113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
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* protocoludp.c: IPTV plugin for the Video Disk Recorder
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*
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* See the README file for copyright information and how to reach the author.
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*
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <vdr/device.h>
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#include "common.h"
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#include "config.h"
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#include "protocoludp.h"
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#include "socket.h"
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cIptvProtocolUdp::cIptvProtocolUdp()
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: isIGMPv3(false),
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sourceAddr(strdup("")),
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streamAddr(strdup("")),
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streamPort(0)
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{
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debug("cIptvProtocolUdp::cIptvProtocolUdp()\n");
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}
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cIptvProtocolUdp::~cIptvProtocolUdp()
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{
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debug("cIptvProtocolUdp::~cIptvProtocolUdp()\n");
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// Drop the multicast group and close the socket
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cIptvProtocolUdp::Close();
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// Free allocated memory
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free(streamAddr);
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free(sourceAddr);
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}
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bool cIptvProtocolUdp::Open(void)
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{
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debug("cIptvProtocolUdp::Open(): streamAddr=%s\n", streamAddr);
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OpenSocket(streamPort, streamAddr, sourceAddr, isIGMPv3);
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if (!isempty(streamAddr)) {
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// Join a new multicast group
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JoinMulticast();
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}
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return true;
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}
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bool cIptvProtocolUdp::Close(void)
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{
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debug("cIptvProtocolUdp::Close(): streamAddr=%s\n", streamAddr);
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if (!isempty(streamAddr)) {
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// Drop the multicast group
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OpenSocket(streamPort, streamAddr, sourceAddr, isIGMPv3);
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DropMulticast();
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}
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// Close the socket
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CloseSocket();
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// Do NOT reset stream and source addresses
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//sourceAddr = strcpyrealloc(sourceAddr, "");
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//streamAddr = strcpyrealloc(streamAddr, "");
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//streamPort = 0;
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return true;
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}
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int cIptvProtocolUdp::Read(unsigned char* BufferAddr, unsigned int BufferLen)
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{
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return cIptvUdpSocket::Read(BufferAddr, BufferLen);
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}
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bool cIptvProtocolUdp::Set(const char* Location, const int Parameter, const int Index)
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{
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debug("cIptvProtocolUdp::Set(): Location=%s Parameter=%d Index=%d\n", Location, Parameter, Index);
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if (!isempty(Location)) {
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// Drop the multicast group
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if (!isempty(streamAddr)) {
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OpenSocket(streamPort, streamAddr, sourceAddr, isIGMPv3);
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DropMulticast();
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}
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// Update stream address and port
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streamAddr = strcpyrealloc(streamAddr, Location);
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// <group address> or <source address>@<group address>
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char *p = strstr(streamAddr, "@");
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if (p) {
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*p = 0;
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sourceAddr = strcpyrealloc(sourceAddr, streamAddr);
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streamAddr = strcpyrealloc(streamAddr, p + 1);
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isIGMPv3 = true;
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}
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else {
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sourceAddr = strcpyrealloc(sourceAddr, streamAddr);
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isIGMPv3 = false;
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}
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streamPort = Parameter;
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// Join a new multicast group
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if (!isempty(streamAddr)) {
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OpenSocket(streamPort, streamAddr, sourceAddr, isIGMPv3);
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JoinMulticast();
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}
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}
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return true;
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}
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cString cIptvProtocolUdp::GetInformation(void)
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{
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//debug("cIptvProtocolUdp::GetInformation()");
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if (isIGMPv3)
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return cString::sprintf("udp://%s@%s:%d", sourceAddr, streamAddr, streamPort);
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return cString::sprintf("udp://%s:%d", streamAddr, streamPort);
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}
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