170404054541.22058-1-nfxjfg@googlemail.com
State New
Headers show

Commit Message

wm4 April 4, 2017, 5:45 a.m.
Can do audio decoding, audio encoding, video decoding, video encoding,
video HW encoding. I also had video HW decoding, but removed it for now,
as thw hwframes integration wasn't very sane.

Some of the MS codecs aren't well tested, and might not work properly.
---
Didn't actually test compilation again, but should be fine.
---
 configure              |   34 +
 libavcodec/Makefile    |    1 +
 libavcodec/allcodecs.c |   23 +
 libavcodec/mf.c        | 1951 ++++++++++++++++++++++++++++++++++++++++++++++++
 libavcodec/mf_utils.c  |  696 +++++++++++++++++
 libavcodec/mf_utils.h  |  200 +++++
 6 files changed, 2905 insertions(+)
 create mode 100644 libavcodec/mf.c
 create mode 100644 libavcodec/mf_utils.c
 create mode 100644 libavcodec/mf_utils.h

Comments

Carl Eugen Hoyos April 4, 2017, 10:09 a.m.
2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:

> +  --enable-mf              enable decoding via MediaFoundation [no]

Why is it not autodetected?

Carl Eugen
wm4 April 4, 2017, 10:41 a.m.
On Tue, 4 Apr 2017 12:09:23 +0200
Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:

> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> 
> > +  --enable-mf              enable decoding via MediaFoundation [no]  
> 
> Why is it not autodetected?

Do we want that?
Carl Eugen Hoyos April 4, 2017, 10:43 a.m.
2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> On Tue, 4 Apr 2017 12:09:23 +0200
> Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>
>> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>>
>> > +  --enable-mf              enable decoding via MediaFoundation [no]
>>
>> Why is it not autodetected?
>
> Do we want that?

Would autodetection break FFmpeg for anybody on Vista or newer?

Carl Eugen
wm4 April 4, 2017, 10:45 a.m.
On Tue, 4 Apr 2017 12:43:14 +0200
Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:

> 2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> > On Tue, 4 Apr 2017 12:09:23 +0200
> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> >  
> >> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> >>  
> >> > +  --enable-mf              enable decoding via MediaFoundation [no]  
> >>
> >> Why is it not autodetected?  
> >
> > Do we want that?  
> 
> Would autodetection break FFmpeg for anybody on Vista or newer?
> 

I don't know. You didn't answer my question.
Carl Eugen Hoyos April 4, 2017, 1:44 p.m.
2017-04-04 12:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> On Tue, 4 Apr 2017 12:43:14 +0200
> Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>
>> 2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>> > On Tue, 4 Apr 2017 12:09:23 +0200
>> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>> >
>> >> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>> >>
>> >> > +  --enable-mf              enable decoding via MediaFoundation [no]
>> >>
>> >> Why is it not autodetected?
>> >
>> > Do we want that?
>>
>> Would autodetection break FFmpeg for anybody on Vista or newer?
>>
>
> I don't know. You didn't answer my question.

Yes, I did.
We don't want to break distributed builds with the auto-detection.

Carl Eugen
Hendrik Leppkes April 4, 2017, 1:57 p.m.
On Tue, Apr 4, 2017 at 3:44 PM, Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> 2017-04-04 12:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>> On Tue, 4 Apr 2017 12:43:14 +0200
>> Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>>
>>> 2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>>> > On Tue, 4 Apr 2017 12:09:23 +0200
>>> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>>> >
>>> >> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>>> >>
>>> >> > +  --enable-mf              enable decoding via MediaFoundation [no]
>>> >>
>>> >> Why is it not autodetected?
>>> >
>>> > Do we want that?
>>>
>>> Would autodetection break FFmpeg for anybody on Vista or newer?
>>>
>>
>> I don't know. You didn't answer my question.
>
> Yes, I did.
> We don't want to break distributed builds with the auto-detection.
>

And its not auto-detected, so what exactly are we discussing? :)

- Hendrik
wm4 April 4, 2017, 2:04 p.m.
On Tue, 4 Apr 2017 15:44:29 +0200
Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:

> 2017-04-04 12:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> > On Tue, 4 Apr 2017 12:43:14 +0200
> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> >  
> >> 2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:  
> >> > On Tue, 4 Apr 2017 12:09:23 +0200
> >> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> >> >  
> >> >> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> >> >>  
> >> >> > +  --enable-mf              enable decoding via MediaFoundation [no]  
> >> >>
> >> >> Why is it not autodetected?  
> >> >
> >> > Do we want that?  
> >>
> >> Would autodetection break FFmpeg for anybody on Vista or newer?
> >>  
> >
> > I don't know. You didn't answer my question.  
> 
> Yes, I did.
> We don't want to break distributed builds with the auto-detection.

Can't see where you did.

This directly links some mfplat.dll functions, so as I understand, it'd
require at least Windows XP SP2 for libavcodec binaries to run. But I
can't test that. Also, build would almost surely fail with older
MinGW-w64 versions or original MinGW.

There, I've put way more effort into my reply than whatever you're
asking for (and which you could have found out yourself easily).
Carl Eugen Hoyos April 4, 2017, 2:30 p.m.
2017-04-04 16:04 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> On Tue, 4 Apr 2017 15:44:29 +0200
> Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>
>> 2017-04-04 12:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>> > On Tue, 4 Apr 2017 12:43:14 +0200
>> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>> >
>> >> 2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>> >> > On Tue, 4 Apr 2017 12:09:23 +0200
>> >> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
>> >> >
>> >> >> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
>> >> >>
>> >> >> > +  --enable-mf              enable decoding via MediaFoundation [no]
>> >> >>
>> >> >> Why is it not autodetected?
>> >> >
>> >> > Do we want that?
>> >>
>> >> Would autodetection break FFmpeg for anybody on Vista or newer?
>> >>
>> >
>> > I don't know. You didn't answer my question.
>>
>> Yes, I did.
>> We don't want to break distributed builds with the auto-detection.
>
> Can't see where you did.

Consider reading the message again;-)

> This directly links some mfplat.dll functions, so as I understand, it'd
> require at least Windows XP SP2 for libavcodec binaries to run.

Which isn't supported by default builds anymore afaiu.

> But I can't test that. Also, build would almost surely fail with older
> MinGW-w64 versions or original MinGW.

Auto-detection of course means that configure disables the feature
if a build would fail.
But I am sure you knew that.

Please add auto-detection, Carl Eugen
wm4 April 4, 2017, 2:55 p.m.
On Tue, 4 Apr 2017 16:30:58 +0200
Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:

> 2017-04-04 16:04 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> > On Tue, 4 Apr 2017 15:44:29 +0200
> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> >  
> >> 2017-04-04 12:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:  
> >> > On Tue, 4 Apr 2017 12:43:14 +0200
> >> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> >> >  
> >> >> 2017-04-04 12:41 GMT+02:00 wm4 <nfxjfg@googlemail.com>:  
> >> >> > On Tue, 4 Apr 2017 12:09:23 +0200
> >> >> > Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:
> >> >> >  
> >> >> >> 2017-04-04 7:45 GMT+02:00 wm4 <nfxjfg@googlemail.com>:
> >> >> >>  
> >> >> >> > +  --enable-mf              enable decoding via MediaFoundation [no]  
> >> >> >>
> >> >> >> Why is it not autodetected?  
> >> >> >
> >> >> > Do we want that?  
> >> >>
> >> >> Would autodetection break FFmpeg for anybody on Vista or newer?
> >> >>  
> >> >
> >> > I don't know. You didn't answer my question.  
> >>
> >> Yes, I did.
> >> We don't want to break distributed builds with the auto-detection.  
> >
> > Can't see where you did.  
> 
> Consider reading the message again;-)

Nope, can't see where you did.

> > This directly links some mfplat.dll functions, so as I understand, it'd
> > require at least Windows XP SP2 for libavcodec binaries to run.  
> 
> Which isn't supported by default builds anymore afaiu.

Then why do we put so much effort into being XP compatible?

> > But I can't test that. Also, build would almost surely fail with older
> > MinGW-w64 versions or original MinGW.  
> 
> Auto-detection of course means that configure disables the feature
> if a build would fail.
> But I am sure you knew that.
> 
> Please add auto-detection, Carl Eugen

That's not autodetection, just a "normal" check. Autodetection means
the feature is automatically enabled if it's detected (thus the naming).
It's not enabled by default and you have to use --enable-mf.
James Almer April 4, 2017, 3:34 p.m.
On 4/4/2017 2:45 AM, wm4 wrote:
> Can do audio decoding, audio encoding, video decoding, video encoding,
> video HW encoding. I also had video HW decoding, but removed it for now,
> as thw hwframes integration wasn't very sane.
> 
> Some of the MS codecs aren't well tested, and might not work properly.
> ---
> Didn't actually test compilation again, but should be fine.

I'm getting a lot of warnings during linking, using mingw-w64.

LD      ffmpeg_g.exe
libavcodec/libavcodec.a(mf.o): warning: common of `GUID_NULL' overridden by definition
ffmpeg_dxva2.o: warning: defined here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_CURRENTCHANGELIST'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_SUPPORTSEVENTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_ALLSETTINGS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_SETALLDEFAULTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_AUDIO_ENCODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_VIDEO_ENCODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_CHANGELISTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `ENCAPIPARAM_BITRATE_MODE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `ENCAPIPARAM_PEAK_BITRATE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `ENCAPIPARAM_BITRATE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_MULTIPLEXER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_ENCODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_TSRateChange'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_DVD_ENCRYPTED_PACK'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_Line21_GOPPacket'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_Line21_BytePair'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_AUXLine21Data'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_VPVBINotify'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_VIDCAPTOSTI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_VPNotify'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CLSID_KsIBasicAudioInterfaceHandler'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_VPVBIConfig'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_VPConfig'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_DROPPEDFRAMES'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_VIDEOCONTROL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_OverlayUpdate'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_OVERLAY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_VIDEOCOMPRESSION'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_VIDCAP_TVAUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_TVAUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `EVENTSETID_CROSSBAR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_CROSSBAR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_EXTDEV_Command'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_TIMECODE_READER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_EXT_TRANSPORT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_EXT_DEVICE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_CAMERACONTROL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `EVENTSETID_VIDEODECODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_VIDEODECODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_VIDEOENCODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_OUTPUT_MTT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_INPUT_MTT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_CAMERA_TERMINAL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_PROCESSING'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_SELECTOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_OUTPUT_TERMINAL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_INPUT_TERMINAL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_STREAMING'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `EVENTSETID_TUNER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_TUNER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_SELECTOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_VIDCAP_VIDEOPROCAMP'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PROPSETID_ALLOCATOR_CONTROL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_VramCapture'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_VIDEOPORT_VBI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_TIMECODE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_STILL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_CC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_TELETEXT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_EDS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_NABTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_VIDEOPORT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_VBI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_ANALOGVIDEOIN'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_PREVIEW'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_NABTS_CAPTURE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_CC_CAPTURE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `PINNAME_VIDEO_CAPTURE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_VBICodecFiltering'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_NABTS_FEC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_NABTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_VBICAP_PROPERTIES'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_TELETEXT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_NABTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_CC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_RAW8'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_VBI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_VBI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_ANALOGAUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_ANALOGVIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_ANALOGVIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_VIDEOINFO2'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_VIDEOINFO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_VPVBI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_VPVideo'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_VBICODEC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_VPMUX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_TVAUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_CROSSBAR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_TVTUNER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_CopyProt'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_DvdSubPic'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_SUBPICTURE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_AudioDecoderOut'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_SDDS_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_DTS_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_AC3'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_AC3_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_AC3_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_LPCM_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_LPCM_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_MPEG2_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MPEG2_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Mpeg2Vid'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_MPEG2_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MPEG2_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_MPEG2_TRANSPORT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_MPEG2_PROGRAM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_MPEG2_PES'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_MPEG1_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MPEG1Video'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MPEG1Payload'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MPEG1Packet'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_DSS_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_DSS_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_DIALECT_AC3_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_DIALECT_MPEG2_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_DIALECT_MPEG2_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_DIALECT_MPEG1_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_DIALECT_MPEG1_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_STANDARD_AC3_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_STANDARD_MPEG2_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_STANDARD_MPEG2_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_STANDARD_MPEG1_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_STANDARD_MPEG1_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_STANDARD_PACK_HEADER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_STANDARD_PES_PACKET'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_STANDARD_ELEMENTARY_STREAM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_RIFFMIDI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MIDI_BUS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MIDI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_MIDI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_MUSIC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Linear'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_AudioGfx'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Sysaudio_Pin'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Sysaudio'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_LoopedStreaming'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_AudioControlChange'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Cyclic'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_Cyclic'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_WaveTable'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMUSIC_TECHNOLOGY_SWSYNTH'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMUSIC_TECHNOLOGY_WAVETABLE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMUSIC_TECHNOLOGY_FMSYNTH'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMUSIC_TECHNOLOGY_SQSYNTH'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMUSIC_TECHNOLOGY_PORT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Wave'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Acoustic_Echo_Cancel'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMETHODSETID_Wavetable'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_PEAKMETER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_VIDEO_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_VIDEO_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_3D_CENTER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_3D_DEPTH'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_ALTERNATE_MICROPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MICROPHONE_BOOST'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MONO_MIX_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MONO_MIX_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_STEREO_MIX_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_STEREO_MIX_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MONO_OUT_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MONO_OUT_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MONO_MIX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_STEREO_MIX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MONO_OUT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_WAVE_OUT_MIX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_PC_SPEAKER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_AUX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_AUX_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_AUX_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_CD_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_RECORDING_CONTROL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_LINE_IN'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIDI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_VOLUME_CONTROL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_WAVE_IN_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIC_IN_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_LINE_IN_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_CD_IN_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIDI_IN_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_PC_SPEAKER_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_PC_SPEAKER_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_RECORDING_SOURCE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIC_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIC_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_LINE_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_LINE_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_CD_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_CD_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIDI_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MIDI_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_WAVE_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_WAVE_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MASTER_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_MASTER_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_3D_STEREO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_TREBLE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSAUDFNAME_BASS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PEAKMETER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PROLOGIC_ENCODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DEV_SPECIFIC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSALGORITHMINSTANCE_SYSTEM_MICROPHONE_ARRAY_PROCESSOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSALGORITHMINSTANCE_SYSTEM_AGC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSALGORITHMINSTANCE_SYSTEM_NOISE_SUPPRESS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSALGORITHMINSTANCE_SYSTEM_ACOUSTIC_ECHO_CANCEL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_3D_EFFECTS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_CHORUS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_REVERB'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_STEREO_ENHANCE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_STEREO_WIDE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PROLOGIC_DECODER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_LOUDNESS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DELAY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_NOISE_SUPPRESS'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_AGC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_EQUALIZER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_TONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VOLUME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_MUTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SUM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DEMUX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_MUX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SUPERMIX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SRC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_ADC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DAC'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Audio'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_DrmAudioStream'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_RtAudio'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_TopologyNode'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Bibliographic'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_RIFFWAVE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_RIFF'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Itd3d'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Hrtf3d'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_DirectSound3DBuffer'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_DirectSound3DListener'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_DSOUND'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_WAVEFORMATEX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_VC_ID'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MPEG'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_ADPCM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_MULAW'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_ALAW'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_DRM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_IEEE_FLOAT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_PCM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_ANALOG'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_WAVEFORMATEX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_TEXT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_ESCALANTE_PLATFORM_DRIVER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_WDMAUD_USE_PIN_NAME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_PREFERRED_MIDIOUT_DEVICE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_PREFERRED_WAVEIN_DEVICE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_PREFERRED_WAVEOUT_DEVICE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_AUDIO_DEVICE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_AUDIO_SPLITTER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_AUDIO_GFX'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_WDMAUD'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_SYSAUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_ACOUSTIC_ECHO_CANCEL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_VIRTUAL'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_TOPOLOGY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_NETWORK'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_TEXT'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_VIDEO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DRM_DESCRAMBLE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SWMIDI'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SWSYNTH'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SYNTHESIZER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_MULTITRACK_RECORDER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_RADIO_TRANSMITTER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_RADIO_RECEIVER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DSS_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_CABLE_TUNER_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SATELLITE_RECEIVER_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_TV_TUNER_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DVD_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VIDEO_DISC_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_VCR_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PHONOGRAPH'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_ANALOG_TAPE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_MINIDISK'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DCC_IO_DIGITAL_COMPACT_CASSETTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DAT_IO_DIGITAL_AUDIO_TAPE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_CD_PLAYER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_EQUALIZATION_NOISE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_LEVEL_CALIBRATION_NOISE_SOURCE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_1394_DV_STREAM_SOUNDTRACK'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_1394_DA_STREAM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SPDIF_INTERFACE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_LEGACY_AUDIO_CONNECTOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_LINE_CONNECTOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DIGITAL_AUDIO_INTERFACE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_ANALOG_CONNECTOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DOWN_LINE_PHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_TELEPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PHONE_LINE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_ECHO_CANCELING_SPEAKERPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_ECHO_SUPPRESSING_SPEAKERPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SPEAKERPHONE_NO_ECHO_REDUCTION'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_HEADSET'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_HANDSET'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_LOW_FREQUENCY_EFFECTS_SPEAKER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_COMMUNICATION_SPEAKER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_ROOM_SPEAKER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DESKTOP_SPEAKER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_HEAD_MOUNTED_DISPLAY_AUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_HEADPHONES'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_SPEAKER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_MICROPHONE_ARRAY_PROCESSOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PROCESSING_MICROPHONE_ARRAY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_MICROPHONE_ARRAY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_OMNI_DIRECTIONAL_MICROPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_PERSONAL_MICROPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_DESKTOP_MICROPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNODETYPE_MICROPHONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCOMPONENTID_USBAUDIO'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSINTERFACESETID_Media'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEDIUMSETID_VPBus'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEDIUMSETID_MidiBus'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDEGRADESETID_Standard'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_Connection'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_Clock'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Clock'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Stream'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_StreamInterface'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_StreamAllocator'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMETHODSETID_StreamAllocator'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSEVENTSETID_StreamAllocator'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEMORY_TYPE_DEVICE_UNKNOWN'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEMORY_TYPE_KERNEL_NONPAGED'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEMORY_TYPE_KERNEL_PAGED'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEMORY_TYPE_USER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEMORY_TYPE_SYSTEM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_MemoryTransport'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Connection'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Quality'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_NONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_FILEHANDLE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SPECIFIER_FILENAME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_SUBTYPE_NONE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSDATAFORMAT_TYPE_STREAM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNAME_TopologyNode'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNAME_Allocator'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNAME_Clock'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNAME_Pin'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSNAME_Filter'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Pin'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMEDIUMSETID_Standard'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSINTERFACESETID_FileIo'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSINTERFACESETID_Standard'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSTIME_FORMAT_MEDIA_TIME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSTIME_FORMAT_FIELD'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSTIME_FORMAT_SAMPLE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSTIME_FORMAT_BYTE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSTIME_FORMAT_FRAME'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_QUALITY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_PROXY'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_CLOCK'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_FILESYSTEM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_MEDIUMTRANSFORM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_INTERFACETRANSFORM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_COMMUNICATIONSTRANSFORM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_DATATRANSFORM'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_DATADECOMPRESSOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_DATACOMPRESSOR'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_SPLITTER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_MIXER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_RENDER'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_CAPTURE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSCATEGORY_BRIDGE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_Topology'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_MediaSeeking'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSMETHODSETID_StreamIo'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPSETID_General'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `KSPROPTYPESETID_General'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
libavcodec/libavcodec.a(mf_utils.o): warning: common of `GUID_NULL' overridden by definition
ffmpeg_dxva2.o: warning: defined here
libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `MR_BUFFER_SERVICE'
libavcodec/libavcodec.a(mf.o): warning: previous common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `MR_BUFFER_SERVICE' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `ENCAPIPARAM_PEAK_BITRATE' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `ENCAPIPARAM_BITRATE_MODE' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `ENCAPIPARAM_BITRATE' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_VIDEO_ENCODER' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_SUPPORTSEVENTS' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_SETALLDEFAULTS' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_CHANGELISTS' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_CURRENTCHANGELIST' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_AUDIO_ENCODER' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/6.3.0/../../../../x86_64-w64-mingw32/lib/../lib/libstrmiids.a(lib64_libstrmiids_a-strmiids.o): warning: definition of `CODECAPI_ALLSETTINGS' overriding common
libavcodec/libavcodec.a(mf.o): warning: common is here
wm4 April 4, 2017, 3:48 p.m.
On Tue, 4 Apr 2017 12:34:56 -0300
James Almer <jamrial@gmail.com> wrote:

> On 4/4/2017 2:45 AM, wm4 wrote:
> > Can do audio decoding, audio encoding, video decoding, video encoding,
> > video HW encoding. I also had video HW decoding, but removed it for now,
> > as thw hwframes integration wasn't very sane.
> > 
> > Some of the MS codecs aren't well tested, and might not work properly.
> > ---
> > Didn't actually test compilation again, but should be fine.  
> 
> I'm getting a lot of warnings during linking, using mingw-w64.
> 
> LD      ffmpeg_g.exe
> libavcodec/libavcodec.a(mf.o): warning: common of `GUID_NULL' overridden by definition
> ffmpeg_dxva2.o: warning: defined here
> libavcodec/libavcodec.a(mf_utils.o): warning: multiple common of `CODECAPI_CURRENTCHANGELIST'
> libavcodec/libavcodec.a(mf.o): warning: previous common is here

Apparently happens only when statically linking?

