I recently got it into my head to compare the various popular video codecs in an effort to better understand how av1 works and looks compared to x264 and x265. I also had ideas of using a intel video card to compress a home video security setup, and what levels of compression I would need to get good results....
Frankly, for anything other than real-time encoding, I don’t actually consider encoding time to be a huge deal. None of my encodes were slower than 3fps on my 5800x3d, which is plenty for running on my media server as overnight job. For real-time encoding, I would just grab a Intel Arc card, and redo the whole thing since the bitrates will be different anyways.
Encoding speed heavily depends on your preset. Veryslow will give you better compression than medium or fast, but at a heavy expense of encoding speed. You’re not gonna re-encode a movie overnight on slow preset. GPU encoding will also give you worse result than CPU encode so that’s something one would have to take into consideration. It’s not a big deal when you’re streaming, but if it’s for video files, I’d much prefer using the CPU.
I consider the ‘good enough’ level to be, if I didn’t pixel peep, I couldn’t tell the difference. The visually lossless levels were the first crf levels where I couldn’t tell a quality difference even when pixel peeping with imgsli. I also included VAMF results, which say that the quality loss levels are all the same at a pixel level.
I was mostly talking about how you organised your table by using CRF values as the rows. It implies that one should compare the results in each row, however that wouldn’t be a comparison that makes much sense. E.g. looking at row “24” one might think that av1 is less effective than h264/5 due to greater file size, but the video quality is vastly different. A more “informative” way to present the data might have been to organise each row by their vmaf score.
Hopefully I don’t come across as too cross or argumentative, just want to give some feedback on how to present the data in clearer way for people who aren’t familiar with how encoding works.
EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something...
There was an old reddit thread were one woman argued that women arent attracted to “gym rats” and used Henry Cavill as an example of a man with a physique who doesn’t spend hours in the gym everyday.
People who doesn’t do resistance training have a negative amount of knowledge of what it takes to get in “shape”.
If a game is on GOG, I’d rather buy it there than on steam. Steam is great and they do a lot of great stuff, but you don’t own the game if you buy it through steam.
Researchers have shown that the performance of the public GPT models have decreased, likely due to OpenAI trying to optimise energy efficiency and adding filters to what they can say.
I don’t really care about why it, so I won’t speculate, but let’s not pretend the publicly available models aren’t purposefully getting restricted either.
I think the idea is to make it easier to detect trolling/spam from certain accounts. But honestly, there’s no reason upvotes and downvotes can’t just be public.
Sophie's choice 70s edition (lemmy.world)
Comparing compression in AV1, x264, and x265 (kbin.social)
I recently got it into my head to compare the various popular video codecs in an effort to better understand how av1 works and looks compared to x264 and x265. I also had ideas of using a intel video card to compress a home video security setup, and what levels of compression I would need to get good results....
What is Something Scientific that you just don't believe in at all?
EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something...
Playing an unsupported file (lemmy.ml)
Image Alt Text: “After downloading a 2.5GB movie...
Not inaccurate (startrek.website)
I will rue the day this inevitably happens. (lemmy.world)
Remember to have fun at work (lemmy.world)
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Docked US Navy Dirigible upended after a strong wind, 1926 (lemmy.world)
This is for something else. (i.imgur.com)
Programming: The Horror Game (programming.dev)
Survive the zombie apocalypse (lemmy.zip)
Learn something new every day (lemmy.world)
What is your favorite part of the day?
this AI thing (lemmy.world)
Lemmy instance admin snooping at votes (monero.town)
So I was going through /all and this admin is snooping at vote counts for posts in his instance and then posting it publicly....
R.I.P. (i.postimg.cc)