Fun with portaudio!

git-svn-id: https://svn.code.sf.net/p/freetel/code@467 01035d8c-6547-0410-b346-abe4f91aad63

diff --git a/fdmdv2/pa_test/Debug/portaudio.dll b/fdmdv2/pa_test/Debug/portaudio.dll
new file mode 100644 (file)
index 0000000..9b29286
Binary files /dev/null and b/fdmdv2/pa_test/Debug/portaudio.dll differ

diff --git a/fdmdv2/pa_test/Release/portaudio.dll b/fdmdv2/pa_test/Release/portaudio.dll
new file mode 100644 (file)
index 0000000..9b29286
Binary files /dev/null and b/fdmdv2/pa_test/Release/portaudio.dll differ

diff --git a/fdmdv2/pa_test/pa_class.cpp b/fdmdv2/pa_test/pa_class.cpp
new file mode 100644 (file)
index 0000000..14e70e4
--- /dev/null
+++ b/fdmdv2/pa_test/pa_class.cpp
@@ -0,0 +1,146 @@
+#include <stdio.h>
+#include <math.h>
+#include "portaudio.h"
+
+/*
+** Note that many of the older ISA sound cards on PCs do NOT support
+** full duplex audio (simultaneous record and playback).
+** And some only support full duplex at lower sample rates.
+*/
+#define SAMPLE_RATE         (44100)
+#define PA_SAMPLE_TYPE      paFloat32
+#define FRAMES_PER_BUFFER   (64)
+
+typedef float SAMPLE;
+
+float CubicAmplifier(float input);
+
+static int fuzzCallback(const void *inputBuffer,
+                        void *outputBuffer,
+                        unsigned long framesPerBuffer,
+                        const PaStreamCallbackTimeInfo* timeInfo,
+                        PaStreamCallbackFlags statusFlags,
+                        void *userData);
+
+/* Non-linear amplifier with soft distortion curve. */
+float CubicAmplifier(float input)
+{
+    float output, temp;
+    if(input < 0.0)
+    {
+        temp = input + 1.0f;
+        output = (temp * temp * temp) - 1.0f;
+    }
+    else
+    {
+        temp = input - 1.0f;
+        output = (temp * temp * temp) + 1.0f;
+    }
+    return output;
+}
+
+#define FUZZ(x) CubicAmplifier(CubicAmplifier(CubicAmplifier(CubicAmplifier(x))))
+
+static int gNumNoInputs = 0;
+
+static int fuzzCallback(const void *inputBuffer,
+                        void *outputBuffer,
+                        unsigned long framesPerBuffer,
+                        const PaStreamCallbackTimeInfo* timeInfo,
+                        PaStreamCallbackFlags statusFlags,
+                        void *userData)
+{
+    SAMPLE *out = (SAMPLE*)outputBuffer;
+    const SAMPLE *in = (const SAMPLE*)inputBuffer;
+    unsigned int i;
+    (void) timeInfo;                /* Prevent unused variable warnings. */
+    (void) statusFlags;
+    (void) userData;
+
+    if(inputBuffer == NULL)
+    {
+        for(i = 0; i < framesPerBuffer; i++)
+        {
+            *out++ = 0;  /* left - silent */
+            *out++ = 0;  /* right - silent */
+        }
+        gNumNoInputs += 1;
+    }
+    else
+    {
+        for(i = 0; i < framesPerBuffer; i++)
+        {
+            *out++ = FUZZ(*in++);  /* left - distorted */
+            *out++ = *in++;          /* right - clean */
+        }
+    }
+    return paContinue;
+}
+
+
+#define BUILD_MAIN
+
+#ifdef BUILD_MAIN
+
+int main(void)
+{
+    PaStreamParameters inputParameters, outputParameters;
+    PaStream *stream;
+    PaError err;
+
+    err = Pa_Initialize();
+    if( err != paNoError ) goto error;
+
+    inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
+    if (inputParameters.device == paNoDevice) {
+      fprintf(stderr,"Error: No default input device.\n");
+      goto error;
+    }
+    inputParameters.channelCount = 2;       /* stereo input */
+    inputParameters.sampleFormat = PA_SAMPLE_TYPE;
+    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
+    inputParameters.hostApiSpecificStreamInfo = NULL;
+
+    outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
+    if (outputParameters.device == paNoDevice) {
+      fprintf(stderr,"Error: No default output device.\n");
+      goto error;
+    }
+    outputParameters.channelCount = 2;       /* stereo output */
+    outputParameters.sampleFormat = PA_SAMPLE_TYPE;
+    outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
+    outputParameters.hostApiSpecificStreamInfo = NULL;
+
+    err = Pa_OpenStream(
+              &stream,
+              &inputParameters,
+              &outputParameters,
+              SAMPLE_RATE,
+              FRAMES_PER_BUFFER,
+              0, /* paClipOff, */  /* we won't output out of range samples so don't bother clipping them */
+              fuzzCallback,
+              NULL );
+    if( err != paNoError ) goto error;
+
+    err = Pa_StartStream( stream );
+    if( err != paNoError ) goto error;
+
+    printf("Hit ENTER to stop program.\n");
+    getchar();
+    err = Pa_CloseStream( stream );
+    if( err != paNoError ) goto error;
+
+    printf("Finished. gNumNoInputs = %d\n", gNumNoInputs );
+    Pa_Terminate();
+    return 0;
+
+error:
+    Pa_Terminate();
+    fprintf( stderr, "An error occured while using the portaudio stream\n" );
+    fprintf( stderr, "Error number: %d\n", err );
+    fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
+    return -1;
+    return 0;
+}
+
+#endif