This kind of stuff seems to happen often with Windows and GUID
definitions, but I don't remember what the solution was.

Patch hide | download patch | download mbox

diff --git a/configure b/configure
index 6d76cf7e1e..9909e7ab77 100755
--- a/configure
+++ b/configure
@@ -280,6 +280,7 @@  External library support:
   --disable-lzma           disable lzma [autodetect]
   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
   --enable-mediacodec      enable Android MediaCodec support [no]
+  --enable-mf              enable decoding via MediaFoundation [no]
   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
   --enable-openal          enable OpenAL 1.1 capture support [no]
   --enable-opencl          enable OpenCL code
@@ -1582,6 +1583,7 @@  EXTERNAL_LIBRARY_LIST="
     libzmq
     libzvbi
     mediacodec
+    mf
     netcdf
     openal
     opencl
@@ -2124,6 +2126,7 @@  CONFIG_EXTRA="
     lpc
     lzf
     me_cmp
+    mf
     mpeg_er
     mpegaudio
     mpegaudiodsp
@@ -2584,6 +2587,8 @@  zmbv_encoder_select="zlib"
 # platform codecs
 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
+mf_deps="mftransform_h"
+mf_extralibs="-lmfplat -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
 
 # hardware accelerators
 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
@@ -2892,6 +2897,34 @@  libx265_encoder_deps="libx265"
 libxavs_encoder_deps="libxavs"
 libxvid_encoder_deps="libxvid"
 libzvbi_teletext_decoder_deps="libzvbi"
+aac_mf_decoder_deps="mf"
+aac_mf_encoder_deps="mf"
+ac3_mf_decoder_deps="mf"
+ac3_mf_encoder_deps="mf"
+eac3_mf_decoder_deps="mf"
+h264_mf_decoder_deps="mf"
+h264_mf_encoder_deps="mf"
+hevc_mf_decoder_deps="mf"
+hevc_mf_encoder_deps="mf"
+mjpeg_mf_decoder_deps="mf"
+mp1_mf_decoder_deps="mf"
+mp2_mf_decoder_deps="mf"
+mp3_mf_decoder_deps="mf"
+mp3_mf_encoder_deps="mf"
+mpeg2_mf_decoder_deps="mf"
+mpeg4_mf_decoder_deps="mf"
+msmpeg4v1_mf_decoder_deps="mf"
+msmpeg4v2_mf_decoder_deps="mf"
+msmpeg4v3_mf_decoder_deps="mf"
+vc1_mf_decoder_deps="mf"
+wmav1_mf_decoder_deps="mf"
+wmav2_mf_decoder_deps="mf"
+wmalossless_mf_decoder_deps="mf"
+wmapro_mf_decoder_deps="mf"
+wmavoice_mf_decoder_deps="mf"
+wmv1_mf_decoder_deps="mf"
+wmv2_mf_decoder_deps="mf"
+wmv3_mf_decoder_deps="mf"
 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
@@ -5632,6 +5665,7 @@  check_header io.h
 check_header libcrystalhd/libcrystalhd_if.h
 check_header mach/mach_time.h
 check_header malloc.h
+check_header mftransform.h
 check_header net/udplite.h
 check_header poll.h
 check_header sys/mman.h
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 876a69e013..d26124f60c 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -915,6 +915,7 @@  OBJS-$(CONFIG_LIBX265_ENCODER)            += libx265.o
 OBJS-$(CONFIG_LIBXAVS_ENCODER)            += libxavs.o
 OBJS-$(CONFIG_LIBXVID_ENCODER)            += libxvid.o
 OBJS-$(CONFIG_LIBZVBI_TELETEXT_DECODER)   += libzvbi-teletextdec.o ass.o
+OBJS-$(CONFIG_MF)                         += mf.o mf_utils.o mpeg4audio.o
 
 # parsers
 OBJS-$(CONFIG_AAC_LATM_PARSER)         += latm_parser.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index b7d03ad601..c8704a267b 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -631,6 +631,29 @@  static void register_all(void)
     REGISTER_ENCODER(LIBXAVS,           libxavs);
     REGISTER_ENCODER(LIBXVID,           libxvid);
     REGISTER_DECODER(LIBZVBI_TELETEXT,  libzvbi_teletext);
+    REGISTER_ENCDEC (AAC_MF,            aac_mf);
+    REGISTER_ENCDEC (AC3_MF,            ac3_mf);
+    REGISTER_DECODER(EAC3_MF,           eac3_mf);
+    REGISTER_ENCDEC (H264_MF,           h264_mf);
+    REGISTER_ENCDEC (HEVC_MF,           hevc_mf);
+    REGISTER_DECODER(MJPEG_MF,          mjpeg_mf);
+    REGISTER_DECODER(MP1_MF,            mp1_mf);
+    REGISTER_DECODER(MP2_MF,            mp2_mf);
+    REGISTER_ENCDEC (MP3_MF,            mp3_mf);
+    REGISTER_DECODER(MPEG2_MF,          mpeg2_mf);
+    REGISTER_DECODER(MPEG4_MF,          mpeg4_mf);
+    REGISTER_DECODER(MSMPEG4V1_MF,      msmpeg4v1_mf);
+    REGISTER_DECODER(MSMPEG4V2_MF,      msmpeg4v2_mf);
+    REGISTER_DECODER(MSMPEG4V3_MF,      msmpeg4v3_mf);
+    REGISTER_DECODER(VC1_MF,            vc1_mf);
+    REGISTER_DECODER(WMALOSSLESS_MF,    wmalossless_mf);
+    REGISTER_DECODER(WMAPRO_MF,         wmapro_mf);
+    REGISTER_DECODER(WMAV1_MF,          wmav1_mf);
+    REGISTER_DECODER(WMAV2_MF,          wmav2_mf);
+    REGISTER_DECODER(WMAVOICE_MF,       wmavoice_mf);
+    REGISTER_DECODER(WMV1_MF,           wmv1_mf);
+    REGISTER_DECODER(WMV2_MF,           wmv2_mf);
+    REGISTER_DECODER(WMV3_MF,           wmv3_mf);
 
