The FFmpeg libraries in bin/ (libavcodec.so.62, libavutil.so.60) are FFmpeg 8.1.3 under the
GNU LGPL 2.1 or later, unmodified, built by CouchRelay with only the parts it uses.
Corresponding source kit, build recipes and replacement instructions: see SOURCES.txt.
Source code: https://ffmpeg.org/releases/ffmpeg-8.1.3.tar.xz (and libopus 1.5.2,
https://downloads.xiph.org/releases/opus/opus-1.5.2.tar.gz, built into libavcodec).
You may replace these libraries with your own FFmpeg 8.1 build. They were configured with:

configure --prefix=/src/target/ffmpeg-min/linux --disable-everything --disable-autodetect --disable-programs --disable-doc --disable-network --disable-iconv --disable-avdevice --disable-avformat --disable-avfilter --disable-swscale --disable-swresample --enable-shared --disable-static --enable-pic --pkg-config-flags=--static --enable-libopus --enable-encoder=libopus --enable-decoder=libopus --enable-decoder=h264,hevc,av1 --enable-vulkan --enable-hwaccel=h264_vulkan,hevc_vulkan,av1_vulkan --enable-encoder=h264_vulkan,hevc_vulkan,av1_vulkan --enable-pthreads --enable-vaapi --enable-encoder=h264_vaapi,hevc_vaapi,av1_vaapi --extra-cflags=-I/tmp/build/Vulkan-Headers-1.4.335/include 