download too slow

[tomhunts]

When I use the v2 version of the code to download the video, I found that the speed is very slow just at 60kb/s.
And when I watch youtube videos normally, 1080p can play very smoothly
The same video I use python code to download is still very fast at 2MB/s.

It means that there is no problem with my network,
Is there a corresponding solution to this problem? thanks

[and1truong]

Found this fast: https://github.com/yt-dlp/yt-dlp

I have same issue:

$ youtubedr download -q 720p rFejpH_tAHM -v
2022/02/04 18:20:38 GET https://youtube.com/embed/rFejpH_tAHM?hl=en
2022/02/04 18:20:39 200 OK
2022/02/04 18:20:39 GET https://youtube.com/s/player/0cd11746/player_ias.vflset/en_US/base.js
2022/02/04 18:20:39 200 OK
2022/02/04 18:20:39 POST https://www.youtube.com/youtubei/v1/player?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8
2022/02/04 18:20:39 200 OK
2022/02/04 18:20:39 download to directory .
2022/02/04 18:20:39 Video 'dotGo 2015 - Rob Pike - Simplicity is Complicated' - Quality '720p' - Codec 'video/mp4; codecs="avc1.64001F, mp4a.40.2"'
2022/02/04 18:20:39 Download to file=dotGo 2015 - Rob Pike - Simplicity is Complicated.mp4
2022/02/04 18:20:39 GET https://rr1---sn-uxanug5-cox6.googlevideo.com/videoplayback?expire=1643984439&ei=1-H8Yd2iGsfB9QOY1I2QDA&ip=2001%3A8003%3A6411%3Ac000%3Af55b%3A6a20%3Ad130%3Ae1c2&id=o-AMGkowNqkEMUizPk7Pcmj3CIMUQy-36hQqToDgex60qe&itag=22&source=youtube&requiressl=yes&mh=jf&mm=31%2C29&mn=sn-uxanug5-cox6%2Csn-ntqe6n76&ms=au%2Crdu&mv=m&mvi=1&pl=39&initcwndbps=1678750&vprv=1&mime=video%2Fmp4&ns=S9MKoY4KhHfSrqRz1hgvEY8G&ratebypass=yes&dur=1391.107&lmt=1609912099489007&mt=1643962388&fvip=1&fexp=24001373%2C24007246&c=WEB&txp=5432434&n=TlYVIEaiQ9DYekEdQ&sparams=expire%2Cei%2Cip%2Cid%2Citag%2Csource%2Crequiressl%2Cvprv%2Cmime%2Cns%2Cratebypass%2Cdur%2Clmt&sig=AOq0QJ8wRQIhAJmgTfjfjeGZr0KQoQAPy_23ngCwURk4-n5X3cqz575XAiB6x5PN5TNIe5VAJyrohEVuEevQCA3uVDKMYzi0pi8zOQ%3D%3D&lsparams=mh%2Cmm%2Cmn%2Cms%2Cmv%2Cmvi%2Cpl%2Cinitcwndbps&lsig=AG3C_xAwRAIgHjplH402sGZs6PdDf4O8U-m_4Q90Ysp8njRgDnrYB7QCIES_mzAPOFEIbMVAgfcY1xFFOw2y8S3LKjQ1jUl9Dh9L
2022/02/04 18:20:39 200 OK
0.00 b / 0.00 b 0 % [--------------------------------------------------------------] 0s ] 0.00 b/s

Paste "GET" url to browser, it works perfectly.

[tienlx97]

• They use io.Reader to get youtube data then use io.Copy to copy stream to file.
  https://github.com/kkdai/youtube/blob/master/downloader/downloader.go#L180
• It is better if they use os.Read and os.Write
  https://opensource.com/article/18/6/copying-files-go

[vmintam]

very slow. its the same with me. Only about 50kb.