This inference engine nowadays calls upon DIRECTML in the windows version, or OPENVINO in case of windows on an Intel CPU/iGPU or the Metal equivalent in the MAC World. A model is stuffed into it and then it does the transformation we tell it to do - in our case video related filtering/scaling/noise tretament/etc… In a product like VEAI, we have a so called inference engine, thats the “tool” that is used. Many scaling algos have been ported to vulkan, others to cuda, filters in video editing sometimes come in an OPENCL variant… Its just teh “Programmng language” one uses, not the actual function (filter, scaler…) Source Video: -i "D:\%04d.png" (Image Sequence eg 0001.While this has nothing to do with the topic, I´ll shortly answer:ĬUDA and VULKAN are just means to call up the GPU in order to calculate “something”… There is no “Vulkan upscaling”. \ffmpeg.exe -thread_queue_size 512 -r 24 -i "D:\%04d.png" -i "D:\Max.wav" -c:v libx265 -preset veryslow -crf 0 -c:a aac -strict experimental -b:a 320k "D:\crf0_output.mp4" \ffmpeg.exe -thread_queue_size 512 -r 24 -i "D:\%04d.png" -i "D:\Max.wav" -c:v libx264 -pix_fmt yuv444p -vprofile high444 -vlevel 5.1 -preset veryslow -crf 0 -c:a aac -strict experimental -b:a 320k "D:\crf0_output.mp4" \ffmpeg.exe -thread_queue_size 512 -r 24 -i "D:\%04d.png" -i "D:\Max.wav" -c:v libx264 -pix_fmt yuv420p -vprofile high422 -vlevel 4.2 -preset veryslow -crf 2 -c:a aac -strict experimental -b:a 320k "D:\crf2_output.mp4" \ffmpeg.exe -thread_queue_size 512 -r 24 "D:\%04d.png" -i "D:\Max.wav" -c:v libx264 -pix_fmt yuv420p -vprofile high422 -vlevel 4.2 -preset veryslow -b:v 2410k -c:a aac -strict experimental -b:a 320k -pass 2 "D:\output.mp4" \ffmpeg.exe -thread_queue_size 512 -y -r 24 -i "D:\%04d.png" -i "D:\Max.wav" -c:v libx264 -pix_fmt yuv420p -vprofile high422 -vlevel 4.2 -preset veryslow -b:v 2410k -c:a aac -strict experimental -b:a 320k -pass 1 -f mp4 NULLįor pass 2. In "bin" hold Shift+RightClick and select Open PowerShell.įor pass 1. 2730 - 320 kBit/s (desired audio bitrate) = 2410 kBit/s video bitrate.Available bandwith - Audio Bitrate = Video Bitrate.
(Size in Megabytes * 8192) / Total Length in Seconds = Available bandwith.So if it is higher, it will be compressed by these websites. Youtube and Vimeo usually reduce your bitrate to 25mbs.
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