Protocol refactoring.

Makefile

@@ -1,7 +1,7 @@
 #
 # Makefile for a Video Disk Recorder plugin
 #
-# $Id: Makefile,v 1.1 2007/09/12 17:28:59 rahrenbe Exp $
+# $Id: Makefile,v 1.2 2007/09/14 15:44:25 rahrenbe Exp $
 
 # Debugging on/off 
 IPTV_DEBUG = 1
@@ -57,7 +57,7 @@ endif
 
 ### The object files (add further files here):
 
-OBJS = $(PLUGIN).o device.o streamer.o
+OBJS = $(PLUGIN).o device.o streamer.o protocoludp.o
 
 ### The main target:
 

device.c

@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: device.c,v 1.6 2007/09/13 18:14:41 rahrenbe Exp $
+ * $Id: device.c,v 1.7 2007/09/14 15:44:25 rahrenbe Exp $
  */
 
 #include "common.h"
@@ -19,19 +19,23 @@ cIptvDevice::cIptvDevice(unsigned int Index)
 : deviceIndex(Index),
   isPacketDelivered(false),
   isOpenDvr(false),
-  pIptvStreamer(NULL)
+  mutex()
 {
   debug("cIptvDevice::cIptvDevice(%d)\n", deviceIndex);
   tsBuffer = new cRingBufferLinear(MEGABYTE(8), TS_SIZE, false, "IPTV");
   tsBuffer->SetTimeouts(100, 100);
+  pUdpProtocol = new cIptvProtocolUdp();
+  //pRtspProtocol = new cIptvProtocolRtsp();
+  //pHttpProtocol = new cIptvProtocolHttp();
   pIptvStreamer = new cIptvStreamer(tsBuffer, &mutex);
+  StartSectionHandler();
 }
 
 cIptvDevice::~cIptvDevice()
 {
   debug("cIptvDevice::~cIptvDevice(%d)\n", deviceIndex);
-  if (pIptvStreamer)
-     delete pIptvStreamer;
+  delete pIptvStreamer;
+  delete pUdpProtocol;
   delete tsBuffer;
 }
 
@@ -64,21 +68,21 @@ cIptvDevice *cIptvDevice::Get(unsigned int DeviceIndex)
   return NULL;
 }
 
-cString cIptvDevice::GetChannelSettings(const char *Param, int *IpPort, int *Protocol)
+cString cIptvDevice::GetChannelSettings(const char *Param, int *IpPort, cIptvProtocolIf* *Protocol)
 {
   unsigned int a, b, c, d;
 
   debug("cIptvDevice::GetChannelSettings(%d)\n", deviceIndex);
   if (sscanf(Param, "IPTV-UDP-%u.%u.%u.%u-%u", &a, &b, &c, &d, IpPort) == 5) {
-     *Protocol = PROTOCOL_UDP;
+     *Protocol = pUdpProtocol;
      return cString::sprintf("%u.%u.%u.%u", a, b, c, d);
      }
   else if (sscanf(Param, "IPTV-RTSP-%u.%u.%u.%u-%u", &a, &b, &c, &d, IpPort) == 5) {
-     *Protocol = PROTOCOL_RTSP;
+     *Protocol = NULL; // pRtspProtocol;
      return cString::sprintf("%u.%u.%u.%u", a, b, c, d);
      }
   else if (sscanf(Param, "IPTV-HTTP-%u.%u.%u.%u-%u", &a, &b, &c, &d, IpPort) == 5) {
-     *Protocol = PROTOCOL_HTTP;
+     *Protocol = NULL; // pHttpProtocol;
      return cString::sprintf("%u.%u.%u.%u", a, b, c, d);
      }
   return NULL;
@@ -117,13 +121,14 @@ bool cIptvDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *N
 
 bool cIptvDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
 {
-  int port, protocol;
+  int port;
   cString addr;
+  cIptvProtocolIf *protocol;
 
   debug("cIptvDevice::SetChannelDevice(%d)\n", deviceIndex);
   addr = GetChannelSettings(Channel->Param(), &port, &protocol);
   if (addr)
-     pIptvStreamer->SetStream(addr, port, (protocol == PROTOCOL_UDP) ? "udp" : (protocol == PROTOCOL_RTSP) ? "rtsp" : "http");
+     pIptvStreamer->Set(addr, port, protocol);
   return true;
 }
 
