如何下载更快的YouTube音频或视频文件

Question

我从youtube-dl获取youtube视频下载链接。

示例链接：https：//r4---sn-hgn7rne7.googlevideo.com/videoplayback?id=o- = o-afahzy_ewhput9l2wwwk4oxacbbsumbiwx0equmososuhzbt间fl6um8gspj7ygcg＆amp;mime =音频％2FMP4＆amp; gir =是＆amp; clen = 4081843＆amp; dur = 252.168＆amp; lmt = 1557823006263504＆amp; fvip = 6＆amp; emp; eStarive = yes＆amp; c = web＆amp = web＆amp = 55532＆ap = 555313＆ap = 555332＆ap = 55332＆ap = 55333＆ap = 555332＆ap = 55333＆ap = 55332＆ap = 55333＆ap = 55333＆amp; 800％3AC1％3A，源＆amp; key = cms1＆amp; signature = 1F0A1C8B008BB96D33F3268C673FD171790CA.7F63590873FF473FF47EC47EC47EC47EC47EC47EC47EC47EC45D228D28F74D66684CCC1154C1＆AMP = YEAM = en_aksu _-_ aktan_ne_heber_official_audio.m4a＆amp; amp; cms_redirect = yes＆amp; mip = 46.196.21.21.103＆amp; mm = 31MS = Au＆amp; mt = 1557998299＆amp; mv = m

当我从任何浏览器下载它时，它会在5秒内下载，但是当我尝试从Python下载它时，链接下载1分钟。我在不同的网络中尝试了相同的大小，但结果相同。

对于python，我使用此：

   import urllib
   urllib.urlretrieve(url,"file.m4a")

我不知道Google期望我任何标题或其他东西可以更快地下载。

Answer 1

我怀疑您的浏览器已缓存文件，或者正在使用缓存文件的代理。我尝试从YouTube下载文件，并以三种不同的方式获得了类似的持续时间。

# Note this is how to get the youtube url: `youtube-dl -f 22 -g https://www.youtube.com/watch?v=qxlVTsFbyKs`
url = 'https://r3---sn-tt1e7n7e.googlevideo.com/videoplayback?id=o-APMpsV_ubZwYnre71FtKIY7rTKTd1HmAGqjFS7D_W9vO&itag=22&source=youtube&requiressl=yes&mm=31%2C29&mn=sn-tt1e7n7e%2Csn-tt1eln7s&ms=au%2Crdu&mv=m&pl=25&ei=g-LdXNT1H-ODir4P0Jeb0Ag&initcwndbps=2695000&mime=video%2Fmp4&ratebypass=yes&dur=91.649&lmt=1556128078557211&mt=1558045252&fvip=3&c=WEB&txp=2216222&ip=184.75.215.122&ipbits=0&expire=1558066915&sparams=ip%2Cipbits%2Cexpire%2Cid%2Citag%2Csource%2Crequiressl%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Cei%2Cinitcwndbps%2Cmime%2Cratebypass%2Cdur%2Clmt&signature=481807C3CAD81BC6CFA6E4131D5E734BC2CB63FC.2EBF166C597725BC02E9EE28227B9A9C815E224C&key=yt8'
# 60 seconds
import urllib.request
urllib.request.urlretrieve(url,"file.mp4")
# 50 seconds
import urllib.request
data = urllib.request.urlopen(url).read()
open('out.mp4', 'wb').write(data)
# 50 seconds
import subprocess
subprocess.check_call(["curl", "-L", url, "--output", "out4.mp4"])

在浏览器上禁用您的缓存，例如Chrome，您可以尝试禁用网站开发的Chrome Cache