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AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

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Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#121
post #118
post #104

Earlier quoted context omitted.

If only people would actually bother to write the codecs in the MIME type in the first place ...

Easier said than done, when there's no commonly accepted standard to store a file's MIME type as metadata, and you don't want to load all of ffmpeg into every webserver or file browser just so it can expose the proper granular one.

I mean, there is the xattr `user.mime_type`.

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#122
post #70

Earlier quoted context omitted.

Seems like piracy is the way for you

Sadly many shows aren't released on BluRay anymore, so even piracy won't deliver better quality.

I believe many sites still prefer Amazon webrips because their content is encoded at a higher bitrate than Netflix.

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#123
post #50

Will streaming services ever stop over-compressing their content? I have a top-of-the-line 4K TV and gigabit internet, yet the compression artifacts make everything look like putty. Honestly, the best picture quality I’ve ever seen was over 20 years ago using simple digital rabbit ears. You especially notice the compression on gradients and in dark movie scenes. And yes — my TV is fully calibrated, and I’m paying for…

I don't quite follow why compression would cause this. Feels more like a side effect of adaptive HTTPS streaming protocol where it would automatically adjust based on your connection speed, and so aligns with any jitter on the wire. It could also be an issue with the software implementation because they need to constantly switch between streams based on bandwidth.

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#124
post #9

We must be reaching the limit at which video codecs can only achieve better quality by synthesizing details. That's already pretty prevalent in still images - phone cameras do it, and there are lots of AI resizing algorithms that do it. It doesn't look like AV2 does any of that yet though fortunately (except film grain synthesis but I think that's fine).

Arguably that's already happening with film grain — you have to extrapolate _what the original probably was_, encode it because it's smaller, then add the noise back to be more faithful to the original despite your image being better. I imagine e.g. a picture of an 8x8 circle actually takes more bits to encode than a mathematical description of the same circle

>I imagine e.g. a picture of an 8x8 circle actually takes more bits to encode than a mathematical description of the same circle

I wonder if there are codecs with provisions for storing common shapes. Text comes to mind - I imagine having a bank of 10 most popular fonts an encoding just the difference between source and text + distortion could save quite a lot of data on text heavy material. Add circles, lines, basic face shapes.

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#125
post #50

Will streaming services ever stop over-compressing their content? I have a top-of-the-line 4K TV and gigabit internet, yet the compression artifacts make everything look like putty. Honestly, the best picture quality I’ve ever seen was over 20 years ago using simple digital rabbit ears. You especially notice the compression on gradients and in dark movie scenes. And yes — my TV is fully calibrated, and I’m paying for…

[dead]

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#126
post #50

Will streaming services ever stop over-compressing their content? I have a top-of-the-line 4K TV and gigabit internet, yet the compression artifacts make everything look like putty. Honestly, the best picture quality I’ve ever seen was over 20 years ago using simple digital rabbit ears. You especially notice the compression on gradients and in dark movie scenes. And yes — my TV is fully calibrated, and I’m paying for…

I’m still so surprised Disney+ degrades their content/streaming service so much. Of all the main services I’ve tried (Netflix, Prime, Hulu, HBO) Disney+ has some of the worst over-compression, lip-sync, and remembering-which-episode-is-next issues for me. Takes away from the “magic”.

Netflix now this on their lowest paid tier as well. I had to upgrade to the 4K tier just to get somewhat-ok 1080p playback...

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#127
post #50

Will streaming services ever stop over-compressing their content? I have a top-of-the-line 4K TV and gigabit internet, yet the compression artifacts make everything look like putty. Honestly, the best picture quality I’ve ever seen was over 20 years ago using simple digital rabbit ears. You especially notice the compression on gradients and in dark movie scenes. And yes — my TV is fully calibrated, and I’m paying for…

Are you sure about the black-areas-blocking? I remember a long time ago, when I was younger and had time for this kind of tomfoolery, I noticed this exact issue in my BlueRay backups. I figured I needed to up the bitrate, so I started testing, upping the bitrate over and over. Finally, I played the BlueRay and it was still there. This was an old-school, dual-layer, 100GB disc of one of the Harry Potter movies. Still saw the blocking in very dark gradients.

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#128
post #110
post #50

Will streaming services ever stop over-compressing their content? I have a top-of-the-line 4K TV and gigabit internet, yet the compression artifacts make everything look like putty. Honestly, the best picture quality I’ve ever seen was over 20 years ago using simple digital rabbit ears. You especially notice the compression on gradients and in dark movie scenes. And yes — my TV is fully calibrated, and I’m paying for…

>Will streaming services ever stop over-compressing their content? Before COVID Netflix were at least using 8Mbps for 1080P content. With x264 / beamr it is pretty good, and even better on HEVC. Then COVID hit, every streaming service not just Netflix have excuses to lower their quality due to increased demand with limited bandwidth. Everything went down hill since then. Customer got used to lower quality I dont beli…

Netflix also has a huge incentive to not use h265 and h264, licensing cost.

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#129
post #70

Earlier quoted context omitted.

Seems like piracy is the way for you

Sadly many shows aren't released on BluRay anymore, so even piracy won't deliver better quality.

darn pirates should run the content through a super resolution model!

Re: AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025

#130
post #50

Will streaming services ever stop over-compressing their content? I have a top-of-the-line 4K TV and gigabit internet, yet the compression artifacts make everything look like putty. Honestly, the best picture quality I’ve ever seen was over 20 years ago using simple digital rabbit ears. You especially notice the compression on gradients and in dark movie scenes. And yes — my TV is fully calibrated, and I’m paying for…

for the super affluent, https://www.kaleidescape.com/compare/

For the less affluent you can setup a Jellyfin media server and rip your own blu-rays with makemkv.
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