deinterlace: orcify some deinterlacing methods

This commit is contained in:
David Schleef 2010-06-08 16:04:23 -07:00
parent f14972bf20
commit 9ff3ef0c92
7 changed files with 673 additions and 23 deletions

View file

@ -1,5 +1,8 @@
plugin_LTLIBRARIES = libgstdeinterlace.la
ORC_SOURCE=tvtime
include $(top_srcdir)/common/orc.mak
libgstdeinterlace_la_SOURCES = \
gstdeinterlace.c \
gstdeinterlacemethod.c \
@ -13,6 +16,7 @@ libgstdeinterlace_la_SOURCES = \
tvtime/linear.c \
tvtime/linearblend.c \
tvtime/scalerbob.c
nodist_libgstdeinterlace_la_SOURCES = $(ORC_NODIST_SOURCES)
libgstdeinterlace_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) $(ORC_CFLAGS)

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@ -0,0 +1,586 @@
/* autogenerated from tvtime.orc */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef DISABLE_ORC
#include <orc/orc.h>
#else
#include <stdint.h>
#endif
#include <glib.h>
void deinterlace_line_vfir (guint8 * d1, const guint8 * s1, const guint8 * s2,
const guint8 * s3, const guint8 * s4, const guint8 * s5, int n);
void deinterlace_line_linear (guint8 * d1, const guint8 * s1, const guint8 * s2,
int n);
void deinterlace_line_linear_blend (guint8 * d1, const guint8 * s1,
const guint8 * s2, const guint8 * s3, int n);
/* begin Orc C target preamble */
#define ORC_CLAMP(x,a,b) ((x)<(a) ? (a) : ((x)>(b) ? (b) : (x)))
#define ORC_ABS(a) ((a)<0 ? -(a) : (a))
#define ORC_MIN(a,b) ((a)<(b) ? (a) : (b))
#define ORC_MAX(a,b) ((a)>(b) ? (a) : (b))
#define ORC_SB_MAX 127
#define ORC_SB_MIN (-1-ORC_SB_MAX)
#define ORC_UB_MAX 255
#define ORC_UB_MIN 0
#define ORC_SW_MAX 32767
#define ORC_SW_MIN (-1-ORC_SW_MAX)
#define ORC_UW_MAX 65535
#define ORC_UW_MIN 0
#define ORC_SL_MAX 2147483647
#define ORC_SL_MIN (-1-ORC_SL_MAX)
#define ORC_UL_MAX 4294967295U
#define ORC_UL_MIN 0
#define ORC_CLAMP_SB(x) ORC_CLAMP(x,ORC_SB_MIN,ORC_SB_MAX)
#define ORC_CLAMP_UB(x) ORC_CLAMP(x,ORC_UB_MIN,ORC_UB_MAX)
#define ORC_CLAMP_SW(x) ORC_CLAMP(x,ORC_SW_MIN,ORC_SW_MAX)
#define ORC_CLAMP_UW(x) ORC_CLAMP(x,ORC_UW_MIN,ORC_UW_MAX)
#define ORC_CLAMP_SL(x) ORC_CLAMP(x,ORC_SL_MIN,ORC_SL_MAX)
#define ORC_CLAMP_UL(x) ORC_CLAMP(x,ORC_UL_MIN,ORC_UL_MAX)
#define ORC_SWAP_W(x) ((((x)&0xff)<<8) | (((x)&0xff00)>>8))
#define ORC_SWAP_L(x) ((((x)&0xff)<<24) | (((x)&0xff00)<<8) | (((x)&0xff0000)>>8) | (((x)&0xff000000)>>24))
#define ORC_PTR_OFFSET(ptr,offset) ((void *)(((unsigned char *)(ptr)) + (offset)))
#define ORC_AS_FLOAT(x) (((union { int i; float f; } *)(&x))->f)
typedef union
{
int32_t i;
float f;
} orc_union32;
typedef union
{
int64_t i;
double f;
} orc_union64;
/* end Orc C target preamble */
/* deinterlace_line_vfir */
#ifdef DISABLE_ORC
void
deinterlace_line_vfir (guint8 * d1, const guint8 * s1, const guint8 * s2,
const guint8 * s3, const guint8 * s4, const guint8 * s5, int n)
{
int i;
int8_t var0;
int8_t *ptr0;
int8_t var4;
const int8_t *ptr4;
int8_t var5;
const int8_t *ptr5;
int8_t var6;
const int8_t *ptr6;
int8_t var7;
const int8_t *ptr7;
int8_t var8;
const int8_t *ptr8;
const int16_t var16 = 2;
const int16_t var17 = 1;
const int16_t var18 = 4;
const int16_t var19 = 3;
int16_t var32;
int16_t var33;
int16_t var34;
int16_t var35;
int16_t var36;
int16_t var37;
int16_t var38;
int16_t var39;
int16_t var40;
int16_t var41;
int16_t var42;
int16_t var43;
int16_t var44;
ptr0 = (int8_t *) d1;
ptr4 = (int8_t *) s1;
ptr5 = (int8_t *) s2;
ptr6 = (int8_t *) s3;
ptr7 = (int8_t *) s4;
ptr8 = (int8_t *) s5;
for (i = 0; i < n; i++) {
var4 = *ptr4;
ptr4++;
var5 = *ptr5;
ptr5++;
var6 = *ptr6;
ptr6++;
var7 = *ptr7;
ptr7++;
var8 = *ptr8;
ptr8++;
/* 0: convubw */
var32 = (uint8_t) var4;
/* 1: convubw */
var33 = (uint8_t) var8;
/* 2: addw */
var35 = var32 + var33;
/* 3: convubw */
var36 = (uint8_t) var5;
/* 4: convubw */
var34 = (uint8_t) var7;
/* 5: addw */
var37 = var36 + var34;
/* 6: shlw */
var38 = var37 << var16;
