no more hslv format ?

[Owen Smith]

I'm replying on an iPad, which makes large scale editing of email replies a huge amount of work. So I top post, because it takes only a tenth of the time. If Apple made it only cost me double the amount of time to reply properly I'd do it.

I've been mystified for a while why people talked about "dropping every other frame" as if it were trivial to do, and an email earlier in this chain looked like someone was trying to do that again. I was explaining why that simply is not possible in the general case.

-- 
Owen Smith <owen.smith at cantab.net>
Cambridge, UK

> On 2 May 2018, at 22:33, Ralph Corderoy <ralph at inputplus.co.uk> wrote:
> 
> Hi Owen,
> 
>> What do you mean this isn't a lossy transcoding?
> 
> Is that aimed at me?
> 
> Perhaps if you didn't top post, and instead wrote that under a quote of
> mine I'd know to which bit of the two ffmpeg invocations you were
> referring!  :-)
>> How can ffmpeg go from 50fps to 25fps without losing anything?
> 
> I don't think it can, and didn't suggest it could.  It is lossy.  I said
> the first, default, one wasn't, and that therefore it wasn't worth
> combining this extra, 50->25, one with it, as you would want to if both
> were lossy.
> 
> -- 
> Cheers, Ralph.
> https://plus.google.com/+RalphCorderoy
> 
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