A Docker image to stream audio to a SIP client.
docker build --rm -t sip-streamer .SIP_IDSIP 'from' address. When using with turbobridge, this can a anything. Excampleuser@example.com.SIP_ADDRSIP destination address.STREAM_URLLocation of the source stream. As this is processed throughffmpeg, any url can be supplied that ffmpeg can open. If if video is given, only the audio will be used.
docker run --rm \
-e STREAM_URL=https://example.com/stream.mp3 \
-e SIP_ID=user@example.com \
-e SIP_ADDR=destination@example.com \
-t sip-streamer:latest- A fifo file is created to pipe the audio
baresipis started in the background and connects toSIP_ADDRand plays audio from the fifo buffer.ffmpegreads data fromSTREAM_URL, applies a compressor, downmixes it to mono, and sends it into the fifo as uncompressed PCM audio.- If the
ffmpegproccess exits or crashes, the whole container stops. (to be restarted by the container manager) This causes a restart if the stream is unavailable or the call ends. If a call cannot be placed, the program is stuck, and needs to be restarted manually.