WAVFileInfo.h

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#ifndef __EO_UTILS_WAV_FILE_INFO_H__
#define __EO_UTILS_WAV_FILE_INFO_H__
 
#include <string>
#include <fstream>
 
#include "AudioFileResultType.h"
#include "AudioFileInfo.h"
 
namespace EOUtils
{
        #define BITS_PER_BYTE 8
 
        class WAVFileInfo : public AudioFileInfo
        {
                public:
                        WAVFileInfo(int16_t pNumChannels = 0, int32_t pSampleRateHz = 0, int32_t pBytesPerSecond = 0, int16_t pByteRate = 0, int16_t pBitsPerSample = 0);

                        WAVFileInfo(const AudioFileInfo& pAudioFileInfo);

                        AudioFileResultType read(std::fstream& pInFStream) override;

                        AudioFileResultType write(std::fstream& pOutFStream) override;
 
                        AudioFileResultType updateFileSizeSizeInFile(std::fstream& pOutFStream, int32_t pFileSize);
 
                        AudioFileResultType updateDataSizeSizeInFile(std::fstream& pOutFStream, int32_t pDataSize);
 
                        std::string WAVHeader() const;
 
                        std::string RIFFType() const;
 
                        std::string Subchunk2ID() const;
                        
                        int32_t Subchunk2Size() const;
 
                        int32_t DataSizeBytes() const;
 
                        int16_t BitsPerSample() const override;
 
                        void BitsPerSample(int16_t pBitsPerSample) override;
 
                        void SetWAVHeaderAndRIFFType();
 
                        void SetSubchunk2IDAndSize();
 
                        static size_t WAVFileHdrSize();
 
                        static int16_t BitsPerSample(const char* pFilename);
 
                        static bool isWAVFile(const char* pFilename);
 
                int32_t AudioDataOffset() const;
 
                private:
                        char mWAVHeader[4];     // The WAV header (4 bytes, "RIFF")
                        char mRIFFType[4];      // The RIFF type (4 bytes, "WAVE")
                        char mSubchunk2ID[4];
                        int32_t mSubchunk2Size;
                        int32_t mDataSizeBytes;
                        int32_t mAudioDataOffset;  // byte offset where audio sample data begins
        };
}
 
#endif