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dansup

I'm working on the @loops Camera

The challenge is to optimize the video as much as possible (on device) before upload to reduce load on the backend.

A 15s video (with audio) is just under 800kb at 480p30 using h265, not bad 😎

#loops

Screenshot of a loops video that is 15 seconds long and only 781kb big in terms of file size
20 March at 6:23 | Open on mastodon.social
13 comments
dansup

@loops I know 480p is low by todays standard, but it’s surprising okay on mobile screens and will reduce the storage usage which is going to be increasingly important for Loop instance admins.

Higher resolutions are on the roadmap!

20 March at 6:26 | Open on mastodon.social
PMFL :coffefied:

@dansup @loops so it's going to be released at that cap in the begining? Ok gess i'm going to convert to lower resolution, some of my cat videos. πŸ˜„

20 March at 6:37 | Open on masto.pt
dansup

@PMFL @loops I'm not sure yet, we'll have to wait and see after the beta is released and I have some real world data to analyse.

I'd like to give Loops admins the ability to set their own max resolution limit ideally.

20 March at 6:43 | Open on mastodon.social
mcc

@dansup @loops imagining applying a CRT filter in webgl or something to make the resolution look normal

20 March at 6:38 | Open on mastodon.social
dansup

@mcc @loops Lol, that would be fun, its cray what you can do with JS these days.

I have done some preliminary work on AR filters in the app, though they won't be ready for a while.

20 March at 6:41 | Open on mastodon.social
Π“Ρ€ΠΈΠ³ΠΎΡ€ΠΈΠΉ Клюшников

This generation of codecs (H265 and VP9) is optimized for high resolutions (e.g. they use larger macroblocks for areas of uniform-ish color), so do try higher resolutions, maybe even at the same bitrate as this.

20 March at 6:35
dansup

@grishka Oh good idea, thanks for the tip!

20 March at 6:38 | Open on mastodon.social
jonny (good kind)

@dansup
@loops
If youre only ever dealing with short videos, I bet you could squeeze some more juice out optimizing over the lookahead, GOP, and scenecut. Something tells me those are optimized for videos >15s

20 March at 7:12 | Open on neuromatch.social
πŸ‡©πŸ‡ͺ π•³π–†π–‘π–‘π–Šπ•¬π–“π–‰π–Šπ–—π–™
dansup

@HalleAndert @loops I'm still evaluating our options! AV1 is a contender, and being that we only have to support our own client atm, we can use pretty much anything we are willing to support playback wise!

20 March at 9:47 | Open on mastodon.social
Henri

@dansup @loops What aspect ratios will you have? This one seems like 3:4 vertical?

20 March at 9:46 | Open on mdon.ee
dansup

@slyecho @loops That is just a photo, our aspect ratio will be 9:16 as is the industry standard

20 March at 9:48 | Open on mastodon.social
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