No, because HEVC encoder implementations are extraordinarily slow, so it
defeats the purpose of the trick I just mentioned. The reason x264 is
great is you get a very high quality copy and the performance of the
encoder is exceptionally good on regular old x86 hardware. You could use
HEVC/AV1;
We used to use lossless compression during the compositing and mastering
process while preparing videos for use in video games, back when I worked
in the game business — but the lossy codecs were much worse back then, so
perhaps it’s no longer as useful. I agree that generally speaking, the only
You suggest H.264 here. Any thoughts on whether or not you can get better
results with HEVC? I would expect people to wonder if the newer codec can
get better results, so I figured I should ask.
On June 13, 2019 at 6:36:38 PM, Jeremy Noring (jeremy.nor...@gmail.com)
wrote:
Regarding "near
I think you’re correct regarding the “niche” comment. As a video engineer
I have yet to see a situation where I lossless compression made sense, but
video processing is a big field and I’m sure there are places it’s
appropriate.
On Fri, Jun 14, 2019 at 6:49 PM Eric Shepherd (Sheppy) <
That’s really good advice and I’ll tweak my content around that. Thanks to
both of you for your input. I still personally feel like there’s room for
using device-local uncompressed media in a media editing context, but I
suppose that’s a pretty incredibly niche market. :)
On June 13, 2019 at
Adam Roach wrote:
On 6/13/19 5:28 PM, Eric Shepherd (Sheppy) wrote: >> to be prepared. My experiements suggest that even where there are
codecs>> that have a lossless or near-lossless feature in the spec, they
tend >> not to>> be implemented, especially in browsers. So I guess
that’ll be a big
Regarding "near lossless," the best option I've seen is using x264 with
"-crf 18 -preset ultrafast", which is basically a very high quality copy of
the video with a high bitrate due to the "ultrafast" preset. There's
minimal loss of fidelity, but it's also still relatively quick to do the
encode
Hit send one sentence too soon. I also meant to point out that in web apps,
the user could be working with local media files rather than something over
the web — especially if they’re doing A/V production work.
On June 13, 2019 at 6:23:00 PM, Martin Thomson (m...@mozilla.com) wrote:
Lossless
Yeah, I know that lossless is huge, but was curious if there were any
options since it will be a question that gets asked, and therefore I want
to be prepared. My experiements suggest that even where there are codecs
that have a lossless or near-lossless feature in the spec, they tend not to
be
Lossless video coding isn't really a thing on the internet. There are
lossless modes in some encoders (x264 has one that I'm aware of), but they
tend to inflate inputs rather than compress them. There are systems used
in video production that maintain all the source bits, but they use insane
I’m working on my video codec documentation and have come across the point
where I need to offer suggestions to developers who need to work with
lossless video in a web app, for things like archival and video production
work?
As far as I can see, there aren’t at this time any dedicated lossless
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