Ubuntu ffmpeg testing11/11/2023 ![]() ![]() Install Apple's command line developer tools. Sudo apt-get install autoconf git g++ libtool libsdl2-gfx-dev libogg-dev libjpeg-dev libpng-dev check Run the following command to install dependencies: If you have a package manager that has separate -dev versions with the public headers, make sure you install those in addition to the actual libraries. Instructions for installing these packages are OS-specific (feel free to contribute some here, especially if you tried installing these somewhere and ran into difficulties you will likely save other people some pain). libwxgtk2.8 (optional: only needed if -enable-analyzer is passed to.libsdl2 (can by skipped if you pass -disable-player to.libcheck (v0.9.8 or later, can be skipped if you pass -disable-unit-tests to.Standard build tools (autoconf, automake v1.11 or later, libtool, pkg-config, and a C compiler).Installation Obtaining dependencies Linux 8 Showing frame differences in a y4m file.To the human eye this didn’t really make a difference between having the 720p source in full-screen or the 1080p fullscreen. Upscalingĥ,000 kbps will be okay at 1080p not so much 1440p but i still ran the FFmpeg upscale on the 720p source file: If you want a quick encode just to knock some size out of the file: Fast 23. If you have time up your sleeve and want a good solid compress: Veryslow 21. ![]() If you want to reduce the file size but keep good quality and not have it take forever: Slow 22. The faster presets also seemed to add size onto the input file aswell as more bitrate. But the finding for ultrafast seem defunct. ![]() The ultrafast preset seemed to play up for me, not sure if it was the small input file being the culprit. In general a slower encode means smaller file size and quicker means little compress. The aim was to test out which of the encoding presets and crf factor gave the smaller file to time ratio. 111 MB file size at a bitrate of 5,002 kbps. Test computer: Ry8 cores 16 threads 3.7 GHz. ![]() I decided to do some testing with FFmpeg in seeing the time, filesize and bitrate differences when choosing different presets and crf plus some upscaling. ![]()
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