Make the FM resampler optional.

Author: g4klx

DStarNetwork.cpp

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2009-2014,2016,2019,2020,2021 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2009-2014,2016,2019,2020,2021,2024 by Jonathan Naylor G4KLX
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -164,7 +164,7 @@ bool CDStarNetwork::writePoll(const char* text)
 	buffer[2] = 'R';
 	buffer[3] = 'P';
 
-	buffer[4] = 0x0A;				// Poll with text
+	buffer[4] = 0x0AU;				// Poll with text
 
 	unsigned int length = ::strlen(text);
 
@@ -226,6 +226,7 @@ void CDStarNetwork::clock(unsigned int ms)
 
 	case 0x01U:			// NETWORK_TEMPTEXT;
 	case 0x04U:			// NETWORK_STATUS1..5
+	case 0x0AU:			// POLL
 	case 0x24U:			// NETWORK_DD_DATA
 		return;
 

FMNetwork.cpp

@@ -45,7 +45,9 @@ m_debug(debug),
 m_enabled(false),
 m_buffer(2000U, "FM Network"),
 m_seqNo(0U),
+#if defined(HAS_SRC)
 m_resampler(NULL),
+#endif
 m_error(0),
 m_fp(NULL)
 {
@@ -67,12 +69,16 @@ m_fp(NULL)
 	else
 		m_protocol = FMNP_USRP;
 
+#if defined(HAS_SRC)
 	m_resampler = ::src_new(SRC_SINC_FASTEST, 1, &m_error);
+#endif
 }
 
 CFMNetwork::~CFMNetwork()
 {
+#if defined(HAS_SRC)
 	::src_delete(m_resampler);
+#endif
 }
 
 bool CFMNetwork::open()
@@ -84,18 +90,25 @@ bool CFMNetwork::open()
 
 	LogMessage("Opening FM network connection");
 
-	if (!m_squelchFile.empty()) {
-		m_fp = ::fopen(m_squelchFile.c_str(), "wb");
-		if (m_fp == NULL) {
+	if (m_protocol == FMNP_RAW) {
+		if (!m_squelchFile.empty()) {
+			m_fp = ::fopen(m_squelchFile.c_str(), "wb");
+			if (m_fp == NULL) {
 #if !defined(_WIN32) && !defined(_WIN64)
-			LogError("Cannot open the squelch file: %s, errno=%d", m_squelchFile.c_str(), errno);
+				LogError("Cannot open the squelch file: %s, errno=%d", m_squelchFile.c_str(), errno);
 #else
-			LogError("Cannot open the squelch file: %s, errno=%lu", m_squelchFile.c_str(), ::GetLastError());
+				LogError("Cannot open the squelch file: %s, errno=%lu", m_squelchFile.c_str(), ::GetLastError());
 #endif
-			return false;
+				return false;
+			}
 		}
 	}
 
+	if ((m_protocol == FMNP_RAW) && (m_sampleRate != MMDVM_SAMPLERATE)) {
+		LogError("The resampler needed for non-native sample rates has not been included");
+		return false;
+	}
+
 	return m_socket.open(m_addr);
 }
 
@@ -201,6 +214,7 @@ bool CFMNetwork::writeRawData(const float* in, unsigned int nIn)
 
 	unsigned int length = 0U;
 
+#if defined(HAS_SRC)
 	if (m_sampleRate != MMDVM_SAMPLERATE) {
 		unsigned int nOut = (nIn * m_sampleRate) / MMDVM_SAMPLERATE;
 
@@ -227,13 +241,16 @@ bool CFMNetwork::writeRawData(const float* in, unsigned int nIn)
 			buffer[length++] = (val >> 8) & 0xFFU;
 		}
 	} else {
+#endif
 		for (unsigned int i = 0U; i < nIn; i++) {
 			short val = short(in[i] * 32767.0F + 0.5F);	// Changing audio format from float to S16LE
 
 			buffer[length++] = (val >> 0) & 0xFFU;
 			buffer[length++] = (val >> 8) & 0xFFU;
 		}
+#if defined(HAS_SRC)
 	}
+#endif
 
 	if (m_debug)
 		CUtils::dump(1U, "FM Network Data Sent", buffer, length);
@@ -395,6 +412,7 @@ unsigned int CFMNetwork::readData(float* out, unsigned int nOut)
 	if (bytes == 0U)
 		return 0U;
 
+#if defined(HAS_SRC)
 	if ((m_protocol == FMNP_RAW) && (m_sampleRate != MMDVM_SAMPLERATE)) {
 		unsigned int nIn = (nOut * m_sampleRate) / MMDVM_SAMPLERATE;
 
@@ -427,6 +445,7 @@ unsigned int CFMNetwork::readData(float* out, unsigned int nOut)
 			return false;
 		}
 	} else {
+#endif
 		if (bytes < nOut)
 			nOut = bytes;
 
@@ -437,7 +456,9 @@ unsigned int CFMNetwork::readData(float* out, unsigned int nOut)
 			short val = ((buffer[i * 2U + 0U] & 0xFFU) << 0) + ((buffer[i * 2U + 1U] & 0xFFU) << 8);
 			out[i] = float(val) / 65536.0F;
 		}
+#if defined(HAS_SRC)
 	}
+#endif
 
 	return nOut;
 }

FMNetwork.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2020,2021,2023 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2020,2021,2023,2024 by Jonathan Naylor G4KLX
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -16,13 +16,15 @@
  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#ifndef	FMNetwork_H
+#if !defined(FMNetwork_H)
 #define	FMNetwork_H
 
 #include "RingBuffer.h"
 #include "UDPSocket.h"
 
