403 Forbidden when playing Google Drive mp4 url

Question

I have a problem. I put some avi files on Google Drive, and then get the encoded url by API https://docs.google.com/get_video_info. For example:

https://docs.google.com/get_video_info?authuser=&docid=0B38HRoqwzjhaaGhxY05EVGtseEk&access_token=ya29.CjBIA-lF_6wfVDrsQogxgBvgIzE7eeojipyCfLAY8vPFpevXqE1pSAOF3gK1tFAUaFc

Then I get an url for encoded mp4 video file from the previous response, like:

https://r5---sn-un57en7e.c.docs.google.com/videoplayback?requiressl=yes&id=a63c37855c89aa75&itag=18&source=webdrive&ttl=transient&app=explorer&ip=211.72.69.111&ipbits=0&expire=1471969935&cp=QVJMU0pfWFlRRlhNOkJ0YmtFem5ONGd0&sparams=requiressl,id,itag,source,ttl,ip,ipbits,expire,cp&signature=1015317AD77B0A23C3D8C216D83C0D0BE6B96725.9D5ED9740E885B0FCACBDBF19257DB4030DC1432&key=ck2&mm=30&mn=sn-un57en7e&ms=nxu&mt=1471954897&mv=u&nh=IgpwcjAxLnRzYTAxKgkxMjcuMC4wLjE&pl=24&sc=yes

Paste this url into vlc or firefox, none of them can play it. Firefox will tell me "403 Forbidden". Actually, I use this way to play mp4 url always works until TODAY. I don't have any idea why this doesn't work now.Does anyone can give me some hints?

Answer 1

you need to set the DRIVE_STREAM cookie