diff --git a/fdmdv2/pa_test/pa_test.mk b/fdmdv2/pa_test/pa_test.mk
new file mode 100644 (file)
index 0000000..d95eb47
--- /dev/null
+++ b/fdmdv2/pa_test/pa_test.mk
@@ -0,0 +1,103 @@
+##\r
+## Auto Generated makefile by CodeLite IDE\r
+## any manual changes will be erased      \r
+##\r
+## Debug\r
+ProjectName            :=pa_test\r
+ConfigurationName      :=Debug\r
+IntermediateDirectory  :=./Debug\r
+OutDir                 := $(IntermediateDirectory)\r
+WorkspacePath          := "C:\Users\wittend\Projects\audio\portaudio_test\paEcho"\r
+ProjectPath            := "C:\Users\wittend\Projects\audio\portaudio_test\paEcho\pa_test"\r
+CurrentFileName        :=\r
+CurrentFilePath        :=\r
+CurrentFileFullPath    :=\r
+User                   :=wittend\r
+Date                   :=5/14/2012\r
+CodeLitePath           :="C:\Program Files\CodeLite"\r
+LinkerName             :=g++\r
+ArchiveTool            :=ar rcus\r
+SharedObjectLinkerName :=g++ -shared -fPIC\r
+ObjectSuffix           :=.o\r
+DependSuffix           :=.o.d\r
+PreprocessSuffix       :=.o.i\r
+DebugSwitch            :=-gstab\r
+IncludeSwitch          :=-I\r
+LibrarySwitch          :=-l\r
+OutputSwitch           :=-o \r
+LibraryPathSwitch      :=-L\r
+PreprocessorSwitch     :=-D\r
+SourceSwitch           :=-c \r
+CompilerName           :=g++\r
+C_CompilerName         :=gcc\r
+OutputFile             :=$(IntermediateDirectory)/$(ProjectName)\r
+Preprocessors          :=\r
+ObjectSwitch           :=-o \r
+ArchiveOutputSwitch    := \r
+PreprocessOnlySwitch   :=-E \r
+ObjectsFileList        :="C:\Users\wittend\Projects\audio\portaudio_test\paEcho\pa_test\pa_test.txt"\r
+PCHCompileFlags        :=\r
+MakeDirCommand         :=makedir\r
+CmpOptions             := -g -O0 -Wall $(Preprocessors)\r
+C_CmpOptions           := -g -O0 -Wall $(Preprocessors)\r
+LinkOptions            :=  \r
+IncludePath            :=  $(IncludeSwitch). $(IncludeSwitch). $(IncludeSwitch)../../../portaudio/include \r
+IncludePCH             := \r
+RcIncludePath          := \r
+Libs                   := $(LibrarySwitch)portaudio \r
+LibPath                := $(LibraryPathSwitch). \r
+\r
+\r
+##\r
+## User defined environment variables\r
+##\r
