waif

u

waif/main.c

@@ -1,2 +1,136 @@
 #include <stdio.h>
 #include <math.h>
+#include <string.h>
+#include <stdint.h>
+
+#define NULL 0
+#define BOOL uint8_t
+#define TRUE 1
+#define FALSE 0
+
+#define SAMPLE_RATE	48000
+#define BYTE_RATE 800
+
+/* CMD LINE ARG STRUCT */
+struct {
+	char *source, *destination;
+	BOOL encoding;
+} args;
+
+/* FILE IO */
+FILE *inFile, *outFile;
+void writeWavHeader(uint32_t inputFileSize);
+void writeBytes(uint64_t bytes, int byteCount) {
+	for (int i = 0; i < byteCount; ++i)
+		fputc(((char*)bytes)[7-byteCount+i+1], outFile);
+}
+
+/* MATH */
+double freqPeriodConv(double fop) {
+	return 1.f / fop;
+}
+
+double samplePeriod() {
+	return freqPeriodConv(SAMPLE_RATE);
+}
+
+int samplesPerByte() {
+	return SAMPLE_RATE / BYTE_RATE;
+}
+
+uint32_t audioFileSize(uint32_t inputFileSize) {
+	return samplesPerByte() * inputFileSize * 2;
+}
+
+/* MISC */
+void printHelp();
+
+int main(int argc, char *argv[]) {
+	if (argc < 2 || argc > 4) {
+		printHelp();
+		return -1;
+	}
+
+	args.source = NULL;
+	args.destination = "wout.raw";
+	args.encoding = TRUE;
+	for (int i = 0; i < argc; ++i) {
+		switch (i) {
+		case 0:
+			if (strlen(argv[i]) == 2 && argv[i][0] == '/') {
+				if (argv[i][1] == 'D' || argv[i][1] == 'd')
+					args.encoding = FALSE;
+				else if (argv[i][1] != 'E' && argv[i][1] != 'e') {
+					printHelp();
+					return -1;
+				}
+				break;
+			}
+		default:
+			if (args.source == NULL)
+				args.source = argv[i];
+			else if (args.destination == NULL)
+				args.destination = argv[i];
+			else {
+				printHelp();
+				return -1;
+			}
+			break;
+		}
+	}
+
+	if ((inFile = fopen(args.source, "rb")) == NULL) {
+		printf("Source file does not exist or cannot be accessed.");
+		return -1;
+	}
+
+	if ((outFile = fopen(args.destination, "wb+")) == NULL) {
+		printf("Destination file cannot be written to.");
+		return -1;
+	}
+
+	if (args.encoding == TRUE) {
+		fseek(inFile, 0, SEEK_END);
+		uint32_t fileSize = ftell(inFile);
+		rewind(inFile);
+
+		writeWavHeader(fileSize);
+		double dt = samplePeriod();
+		int spb = samplesPerByte();
+		for(;;) {
+
+		}
+	}
+
+	fclose(inFile);
+	fclose(outFile);
+	return 0;
+}
+
+void printHelp() {
+	printf("Waif - Wireless Audio Interchange Format converter\n\n");
+	printf("waif [/E] [/D] source [destination]\n\n");
+	printf("  source\tSpecifies the file to be converted.\n");
+	printf("  destination\tSpecifies the directory and/or filename\n  \t\tfor the converted file.\n");
+	printf("  /E\t\tEncodes the file.\n");
+	printf("  /D\t\tDecodes the file.\n\n");
+	printf("The /E and /D switches may not be used together. If neither\nis specified, /E is implied. If destination is not supplied,\noutput will be written to 'wout'.");
+}
+
+void writeWavHeader(uint32_t inputFileSize) {
+	uint32_t dataSize = samplesPerByte() * inputFileSize * 2;
+	fputs("RIFF", outFile);
+	writeBytes(36 + dataSize, 4);
+	fputs("WAVE", outFile);
+	fputs("fmt ", outFile);
+	writeBytes(16, 4);
+	writeBytes(1, 2);
+	writeBytes(1, 2);
+	writeBytes(SAMPLE_RATE, 4);
+	writeBytes(SAMPLE_RATE * 2, 4);
+	writeBytes(2, 2);
+	writeBytes(16, 2);
+	fputs("data", outFile);
+	fputs("fmt ", outFile);
+	writeBytes(dataSize, 4);
+}

waif/waif.vcxproj

@@ -88,6 +88,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <CompileAs>CompileAsC</CompileAs>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -116,6 +117,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <CompileAs>CompileAsC</CompileAs>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -142,6 +144,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="main.c" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

waif/waif.vcxproj.filters

@@ -14,4 +14,9 @@
       <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
     </Filter>
   </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="main.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
 </Project>