Introduction

VideoCache Hacks

You are hereForums / Bugs / Video cache doesn't care about video quality

Finally, the wait is over!!! Videocache 2.0.0 is here :-) Check changelog for changes and new features in this version. Contact Us for your free upgrade!!

Video cache doesn't care about video quality

Post Reply
7 replies [Last post]
21 February, 2009 - 21:43
imriz
Offline
Joined: Dec 14 2008
Video cache doesn't care about video quality

Hi,

Some videos in youtube has two versions - low quality and high quality. videocache will cache the first version requested.

I suggest breaking the youtube cache dir into more subdirs per quality.

Top
Tags:
22 February, 2009 - 06:13
#1
imriz
Offline
Joined: Dec 14 2008

Oh, and another question - As far as I understand the code, it doesn't remove a 'begin' argument from the URL, if one is present. This could lead to the caching of incomplete files.
Am I right?

Top
22 February, 2009 - 09:25
#2
pyromania
Offline
Joined: Feb 15 2009

I've noticed this too with RedTube videos. A request will come in like,

http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000015/J1DDZG...

Videocache will download from that URL and the cached video was missing the first 2 minutes of the video. If you removed the start= or use start=0 you can download the complete video.

Top
22 February, 2009 - 13:55
#3
admin's picture
admin
Offline
Joined: Nov 2 2008

Imriz, Pyromania,

Youtube videos are not yet supported in all the formats. I hope they'll be supported very soon.

On the other hand, the start or begin tags are hard to detect for me as I don't have huge access logs for those websites. I test it as a sole user and you know I can't generate much traffic as a sole user itself. If you guyz can provide me with access logs for these websites, it'd be wonderful.

Thank You!

Top
22 February, 2009 - 16:57
#4
imriz
Offline
Joined: Dec 14 2008

http://www.youtube.com/get_video?video_id=-krxqcfwqhU&begin=524346&t=vjV...

http://www.youtube.com/get_video?video_id=-krxqcfwqhU&t=vjVQa1PpcFN0IoeC...

try both URLS with wget or some other URL fetcher, and see the difference in sizes

Top
25 February, 2009 - 02:52
#5
pyromania
Offline
Joined: Feb 15 2009

RedTube and Tube8 seem to both use a start= URL parameter. Here are some logs for a singe video request for redtube and tube8

2009-02-22 15:32:24,094 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:32:24,101 10356 XXX.XXX.XXX.XXX I1DDLG10M.flv URL_HIT REDTUBE http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:32:24,892 10356 XXX.XXX.XXX.XXX I1DDLG10M.flv NEW_URL REDTUBE http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:34:20,068 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:37:18,480 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:39:10,650 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:39:18,119 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:39:38,293 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...
2009-02-22 15:39:40,108 10356 XXX.XXX.XXX.XXX - REQUEST - http://dl.redtube.com/_videos_t4vn23s9jc5498tgj49icfj4678/0000014/I1DDLG...

2009-02-23 23:03:41,399 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:03:41,416 10356 XXX.XXX.XXX.XXX 49a3127126b1e.flv URL_HIT TUBE8 http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:03:42,243 10356 XXX.XXX.XXX.XXX 49a3127126b1e.flv NEW_URL TUBE8 http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:19,476 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:26,749 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:33,074 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:34,799 10357 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:40,702 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:48,861 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:50,926 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:04:53,123 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:05:07,754 10357 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...
2009-02-23 23:05:10,667 10356 XXX.XXX.XXX.XXX - REQUEST - http://media01.tube8.com/flv/cd12f7e35664ae56455e4df9a8b357ad/49a37f8b/0...

Top
23 February, 2009 - 02:23
#6
admin's picture
admin
Offline
Joined: Nov 2 2008

Imriz,

Got it. We need to drop the begin argument from the query. I'll see to it.

Thank You!

Top
23 February, 2009 - 13:01
#7
imriz
Offline
Joined: Dec 14 2008

Don't forget the quality issue (the fmt argument in the query).

I would suggest either appending it to the file name (.), or breaking the cache directory into more sub dirs (/youtube//)

Top

Post new comment

The content of this field is kept private and will not be shown publicly. If you have a Gravatar account associated with the e-mail address you provide, it will be used to display your avatar.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <img> <code>
  • Lines and paragraphs break automatically.
  • HTML tags will be transformed to conform to HTML standards.

  • Search Engines will index and follow ONLY links to allowed domains.

More information about formatting options

CAPTCHA
Are you a human visitor ?
Image CAPTCHA
Enter the characters shown in the image.
‹ Previous topic: http://video.google.es/videoplay?docid=-933124738927337625 Next topic: RPC server freeze ›

My Book on Squid

Purchase/Renew

Go to Pricing page to purchase a new license or renew your existing license.

New forum topics

more

Recent comments

Who's online

There are currently 0 users and 211 guests online.