@@ -140,7 +145,7 @@ bool cIptvDevice::OpenDvr(void)
   isPacketDelivered = false;
   tsBuffer->Clear();
   mutex.Unlock();
-  pIptvStreamer->OpenStream();
+  pIptvStreamer->Open();
   isOpenDvr = true;
   return true;
 }
@@ -148,7 +153,7 @@ bool cIptvDevice::OpenDvr(void)
 void cIptvDevice::CloseDvr(void)
 {
   debug("cIptvDevice::CloseDvr(%d)\n", deviceIndex);
-  pIptvStreamer->CloseStream();
+  pIptvStreamer->Close();
   isOpenDvr = false;
 }
 

device.h

@@ -3,13 +3,16 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: device.h,v 1.3 2007/09/13 18:14:41 rahrenbe Exp $
+ * $Id: device.h,v 1.4 2007/09/14 15:44:25 rahrenbe Exp $
  */
 
 #ifndef __IPTV_DEVICE_H
 #define __IPTV_DEVICE_H
 
 #include <vdr/device.h>
+#include "protocoludp.h"
+//#include "protocolrtsp.h"
+//#include "protocolhttp.h"
 #include "streamer.h"
 
 class cIptvDevice : public cDevice {
@@ -22,15 +25,13 @@ public:
 
   // private parts
 private:
-  enum tProtocol {
-     PROTOCOL_UDP,
-     PROTOCOL_RTSP,
-     PROTOCOL_HTTP
-  };
   unsigned int deviceIndex;
   bool isPacketDelivered;
   bool isOpenDvr;
   cRingBufferLinear *tsBuffer;
+  cIptvProtocolUdp *pUdpProtocol;
+  //cIptvProtocolRtsp *pRtspProtocol;
+  //cIptvProtocolHttp *pHttpProtocol;
   cIptvStreamer *pIptvStreamer;
   cMutex mutex;
 
@@ -41,7 +42,7 @@ public:
 
   // for channel parsing
 private:
-  cString GetChannelSettings(const char *Param, int *IpPort, int *Protocol);
+  cString GetChannelSettings(const char *Param, int *IpPort, cIptvProtocolIf* *Protocol);
   bool ProvidesIptv(const char *Param) const;
 
   // for channel selection

protocolif.h

@@ -0,0 +1,26 @@
+/*
+ * protocolif.h: IPTV plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id: protocolif.h,v 1.1 2007/09/14 15:44:25 rahrenbe Exp $
+ */
+
+#ifndef __IPTV_PROTOCOLIF_H
+#define __IPTV_PROTOCOLIF_H
+
+class cIptvProtocolIf {
+public:
+  cIptvProtocolIf() {}
+  virtual ~cIptvProtocolIf() {}
+  virtual int Read(unsigned char *Buffer, int Len) = 0;
+  virtual bool Set(const char* Address, const int Port) = 0;
+  virtual bool Open(void) = 0;
+  virtual bool Close(void) = 0;
+
+private:
+    cIptvProtocolIf(const cIptvProtocolIf&);
+    cIptvProtocolIf& operator=(const cIptvProtocolIf&);
+};
+
+#endif // __IPTV_PROTOCOLIF_H

