86 lines
3.3 KiB
Python
86 lines
3.3 KiB
Python
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"""Art-Net-Emulator (PLAN.md §16, §29.2, §36 Nr. 7–8).
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Simuliert ein Lichtpult für Gate-0-Tests:
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- poll: sendet ArtPoll und zeigt die ArtPollReply des Nodes (Media Server)
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- sweep: fährt einen Fader über Layer-Opacity (16 Bit, Kanäle 2–3) und
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sendet ArtDMX mit Sequenznummern
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Nur für Testnetze bestimmt; kein Ersatz für den Hardwarepulttest (§29.7).
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"""
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from __future__ import annotations
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import argparse
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import socket
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import time
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from hms_artnet.packets import build_dmx, build_poll, parse_poll_reply
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def cmd_poll(host: str, port: int) -> int:
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with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
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sock.settimeout(2.0)
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sock.bind(("0.0.0.0", 0))
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local_port = sock.getsockname()[1]
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sock.sendto(build_poll(talk_to_me=0x00), (host, port))
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try:
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data, addr = sock.recvfrom(2048)
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except TimeoutError:
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print("keine ArtPollReply erhalten (Timeout)")
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return 1
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info = parse_poll_reply(data)
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if info is None:
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print(f"ungültige Antwort von {addr}")
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return 1
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print(f"ArtPollReply von {addr[0]} → lokal gebunden auf Port {local_port}")
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print(f" IP: {info.ip}")
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print(f" ShortName: {info.short_name}")
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print(f" LongName: {info.long_name}")
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print(f" NodeReport: {info.node_report}")
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print(f" Style: 0x{info.style:02X} (0x02 = StMedia/Media Server)")
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print(f" Ports: {info.num_ports}")
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return 0
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def cmd_sweep(host: str, port: int, universe: int, rate_hz: float, cycles: int) -> int:
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sequence = 0
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with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
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for _ in range(cycles):
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for step in range(0, 256, 8):
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# Layer64-Layout: Kanal 1 Enable, Kanal 2-3 Opacity 16 Bit (MSB zuerst)
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data = bytearray(16)
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data[0] = 255
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data[1] = step
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data[2] = 0
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sequence = (sequence % 255) + 1
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sock.sendto(build_dmx(universe, bytes(data), sequence=sequence), (host, port))
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time.sleep(1.0 / rate_hz)
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for step in range(255, -1, -8):
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data = bytearray(16)
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data[0] = 255
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data[1] = step
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data[2] = 0
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sequence = (sequence % 255) + 1
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sock.sendto(build_dmx(universe, bytes(data), sequence=sequence), (host, port))
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time.sleep(1.0 / rate_hz)
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print(f"sweep abgeschlossen: {cycles} Zyklen auf Universe {universe}")
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return 0
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def main(argv: list[str] | None = None) -> int:
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parser = argparse.ArgumentParser(prog="artnet_emulator")
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parser.add_argument("--host", default="127.0.0.1")
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parser.add_argument("--port", type=int, default=6454)
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parser.add_argument("--mode", choices=["poll", "sweep"], required=True)
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parser.add_argument("--universe", type=int, default=0)
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parser.add_argument("--rate", type=float, default=40.0, help="Pakete pro Sekunde")
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parser.add_argument("--cycles", type=int, default=1)
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args = parser.parse_args(argv)
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if args.mode == "poll":
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return cmd_poll(args.host, args.port)
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return cmd_sweep(args.host, args.port, args.universe, args.rate, args.cycles)
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if __name__ == "__main__":
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raise SystemExit(main())
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