| Sunday, January 26th, 2020, 00:24 UTC | ||
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| [12:26:59] | warpme_: | markk_: just need confirmation by Your's expertise: is log entries like this: |
| [12:27:04] | warpme_: | https://www.irccloud.com/pastebin/FMMPpG3E/ |
| [12:27:56] | warpme_: | means that GL driver nor provided output images to render on screen? |
| [12:28:09] | warpme_: | provided->provides |
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| [14:12:02] | markk_: | warpme_: Is the material you are playing interlaced? I'm wondering if my 'custom' prime deinterlacer fails with the NV12 frame format... |
| [14:13:51] | markk_: | if so – can you see what happens if you disable deinterlacing? |
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| [14:43:52] | warpme_: | yes |
| [14:44:36] | warpme_: | markk_: log i'm providing is with DI set to "none" in config.... |
| [14:46:39] | warpme_: | log is from s905 where I have playback black screen. the same sw plays ok on s912. only difference between s905 and s912 is 3d engine: lima vs. panfrost. I'm asking You for confirmation as i want to be 100% sure issue is lima – not i.e. mythtv.... |
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| [14:51:06] | warpme_: | markk_: btw: forgot to mention: playback black screen on s905 is only with v4l2 decode (DRM_PRIME). v4l2_decode_only and sw decode are giving playback ok... |
| [15:27:27] | peterbennett: | Test |
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| [17:04:54] | markk_: | warpme_: if there is no deinterlacing, then I see no potential issues. The drm frame descriptor looks fine. have you tested with the https://github.com/mark-kendall/ffmpeg-drm ? |
| [17:05:37] | markk_: | warpme_: to be clear – the error is in EGL DMA BUF |
| [17:16:37] | warpme_: | markk_: s905(lima) plays ok with v4l2_decode_only – so vdecoder works ok. also s905 vdecoder play ok with rendering to sdl. As EGL DMA BUF works ok for s912 (the same vdecoder; different 3D engine) and also works OK for rpi (different decoder; different 3D engine) – for me it is clear that root cause is EGL DMA BUF in s905 (lima).... |
| [17:17:54] | warpme_: | good idea with Yours ffmpeg-drm – but isn't this tool using DRM planes to rendering – and NOT EGLDMA BUF? |
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| [17:27:53] | markk_: | warpme_: I was just trying to check whether the correct frame format is returned. ffmpeg-drm should give you the best indication. |
| [17:30:23] | markk_: | the decode only for v4l2 takes a slightly different code path |
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| [17:37:58] | warpme_: | markk_: i think frame format is ok as exactly the same sw stack works ok s912. Imho root cause is that calling EGL_LINUX_DMA_BUF_EXT on lima gives black screen. s912 & rpi are calling this api exactly the same (pls confirm) and s912/rpi plays nicely with EGL DMA BUF – so all signs shows lima has bug in EGL_LINUX_DMA_BUF_EXT api. what you think? |
| [17:39:13] | warpme_: | ideally will be to have ffmpeg-drm using EGL – not DRM planes – but this probably requires from this tiny app dealing with GLES(Qt?)..... |
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| [18:10:44] | markk_: | warpme_: as you say, it is most likely that the problem is in the lima DMA BUF code. but there is a small chance the problem lies in the our *patched* version of the v4l2_m2m decoder. The new code will not be hit when using decode only. and the v4l2 driver is presumably different between s905 and s912. I've only tested with the pi – which returns YV420P (not NV12). not sure about s912. |
| [18:11:25] | markk_: | and the libreelec guys did say that the pi v4l2 driver is based on a slightly not-conformant version of the spec. |
| [18:11:49] | markk_: | not -> non |
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| [20:11:31] | peterbennett: | gigem: My mythinstall64 is 2.5 GB after building libs and mythtv |
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| [21:06:52] | gigem: | peterbennett: Yeah, mine's now 2.4 GB. It's just that the Readme.md said to expect 3 GB *before* building running mythbuild.sh. I'll fix it up. |
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