docker-compose.yml

version: '3'
services:
  stream-recorder:
    image: linuxserver/ffmpeg
    container_name: icecast_recorder
    volumes:
      - ./recordings:/config
    entrypoint: /bin/sh -c "ionice -c 3 nice -n 19 ffmpeg \
      -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 5 \
      -i https://stm01.virtualcast.com.br:8332/ararangua  \
      -c copy -f segment -segment_time 3600 -strftime 1 /config/output_%Y-%m-%d_%H-%M-%S.aac"
    restart: unless-stopped

version: '3'
services:
  stream-recorder:
    image: linuxserver/ffmpeg
    container_name: icecast_recorder
    volumes:
      - ./recordings:/config
    entrypoint: /bin/sh -c "ionice -c 3 nice -n 19 ffmpeg \
      -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 5 \
      -i https://stm01.virtualcast.com.br:8332/ararangua  \
      -af \"aresample=16000\" \
      -c flac -compression_level 12 \
      -f segment -segment_time 3600 -strftime 1 /config/output_%Y-%m-%d_%H-%M-%S.flac"
    restart: unless-stopped

FLAC deixa a gravação maiores que somente copiar AAC