48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
#pragma once
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#include <stdio.h>
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#include "audio_decode_types.h"
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#include "mp3dec.h"
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typedef struct {
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char header[3]; /*!< Always "TAG" */
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char title[30]; /*!< Audio title */
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char artist[30]; /*!< Audio artist */
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char album[30]; /*!< Album name */
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char year[4]; /*!< Char array of year */
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char comment[30]; /*!< Extra comment */
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char genre; /*!< See "https://en.wikipedia.org/wiki/ID3" */
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} __attribute__((packed)) mp3_id3_header_v1_t;
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typedef struct {
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char header[3]; /*!< Always "ID3" */
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char ver; /*!< Version, equals to3 if ID3V2.3 */
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char revision; /*!< Revision, should be 0 */
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char flag; /*!< Flag byte, use Bit[7..5] only */
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char size[4]; /*!< TAG size */
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} __attribute__((packed)) mp3_id3_header_v2_t;
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typedef struct {
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// Constants below
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uint8_t *data_buf;
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/** number of bytes in data_buf */
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size_t data_buf_size;
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// Values that change at runtime are below
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/**
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* Total bytes in data_buf,
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* not the number of bytes remaining after the read_ptr
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*/
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size_t bytes_in_data_buf;
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/** Pointer to read location in data_buf */
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uint8_t *read_ptr;
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// set to true if the end of file has been reached
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bool eof_reached;
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} mp3_instance;
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bool is_mp3(FILE *fp);
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DECODE_STATUS decode_mp3(HMP3Decoder mp3_decoder, FILE *fp, decode_data *pData, mp3_instance *pInstance);
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