protocoludp.c

@@ -0,0 +1,206 @@
+/*
+ * streamer.c: IPTV plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id: protocoludp.c,v 1.1 2007/09/14 15:44:25 rahrenbe Exp $
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "protocoludp.h"
+
+cIptvProtocolUdp::cIptvProtocolUdp()
+: streamPort(1234),
+  socketDesc(-1),
+  mcastActive(false)
+{
+  debug("cIptvProtocolUdp::cIptvProtocolUdp()\n");
+  streamAddr = strdup("");
+}
+
+cIptvProtocolUdp::~cIptvProtocolUdp()
+{
+  debug("cIptvProtocolUdp::~cIptvProtocolUdp()\n");
+  // Drop the multicast group and close the socket
+  Close();
+  // Free allocated memory
+  free(streamAddr);
+}
+
+bool cIptvProtocolUdp::OpenSocket(const int Port)
+{
+  debug("cIptvProtocolUdp::OpenSocket()\n");
+  // If socket is there already and it is bound to a different port, it must
+  // be closed first
+  if (Port != streamPort) {
+     debug("cIptvProtocolUdp::OpenSocket(): Socket tear-down\n");
+     CloseSocket();
+     }
+  // Bind to the socket if it is not active already
+  if (socketDesc < 0) {
+     int yes = 1;     
+     // Create socket
+     socketDesc = socket(PF_INET, SOCK_DGRAM, 0);
+     if (socketDesc < 0) {
+        char tmp[64];
+        error("ERROR: socket(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+        return false;
+        }
+     // Make it use non-blocking I/O to avoid stuck read calls
+     if (fcntl(socketDesc, F_SETFL, O_NONBLOCK)) {
+        char tmp[64];
+        error("ERROR: fcntl(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+        CloseSocket();
+        return false;
+        }
+     // Allow multiple sockets to use the same PORT number
+     if (setsockopt(socketDesc, SOL_SOCKET, SO_REUSEADDR, &yes,
+		    sizeof(yes)) < 0) {
+        char tmp[64];
+        error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+        CloseSocket();
+        return false;
+        }
+     // Bind socket
+     memset(&sockAddr, '\0', sizeof(sockAddr));
+     sockAddr.sin_family = AF_INET;
+     sockAddr.sin_port = htons(Port);
+     sockAddr.sin_addr.s_addr = htonl(INADDR_ANY);
+     int err = bind(socketDesc, (struct sockaddr *)&sockAddr, sizeof(sockAddr));
+     if (err < 0) {
+        char tmp[64];
+        error("ERROR: bind(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+        CloseSocket();
+        return false;
+        }
+     // Update stream port
+     streamPort = Port;
+     }
+  return true;
+}
+
+void cIptvProtocolUdp::CloseSocket(void)
+{
+  debug("cIptvProtocolUdp::CloseSocket()\n");
+  // Check if socket exists
+  if (socketDesc >= 0) {
+     close(socketDesc);
+     socketDesc = -1;
+     }
+}
+
+bool cIptvProtocolUdp::JoinMulticast(void)
+{
+  debug("cIptvProtocolUdp::JoinMulticast()\n");
+  // Check that stream address is valid
+  if (!mcastActive && !isempty(streamAddr)) {
+     // Ensure that socket is valid
+     OpenSocket(streamPort);
+     // Join a new multicast group
+     struct ip_mreq mreq;
+     mreq.imr_multiaddr.s_addr = inet_addr(streamAddr);
+     mreq.imr_interface.s_addr = htonl(INADDR_ANY);
+     int err = setsockopt(socketDesc, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
+                          sizeof(mreq));
+     if (err < 0) {
+        char tmp[64];
+        error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+        return false;
+        }
+     // Update multicasting flag
+     mcastActive = true;
+     }
+  return true;
+}
+
+bool cIptvProtocolUdp::DropMulticast(void)
+{
+  debug("cIptvProtocolUdp::DropMulticast()\n");
+  // Check that stream address is valid
+  if (mcastActive && !isempty(streamAddr)) {
+      // Ensure that socket is valid
+      OpenSocket(streamPort);
+      // Drop the multicast group
+      struct ip_mreq mreq;
+      mreq.imr_multiaddr.s_addr = inet_addr(streamAddr);
+      mreq.imr_interface.s_addr = htonl(INADDR_ANY);
+      int err = setsockopt(socketDesc, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mreq,
+                           sizeof(mreq));
+      if (err < 0) {
+         char tmp[64];
+         error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+         return false;
+         }
+      // Update multicasting flag
+      mcastActive = false;
+     }
+  return true;
+}
+
+int cIptvProtocolUdp::Read(unsigned char *Buffer, int Len)
+{
+  //debug("cIptvProtocolUdp::Read()\n");
+  socklen_t addrlen = sizeof(sockAddr);
+  // Wait for data
+  struct timeval tv;
+  tv.tv_sec = 0;
+  tv.tv_usec = 500000;
+  // Use select
+  fd_set rfds;
+  FD_ZERO(&rfds);
+  FD_SET(socketDesc, &rfds);
+  int retval = select(socketDesc + 1, &rfds, NULL, NULL, &tv);
+  // Check if error
+  if (retval < 0) {
+     char tmp[64];
+     error("ERROR: select(): %s", strerror_r(errno, tmp, sizeof(tmp)));
+     return -1;
+     }
+  // Check if data available
+  else if (retval) {
+     // Read data from socket
+     return recvfrom(socketDesc, Buffer, Len, MSG_DONTWAIT,
+                     (struct sockaddr *)&sockAddr, &addrlen);
+     }
+  return 0;
+}
+
+bool cIptvProtocolUdp::Open(void)
+{
+  debug("cIptvProtocolUdp::Open(): streamAddr = %s\n", streamAddr);
+  // Join a new multicast group
+  JoinMulticast();
+  return true;
+}
+
+bool cIptvProtocolUdp::Close(void)
+{
+  debug("cIptvProtocolUdp::Close(): streamAddr = %s\n", streamAddr);
+  // Drop the multicast group
+  DropMulticast();
+  // Close the socket
+  CloseSocket();
+  return true;
+}
+
+bool cIptvProtocolUdp::Set(const char* Address, const int Port)
+{
+  debug("cIptvProtocolUdp::Set(): %s:%d\n", Address, Port);
+  if (!isempty(Address)) {
+    // Drop the multicast group
+    DropMulticast();
+    // Update stream address and port
+    streamAddr = strcpyrealloc(streamAddr, Address);
+    streamPort = Port;
+    // Join a new multicast group
+    JoinMulticast();
+    }
+  return true;
+}
+