     /* text */
     REGISTER_DECODER(BINTEXT,           bintext);
diff --git a/libavcodec/mf.c b/libavcodec/mf.c
new file mode 100644
index 0000000000..d2213f8fa3
--- /dev/null
+++ b/libavcodec/mf.c
@@ -0,0 +1,1951 @@ 
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#define COBJMACROS
+#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0601
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0601
+#endif
+
+#include "mf_utils.h"
+
+// Include after mf_utils.h due to Windows include mess.
+#include "mpeg4audio.h"
+
+typedef struct MFContext {
+    AVClass *av_class;
+    int is_dec, is_enc, is_video, is_audio;
+    GUID main_subtype;
+    IMFTransform *mft;
+    IMFMediaEventGenerator *async_events;
+    DWORD in_stream_id, out_stream_id;
+    MFT_INPUT_STREAM_INFO in_info;
+    MFT_OUTPUT_STREAM_INFO out_info;
+    int out_stream_provides_samples;
+    int draining, draining_done;
+    int sample_sent;
+    int async_need_input, async_have_output, async_marker;
+    int lavc_init_done;
+    uint8_t *send_extradata;
+    int send_extradata_size;
+    ICodecAPI *codec_api;
+    AVBSFContext *bsfc;
+    // Important parameters which might be overwritten by decoding.
+    int original_channels;
+    // set by AVOption
+    int opt_enc_rc;
+    int opt_enc_quality;
+    int opt_enc_d3d;
+} MFContext;
+
+static int mf_choose_output_type(AVCodecContext *avctx);
+static int mf_setup_context(AVCodecContext *avctx);
+
+#define MF_TIMEBASE (AVRational){1, 10000000}
+// Sentinel value only used by us.
+#define MF_INVALID_TIME AV_NOPTS_VALUE
+
+static int mf_wait_events(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+
+    if (!c->async_events)
+        return 0;
+
+    while (!(c->async_need_input || c->async_have_output || c->draining_done || c->async_marker)) {
+        IMFMediaEvent *ev = NULL;
+        MediaEventType ev_id = 0;
+        HRESULT hr = IMFMediaEventGenerator_GetEvent(c->async_events, 0, &ev);
+        if (FAILED(hr)) {
+            av_log(avctx, AV_LOG_ERROR, "IMFMediaEventGenerator_GetEvent() failed: %s\n",
+                   ff_hr_str(hr));
+            return AVERROR_EXTERNAL;
+        }
+        IMFMediaEvent_GetType(ev, &ev_id);
+        switch (ev_id) {
+        case ff_METransformNeedInput:
+            if (!c->draining)
+                c->async_need_input = 1;
+            break;
+        case ff_METransformHaveOutput:
+            c->async_have_output = 1;
+            break;
+        case ff_METransformDrainComplete:
+            c->draining_done = 1;
+            break;
+        case ff_METransformMarker:
+            c->async_marker = 1;
+            break;
+        default: ;
+        }
+        IMFMediaEvent_Release(ev);
+    }
+
+    return 0;
+}
+
+static AVRational mf_get_tb(AVCodecContext *avctx)
+{
+    if (avctx->pkt_timebase.num > 0 && avctx->pkt_timebase.den > 0)
+        return avctx->pkt_timebase;
+    if (avctx->time_base.num > 0 && avctx->time_base.den > 0)
+        return avctx->time_base;
+    return MF_TIMEBASE;
+}
+
+static LONGLONG mf_to_mf_time(AVCodecContext *avctx, int64_t av_pts)
+{
+    if (av_pts == AV_NOPTS_VALUE)
+        return MF_INVALID_TIME;
+    return av_rescale_q(av_pts, mf_get_tb(avctx), MF_TIMEBASE);
+}
+
+static void mf_sample_set_pts(AVCodecContext *avctx, IMFSample *sample, int64_t av_pts)
+{
+    LONGLONG stime = mf_to_mf_time(avctx, av_pts);
+    if (stime != MF_INVALID_TIME)
+        IMFSample_SetSampleTime(sample, stime);
+}
+
+static int64_t mf_from_mf_time(AVCodecContext *avctx, LONGLONG stime)
+{
+    return av_rescale_q(stime, MF_TIMEBASE, mf_get_tb(avctx));
+}
+
+static int64_t mf_sample_get_pts(AVCodecContext *avctx, IMFSample *sample)
+{
+    LONGLONG pts;
+    HRESULT hr = IMFSample_GetSampleTime(sample, &pts);
+    if (FAILED(hr))
+        return AV_NOPTS_VALUE;
+    return mf_from_mf_time(avctx, pts);
+}
+
+static IMFSample *mf_avpacket_to_sample(AVCodecContext *avctx, const AVPacket *avpkt)
+{
+    MFContext *c = avctx->priv_data;
+    IMFSample *sample = NULL;
+    AVPacket tmp = {0};
+    int ret;
+
+    if ((ret = av_packet_ref(&tmp, avpkt)) < 0)
+        goto done;
+
+    if (c->bsfc) {
+        AVPacket tmp2 = {0};
+        if ((ret = av_bsf_send_packet(c->bsfc, &tmp)) < 0)
+            goto done;
+        if ((ret = av_bsf_receive_packet(c->bsfc, &tmp)) < 0)
+            goto done;
+        // We don't support any 1:m BSF filtering - but at least don't get stuck.
+        while ((ret = av_bsf_receive_packet(c->bsfc, &tmp2)) >= 0)
+            av_log(avctx, AV_LOG_ERROR, "Discarding unsupported sub-packet.\n");
+        av_packet_unref(&tmp2);
+    }
+
+    sample = ff_create_memory_sample(tmp.data, tmp.size, c->in_info.cbAlignment);
+    if (sample) {
+        int64_t pts = avpkt->pts;
+        if (pts == AV_NOPTS_VALUE)
+            pts = avpkt->dts;
+        mf_sample_set_pts(avctx, sample, pts);
+        if (avpkt->flags & AV_PKT_FLAG_KEY)
+            IMFAttributes_SetUINT32(sample, &MFSampleExtension_CleanPoint, TRUE);
+    }
+
+done:
+    av_packet_unref(&tmp);
+    return sample;
+}
+
+static int mf_deca_output_type_get(AVCodecContext *avctx, IMFMediaType *type)
+{
+    UINT32 t;
+    HRESULT hr;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, &t);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+    avctx->channels = t;
+    avctx->channel_layout = av_get_default_channel_layout(t);
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_CHANNEL_MASK, &t);
+    if (!FAILED(hr))
+        avctx->channel_layout = t;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, &t);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+    avctx->sample_rate = t;
+
+    avctx->sample_fmt = ff_media_type_to_sample_fmt((IMFAttributes *)type);
+
+    if (avctx->sample_fmt == AV_SAMPLE_FMT_NONE || !avctx->channels)
+        return AVERROR_EXTERNAL;
+
+    return 0;
+}
+
+static int mf_decv_output_type_get(AVCodecContext *avctx, IMFMediaType *type)
+{
+    HRESULT hr;
+    UINT32 w, h, cw, ch, t, t2;
+    MFVideoArea area = {0};
+    int ret;
+
+    avctx->pix_fmt = ff_media_type_to_pix_fmt((IMFAttributes *)type);
+
+    hr = ff_MFGetAttributeSize((IMFAttributes *)type, &MF_MT_FRAME_SIZE, &cw, &ch);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+
+    // Cropping rectangle. Ignore the fractional offset, because nobody uses that anyway.
+    // (libavcodec native decoders still try to crop away mod-2 offset pixels by
+    // adjusting the pixel plane pointers.)
+    hr = IMFAttributes_GetBlob(type, &MF_MT_MINIMUM_DISPLAY_APERTURE, (void *)&area, sizeof(area), NULL);
+    if (FAILED(hr)) {
+        w = cw;
+        h = ch;
+    } else {
+        w = area.OffsetX.value + area.Area.cx;
+        h = area.OffsetY.value + area.Area.cy;
+    }
+
+    if (w > cw || h > ch)
+        return AVERROR_EXTERNAL;
+
+    hr = ff_MFGetAttributeRatio((IMFAttributes *)type, &MF_MT_PIXEL_ASPECT_RATIO, &t, &t2);
+    if (!FAILED(hr)) {
+        avctx->sample_aspect_ratio.num = t;
+        avctx->sample_aspect_ratio.den = t2;
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_YUV_MATRIX, &t);
+    if (!FAILED(hr)) {
+        switch (t) {
+        case MFVideoTransferMatrix_BT709:       avctx->colorspace = AVCOL_SPC_BT709; break;
+        case MFVideoTransferMatrix_BT601:       avctx->colorspace = AVCOL_SPC_BT470BG; break;
+        case MFVideoTransferMatrix_SMPTE240M:   avctx->colorspace = AVCOL_SPC_SMPTE240M; break;
+        }
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_VIDEO_PRIMARIES, &t);
+    if (!FAILED(hr)) {
+        switch (t) {
+        case MFVideoPrimaries_BT709:            avctx->color_primaries = AVCOL_PRI_BT709; break;
+        case MFVideoPrimaries_BT470_2_SysM:     avctx->color_primaries = AVCOL_PRI_BT470M; break;
+        case MFVideoPrimaries_BT470_2_SysBG:    avctx->color_primaries = AVCOL_PRI_BT470BG; break;
+        case MFVideoPrimaries_SMPTE170M:        avctx->color_primaries = AVCOL_PRI_SMPTE170M; break;
+        case MFVideoPrimaries_SMPTE240M:        avctx->color_primaries = AVCOL_PRI_SMPTE240M; break;
+        }
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_TRANSFER_FUNCTION, &t);
+    if (!FAILED(hr)) {
+        switch (t) {
+        case MFVideoTransFunc_10:               avctx->color_trc = AVCOL_TRC_LINEAR; break;
+        case MFVideoTransFunc_22:               avctx->color_trc = AVCOL_TRC_GAMMA22; break;
+        case MFVideoTransFunc_709:              avctx->color_trc = AVCOL_TRC_BT709; break;
+        case MFVideoTransFunc_240M:             avctx->color_trc = AVCOL_TRC_SMPTE240M; break;
+        case MFVideoTransFunc_sRGB:             avctx->color_trc = AVCOL_TRC_IEC61966_2_1; break;
+        case MFVideoTransFunc_28:               avctx->color_trc = AVCOL_TRC_GAMMA28; break;
+        // mingw doesn't define these yet
+        //case MFVideoTransFunc_Log_100:          avctx->color_trc = AVCOL_TRC_LOG; break;
+        //case MFVideoTransFunc_Log_316:          avctx->color_trc = AVCOL_TRC_LOG_SQRT; break;
+        }
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_VIDEO_CHROMA_SITING, &t);
+    if (!FAILED(hr)) {
+        switch (t) {
+        case MFVideoChromaSubsampling_MPEG2:    avctx->chroma_sample_location = AVCHROMA_LOC_LEFT; break;
+        case MFVideoChromaSubsampling_MPEG1:    avctx->chroma_sample_location = AVCHROMA_LOC_CENTER; break;
+        }
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_VIDEO_NOMINAL_RANGE, &t);
+    if (!FAILED(hr)) {
+        switch (t) {
+        case MFNominalRange_0_255:              avctx->color_range = AVCOL_RANGE_JPEG; break;
+        case MFNominalRange_16_235:             avctx->color_range = AVCOL_RANGE_MPEG; break;
+        }
+    }
+
+    if ((ret = ff_set_dimensions(avctx, cw, ch)) < 0)
+        return ret;
+
+    avctx->width = w;
+    avctx->height = h;
+
+    return ret;
+}
+
+static int mf_enca_output_type_get(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    UINT32 sz;
+
+    if (avctx->codec_id != AV_CODEC_ID_MP3 && avctx->codec_id != AV_CODEC_ID_AC3) {
+        hr = IMFAttributes_GetBlobSize(type, &MF_MT_USER_DATA, &sz);
+        if (!FAILED(hr) && sz > 0) {
+            avctx->extradata = av_mallocz(sz + AV_INPUT_BUFFER_PADDING_SIZE);
+            if (!avctx->extradata)
+                return AVERROR(ENOMEM);
+            avctx->extradata_size = sz;
+            hr = IMFAttributes_GetBlob(type, &MF_MT_USER_DATA, avctx->extradata, sz, NULL);
+            if (FAILED(hr))
+                return AVERROR_EXTERNAL;
+
+            if (avctx->codec_id == AV_CODEC_ID_AAC && avctx->extradata_size >= 12) {
+                // Get rid of HEAACWAVEINFO (after wfx field, 12 bytes).
+                avctx->extradata_size = avctx->extradata_size - 12;
+                memmove(avctx->extradata, avctx->extradata + 12, avctx->extradata_size);
+            }
+        }
+    }
+
+    // I don't know where it's documented that we need this. It happens with the
+    // MS mp3 encoder MFT. The idea for the workaround is taken from NAudio.
+    // (Certainly any lossy codec will have frames much smaller than 1 second.)
+    if (!c->out_info.cbSize && !c->out_stream_provides_samples) {
+        hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_AVG_BYTES_PER_SECOND, &sz);
+        if (!FAILED(hr)) {
+            av_log(avctx, AV_LOG_VERBOSE, "MFT_OUTPUT_STREAM_INFO.cbSize set to 0, "
+                   "assuming %d bytes instead.\n", (int)sz);
+            c->out_info.cbSize = sz;
+        }
+    }
+
+    return 0;
+}
+
+static int mf_encv_output_type_get(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    UINT32 sz;
+
+    hr = IMFAttributes_GetBlobSize(type, &MF_MT_MPEG_SEQUENCE_HEADER, &sz);
+    if (!FAILED(hr) && sz > 0) {
+        uint8_t *extradata = av_mallocz(sz + AV_INPUT_BUFFER_PADDING_SIZE);
+        if (!extradata)
+            return AVERROR(ENOMEM);
+        hr = IMFAttributes_GetBlob(type, &MF_MT_MPEG_SEQUENCE_HEADER, extradata, sz, NULL);
+        if (FAILED(hr)) {
+            av_free(extradata);
+            return AVERROR_EXTERNAL;
+        }
+        if (c->lavc_init_done) {
+            // At least the Intel QSV h264 MFT sets up extradata when the first
+            // frame is encoded, and after the AVCodecContext was opened.
+            // Send it as side-data with the next packet.
+            av_freep(&c->send_extradata);
+            c->send_extradata = extradata;
+            c->send_extradata_size = sz;
+        } else {
+            av_freep(&avctx->extradata);
+            avctx->extradata = extradata;
+            avctx->extradata_size = sz;
+        }
+    }
+
+    return 0;
+}
+
+static int mf_output_type_get(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    IMFMediaType *type;
+    int ret;
+
+    hr = IMFTransform_GetOutputCurrentType(c->mft, c->out_stream_id, &type);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "could not get output type\n");
+        return AVERROR_EXTERNAL;
+    }
+
+    av_log(avctx, AV_LOG_VERBOSE, "final output type:\n");
+    ff_media_type_dump(avctx, type);
+
+    ret = 0;
+    if (c->is_dec && c->is_video) {
+        ret = mf_decv_output_type_get(avctx, type);
+    } else if (c->is_dec && c->is_audio) {
+        ret = mf_deca_output_type_get(avctx, type);
+    } else if (c->is_enc && c->is_video) {
+        ret = mf_encv_output_type_get(avctx, type);
+    } else if (c->is_enc && c->is_audio) {
+        ret = mf_enca_output_type_get(avctx, type);
+    }
+
+    if (ret < 0)
+        av_log(avctx, AV_LOG_ERROR, "output type not supported\n");
+
+    IMFMediaType_Release(type);
+    return ret;
+}
+
+static int mf_sample_to_a_avframe(AVCodecContext *avctx, IMFSample *sample, AVFrame *frame)
+{
+    HRESULT hr;
+    int ret;
+    DWORD len;
+    IMFMediaBuffer *buffer;
+    BYTE *data;
+    size_t bps;
+
+    hr = IMFSample_GetTotalLength(sample, &len);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+
+    bps = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->channels;
+
+    frame->nb_samples = len / bps;
+    if (frame->nb_samples * bps != len)
+        return AVERROR_EXTERNAL; // unaligned crap -> assume not possible
+
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+        return ret;
+
+    IMFSample_ConvertToContiguousBuffer(sample, &buffer);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+
+    hr = IMFMediaBuffer_Lock(buffer, &data, NULL, NULL);
+    if (FAILED(hr)) {
+        IMFMediaBuffer_Release(buffer);
+        return AVERROR_EXTERNAL;
+    }
+
+    memcpy(frame->data[0], data, len);
+
+    IMFMediaBuffer_Unlock(buffer);
+    IMFMediaBuffer_Release(buffer);
+
+    return 0;
+}
+
+static int mf_transfer_data_from(AVFrame *dst, IMFSample *sample,
+                                 int src_width, int src_height)
+{
+    HRESULT hr;
+    DWORD num_buffers;
+    IMFMediaBuffer *buffer;
+    IMF2DBuffer *buffer_2d = NULL;
+    IMF2DBuffer2 *buffer_2d2 = NULL;
+    uint8_t *src_data[4] = {0};
+    int src_linesizes[4] = {0};
+    int locked_1d = 0;
+    int locked_2d = 0;
+    int copy_w = FFMIN(dst->width, src_width);
+    int copy_h = FFMIN(dst->height, src_height);
+    int ret = 0;
+
+    hr = IMFSample_GetBufferCount(sample, &num_buffers);
+    if (FAILED(hr) || num_buffers != 1)
+        return AVERROR_EXTERNAL;
+
+    hr = IMFSample_GetBufferByIndex(sample, 0, &buffer);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+
+    // Prefer IMF2DBuffer(2) if supported - it's faster, but usually only
+    // present if hwaccel is used.
+    hr = IMFMediaBuffer_QueryInterface(buffer, &IID_IMF2DBuffer, (void **)&buffer_2d);
+    if (!FAILED(hr) && (dst->format == AV_PIX_FMT_NV12 ||
+                        dst->format == AV_PIX_FMT_P010)) {
+        BYTE *sc = NULL;
+        LONG pitch = 0;
+
+        // Prefer IMF2DBuffer2 if supported.
+        IMFMediaBuffer_QueryInterface(buffer, &IID_IMF2DBuffer2, (void **)&buffer_2d2);
+        if (buffer_2d2) {
+            BYTE *start = NULL;
+            DWORD length = 0;
+            hr = IMF2DBuffer2_Lock2DSize(buffer_2d2, MF2DBuffer_LockFlags_Read, &sc, &pitch, &start, &length);
+        } else {
+            hr = IMF2DBuffer_Lock2D(buffer_2d, &sc, &pitch);
+        }
+        if (FAILED(hr)) {
+            ret = AVERROR_EXTERNAL;
+            goto done;
+        }
+        locked_2d = 1; // (always uses IMF2DBuffer_Unlock2D)
+
+        src_data[0] = (uint8_t *)sc;
+        src_linesizes[0] = pitch;
+        src_data[1] = (uint8_t *)sc + pitch * src_height;
+        src_linesizes[1] = pitch;
+    } else {
+        BYTE *data;
+        DWORD length;
+
+        hr = IMFMediaBuffer_Lock(buffer, &data, NULL, &length);
+        if (FAILED(hr)) {
+            ret = AVERROR_EXTERNAL;
+            goto done;
+        }
+        locked_1d = 1;
+
+        av_image_fill_arrays(src_data, src_linesizes, data, dst->format,
+                             src_width, src_height, 1);
+    }
+
+    av_image_copy(dst->data, dst->linesize, (void *)src_data, src_linesizes,
+                  dst->format, copy_w, copy_h);
+
+done:
