> Jun 8, 2021, 07:38 by wenbin.c...@intel.com: > > >> Apr 29, 2021, 03:52 by d...@lynne.ee: > >> > >> > This patch allows for alternative loader implementations. > >> > > >> > Patch attached. > >> > > >> > >> Forgot to fix a flag, v2 attached. > >> > > > > Hi Lynne: > > I tried the following command: > > "ffmpeg -init_hw_device vulkan=vul:0 -filter_hw_device vul -i 1080p.264 -vf > "hwupload=extra_hw_frames=16,scale_vulkan=w=1920:h1080" -f null" > > It report a segmentation fault at > https://github.com/FFmpeg/FFmpeg/blob/282b9f4cba7ca361c43ac9f94031a > 43109df0a4f/libavutil/hwcontext_vulkan.c#L1018 > > The function pointer vk->CreateCommandPool is NULL. > > I build on ffmpeg master. > > > > Weird. What Vulkan drivers and what OS was used? > If CreateCommandPool is NULL then initialization probably > wouldn't even happen.
I use linux ubuntu 20.04 and I get the vulkan driver from: https://www.lunarg.com/vulkan-sdk/. I see the load_functions() is called three times, but none of them set "has_dev" argument to 1. I tried to change the code in https://github.com/FFmpeg/FFmpeg/blob/591b88e6787c4e678237f02a50421d101abd25c2/libavutil/hwcontext_vulkan.c#L1352 to "load_functions(ctx, 1, 1)". The problem is unseen. > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
