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26th September 2017, 19:41 | #301 | Link | |
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29th September 2017, 08:44 | #302 | Link |
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Evolution of the AV1 codec between October 2016 and July 2017
http://wyohknott.github.io/image-for...omparison.html I'll add another data point after bitstream freeze. |
30th September 2017, 14:56 | #307 | Link |
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Thanks Clare.
Unfortunately, i have to agree. AV1 still image encoding has improved in some regards (less ringing), but it smoothes a bit too much for my liking. In many cases the old AV1 looks better than the new in my opinion. |
5th October 2017, 00:27 | #308 | Link |
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I've watched some images from here http://wyohknott.github.io/image-formats-comparison/
And yes, AV1 and HEVC don't retain fine details as much as Daala but they have less blocking though. |
9th October 2017, 19:11 | #310 | Link | |
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subset1 | subset2 Encoded with --distance 3 (maximum compression). Images are still larger than the ones used in your current comparison, especially the more compressible ones.
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20th October 2017, 20:34 | #311 | Link |
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Demuxed 2017 videos are on their Youtube channel (https://www.youtube.com/channel/UCIc...9UgUSTvWVNCmpA). Apparently the AV1 still image format will be called AVIF.
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22nd October 2017, 17:12 | #313 | Link | |
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DMOS is the gold standard of course, but is expensive and non-automatable. I would like to see at least VMAF scores, as VMAF looks to be the substantially best objective video metric available, at least for SDR <=1080p and >300 Kbps. I am baffled by the use of such an old x265 build. Even in placebo it'll run a ton faster than the current AV1 reference implementation. So it'd be trivial to rerun the test at the same time the final tests for AV1 are done for a presentation like this. Are the different command lines used for the different codecs listed somewhere? |
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24th October 2017, 14:15 | #314 | Link |
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In case anyone else was confused like I was, the still image format based on AV1 called AVIF is mentioned (briefly) in a video mostly on other topics, given by Netflix at the Demuxed conference, not in either of the two videos that mention AV1 in their titles:
https://www.youtube.com/watch?v=PSdhW-R9u6s |
25th October 2017, 09:26 | #316 | Link | |
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25th October 2017, 13:20 | #317 | Link |
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It's at 1:30 through to about 4 minues though it pretty much only says "We expect to have a new image format based on [AV1] called AVIF" and about 3 minutes makes clear this is just a I-Frame of AV1 and aimed towards distribution rather than storage.
Last edited by dapperdan; 25th October 2017 at 13:23. |
25th October 2017, 17:44 | #318 | Link |
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AV1 status update talk from Gstreamer conference, very similar content to the Demuxed talk.
https://gstconf.ubicast.tv/videos/av...arly-complete/ |
25th October 2017, 17:47 | #319 | Link |
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A PhD-level internship for working on AV1 at Mozilla is open for applications:
https://careers.mozilla.org/position/gh/881961 |
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