+
+    if (locked_1d)
+        IMFMediaBuffer_Unlock(buffer);
+    if (locked_2d)
+        IMF2DBuffer_Unlock2D(buffer_2d);
+    if (buffer_2d)
+        IMF2DBuffer_Release(buffer_2d);
+    if (buffer_2d2)
+        IMF2DBuffer2_Release(buffer_2d2);
+
+    IMFMediaBuffer_Release(buffer);
+    return ret;
+}
+
+static int mf_sample_to_v_avframe(AVCodecContext *avctx, IMFSample *sample, AVFrame *frame)
+{
+    int ret = 0;
+
+    frame->width = avctx->width;
+    frame->height = avctx->height;
+    frame->format = avctx->pix_fmt;
+
+    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+        return ret;
+
+    return mf_transfer_data_from(frame, sample, avctx->coded_width, avctx->coded_height);
+}
+
+// Allocate the given frame and copy the sample to it.
+// Format must have been set on the avctx.
+static int mf_sample_to_avframe(AVCodecContext *avctx, IMFSample *sample, AVFrame *frame)
+{
+    MFContext *c = avctx->priv_data;
+    int ret;
+
+    if (c->is_audio) {
+        ret = mf_sample_to_a_avframe(avctx, sample, frame);
+    } else {
+        ret = mf_sample_to_v_avframe(avctx, sample, frame);
+    }
+
+    frame->pts = mf_sample_get_pts(avctx, sample);
+    frame->pkt_dts = AV_NOPTS_VALUE;
+
+    return ret;
+}
+
+static int mf_sample_to_avpacket(AVCodecContext *avctx, IMFSample *sample, AVPacket *avpkt)
+{
+    HRESULT hr;
+    int ret;
+    DWORD len;
+    IMFMediaBuffer *buffer;
+    BYTE *data;
+    UINT64 t;
+    UINT32 t32;
+
+    hr = IMFSample_GetTotalLength(sample, &len);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+
+    if ((ret = av_new_packet(avpkt, len)) < 0)
+        return ret;
+
+    IMFSample_ConvertToContiguousBuffer(sample, &buffer);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+
+    hr = IMFMediaBuffer_Lock(buffer, &data, NULL, NULL);
+    if (FAILED(hr)) {
+        IMFMediaBuffer_Release(buffer);
+        return AVERROR_EXTERNAL;
+    }
+
+    memcpy(avpkt->data, data, len);
+
+    IMFMediaBuffer_Unlock(buffer);
+    IMFMediaBuffer_Release(buffer);
+
+    avpkt->pts = avpkt->dts = mf_sample_get_pts(avctx, sample);
+
+    hr = IMFAttributes_GetUINT32(sample, &MFSampleExtension_CleanPoint, &t32);
+    if (!FAILED(hr) && t32 != 0)
+        avpkt->flags |= AV_PKT_FLAG_KEY;
+
+    hr = IMFAttributes_GetUINT64(sample, &MFSampleExtension_DecodeTimestamp, &t);
+    if (!FAILED(hr))
+        avpkt->dts = mf_from_mf_time(avctx, t);
+
+    return 0;
+}
+
+static IMFSample *mf_a_avframe_to_sample(AVCodecContext *avctx, const AVFrame *frame)
+{
+    MFContext *c = avctx->priv_data;
+    size_t len;
+    size_t bps;
+    IMFSample *sample;
+
+    bps = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->channels;
+    len = frame->nb_samples * bps;
+
+    sample = ff_create_memory_sample(frame->data[0], len, c->in_info.cbAlignment);
+    if (sample)
+        IMFSample_SetSampleDuration(sample, mf_to_mf_time(avctx, frame->nb_samples));
+    return sample;
+}
+
+static IMFSample *mf_v_avframe_to_sample(AVCodecContext *avctx, const AVFrame *frame)
+{
+    MFContext *c = avctx->priv_data;
+    IMFSample *sample;
+    IMFMediaBuffer *buffer;
+    BYTE *data;
+    HRESULT hr;
+    int ret;
+    int size;
+
+    size = av_image_get_buffer_size(avctx->pix_fmt, avctx->width, avctx->height, 1);
+    if (size < 0)
+        return NULL;
+
+    sample = ff_create_memory_sample(NULL, size, c->in_info.cbAlignment);
+    if (!sample)
+        return NULL;
+
+    hr = IMFSample_GetBufferByIndex(sample, 0, &buffer);
+    if (FAILED(hr)) {
+        IMFSample_Release(sample);
+        return NULL;
+    }
+
+    hr = IMFMediaBuffer_Lock(buffer, &data, NULL, NULL);
+    if (FAILED(hr)) {
+        IMFMediaBuffer_Release(buffer);
+        IMFSample_Release(sample);
+        return NULL;
+    }
+
+    ret = av_image_copy_to_buffer((uint8_t *)data, size, (void *)frame->data, frame->linesize,
+                                  avctx->pix_fmt, avctx->width, avctx->height, 1);
+    IMFMediaBuffer_SetCurrentLength(buffer, size);
+    IMFMediaBuffer_Unlock(buffer);
+    IMFMediaBuffer_Release(buffer);
+    if (ret < 0) {
+        IMFSample_Release(sample);
+        return NULL;
+    }
+
+    IMFSample_SetSampleDuration(sample, mf_to_mf_time(avctx, frame->pkt_duration));
+
+    return sample;
+}
+
+static IMFSample *mf_avframe_to_sample(AVCodecContext *avctx, const AVFrame *frame)
+{
+    MFContext *c = avctx->priv_data;
+    IMFSample *sample;
+
+    if (c->is_audio) {
+        sample = mf_a_avframe_to_sample(avctx, frame);
+    } else {
+        sample = mf_v_avframe_to_sample(avctx, frame);
+    }
+
+    if (sample)
+        mf_sample_set_pts(avctx, sample, frame->pts);
+
+    return sample;
+}
+
+static int mf_send_sample(AVCodecContext *avctx, IMFSample *sample)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    int ret;
+
+    if (sample) {
+        if (c->async_events) {
+            if ((ret = mf_wait_events(avctx)) < 0)
+                return ret;
+            if (!c->async_need_input)
+                return AVERROR(EAGAIN);
+        }
+        if (!c->sample_sent)
+            IMFSample_SetUINT32(sample, &MFSampleExtension_Discontinuity, TRUE);
+        c->sample_sent = 1;
+        hr = IMFTransform_ProcessInput(c->mft, c->in_stream_id, sample, 0);
+        if (hr == MF_E_NOTACCEPTING) {
+            return AVERROR(EAGAIN);
+        } else if (FAILED(hr)) {
+            av_log(avctx, AV_LOG_ERROR, "failed processing input: %s\n", ff_hr_str(hr));
+            return AVERROR_EXTERNAL;
+        }
+        c->async_need_input = 0;
+    } else if (!c->draining) {
+        hr = IMFTransform_ProcessMessage(c->mft, MFT_MESSAGE_COMMAND_DRAIN, 0);
+        if (FAILED(hr))
+            av_log(avctx, AV_LOG_ERROR, "failed draining: %s\n", ff_hr_str(hr));
+        // Some MFTs (AC3) will send a frame after each drain command (???), so
+        // this is required to make draining actually terminate.
+        c->draining = 1;
+        c->async_need_input = 0;
+    } else {
+        return AVERROR_EOF;
+    }
+    return 0;
+}
+
+static int mf_send_frame(AVCodecContext *avctx, const AVFrame *frame)
+{
+    MFContext *c = avctx->priv_data;
+    int ret;
+    IMFSample *sample = NULL;
+    if (frame) {
+        sample = mf_avframe_to_sample(avctx, frame);
+        if (!sample)
+            return AVERROR(ENOMEM);
+        if (c->is_enc && c->is_video && c->codec_api) {
+            if (frame->pict_type == AV_PICTURE_TYPE_I || !c->sample_sent)
+                ICodecAPI_SetValue(c->codec_api, &ff_CODECAPI_AVEncVideoForceKeyFrame, FF_VAL_VT_UI4(1));
+        }
+    }
+    ret = mf_send_sample(avctx, sample);
+    if (sample)
+        IMFSample_Release(sample);
+    return ret;
+}
+
+static int mf_send_packet(AVCodecContext *avctx, const AVPacket *avpkt)
+{
+    int ret;
+    IMFSample *sample = NULL;
+    if (avpkt) {
+        sample = mf_avpacket_to_sample(avctx, avpkt);
+        if (!sample)
+            return AVERROR(ENOMEM);
+    }
+    ret = mf_send_sample(avctx, sample);
+    if (sample)
+        IMFSample_Release(sample);
+    return ret;
+}
+
+static int mf_receive_sample(AVCodecContext *avctx, IMFSample **out_sample)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    DWORD st;
+    MFT_OUTPUT_DATA_BUFFER out_buffers;
+    IMFSample *sample;
+    int ret = 0;
+
+    while (1) {
+        *out_sample = NULL;
+        sample = NULL;
+
+        if (c->async_events) {
+            if ((ret = mf_wait_events(avctx)) < 0)
+                return ret;
+            if (!c->async_have_output || c->draining_done) {
+                ret = 0;
+                break;
+            }
+        }
+
+        if (!c->out_stream_provides_samples) {
+            sample = ff_create_memory_sample(NULL, c->out_info.cbSize, c->out_info.cbAlignment);
+            if (!sample)
+                return AVERROR(ENOMEM);
+        }
+
+        out_buffers = (MFT_OUTPUT_DATA_BUFFER) {
+            .dwStreamID = c->out_stream_id,
+            .pSample = sample,
+        };
+
+        st = 0;
+        hr = IMFTransform_ProcessOutput(c->mft, 0, 1, &out_buffers, &st);
+
+        if (out_buffers.pEvents)
+            IMFCollection_Release(out_buffers.pEvents);
+
+        if (!FAILED(hr)) {
+            *out_sample = out_buffers.pSample;
+            ret = 0;
+            break;
+        }
+
+        if (out_buffers.pSample)
+            IMFSample_Release(out_buffers.pSample);
+
+        if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
+            if (c->draining)
+                c->draining_done = 1;
+            ret = 0;
+        } else if (hr == MF_E_TRANSFORM_STREAM_CHANGE) {
+            av_log(avctx,  AV_LOG_WARNING, "stream format change\n");
+            ret = mf_choose_output_type(avctx);
+            if (ret == 0) // we don't expect renegotiating the input type
+                ret = AVERROR_EXTERNAL;
+            if (ret > 0) {
+                ret = mf_setup_context(avctx);
+                if (ret >= 0) {
+                    c->async_have_output = 0;
+                    continue;
+                }
+            }
+        } else {
+            av_log(avctx, AV_LOG_ERROR, "failed processing output: %s\n", ff_hr_str(hr));
+            ret = AVERROR_EXTERNAL;
+        }
+
+        break;
+    }
+
+    c->async_have_output = 0;
+
+    if (ret >= 0 && !*out_sample)
+        ret = c->draining_done ? AVERROR_EOF : AVERROR(EAGAIN);
+
+    return ret;
+}
+
+static int mf_receive_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+    IMFSample *sample;
+    int ret;
+
+    ret = mf_receive_sample(avctx, &sample);
+    if (ret < 0)
+        return ret;
+
+    ret = mf_sample_to_avframe(avctx, sample, frame);
+    IMFSample_Release(sample);
+    return ret;
+}
+
+static int mf_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
+{
+    MFContext *c = avctx->priv_data;
+    IMFSample *sample;
+    int ret;
+
+    ret = mf_receive_sample(avctx, &sample);
+    if (ret < 0)
+        return ret;
+
+    ret = mf_sample_to_avpacket(avctx, sample, avpkt);
+    IMFSample_Release(sample);
+
+    if (c->send_extradata) {
+        ret = av_packet_add_side_data(avpkt, AV_PKT_DATA_NEW_EXTRADATA,
+                                      c->send_extradata,
+                                      c->send_extradata_size);
+        if (ret < 0) {
+            av_log(avctx, AV_LOG_ERROR, "Failed to add extradata: %i\n", ret);
+            return ret;
+        }
+        c->send_extradata = NULL;
+        c->send_extradata_size = 0;
+    }
+
+    return ret;
+}
+
+static void mf_flush(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr = IMFTransform_ProcessMessage(c->mft, MFT_MESSAGE_COMMAND_FLUSH, 0);
+    if (FAILED(hr))
+        av_log(avctx, AV_LOG_ERROR, "flushing failed\n");
+
+    hr = IMFTransform_ProcessMessage(c->mft, MFT_MESSAGE_NOTIFY_END_OF_STREAM, 0);
+    if (FAILED(hr))
+        av_log(avctx, AV_LOG_ERROR, "could not end streaming (%s)\n", ff_hr_str(hr));
+
+    // In async mode, we have to wait until previous events have been flushed.
+    if (c->async_events) {
+        hr = IMFMediaEventGenerator_QueueEvent(c->async_events, ff_METransformMarker,
+                                               &GUID_NULL, S_OK, NULL);
+        if (FAILED(hr)) {
+            av_log(avctx, AV_LOG_ERROR, "sending marker failed\n");
+        } else {
+            while (!c->async_marker) {
+                if (mf_wait_events(avctx) < 0)
+                    break; // just don't lock up
+                c->async_need_input = c->async_have_output = c->draining_done = 0;
+            }
+            c->async_marker = 0;
+        }
+    }
+
+    c->draining = 0;
+    c->sample_sent = 0;
+    c->draining_done = 0;
+    c->async_need_input = c->async_have_output = 0;
+    hr = IMFTransform_ProcessMessage(c->mft, MFT_MESSAGE_NOTIFY_START_OF_STREAM, 0);
+    if (FAILED(hr))
+        av_log(avctx, AV_LOG_ERROR, "stream restart failed\n");
+}
+
+// Most encoders seem to enumerate supported audio formats on the output types,
+// at least as far as channel configuration and sample rate is concerned. Pick
+// the one which seems to match best.
+static int64_t mf_enca_output_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    UINT32 t;
+    GUID tg;
+    int64_t score = 0;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, &t);
+    if (!FAILED(hr) && t == avctx->sample_rate)
+        score |= 1LL << 32;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, &t);
+    if (!FAILED(hr) && t == avctx->channels)
+        score |= 2LL << 32;
+
+    hr = IMFAttributes_GetGUID(type, &MF_MT_SUBTYPE, &tg);
+    if (!FAILED(hr)) {
+        if (IsEqualGUID(&c->main_subtype, &tg))
+            score |= 4LL << 32;
+    }
+
+    // Select the bitrate (lowest priority).
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_AVG_BYTES_PER_SECOND, &t);
+    if (!FAILED(hr)) {
+        int diff = (int)t - avctx->bit_rate / 8;
+        if (diff >= 0) {
+            score |= (1LL << 31) - diff; // prefer lower bitrate
+        } else {
+            score |= (1LL << 30) + diff; // prefer higher bitrate
+        }
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AAC_PAYLOAD_TYPE, &t);
+    if (!FAILED(hr) && t != 0)
+        return -1;
+
+    return score;
+}
+
+static int64_t mf_enca_input_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    HRESULT hr;
+    UINT32 t;
+    int64_t score = 0;
+
+    enum AVSampleFormat sformat = ff_media_type_to_sample_fmt((IMFAttributes *)type);
+    if (sformat == AV_SAMPLE_FMT_NONE)
+        return -1; // can not use
+
+    if (sformat == avctx->sample_fmt)
+        score |= 1;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, &t);
+    if (!FAILED(hr) && t == avctx->sample_rate)
+        score |= 2;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, &t);
+    if (!FAILED(hr) && t == avctx->channels)
+        score |= 4;
+
+    return score;
+}
+
+static int mf_enca_input_adjust(AVCodecContext *avctx, IMFMediaType *type)
+{
+    HRESULT hr;
+    UINT32 t;
+
+    enum AVSampleFormat sformat = ff_media_type_to_sample_fmt((IMFAttributes *)type);
+    if (sformat != avctx->sample_fmt) {
+        av_log(avctx, AV_LOG_ERROR, "unsupported input sample format set\n");
+        return AVERROR(EINVAL);
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, &t);
+    if (FAILED(hr) || t != avctx->sample_rate) {
+        av_log(avctx, AV_LOG_ERROR, "unsupported input sample rate set\n");
+        return AVERROR(EINVAL);
+    }
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, &t);
+    if (FAILED(hr) || t != avctx->channels) {
+        av_log(avctx, AV_LOG_ERROR, "unsupported input channel number set\n");
+        return AVERROR(EINVAL);
+    }
+
+    return 0;
+}
+
+static int64_t mf_encv_output_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    GUID tg;
+    HRESULT hr;
+    int score = -1;
+
+    hr = IMFAttributes_GetGUID(type, &MF_MT_SUBTYPE, &tg);
+    if (!FAILED(hr)) {
+        if (IsEqualGUID(&c->main_subtype, &tg))
+            score = 1;
+    }
+
+    return score;
+}
+
+static int mf_encv_output_adjust(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    AVRational frame_rate = av_inv_q(avctx->time_base);
+    frame_rate.den *= avctx->ticks_per_frame;
+
+    ff_MFSetAttributeSize((IMFAttributes *)type, &MF_MT_FRAME_SIZE, avctx->width, avctx->height);
+    IMFAttributes_SetUINT32(type, &MF_MT_INTERLACE_MODE, MFVideoInterlace_Progressive);
+
+    ff_MFSetAttributeRatio((IMFAttributes *)type, &MF_MT_FRAME_RATE, frame_rate.num, frame_rate.den);
+
+    // (MS HEVC supports eAVEncH265VProfile_Main_420_8 only.)
+    if (avctx->codec_id == AV_CODEC_ID_H264) {
+        UINT32 profile = eAVEncH264VProfile_Base;
+        switch (avctx->profile) {
+        case FF_PROFILE_H264_MAIN:
+            profile = eAVEncH264VProfile_Main;
+            break;
+        case FF_PROFILE_H264_HIGH:
+            profile = eAVEncH264VProfile_High;
+            break;
+        }
+        IMFAttributes_SetUINT32(type, &MF_MT_MPEG2_PROFILE, profile);
+    }
+
+    IMFAttributes_SetUINT32(type, &MF_MT_AVG_BITRATE, avctx->bit_rate);
+
+    // Note that some of the ICodecAPI options must be set before SetOutputType.
+    if (c->codec_api) {
+        if (avctx->bit_rate)
+            ICodecAPI_SetValue(c->codec_api, &ff_CODECAPI_AVEncCommonMeanBitRate, FF_VAL_VT_UI4(avctx->bit_rate));
+
+        if (c->opt_enc_rc >= 0)
+            ICodecAPI_SetValue(c->codec_api, &ff_CODECAPI_AVEncCommonRateControlMode, FF_VAL_VT_UI4(c->opt_enc_rc));
+
+        if (c->opt_enc_quality >= 0)
+            ICodecAPI_SetValue(c->codec_api, &ff_CODECAPI_AVEncCommonQuality, FF_VAL_VT_UI4(c->opt_enc_quality));
+
+        if (avctx->max_b_frames > 0)
+            ICodecAPI_SetValue(c->codec_api, &ff_CODECAPI_AVEncMPVDefaultBPictureCount, FF_VAL_VT_UI4(avctx->max_b_frames));
+
+        ICodecAPI_SetValue(c->codec_api, &ff_CODECAPI_AVEncH264CABACEnable, FF_VAL_VT_BOOL(1));
+    }
+
+    return 0;
+}
+
+static int64_t mf_encv_input_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    enum AVPixelFormat pix_fmt = ff_media_type_to_pix_fmt((IMFAttributes *)type);
