#ifndef WAVE_HEADER_H
#define WAVE_HEADER_H

namespace Wave {

	enum AudioFormat {
		PCM = 0x01,
		IMA_ADPCM = 0x11,
		MP3 = 0x55,
	};

	struct Header {

		uint32_t chunkID;
		uint32_t chunkSize;										// file-size - 8
		char format[4] =			{'W', 'A', 'V', 'E'};

		char subChunk1ID[4] =		{'f', 'm', 't', ' '};
		uint32_t subChunk1Size = 20;

		uint16_t audioFormat = AudioFormat::PCM;
		uint16_t numChannels = 1;
		uint32_t sampleRate = 22050;
		uint32_t byteRate = sampleRate * 256 / 505;
		uint16_t blockAlign = 0x100;
		uint16_t bitsPerSample = 8;

		uint16_t byteExtraData = 2;
		uint16_t extraData = 505;								// samples-per-block. see byteRate

		char subChunk2ID[4] =		{'f', 'a', 'c', 't'};
		uint32_t subChunk2Size = 4;
		uint32_t numOfSamples = 0xFFFFFFFF;						// play forever

		char subChunk3ID[4] =		{'d', 'a', 't', 'a'};
		uint32_t subChunk3Size = 0xFFFFFFFF;					// file-size - 60

	};

#endif