Re: [Debconf-video] Report from last week-end's single-user single-day DebConf Video sprint

[Wouter Verhelst <w@uter.be>]

On Tue, Jun 27, 2017 at 11:43:55AM +0000, Holger Levsen wrote:
> On Tue, Jun 27, 2017 at 01:26:37PM +0200, Wouter Verhelst wrote:
> > Right, but I doubt we'll ever want to do more than 1080p (if even that),
> 
> I used to say the same about DV ("thats all we need") but after having seen several
> cccongress videos in 1080p I must say, higher resolution *is* better. 
> 
> Both for videos with many small details as well as for "boring videos" where you
> only see the speaker…
> 
> So I can imagine doing DebConf videos in 4k by now :)

Oh, yeah, sure. I can *imagine*, that's not the problem. Perhaps I
should clarify:

- I doubt voctomix can deal with 4K on today's hardware;
- Most people will not want to download a one-hour 2160p stream (which will be
  around 35G if done right) if a 1080p one (about 5G) will suffice;
- While 4K screens do exist, I don't know how many DDs have such screens today
  (as opposed to FullHD ones);
- Even if the above point wasn't true, the bandwidth requirements for live
  streaming 2160p to a few hundred people will be insane;
- When I bought my 40" TV a few years back (which does both types of 4K), I
  calculated that at that size, 4K comes down to 4.something pixels per
  millimeter; that's over sixteen per square millimeter. As such, I say
  that unless you have a really really *really* big screen and some
  serious bandwidth, you will not see the difference between 1080p and
  4K.

I do agree that higher resolution is generally better, and we should
consider to switch to 1080p in a few years, when technology has improved
to a level where it makes technical sense for us to push that far.
However, 4K is so far down the line before it'll be useful for us that I
don't think we should care about that with the cameras that we're buying
today; by the time we do move to 4K, 10-15 years from now, these cameras
will be so old that they'll need to be replaced anyway.

At least that's how I see it.

-- 
Could you people please use IRC like normal people?!?

  -- Amaya Rodrigo Sastre, trying to quiet down the buzz in the DebConf 2008
     Hacklab