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  1. #!/bin/sh
  2. # TODO: Handle audio from secondary input
  3. set -e
  4. INPUT=../tmp/omni/show0/earth.yuv
  5. HOST=${1:-morla}
  6. if [ "$HOST" = "$(hostname --short)" ]; then
  7. IP=127.0.0.1
  8. else
  9. IP=$(host "$HOST" | grep -Po 'address \K\S+')
  10. fi
  11. FIRSTPORT=${2:-5002} # even number - next 3 ports used too
  12. ACHANNELS=2
  13. AFRAMERATE=48000
  14. ABITRATE=32000
  15. VBITRATE=256000
  16. # based on http://www.webmproject.org/docs/encoder-parameters/#real-time-cbr-encoding-and-streaming
  17. # + Add 1s latency (deadline)
  18. # + Use same RTP payload types as GStreamer
  19. ffmpeg -hide_banner -threads auto -re \
  20. -stream_loop -1 -i "$INPUT" \
  21. -map '0:a' \
  22. -codec:a libopus -ac "$ACHANNELS" -ar "$AFRAMERATE" -b:a "$ABITRATE" \
  23. -f rtp -payload_type 111 "rtp://$IP:$FIRSTPORT?pkt_size=1200" \
  24. -map '0:v' \
  25. -pix_fmt yuv420p \
  26. -codec:v vp8 -quality realtime -deadline 1000000 -cpu-used 15 \
  27. -b:v "$VBITRATE" -minrate "$VBITRATE" -maxrate "$VBITRATE" \
  28. -undershoot-pct 95 -bufsize $((6000*VBITRATE/1000)) -rc_init_occupancy $((4000*VBITRATE/1000)) \
  29. -max-intra-rate 0 \
  30. -qmin 4 -qmax 56 \
  31. -f rtp -payload_type 100 "rtp://$IP:$((FIRSTPORT+2))?pkt_size=1200"