Stop using fprintf in input information

5 files changed, 25 insertions, 27 deletions

diff --git a/src/DabMod.cpp b/src/DabMod.cpp
index e68202e..1266147 100644
--- a/src/DabMod.cpp
+++ b/src/DabMod.cpp
@@ -413,7 +413,7 @@ int launch_modulator(int argc, char* argv[])
                 flowgraph.connect(modulator, output);
             }
 
-            inputReader->PrintInfo();
+            etiLog.level(info) << inputReader->GetPrintableInfo();
 
             run_modulator_state_t st = run_modulator(m);
             etiLog.log(trace, "DABMOD,run_modulator() = %d", st);
diff --git a/src/InputFileReader.cpp b/src/InputFileReader.cpp
index 5d4d113..5a9780b 100644
--- a/src/InputFileReader.cpp
+++ b/src/InputFileReader.cpp
@@ -190,31 +190,31 @@ int InputFileReader::IdentifyType()
     return -1;
 }
 
-void InputFileReader::PrintInfo() const
+std::string InputFileReader::GetPrintableInfo() const
 {
-    fprintf(stderr, "Input file format: ");
+    std::string info = "Input file format: ";
     switch (streamtype_) {
         case EtiStreamType::Raw:
-            fprintf(stderr, "raw");
+            info += "raw";
             break;
         case EtiStreamType::Streamed:
-            fprintf(stderr, "streamed");
+            info += "streamed";
             break;
         case EtiStreamType::Framed:
-            fprintf(stderr, "framed");
+            info += "framed";
             break;
         default:
-            fprintf(stderr, "unknown!");
+            info += "unknown!";
             break;
     }
-    fprintf(stderr, "\n");
-    fprintf(stderr, "Input file length: %zu\n", inputfilelength_);
+    info += ", length: " + std::to_string(inputfilelength_);
     if (~nbframes_ != 0) {
-        fprintf(stderr, "Input file nb frames: %lu\n", nbframes_);
+        info += ", nb frames: " + std::to_string(nbframes_);
     }
     else {
-        fprintf(stderr, "Input file nb frames: endless\n");
+        info += ", nb frames: endless";
     }
+    return info;
 }
 
 int InputFileReader::GetNextFrame(void* buffer)
diff --git a/src/InputReader.h b/src/InputReader.h
index 4ffa2b8..85bf38b 100644
--- a/src/InputReader.h
+++ b/src/InputReader.h
@@ -33,15 +33,16 @@
 
 #include <cstdio>
 #include <vector>
+#include <string>
 #include <atomic>
 #include <memory>
+#include <unistd.h>
 #if defined(HAVE_ZEROMQ)
 #  include "zmq.hpp"
 #  include "ThreadsafeQueue.h"
 #endif
 #include "Log.h"
 #include "Socket.h"
-#include <unistd.h>
 #define INVALID_SOCKET   -1
 
 class InputReader
@@ -52,8 +53,8 @@ class InputReader
         // returns number of bytes written to buffer, 0 on eof, -1 on error
         virtual int GetNextFrame(void* buffer) = 0;
 
-        // Print some information
-        virtual void PrintInfo() const = 0;
+        // Get some information
+        virtual std::string GetPrintableInfo() const = 0;
 };
 
 class InputFileReader : public InputReader
@@ -68,8 +69,8 @@ class InputFileReader : public InputReader
         int Open(std::string filename, bool loop);
 
         // Print information about the file opened
-        void PrintInfo() const;
-        int GetNextFrame(void* buffer);
+        virtual std::string GetPrintableInfo() const override;
+        virtual int GetNextFrame(void* buffer) override;
 
     private:
         int IdentifyType();
@@ -136,10 +137,9 @@ class InputTcpReader : public InputReader
         // Put next frame into buffer. This function will never write more than
         // 6144 bytes into buffer.
         // returns number of bytes written to buffer, 0 on eof, -1 on error
-        virtual int GetNextFrame(void* buffer);
+        virtual int GetNextFrame(void* buffer) override;
 
-        // Print some information
-        virtual void PrintInfo() const;
+        virtual std::string GetPrintableInfo() const override;
 
     private:
         TCPClient m_tcpclient;
@@ -166,8 +166,8 @@ class InputZeroMQReader : public InputReader
         ~InputZeroMQReader();
 
         int Open(const std::string& uri, size_t max_queued_frames);
-        int GetNextFrame(void* buffer);
-        void PrintInfo() const;
+        virtual int GetNextFrame(void* buffer) override;
+        virtual std::string GetPrintableInfo() const override;
 
     private:
         std::atomic<bool> m_running = ATOMIC_VAR_INIT(false);
diff --git a/src/InputTcpReader.cpp b/src/InputTcpReader.cpp
index e48e258..21f8496 100644
--- a/src/InputTcpReader.cpp
+++ b/src/InputTcpReader.cpp
@@ -83,9 +83,8 @@ int InputTcpReader::GetNextFrame(void* buffer)
     return ret;
 }
 
-void InputTcpReader::PrintInfo() const
+std::string InputTcpReader::GetPrintableInfo() const
 {
-    fprintf(stderr, "Input TCP:\n");
-    fprintf(stderr, "  Receiving from %s\n\n", m_uri.c_str());
+    return "Input TCP: Receiving from " + m_uri;
 }
 
diff --git a/src/InputZeroMQReader.cpp b/src/InputZeroMQReader.cpp
index e1e1c6d..c7dfd84 100644
--- a/src/InputZeroMQReader.cpp
+++ b/src/InputZeroMQReader.cpp
@@ -134,10 +134,9 @@ int InputZeroMQReader::GetNextFrame(void* buffer)
     return framesize;
 }
 
-void InputZeroMQReader::PrintInfo() const
+std::string InputZeroMQReader::GetPrintableInfo() const
 {
-    fprintf(stderr, "Input ZeroMQ:\n");
-    fprintf(stderr, "  Receiving from %s\n\n", m_uri.c_str());
+    return "Input ZeroMQ: Receiving from " + m_uri;
 }
 
 void InputZeroMQReader::RecvProcess()