Originally posted by sandy8925
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dav1d 0.5.1 Boosts AV1 Video Decode For Older CPUs by 40~50%
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Guest repliedOriginally posted by DoMiNeLa10 View Post
I'd love to see a device that still works after that long, as most of the time these things disintegrate about a year into use.
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Guest repliedOriginally posted by microcode View Post
Note how we routinely decode VP9 in software on phones.
Of course, iDevices are a different matter - Apple has patents in H.264 and H.265, so obviously they don't support VP8 or VP9.
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Guest repliedOriginally posted by DoMiNeLa10 View Post
No sane person would do software encoding or decoding of video on typical ARM hardware. These chips have hardware support for video for a good reason. Optimizing for ARM is purely academic.
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Originally posted by DoMiNeLa10 View Post
As I've mentioned before, the standard approach seems to be simply serving H264 in that case as a fallback. Most ARM hardware is disposable anyway, and if you get 2 years of use out of it, you're very lucky. Smartphones are meant to be thrown out and replaced with something newer. If that bothers you, it's between manufacturers and you.
The Codec Generation VP9 and HEVC was no real solution for the Problem. HEVC is ugly with the Patent situation and VP9 was not Supported by Apple(only with third Party player). So it was needed to have h264 as fallback
Maybe we have with AV1 or VVC a generation of Codecs that will be better supported so the h264 fallback is only needed in edge cases(i guess with up to 50% savings in data usage it is more worth than the last generation)
Maybe your mobile devices have no vp9 HW decoder and they expect that Battery life is more valuable to you than mobile data.
The manufacturers want you to buy every 1-2 years a new device(or you get a new one on your cell phone contract.)
But i would say we are over the Point where the innovation is so rapid that is worth for the customer to buy a new one in that Cycle. And looking at the numbers of Phones with old (unpatched) Android versions still in use, would i say that not everyone does what the manufacturers want
Looking at Apple. Iphone5s did still got the update to iOS 12 so end2013-End2019 support(not sure if they will patch Security problems after that)
I personally don't buy Devices that are expected to be thrown away that fast
EDIT
I'd love to see a device that still works after that long, as most of the time these things disintegrate about a year into use.Last edited by Toggleton; 29 October 2019, 07:02 AM.
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Guest repliedOriginally posted by Serafean View PostWell, anyone who keeps a smartphone more than 3 years might disagree with you.
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Guest repliedOriginally posted by Toggleton View Post
It is better if you can view a AV1 file on older Hardware, than to have no way to open it. Hardware decoder need Kernel support so you will end up with a lot user who will rely on Software decoding until it is in the Mainline Kernel.
No sane person would throw out still good Hardware to get a new one with Hardware decoder for the new Codec. So you will have a lot of User that will rely on SW decoder And we have no AV1 Hardware decoder ready to buy yet(they are planed 2020)
Hardware decoder are mostly to improve Battery life. If your Device is always plugged in, it does not matter that much (As long as the CPU is fast enough for SW encoding)
Well i use my Odroid N2(arm64) as my main device at the moment. I can decode AV1 without problems 1080p30fps (could be more now i have not checked for the improvements of dav1d 0.5)
And for Encoding https://github.com/xiph/rav1e/issues/1754 rav1e does merge the Arm64 assembly from dav1d. It will take a lot of time to encode with it but why not use a Raspberry Pi like device that you have lying around in your closet. (maybe arm32 too)
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Guest repliedOriginally posted by microcode View Post
Note how we routinely decode VP9 in software on phones.
I don't recall seeing hardware VP9 decoding on mobile devices.
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