protocoludp.h

@@ -0,0 +1,39 @@
+/*
+ * protocoludp.h: IPTV plugin for the Video Disk Recorder
+ *
+ * See the README file for copyright information and how to reach the author.
+ *
+ * $Id: protocoludp.h,v 1.1 2007/09/14 15:44:25 rahrenbe Exp $
+ */
+
+#ifndef __IPTV_PROTOCOLUDP_H
+#define __IPTV_PROTOCOLUDP_H
+
+#include <arpa/inet.h>
+#include "protocolif.h"
+
+class cIptvProtocolUdp : public cIptvProtocolIf {
+private:
+  char* streamAddr;
+  int streamPort;
+  int socketDesc;
+  struct sockaddr_in sockAddr;
+  bool mcastActive;
+
+private:
+  bool OpenSocket(const int Port);
+  void CloseSocket(void);
+  bool JoinMulticast(void);
+  bool DropMulticast(void);
+
+public:
+  cIptvProtocolUdp();
+  virtual ~cIptvProtocolUdp();
+  virtual int Read(unsigned char *Buffer, int Len);
+  virtual bool Set(const char* Address, const int Port);
+  virtual bool Open(void);
+  virtual bool Close(void);
+};
+
+#endif // __IPTV_PROTOCOLUDP_H
+

streamer.c

@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: streamer.c,v 1.10 2007/09/13 16:58:22 rahrenbe Exp $
+ * $Id: streamer.c,v 1.11 2007/09/14 15:44:25 rahrenbe Exp $
  */
 
