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27th August 2016, 11:09 | #81 | Link | |
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27th August 2016, 12:15 | #82 | Link |
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Make sure you are using FFVP9 decoder. Chrome uses the libvpx instead (bad, inefficient). I think Firefox adopted FFVP9, but I have no idea if it is used on the Apple OS X.
No idea if the Intel drivers that implement the partial acceleration even work/are available on the platform (or Linux). If they don't, you could try under Windows and see if the partial acceleration works under 4K - not sure there. |
27th August 2016, 12:37 | #83 | Link |
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I have tried https://media.xiph.org/video/derf/we...10bit_420.webm chrome was the fastest.
Intel was first to support VP9 decoding (at least hybrid). Anyway I don't see anyone doing better. "not buying Intel" doesn't solve anything. |
27th August 2016, 16:10 | #84 | Link |
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I think the AV1 codec is supposed to have hardware decoding available starting at the end of 2017 iirc. That will likely be from ARM and Qualcomm i suspect. Hardware decoding is way more important for those companies than it is for laptops and desktops. I suspect that by mid-2018 all intel and amd apus will have it and all amd and nvidia gpus.
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27th August 2016, 17:02 | #85 | Link | |
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if you want to play modern codecs, you should get a proper pc not some underpowered laptop laptop are made to be portable and low power
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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; 27th August 2016 at 19:13. |
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29th August 2016, 03:56 | #86 | Link |
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Since AMD's Zen cores are intended to scale all the way down to power consumption levels that are similar to their Jaguar cores, it's theoretically possible that AMD will be more proactive in implementing AV1 hardware decoding in their Zen APUs since it'll be much more important for such low-power form-factors.
Last edited by Nintendo Maniac 64; 29th August 2016 at 04:30. |
29th August 2016, 15:18 | #87 | Link | |
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30th August 2016, 10:53 | #88 | Link | |
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6th September 2016, 07:20 | #89 | Link |
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Some presentations from VideoLAN Dev Days 2016 that may or may not be relevant:
VideoLAN Dev Days 2016: Daala VideoLAN Dev Days 2016: Update on VPX Then stand back and watch as I cheat the system! Last edited by Nintendo Maniac 64; 6th September 2016 at 07:24. |
11th September 2016, 06:38 | #92 | Link |
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New web codec AOM. Codec VP10 turned into to AV1.
https://chromium.googlesource.com/we...px/+/nextgenv2 https://github.com/mbebenita/aomanalyzer Websites obsolete: https://github.com/jmvalin/aom https://github.com/smarter/aom Last edited by Jamaika; 11th September 2016 at 09:45. |
20th October 2016, 22:34 | #95 | Link |
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Problem with conversion
https://www.sendspace.com/file/2qnw7j Last edited by Jamaika; 21st October 2016 at 07:52. |
31st October 2016, 08:58 | #96 | Link |
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Test Clare codec AV1 vs X165 is underestimated because preset is good, bpg has veryslow.
Preset for X265 is: 0.ultrafast 1.superfast 2.veryfast 3.faster 4.fast 5.medium (default) 6.slow 7.slower 8.veryslow 9.placebo Preset for VPX/AOM is: 0. rt + 37% quality 5. good (default) + 50% quality 9. best + max.63% quality I associate it mistakenly with the parameter VPX "cq-level". So you could set for veryslow quality VPX best + max.63%. No one probably doesn't know what effect it has value of quality "min-q". The first frame is always a big mistake for added value for codec VPX and AV1. Interesting is also why each encoder VPX&AOM has a different parameter of quality. FFmpeg has CRF. What possesses Adobe plugin 1.003? Must enter function "cq-level". Changing the value of quality means a change bitrate and the number of frames P. 37% is 2frames, 50% is 4 frames, 63% is 6 frames. It is a pity that libvpx isn't such fuction. I could make a mistake because I did not use the same function {--tile-columns=4 --arnr-maxframes=7 --arnr-strength=5}. Approached by a characteristic size of the frame to the X265. Changing good to best doesn't change the size of the bitrate, only the number of reference vectors in frame. Edit: The function pass 2 is a falsification. There is no dynamic frame B. Analyzer video Elecard doesn't show that it has been implemented. Last edited by Jamaika; 20th December 2016 at 10:25. |
1st November 2016, 14:39 | #97 | Link |
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In the VPx series, "min-q" always set the minimum quality. No frame would be encoded with a quality less than that IIRC, depending on other settings, this could lead to either dropped frames or increased bitrate (historically there wasn't a VPx "VBV" to violate, but that is changing with AOM).
