/*
* Copyright ( c ) 2010 The WebM project authors . All Rights Reserved .
*
* Use of this source code is governed by a BSD - style license
* that can be found in the LICENSE file in the root of the source
* tree . An additional intellectual property rights grant can be found
* in the file PATENTS . All contributing project authors may
* be found in the AUTHORS file in the root of the source tree .
*/
#include "vpx_config.h"
#include "vp8_rtcd.h"
#include "vpx_mem/vpx_mem.h"
void vp8_dequant_idct_add_y_block_c(short *q, short *dq, unsigned char *dst,
int stride, char *eobs) {
int i, j;
for (i = 0 ; i < 4 ; ++i) {
for (j = 0 ; j < 4 ; ++j) {
if (*eobs++ > 1 ) {
vp8_dequant_idct_add_c(q, dq, dst, stride);
} else {
vp8_dc_only_idct_add_c(q[0 ] * dq[0 ], dst, stride, dst, stride);
memset(q, 0 , 2 * sizeof (q[0 ]));
}
q += 16 ;
dst += 4 ;
}
dst += 4 * stride - 16 ;
}
}
void vp8_dequant_idct_add_uv_block_c(short *q, short *dq, unsigned char *dst_u,
unsigned char *dst_v, int stride,
char *eobs) {
int i, j;
for (i = 0 ; i < 2 ; ++i) {
for (j = 0 ; j < 2 ; ++j) {
if (*eobs++ > 1 ) {
vp8_dequant_idct_add_c(q, dq, dst_u, stride);
} else {
vp8_dc_only_idct_add_c(q[0 ] * dq[0 ], dst_u, stride, dst_u, stride);
memset(q, 0 , 2 * sizeof (q[0 ]));
}
q += 16 ;
dst_u += 4 ;
}
dst_u += 4 * stride - 8 ;
}
for (i = 0 ; i < 2 ; ++i) {
for (j = 0 ; j < 2 ; ++j) {
if (*eobs++ > 1 ) {
vp8_dequant_idct_add_c(q, dq, dst_v, stride);
} else {
vp8_dc_only_idct_add_c(q[0 ] * dq[0 ], dst_v, stride, dst_v, stride);
memset(q, 0 , 2 * sizeof (q[0 ]));
}
q += 16 ;
dst_v += 4 ;
}
dst_v += 4 * stride - 8 ;
}
}
Messung V0.5 in Prozent C=90 H=96 G=93
¤ Dauer der Verarbeitung: 0.3 Sekunden
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*© Formatika GbR, Deutschland