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22nd January 2020, 18:27 | #2021 | Link | |
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22nd January 2020, 18:48 | #2022 | Link |
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https://moisescardona.me/rav1e-gui/
https://ffmpeg.zeranoe.com/builds/ Download rav1e gui. Download the static ffmpeg with the date. (exe) Copy the ffmpeg in rav1e gui folder that you extracted (with 7-zip or winrar). Disable pipes (right at the centre that is a checkbox). If it causes problems. It still could have different aspect ratio and different framerate not PAL (.vob file) 23.9976 It supports anything with ffmpeg, and ffmpeg converts to yuv. Pipes are to not generate .yuv file. For a GUI there is also Hybrid GUI (with aomenc - svt appveyor you can download) and Svt GUI, the last by Moises (same developer as rav1e gui). |
22nd January 2020, 19:22 | #2023 | Link | |
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How do I check that I get the latest AV1 encoder? Thank you in advance. |
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22nd January 2020, 19:32 | #2024 | Link |
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https://www.reddit.com/r/AV1/comment...est_av1_build/
I asked the question on Reddit some months ago. Here it is. |
22nd January 2020, 19:38 | #2025 | Link | |
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I'm starting the encoding process now. Thanks again. |
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22nd January 2020, 21:39 | #2026 | Link |
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You're welcome.
Rav1e has still 80% 120% 340% difference in quality/bitrate in videos on arewecompressed.yet AWCY. A site that codec developers use to test. SVT is too far from libaom as encoder if you see Mrsmilingwolf's user test on Reddit or on Doom9 like comparable to VP9 a bit not better. I don't know if he tests with anime or like action. Also FFmpeg has included a build of encoders (Libaom) which you check the readme file in the archive (.zip) or in lower section "Other Downloads" by clicking Readme to see which version it is. Handbrake GUI doesn't support the encoding because it's too slow and AV1 support it's only in beta. But it supports dav1d (Videolan) decoding, only 8bit is completed on general SIMD, 10 bit lacks support, so it runs without SIMD instructions. If you use a GUI like Hybrid other than ffmpeg, to encode with libaom you will need aomenc.exe. Artificial noise isn't possible with a GUI, you need ffmpeg and use libaom. Last edited by paul97; 22nd January 2020 at 21:53. |
23rd January 2020, 00:47 | #2027 | Link | ||
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It seems that there should be scenarios and highly multicore systems where SVT-AV1 would beat libaom in quality @ bitrate @ perf, just because it would have so many more MIPS/pixel available. |
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31st January 2020, 04:15 | #2028 | Link | |
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I compile a docker image with the latest libaom source + ffmpeg every weekend |
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5th February 2020, 21:10 | #2029 | Link |
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Optimisation for dav1d happening for 16 bpc on ARM64 apparently - whether that means everything between 16 and 8 I don't know.
Apparently Netflix are pushing out AV1 now too (possibly even sponsoring the new optimisation efforts?). Are we finally at the point where AV1 deserves its own sub forum? |
6th February 2020, 05:02 | #2032 | Link |
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Is YouTube starting to roll out AV1 for less popular videos and/or YouTubers?
I noticed AV1 encodes on the following video with less than 100k views that's only 5 days old: https://www.youtube.com/watch?v=g6NvMpzRoyU Also I always found it a bit odd that YouTube used MP4 rather than WebM for AV1. I realize MKV and therefore WebM support was not available when YouTube started introducing AV1, but considering they themselves created WebM (albeit not from scratch as it's a derivative of MKV), and they previously chose to use WebM rather than MP4 for VP9 tells me that they would prefer WebM when given the choice... (personally I greatly prefer the WebM and by extension MKV container vs MP4 when it comes to streaming assuming the codec used is the same, but I realize that for 99.9999% of people WebM/MKV vs MP4 container would make absolutely no impact on how they consume video)
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6th February 2020, 10:06 | #2034 | Link | |
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I notice that opening an incomplete DASH MP4 stream in MPC-HC or mpv that is downloading via youtube-dl will have the video stream eventually stop at whatever point the video had downloaded when you launched the file even if the download is finished (thereby requiring you to relaunch the video). With YouTube's DASH WebM encodes though, if you open an incomplete but still downloading DASH WebM video in MPC-HC or mpv, it's able to completely play through the video without issue as long as it's downloading quicker than you're viewing it. It is worth noting however that sometimes I notice that a rare DASH WebM video will instead be downloaded into individual chunks via youtube-dl which are then reassembled into a single file as it downloads. These are notable in that trying to watch the reassembled albeit still downloading video gives you the exact same behavior as the DASH MP4 videos.
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6th February 2020, 10:06 | #2035 | Link | ||
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6th February 2020, 10:09 | #2036 | Link |
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1080p AV01 (fmt 399) is listed in youtube-dl though and does indeed successfully download.
I would imagine they're probably only using it for SD, likely with a focus on markets where bandwidth speed and the like is quite low (think maybe less than 1mbps?)
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6th February 2020, 10:15 | #2038 | Link | |
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They did something similar back when they were rolling out VP9 whereby it would fallback to AVC if your user agent listed Windows XP (one of the few cases of user agent sniffing that I feel is not actually terrible) Also here's a youtube-dl screenshot for reference showing the 1080p AV1:
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6th February 2020, 11:17 | #2040 | Link |
Artem S. Tashkinov
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Last edited by birdie; 6th February 2020 at 11:19. |
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