michaelni changed the topic of #ffmpeg-devel to: Welcome to the FFmpeg development channel | Questions about using FFmpeg or developing with libav* libs should be asked in #ffmpeg | This channel is publicly logged | FFmpeg 7.1 has been released! | Please read ffmpeg.org/developer.html#Code-of-conduct
<Lynne> yes
<Lynne> 2011
<Lynne> 2.13 is the lowest we support, according to the wiki, and 2.10 is the version that got avx2 support
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<cone-817> ffmpeg Lynne master:8c250da8f3ab: vulkan: always enable GL_EXT_shader_explicit_arithmetic_types
<cone-817> ffmpeg Lynne master:6871fd31708d: vulkan: always enable GL_EXT_control_flow_attributes
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<wbs> Lynne: the fate-source test is failing in many (but not all?) fate configs, due to libavutil/vulkan_spirv.h
<Lynne> weird that the bot didn't log this one
<wbs> ah, I didn't see it on ffmpeg-cvslog either
<wbs> that's why it's not failing everywhere - thanks!
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<cone-951> ffmpeg Gyan Doshi release/7.0:f5f590b1e72c: avcodec/libx265: unbreak build for X265_BUILD >= 213
<cone-951> ffmpeg Gyan Doshi release/6.1:4571c80b404f: avcodec/libx265: unbreak build for X265_BUILD >= 213
<cone-951> ffmpeg Gyan Doshi release/6.0:769c36b01378: avcodec/libx265: unbreak build for X265_BUILD >= 213
<cone-951> ffmpeg Gyan Doshi release/5.1:768807492dd6: avcodec/libx265: unbreak build for X265_BUILD >= 213
<cone-951> ffmpeg Gyan Doshi release/5.0:f3eb622fc455: avcodec/libx265: unbreak build for X265_BUILD >= 213
<cone-951> ffmpeg Gyan Doshi release/4.4:283dc2e8eba5: avcodec/libx265: unbreak build for X265_BUILD >= 213
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<haasn> michaelni: hi, do you remember if there is a distinction between BILINEAR and FAST_BILINEAR in the upscaling case?
<haasn> looking at the code I can see that fast bilinear is just a 2 tap bilinear kernel with implicitly computed weights
<haasn> so I'm thinking that we can automatically promote bilinear to fast bilinear whenever we're either upscaling, or the user requests aliasing
<haasn> unless there's something I'm missing
<BtbN> Lynne: something in the recent vulkan commits is triggering a weird failure when making a shared build of ffmpeg: https://github.com/BtbN/FFmpeg-Builds/actions/runs/11201617654/job/31137078349#step:5:4557
<BtbN> I'm not sure what the linkers problem is there. Yes, it's a hidden symbol, but why is it a problem?
<BtbN> Is it somehow trying to be used accross ffmpeg library boundaries?
<BtbN> This happens on all archs. On Windows it's straight up missing symbols though: https://github.com/BtbN/FFmpeg-Builds/actions/runs/11201617654/job/31137074739#step:5:4733
<BtbN> Makes me think that libavcodec needs to also depend on shaderc now?
<Lynne> I was able to replicate earlier, but then I couldn't compile a project after a make clean since some system headers changed
<Lynne> f456522e32e is what broke it, but I'd like to hear some ideas or think about it before reverting it, unless you need it fixed now
<BtbN> What is that even doing on its own?
<BtbN> libavcodec/vulkan doesn't even exist
<Lynne> linking to shaderc/glslang
<BtbN> Are you sure that's the right commit? https://github.com/FFmpeg/FFmpeg/commit/f456522e32e
<Lynne> err, no, that was not the right commit, 893f3fde4cdeb
<jamrial> BtbN: does https://pastebin.com/raw/2KjJeS4a help?
<BtbN> I can't easily test that right now
<Lynne> libavutil doesn't use spirv_compiler, it should be added to libavcodec
<Lynne> I'll try to test now
<jamrial> Lynne: oh, so the files are in lavu but not compiled in it
<Lynne> yes
<jamrial> rather, #included by lavc
<Lynne> yup, "avcodec_suggest="libm stdatomic liblcevc_dec spirv_compiler"" does fix it
<Lynne> I don't entirely understand why liblcevc_dec is there, though
<Lynne> shouldn't liblcevc_dec be in lcevcdec_deps?
<jamrial> Lynne: liblcevc_dec is a library. there's no module using it directly, but rather the generic decode framework using it if needed and present
<Lynne> ah, I see
<Lynne> patch sent
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<cone-951> ffmpeg James Almer master:a77365d86497: configure: include liblcevc_dec ldflags in avcodec_extralibs
<michaelni> haasn, just try if its binary identical. Iam not sure if the implementation gives exactly the same results
<BtbN> I don't see a Patch on the ML, Lynne
<BtbN> Unless I'm missing something?
<Lynne> no, I don't have it in my outbox
<Lynne> I definitely typed the command, maybe I closed it before hitting y one more time
<Lynne> (re?)sent
<BtbN> hm, something seems to be broken
<BtbN> You got the patch on Github or something?
<BtbN> I haven't gotten a single mail from the ML today, hm
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<BtbN> I think it actually needs to be left in regardless, since in theory someone could turn off all those components
<Lynne> ah, you're right
<Lynne> I'll be going to sleep soon, if it works for you too, could you push it?
<Lynne> either that or wait 3 hours, I've got too much work to do to sleep
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<wbs> some parts of the ffmpeg servers were down earlier today, probably also affects the ML
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<jamrial> BtbN: the archive wont even load
<jamrial> actually, ffmpeg.org doesn't load at all
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<Guest54> Hi, I found a bug, namely in the libfdk_aac encoding, I set the encoding with a variable bit rate, but the output data in media info shows that the mode is constant instead of variable
<Guest54> The same problem is discussed here, can you write how to solve this problem?
<BtbN> I doubt that's on ffmpeg. iirc vbr for aac if a bit of a hack in general
<BtbN> And I don't think anyone of the fdk devs will care to fix it
<Guest54> Youtube has variable bitrate audio and I'm wondering what's better constant or variable bitrate and maybe someone knows which encoder they use because the description also says aac_at but is it any good?
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<BtbN> I might have unclogged the ML? But I don't fully understand how
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<BtbN> the ffbox had a failed systemd unit, postfix@-.service, while postfix.service was running fine
<Guest54> There is a solution in the link I provided, but I don't understand whether this modification is on the side of ffmpeg or the codec itself.
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<cone-380> ffmpeg Lynne via ffmpeg-devel master:f339169f35bc: configure: add spirv_compiler to avcodec_suggest
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<Marth64> Lynne: added bdmv seeking
<Marth64> doing a ton of testing today
<Marth64> will submit v3 dvd bugfix set & bdmv demuxer patches tonight
<Marth64> had some issues building with latest master about 12 hours ago but things seem to be working now
<Marth64> (un)conveniently, a tree knocked out power in my neighborhood so i used tht time to take a break
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