Am Thu, 17 Jul 2014 11:54:20 -0700 schrieb Andrei Alexandrescu <seewebsiteforem...@erdani.org>:
> I'm not an expert in videos but as I mentioned I've studied a few > options last year before deciding to use archive.org as our reference > upload site. > > I got curious just now, so I just uploaded two screenshots: > > http://i.imgur.com/x1bsTNf.jpg with archive.org > http://i.imgur.com/CEFCgAi.jpg with youtube.com > > Indeed the archive.org resolutions looks visibly better; my > understanding is archive.org is streaming the very mp4 content I > uploaded to it. Could anyone give more detail on what processing > youtube does? > > > Thanks, > > Andrei I think youtube always recodes videos. Probably to a lower bitrate and and with faster, but lower quality encoding (single pass vs multipass, etc.). For youtube formats, see: http://en.wikipedia.org/wiki/YouTube#Quality_and_codecs