added multicast reception in the udp effect (#675)

* Removed -HUP so the default -TERM signal is sent instead.
- hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config

Changed pgrep to add '-x' so it wont partial match on the exe name.
- I have multiple instances with multiple hyperiond-instance1 names
- this ensures the service script only kills the right process

* reversing errant change to hyperion.systemd.sh

* cleaned up a couple of compiler warnings

* moved bitpair_to_byte initialiser to (hopefully) work with older GCC

* compiler warning in udp driver
removed some tabs in ws2812b.cpp

* formatting - spaces to tabs

* moved rpi_281x to tag sk6812-v1.0

* moving to my fork of rpi_281x

* removed dos line endings

* Found some more "dos" line ending files

* Added multicast support to the udp listener "effect"

* the default udp.json will listen to unicast on port 2391 (as it used to)

the new udp-mcast.json will listen on multicast 239.255.28.01:2801
This commit is contained in:
penfold42 2016-06-05 03:27:47 +10:00 committed by brindosch
parent 56e3e0d101
commit 5c76fabd3d
3 changed files with 37 additions and 12 deletions

9
effects/udp-mcast.json Normal file
View File

@ -0,0 +1,9 @@
{
"name" : "UDP multicast listener",
"script" : "udp.py",
"args" :
{
"ListenPort" : 2801,
"ListenIP" : "239.255.28.01"
}
}

View File

@ -1,8 +1,8 @@
{
"name" : "UDP listener",
"script" : "udp.py",
"args" :
{
"udpPort" : 2391
}
}
{
"name" : "UDP listener",
"script" : "udp.py",
"args" :
{
"ListenPort" : 2391
}
}

View File

@ -3,17 +3,33 @@ import time
import colorsys
import socket
import errno
import struct
# Get the parameters
udpPort = int(hyperion.args.get('udpPort', 2812))
ListenPort = int(hyperion.args.get('ListenPort', 2801))
ListenIP = hyperion.args.get('ListenIP', "")
octets = ListenIP.split('.');
UDPSock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
UDPSock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM, socket.IPPROTO_UDP)
UDPSock.setblocking(False)
listen_addr = ("",udpPort)
print "udp.py: bind socket port:",udpPort
listen_addr = (ListenIP,ListenPort)
UDPSock.bind(listen_addr)
if ListenIP == "":
print "udp.py: Listening on *.*.*.*:"+str(ListenPort)
else:
print "udp.py: Listening on "+ListenIP+":"+str(ListenPort)
if len(octets) == 4 and int(octets[0]) >= 224 and int(octets[0]) < 240:
print "ListenIP is a multicast address\n"
# Multicast handling
try:
mreq = struct.pack("4sl", socket.inet_aton(ListenIP), socket.INADDR_ANY)
UDPSock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
except socket.error:
print "ERROR enabling multicast\n"
hyperion.setColor(hyperion.ledCount * bytearray((int(0), int(0), int(0))) )
# Start the write data loop