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Build with WasmEdge-FFmpeg Plug-in

The WasmEdge-FFmpeg plug-in provides WebAssembly bindings to the FFmpeg multimedia framework, enabling WasmEdge applications to encode, decode, transcode, mux, demux, stream, filter, and play audio and video content. It wraps the core FFmpeg libraries: libavcodec, libavformat, libavfilter, libavdevice, libavutil, libswresample, and libswscale.

Prerequisites​

Install the FFmpeg development libraries on your system.

For Ubuntu 20.04:

sudo apt update
sudo apt install -y libavdevice-dev libavfilter-dev libavformat-dev \
  libavcodec-dev libswresample-dev libswscale-dev libavutil-dev

For macOS:

brew install ffmpeg

Build WasmEdge with WasmEdge-FFmpeg Plug-in​

To enable the WasmEdge-FFmpeg plug-in, developers need to build WasmEdge from source with the cmake option -DWASMEDGE_PLUGIN_FFMPEG=ON.

cd <path/to/your/wasmedge/source/folder>
cmake -GNinja -Bbuild -DCMAKE_BUILD_TYPE=Release -DWASMEDGE_PLUGIN_FFMPEG=ON
cmake --build build
cmake --install build
note

If the built wasmedge CLI tool cannot find the WasmEdge-FFmpeg plug-in, you can set the WASMEDGE_PLUGIN_PATH environment variable to the plug-in installation path (such as /usr/local/lib/wasmedge/, or the built plug-in path build/plugins/wasmedge_ffmpeg/) to try to fix this issue.

Then you will have an executable wasmedge runtime under /usr/local/bin and the WasmEdge-FFmpeg plug-in under /usr/local/lib/wasmedge/libwasmedgePluginWasmEdgeFFmpeg.so after installation.

For more information, you can refer to the GitHub repository.