+    if (pix_fmt != avctx->pix_fmt)
+        return -1; // can not use
+
+    return 0;
+}
+
+static int mf_encv_input_adjust(AVCodecContext *avctx, IMFMediaType *type)
+{
+    enum AVPixelFormat pix_fmt = ff_media_type_to_pix_fmt((IMFAttributes *)type);
+    if (pix_fmt != avctx->pix_fmt) {
+        av_log(avctx, AV_LOG_ERROR, "unsupported input pixel format set\n");
+        return AVERROR(EINVAL);
+    }
+
+    return 0;
+}
+
+static int mf_deca_input_adjust(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+
+    int sample_rate = avctx->sample_rate;
+    int channels = avctx->channels;
+
+    IMFAttributes_SetGUID(type, &MF_MT_MAJOR_TYPE, &MFMediaType_Audio);
+    IMFAttributes_SetGUID(type, &MF_MT_SUBTYPE, &c->main_subtype);
+
+    if (avctx->codec_id == AV_CODEC_ID_AAC) {
+        int assume_adts = avctx->extradata_size == 0;
+        // The first 12 bytes are the remainder of HEAACWAVEINFO.
+        // Fortunately all fields can be left 0.
+        size_t ed_size = 12 + (size_t)avctx->extradata_size;
+        uint8_t *ed = av_mallocz(ed_size);
+        if (!ed)
+            return AVERROR(ENOMEM);
+        if (assume_adts)
+            ed[0] = 1; // wPayloadType=1 (ADTS)
+        if (avctx->extradata_size) {
+            MPEG4AudioConfig c = {0};
+            memcpy(ed + 12, avctx->extradata, avctx->extradata_size);
+            if (avpriv_mpeg4audio_get_config(&c, avctx->extradata, avctx->extradata_size * 8, 0) >= 0) {
+                if (c.channels > 0)
+                    channels = c.channels;
+                sample_rate = c.sample_rate;
+            }
+        }
+        IMFAttributes_SetBlob(type, &MF_MT_USER_DATA, ed, ed_size);
+        av_free(ed);
+        IMFAttributes_SetUINT32(type, &MF_MT_AAC_PAYLOAD_TYPE, assume_adts ? 1 : 0);
+    } else if (avctx->extradata_size) {
+        IMFAttributes_SetBlob(type, &MF_MT_USER_DATA, avctx->extradata, avctx->extradata_size);
+    }
+
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, sample_rate);
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, channels);
+
+    // WAVEFORMATEX stuff; might be required by some codecs.
+    if (avctx->block_align)
+        IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_BLOCK_ALIGNMENT, avctx->block_align);
+    if (avctx->bit_rate)
+        IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_AVG_BYTES_PER_SECOND, avctx->bit_rate / 8);
+    if (avctx->bits_per_coded_sample)
+        IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_BITS_PER_SAMPLE, avctx->bits_per_coded_sample);
+
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_PREFER_WAVEFORMATEX, 1);
+
+    return 0;
+}
+
+static int64_t mf_decv_input_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    uint32_t fourcc;
+    GUID tg;
+    HRESULT hr;
+    int score = -1;
+
+    hr = IMFAttributes_GetGUID(type, &MF_MT_SUBTYPE, &tg);
+    if (!FAILED(hr)) {
+        if (IsEqualGUID(&c->main_subtype, &tg))
+            score = 1;
+
+        // For the MPEG-4 decoder (selects MPEG-4 variant via FourCC).
+        if (ff_fourcc_from_guid(&tg, &fourcc) >= 0 && fourcc == avctx->codec_tag)
+            score = 2;
+    }
+
+    return score;
+}
+
+static int mf_decv_input_adjust(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    int use_extradata = avctx->extradata_size && !c->bsfc;
+
+    IMFAttributes_SetGUID(type, &MF_MT_MAJOR_TYPE, &MFMediaType_Video);
+
+    hr = IMFAttributes_GetItem(type, &MF_MT_SUBTYPE, NULL);
+    if (FAILED(hr))
+        IMFAttributes_SetGUID(type, &MF_MT_SUBTYPE, &c->main_subtype);
+
+    ff_MFSetAttributeSize((IMFAttributes *)type, &MF_MT_FRAME_SIZE, avctx->width, avctx->height);
+
+    IMFAttributes_SetUINT32(type, &MF_MT_INTERLACE_MODE, MFVideoInterlace_MixedInterlaceOrProgressive);
+
+    if (avctx->sample_aspect_ratio.num)
+        ff_MFSetAttributeRatio((IMFAttributes *)type, &MF_MT_PIXEL_ASPECT_RATIO,
+                               avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
+
+    if (avctx->bit_rate)
+        IMFAttributes_SetUINT32(type, &MF_MT_AVG_BITRATE, avctx->bit_rate);
+
+    if (IsEqualGUID(&c->main_subtype, &MFVideoFormat_MP4V) ||
+        IsEqualGUID(&c->main_subtype, &MFVideoFormat_MP43) ||
+        IsEqualGUID(&c->main_subtype, &ff_MFVideoFormat_MP42)) {
+        if (avctx->extradata_size < 3 ||
+            avctx->extradata[0] || avctx->extradata[1] ||
+            avctx->extradata[2] != 1)
+            use_extradata = 0;
+    }
+
+    if (use_extradata)
+        IMFAttributes_SetBlob(type, &MF_MT_USER_DATA, avctx->extradata, avctx->extradata_size);
+
+    return 0;
+}
+
+static int64_t mf_deca_input_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    GUID tg;
+    int score = -1;
+
+    hr = IMFAttributes_GetGUID(type, &MF_MT_SUBTYPE, &tg);
+    if (!FAILED(hr)) {
+        if (IsEqualGUID(&c->main_subtype, &tg))
+            score = 1;
+    }
+
+    return score;
+}
+
+// Sort the types by preference:
+// - float sample format (highest)
+// - sample depth
+// - channel count
+// - sample rate (lowest)
+// Assume missing information means any is allowed.
+static int64_t mf_deca_output_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    UINT32 t;
+    int sample_fmt;
+    int64_t score = 0;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, &t);
+    if (!FAILED(hr))
+        score |= t;
+
+    // MF doesn't seem to tell us the native channel count. Try to get the
+    // same number of channels by looking at the input codec parameters.
+    // (With some luck they are correct, or even come from a parser.)
+    // Prefer equal or larger channel count.
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, &t);
+    if (!FAILED(hr)) {
+        int channels = av_get_channel_layout_nb_channels(avctx->request_channel_layout);
+        int64_t ch_score = 0;
+        int diff;
+        if (channels < 1)
+            channels = c->original_channels;
+        diff = (int)t - channels;
+        if (diff >= 0) {
+            ch_score |= (1LL << 7) - diff;
+        } else {
+            ch_score |= (1LL << 6) + diff;
+        }
+        score |= ch_score << 20;
+    }
+
+    sample_fmt = ff_media_type_to_sample_fmt((IMFAttributes *)type);
+    if (sample_fmt == AV_SAMPLE_FMT_NONE) {
+        score = -1;
+    } else {
+        score |= av_get_bytes_per_sample(sample_fmt) << 28;
+        if (sample_fmt == AV_SAMPLE_FMT_FLT)
+            score |= 1LL << 32;
+    }
+
+    return score;
+}
+
+static int mf_deca_output_adjust(AVCodecContext *avctx, IMFMediaType *type)
+{
+    int block_align;
+    HRESULT hr;
+
+    // Some decoders (wmapro) do not list any output types. I have no clue
+    // what we're supposed to do, and this is surely a MFT bug. Setting an
+    // arbitrary output type helps.
+    hr = IMFAttributes_GetItem(type, &MF_MT_MAJOR_TYPE, NULL);
+    if (!FAILED(hr))
+        return 0;
+
+    IMFAttributes_SetGUID(type, &MF_MT_MAJOR_TYPE, &MFMediaType_Audio);
+
+    block_align = 4;
+    IMFAttributes_SetGUID(type, &MF_MT_SUBTYPE, &MFAudioFormat_Float);
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_BITS_PER_SAMPLE, 32);
+
+    block_align *= avctx->channels;
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_NUM_CHANNELS, avctx->channels);
+
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_BLOCK_ALIGNMENT, block_align);
+
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_SAMPLES_PER_SECOND, avctx->sample_rate);
+
+    IMFAttributes_SetUINT32(type, &MF_MT_AUDIO_AVG_BYTES_PER_SECOND, block_align * avctx->sample_rate);
+
+    return 0;
+}
+
+static int64_t mf_decv_output_score(AVCodecContext *avctx, IMFMediaType *type)
+{
+    enum AVPixelFormat pix_fmt = ff_media_type_to_pix_fmt((IMFAttributes *)type);
+    if (pix_fmt == AV_PIX_FMT_NONE)
+        return -1;
+    if (pix_fmt == AV_PIX_FMT_P010)
+        return 2;
+    if (pix_fmt == AV_PIX_FMT_NV12)
+        return 1;
+    return 0;
+}
+
+static int mf_choose_output_type(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    int ret;
+    IMFMediaType *out_type = NULL;
+    int64_t out_type_score = -1;
+    int out_type_index = -1;
+    int n;
+
+    av_log(avctx, AV_LOG_VERBOSE, "output types:\n");
+    for (n = 0; ; n++) {
+        IMFMediaType *type;
+        int64_t score = -1;
+
+        hr = IMFTransform_GetOutputAvailableType(c->mft, c->out_stream_id, n, &type);
+        if (hr == MF_E_NO_MORE_TYPES || hr == E_NOTIMPL)
+            break;
+        if (hr == MF_E_TRANSFORM_TYPE_NOT_SET) {
+            av_log(avctx, AV_LOG_VERBOSE, "(need to set input type)\n");
+            ret = 0;
+            goto done;
+        }
+        if (FAILED(hr)) {
+            av_log(avctx, AV_LOG_ERROR, "error getting output type: %s\n", ff_hr_str(hr));
+            ret = AVERROR_EXTERNAL;
+            goto done;
+        }
+
+        av_log(avctx, AV_LOG_VERBOSE, "output type %d:\n", n);
+        ff_media_type_dump(avctx, type);
+
+        if (c->is_dec && c->is_video) {
+            score = mf_decv_output_score(avctx, type);
+        } else if (c->is_dec && c->is_audio) {
+            score = mf_deca_output_score(avctx, type);
+        } else if (c->is_enc && c->is_video) {
+            score = mf_encv_output_score(avctx, type);
+        } else if (c->is_enc && c->is_audio) {
+            score = mf_enca_output_score(avctx, type);
+        }
+
+        if (score > out_type_score) {
+            if (out_type)
+                IMFMediaType_Release(out_type);
+            out_type = type;
+            out_type_score = score;
+            out_type_index = n;
+            IMFMediaType_AddRef(out_type);
+        }
+
+        IMFMediaType_Release(type);
+    }
+
+    if (out_type) {
+        av_log(avctx, AV_LOG_VERBOSE, "picking output type %d.\n", out_type_index);
+    } else {
+        hr = MFCreateMediaType(&out_type);
+        if (FAILED(hr)) {
+            ret = AVERROR(ENOMEM);
+            goto done;
+        }
+    }
+
+    ret = 0;
+    if (c->is_dec && c->is_video) {
+        // not needed
+    } else if (c->is_dec && c->is_audio) {
+        ret = mf_deca_output_adjust(avctx, out_type);
+    } else if (c->is_enc && c->is_video) {
+        ret = mf_encv_output_adjust(avctx, out_type);
+    } else if (c->is_enc && c->is_audio) {
+        // not needed
+    }
+
+    if (ret >= 0) {
+        av_log(avctx, AV_LOG_VERBOSE, "setting output type:\n");
+        ff_media_type_dump(avctx, out_type);
+
+        hr = IMFTransform_SetOutputType(c->mft, c->out_stream_id, out_type, 0);
+        if (!FAILED(hr)) {
+            ret = 1;
+        } else if (hr == MF_E_TRANSFORM_TYPE_NOT_SET) {
+            av_log(avctx, AV_LOG_VERBOSE, "rejected - need to set input type\n");
+            ret = 0;
+        } else {
+            av_log(avctx, AV_LOG_ERROR, "could not set output type (%s)\n", ff_hr_str(hr));
+            ret = AVERROR_EXTERNAL;
+        }
+    }
+
+done:
+    if (out_type)
+        IMFMediaType_Release(out_type);
+    return ret;
+}
+
+static int mf_choose_input_type(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    int ret;
+    IMFMediaType *in_type = NULL;
+    int64_t in_type_score = -1;
+    int in_type_index = -1;
+    int n;
+
+    av_log(avctx, AV_LOG_VERBOSE, "input types:\n");
+    for (n = 0; ; n++) {
+        IMFMediaType *type = NULL;
+        int64_t score = -1;
+
+        hr = IMFTransform_GetInputAvailableType(c->mft, c->in_stream_id, n, &type);
+        if (hr == MF_E_NO_MORE_TYPES || hr == E_NOTIMPL)
+            break;
+        if (hr == MF_E_TRANSFORM_TYPE_NOT_SET) {
+            av_log(avctx, AV_LOG_VERBOSE, "(need to set output type 1)\n");
+            ret = 0;
+            goto done;
+        }
+        if (FAILED(hr)) {
+            av_log(avctx, AV_LOG_ERROR, "error getting input type: %s\n", ff_hr_str(hr));
+            ret = AVERROR_EXTERNAL;
+            goto done;
+        }
+
+        av_log(avctx, AV_LOG_VERBOSE, "input type %d:\n", n);
+        ff_media_type_dump(avctx, type);
+
+        if (c->is_dec && c->is_video) {
+            score = mf_decv_input_score(avctx, type);
+        } else if (c->is_dec && c->is_audio) {
+            score = mf_deca_input_score(avctx, type);
+        } else if (c->is_enc && c->is_video) {
+            score = mf_encv_input_score(avctx, type);
+        } else if (c->is_enc && c->is_audio) {
+            score = mf_enca_input_score(avctx, type);
+        }
+
+        if (score > in_type_score) {
+            if (in_type)
+                IMFMediaType_Release(in_type);
+            in_type = type;
+            in_type_score = score;
+            in_type_index = n;
+            IMFMediaType_AddRef(in_type);
+        }
+
+        IMFMediaType_Release(type);
+    }
+
+    if (in_type) {
+        av_log(avctx, AV_LOG_VERBOSE, "picking input type %d.\n", in_type_index);
+    } else {
+        // Some buggy MFTs (WMA encoder) fail to return MF_E_TRANSFORM_TYPE_NOT_SET.
+        if (c->is_enc) {
+            av_log(avctx, AV_LOG_VERBOSE, "(need to set output type 2)\n");
+            ret = 0;
+            goto done;
+        }
+        hr = MFCreateMediaType(&in_type);
+        if (FAILED(hr)) {
+            ret = AVERROR(ENOMEM);
+            goto done;
+        }
+    }
+
+    ret = 0;
+    if (c->is_dec && c->is_video) {
+        ret = mf_decv_input_adjust(avctx, in_type);
+    } else if (c->is_dec && c->is_audio) {
+        ret = mf_deca_input_adjust(avctx, in_type);
+    } else if (c->is_enc && c->is_video) {
+        ret = mf_encv_input_adjust(avctx, in_type);
+    } else if (c->is_enc && c->is_audio) {
+        ret = mf_enca_input_adjust(avctx, in_type);
+    }
+
+    if (ret >= 0) {
+        av_log(avctx, AV_LOG_VERBOSE, "setting input type:\n");
+        ff_media_type_dump(avctx, in_type);
+
+        hr = IMFTransform_SetInputType(c->mft, c->in_stream_id, in_type, 0);
+        if (!FAILED(hr)) {
+            ret = 1;
+        } else if (hr == MF_E_TRANSFORM_TYPE_NOT_SET) {
+            av_log(avctx, AV_LOG_VERBOSE, "rejected - need to set output type\n");
+            ret = 0;
+        } else {
+            av_log(avctx, AV_LOG_ERROR, "could not set input type (%s)\n", ff_hr_str(hr));
+            ret = AVERROR_EXTERNAL;
+        }
+    }
+
+done:
+    if (in_type)
+        IMFMediaType_Release(in_type);
+    return ret;
+}
+
+static int mf_negotiate_types(AVCodecContext *avctx)
+{
+    // This follows steps 1-5 on:
+    //  https://msdn.microsoft.com/en-us/library/windows/desktop/aa965264(v=vs.85).aspx
+    // If every MFT implementer does this correctly, this loop should at worst
+    // be repeated once.
+    int need_input = 1, need_output = 1;
+    int n;
+    for (n = 0; n < 2 && (need_input || need_output); n++) {
+        int ret;
+        ret = mf_choose_input_type(avctx);
+        if (ret < 0)
+            return ret;
+        need_input = ret < 1;
+        ret = mf_choose_output_type(avctx);
+        if (ret < 0)
+            return ret;
+        need_output = ret < 1;
+    }
+    if (need_input || need_output) {
+        av_log(avctx, AV_LOG_ERROR, "format negotiation failed (%d/%d)\n",
+               need_input, need_output);
+        return AVERROR_EXTERNAL;
+    }
+    return 0;
+}
+
+static int mf_setup_context(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    int ret;
+
+    hr = IMFTransform_GetInputStreamInfo(c->mft, c->in_stream_id, &c->in_info);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+    av_log(avctx, AV_LOG_VERBOSE, "in_info: size=%d, align=%d\n",
+           (int)c->in_info.cbSize, (int)c->in_info.cbAlignment);
+
+    hr = IMFTransform_GetOutputStreamInfo(c->mft, c->out_stream_id, &c->out_info);
+    if (FAILED(hr))
+        return AVERROR_EXTERNAL;
+    c->out_stream_provides_samples =
+        (c->out_info.dwFlags & MFT_OUTPUT_STREAM_PROVIDES_SAMPLES) ||
+        (c->out_info.dwFlags & MFT_OUTPUT_STREAM_CAN_PROVIDE_SAMPLES);
+    av_log(avctx, AV_LOG_VERBOSE, "out_info: size=%d, align=%d%s\n",
+           (int)c->out_info.cbSize, (int)c->out_info.cbAlignment,
+           c->out_stream_provides_samples ? " (provides samples)" : "");
+
+    if ((ret = mf_output_type_get(avctx)) < 0)
+        return ret;
+
+    return 0;
+}
+
+static LONG mf_codecapi_get_int(ICodecAPI *capi, const GUID *guid, LONG def)
+{
+    LONG ret = def;
+    VARIANT v;
+    HRESULT hr = ICodecAPI_GetValue(capi, &ff_CODECAPI_AVDecVideoMaxCodedWidth, &v);
+    if (FAILED(hr))
+        return ret;
+    if (v.vt == VT_I4)
+        ret = v.lVal;
+    if (v.vt == VT_UI4)
+        ret = v.ulVal;
+    VariantClear(&v);
+    return ret;
+}
+
+static int mf_check_codec_requirements(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+
+    if (c->is_dec && c->is_video && c->codec_api) {
+        LONG w = mf_codecapi_get_int(c->codec_api, &ff_CODECAPI_AVDecVideoMaxCodedWidth, 0);
+        LONG h = mf_codecapi_get_int(c->codec_api, &ff_CODECAPI_AVDecVideoMaxCodedHeight, 0);
+
+        if (w <= 0 || h <= 0)
+            return 0;
+
+        av_log(avctx, AV_LOG_VERBOSE, "Max. supported video size: %dx%d\n", (int)w, (int)h);