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1st November 2016, 14:58 | #98 | Link |
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I didn't notice dropped frames. However, the bitrate of the first frame I is 2x larger or less than others frames I. It depends on the aspect ratio video. Why is it like that? Only the creator knows.
We'll see how Elecard release free analyzer. It is only known that the AOM is based on VP9 Last edited by Jamaika; 1st November 2016 at 15:50. |
1st November 2016, 16:43 | #99 | Link | |
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Why it would depend on aspect ratios is baffling. Was this different content aspect ratios in square pixel, or different SARs? If you have a repro-able bug, it should get passed on to the AOM folks. |
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1st November 2016, 17:12 | #100 | Link |
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Thanks for hints. Indeed AOM fixed problem first frame I. No need to to use min-q for the FullHD. To test this, I used the analyzer mkvinfo.
mkvinfo -s av1.webm >> av1.txt Unfortunately, I can't create (profile 3) movies 4K. Encoder requires 16MB RAM. I've got too old for computer. Code:
Track 1: video, codec ID: V_AV1, mkvmerge/mkvextract track ID: 0, pixel width: 2048, pixel height: 1152, yuv422p10le (profile 3), min-q=0 I frame, track 1, timecode 0 (00:00:00.000), size 166818, adler 0x00b4b52f ... I frame, track 1, timecode 2000 (00:00:02.000), size 151294, adler 0x7c901f15 ... I frame, track 1, timecode 4000 (00:00:04.000), size 153129, adler 0xf2b726d9 ... I frame, track 1, timecode 6000 (00:00:06.000), size 163401, adler 0xb73093d4 ... I frame, track 1, timecode 8000 (00:00:08.000), size 184388, adler 0x19ddc916 Code:
Track 1: video, codec ID: V_AV1, mkvmerge/mkvextract track ID: 0, pixel width: 3840, pixel height: 2160, yuv420p10le (profile 2), min-q=0 I frame, track 1, timecode 0 (00:00:00.000), size 483939, adler 0x9517be61 ... I frame, track 1, timecode 2000 (00:00:02.000), size 379716, adler 0x3066620a ... I frame, track 1, timecode 4000 (00:00:04.000), size 385909, adler 0x409e46ec ... I frame, track 1, timecode 6000 (00:00:06.000), size 402404, adler 0xfe265630 ... I frame, track 1, timecode 8000 (00:00:08.000), size 380221, adler 0x36dd028a ... I frame, track 1, timecode 10000 (00:00:10.000), size 498620, adler 0x16fbcc9d ... I frame, track 1, timecode 12000 (00:00:12.000), size 414623, adler 0xa940b1b2 Code:
Track 1: video, codec ID: V_AV1, mkvmerge/mkvextract track ID: 0, pixel width: 3840, pixel height: 2160, yuv420p10le (profile 2), min-q=5 I frame, track 1, timecode 0 (00:00:00.000), size 346569, adler 0x2f11e1bc ... I frame, track 1, timecode 2000 (00:00:02.000), size 340183, adler 0x2be6ca69 ... I frame, track 1, timecode 4000 (00:00:04.000), size 341161, adler 0xcdc0e26d ... I frame, track 1, timecode 6000 (00:00:06.000), size 356605, adler 0x8767bc55 ... I frame, track 1, timecode 8000 (00:00:08.000), size 369449, adler 0xa6319ee4 ... I frame, track 1, timecode 10000 (00:00:10.000), size 369914, adler 0xb9adbcbc Last edited by Jamaika; 2nd November 2016 at 11:08. |
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