+#if defined(HAS_SRC)
 #include <samplerate.h>
+#endif
 
 #include <cstdint>
 #include <string>
@@ -65,7 +67,9 @@ class CFMNetwork {
 	bool                m_enabled;
 	CRingBuffer<unsigned char> m_buffer;
 	unsigned int        m_seqNo;
+#if defined(HAS_SRC)
 	SRC_STATE*          m_resampler;
+#endif
 	int                 m_error;
 	FILE*               m_fp;
 

MMDVMHost.vcxproj

@@ -88,13 +88,14 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>HAVE_LOG_H;_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>..\..\libsamplerate-0.1.9\src</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>
+      </AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;libsamplerate-0.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>..\..\libsamplerate\Debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -104,13 +105,14 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>HAVE_LOG_H;_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>..\..\libsamplerate-0.1.9\src</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>
+      </AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;libsamplerate-0.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>..\..\libsamplerate\x64\Debug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
     <PreBuildEvent>
       <Command>"$(ProjectDir)prebuild.cmd" $(ProjectDir)</Command>
@@ -128,15 +130,16 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>HAVE_LOG_H;_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>..\..\libsamplerate-0.1.9\src</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>
+      </AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;libsamplerate-0.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>..\..\libsamplerate\Release;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -148,15 +151,16 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>HAVE_LOG_H;_CRT_SECURE_NO_WARNINGS;WIN32_LEAN_AND_MEAN;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>..\..\libsamplerate-0.1.9\src</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>
+      </AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;libsamplerate-0.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>..\..\libsamplerate\x64\Release;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>

Makefile

@@ -1,9 +1,11 @@
 # This makefile is for all platforms, but doesn't include support for the HD44780, OLED, or PCF8574 displays on the Raspberry Pi.
 
+# If you have the resampler library installed, add -DHAS_SRC to the CFLAGS line, and -lsamplerate to the LIBS line.
+
 CC      = cc
 CXX     = c++
 CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DHAVE_LOG_H -I/usr/local/include
-LIBS    = -lpthread -lutil -lsamplerate
+LIBS    = -lpthread -lutil
 LDFLAGS = -g -L/usr/local/lib
 
 OBJECTS = \

Makefile.Pi.Adafruit

@@ -1,10 +1,12 @@
 # This makefile is for use with the Raspberry Pi when using an HD44780 compatible display. The wiringpi library is needed.
 # Support for the Adafruit i2c 16 x 2 RGB LCD Pi Plate
 
+# If you have the resampler library installed, add -DHAS_SRC to the CFLAGS line, and -lsamplerate to the LIBS line.
+
 CC      = cc
 CXX     = c++
 CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DHAVE_LOG_H -DHD44780 -DADAFRUIT_DISPLAY -I/usr/local/include
-LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil -lsamplerate
+LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil
 LDFLAGS = -g -L/usr/local/lib
 
 OBJECTS = \

Makefile.Pi.HD44780

@@ -1,9 +1,11 @@
 # This makefile is for use with the Raspberry Pi when using an HD44780 compatible display. The wiringpi library is needed.
 
+# If you have the resampler library installed, add -DHAS_SRC to the CFLAGS line, and -lsamplerate to the LIBS line.
+
 CC      = cc
 CXX     = c++
 CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DHAVE_LOG_H -DHD44780 -I/usr/local/include
-LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil -lsamplerate
+LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil
 LDFLAGS = -g -L/usr/local/lib
 
 OBJECTS = \

Makefile.Pi.I2C

@@ -1,9 +1,11 @@
 # This makefile is for use with the Raspberry Pi. The wiringpi library is needed.
 
+# If you have the resampler library installed, add -DHAS_SRC to the CFLAGS line, and -lsamplerate to the LIBS line.
+
 CC      = cc
 CXX     = c++
 CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DHAVE_LOG_H -DRASPBERRY_PI -I/usr/local/include
-LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil -lsamplerate
+LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil
 LDFLAGS = -g -L/usr/local/lib
 
 OBJECTS = \

Makefile.Pi.OLED

@@ -1,9 +1,11 @@
 # This makefile is for use with the Raspberry Pi when using an OLED display. The wiringpi library is not needed.
 
+# If you have the resampler library installed, add -DHAS_SRC to the CFLAGS line, and -lsamplerate to the LIBS line.
+
 CC      = cc
 CXX     = c++
 CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DHAVE_LOG_H -DOLED -I/usr/local/include
-LIBS    = -lArduiPi_OLED -lpthread -lutil -lsamplerate
+LIBS    = -lArduiPi_OLED -lpthread -lutil
 
 # If you use NetBSD, add following CFLAGS
 #CFLAGS += -L/usr/local/lib -Wl,-rpath=/usr/local/lib

Makefile.Pi.PCF8574

@@ -1,10 +1,12 @@
 # This makefile is for use with the Raspberry Pi when using an HD44780 compatible display. The wiringpi library is needed.
 # Support for the HD44780 connected via a PCF8574 8-bit GPIO expander IC
 
+# If you have the resampler library installed, add -DHAS_SRC to the CFLAGS line, and -lsamplerate to the LIBS line.
+
 CC      = cc
 CXX     = c++
 CFLAGS  = -g -O3 -Wall -std=c++0x -pthread -DHAVE_LOG_H -DHD44780 -DPCF8574_DISPLAY -I/usr/local/include
-LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil -lsamplerate
+LIBS    = -lwiringPi -lwiringPiDev -lpthread -lutil
 LDFLAGS = -g -L/usr/local/lib
 
 OBJECTS = \