 #include <sys/types.h>
@@ -19,68 +19,45 @@
 #include "common.h"
 #include "streamer.h"
 
-cIptvStreamer::cIptvStreamer(cRingBufferLinear* Buffer, cMutex* Mutex)
+cIptvStreamer::cIptvStreamer(cRingBufferLinear* RingBuffer, cMutex* Mutex)
 : cThread("IPTV streamer"),
-  streamPort(1234),
-  socketDesc(-1),
-  pRingBuffer(Buffer),
-  bufferSize(TS_SIZE * 7),
+  ringBuffer(RingBuffer),
   mutex(Mutex),
-  mcastActive(false)
+  readBufferLen(TS_SIZE * 7),
+  protocol(NULL)
 {
   debug("cIptvStreamer::cIptvStreamer()\n");
-  streamAddr = strdup("");
-  // Create the socket
-  OpenSocket(streamPort);
   // Allocate receive buffer
-  pReceiveBuffer = MALLOC(unsigned char, bufferSize);
-  if (!pReceiveBuffer)
-     error("ERROR: MALLOC(pReceiveBuffer) failed");
+  readBuffer = MALLOC(unsigned char, readBufferLen);
+  if (!readBuffer)
+     error("ERROR: MALLOC(readBuffer) failed");
 }
 
 cIptvStreamer::~cIptvStreamer()
 {
   debug("cIptvStreamer::~cIptvStreamer()\n");
-  // Drop the multicast group
-  DropMulticast();
-  // Close the stream and socket
-  CloseStream();
-  CloseSocket();
+  // Close the protocol
+  Close();
   // Free allocated memory
-  free(streamAddr);
-  free(pReceiveBuffer);
+  free(readBuffer);
 }
 
 void cIptvStreamer::Action(void)
 {
   debug("cIptvStreamer::Action(): Entering\n");
-  // Create files necessary for selecting I/O from socket
-  fd_set rfds;
-  FD_ZERO(&rfds);
-  FD_SET(socketDesc, &rfds);
   // Do the thread loop
   while (Running()) {
-    if (pRingBuffer && mutex && pReceiveBuffer && (socketDesc >= 0)) {
-       struct timeval tv;
-       socklen_t addrlen = sizeof(sockAddr);
-       // Wait for data
-       tv.tv_sec = 0;
-       tv.tv_usec = 500000;
-       int retval = select(socketDesc + 1, &rfds, NULL, NULL, &tv);
-       if (retval < 0) {
-          char tmp[64];
-          error("ERROR: select(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-       } else if (retval) {
-          // Read data from socket
-          int length = recvfrom(socketDesc, pReceiveBuffer, bufferSize, MSG_DONTWAIT,
-                                (struct sockaddr *)&sockAddr, &addrlen);
+    if (ringBuffer && mutex && readBuffer && protocol) {
+       int length = protocol->Read(readBuffer, readBufferLen);
+       if (length >= 0) {
           mutex->Lock();
-          int p = pRingBuffer->Put(pReceiveBuffer, length);
+          int p = ringBuffer->Put(readBuffer, length);
           if (p != length && Running())
-             pRingBuffer->ReportOverflow(length - p);
+             ringBuffer->ReportOverflow(length - p);
           mutex->Unlock();
-       } else
-          debug("cIptvStreamer::Action(): Timeout\n");
+          }
+       else
+          cCondWait::SleepMs(3); // reduce cpu load
        }
     else
        cCondWait::SleepMs(100); // avoid busy loop
@@ -88,148 +65,44 @@ void cIptvStreamer::Action(void)
   debug("cIptvStreamer::Action(): Exiting\n");
 }
 
