Youtube: Almost all download urls won't play

[tonywamba]

For the last 10 Days I'm not being able to get Youtube mp4 link for almost all youtube videos top play. They all fail to play even when I paste them in Google Chrome. I even tried changing "https" to "HTTP" in the links but still no luck. Two of my Windows Store Apps depends on this and I'm losing my users because of this. Been using MyToolKit for like 2 years and this is the first time I face this issue.
I'm using GetVideoUriAsync() to retrieve Youtube Download links.
for this Videos: https://www.youtube.com/watch?v=b8m9zhNAgKs I get this download link which doesn't work on both MediaElement and Google Chrome: https://r2---sn-a5mlrn7k.googlevideo.com/videoplayback?sparams=clen,dur,ei,gir,id,initcwndbps,ip,ipbits,itag,lmt,mime,mm,mn,ms,mv,pl,ratebypass,requiressl,source,upn,usequic,expire&ei=IJaoWKnROo_z-gO9t42ICQ&itag=18&ratebypass=yes&ip=172.56.16.29&clen=26947602&expire=1487465089&mv=m&dur=293.059&ms=au&ipbits=0&mm=31&mn=sn-a5mlrn7k&gir=yes&id=o-AOo8UKFlvcOSHjuywZXsoVQGE2Mt0usgMw5Gvqbf2N9_&initcwndbps=82500&upn=RPzAt2Amegc&requiressl=yes&lmt=1478830296219007&mime=video/mp4&pl=23&source=youtube&usequic=no&mt=1487443345&key=yt6&signature=C6C69B64C5B0462CE8CDAA526EC630E6EAB2E87035A54EB2F28DBB35703F9E113A17BB716AE26DED28.8.

Or this music video: https://www.youtube.com/watch?v=o1AV068nAEo for which I get this download link that doesn't work: https://r9---sn-a5m7lner.googlevideo.com/videoplayback?mime=video/mp4&itag=18&key=yt6&ipbits=0&lmt=1481463972611900&usequic=no&source=youtube&mm=31&mn=sn-a5m7lner&upn=VNHqIlY-du8&dur=239.978&mt=1487443225&mv=m&ms=au&ip=172.56.16.29&clen=19113279&ei=kpWoWIfKBcvm-QP967TYDg&id=o-AN3ZULOdJ_QSAOX6_IhHWhIBpVSDnPN88W6NnDFFFGhh&sparams=clen,dur,ei,gcr,gir,id,initcwndbps,ip,ipbits,itag,lmt,mime,mm,mn,ms,mv,pl,ratebypass,requiressl,source,upn,usequic,expire&initcwndbps=82500&gir=yes&expire=1487464946&pl=23&requiressl=yes&ratebypass=yes&gcr=us&signature=6C6CA84B8C7BDC54BDC19E2E4706467994277959C9D197EBCD7B927064F8E34CBCC36FDB2CA24D8710.0.

this video work though: https://www.youtube.com/watch?v=NcK4upEvqHg

I get this link: https://r2---sn-a5m7ln76.googlevideo.com/videoplayback?expire=1487464566&dur=633.742&pl=23&gir=yes&usequic=no&ratebypass=yes&lmt=1478999065976926&upn=v73JHvy6wBk&id=o-ALgRLQ13jVSzz8WftJJZwzxltULxNLRkpk8TWhc2pRBZ&ei=FpSoWMWsCcO0-gONm5DIDA&initcwndbps=85000&sparams=clen,dur,ei,gir,id,initcwndbps,ip,ipbits,itag,lmt,mime,mm,mn,ms,mv,pl,ratebypass,requiressl,source,upn,usequic,expire&key=yt6&ip=172.56.16.29&source=youtube&ms=au&mv=m&mt=1487442687&mn=sn-a5m7ln76&mm=31&requiressl=yes&clen=34505068&mime=video/mp4&itag=18&ipbits=0&signature=5A824461FAD782F9EC8E2B4738F0F31937C56054.1F5BDD644F8F4D21BB8DD4D2AF3C3DF488F13EA9

I noticed that there is always a dot[.] at the end of those links that doesn't work. Don't know if this has anything to do with it.

Anyone having this issue? Any help will save me. Thank You.

[RicoSuter]

YouTube probably change the way the are encoding the urls on the website... Have you tried to debug the code and find the location of the problem? There are many unit tests for this.

[tonywamba]

Thanks for your reply @RSuter . When debugging I don't run into any exception or error. The framework returns the Uri properly. The only problem is that the returned Url doesn't work. Can the unit tests assert that a returned URL is valid or invalid?

[RicoSuter]

Yes the unit tests check this... Most should be running

[yeejmeem]

I have the same issue. Can anybody help?

[verinder-bindra]

I have the same isssue ..please help

[Breakthru001]

tonywamba,
Just FYI, if you are testing with the .Net MediaElement, that control will not handle any HTTPS URIs (secure https). Https throws an exception, when you set the MediaElement Source property. At least not the Windows version of the MediaElement. The Silverlight MediaElement does support HTTPS. Microsoft seems unwilling to fix it. :-(

[tonywamba]

@SmokinLeather I'm using Microsoft Player Framework which does support https(I think) but it still ain't working. Especially music videos and Vevo videos. Other Videos like tutorials ,movie trailers are working well

[Breakthru001]

@tonywamba ,
Doing some testing on this...
I notice in the response content from Youtube that all the signatures it returns are in the format of two Hex strings (40 chars long) separated by a dot "."
Example
080EAA0A031790627F2B9B09A15E8294560AE7DE.6C03024D3EBF43B0F34C494538074D23CF767806

The video you mentioned that works for you has the signature in that format.
Your non-working urls have a different signature format.
Maybe something to investigate.

[verinder-bindra]

@RSuter if you want i can pay to have this issue fixed. we are all stuck

[RicoSuter]

@everyone: What have you already found out so far?

[verinder-bindra]

@RSuter nothing yet... R u working on fixing it?