how-to-build.md

1 Prepare & Build

rm -rf build
git checkout -- build
git submodule update --init --recursive
docker run --rm -it -v ./:/mnt -w /opt kagamihi/ffmpeg.js
cp -a /mnt/{.git,build,Makefile} . && source /root/emsdk/emsdk_env.sh && make && cp ffmpeg*.js /mnt

2 Remove NodeJS deps

Exit from docker

Next find in vscode regexp require\("\w+"\) with filter ./*.js

3 Move result to dist

rm -rf dist && mkdir dist
cp ffmpeg-worker-webm.js dist/ffmpeg-wav-to-opus-worker.js 
cp ffmpeg-webm.js dist/ffmpeg-wav-to-opus.js 
cp ffmpeg-worker-mp4.js dist/ffmpeg-wav-to-aac-worker.js
cp ffmpeg-worker-mp4.js dist/ffmpeg-wav-to-aac.js