11/11/2023 0 Comments Ffmpeg filter complex overlay![]() ![]() Using FFmpeg 1.2.1 installed using MacPorts:įfmpeg version 1.2.1 Copyright (c) 2000-2013 the FFmpeg developersīuilt on 13:46:11 with Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)Ĭonfiguration: -prefix=/opt/local -enable-swscale -enable-avfilter -enable-libmp3lame -enable-libvorbis -enable-libopus -enable-libtheora -enable-libschroedinger -enable-libopenjpeg -enable-libmodplug -enable-libvpx -enable-libspeex -enable-libass -enable-libbluray -enable-gnutls -enable-libfreetype -mandir=/opt/local/share/man -enable-shared -enable-pthreads -cc=/usr/bin/clang -arch=x86_64 -enable-yasm -enable-gpl -enable-postproc -enable-libx264 -enable-libxvid See the FFmpeg H.264 Video Encoding Guide for more information on getting a good quality output.Encoding a video using "overlay=shortest=1" in the filter chain will lead to the last frame being dropped.For example, you could use aliases to shorten the command: overlay=(W-w)/2:(H-h)/2 ![]() See the documentation on the overlay video filter for more information and examples.You may have to re-encode depending on your output container format. The audio is simply stream copied (remuxed) in this example with -codec:a copy instead of being re-encoded.Using -filter_complex will allow you omit the movie multimedia source filter and have a shorter command.-vf is used for simple filtergraphs (one input, one output), and -filter_complex is used for complex filtergraphs (one or more inputs, one or more outputs)."overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" -codec:a copy output.flv ![]() To centre overlay/watermark on a video, use this command: ffmpeg -i inputvideo.avi -i watermarklogo.png -filter_complex \ FFmpeg offers the overlay filter as a way to overlay images (or even other videos) onto video streams. ![]()
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