-bool cIptvStreamer::OpenSocket(const int port)
+bool cIptvStreamer::Open(void)
 {
-  debug("cIptvStreamer::OpenSocket()\n");
-  // If socket is there already and it is bound to a different port, it must
-  // be closed first
-  if (port != streamPort) {
-     debug("cIptvStreamer::OpenSocket(): Socket tear-down\n");
-     CloseSocket();
-     }
-  // Bind to the socket if it is not active already
-  if (socketDesc < 0) {
-     int yes = 1;     
-     // Create socket
-     socketDesc = socket(PF_INET, SOCK_DGRAM, 0);
-     if (socketDesc < 0) {
-        char tmp[64];
-        error("ERROR: socket(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-        return false;
-        }
-     // Make it use non-blocking I/O to avoid stuck read calls
-     if (fcntl(socketDesc, F_SETFL, O_NONBLOCK)) {
-        char tmp[64];
-        error("ERROR: fcntl(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-        CloseSocket();
-        return false;
-        }
-     // Allow multiple sockets to use the same PORT number
-     if (setsockopt(socketDesc, SOL_SOCKET, SO_REUSEADDR, &yes,
-		    sizeof(yes)) < 0) {
-        char tmp[64];
-        error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-        CloseSocket();
-        return false;
-        }
-     // Bind socket
-     memset(&sockAddr, '\0', sizeof(sockAddr));
-     sockAddr.sin_family = AF_INET;
-     sockAddr.sin_port = htons(port);
-     sockAddr.sin_addr.s_addr = htonl(INADDR_ANY);
-     int err = bind(socketDesc, (struct sockaddr *)&sockAddr, sizeof(sockAddr));
-     if (err < 0) {
-        char tmp[64];
-        error("ERROR: bind(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-        CloseSocket();
-        return false;
-        }
-     // Update stream port
-     streamPort = port;
-     }
-  return true;
-}
-
-void cIptvStreamer::CloseSocket(void)
-{
-  debug("cIptvStreamer::CloseSocket()\n");
-  // Check if socket exists
-  if (socketDesc >= 0) {
-     close(socketDesc);
-     socketDesc = -1;
-     }
-}
-
-bool cIptvStreamer::JoinMulticast(void)
-{
-  debug("cIptvStreamer::JoinMulticast()\n");
-  // Check that stream address is valid
-  if (!mcastActive && !isempty(streamAddr)) {
-     // Ensure that socket is valid
-     OpenSocket(streamPort);
-     // Join a new multicast group
-     struct ip_mreq mreq;
-     mreq.imr_multiaddr.s_addr = inet_addr(streamAddr);
-     mreq.imr_interface.s_addr = htonl(INADDR_ANY);
-     int err = setsockopt(socketDesc, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
-                          sizeof(mreq));
-     if (err < 0) {
-        char tmp[64];
-        error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-        return false;
-        }
-     // Update multicasting flag
-     mcastActive = true;
-     }
-  return true;
-}
-
-bool cIptvStreamer::DropMulticast(void)
-{
-  debug("cIptvStreamer::DropMulticast()\n");
-  // Check that stream address is valid
-  if (mcastActive && !isempty(streamAddr)) {
-      // Ensure that socket is valid
-      OpenSocket(streamPort);
-      // Drop the multicast group
-      struct ip_mreq mreq;
-      mreq.imr_multiaddr.s_addr = inet_addr(streamAddr);
-      mreq.imr_interface.s_addr = htonl(INADDR_ANY);
-      int err = setsockopt(socketDesc, IPPROTO_IP, IP_DROP_MEMBERSHIP, &mreq,
-                           sizeof(mreq));
-      if (err < 0) {
-         char tmp[64];
-         error("ERROR: setsockopt(): %s", strerror_r(errno, tmp, sizeof(tmp)));
-         return false;
-         }
-      // Update multicasting flag
-      mcastActive = false;
-     }
-  return true;
-}
-
-bool cIptvStreamer::OpenStream(void)
-{
-  debug("cIptvStreamer::OpenStream(): streamAddr = %s\n", streamAddr);
-  // Join a new multicast group
-  JoinMulticast();
+  debug("cIptvStreamer::Open()\n");
+  // Open the protocol
+  if (protocol)
+     protocol->Open();
   // Start thread
   Start();
   return true;
 }
 
