Jump to content


Photo

YouTube accepts fast flv uploads!


  • Please log in to reply
5 replies to this topic

#1 Karel Bata

Karel Bata
  • Basic Members
  • PipPipPipPip
  • 487 posts
  • Director
  • London - a rather posh bit

Posted 17 January 2009 - 06:33 AM

I read this elsewhere and thought I'd share it:
"First it's a myth that Youtube converts "everything" you upload.
If you work within certain constraints Youtube will save itself some unnecessary effort and fastforward your video straight past the encode que and just use exactly what you upload.
So no waiting for your video to come online - it appears within a few seconds.
To pass this test your uploaded video should first already be a suitably encoded Flash video file - FLV.
Next - Youtube works on an "average bit rate". So other than getting your video in to Flash format (if not already) that's all it's really bothered about. It wants a smooth playback - avoiding undue buffering.
So - if your uploaded video file is FLV and has an average bit rate below the Youtube target (think it was 300kbs) - you get fasttracked - no encoding!
This opens up an interesting loop hole that can be exploited where you can encode your own FLV at a much higher bit rate than Youtube would normally use - and trick Youtube into allowing that video untouched straight online.
As a test using this technique I encoded a video that has such a high bit rate (700kbs) it can't actually play without loads of buffering on most fast connections (exactly what Youtube is seeking to avoid). No purpose in this other than to prove the video had its bit-rate intact and had by-passed the re-encode que.
You may already see where this is going??
If your video is quite small less than 10-minutes, you can create a false "average" bit rate by padding the end of your video with "black". These black minutes will have a low data rate and thus push down the overall average for your video.
Then encode your own Flash file at a higher bit-rate than YouTube default and then upload your video.
Basically going in under the Youtube radar!"
Most excellent!
  • 0

#2 DGusset

DGusset

    New

  • Basic Members
  • Pip
  • 9 posts
  • Cinematographer
  • Canada

Posted 17 January 2009 - 10:18 AM

Thank you for that Karel,
That's interesting - and useful .... :)
and I will look more closely at your comparisons...
  • 0

#3 Laurent Andrieux

Laurent Andrieux
  • Sustaining Members
  • 1527 posts
  • Cinematographer
  • France

Posted 17 January 2009 - 09:51 PM

Interesting. Can you give a reference or source ?
  • 0

#4 Karel Bata

Karel Bata
  • Basic Members
  • PipPipPipPip
  • 487 posts
  • Director
  • London - a rather posh bit

Posted 18 January 2009 - 06:36 AM

A post from an editor on another forum. Needs verification of course, but he's pretty reliable. It might be a loophole YouTube will close if it gets used too often.
  • 0

#5 Karel Bata

Karel Bata
  • Basic Members
  • PipPipPipPip
  • 487 posts
  • Director
  • London - a rather posh bit

Posted 23 January 2009 - 08:37 AM

And for those of you struggling to get your YouTube HD and HQ videos embedded on your web pages (currently YouTube only supplies the LQ coding which you then have to tweak) here's a page that does all the hard work for you, whilst also allowing you to test the link:

YouTube HD & HQ Embed Code Generator

Posted Image

Edited by Karel Bata, 23 January 2009 - 08:41 AM.

  • 0

#6 Karel Bata

Karel Bata
  • Basic Members
  • PipPipPipPip
  • 487 posts
  • Director
  • London - a rather posh bit

Posted 23 January 2009 - 01:17 PM

Well, here's a new discovery!

If you put up an HD video then an HQ is also available. Here's an HD video to try it out for yourself if you don't have one handy:
The one at bottom of my coding page appears to be HQ.

What that means is that you can put a HD video up on YT and provide the end user with a choice depends on their connection.

Or did everyone else already know that..? :(

;)
  • 0


Wooden Camera

rebotnix Technologies

Willys Widgets

FJS International, LLC

Aerial Filmworks

Broadcast Solutions Inc

Technodolly

Tai Audio

CineLab

Visual Products

Paralinx LLC

The Slider

Gamma Ray Digital Inc

Glidecam

Abel Cine

Media Blackout - Custom Cables and AKS

Ritter Battery

Rig Wheels Passport

CineTape

Opal

Metropolis Post

The Slider

Abel Cine

Technodolly

Gamma Ray Digital Inc

CineLab

Paralinx LLC

Willys Widgets

Opal

Ritter Battery

Media Blackout - Custom Cables and AKS

Wooden Camera

Tai Audio

Aerial Filmworks

Broadcast Solutions Inc

Rig Wheels Passport

Visual Products

Metropolis Post

FJS International, LLC

CineTape

Glidecam

rebotnix Technologies