+
+        // avctx generally has only the cropped size. Assume the coded size is
+        // the same size, rounded up to the next macroblock boundary.
+        if (avctx->width > w || avctx->height > h) {
+            av_log(avctx, AV_LOG_ERROR, "Video size %dx%d larger than supported size.\n",
+                   avctx->width, avctx->height);
+            return AVERROR(EINVAL);
+        }
+    }
+
+    return 0;
+}
+
+static int mf_unlock_async(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    IMFAttributes *attrs;
+    UINT32 v;
+    int res = AVERROR_EXTERNAL;
+
+    // For hw encoding we unfortunately need it, otherwise don't risk it.
+    if (!(c->is_enc && c->is_video && c->opt_enc_d3d))
+        return 0;
+
+    hr = IMFTransform_GetAttributes(c->mft, &attrs);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "error retrieving MFT attributes: %s\n", ff_hr_str(hr));
+        goto err;
+    }
+
+    hr = IMFAttributes_GetUINT32(attrs, &MF_TRANSFORM_ASYNC, &v);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "error querying async: %s\n", ff_hr_str(hr));
+        goto err;
+    }
+
+    if (!v) {
+        av_log(avctx, AV_LOG_ERROR, "hardware MFT is not async\n");
+        goto err;
+    }
+
+    hr = IMFAttributes_SetUINT32(attrs, &MF_TRANSFORM_ASYNC_UNLOCK, TRUE);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "could not set async unlock: %s\n", ff_hr_str(hr));
+        goto err;
+    }
+
+    hr = IMFTransform_QueryInterface(c->mft, &IID_IMFMediaEventGenerator, (void **)&c->async_events);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "could not get async interface\n");
+        goto err;
+    }
+
+    res = 0;
+
+err:
+    IMFAttributes_Release(attrs);
+    return res;
+}
+
+static int mf_create(void *log, IMFTransform **mft, const AVCodec *codec, int use_hw)
+{
+    int is_audio = codec->type == AVMEDIA_TYPE_AUDIO;
+    int is_dec = av_codec_is_decoder(codec);
+    const CLSID *subtype = ff_codec_to_mf_subtype(codec->id);
+    MFT_REGISTER_TYPE_INFO reg = {0};
+    GUID category;
+    int ret;
+
+    *mft = NULL;
+
+    if (!subtype)
+        return AVERROR(ENOSYS);
+
+    reg.guidSubtype = *subtype;
+
+    if (is_dec) {
+        if (is_audio) {
+            reg.guidMajorType = MFMediaType_Audio;
+            category = MFT_CATEGORY_AUDIO_DECODER;
+        } else {
+            reg.guidMajorType = MFMediaType_Video;
+            category = MFT_CATEGORY_VIDEO_DECODER;
+        }
+
+        if ((ret = ff_instantiate_mf(log, category, &reg, NULL, use_hw, mft)) < 0)
+            return ret;
+    } else {
+        if (is_audio) {
+            reg.guidMajorType = MFMediaType_Audio;
+            category = MFT_CATEGORY_AUDIO_ENCODER;
+        } else {
+            reg.guidMajorType = MFMediaType_Video;
+            category = MFT_CATEGORY_VIDEO_ENCODER;
+        }
+
+        if ((ret = ff_instantiate_mf(log, category, NULL, &reg, use_hw, mft)) < 0)
+            return ret;
+    }
+
+    return 0;
+}
+
+static int mf_init(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    HRESULT hr;
+    int ret;
+    const CLSID *subtype = ff_codec_to_mf_subtype(avctx->codec_id);
+    int use_hw = 0;
+
+    c->original_channels = avctx->channels;
+
+    c->is_dec = av_codec_is_decoder(avctx->codec);
+    c->is_enc = !c->is_dec;
+    c->is_audio = avctx->codec_type == AVMEDIA_TYPE_AUDIO;
+    c->is_video = !c->is_audio;
+
+    if (c->is_video && c->is_enc && c->opt_enc_d3d)
+        use_hw = 1;
+
+    if (!subtype)
+        return AVERROR(ENOSYS);
+
+    c->main_subtype = *subtype;
+
+    if ((ret = mf_create(avctx, &c->mft, avctx->codec, use_hw)) < 0)
+        return ret;
+
+    if ((ret = mf_unlock_async(avctx)) < 0)
+        return ret;
+
+    hr = IMFTransform_QueryInterface(c->mft, &IID_ICodecAPI, (void **)&c->codec_api);
+    if (!FAILED(hr))
+        av_log(avctx, AV_LOG_VERBOSE, "MFT supports ICodecAPI.\n");
+
+    if (c->is_dec) {
+        const char *bsf = NULL;
+
+        if (avctx->codec->id == AV_CODEC_ID_H264 && avctx->extradata && avctx->extradata[0] == 1)
+            bsf = "h264_mp4toannexb";
+
+        if (avctx->codec->id == AV_CODEC_ID_HEVC && avctx->extradata && avctx->extradata[0] == 1)
+            bsf = "hevc_mp4toannexb";
+
+        if (bsf) {
+            const AVBitStreamFilter *bsfc = av_bsf_get_by_name(bsf);
+            if (!bsfc) {
+                ret = AVERROR(ENOSYS);
+                goto bsf_done;
+            }
+            if ((ret = av_bsf_alloc(bsfc, &c->bsfc)) < 0)
+                goto bsf_done;
+            if ((ret = avcodec_parameters_from_context(c->bsfc->par_in, avctx)) < 0)
+                goto bsf_done;
+            if ((ret = av_bsf_init(c->bsfc)) < 0)
+                goto bsf_done;
+            ret = 0;
+        bsf_done:
+            if (ret < 0) {
+                av_log(avctx, AV_LOG_ERROR, "Cannot open the %s BSF!\n", bsf);
+                return ret;
+            }
+        }
+    }
+
+    if ((ret = mf_check_codec_requirements(avctx)) < 0)
+        return ret;
+
+    hr = IMFTransform_GetStreamIDs(c->mft, 1, &c->in_stream_id, 1, &c->out_stream_id);
+    if (hr == E_NOTIMPL) {
+        c->in_stream_id = c->out_stream_id = 0;
+    } else if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "could not get stream IDs (%s)\n", ff_hr_str(hr));
+        return AVERROR_EXTERNAL;
+    }
+
+    if ((ret = mf_negotiate_types(avctx)) < 0)
+        return ret;
+
+    if ((ret = mf_setup_context(avctx)) < 0)
+        return ret;
+
+    hr = IMFTransform_ProcessMessage(c->mft, MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, 0);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "could not start streaming (%s)\n", ff_hr_str(hr));
+        return AVERROR_EXTERNAL;
+    }
+
+    hr = IMFTransform_ProcessMessage(c->mft, MFT_MESSAGE_NOTIFY_START_OF_STREAM, 0);
+    if (FAILED(hr)) {
+        av_log(avctx, AV_LOG_ERROR, "could not start stream (%s)\n", ff_hr_str(hr));
+        return AVERROR_EXTERNAL;
+    }
+
+    c->lavc_init_done = 1;
+
+    return 0;
+}
+
+static int mf_close(AVCodecContext *avctx)
+{
+    MFContext *c = avctx->priv_data;
+    int uninit_com = c->mft != NULL;
+    HANDLE lib;
+
+    if (c->codec_api)
+        ICodecAPI_Release(c->codec_api);
+
+    if (c->async_events)
+        IMFMediaEventGenerator_Release(c->async_events);
+
+    av_bsf_free(&c->bsfc);
+
+    // At least async MFTs require this to be called to truly terminate it.
+    // Of course, mingw is missing both the import lib stub for
+    // MFShutdownObject, as well as the entire IMFShutdown interface.
+    lib = LoadLibraryW(L"mf.dll");
+    if (lib) {
+        HRESULT (WINAPI *MFShutdownObject_ptr)(IUnknown *pUnk)
+            = (void *)GetProcAddress(lib, "MFShutdownObject");
+        if (MFShutdownObject_ptr)
+            MFShutdownObject_ptr((IUnknown *)c->mft);
+        FreeLibrary(lib);
+    }
+
+    IMFTransform_Release(c->mft);
+
+    if (uninit_com)
+        CoUninitialize();
+
+    if (c->is_enc) {
+        av_freep(&avctx->extradata);
+        avctx->extradata_size = 0;
+
+        av_freep(&c->send_extradata);
+        c->send_extradata_size = 0;
+    }
+
+    return 0;
+}
+
+#define OFFSET(x) offsetof(MFContext, x)
+
+#define MF_DECODER(MEDIATYPE, NAME, ID, OPTS) \
+    static const AVClass ff_ ## NAME ## _mf_decoder_class = {                  \
+        .class_name = #NAME "_mf",                                             \
+        .item_name  = av_default_item_name,                                    \
+        .option     = OPTS,                                                    \
+        .version    = LIBAVUTIL_VERSION_INT,                                   \
+    };                                                                         \
+    AVCodec ff_ ## NAME ## _mf_decoder = {                                     \
+        .priv_class     = &ff_ ## NAME ## _mf_decoder_class,                   \
+        .name           = #NAME "_mf",                                         \
+        .long_name      = NULL_IF_CONFIG_SMALL(#ID " via MediaFoundation"),    \
+        .type           = AVMEDIA_TYPE_ ## MEDIATYPE,                          \
+        .id             = AV_CODEC_ID_ ## ID,                                  \
+        .priv_data_size = sizeof(MFContext),                                   \
+        .init           = mf_init,                                             \
+        .close          = mf_close,                                            \
+        .send_packet    = mf_send_packet,                                      \
+        .receive_frame  = mf_receive_frame,                                    \
+        .flush          = mf_flush,                                            \
+        .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING,     \
+        .caps_internal  = FF_CODEC_CAP_SETS_PKT_DTS |                          \
+                          FF_CODEC_CAP_INIT_THREADSAFE |                       \
+                          FF_CODEC_CAP_INIT_CLEANUP,                           \
+    };
+
+MF_DECODER(AUDIO, ac3,         AC3,             NULL);
+MF_DECODER(AUDIO, eac3,        EAC3,            NULL);
+MF_DECODER(AUDIO, aac,         AAC,             NULL);
+MF_DECODER(AUDIO, mp1,         MP1,             NULL);
+MF_DECODER(AUDIO, mp2,         MP2,             NULL);
+MF_DECODER(AUDIO, mp3,         MP3,             NULL);
+MF_DECODER(AUDIO, wmav1,       WMAV1,           NULL);
+MF_DECODER(AUDIO, wmav2,       WMAV2,           NULL);
+MF_DECODER(AUDIO, wmalossless, WMALOSSLESS,     NULL);
+MF_DECODER(AUDIO, wmapro,      WMAPRO,          NULL);
+MF_DECODER(AUDIO, wmavoice,    WMAVOICE,        NULL);
+
+#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
+static const AVOption vdec_opts[] = {
+    {NULL}
+};
+
+#define MF_VIDEO_DECODER(NAME, ID) \
+    MF_DECODER(VIDEO, NAME, ID, vdec_opts);
+
+MF_VIDEO_DECODER(h264,         H264);
+MF_VIDEO_DECODER(hevc,         HEVC);
+MF_VIDEO_DECODER(vc1,          VC1);
+MF_VIDEO_DECODER(wmv1,         WMV1);
+MF_VIDEO_DECODER(wmv2,         WMV2);
+MF_VIDEO_DECODER(wmv3,         WMV3);
+MF_VIDEO_DECODER(mpeg2,        MPEG2VIDEO);
+MF_VIDEO_DECODER(mpeg4,        MPEG4);
+MF_VIDEO_DECODER(msmpeg4v1,    MSMPEG4V1);
+MF_VIDEO_DECODER(msmpeg4v2,    MSMPEG4V2);
+MF_VIDEO_DECODER(msmpeg4v3,    MSMPEG4V3);
+MF_VIDEO_DECODER(mjpeg,        MJPEG);
+
+#define MF_ENCODER(MEDIATYPE, NAME, ID, OPTS, EXTRA) \
+    static const AVClass ff_ ## NAME ## _mf_encoder_class = {                  \
+        .class_name = #NAME "_mf",                                             \
+        .item_name  = av_default_item_name,                                    \
+        .option     = OPTS,                                                    \
+        .version    = LIBAVUTIL_VERSION_INT,                                   \
+    };                                                                         \
+    AVCodec ff_ ## NAME ## _mf_encoder = {                                     \
+        .priv_class     = &ff_ ## NAME ## _mf_encoder_class,                   \
+        .name           = #NAME "_mf",                                         \
+        .long_name      = NULL_IF_CONFIG_SMALL(#ID " via MediaFoundation"),    \
+        .type           = AVMEDIA_TYPE_ ## MEDIATYPE,                          \
+        .id             = AV_CODEC_ID_ ## ID,                                  \
+        .priv_data_size = sizeof(MFContext),                                   \
+        .init           = mf_init,                                             \
+        .close          = mf_close,                                            \
+        .send_frame     = mf_send_frame,                                       \
+        .receive_packet = mf_receive_packet,                                   \
+        EXTRA                                                                  \
+        .capabilities   = AV_CODEC_CAP_DELAY,                                  \
+        .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE |                       \
+                          FF_CODEC_CAP_INIT_CLEANUP,                           \
+    };
+
+#define AFMTS \
+        .sample_fmts    = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,    \
+                                                         AV_SAMPLE_FMT_NONE },
+
+MF_ENCODER(AUDIO, aac,         AAC, NULL, AFMTS);
+MF_ENCODER(AUDIO, ac3,         AC3, NULL, AFMTS);
+MF_ENCODER(AUDIO, mp3,         MP3, NULL, AFMTS);
+
+#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
+static const AVOption venc_opts[] = {
+    {"rate_control",  "Select rate control mode", OFFSET(opt_enc_rc), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, VE, "rate_control"},
+    { "default",      "Default mode", 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, VE, "rate_control"},
+    { "cbr",          "CBR mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_CBR}, 0, 0, VE, "rate_control"},
+    { "pc_vbr",       "Peak constrained VBR mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_PeakConstrainedVBR}, 0, 0, VE, "rate_control"},
+    { "u_vbr",        "Unconstrained VBR mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_UnconstrainedVBR}, 0, 0, VE, "rate_control"},
+    { "quality",      "Quality mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_Quality}, 0, 0, VE, "rate_control" },
+    // The following rate_control modes require Windows 8.
+    { "ld_vbr",       "Low delay VBR mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_LowDelayVBR}, 0, 0, VE, "rate_control"},
+    { "g_vbr",        "Global VBR mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_GlobalVBR}, 0, 0, VE, "rate_control" },
+    { "gld_vbr",      "Global low delay VBR mode", 0, AV_OPT_TYPE_CONST, {.i64 = ff_eAVEncCommonRateControlMode_GlobalLowDelayVBR}, 0, 0, VE, "rate_control"},
+    {"quality",       "Quality", OFFSET(opt_enc_quality), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 100, VE},
+    {"hw_encoding",   "Force hardware encoding", OFFSET(opt_enc_d3d), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, VE, "hw_encoding"},
+    {NULL}
+};
+
+#define VFMTS \
+        .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,       \
+                                                        AV_PIX_FMT_YUV420P,    \
+                                                        AV_PIX_FMT_NONE },
+
+MF_ENCODER(VIDEO, h264,        H264, venc_opts, VFMTS);
+MF_ENCODER(VIDEO, hevc,        HEVC, venc_opts, VFMTS);
diff --git a/libavcodec/mf_utils.c b/libavcodec/mf_utils.c
new file mode 100644
index 0000000000..f9f0a9e39f
--- /dev/null
+++ b/libavcodec/mf_utils.c
@@ -0,0 +1,696 @@ 
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#define COBJMACROS
+#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0601
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0601
+#endif
+
+#include "mf_utils.h"
+
+HRESULT ff_MFGetAttributeSize(
+  _In_  IMFAttributes *pAttributes,
+  _In_  REFGUID       guidKey,
+  _Out_ UINT32        *punWidth,
+  _Out_ UINT32        *punHeight
+)
+{
+    UINT64 t;
+    HRESULT hr = IMFAttributes_GetUINT64(pAttributes, guidKey, &t);
+    if (!FAILED(hr)) {
+        *punWidth = t >> 32;
+        *punHeight = (UINT32)t;
+    }
+    return hr;
+}
+
+HRESULT ff_MFSetAttributeSize(
+  _In_ IMFAttributes *pAttributes,
+  _In_ REFGUID       guidKey,
+  _In_ UINT32        unWidth,
+  _In_ UINT32        unHeight
+)
+{
+    UINT64 t = (((UINT64)unWidth) << 32) | unHeight;
+    return IMFAttributes_SetUINT64(pAttributes, guidKey, t);
+}
+
+#define ff_MFSetAttributeRatio ff_MFSetAttributeSize
+#define ff_MFGetAttributeRatio ff_MFGetAttributeSize
+
+// Awesome: mingw lacks MTEnumEx in mfplat.a import lib. Screw it.
+HRESULT ff_MFTEnumEx(
+    _In_        GUID                   guidCategory,
+    _In_        UINT32                 Flags,
+    _In_  const MFT_REGISTER_TYPE_INFO *pInputType,
+    _In_  const MFT_REGISTER_TYPE_INFO *pOutputType,
+    _Out_       IMFActivate            ***pppMFTActivate,
+    _Out_       UINT32                 *pcMFTActivate
+    )
+{
+    HRESULT (WINAPI *MFTEnumEx_ptr)(
+    _In_        GUID                   guidCategory,
+    _In_        UINT32                 Flags,
+    _In_  const MFT_REGISTER_TYPE_INFO *pInputType,
+    _In_  const MFT_REGISTER_TYPE_INFO *pOutputType,
+    _Out_       IMFActivate            ***pppMFTActivate,
+    _Out_       UINT32                 *pcMFTActivate
+    ) = NULL;
+    HANDLE lib = GetModuleHandleW(L"mfplat.dll");
+    if (lib)
+        MFTEnumEx_ptr = (void *)GetProcAddress(lib, "MFTEnumEx");
+    if (!MFTEnumEx_ptr)
+        return E_FAIL;
+    return MFTEnumEx_ptr(guidCategory,
+                         Flags,
+                         pInputType,
+                         pOutputType,
+                         pppMFTActivate,
+                         pcMFTActivate);
+}
+
+char *ff_hr_str_buf(char *buf, size_t size, HRESULT hr)
+{
+#define HR(x) case x: return (char *) # x;
