[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: [Debconf-video] MiniDebConf Prishtina video



On Wed, Oct 11, 2017 at 07:08:45PM +0200, Daniel Pocock wrote:
> On 10/10/17 19:20, Wouter Verhelst wrote:
> > On Tue, Oct 10, 2017 at 10:54:56AM +0200, Daniel Pocock wrote:
> >> On 10/10/17 08:18, Wouter Verhelst wrote:
> >>> On Mon, Oct 09, 2017 at 03:27:14PM +0200, Daniel Pocock wrote:
> >>>> On 08/10/17 22:31, Wouter Verhelst wrote:
> >>>>>> One other issue: I notice the DSLR doesn't always keep the speaker in
> >>>>>> focus when autofocus is enabled.  It is a Nikon D800.  Can anybody with
> >>>>>> more experience comment on this?  Is there anything I can do to get the
> >>>>>> autofocus working well?
> >>>>> "flawless autofocus" is a utopia. I have a friend who is a professional
> >>>>> cameraman; he tells me pros never use it, they use manual focus instead.
> >>>>> It's the only way to reliably keep things properly in focus.
> >>>> The challenge with manual focus on a DSLR is that the screen on the back
> >>>> of the camera doesn't give a sharp image even when it is in focus
> >>> Another option could be to use the autofocus to focus on the speaker,
> >>> and then switch it off. It will then remain in focus on the spot where
> >>> it was.
> >> This can be a good option for situations where the speaker can't move a
> >> lot (e.g. they are behind a desk or podium)
> > Right.
> >
> >>> Alternatively, use a smaller crop on the camera (the smaller the sensor,
> >>> the larger the field of view), and use aperture priority mode to get an
> >>> aperture opening that is as small as possible. If you do it right, you
> >>> can get the entire stage set in focus, and you shouldn't need to change
> >>> the focus at all (but you'll need more light to be able to do so).
> >>>
> >>> At any rate though, again, a DSLR isn't the best option to do video
> >>> with. Yes, you can do it, but it's not necessarily the best choice.
> >> Agreed, but DSLR with video capability is very common these days and in
> >> those cases where a full video setup is not available it could be useful
> >> to give people a cheat-sheet for what we've discussed
> > Our long-term goal is to be able to ship a box with enough gear to do a
> > recording with our Debconf cameras to miniconfs. Once we have that, this
> > wouldn't be necessary anymore.
> >
> > (obviously that doesn't help for events that aren't Debian events, or
> > where nobody we know will be present, but still)
> >
> >> The upload from Prishtina has finished, it is under
> >>
> >> vittoria.debian.org:/home/pocock/2017-10-07-prishtina
> >>
> >> I've started to receive slides by email, I'll rsync them to vittoria
> >> when I have the lot.
> > For clarity, the meetings-archive currently doesn't hold any slides.
> > Traditionally, we've been adding those to annex.debconf.org.
> 
> In this case, I was anticipating that the slides might be edited into
> the final videos and so copies of them could be kept with the raw data
> (audio and video files)

There's no support for that in SReview, and it's not planned either. I
recommend you place the slides in an accessible location, and point to
them from somewhere, instead.

> >> Can you suggest how volunteers can retrieve and play with these files
> >> now?  I'd like to notify them on the FLOSSK list (Kosovo) and Open Labs
> >> forum (Albania)
> > I'm working on the necessary changes for sreview, and then people will
> > be able to manage them through there. For that though, I'd need to know
> > what the start time (preferably at as small a resolution as you can
> > manage) of the different WAV files is. Currently that's kindof unclear.
> >
> > If you want to absolutely not do that, then hrm, we'll have to think of
> > something else.
> >
> 
> I think the WAV filenames are UNIX timestamps

Ah, yes, now that you mention it :-)

(they're a bit big, but I presume that's because they have milliseconds
in them -- awesome)

> stat.txt shows the end time for each recording, I think those are CET
> (UTC+2)

Presumably that is also the timezone of the schedule?

> The video files may also contain some meta-data with timestamps.  We
> didn't quite run to schedule though.

That's fine, it just means that your reviewers may in the worst case
have to get the videos through the review system more than once.

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

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

Reply to: