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23rd April 2016, 16:45 | #20741 | Link | |
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I promise I'll never ask you about this feature in the future. |
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24th April 2016, 11:57 | #20743 | Link |
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Use MadVR with LAV. MadVR does a very good HDR to SDR conversion using the metadata provided by LAV, with many options to get the best possible result on your non HDR display.
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24th April 2016, 17:24 | #20744 | Link |
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Would it be possible that 1080p 60fps get blacklisted for DXVA2 CB/native with < GCN 1.2 GPUs? I get unstable playback with it with madVR (with R9 390) and it's not possible to just uncheck 60fps (videos with lower requirements run fine).
And maybe RGB output levels and dithering method options should be grayed out when all formats are checked? Or am I mistaken and these options still have an effect then? |
24th April 2016, 17:32 | #20745 | Link | |
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Just because a format is enabled doesn't mean its supported by the renderer, it could still use something with a lower bitdepth or fallback to RGB.
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LAV Filters - open source ffmpeg based media splitter and decoders |
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26th April 2016, 01:00 | #20747 | Link | |
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HDR video on regular displays look brighter. I guess there is little we could about this without affecting the video quality of non-HDR videos
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26th April 2016, 19:25 | #20748 | Link | |
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A quick follow up on my earlier question about mono audio processing.
I just realized mpc-hc now supports WASAPI with the latest 1.7.10: Quote:
(FYI, you have to set Output->Audio Renderer = Internal and the checkbox Internal Renderers->Audio Filter = Exclusive mode) But it seems to set the channel mask to match your speaker setup, so everything works perfectly. And I can easily correct for that HE-AAC encode by just downmixing to mono in LAV audio. All is good, and no more reclock! |
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28th April 2016, 16:53 | #20749 | Link |
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On an old laptop with Intel 965 Express chipset and Vista x86 SP2, latest LAV filters do not provide HW acceleration for MPEG2_VLD.
I tried MPC-HC which falls back to SW and DXVA Checker which can't connect to EVR renderer. On the other hand, MS DS MPEG2 decoder works on the same MPEG2 clips and provides HW acceleration.
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28th April 2016, 17:14 | #20751 | Link |
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It's VLD because DXVA Checker says so and the CPU usage is almost 0% in Decode mode.
Also, the decoding speed is impressive even for 1080p MPEG2 clips.
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28th April 2016, 21:01 | #20752 | Link |
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I am using MPC-HC and LAV filters to watch live TV. When using the Intel quicksync decoder in LAV Video the aspect ratio of mpeg2 channels are always read incorrectly as 4:3 rather than 16:9.
This can be resolved by setting LAV to ignore aspect ratio, to set LAV to not use hardware decoding for mpeg2 or by using any other decoder apart from quicksync. I have tested this with EVR to make sure it wasn't MadVR causing the problem. The problem doesn't occur with h264 channels. |
29th April 2016, 13:41 | #20753 | Link |
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The only weird thing I noticed about MS DS MPEG2 decoder is that it has IMC3 output.
I don't know if that helps anywhere.
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29th April 2016, 13:45 | #20754 | Link |
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You could always check the DXVA device with DXVA Checker if it supports NV12 output, thats a requirement for LAV (and generally also the only format any other drivers/GPUs seem to output, short of P010 for 10-bit of course). There are no other rules that would block the Intel GPU from doing its job.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 29th April 2016 at 13:48. |
29th April 2016, 13:53 | #20755 | Link |
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Maybe it's one of those proprietary decoding devices that Intel supported in older HW
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29th April 2016, 14:37 | #20756 | Link |
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As i remember - old Intel do DXVA 2.0 'IMC3' output. MPC-BE support it.
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29th April 2016, 15:31 | #20757 | Link | ||
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It works perfectly with both MPC-BE and standalone filters. Update: MPC-Be standalone filters use output NV12 and the acceleration works perfectly. So, I don't know what's going on with LAV!
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Win 10 x64 (19042.572) - Core i5-2400 - Radeon RX 470 (20.10.1) HEVC decoding benchmarks H.264 DXVA Benchmarks for all Last edited by NikosD; 29th April 2016 at 15:41. |
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30th April 2016, 07:31 | #20758 | Link |
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LAV support only NV12/P010 for DXVA.
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1st May 2016, 20:45 | #20759 | Link | |
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2nd May 2016, 23:52 | #20760 | Link |
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Any idea what might be happning here? In order to get HEVC support in all players (not just VLC, for example), I switched from CoreAVC to LAV (this is in Win10, which doesn't actually have built-in support unless you have select few video cards).
All was well, until I noticed new behavior: mkv's (x264 or HEVC) all have a glitch, for lack of a better word, exactly two minutes before the end. It amounts to only a few seconds of the video essentially being skipped (video and audio), but it is annoying. It doesn't happen with mp4 files. It's not a problem with the videos since the problem doesn't show up in VLC or MPC-HC or WMP. In fact, so far I've only been able to reproduce it in Bsplayer, but it most definitely did not have that problem when using CoreAVC, so it's something to do with LAV in conjunction with at least Bsplayer. |
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decoders, directshow, filters, splitter |
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