pi@PiServer ~ $ ./texturecache.py playw "https://r7---sn-cu-ajt6.googlevideo.com/videoplayback?pl=25&initcwndbps=1710000&id=o-ALiSpp62TSlmERpCezbeVpzO9bSFS0cjaP3WuC_AegJo&dur=4163.639&ms=au&signature=1693BD6B18330F690397DEDA233945E997E7AD9D.3614432935A29F6CE06667B9AD51D751583048FD&ip=86.184.67.62&mv=m&ratebypass=yes&source=youtube&sver=3&key=yt5&requiressl=yes&mm=31&ipbits=0&itag=18&mt=1427753665&sparams=dur%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Cmm%2Cms%2Cmv%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&fexp=900720%2C907263%2C933119%2C934954%2C9405619%2C9406175%2C9406953%2C9407103%2C9407795%2C9408093%2C9408102%2C948124%2C948703%2C951511%2C951703%2C952612%2C957201%2C961404%2C961406%2C964704&upn=Fi3mhQK2sAQ&expire=1427775338"
libPlayer.ERROR: JSON response has no result!
{}

---------------- similarly with the youtube video in my posts ----------------
pi@PiServer ~ $ ./texturecache.py playw "https://cs634403.vk.me/u286502453/videos/8ad113bd02.720.mp4?extra=wb_kddY0OgHe-xwpr-cDb2Ix7rFydHkQDo_Fz_0bgeFOVxB4PwH73mME6GSXOSj1GiJzO05WBDcOHI_KsTSxmFMf40DnIVM"
libPlayer.ERROR: JSON response has no result!
{}
pi@PiServer ~ $ python --version
Python 2.7.3