+    switch (hr) {
+    HR(S_OK)
+    HR(E_UNEXPECTED)
+    HR(MF_E_INVALIDMEDIATYPE)
+    HR(MF_E_INVALIDSTREAMNUMBER)
+    HR(MF_E_INVALIDTYPE)
+    HR(MF_E_TRANSFORM_CANNOT_CHANGE_MEDIATYPE_WHILE_PROCESSING)
+    HR(MF_E_TRANSFORM_TYPE_NOT_SET)
+    HR(MF_E_UNSUPPORTED_D3D_TYPE)
+    HR(MF_E_TRANSFORM_NEED_MORE_INPUT)
+    HR(MF_E_TRANSFORM_STREAM_CHANGE)
+    HR(MF_E_NOTACCEPTING)
+    HR(MF_E_NO_SAMPLE_TIMESTAMP)
+    HR(MF_E_NO_SAMPLE_DURATION)
+#undef HR
+    }
+    snprintf(buf, size, "%x", (unsigned)hr);
+    return buf;
+}
+
+// If fill_data!=NULL, initialize the buffer and set the length. (This is a
+// subtle but important difference: some decoders want CurrentLength==0 on
+// provided output buffers.)
+IMFSample *ff_create_memory_sample(void *fill_data, size_t size, size_t align)
+{
+    HRESULT hr;
+    IMFSample *sample;
+    IMFMediaBuffer *buffer;
+
+    hr = MFCreateSample(&sample);
+    if (FAILED(hr))
+        return NULL;
+
+    align = FFMAX(align, 16); // 16 is "recommended", even if not required
+
+    hr = MFCreateAlignedMemoryBuffer(size, align - 1, &buffer);
+    if (FAILED(hr))
+        return NULL;
+
+    if (fill_data) {
+        BYTE *tmp;
+
+        hr = IMFMediaBuffer_Lock(buffer, &tmp, NULL, NULL);
+        if (FAILED(hr)) {
+            IMFMediaBuffer_Release(buffer);
+            IMFSample_Release(sample);
+            return NULL;
+        }
+        memcpy(tmp, fill_data, size);
+
+        IMFMediaBuffer_SetCurrentLength(buffer, size);
+        IMFMediaBuffer_Unlock(buffer);
+    }
+
+    IMFSample_AddBuffer(sample, buffer);
+    IMFMediaBuffer_Release(buffer);
+
+    return sample;
+}
+
+enum AVSampleFormat ff_media_type_to_sample_fmt(IMFAttributes *type)
+{
+    HRESULT hr;
+    UINT32 bits;
+    GUID subtype;
+
+    hr = IMFAttributes_GetUINT32(type, &MF_MT_AUDIO_BITS_PER_SAMPLE, &bits);
+    if (FAILED(hr))
+        return AV_SAMPLE_FMT_NONE;
+
+    hr = IMFAttributes_GetGUID(type, &MF_MT_SUBTYPE, &subtype);
+    if (FAILED(hr))
+        return AV_SAMPLE_FMT_NONE;
+
+    if (IsEqualGUID(&subtype, &MFAudioFormat_PCM)) {
+        switch (bits) {
+        case 8:  return AV_SAMPLE_FMT_U8;
+        case 16: return AV_SAMPLE_FMT_S16;
+        case 32: return AV_SAMPLE_FMT_S32;
+        }
+    } else if (IsEqualGUID(&subtype, &MFAudioFormat_Float)) {
+        switch (bits) {
+        case 32: return AV_SAMPLE_FMT_FLT;
+        case 64: return AV_SAMPLE_FMT_DBL;
+        }
+    }
+
+    return AV_SAMPLE_FMT_NONE;
+}
+
+struct mf_pix_fmt_entry {
+    const GUID *guid;
+    enum AVPixelFormat pix_fmt;
+};
+
+static const struct mf_pix_fmt_entry mf_pix_fmts[] = {
+    {&MFVideoFormat_IYUV, AV_PIX_FMT_YUV420P},
+    {&MFVideoFormat_I420, AV_PIX_FMT_YUV420P},
+    {&MFVideoFormat_NV12, AV_PIX_FMT_NV12},
+    {&MFVideoFormat_P010, AV_PIX_FMT_P010},
+    {&MFVideoFormat_P016, AV_PIX_FMT_P016},
+    {&MFVideoFormat_YUY2, AV_PIX_FMT_YUYV422},
+};
+
+enum AVPixelFormat ff_media_type_to_pix_fmt(IMFAttributes *type)
+{
+    HRESULT hr;
+    GUID subtype;
+    int i;
+
+    hr = IMFAttributes_GetGUID(type, &MF_MT_SUBTYPE, &subtype);
+    if (FAILED(hr))
+        return AV_PIX_FMT_NONE;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(mf_pix_fmts); i++) {
+        if (IsEqualGUID(&subtype, mf_pix_fmts[i].guid))
+            return mf_pix_fmts[i].pix_fmt;
+    }
+
+    return AV_PIX_FMT_NONE;
+}
+
+const GUID *ff_pix_fmt_to_guid(enum AVPixelFormat pix_fmt)
+{
+    int i;
+
+    for (i = 0; i < FF_ARRAY_ELEMS(mf_pix_fmts); i++) {
+        if (mf_pix_fmts[i].pix_fmt == pix_fmt)
+            return mf_pix_fmts[i].guid;
+    }
+
+    return NULL;
+}
+
+// If this GUID is of the form XXXXXXXX-0000-0010-8000-00AA00389B71, then
+// extract the XXXXXXXX prefix as FourCC (oh the pain).
+int ff_fourcc_from_guid(GUID *guid, uint32_t *out_fourcc)
+{
+    if (guid->Data2 == 0 && guid->Data3 == 0x0010 &&
+        guid->Data4[0] == 0x80 &&
+        guid->Data4[1] == 0x00 &&
+        guid->Data4[2] == 0x00 &&
+        guid->Data4[3] == 0xAA &&
+        guid->Data4[4] == 0x00 &&
+        guid->Data4[5] == 0x38 &&
+        guid->Data4[6] == 0x9B &&
+        guid->Data4[7] == 0x71) {
+        *out_fourcc = guid->Data1;
+        return 0;
+    }
+
+    *out_fourcc = 0;
+    return AVERROR_UNKNOWN;
+}
+
+struct GUID_Entry {
+    const GUID *guid;
+    const char *name;
+};
+
+#define GUID_ENTRY(var) {&(var), # var}
+
+static struct GUID_Entry guid_names[] = {
+    GUID_ENTRY(MFT_FRIENDLY_NAME_Attribute),
+    GUID_ENTRY(MFT_TRANSFORM_CLSID_Attribute),
+    GUID_ENTRY(MFT_ENUM_HARDWARE_URL_Attribute),
+    GUID_ENTRY(MFT_CONNECTED_STREAM_ATTRIBUTE),
+    GUID_ENTRY(MFT_CONNECTED_TO_HW_STREAM),
+    GUID_ENTRY(MF_SA_D3D_AWARE),
+    GUID_ENTRY(ff_MF_SA_MINIMUM_OUTPUT_SAMPLE_COUNT),
+    GUID_ENTRY(ff_MF_SA_MINIMUM_OUTPUT_SAMPLE_COUNT_PROGRESSIVE),
+    GUID_ENTRY(ff_MF_SA_D3D11_BINDFLAGS),
+    GUID_ENTRY(ff_MF_SA_D3D11_USAGE),
+    GUID_ENTRY(ff_MF_SA_D3D11_AWARE),
+    GUID_ENTRY(ff_MF_SA_D3D11_SHARED),
+    GUID_ENTRY(ff_MF_SA_D3D11_SHARED_WITHOUT_MUTEX),
+    GUID_ENTRY(MF_MT_SUBTYPE),
+    GUID_ENTRY(MF_MT_MAJOR_TYPE),
+    GUID_ENTRY(MF_MT_AUDIO_SAMPLES_PER_SECOND),
+    GUID_ENTRY(MF_MT_AUDIO_NUM_CHANNELS),
+    GUID_ENTRY(MF_MT_AUDIO_CHANNEL_MASK),
+    GUID_ENTRY(MF_MT_FRAME_SIZE),
+    GUID_ENTRY(MF_MT_INTERLACE_MODE),
+    GUID_ENTRY(MF_MT_USER_DATA),
+    GUID_ENTRY(MF_MT_PIXEL_ASPECT_RATIO),
+    GUID_ENTRY(MFMediaType_Audio),
+    GUID_ENTRY(MFMediaType_Video),
+    GUID_ENTRY(MFAudioFormat_PCM),
+    GUID_ENTRY(MFAudioFormat_Float),
+    GUID_ENTRY(MFVideoFormat_H264),
+    GUID_ENTRY(MFVideoFormat_H264_ES),
+    GUID_ENTRY(MFVideoFormat_HEVC),
+    GUID_ENTRY(MFVideoFormat_HEVC_ES),
+    GUID_ENTRY(MFVideoFormat_MPEG2),
+    GUID_ENTRY(MFVideoFormat_MP43),
+    GUID_ENTRY(MFVideoFormat_MP4V),
+    GUID_ENTRY(MFVideoFormat_WMV1),
+    GUID_ENTRY(MFVideoFormat_WMV2),
+    GUID_ENTRY(MFVideoFormat_WMV3),
+    GUID_ENTRY(MFVideoFormat_WVC1),
+    GUID_ENTRY(MFAudioFormat_Dolby_AC3),
+    GUID_ENTRY(MFAudioFormat_Dolby_DDPlus),
+    GUID_ENTRY(MFAudioFormat_AAC),
+    GUID_ENTRY(MFAudioFormat_MP3),
+    GUID_ENTRY(MFAudioFormat_MSP1),
+    GUID_ENTRY(ff_MFAudioFormat_MSAUDIO1),
+    GUID_ENTRY(MFAudioFormat_WMAudioV8),
+    GUID_ENTRY(MFAudioFormat_WMAudioV9),
+    GUID_ENTRY(MFAudioFormat_WMAudio_Lossless),
+    GUID_ENTRY(MF_MT_ALL_SAMPLES_INDEPENDENT),
+    GUID_ENTRY(MF_MT_AM_FORMAT_TYPE),
+    GUID_ENTRY(MF_MT_COMPRESSED),
+    GUID_ENTRY(MF_MT_FIXED_SIZE_SAMPLES),
+    GUID_ENTRY(MF_MT_SAMPLE_SIZE),
+    GUID_ENTRY(MF_MT_WRAPPED_TYPE),
+    GUID_ENTRY(MF_MT_AAC_AUDIO_PROFILE_LEVEL_INDICATION),
+    GUID_ENTRY(MF_MT_AAC_PAYLOAD_TYPE),
+    GUID_ENTRY(MF_MT_AUDIO_AVG_BYTES_PER_SECOND),
+    GUID_ENTRY(MF_MT_AUDIO_BITS_PER_SAMPLE),
+    GUID_ENTRY(MF_MT_AUDIO_BLOCK_ALIGNMENT),
+    GUID_ENTRY(MF_MT_AUDIO_CHANNEL_MASK),
+    GUID_ENTRY(MF_MT_AUDIO_FLOAT_SAMPLES_PER_SECOND),
+    GUID_ENTRY(MF_MT_AUDIO_FOLDDOWN_MATRIX),
+    GUID_ENTRY(MF_MT_AUDIO_NUM_CHANNELS),
+    GUID_ENTRY(MF_MT_AUDIO_PREFER_WAVEFORMATEX),
+    GUID_ENTRY(MF_MT_AUDIO_SAMPLES_PER_BLOCK),
+    GUID_ENTRY(MF_MT_AUDIO_SAMPLES_PER_SECOND),
+    GUID_ENTRY(MF_MT_AUDIO_VALID_BITS_PER_SAMPLE),
+    GUID_ENTRY(MF_MT_AUDIO_WMADRC_AVGREF),
+    GUID_ENTRY(MF_MT_AUDIO_WMADRC_AVGTARGET),
+    GUID_ENTRY(MF_MT_AUDIO_WMADRC_PEAKREF),
+    GUID_ENTRY(MF_MT_AUDIO_WMADRC_PEAKTARGET),
+    GUID_ENTRY(MF_MT_ORIGINAL_WAVE_FORMAT_TAG),
+    GUID_ENTRY(MF_MT_AVG_BIT_ERROR_RATE),
+    GUID_ENTRY(MF_MT_AVG_BITRATE),
+    GUID_ENTRY(MF_MT_CUSTOM_VIDEO_PRIMARIES),
+    GUID_ENTRY(MF_MT_DEFAULT_STRIDE),
+    GUID_ENTRY(MF_MT_DRM_FLAGS),
+    GUID_ENTRY(MF_MT_FRAME_RATE),
+    GUID_ENTRY(MF_MT_FRAME_RATE_RANGE_MAX),
+    GUID_ENTRY(MF_MT_FRAME_RATE_RANGE_MIN),
+    GUID_ENTRY(MF_MT_FRAME_SIZE),
+    GUID_ENTRY(MF_MT_GEOMETRIC_APERTURE),
+    GUID_ENTRY(MF_MT_INTERLACE_MODE),
+    GUID_ENTRY(MF_MT_MAX_KEYFRAME_SPACING),
+    GUID_ENTRY(MF_MT_MINIMUM_DISPLAY_APERTURE),
+    GUID_ENTRY(MF_MT_MPEG_SEQUENCE_HEADER),
+    GUID_ENTRY(MF_MT_MPEG_START_TIME_CODE),
+    GUID_ENTRY(MF_MT_MPEG2_FLAGS),
+    GUID_ENTRY(MF_MT_MPEG2_LEVEL),
+    GUID_ENTRY(MF_MT_MPEG2_PROFILE),
+    GUID_ENTRY(MF_MT_ORIGINAL_4CC),
+    GUID_ENTRY(MF_MT_PAD_CONTROL_FLAGS),
+    GUID_ENTRY(MF_MT_PALETTE),
+    GUID_ENTRY(MF_MT_PAN_SCAN_APERTURE),
+    GUID_ENTRY(MF_MT_PAN_SCAN_ENABLED),
+    GUID_ENTRY(MF_MT_PIXEL_ASPECT_RATIO),
+    GUID_ENTRY(MF_MT_SOURCE_CONTENT_HINT),
+    GUID_ENTRY(MF_MT_TRANSFER_FUNCTION),
+    GUID_ENTRY(MF_MT_VIDEO_CHROMA_SITING),
+    GUID_ENTRY(MF_MT_VIDEO_LIGHTING),
+    GUID_ENTRY(MF_MT_VIDEO_NOMINAL_RANGE),
+    GUID_ENTRY(MF_MT_VIDEO_PRIMARIES),
+    GUID_ENTRY(ff_MF_MT_VIDEO_ROTATION),
+    GUID_ENTRY(MF_MT_YUV_MATRIX),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoThumbnailGenerationMode),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoDropPicWithMissingRef),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoSoftwareDeinterlaceMode),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoFastDecodeMode),
+    GUID_ENTRY(ff_CODECAPI_AVLowLatencyMode),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoH264ErrorConcealment),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoMPEG2ErrorConcealment),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoCodecType),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoDXVAMode),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoDXVABusEncryption),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoSWPowerLevel),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoMaxCodedWidth),
+    GUID_ENTRY(ff_CODECAPI_AVDecVideoMaxCodedHeight),
+    GUID_ENTRY(ff_CODECAPI_AVDecNumWorkerThreads),
+    GUID_ENTRY(ff_CODECAPI_AVDecSoftwareDynamicFormatChange),
+    GUID_ENTRY(ff_CODECAPI_AVDecDisableVideoPostProcessing),
+};
+
+char *ff_guid_str_buf(char *buf, size_t buf_size, GUID *guid)
+{
+    uint32_t fourcc;
+    int n;
+    for (n = 0; n < FF_ARRAY_ELEMS(guid_names); n++) {
+        if (IsEqualGUID(guid, guid_names[n].guid)) {
+            snprintf(buf, buf_size, "%s", guid_names[n].name);
+            return buf;
+        }
+    }
+
+    if (ff_fourcc_from_guid(guid, &fourcc) >= 0) {
+        snprintf(buf, buf_size, "<FourCC %s>", av_fourcc2str(fourcc));
+        return buf;
+    }
+
+    snprintf(buf, buf_size,
+             "{%8.8x-%4.4x-%4.4x-%2.2x%2.2x-%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x}",
+             (unsigned) guid->Data1, guid->Data2, guid->Data3,
+             guid->Data4[0], guid->Data4[1],
+             guid->Data4[2], guid->Data4[3],
+             guid->Data4[4], guid->Data4[5],
+             guid->Data4[6], guid->Data4[7]);
+    return buf;
+}
+
+void ff_attributes_dump(void *log, IMFAttributes *attrs)
+{
+    HRESULT hr;
+    UINT32 count;
+    int n;
+
+    hr = IMFAttributes_GetCount(attrs, &count);
+    if (FAILED(hr))
+        return;
+
+    for (n = 0; n < count; n++) {
+        GUID key;
+        MF_ATTRIBUTE_TYPE type;
+        char extra[80] = {0};
+        const char *name = NULL;
+
+        hr = IMFAttributes_GetItemByIndex(attrs, n, &key, NULL);
+        if (FAILED(hr))
+            goto err;
+
+        name = ff_guid_str(&key);
+
+        if (IsEqualGUID(&key, &MF_MT_AUDIO_CHANNEL_MASK)) {
+            UINT32 v;
+            hr = IMFAttributes_GetUINT32(attrs, &key, &v);
+            if (FAILED(hr))
+                goto err;
+            snprintf(extra, sizeof(extra), " (0x%x)", (unsigned)v);
+        } else if (IsEqualGUID(&key, &MF_MT_FRAME_SIZE)) {
+            UINT32 w, h;
+
+            hr = ff_MFGetAttributeSize(attrs, &MF_MT_FRAME_SIZE, &w, &h);
+            if (FAILED(hr))
+                goto err;
+            snprintf(extra, sizeof(extra), " (%dx%d)", (int)w, (int)h);
+        } else if (IsEqualGUID(&key, &MF_MT_PIXEL_ASPECT_RATIO) ||
+                   IsEqualGUID(&key, &MF_MT_FRAME_RATE)) {
+            UINT32 num, den;
+
+            hr = ff_MFGetAttributeRatio(attrs, &key, &num, &den);
+            if (FAILED(hr))
+                goto err;
+            snprintf(extra, sizeof(extra), " (%d:%d)", (int)num, (int)den);
+        }
+
+        hr = IMFAttributes_GetItemType(attrs, &key, &type);
+        if (FAILED(hr))
+            goto err;
+
+        switch (type) {
+        case MF_ATTRIBUTE_UINT32: {
+            UINT32 v;
+            hr = IMFAttributes_GetUINT32(attrs, &key, &v);
+            if (FAILED(hr))
+                goto err;
+            av_log(log, AV_LOG_VERBOSE, "   %s=%d%s\n", name, (int)v, extra);
+            break;
+        case MF_ATTRIBUTE_UINT64: {
+            UINT64 v;
+            hr = IMFAttributes_GetUINT64(attrs, &key, &v);
+            if (FAILED(hr))
+                goto err;
+            av_log(log, AV_LOG_VERBOSE, "   %s=%lld%s\n", name, (long long)v, extra);
+            break;
+        }
+        case MF_ATTRIBUTE_DOUBLE: {
+            DOUBLE v;
+            hr = IMFAttributes_GetDouble(attrs, &key, &v);
+            if (FAILED(hr))
+                goto err;
+            av_log(log, AV_LOG_VERBOSE, "   %s=%f%s\n", name, (double)v, extra);
+            break;
+        }
+        case MF_ATTRIBUTE_STRING: {
+            wchar_t s[512]; // being lazy here
+            hr = IMFAttributes_GetString(attrs, &key, s, sizeof(s), NULL);
+            if (FAILED(hr))
+                goto err;
+            av_log(log, AV_LOG_VERBOSE, "   %s='%ls'%s\n", name, s, extra);
+            break;
+        }
+        case MF_ATTRIBUTE_GUID: {
+            GUID v;
+            hr = IMFAttributes_GetGUID(attrs, &key, &v);
+            if (FAILED(hr))
+                goto err;
+            av_log(log, AV_LOG_VERBOSE, "   %s=%s%s\n", name, ff_guid_str(&v), extra);
+            break;
+        }
+        case MF_ATTRIBUTE_BLOB: {
+            UINT32 sz;
+            UINT8 buffer[100];
+            hr = IMFAttributes_GetBlobSize(attrs, &key, &sz);
+            if (FAILED(hr))
+                goto err;
+            if (sz <= sizeof(buffer)) {
+                // hex-dump it
+                char str[512] = {0};
+                size_t pos = 0;
+                hr = IMFAttributes_GetBlob(attrs, &key, buffer, sizeof(buffer), &sz);
+                if (FAILED(hr))
+                    goto err;
+                for (pos = 0; pos < sz; pos++) {
+                    const char *hex = "0123456789ABCDEF";
+                    if (pos * 3 + 3 > sizeof(str))
+                        break;
+                    str[pos * 3 + 0] = hex[buffer[pos] >> 4];
+                    str[pos * 3 + 1] = hex[buffer[pos] & 15];
+                    str[pos * 3 + 2] = ' ';
+                }
+                str[pos * 3 + 0] = 0;
+                av_log(log, AV_LOG_VERBOSE, "   %s=<blob size %d: %s>%s\n", name, (int)sz, str, extra);
+            } else {
+                av_log(log, AV_LOG_VERBOSE, "   %s=<blob size %d>%s\n", name, (int)sz, extra);
+            }
+            break;
+        }
+        case MF_ATTRIBUTE_IUNKNOWN: {
+            av_log(log, AV_LOG_VERBOSE, "   %s=<IUnknown>%s\n", name, extra);
+            break;
+        }
+        default:
+            av_log(log, AV_LOG_VERBOSE, "   %s=<unknown type>%s\n", name, extra);
+            break;
+        }
+        }
+
+        if (IsEqualGUID(&key, &MF_MT_SUBTYPE)) {
+            const char *fmt;
+            fmt = av_get_sample_fmt_name(ff_media_type_to_sample_fmt(attrs));
+            if (fmt)
+                av_log(log, AV_LOG_VERBOSE, "   FF-sample-format=%s\n", fmt);
+
+            fmt = av_get_pix_fmt_name(ff_media_type_to_pix_fmt(attrs));
+            if (fmt)
+                av_log(log, AV_LOG_VERBOSE, "   FF-pixel-format=%s\n", fmt);
+        }
+
+        continue;
+    err:
+        av_log(log, AV_LOG_VERBOSE, "   %s=<failed to get value>\n", name ? name : "?");
+    }
+}
+
+void ff_media_type_dump(void *log, IMFMediaType *type)
+{
+    ff_attributes_dump(log, (IMFAttributes *)type);
+}
+
+const CLSID *ff_codec_to_mf_subtype(enum AVCodecID codec)
+{
+    switch (codec) {
+    case AV_CODEC_ID_H264:              return &MFVideoFormat_H264;
+    case AV_CODEC_ID_HEVC:              return &MFVideoFormat_HEVC;
+    case AV_CODEC_ID_MJPEG:             return &MFVideoFormat_MJPG;
+    case AV_CODEC_ID_MPEG2VIDEO:        return &MFVideoFormat_MPEG2;
+    case AV_CODEC_ID_MPEG4:             return &MFVideoFormat_MP4V;
+    case AV_CODEC_ID_MSMPEG4V1:
+    case AV_CODEC_ID_MSMPEG4V2:         return &ff_MFVideoFormat_MP42;
+    case AV_CODEC_ID_MSMPEG4V3:         return &MFVideoFormat_MP43;
+    case AV_CODEC_ID_WMV1:              return &MFVideoFormat_WMV1;
+    case AV_CODEC_ID_WMV2:              return &MFVideoFormat_WMV2;
+    case AV_CODEC_ID_WMV3:              return &MFVideoFormat_WMV3;
+    case AV_CODEC_ID_VC1:               return &MFVideoFormat_WVC1;
+    case AV_CODEC_ID_AC3:               return &MFAudioFormat_Dolby_AC3;
+    case AV_CODEC_ID_EAC3:              return &MFAudioFormat_Dolby_DDPlus;
+    case AV_CODEC_ID_AAC:               return &MFAudioFormat_AAC;
