this kind of video out is through micro-usb, normal type one. You can find Joe is using a Lumia 800 in his hand in the XBOX video.
I asked him through twitter and received an answer of "Special Software build".
I did some research and dig into the register keys. Found something.
This is a special driver that only shared inside the MS and normally won't be out anytime soon.
（Deleted because they are no longer of any means）
----Update on 2012.Feb 9 China Time----
Big Step Forward, since the DFT Rom released, the exe can be run in WP7.
One thing I need now is if someone can build an app for me, which calls the changeusbprofile.exe under /windows
Things here is I'm using the Opera mini launcher to call it, but the path is under /application, not under /Windows, and the result is my computer can not detect the phone when the phone reboots. I think this may relates to the path I call.
I'm not a typical tech-man, so I need help here. Thanks!
Today I really thank @GoodDayToDie and @ultrashot for helping so many.
@ultrashot sent me a xap app that does the job, calling the changusbprofile.exe in Windows folder. Although result is the same with yesterday, but now I am more sure that we are one more step closer to our destination. I'll wait my new micro usb cables to arrive and then I'll make a second try. Thank you again!!! Can't reach here without you kind people~~~
----Update on 2012.Feb 10 19:22 China Shanghai Time----
I removed the attachments because the project is now on special stage. I will put them back after the feature works, or after I can't make it work. Either way, I will put them back~~~Don't worry.
----Update on 2012.Feb 12 15:22 China Shanghai Time----
New cable arrived and still my computer can't recognize the phone in usb video out mode...I changed a computer and till the same...
Will think about next steps...if I can't make figure it out next week, I shall put everything at present stage onto here.
----Update on 2012.Feb 14 10:22 China Shanghai Time----
Think it over, and think there is still a hill in front of us. The changeusbprofile.exe seems just to be a toggle, like a shortcut. But the real port of usb video out hasn't been enabled. On my samsung focus, I checked the *#7284# in Diagnosis Mode before and after I ran the changeusbprofile. The thing changes from Zun to Tethering, while it's not the real tethering mode. I think the changeusbprofile is just doing a job like changing usb mode from zune to tethering or to Diag mode. So that's to say, we haven't really seen the iceberg yet. I'll keep finding and hoping that anyone can get any help on this. This may requires me to dig some post in Windows Mobile age, since some parts between the two system are same.
And I contacted the kind secret person, and get the news that the usb cable doesn't really matters. Any short cables should serve the job. So our attention should move back onto the phone again.
----Update on 2012.Feb 15 15:13 China Shanghai Time----
I figured it out~The changeusbprofile changes the value in Registry Local_Machine/Drivers/USB/FunctionDrivers, DefaultClientDriver=CompositeFn to UFN_VIDSTREAM_CLASS. Every value change here points to a folder in FunctionDrivers.
in Samsung Focus, it is like below:
/CompositeFn_SAMSUNG;(This is the one when we choose Diag Mode in Diagnosis App *#7284#)
There is no UFN_VIDSTREAM_CLASS folder here, so that explains why the changeusbprofile works well while it is no use at all...
Next step, I will try looking for the Setting in Asus E600, if I can find someone who has this device. Maybe Samsung Taylor will do the same.
If you can help, don't hesitate~~
----Update on 2012.Mar 3 15:13 China Shanghai Time----
Updated some info
I looked into the Key name, UFN_VIDSTREAM_CLASS, which is very unique way to name.
This belongs to a USB function Driver, and the only thing I saw similar is a UFN_PRINTER_CLASS, which is in Wince 6.0
And you may check this
So I'm still waiting for somebody who can offer any help on this. I talked with Mr. Yang Zhongke, who invented RecX prototype, fiinix optimized that, but not the inventor.
His way is not quite efficient and seems can't go further. But he will do some work for this in a foreseeable future.
Any one has a Asus E600, plz contact me, will keep your name secret.
Project suspended, cuz according to a source, WP8 will have Remote desktop support.
"The ability to take screenshots (via Remote Desktop, no less) will be a feature of Windows Phone 8. I don't see anything changing before that."
"Only that you will be able to remote desktop into the Phone, which should allow you to create videos and/or screenshots from a PC."
So just be patient, and it will come. No need for this project to keep going.
At last, use my words in the email I talked with the source.
Me:Really puzzled why MS doesn't release such a cool and convenient feature. Haven't they realized that when people use this feature, they are promoting WP7 for free...(Actually I've promoted in this way for Android as a "side effect" in the company I work in for three months and as a result more than 20 Samsung Galaxy SII were added during this period. Google and Samsung should thank me...)
A very kind man has sent me the 7003 LG Panther ROM, which has the necessary file, and we successfully got them out. But I just lost my sell phone, so it may take some time to buy a new WP7 Samsung focus. Maybe next week. Very close to the final line. God bless us. Cheers.
--Update on 2012.August 20 22:37 China Shanghai Time--
I tried to make it work while it still failed. The computer recognised my cellphone as WM7VIDSTREAM while the PC side app still does n't work.
I think this could be related to that the PC side app is for mango and the cellphone side is grabbed from 7003. I uploaded the VSD folder which contains what I think are the everything we need for now.
If anyone wants to build an rom, now it's the time.
One friend, who you will know someday later, gave me a home-make cab which includes the pkg file from Microsoft. Right now it is not for public for now. But it is successful.
Although I started this project, but as it always be, not a technique project but a sociology one. So there are many things and many people's benefit to consider. So just wait for some time, it is there when it is there.
For technique part, the pkg file includes as same as the VSD.rar in the attachment.
--Update on 2012.August 28 19:43 China Shanghai Time--
Check here, you have what you want. http://forum.xda-developers.com/show....php?t=1856509
This is a long story, and finally it ended beautifully.
"Always be closing"--Glengarry Glen Ross (1992)
To me? Yeah, this project closed.