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25th October 2018, 17:16 | #23101 | Link |
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Pentium N3700 is not Skylake, thats Braswell, ie. an Atom core.
But I probably still have that one somewhere.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 25th October 2018 at 17:23. |
26th October 2018, 17:00 | #23104 | Link |
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I can explain my mistakes and never repeat them again.
I saw two VP9 device decoders in an old DXVA Checker screenshot for Apollo and I thought that one of them was 10bit, but no - it was just VP9 from Intel. And I saw the benchmarks regarding hybrid VP9 so I thought we were talking about Skylake, but no - it was Braswell. Both my mistakes were minor and don't alter the main meaning of the content that they were referring to, so I can live with that And both Wanez and Nevcairiel are excellent debuggers (along with huhn) so the rest of the people can be sure that everything is properly corrected
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27th October 2018, 07:41 | #23105 | Link |
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nevcairiel,
I've ran into a couple of DVD problems using Lav Filters 0.73.1 DVD Audio Sample (at the menu play all) https://www.dropbox.com/s/u2eiarh9an...Audio.zip?dl=0 There is an audio glitch (audio is delayed / distorted) during the start of playback when the ending credits play after the episode preview, going back to 0.71.0 fixes the problem. DVD Subs Sample (at the menu play all) https://www.dropbox.com/s/5qpf6qbnti...0Subs.zip?dl=0 The last subtitle lines displayed are stuck on screen during playback, The Microsoft and PowerDVD decoders work without problems. I've included the subtitle files with the sample in case that helps track down the problem. Winows 7 64bit Pro. MPC-HC 1.8.3 64bit EVR Custom Presenter S/PDIF Output. Thanks. |
29th October 2018, 12:26 | #23106 | Link |
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VP9 hybrid works fine for Skylake and LAV Filters with the help of DXVA Checker tool.
You have to go to the GPU menu below left of the first screen and then to "Driver settings" and enable VP9 acceleration by setting ON instead of AUTO the VP9 Decode setting. It seems that Intel disables VP9 hybrid acceleration by default in their drivers. After the new setting, VP9 hybrid acceleration works for any app (DXVA Checker, MPC-HC etc)
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9th November 2018, 09:23 | #23107 | Link |
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Can anybody test 50fps 4:2:2 H265 20180428-175510_4K ENC 3 RMAD VS LEG.ts (563MB) https://yadi.sk/d/m0s5ztpj3XnUyw on RTX2080 with NVIDIA CUVID hardware acceleration (according to https://developer.nvidia.com/nvidia-...#NVDECFeatures - I hope ** 4:2:2 is not natively supported on HW just forget to remove from NVDEC section after Turing out - it may be accelerated successfully)? Btw theoretically must LAV Video Decoder be changed to support hardware acceleration not only 4:2:0 according to * The Video Codec SDK, which exposes new decoder improvements and features of Turing will be released soon... before or after that release (in new driver?)?
Last edited by VictorLS; 9th November 2018 at 09:31. |
9th November 2018, 12:07 | #23108 | Link |
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4:2:2 decoding is not supported in hardware.
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LAV Filters - open source ffmpeg based media splitter and decoders |
9th November 2018, 20:16 | #23109 | Link |
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How I understand this is Turing supports 4:2:0 and 4:4:4, but not 4:2:2 (or else it would in the table along with 4:4:4, which is only available on Turing).
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10th November 2018, 10:29 | #23110 | Link |
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I understand the same but it seemed very strange. And I hope this is just mistake jn that page - I need 4:2:2 hardware acceleration for SAT feeds - record of one of them I've mentioned above. CPUs that can fluently play that (like i7 or top Ryzen) are very expansive but i.e. RT(X)2030 must be cheap enough...
Last edited by VictorLS; 10th November 2018 at 10:31. |
10th November 2018, 12:07 | #23112 | Link |
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There is or there isn't?
I agree with one thing - before Turing there wasn't any hardware acceleration for non-4:2:0 by any desktop videocard for home use (may be special videocards was able decode 4:2:2 because some very expansive SAT set-top-boxes support 4:2:2 decoding in their hardware). |
10th November 2018, 15:21 | #23114 | Link |
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Ryzen 2400G and D3D11 mode
Hello,
I have a problem with my Ryzen 2400G and D3D11 mode. In DXVA2 mode, no problem, the video is perfectly fluid. But in D3D11, the image seems to be raffrachied only once a second instead of the usual 24. Anybody have this bug too ? Thanks for your help. |
10th November 2018, 19:41 | #23116 | Link |
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@Nevcairiel
Two quick questions: 1) when a HDR metadata file has 0 for MaxMDL, do you replace it with a default value, and is that default value 1100nits? I'm asking because I get this value reported by MadVR on the OSD when the metatada reported on the disc is 0, fo example with Life of Pi US. Not a big deal but it would be nice to know for sure where it comes from. 2) For some titles, the metadata reported by LAV is changed to completely different values compared to what's on the disc. For example, with Goodfellas UK, the values on the disk are 247/60 for MaxCLL/MaxFALL, they become 500/200 when reported by LAV. I don't think this is a LAV issue because Mediainfo reports the same altered values when reading the mkv file, so it most probably happens during decryption, but I'm wondering if it could be related to some studios hiding a watermark during the rip of the disc in the metadata, as reported here: https://www.makemkv.com/forum/viewtopic.php?t=17008. Do you have an opinion on this, or have you come across it and do you have an explanation? Thanks!
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10th November 2018, 21:17 | #23118 | Link |
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Hey, Nev, are you aware of any more issues with ATMOS audio tracks? This is a Disney seamless branching UHD (Incredibles 2) that I'm dealing with. I've tried ripping it with two different pieces of software but the audio track is giving me all kinds of issues. It's far worse if I try to bitstream (audio cuts out completely at one point, restart the movie and have sync issues, pops where the audio drops and comes back, etc) than if I decode to PCM. But even PCM the audio has artifacts (pops due to audio drops, sync issues). I've tried with both MC and MPC-HC and I have pretty consistent results. Not sure if this is a problem with ripping the title but I've tried MakeMKV 1.14.1 and CloneBD and end up with issues with both. Thanks!
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10th November 2018, 23:17 | #23119 | Link |
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@milousebw: if you select a specific GPU then you put D3D11 in copyback mode so it works with any renderer but the decoded frames need to be transfered back to main memory which is often more demanding of system resources and so is not recommended for iGPUs.
If you leave it on Automatic you get native mode which needs to connect directly with the renderer and currently only works with madVR, but is supposed to be lighter on the system (the renderer is working directly with the decoded frames already in video memory). Automatic (Native) is supposed to have better performance, but maybe there are bugs with this particular mode with AMD's driver. Were you using madVR when you tried it?
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decoders, directshow, filters, splitter |
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