SPECIFIC_CHANGES.md

FFmpeg Specific Builds

BtbN/FFmpeg-Builds builds full versions of FFmpeg that include all dependencies, thus the size of each asset is somehow too large.
For example, ffmpeg-master-latest-win64-lgpl.zip ≈ 100 MB.
Here, the aim of this repo is to smallize the asset size by customize the build configuration.

Changes compared to BtbN/FFmpeg-Builds

• .github/workflows/*

  • remove all the *.yml
  • create release.yml
  • create build-win-arm64.yml

• build.sh
  set FF_CONFIGURE="${FF_SPECIFIC_CONFIGURE:-$FF_CONFIGURE}" before the command

./configure --prefix=/ffbuild/prefix --pkg-config-flags="--static" \$FFBUILD_TARGET_FLAGS $FF_CONFIGURE \
...

• util/vars.sh

- REPO="${GITHUB_REPOSITORY:-btbn/ffmpeg-builds}"
+ REPO="btbn/ffmpeg-builds"

HOW TO BUILD

Follow the steps below.

• Set up Github Action secret/env FF_SPECIFIC_CONFIGURE
  Here is an example.

--disable-debug --disable-doc --disable-ffplay --disable-ffprobe --enable-static --disable-shared --disable-network --disable-autodetect --disable-decoders --disable-gpl --disable-version3 --enable-decoder='h264,aac*,mp3*,mp4' --disable-encoders --disable-demuxers --enable-demuxer='concat,mov,m4v,flv,mp3' --disable-muxers --enable-muxer='flv,mp4,mp3' --enable-encoder='libmp3lame,mp3' --disable-parsers --enable-parser=h264 --disable-protocols --enable-protocol='concat,file' --disable-bsfs --enable-bsf='h264_metadata,h264_mp4toannexb' --disable-filters --enable-filter='concat,aresample' --disable-iconv --enable-small

In addition, you should trigger the variant lgpl to gpl or so on in .github/workflows/release.yml if needed.

matrix:
    target: [win64, linux64, linuxarm64]
    variant: [lgpl]

• Trigger workflow dispatch manually in Github Actions.

• If more complex config for windows on arm64, lib SDL or x264 may be needed.
  If runs failed, you can take a look at https://github.com/dvhh/ffmpeg-wos-arm64-build