71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
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/*
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receiver-esp.cpp
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Copyright (c) 2020 Kevin Matz (kevin.matz@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "sacn-receiver.h"
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// ESP logging module
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#include <Arduino.h>
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#include <esp_log.h>
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static const char* TAG = "EspReceiver";
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namespace SACN {
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EspReceiver::EspReceiver(UUID::uuid cid)
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: Receiver(cid)
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{
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udp.onPacket(std::bind(&EspReceiver::UdpStreamHandler, this,
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std::placeholders::_1));
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}
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void EspReceiver::subscribe(const uint16_t num) {
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if (universe(num)) // already subscribed
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return;
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ESP_LOGI(TAG, "Subscribing to universe # %d", num);
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Receiver::subscribe(num);
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// listen multicast; works for unicast too
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udp.listenMulticast(IPv4MulticastAddress(num),
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ACN_SDT_MULTICAST_PORT);
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}
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void EspReceiver::unsubscribe(const uint16_t num) {
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if (!universe(num)) // not subscribed
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return;
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ESP_LOGI(TAG, "Unubscribing from universe # %d", num);
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Receiver::unsubscribe(num);
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// AsyncUDP has no way to unsubscribe IGMP?
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}
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void EspReceiver::UdpStreamHandler(AsyncUDPPacket udp_packet) {
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// Expecting IANA registered Session Data Transport traffic
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if (!udp_packet.localPort() == ACN_SDT_MULTICAST_PORT)
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return;
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// wrap a PDU io stream around the AsyncUDPPacket data buffer
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PDU::Stream stream(new PDU::pdu_stream(udp_packet.data(),
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udp_packet.available()));
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Appliance::UdpStreamHandler(stream);
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}
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} // SACN
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