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MAC_DEVELOPMENT.md

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Running on MacOS

To run Donut locally using MacOS, make sure you have ffmpeg@5 installed:

brew install ffmpeg@5

You can have multiple versions of ffmpeg installed in your mac. To find where the specific `ffmpeg@5`` was installed, run:

sudo find /opt/homebrew -name avcodec.h

Let's assume the prior command showed two entries:

sudo find /opt/homebrew -name avcodec.h
/opt/homebrew/Cellar/ffmpeg/7.0_1/include/libavcodec/avcodec.h
/opt/homebrew/Cellar/ffmpeg@5/5.1.4_6/include/libavcodec/avcodec.h

You must configure the CGO library path pointing it to ffmpeg 5 (5.1.4_6) folder not the newest (7.0_1).

export CGO_LDFLAGS="-L/opt/homebrew/Cellar/ffmpeg@5/5.1.4_6/lib/"
export CGO_CFLAGS="-I/opt/homebrew/Cellar/ffmpeg@5/5.1.4_6/include/"
export PKG_CONFIG_PATH="/opt/homebrew/Cellar/ffmpeg@5/5.1.4_6/lib/pkgconfig"

After you set the proper cgo paths, you can run it locally:

go run main.go -- --enable-ice-mux=true
go test -v ./...

Simulating SRT and RTMP live streaming

You can use docker to simulate SRT and RTMP streaming:

# docker compose stop && docker compose down && docker compose up nginx_rtmp haivision_srt
make run-srt-rtmp-streaming-alone

They're both now exposed RTMP/1935 and SRT/40052 in your localhost. You can use VLC to test both streams:

  • vlc rtmp://localhost/live/app
  • vlc srt://localhost:40052