-bool cIptvStreamer::CloseStream(void)
+bool cIptvStreamer::Close(void)
 {
-  debug("cIptvStreamer::CloseStream(): streamAddr = %s\n", streamAddr);
+  debug("cIptvStreamer::Close()\n");
   // Stop thread
   if (Running())
      Cancel(3);
-  // Drop the multicast group
-  DropMulticast();
+  // Close the protocol
+  if (protocol)
+     protocol->Close();
   return true;
 }
 
-bool cIptvStreamer::SetStream(const char* address, const int port, const char* protocol)
+bool cIptvStreamer::Set(const char* Address, const int Port, cIptvProtocolIf* Protocol)
 {
-  debug("cIptvStreamer::SetStream(): %s://%s:%d\n", protocol, address, port);
-  if (!isempty(address)) {
-    // Drop the multicast group
-    DropMulticast();
-    // Update stream address and port
-    streamAddr = strcpyrealloc(streamAddr, address);
-    streamPort = port;
-    // Join a new multicast group
-    JoinMulticast();
+  debug("cIptvStreamer::Set(): %s:%d\n", Address, Port);
+  if (!isempty(Address)) {
+    // Update protocol; Close the existing one if changed
+    if (protocol != Protocol) {
+       if (protocol)
+          protocol->Close();
+       protocol = Protocol;
+       if (protocol)
+          protocol->Open();
+       }
+    // Set protocol address and port
+    if (protocol)
+        protocol->Set(Address, Port);
     }
   return true;
 }

streamer.h

@@ -3,7 +3,7 @@
  *
  * See the README file for copyright information and how to reach the author.
  *
- * $Id: streamer.h,v 1.5 2007/09/13 16:58:22 rahrenbe Exp $
+ * $Id: streamer.h,v 1.6 2007/09/14 15:44:25 rahrenbe Exp $
  */
 
 #ifndef __IPTV_STREAMER_H
@@ -14,32 +14,23 @@
 #include <vdr/thread.h>
 #include <vdr/ringbuffer.h>
 
+#include "protocolif.h"
+
 class cIptvStreamer : public cThread {
 private:
-  char* streamAddr;
-  int streamPort;
-  int socketDesc;
-  struct sockaddr_in sockAddr;
-  cRingBufferLinear* pRingBuffer;
-  unsigned char* pReceiveBuffer;
-  unsigned int bufferSize;
+  cRingBufferLinear* ringBuffer;
   cMutex* mutex;
-  bool mcastActive;
-
-private:
-  bool OpenSocket(const int port);
-  void CloseSocket(void);
-  bool JoinMulticast(void);
-  bool DropMulticast(void);
+  unsigned char* readBuffer;
+  unsigned int readBufferLen;
+  cIptvProtocolIf* protocol;
 
 public:
-  cIptvStreamer();
-  cIptvStreamer(cRingBufferLinear* Buffer, cMutex* Mutex);
+  cIptvStreamer(cRingBufferLinear* RingBuffer, cMutex* Mutex);
   virtual ~cIptvStreamer();
   virtual void Action(void);
-  bool SetStream(const char* address, const int port, const char* protocol);
-  bool OpenStream(void);
-  bool CloseStream(void);
+  bool Set(const char* Address, const int Port, cIptvProtocolIf* Protocol);
+  bool Open(void);
+  bool Close(void);
 };
 
 #endif // __IPTV_STREAMER_H