From b20b932571daff5621f12f760234e998d6e79fab Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Tue, 21 Jan 2014 22:02:21 +0100
Subject: add RemoteControl, make the ZMQ input inherit from it

---
 src/DabMux.cpp                 |  4 ++--
 src/Makefile.am                |  1 +
 src/dabInput.h                 |  1 +
 src/dabInputZmq.cpp            | 33 +++++++++++++++++++++++++++++++++
 src/dabInputZmq.h              | 16 +++++++++++++---
 src/dabOutput/dabOutputUdp.cpp |  3 +--
 6 files changed, 51 insertions(+), 7 deletions(-)

diff --git a/src/DabMux.cpp b/src/DabMux.cpp
index 2e6e1a6..d1198f1 100644
--- a/src/DabMux.cpp
+++ b/src/DabMux.cpp
@@ -74,8 +74,7 @@ typedef DWORD32 uint32_t;
 #   include <sys/times.h>
 #   include <sys/resource.h>
 
-#   include <linux/if_packet.h>
-#   include <linux/netdevice.h>
+#   include <net/if_packet.h>
 #endif
 
 #ifdef _WIN32
@@ -119,6 +118,7 @@ typedef DWORD32 uint32_t;
 #include "ParserConfigfile.h"
 #include "StatsServer.h"
 #include "Log.h"
+#include "RemoteControl.h"
 
 using namespace std;
 
diff --git a/src/Makefile.am b/src/Makefile.am
index 910d5bc..3bcf54e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -71,6 +71,7 @@ crc_dabmux_SOURCES  =DabMux.cpp \
                      bridge.h bridge.c \
                      utils.cpp utils.h \
                      MuxElements.cpp MuxElements.h \
+                     RemoteControl.cpp RemoteControl.h \
                      ParserCmdline.cpp ParserCmdline.h \
                      ParserConfigfile.cpp ParserConfigfile.h \
                      Eti.h Eti.cpp \
diff --git a/src/dabInput.h b/src/dabInput.h
index 56d3fbf..e5c89da 100644
--- a/src/dabInput.h
+++ b/src/dabInput.h
@@ -26,6 +26,7 @@
 #   include "config.h"
 #endif
 #include "Log.h"
+#include "RemoteControl.h"
 #include <string>
 
 extern Logger etiLog;
diff --git a/src/dabInputZmq.cpp b/src/dabInputZmq.cpp
index 9b61033..4a2114a 100644
--- a/src/dabInputZmq.cpp
+++ b/src/dabInputZmq.cpp
@@ -235,5 +235,38 @@ int DabInputZmq::setBitrate(int bitrate)
     return bitrate; // TODO do a nice check here
 }
 
+/********* REMOTE CONTROL ***********/
+
+void DabInputZmq::set_parameter(string parameter, string value)
+{
+    stringstream ss(value);
+    ss.exceptions ( stringstream::failbit | stringstream::badbit );
+
+    if (parameter == "buffer") {
+        throw ParameterError("Parameter 'ntaps' is read-only");
+    }
+    else {
+        stringstream ss;
+        ss << "Parameter '" << parameter <<
+            "' is not exported by controllable " << get_rc_name();
+        throw ParameterError(ss.str());
+    }
+}
+
+string DabInputZmq::get_parameter(string parameter)
+{
+    stringstream ss;
+    if (parameter == "buffer") {
+        ss << INPUT_ZMQ_MAX_BUFFER_SIZE;
+    }
+    else {
+        ss << "Parameter '" << parameter <<
+            "' is not exported by controllable " << get_rc_name();
+        throw ParameterError(ss.str());
+    }
+    return ss.str();
+
+}
+
 #endif
 
diff --git a/src/dabInputZmq.h b/src/dabInputZmq.h
index b012cf6..72bd348 100644
--- a/src/dabInputZmq.h
+++ b/src/dabInputZmq.h
@@ -60,19 +60,29 @@
 #define INPUT_ZMQ_MAX_BUFFER_SIZE (5*8) // 960ms
 
 
-class DabInputZmq : public DabInputBase {
+class DabInputZmq : public DabInputBase, public RemoteControllable {
     public:
         DabInputZmq(const std::string name)
-            : m_name(name), m_zmq_context(1),
+            : RemoteControllable(name),
+            m_name(name), m_zmq_context(1),
             m_zmq_sock(m_zmq_context, ZMQ_SUB),
             m_prebuffering(INPUT_ZMQ_PREBUFFERING),
-            m_bitrate(0) {}
+            m_bitrate(0) {
+                RC_ADD_PARAMETER(buffer,
+                        "Size of the input buffer [aac superframes]");
+            }
 
         virtual int open(const std::string inputUri);
         virtual int readFrame(void* buffer, int size);
         virtual int setBitrate(int bitrate);
         virtual int close();
 
+        /* Remote control */
+        virtual void set_parameter(string parameter, string value);
+
+        /* Getting a parameter always returns a string. */
+        virtual string get_parameter(string parameter);
+
     private:
         int readFromSocket(int framesize);
 
diff --git a/src/dabOutput/dabOutputUdp.cpp b/src/dabOutput/dabOutputUdp.cpp
index 459120f..607fe71 100644
--- a/src/dabOutput/dabOutputUdp.cpp
+++ b/src/dabOutput/dabOutputUdp.cpp
@@ -38,8 +38,7 @@
 #   include <sys/types.h>
 #   include <sys/socket.h>
 #   include <sys/ioctl.h>
-#   include <linux/if_packet.h>
-#   include <linux/netdevice.h>
+#   include <net/if_packet.h>
 #   include <net/if_arp.h>
 #endif
 
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