Create Wav.hpp

2023-04-08 00:03:56 +08:00 · 2023-04-08 00:03:56 +08:00 · d135cecf29
parent a77b7f37fd
commit d135cecf29
1 changed files with 99 additions and 0 deletions
--- a/CppDataProcess/Wav.hpp
+++ b/CppDataProcess/Wav.hpp
@ -0,0 +1,99 @@
+class Wav {
+public:
+
+	struct WAV_HEADER {
+		char             RIFF[4] = { 'R','I','F','F' };              //RIFF<46><46>ʶ
+		unsigned long    ChunkSize;                                  //<2F>ļ<EFBFBD><C4BC><EFBFBD>С-8
+		char             WAVE[4] = { 'W','A','V','E' };              //WAVE<56><45>
+		char             fmt[4] = { 'f','m','t',' ' };               //fmt<6D><74>
+		unsigned long    Subchunk1Size;                              //fmt<6D><74><EFBFBD>С
+		unsigned short   AudioFormat;                                //<2F><><EFBFBD><EFBFBD><EFBFBD>ʽ
+		unsigned short   NumOfChan;                                  //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		unsigned long    SamplesPerSec;                              //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+		unsigned long    bytesPerSec;                                //ÿ<><C3BF><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>
+		unsigned short   blockAlign;                                 //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>
+		unsigned short   bitsPerSample;                              //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
+		char             Subchunk2ID[4] = { 'd','a','t','a' };       //<2F><><EFBFBD>ݿ<EFBFBD>
+		unsigned long    Subchunk2Size;                              //<2F><><EFBFBD>ݿ<EFBFBD><DDBF>С
+		WAV_HEADER(unsigned long cs = 36, unsigned long sc1s = 16, unsigned short af = 1, unsigned short nc = 1, unsigned long sr = 22050, unsigned long bps = 44100, unsigned short ba = 2, unsigned short bips = 16, unsigned long sc2s = 0) :ChunkSize(cs), Subchunk1Size(sc1s), AudioFormat(af), NumOfChan(nc), SamplesPerSec(sr), bytesPerSec(bps), blockAlign(ba), bitsPerSample(bips), Subchunk2Size(sc2s) {}
+	};
+	using iterator = int16_t*;
+	Wav(unsigned long cs = 36, unsigned long sc1s = 16, unsigned short af = 1, unsigned short nc = 1, unsigned long sr = 22050, unsigned long bps = 44100, unsigned short ba = 2, unsigned short bips = 16, unsigned long sc2s = 0) :header({
+			cs,
+			sc1s,
+			af,
+			nc,
+			sr,
+			bps,
+			ba,
+			bips,
+			sc2s
+		}), Data(nullptr), StartPos(44) {
+		dataSize = 0;
+		SData = nullptr;
+	}
+	Wav(unsigned long sr, unsigned long length, const void* data) :header({
+			36,
+			16,
+			1,
+			1,
+			sr,
+			sr * 2,
+			2,
+			16,
+			length
+		}), Data(new char[length + 1]), StartPos(44)
+	{
+		header.ChunkSize = 36 + length;
+		memcpy(Data, data, length);
+		SData = reinterpret_cast<int16_t*>(Data);
+		dataSize = length / 2;
+	}
+	Wav(const wchar_t* Path);
+	Wav(const Wav& input);
+	Wav(Wav&& input) noexcept;
+	Wav& operator=(const Wav& input) = delete;
+	Wav& operator=(Wav&& input) noexcept;
+	~Wav() { destory(); }
+	Wav& cat(const Wav& input);
+	bool isEmpty() const { return this->header.Subchunk2Size == 0; }
+	const char* getData() const { return Data; }
+	char* getData() { return Data; }
+	WAV_HEADER getHeader() const { return header; }
+	WAV_HEADER& Header() { return header; }
+	void destory() const { delete[] Data; }
+	void changeData(const void* indata,long length,int sr)
+	{
+		delete[] Data;
+		Data = new char[length];
+		memcpy(Data, indata, length);
+		header.ChunkSize = 36 + length;
+		header.Subchunk2Size = length;
+		header.SamplesPerSec = sr;
+		header.bytesPerSec = 2 * sr;
+	}
+	int16_t& operator[](const size_t index) const
+	{
+		if (index < dataSize)
+			return *(SData + index);
+		return *(SData + dataSize - 1);
+	}
+	iterator begin() const
+	{
+		return reinterpret_cast<int16_t*>(Data);
+	}
+	iterator end() const
+	{
+		return reinterpret_cast<int16_t*>(Data + header.Subchunk2Size);
+	}
+	int64_t getDataLen()const
+	{
+		return static_cast<int64_t>(dataSize);
+	}
+private:
+	WAV_HEADER header;
+	char* Data;
+	int16_t* SData;
+	size_t dataSize;
+	int StartPos;
+};