+    case AV_CODEC_ID_MP1:               return &MFAudioFormat_MPEG;
+    case AV_CODEC_ID_MP2:               return &MFAudioFormat_MPEG;
+    case AV_CODEC_ID_MP3:               return &MFAudioFormat_MP3;
+    case AV_CODEC_ID_WMAVOICE:          return &MFAudioFormat_MSP1;
+    case AV_CODEC_ID_WMAV1:             return &ff_MFAudioFormat_MSAUDIO1;
+    case AV_CODEC_ID_WMAV2:             return &MFAudioFormat_WMAudioV8;
+    case AV_CODEC_ID_WMAPRO:            return &MFAudioFormat_WMAudioV9;
+    case AV_CODEC_ID_WMALOSSLESS:       return &MFAudioFormat_WMAudio_Lossless;
+    default:                            return NULL;
+    }
+}
+
+int ff_init_com_mf(void *log)
+{
+    HRESULT hr;
+
+    hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
+    if (hr == RPC_E_CHANGED_MODE) {
+        av_log(log, AV_LOG_ERROR, "COM must not be in STA mode\n");
+        return AVERROR(EINVAL);
+    } else if (FAILED(hr)) {
+        av_log(log, AV_LOG_ERROR, "could not initialize COM\n");
+        return AVERROR(ENOSYS);
+    }
+
+    hr = MFStartup(MF_VERSION, MFSTARTUP_FULL);
+    if (FAILED(hr)) {
+        av_log(log, AV_LOG_ERROR, "could not initialize MediaFoundation\n");
+        return AVERROR(ENOSYS);
+    }
+
+    return 0;
+}
+
+// Find and create a IMFTransform with the given input/output types.
+int ff_instantiate_mf(void *log,
+                      GUID category,
+                      MFT_REGISTER_TYPE_INFO *in_type,
+                      MFT_REGISTER_TYPE_INFO *out_type,
+                      int use_hw,
+                      IMFTransform **res)
+{
+    HRESULT hr;
+    int n;
+    int ret;
+    IMFActivate **activate;
+    UINT32 num_activate;
+    IMFActivate *winner = 0;
+    UINT32 flags;
+
+    ret = ff_init_com_mf(log);
+    if (ret < 0)
+        return ret;
+
+    flags = MFT_ENUM_FLAG_SORTANDFILTER;
+
+    if (use_hw) {
+        flags |= MFT_ENUM_FLAG_HARDWARE;
+    } else {
+        flags |= MFT_ENUM_FLAG_SYNCMFT;
+    }
+
+    hr = ff_MFTEnumEx(category, flags, in_type, out_type, &activate, &num_activate);
+    if (FAILED(hr))
+        goto error_uninit_mf;
+
+    if (log) {
+        if (!num_activate)
+            av_log(log, AV_LOG_ERROR, "could not find any MFT for the given media type\n");
+
+        for (n = 0; n < num_activate; n++) {
+            av_log(log, AV_LOG_VERBOSE, "MF %d attributes:\n", n);
+            ff_attributes_dump(log, (IMFAttributes *)activate[n]);
+        }
+    }
+
+    for (n = 0; n < num_activate; n++) {
+        if (log)
+            av_log(log, AV_LOG_VERBOSE, "activate MFT %d\n", n);
+        hr = IMFActivate_ActivateObject(activate[n], &IID_IMFTransform,
+                                        (void **)res);
+        if (FAILED(hr))
+            *res = NULL;
+        if (*res) {
+            winner = activate[n];
+            IMFActivate_AddRef(winner);
+            break;
+        }
+    }
+
+    for (n = 0; n < num_activate; n++)
+       IMFActivate_Release(activate[n]);
+    CoTaskMemFree(activate);
+
+    if (!*res) {
+        if (log)
+            av_log(log, AV_LOG_ERROR, "could not create MFT\n");
+        goto error_uninit_mf;
+    }
+
+    if (log) {
+        wchar_t s[512]; // being lazy here
+        IMFAttributes *attrs;
+        hr = IMFTransform_GetAttributes(*res, &attrs);
+        if (!FAILED(hr) && attrs) {
+
+            av_log(log, AV_LOG_VERBOSE, "MFT attributes\n");
+            ff_attributes_dump(log, attrs);
+            IMFAttributes_Release(attrs);
+        }
+
+        hr = IMFActivate_GetString(winner, &MFT_FRIENDLY_NAME_Attribute, s, sizeof(s), NULL);
+        if (!FAILED(hr))
+            av_log(log, AV_LOG_INFO, "MFT name: '%ls'\n", s);
+
+    }
+
+    IMFActivate_Release(winner);
+
+    return 0;
+
+error_uninit_mf:
+    return AVERROR(ENOSYS);
+}
+
+void ff_free_mf(IMFTransform **mft)
+{
+    if (*mft)
+        IMFTransform_Release(*mft);
+    *mft = NULL;
+}
diff --git a/libavcodec/mf_utils.h b/libavcodec/mf_utils.h
new file mode 100644
index 0000000000..f72c9ac12c
--- /dev/null
+++ b/libavcodec/mf_utils.h
@@ -0,0 +1,200 @@ 
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MF_UTILS_H
+#define AVCODEC_MF_UTILS_H
+
+#include <errno.h>
+
+#include <windows.h>
+#include <initguid.h>
+#include <wmcodecdsp.h>
+#include <mftransform.h>
+#include <mfapi.h>
+#include <mferror.h>
+#include <mfobjects.h>
+#include <ksmedia.h>
+#include <uuids.h>
+#include <codecapi.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+
+#include "avcodec.h"
+#include "internal.h"
+
+// ugly wrappers for mingw not providing these functions
+
+// the attribute/ratio setter/getters are guarded by __cplusplus
+
+HRESULT ff_MFGetAttributeSize(
+  _In_  IMFAttributes *pAttributes,
+  _In_  REFGUID       guidKey,
+  _Out_ UINT32        *punWidth,
+  _Out_ UINT32        *punHeight
+);
+
+HRESULT ff_MFSetAttributeSize(
+  _In_ IMFAttributes *pAttributes,
+  _In_ REFGUID       guidKey,
+  _In_ UINT32        unWidth,
+  _In_ UINT32        unHeight
+);
+
+#define ff_MFSetAttributeRatio ff_MFSetAttributeSize
+#define ff_MFGetAttributeRatio ff_MFGetAttributeSize
+
+// mingw declares this, but it's missing from the import lib
+HRESULT ff_MFTEnumEx(
+    _In_        GUID                   guidCategory,
+    _In_        UINT32                 Flags,
+    _In_  const MFT_REGISTER_TYPE_INFO *pInputType,
+    _In_  const MFT_REGISTER_TYPE_INFO *pOutputType,
+    _Out_       IMFActivate            ***pppMFTActivate,
+    _Out_       UINT32                 *pcMFTActivate
+);
+
+DEFINE_GUID(ff_MF_MT_VIDEO_ROTATION, 0xc380465d, 0x2271, 0x428c, 0x9b, 0x83, 0xec, 0xea, 0x3b, 0x4a, 0x85, 0xc1);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoAcceleration_H264, 0xf7db8a2f, 0x4f48, 0x4ee8, 0xae, 0x31, 0x8b, 0x6e, 0xbe, 0x55, 0x8a, 0xe2);
+
+// WMA1. Apparently there is no official GUID symbol for this.
+DEFINE_GUID(ff_MFAudioFormat_MSAUDIO1, 0x00000160, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71);
+
+// MP42 FourCC. I made up the symbol name.
+DEFINE_GUID(ff_MFVideoFormat_MP42, 0x3234504D, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71);
+
+// All the following symbols are missing from mingw.
+DEFINE_GUID(ff_CODECAPI_AVDecVideoThumbnailGenerationMode, 0x2efd8eee,0x1150,0x4328,0x9c,0xf5,0x66,0xdc,0xe9,0x33,0xfc,0xf4);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoDropPicWithMissingRef, 0xf8226383,0x14c2,0x4567,0x97,0x34,0x50,0x04,0xe9,0x6f,0xf8,0x87);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoSoftwareDeinterlaceMode, 0x0c08d1ce,0x9ced,0x4540,0xba,0xe3,0xce,0xb3,0x80,0x14,0x11,0x09);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoFastDecodeMode, 0x6b529f7d,0xd3b1,0x49c6,0xa9,0x99,0x9e,0xc6,0x91,0x1b,0xed,0xbf);
+DEFINE_GUID(ff_CODECAPI_AVLowLatencyMode, 0x9c27891a,0xed7a,0x40e1,0x88,0xe8,0xb2,0x27,0x27,0xa0,0x24,0xee);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoH264ErrorConcealment, 0xececace8,0x3436,0x462c,0x92,0x94,0xcd,0x7b,0xac,0xd7,0x58,0xa9);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoMPEG2ErrorConcealment, 0x9d2bfe18,0x728d,0x48d2,0xb3,0x58,0xbc,0x7e,0x43,0x6c,0x66,0x74);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoCodecType, 0x434528e5,0x21f0,0x46b6,0xb6,0x2c,0x9b,0x1b,0x6b,0x65,0x8c,0xd1);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoDXVAMode, 0xf758f09e,0x7337,0x4ae7,0x83,0x87,0x73,0xdc,0x2d,0x54,0xe6,0x7d);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoDXVABusEncryption, 0x42153c8b,0xfd0b,0x4765,0xa4,0x62,0xdd,0xd9,0xe8,0xbc,0xc3,0x88);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoSWPowerLevel, 0xfb5d2347,0x4dd8,0x4509,0xae,0xd0,0xdb,0x5f,0xa9,0xaa,0x93,0xf4);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoMaxCodedWidth, 0x5ae557b8,0x77af,0x41f5,0x9f,0xa6,0x4d,0xb2,0xfe,0x1d,0x4b,0xca);
+DEFINE_GUID(ff_CODECAPI_AVDecVideoMaxCodedHeight, 0x7262a16a,0xd2dc,0x4e75,0x9b,0xa8,0x65,0xc0,0xc6,0xd3,0x2b,0x13);
+DEFINE_GUID(ff_CODECAPI_AVDecNumWorkerThreads, 0x9561c3e8,0xea9e,0x4435,0x9b,0x1e,0xa9,0x3e,0x69,0x18,0x94,0xd8);
+DEFINE_GUID(ff_CODECAPI_AVDecSoftwareDynamicFormatChange, 0x862e2f0a,0x507b,0x47ff,0xaf,0x47,0x01,0xe2,0x62,0x42,0x98,0xb7);
+DEFINE_GUID(ff_CODECAPI_AVDecDisableVideoPostProcessing, 0xf8749193,0x667a,0x4f2c,0xa9,0xe8,0x5d,0x4a,0xf9,0x24,0xf0,0x8f);
+
+DEFINE_GUID(ff_CODECAPI_AVEncCommonRateControlMode,      0x1c0608e9, 0x370c, 0x4710, 0x8a, 0x58, 0xcb, 0x61, 0x81, 0xc4, 0x24, 0x23);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonLowLatency,    0x9d3ecd55, 0x89e8, 0x490a, 0x97, 0x0a, 0x0c, 0x95, 0x48, 0xd5, 0xa5, 0x6e);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonRealTime,      0x143a0ff6, 0xa131, 0x43da, 0xb8, 0x1e, 0x98, 0xfb, 0xb8, 0xec, 0x37, 0x8e);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonQuality,       0xfcbf57a3, 0x7ea5, 0x4b0c, 0x96, 0x44, 0x69, 0xb4, 0x0c, 0x39, 0xc3, 0x91);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonQualityVsSpeed, 0x98332df8, 0x03cd, 0x476b, 0x89, 0xfa, 0x3f, 0x9e, 0x44, 0x2d, 0xec, 0x9f);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonTranscodeEncodingProfile, 0x6947787C, 0xF508, 0x4EA9, 0xB1, 0xE9, 0xA1, 0xFE, 0x3A, 0x49, 0xFB, 0xC9);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonMeanBitRate,   0xf7222374, 0x2144, 0x4815, 0xb5, 0x50, 0xa3, 0x7f, 0x8e, 0x12, 0xee, 0x52);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonMeanBitRateInterval, 0xbfaa2f0c, 0xcb82, 0x4bc0, 0x84, 0x74, 0xf0, 0x6a, 0x8a, 0x0d, 0x02, 0x58);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonMaxBitRate,    0x9651eae4, 0x39b9, 0x4ebf, 0x85, 0xef, 0xd7, 0xf4, 0x44, 0xec, 0x74, 0x65);
+DEFINE_GUID(ff_CODECAPI_AVEncCommonMinBitRate,    0x101405b2, 0x2083, 0x4034, 0xa8, 0x06, 0xef, 0xbe, 0xdd, 0xd7, 0xc9, 0xff);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoCBRMotionTradeoff, 0x0d49451e, 0x18d5, 0x4367, 0xa4, 0xef, 0x32, 0x40, 0xdf, 0x16, 0x93, 0xc4);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoCodedVideoAccessUnitSize, 0xb4b10c15, 0x14a7, 0x4ce8, 0xb1, 0x73, 0xdc, 0x90, 0xa0, 0xb4, 0xfc, 0xdb);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoMaxKeyframeDistance,   0x2987123a, 0xba93, 0x4704, 0xb4, 0x89, 0xec, 0x1e, 0x5f, 0x25, 0x29, 0x2c);
+DEFINE_GUID(ff_CODECAPI_AVEncH264CABACEnable,    0xee6cad62, 0xd305, 0x4248, 0xa5, 0xe, 0xe1, 0xb2, 0x55, 0xf7, 0xca, 0xf8);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoContentType,   0x66117aca, 0xeb77, 0x459d, 0x93, 0xc, 0xa4, 0x8d, 0x9d, 0x6, 0x83, 0xfc);
+DEFINE_GUID(ff_CODECAPI_AVEncNumWorkerThreads,   0xb0c8bf60, 0x16f7, 0x4951, 0xa3, 0xb, 0x1d, 0xb1, 0x60, 0x92, 0x93, 0xd6);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoEncodeQP,      0x2cb5696b, 0x23fb, 0x4ce1, 0xa0, 0xf9, 0xef, 0x5b, 0x90, 0xfd, 0x55, 0xca);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoMinQP,         0x0ee22c6a, 0xa37c, 0x4568, 0xb5, 0xf1, 0x9d, 0x4c, 0x2b, 0x3a, 0xb8, 0x86);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoForceKeyFrame, 0x398c1b98, 0x8353, 0x475a, 0x9e, 0xf2, 0x8f, 0x26, 0x5d, 0x26, 0x3, 0x45);
+DEFINE_GUID(ff_CODECAPI_AVEncAdaptiveMode,       0x4419b185, 0xda1f, 0x4f53, 0xbc, 0x76, 0x9, 0x7d, 0xc, 0x1e, 0xfb, 0x1e);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoTemporalLayerCount,    0x19caebff, 0xb74d, 0x4cfd, 0x8c, 0x27, 0xc2, 0xf9, 0xd9, 0x7d, 0x5f, 0x52);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoUsage,         0x1f636849, 0x5dc1, 0x49f1, 0xb1, 0xd8, 0xce, 0x3c, 0xf6, 0x2e, 0xa3, 0x85);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoSelectLayer,        0xeb1084f5, 0x6aaa, 0x4914, 0xbb, 0x2f, 0x61, 0x47, 0x22, 0x7f, 0x12, 0xe7);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoRateControlParams,  0x87d43767, 0x7645, 0x44ec, 0xb4, 0x38, 0xd3, 0x32, 0x2f, 0xbc, 0xa2, 0x9f);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoSupportedControls,  0xd3f40fdd, 0x77b9, 0x473d, 0x81, 0x96, 0x6, 0x12, 0x59, 0xe6, 0x9c, 0xff);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoEncodeFrameTypeQP, 0xaa70b610, 0xe03f, 0x450c, 0xad, 0x07, 0x07, 0x31, 0x4e, 0x63, 0x9c, 0xe7);
+DEFINE_GUID(ff_CODECAPI_AVEncSliceControlMode,       0xe9e782ef, 0x5f18, 0x44c9, 0xa9, 0x0b, 0xe9, 0xc3, 0xc2, 0xc1, 0x7b, 0x0b);
+DEFINE_GUID(ff_CODECAPI_AVEncSliceControlSize,       0x92f51df3, 0x07a5, 0x4172, 0xae, 0xfe, 0xc6, 0x9c, 0xa3, 0xb6, 0x0e, 0x35);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoMaxNumRefFrame,    0x964829ed, 0x94f9, 0x43b4, 0xb7, 0x4d, 0xef, 0x40, 0x94, 0x4b, 0x69, 0xa0);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoMeanAbsoluteDifference,    0xe5c0c10f, 0x81a4, 0x422d, 0x8c, 0x3f, 0xb4, 0x74, 0xa4, 0x58, 0x13, 0x36);
+DEFINE_GUID(ff_CODECAPI_AVEncVideoMaxQP,             0x3daf6f66, 0xa6a7, 0x45e0, 0xa8, 0xe5, 0xf2, 0x74, 0x3f, 0x46, 0xa3, 0xa2);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVGOPSize,          0x95f31b26, 0x95a4, 0x41aa, 0x93, 0x03, 0x24, 0x6a, 0x7f, 0xc6, 0xee, 0xf1);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVGOPOpen,          0xb1d5d4a6, 0x3300, 0x49b1, 0xae, 0x61, 0xa0, 0x99, 0x37, 0xab, 0x0e, 0x49);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVDefaultBPictureCount, 0x8d390aac, 0xdc5c, 0x4200, 0xb5, 0x7f, 0x81, 0x4d, 0x04, 0xba, 0xba, 0xb2);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVProfile,          0xdabb534a, 0x1d99, 0x4284, 0x97, 0x5a, 0xd9, 0x0e, 0x22, 0x39, 0xba, 0xa1);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVLevel,            0x6ee40c40, 0xa60c, 0x41ef, 0x8f, 0x50, 0x37, 0xc2, 0x24, 0x9e, 0x2c, 0xb3);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVFrameFieldMode,   0xacb5de96, 0x7b93, 0x4c2f, 0x88, 0x25, 0xb0, 0x29, 0x5f, 0xa9, 0x3b, 0xf4);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVAddSeqEndCode,    0xa823178f, 0x57df, 0x4c7a, 0xb8, 0xfd, 0xe5, 0xec, 0x88, 0x87, 0x70, 0x8d);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVGOPSInSeq,        0x993410d4, 0x2691, 0x4192, 0x99, 0x78, 0x98, 0xdc, 0x26, 0x03, 0x66, 0x9f);
+DEFINE_GUID(ff_CODECAPI_AVEncMPVUseConcealmentMotionVectors,  0xec770cf3, 0x6908, 0x4b4b, 0xaa, 0x30, 0x7f, 0xb9, 0x86, 0x21, 0x4f, 0xea);
+
+DEFINE_GUID(ff_MF_SA_D3D11_BINDFLAGS, 0xeacf97ad, 0x065c, 0x4408, 0xbe, 0xe3, 0xfd, 0xcb, 0xfd, 0x12, 0x8b, 0xe2);
+DEFINE_GUID(ff_MF_SA_D3D11_USAGE, 0xe85fe442, 0x2ca3, 0x486e, 0xa9, 0xc7, 0x10, 0x9d, 0xda, 0x60, 0x98, 0x80);
+DEFINE_GUID(ff_MF_SA_D3D11_AWARE, 0x206b4fc8, 0xfcf9, 0x4c51, 0xaf, 0xe3, 0x97, 0x64, 0x36, 0x9e, 0x33, 0xa0);
+DEFINE_GUID(ff_MF_SA_D3D11_SHARED, 0x7b8f32c3, 0x6d96, 0x4b89, 0x92, 0x3, 0xdd, 0x38, 0xb6, 0x14, 0x14, 0xf3);
+DEFINE_GUID(ff_MF_SA_D3D11_SHARED_WITHOUT_MUTEX, 0x39dbd44d, 0x2e44, 0x4931, 0xa4, 0xc8, 0x35, 0x2d, 0x3d, 0xc4, 0x21, 0x15);
+DEFINE_GUID(ff_MF_SA_MINIMUM_OUTPUT_SAMPLE_COUNT, 0x851745d5, 0xc3d6, 0x476d, 0x95, 0x27, 0x49, 0x8e, 0xf2, 0xd1, 0xd, 0x18);
+DEFINE_GUID(ff_MF_SA_MINIMUM_OUTPUT_SAMPLE_COUNT_PROGRESSIVE, 0xf5523a5, 0x1cb2, 0x47c5, 0xa5, 0x50, 0x2e, 0xeb, 0x84, 0xb4, 0xd1, 0x4a);
+
+enum ff_eAVEncH264PictureType {
+    ff_eAVEncH264PictureType_IDR  = 0,
+    ff_eAVEncH264PictureType_P,
+    ff_eAVEncH264PictureType_B
+};
+enum ff_eAVEncCommonRateControlMode {
+    ff_eAVEncCommonRateControlMode_CBR                 = 0,
+    ff_eAVEncCommonRateControlMode_PeakConstrainedVBR  = 1,
+    ff_eAVEncCommonRateControlMode_UnconstrainedVBR    = 2,
+    ff_eAVEncCommonRateControlMode_Quality             = 3,
+    ff_eAVEncCommonRateControlMode_LowDelayVBR         = 4,
+    ff_eAVEncCommonRateControlMode_GlobalVBR           = 5,
+    ff_eAVEncCommonRateControlMode_GlobalLowDelayVBR   = 6
+};
+
+enum {
+    ff_METransformUnknown = 600,
+    ff_METransformNeedInput,
+    ff_METransformHaveOutput,
+    ff_METransformDrainComplete,
+    ff_METransformMarker,
+};
+
+char *ff_hr_str_buf(char *buf, size_t size, HRESULT hr);
+#define ff_hr_str(hr) ff_hr_str_buf((char[80]){0}, 80, hr)
+
+// Possibly compiler-dependent; the MS/MinGW definition for this is just crazy.
+#define FF_VARIANT_VALUE(type, contents) &(VARIANT){ .vt = (type), contents }
+
+#define FF_VAL_VT_UI4(v) FF_VARIANT_VALUE(VT_UI4, .ulVal = (v))
+#define FF_VAL_VT_BOOL(v) FF_VARIANT_VALUE(VT_BOOL, .boolVal = (v))
+
+IMFSample *ff_create_memory_sample(void *fill_data, size_t size, size_t align);
+enum AVSampleFormat ff_media_type_to_sample_fmt(IMFAttributes *type);
+enum AVPixelFormat ff_media_type_to_pix_fmt(IMFAttributes *type);
+const GUID *ff_pix_fmt_to_guid(enum AVPixelFormat pix_fmt);
+int ff_fourcc_from_guid(GUID *guid, uint32_t *out_fourcc);
+char *ff_guid_str_buf(char *buf, size_t buf_size, GUID *guid);
+#define ff_guid_str(guid) ff_guid_str_buf((char[80]){0}, 80, guid)
+void ff_attributes_dump(void *log, IMFAttributes *attrs);
+void ff_media_type_dump(void *log, IMFMediaType *type);
+const CLSID *ff_codec_to_mf_subtype(enum AVCodecID codec);
+int ff_init_com_mf(void *log);
+int ff_instantiate_mf(void *log,
+                      GUID category,
+                      MFT_REGISTER_TYPE_INFO *in_type,
+                      MFT_REGISTER_TYPE_INFO *out_type,
+                      int use_hw,
+                      IMFTransform **res);
+void ff_free_mf(IMFTransform **mft);
+
+#endif