This fork

This fork compiles a minimal version of FFmpeg to include in a web browser (wasm). The build now includes a focused audio toolset:

• Common audio decoders (AAC, AC3/E-AC3, MP3/MP2, FLAC, ALAC, DTS, TrueHD, Vorbis, Opus, WavPack, several PCM and ADPCM variants) and MP3 encoding via libmp3lame.
• Container demuxing/muxing, subtitle (subrip/ass/webvtt/movtext/dvbsub/pgssub) encode/decode support remain, while video codecs are still excluded for size.
• Enabled audio filters are: abuffer, aformat, abuffersink, anull, anullsrc, anullsink, aresample, channelmap, pan, volume, atrim, afade, adelay, amix, amerge, asplit, acrossfade, silencedetect, silenceremove, asetpts, asetrate, aeval, acompressor, alimiter, highpass, lowpass, astats.

The main changes of this fork:

• Dockerfile disable all codecs, unnecessary builders and esm build.
• ffmpeg-wasm.sh remove link libraries

Building (using make prd) builds two binaries packages/core/dist/umd/ffmpeg-core.{wasm,js}. Previously the ultra-minimal (no codecs) build wasm was ~3.8MB; with the added audio decoders and MP3 encoder it is ~ 4.4MB

These binaries can be loaded using the @ffmpeg/ffmpeg package and served by the web server.

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This project is looking for maintainers. If you are interested to give it a go, please email me to further discuss maintenance.

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ffmpeg.wasm

ffmpeg.wasm is a pure Webassembly / Javascript port of FFmpeg. It enables video & audio record, convert and stream right inside browsers.

Join us on Discord!

Documentation

• Introduction
• Getting Started
• API
• FAQ
• Contribution

Please sponsor ffmpeg.wasm to make it sustainable. ❤️