romlib_runtime.h 文件参考

#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdio.h>

浏览源代码.

结构体
struct	_MP3FrameInfo
struct	riscv_cfft_instance_f32
struct	riscv_rfft_fast_instance_f32
struct	romruntime_func_s
struct	romruntime_func_s::mp3func_s
struct	romruntime_func_s::fftfunc_s
struct	romruntime_func_s::newlibcfunc_s

宏定义
#define	MASK_ROM_BOOT_CODE_ADDR   (0x1F000000)
#define	MASK_ROM_CORE_MAGIC_NUM_ADDR   (0x1F000000+0x1C)
#define	MASK_ROM_WINDOW_ADDR   (0x1F000000+79*1024)
#define	MASK_ROM_FFT_BIT_ADDR   (0x1F000000+8*1024)
#define	MASK_ROM_FFT_COEF_R_ADDR   (MASK_ROM_FFT_BIT_ADDR + sizeof(short)*440)
#define	MASK_ROM_FFT_COEF_ADDR   (MASK_ROM_FFT_COEF_R_ADDR + sizeof(float)*512)
#define	MASK_ROM_MEL_SCALE_ADDR   (MASK_ROM_FFT_COEF_ADDR + sizeof(float)*512)
#define	MASK_ROM_MEL_OFFSET_ADDR   (MASK_ROM_MEL_SCALE_ADDR + sizeof(float)*512)
#define	MASK_ROM_ASR_WINDOW_ADDR   (MASK_ROM_MEL_OFFSET_ADDR + sizeof(short)*(60))
#define	MASK_ROM_PCM_TABLE_ADDR   (MASK_ROM_ASR_WINDOW_ADDR + sizeof(short)*(400))
#define	MASK_ROM_LIB_RUNTIME_ADDR   (0x1F000000+16*1024)
#define	MASK_ROM_LIB_FUNC   ((romruntime_func_tab_t* )MASK_ROM_LIB_RUNTIME_ADDR)

类型定义
typedef void *	HMP3Decoder
typedef void *	MP3SaveLastInfo
typedef struct _MP3FrameInfo	MP3FrameInfo
typedef struct romruntime_func_s	romruntime_func_tab_t

枚举
enum	MPEGVersion {   MPEG1 = 0,   MPEG2 = 1,   MPEG25 = 2 }
enum	{   ERR_MP3_NONE = 0,   ERR_MP3_INDATA_UNDERFLOW = -1,   ERR_MP3_MAINDATA_UNDERFLOW = -2,   ERR_MP3_FREE_BITRATE_SYNC = -3,   ERR_MP3_OUT_OF_MEMORY = -4,   ERR_MP3_NULL_POINTER = -5,   ERR_MP3_INVALID_FRAMEHEADER = -6,   ERR_MP3_INVALID_SIDEINFO = -7,   ERR_MP3_INVALID_SCALEFACT = -8,   ERR_MP3_INVALID_HUFFCODES = -9,   ERR_MP3_INVALID_DEQUANTIZE = -10,   ERR_MP3_INVALID_IMDCT = -11,   ERR_MP3_INVALID_SUBBAND = -12,   ERR_UNKNOWN = -9999 }

---

结构体说明

_MP3FrameInfo

struct _MP3FrameInfo

成员变量
int	bitrate
int	bitsPerSample
int	layer
int	nChans
int	outputSamps
int	samprate
int	version

riscv_cfft_instance_f32

struct riscv_cfft_instance_f32

成员变量
uint16_t	bitRevLength	bit reversal table length.
uint16_t	fftLen	length of the FFT.
const uint16_t *	pBitRevTable	points to the bit reversal table.
const float *	pTwiddle	points to the Twiddle factor table.
const float *	pTwiddle2

riscv_rfft_fast_instance_f32

struct riscv_rfft_fast_instance_f32

成员变量
uint16_t	fftLenRFFT	length of the real sequence
const float *	pTwiddleRFFT	Twiddle factors real stage
const float *	pTwiddleRFFT2
riscv_cfft_instance_f32	Sint	Internal CFFT structure.

宏定义说明

MASK_ROM_ASR_WINDOW_ADDR

#define MASK_ROM_ASR_WINDOW_ADDR   (MASK_ROM_MEL_OFFSET_ADDR + sizeof(short)*(60))

MASK_ROM_BOOT_CODE_ADDR

#define MASK_ROM_BOOT_CODE_ADDR   (0x1F000000)

MASK_ROM_CORE_MAGIC_NUM_ADDR

#define MASK_ROM_CORE_MAGIC_NUM_ADDR   (0x1F000000+0x1C)

MASK_ROM_FFT_BIT_ADDR

#define MASK_ROM_FFT_BIT_ADDR   (0x1F000000+8*1024)

MASK_ROM_FFT_COEF_ADDR

#define MASK_ROM_FFT_COEF_ADDR   (MASK_ROM_FFT_COEF_R_ADDR + sizeof(float)*512)

MASK_ROM_FFT_COEF_R_ADDR

#define MASK_ROM_FFT_COEF_R_ADDR   (MASK_ROM_FFT_BIT_ADDR + sizeof(short)*440)

MASK_ROM_LIB_FUNC

#define MASK_ROM_LIB_FUNC   ((romruntime_func_tab_t* )MASK_ROM_LIB_RUNTIME_ADDR)

MASK_ROM_LIB_RUNTIME_ADDR

#define MASK_ROM_LIB_RUNTIME_ADDR   (0x1F000000+16*1024)

MASK_ROM_MEL_OFFSET_ADDR

#define MASK_ROM_MEL_OFFSET_ADDR   (MASK_ROM_MEL_SCALE_ADDR + sizeof(float)*512)

MASK_ROM_MEL_SCALE_ADDR

#define MASK_ROM_MEL_SCALE_ADDR   (MASK_ROM_FFT_COEF_ADDR + sizeof(float)*512)

MASK_ROM_PCM_TABLE_ADDR

#define MASK_ROM_PCM_TABLE_ADDR   (MASK_ROM_ASR_WINDOW_ADDR + sizeof(short)*(400))

MASK_ROM_WINDOW_ADDR

#define MASK_ROM_WINDOW_ADDR   (0x1F000000+79*1024)

类型定义说明

HMP3Decoder

typedef void* HMP3Decoder

MP3FrameInfo

typedef struct _MP3FrameInfo MP3FrameInfo

MP3SaveLastInfo

typedef void* MP3SaveLastInfo

romruntime_func_tab_t

typedef struct romruntime_func_s romruntime_func_tab_t

枚举类型说明

anonymous enum

anonymous enum

枚举值
ERR_MP3_NONE
ERR_MP3_INDATA_UNDERFLOW
ERR_MP3_MAINDATA_UNDERFLOW
ERR_MP3_FREE_BITRATE_SYNC
ERR_MP3_OUT_OF_MEMORY
ERR_MP3_NULL_POINTER
ERR_MP3_INVALID_FRAMEHEADER
ERR_MP3_INVALID_SIDEINFO
ERR_MP3_INVALID_SCALEFACT
ERR_MP3_INVALID_HUFFCODES
ERR_MP3_INVALID_DEQUANTIZE
ERR_MP3_INVALID_IMDCT
ERR_MP3_INVALID_SUBBAND
ERR_UNKNOWN

MPEGVersion

enum MPEGVersion

枚举值
MPEG1
MPEG2
MPEG25