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13th November 2017, 18:47 | #341 | Link |
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I just did some test encodes with the recent git version. All the now default enabled features (experiments) have massively increased the VMAF score compared to a few months ago. Just judging by VMAF, as flawed as it may be, AV1 is now way above x265.
Also tried some options to speed up encodes. Seems like --cpu-used has very limited effect. Encoder always ran on just one cpu until I supplied --tile-columns=X but that is bugged, only the leftmost columns comes out correctly, the others are basically broken. And even then it doesn't saturate any cpu completely. |
13th November 2017, 21:57 | #342 | Link | |
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Quote:
Hopefully eventually it'll get decent multi-processing like x264. |
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13th November 2017, 22:01 | #343 | Link |
Derek Prestegard IRL
Join Date: Nov 2003
Location: Los Angeles
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I wouldn't hold your breath. The main use case for AV1 and VP9 is cloud scale distributed encoding which can very happily be single threaded because inputs are broken into small chunks and encoded in parallel across many many many small cloud VMs. Given the availability of a system to do this, it's a much better solution than trying to do per-encode-instance multithreading because it's way simpler and has zero downsides.
Multi-threading is more important for live, and for desktop encoding. |
20th November 2017, 18:11 | #346 | Link | |
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Quote:
and on a related note streaming media C104 video with alot of AV1/HEVC talk http://streamingmedia.brightcovegall...rt=true&page=1
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Woah! Ninja?! http://nwgat.ninja/ (AV1 Overview) "Not available in your region" has now been redefined as "Go Pirate, you filthy scum" Nwgat |
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21st November 2017, 19:50 | #348 | Link | |
German doom9/Gleitz SuMo
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I love sloppily dropped URLs I have to visit to know what to expect...
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Last edited by LigH; 21st November 2017 at 19:54. |
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21st November 2017, 19:57 | #349 | Link | |
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Quote:
Can I download it somehow? It might be that something glitchy with networking. Last edited by mzso; 21st November 2017 at 20:05. |
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21st November 2017, 20:00 | #350 | Link |
German doom9/Gleitz SuMo
Join Date: Oct 2001
Location: Germany, rural Altmark
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Possibly if you somehow manage to record the MPEG DASH video stream locally and play it afterwards; but that's the opposite of the intended use: Video streaming. Who knows whether the streaming or the player is the bottleneck here (but it is hosted on Akamai network servers...).
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21st November 2017, 20:21 | #351 | Link | |
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22nd November 2017, 17:07 | #353 | Link | |
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Quote:
i suspect its very single core depenant on decoding just like the current encoder wait for the bitstream to freeze to check it out, thats when all the encoders and decoders align to decode the same file, atm the decoder cant decode another version of the encoder
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Woah! Ninja?! http://nwgat.ninja/ (AV1 Overview) "Not available in your region" has now been redefined as "Go Pirate, you filthy scum" Nwgat Last edited by wiak; 22nd November 2017 at 17:19. |
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22nd November 2017, 17:41 | #354 | Link | |
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22nd November 2017, 18:39 | #355 | Link |
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hello there, your zenpai here! i got a 1700X
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Woah! Ninja?! http://nwgat.ninja/ (AV1 Overview) "Not available in your region" has now been redefined as "Go Pirate, you filthy scum" Nwgat Last edited by wiak; 22nd November 2017 at 18:43. |
27th November 2017, 17:36 | #357 | Link |
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Join Date: Jun 2016
Posts: 55
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Streaming Tech Sweden AV1/HEVC comparison by Jan Ozer: https://www.youtube.com/watch?v=KzqOIddTNPQ
Hopefully the AV1 update by Jai Krishna will be uploaded soon. For those who are impatient, the slides are here: https://speakerdeck.com/stswe/av1-up...an-from-google |
27th November 2017, 22:37 | #358 | Link | |
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Quote:
They have delayed the bitstream freeze to January now instead of end of year, not a big deal. Last edited by hajj_3; 28th November 2017 at 02:09. |
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29th November 2017, 21:06 | #359 | Link |
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Join Date: Sep 2009
Location: Berlin
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https://demo.bitmovin.com/public/firefox/av1/
how can i grab this demo stream? I wanna analyse and test this stream outside of firefox. |
29th November 2017, 21:12 | #360 | Link |
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Join Date: Dec 2002
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Code:
youtube-dl https://bitmovin-demos.commondatastorage.googleapis.com/mozillaAV1_Oct2017/e87fb2378f01103d5d6e477a4ef6892dc714e614_v1/stream.mpd |
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