+CodeLiteDir:=C:\Program Files\CodeLite\r
+WXWIN:=C:\bin\wxWidgets-2.9.2\r
+PATH:=$(WXWIN)\lib\gcc_dll;$(PATH)\r
+WXCFG:=gcc_dll\mswu\r
+UNIT_TEST_PP_SRC_DIR:=C:\bin\UnitTest++-1.3\r
+Objects=$(IntermediateDirectory)/pa_class$(ObjectSuffix) \r
+\r
+##\r
+## Main Build Targets \r
+##\r
+.PHONY: all clean PreBuild PrePreBuild PostBuild\r
+all: $(OutputFile)\r
+\r
+$(OutputFile): $(IntermediateDirectory)/.d $(Objects) \r
+       @$(MakeDirCommand) $(@D)\r
+       @echo "" > $(IntermediateDirectory)/.d\r
+       @echo $(Objects) > $(ObjectsFileList)\r
+       $(LinkerName) $(OutputSwitch)$(OutputFile) @$(ObjectsFileList) $(LibPath) $(Libs) $(LinkOptions)\r
+\r
+$(IntermediateDirectory)/.d:\r
+       @$(MakeDirCommand) "./Debug"\r
+\r
+PreBuild:\r
+\r
+\r
+##\r
+## Objects\r
+##\r
+$(IntermediateDirectory)/pa_class$(ObjectSuffix): pa_class.cpp $(IntermediateDirectory)/pa_class$(DependSuffix)\r
+       $(CompilerName) $(IncludePCH) $(SourceSwitch) "C:/Users/wittend/Projects/audio/portaudio_test/paEcho/pa_test/pa_class.cpp" $(CmpOptions) $(ObjectSwitch)$(IntermediateDirectory)/pa_class$(ObjectSuffix) $(IncludePath)\r
+$(IntermediateDirectory)/pa_class$(DependSuffix): pa_class.cpp\r
+       @$(CompilerName) $(CmpOptions) $(IncludePCH) $(IncludePath) -MG -MP -MT$(IntermediateDirectory)/pa_class$(ObjectSuffix) -MF$(IntermediateDirectory)/pa_class$(DependSuffix) -MM "C:/Users/wittend/Projects/audio/portaudio_test/paEcho/pa_test/pa_class.cpp"\r
+\r
+$(IntermediateDirectory)/pa_class$(PreprocessSuffix): pa_class.cpp\r
+       @$(CompilerName) $(CmpOptions) $(IncludePCH) $(IncludePath) $(PreprocessOnlySwitch) $(OutputSwitch) $(IntermediateDirectory)/pa_class$(PreprocessSuffix) "C:/Users/wittend/Projects/audio/portaudio_test/paEcho/pa_test/pa_class.cpp"\r
+\r
+\r
+-include $(IntermediateDirectory)/*$(DependSuffix)\r
+##\r
+## Clean\r
+##\r
+clean:\r
+       $(RM) $(IntermediateDirectory)/pa_class$(ObjectSuffix)\r
+       $(RM) $(IntermediateDirectory)/pa_class$(DependSuffix)\r
+       $(RM) $(IntermediateDirectory)/pa_class$(PreprocessSuffix)\r
+       $(RM) $(OutputFile)\r
+       $(RM) $(OutputFile).exe\r
+       $(RM) "C:\Users\wittend\Projects\audio\portaudio_test\paEcho\.build-debug\pa_test"\r
+\r
+\r

