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Revision 195 - (download) (annotate)
Wed Jun 12 20:38:41 2002 UTC (17 years, 2 months ago) by edgomez
Original Path: trunk/xvidcore/src/quant/quant_matrix.c
File size: 3917 byte(s)
Cosmetic - CodingStyle Applied - Legal Headers will be added later
#include "quant_matrix.h"

#define FIX(X) (1 << 16) / (X) + 1

uint8_t custom_intra_matrix = 0;
uint8_t custom_inter_matrix = 0;

uint8_t default_intra_matrix[64] = {
	8, 17, 18, 19, 21, 23, 25, 27,
	17, 18, 19, 21, 23, 25, 27, 28,
	20, 21, 22, 23, 24, 26, 28, 30,
	21, 22, 23, 24, 26, 28, 30, 32,
	22, 23, 24, 26, 28, 30, 32, 35,
	23, 24, 26, 28, 30, 32, 35, 38,
	25, 26, 28, 30, 32, 35, 38, 41,
	27, 28, 30, 32, 35, 38, 41, 45
};

int16_t intra_matrix[64] = {
	8, 17, 18, 19, 21, 23, 25, 27,
	17, 18, 19, 21, 23, 25, 27, 28,
	20, 21, 22, 23, 24, 26, 28, 30,
	21, 22, 23, 24, 26, 28, 30, 32,
	22, 23, 24, 26, 28, 30, 32, 35,
	23, 24, 26, 28, 30, 32, 35, 38,
	25, 26, 28, 30, 32, 35, 38, 41,
	27, 28, 30, 32, 35, 38, 41, 45
};

int16_t intra_matrix_fix[64] = {
	FIX(8), FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27),
	FIX(17), FIX(18), FIX(19), FIX(21), FIX(23), FIX(25), FIX(27), FIX(28),
	FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30),
	FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32),
	FIX(22), FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35),
	FIX(23), FIX(24), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38),
	FIX(25), FIX(26), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41),
	FIX(27), FIX(28), FIX(30), FIX(32), FIX(35), FIX(38), FIX(41), FIX(45)
};

uint8_t default_inter_matrix[64] = {
	16, 17, 18, 19, 20, 21, 22, 23,
	17, 18, 19, 20, 21, 22, 23, 24,
	18, 19, 20, 21, 22, 23, 24, 25,
	19, 20, 21, 22, 23, 24, 26, 27,
	20, 21, 22, 23, 25, 26, 27, 28,
	21, 22, 23, 24, 26, 27, 28, 30,
	22, 23, 24, 26, 27, 28, 30, 31,
	23, 24, 25, 27, 28, 30, 31, 33
};

int16_t inter_matrix[64] = {
	16, 17, 18, 19, 20, 21, 22, 23,
	17, 18, 19, 20, 21, 22, 23, 24,
	18, 19, 20, 21, 22, 23, 24, 25,
	19, 20, 21, 22, 23, 24, 26, 27,
	20, 21, 22, 23, 25, 26, 27, 28,
	21, 22, 23, 24, 26, 27, 28, 30,
	22, 23, 24, 26, 27, 28, 30, 31,
	23, 24, 25, 27, 28, 30, 31, 33
};

int16_t inter_matrix_fix[64] = {
	FIX(16), FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23),
	FIX(17), FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24),
	FIX(18), FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(25),
	FIX(19), FIX(20), FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27),
	FIX(20), FIX(21), FIX(22), FIX(23), FIX(25), FIX(26), FIX(27), FIX(28),
	FIX(21), FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30),
	FIX(22), FIX(23), FIX(24), FIX(26), FIX(27), FIX(28), FIX(30), FIX(31),
	FIX(23), FIX(24), FIX(25), FIX(27), FIX(28), FIX(30), FIX(31), FIX(33)
};

uint8_t
get_intra_matrix_status(void)
{
	return custom_intra_matrix;
}

uint8_t
get_inter_matrix_status(void)
{
	return custom_inter_matrix;
}

void
set_intra_matrix_status(uint8_t status)
{
	custom_intra_matrix = status;
}

void
set_inter_matrix_status(uint8_t status)
{
	custom_inter_matrix = status;
}

int16_t *
get_intra_matrix(void)
{
	return intra_matrix;
}

int16_t *
get_inter_matrix(void)
{
	return inter_matrix;
}

uint8_t *
get_default_intra_matrix(void)
{
	return default_intra_matrix;
}

uint8_t *
get_default_inter_matrix(void)
{
	return default_inter_matrix;
}

uint8_t
set_intra_matrix(uint8_t * matrix)
{
	int i, change = 0;

	custom_intra_matrix = 0;

	for (i = 0; i < 64; i++) {
		if ((int16_t) default_intra_matrix[i] != matrix[i])
			custom_intra_matrix = 1;
		if (intra_matrix[i] != matrix[i])
			change = 1;

		intra_matrix[i] = (int16_t) matrix[i];
		intra_matrix_fix[i] = FIX(intra_matrix[i]);
	}
	return custom_intra_matrix | change;
}


uint8_t
set_inter_matrix(uint8_t * matrix)
{
	int i, change = 0;

	custom_inter_matrix = 0;

	for (i = 0; i < 64; i++) {
		if ((int16_t) default_inter_matrix[i] != matrix[i])
			custom_inter_matrix = 1;
		if (inter_matrix[i] != matrix[i])
			change = 1;

		inter_matrix[i] = (int16_t) matrix[i];
		inter_matrix_fix[i] = FIX(inter_matrix[i]);
	}
	return custom_inter_matrix | change;
}

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