Diff: WavObject.h

Revision:

0:5347612e39a3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WavObject.h	Tue Apr 07 21:09:51 2015 +0000
@@ -0,0 +1,95 @@
+//
+//  WavObject.h
+//  Demo
+//
+//  Created by Philadelphia Game Lab on 7/7/14.
+//  Copyright (c) 2014 Philadelphia Game Lab. All rights reserved.
+//
+
+#ifndef WAVOBJECT_H
+#define WAVOBJECT_H
+
+#include <string>
+#include "complextype.h"
+#include <cmath>
+#include <math.h>
+#include <iostream>
+
+//using std::complex;
+
+class WavObject {
+    
+    FILE* soundFile;
+    struct
+    {
+        long n;
+        int sampleRate;
+        int bitDepth;
+        int nChannels;
+    }wavFileData;
+    long startOfWavData;
+    long endOfWavData;
+    
+public:
+    
+    //Struct that holds RIFF data of Wave File.
+    //RIFF data is meta data info that holds ID, size and format of WAVE file.
+    struct RIFF_Header {
+        char chunkID[4];
+        unsigned int chunkSize;
+        char format[4];
+    };
+    
+    //Struct that holds format subchunk data for WAVE file.
+    struct WAVE_Format {
+        unsigned int subChunkSize;
+        short audioFormat;
+        short nChannels;
+        unsigned int sampleRate;
+        unsigned int byteRate;
+        short blockAlign;
+        short bitsPerSample;
+    };
+    
+    //Struct that holds data of WAVE file.
+    struct WAVE_Data {
+        long subChunk2Size;
+    };
+    
+    //Struct to hold subchunkID
+    struct CHUNK_ID {
+        char chunkID[4];
+    };
+    
+    
+    WAVE_Format wave_format;
+    RIFF_Header riff_header;
+    WAVE_Data wave_data;
+    CHUNK_ID chunk_id;
+    
+    short *shortTempData;
+    Complex *complexTempData;
+    
+    
+    WavObject (unsigned int size,const std::string wavFileName) : shortTempData(new short[size]), complexTempData(new Complex[size]) {
+        extractWavHeader(wavFileName);
+    }
+    
+    Complex *loadCmpWavData(const std::string fname, long *size, int *smpFreq, int *bitDepth, int *channels);
+    void extractWavHeader (const std::string fname);
+    
+    // returns false if end of file reached and no repeat, true otherwise
+    bool loadMoreData(unsigned int size, bool repeat);
+    
+    void seekToBeginning();
+    
+    ~WavObject () {
+        delete[] shortTempData;
+        delete[] complexTempData;
+        if (soundFile)
+            fclose(soundFile);
+    }
+    
+};
+
+#endif
\ No newline at end of file