quant_matrix.h

来自「用MPEG-4对YUV视频文件编码压缩成divx视频文件」· C头文件 代码 · 共 52 行

#ifndef _QUANT_MATRIX_H_
#define _QUANT_MATRIX_H_
#include "../user_macro.h"
#include "../portab.h"
/* useful */
/*whq,2002.12.21,if don't judge in bitstream,the following 
  function can be moved
*/
uint8_t get_intra_matrix_status(void);
uint8_t get_inter_matrix_status(void);
int16_t *get_intra_matrix(void);
int16_t *get_inter_matrix(void);
/*whq*/

extern uint8_t custom_intra_matrix ;
extern uint8_t custom_inter_matrix ;

extern int16_t intra_matrix[64];
extern int16_t inter_matrix[64];
extern int16_t dc_quant[2][31];

extern int16_t intra_quant_mat_self[31][64];
extern int16_t inter_quant_mat_self[31][64];

/*whq,2002.12.21,if don't judge in bitstream,the following 
  function can be moved
*/
__inline uint8_t 
get_intra_matrix_status(void)
{
	return custom_intra_matrix;
}

__inline uint8_t
get_inter_matrix_status(void)
{
	return custom_inter_matrix;
}

__inline int16_t *
get_intra_matrix(void)
{
	return intra_matrix;
}
__inline int16_t *
get_inter_matrix(void)
{
	return inter_matrix;
}
/*whq*/
#endif							/* _QUANT_MATRIX_H_ */