diff --git a/fdmdv2/pa_test/pa_test.project b/fdmdv2/pa_test/pa_test.project
new file mode 100644 (file)
index 0000000..16ec14d
--- /dev/null
+++ b/fdmdv2/pa_test/pa_test.project
@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CodeLite_Project Name="pa_test" InternalType="Console">
+  <Plugins>
+    <Plugin Name="qmake">
+      <![CDATA[00020001N0005Debug0000000000000001N0007Release000000000000]]>
+    </Plugin>
+  </Plugins>
+  <Description/>
+  <Dependencies/>
+  <VirtualDirectory Name="src">
+    <File Name="pa_class.cpp"/>
+  </VirtualDirectory>
+  <Settings Type="Executable">
+    <GlobalSettings>
+      <Compiler Options="" C_Options="">
+        <IncludePath Value="."/>
+      </Compiler>
+      <Linker Options="">
+        <LibraryPath Value="."/>
+      </Linker>
+      <ResourceCompiler Options=""/>
+    </GlobalSettings>
+    <Configuration Name="Debug" CompilerType="gnu g++" DebuggerType="GNU gdb debugger" Type="Executable" BuildCmpWithGlobalSettings="append" BuildLnkWithGlobalSettings="append" BuildResWithGlobalSettings="append">
+      <Compiler Options="-g;-O0;-Wall" C_Options="-g;-O0;-Wall" Required="yes" PreCompiledHeader="" PCHInCommandLine="no" UseDifferentPCHFlags="no" PCHFlags="">
+        <IncludePath Value="."/>
+        <IncludePath Value="../../../portaudio/include"/>
+      </Compiler>
+      <Linker Options="" Required="yes">
+        <Library Value="portaudio"/>
+      </Linker>
+      <ResourceCompiler Options="" Required="no"/>
+      <General OutputFile="$(IntermediateDirectory)/$(ProjectName)" IntermediateDirectory="./Debug" Command="./$(ProjectName)" CommandArguments="" UseSeparateDebugArgs="no" DebugArguments="" WorkingDirectory="$(IntermediateDirectory)" PauseExecWhenProcTerminates="yes"/>
+      <Environment EnvVarSetName="&lt;Use Defaults&gt;" DbgSetName="&lt;Use Defaults&gt;">
+        <![CDATA[]]>
+      </Environment>
+      <Debugger IsRemote="no" RemoteHostName="" RemoteHostPort="" DebuggerPath="">
+        <PostConnectCommands/>
+        <StartupCommands/>
+      </Debugger>
+      <PreBuild/>
+      <PostBuild/>
+      <CustomBuild Enabled="no">
+        <RebuildCommand/>
+        <CleanCommand/>
+        <BuildCommand/>
+        <PreprocessFileCommand/>
+        <SingleFileCommand/>
+        <MakefileGenerationCommand/>
+        <ThirdPartyToolName>None</ThirdPartyToolName>
+        <WorkingDirectory/>
+      </CustomBuild>
+      <AdditionalRules>
+        <CustomPostBuild/>
+        <CustomPreBuild/>
+      </AdditionalRules>
+      <Completion>
+        <ClangCmpFlags/>
+        <ClangPP/>
+        <SearchPaths/>
+      </Completion>
+    </Configuration>
+    <Configuration Name="Release" CompilerType="gnu g++" DebuggerType="GNU gdb debugger" Type="Executable" BuildCmpWithGlobalSettings="append" BuildLnkWithGlobalSettings="append" BuildResWithGlobalSettings="append">
+      <Compiler Options="-O2;-Wall" C_Options="-O2;-Wall" Required="yes" PreCompiledHeader="" PCHInCommandLine="no" UseDifferentPCHFlags="no" PCHFlags="">
+        <IncludePath Value="."/>
+        <IncludePath Value="../../../portaudio/include"/>
+      </Compiler>
+      <Linker Options="" Required="yes">
+        <Library Value="portaudio"/>
+      </Linker>
+      <ResourceCompiler Options="" Required="no"/>
+      <General OutputFile="$(IntermediateDirectory)/$(ProjectName)" IntermediateDirectory="./Release" Command="./$(ProjectName)" CommandArguments="" UseSeparateDebugArgs="no" DebugArguments="" WorkingDirectory="$(IntermediateDirectory)" PauseExecWhenProcTerminates="yes"/>
+      <Environment EnvVarSetName="&lt;Use Defaults&gt;" DbgSetName="&lt;Use Defaults&gt;">
+        <![CDATA[]]>
+      </Environment>
+      <Debugger IsRemote="no" RemoteHostName="" RemoteHostPort="" DebuggerPath="">
+        <PostConnectCommands/>
+        <StartupCommands/>
+      </Debugger>
+      <PreBuild/>
+      <PostBuild/>
+      <CustomBuild Enabled="no">
+        <RebuildCommand/>
+        <CleanCommand/>
+        <BuildCommand/>
+        <PreprocessFileCommand/>
+        <SingleFileCommand/>
+        <MakefileGenerationCommand/>
+        <ThirdPartyToolName>None</ThirdPartyToolName>
+        <WorkingDirectory/>
+      </CustomBuild>
+      <AdditionalRules>
+        <CustomPostBuild/>
+        <CustomPreBuild/>
+      </AdditionalRules>
+      <Completion>
+        <ClangCmpFlags/>
+        <ClangPP/>
+        <SearchPaths/>
+      </Completion>
+    </Configuration>
+  </Settings>
+</CodeLite_Project>

diff --git a/fdmdv2/pa_test/pa_test.txt b/fdmdv2/pa_test/pa_test.txt
new file mode 100644 (file)
index 0000000..7a5e00d
--- /dev/null
+++ b/fdmdv2/pa_test/pa_test.txt
@@ -0,0 +1 @@
+./Debug/pa_class.o  \r

diff --git a/fdmdv2/pa_test/portaudio.dll b/fdmdv2/pa_test/portaudio.dll
new file mode 100644 (file)
index 0000000..9b29286
Binary files /dev/null and b/fdmdv2/pa_test/portaudio.dll differ