/* 7: convubw */
var39 = (uint8_t) var6;
/* 8: shlw */
var40 = var39 << var17;
/* 9: subw */
var41 = var38 - var35;
/* 10: addw */
var42 = var41 + var40;
/* 11: addw */
var43 = var42 + var18;
/* 12: shrsw */
var44 = var43 >> var19;
/* 13: convsuswb */
var0 = ORC_CLAMP_UB (var44);
*ptr0 = var0;
ptr0++;
}
}
#else
static void
_backup_deinterlace_line_vfir (OrcExecutor * ex)
{
int i;
int n = ex->n;
int8_t var0;
int8_t *ptr0;
int8_t var4;
const int8_t *ptr4;
int8_t var5;
const int8_t *ptr5;
int8_t var6;
const int8_t *ptr6;
int8_t var7;
const int8_t *ptr7;
int8_t var8;
const int8_t *ptr8;
const int16_t var16 = 2;
const int16_t var17 = 1;
const int16_t var18 = 4;
const int16_t var19 = 3;
int16_t var32;
int16_t var33;
int16_t var34;
int16_t var35;
int16_t var36;
int16_t var37;
int16_t var38;
int16_t var39;
int16_t var40;
int16_t var41;
int16_t var42;
int16_t var43;
int16_t var44;
ptr0 = (int8_t *) ex->arrays[0];
ptr4 = (int8_t *) ex->arrays[4];
ptr5 = (int8_t *) ex->arrays[5];
ptr6 = (int8_t *) ex->arrays[6];
ptr7 = (int8_t *) ex->arrays[7];
ptr8 = (int8_t *) ex->arrays[8];
for (i = 0; i < n; i++) {
var4 = *ptr4;
ptr4++;
var5 = *ptr5;
ptr5++;
var6 = *ptr6;
ptr6++;
var7 = *ptr7;
ptr7++;
var8 = *ptr8;
ptr8++;
/* 0: convubw */
var32 = (uint8_t) var4;
/* 1: convubw */
var33 = (uint8_t) var8;
/* 2: addw */
var35 = var32 + var33;
/* 3: convubw */
var36 = (uint8_t) var5;
/* 4: convubw */
var34 = (uint8_t) var7;
/* 5: addw */
var37 = var36 + var34;
/* 6: shlw */
var38 = var37 << var16;
/* 7: convubw */
var39 = (uint8_t) var6;
/* 8: shlw */
var40 = var39 << var17;
/* 9: subw */
var41 = var38 - var35;
/* 10: addw */
var42 = var41 + var40;
/* 11: addw */
var43 = var42 + var18;
/* 12: shrsw */
var44 = var43 >> var19;
/* 13: convsuswb */
var0 = ORC_CLAMP_UB (var44);
*ptr0 = var0;
ptr0++;
}
}
void
deinterlace_line_vfir (guint8 * d1, const guint8 * s1, const guint8 * s2,
const guint8 * s3, const guint8 * s4, const guint8 * s5, int n)
{
OrcExecutor _ex, *ex = &_ex;
static int p_inited = 0;
static OrcProgram *p = 0;
void (*func) (OrcExecutor *);
if (!p_inited) {
orc_once_mutex_lock ();
if (!p_inited) {
OrcCompileResult result;
p = orc_program_new ();
orc_program_set_name (p, "deinterlace_line_vfir");
orc_program_set_backup_function (p, _backup_deinterlace_line_vfir);
orc_program_add_destination (p, 1, "d1");
orc_program_add_source (p, 1, "s1");
orc_program_add_source (p, 1, "s2");
orc_program_add_source (p, 1, "s3");
orc_program_add_source (p, 1, "s4");
orc_program_add_source (p, 1, "s5");
orc_program_add_constant (p, 2, 2, "c1");
orc_program_add_constant (p, 2, 1, "c2");
orc_program_add_constant (p, 2, 4, "c3");
orc_program_add_constant (p, 2, 3, "c4");
orc_program_add_temporary (p, 2, "t1");
orc_program_add_temporary (p, 2, "t2");
orc_program_add_temporary (p, 2, "t3");
orc_program_append (p, "convubw", ORC_VAR_T1, ORC_VAR_S1, ORC_VAR_D1);
orc_program_append (p, "convubw", ORC_VAR_T2, ORC_VAR_S5, ORC_VAR_D1);
orc_program_append (p, "addw", ORC_VAR_T1, ORC_VAR_T1, ORC_VAR_T2);
orc_program_append (p, "convubw", ORC_VAR_T2, ORC_VAR_S2, ORC_VAR_D1);
orc_program_append (p, "convubw", ORC_VAR_T3, ORC_VAR_S4, ORC_VAR_D1);
orc_program_append (p, "addw", ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_T3);
orc_program_append (p, "shlw", ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_C1);
orc_program_append (p, "convubw", ORC_VAR_T3, ORC_VAR_S3, ORC_VAR_D1);
orc_program_append (p, "shlw", ORC_VAR_T3, ORC_VAR_T3, ORC_VAR_C2);
orc_program_append (p, "subw", ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_T1);
orc_program_append (p, "addw", ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_T3);
orc_program_append (p, "addw", ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_C3);
orc_program_append (p, "shrsw", ORC_VAR_T2, ORC_VAR_T2, ORC_VAR_C4);
orc_program_append (p, "convsuswb", ORC_VAR_D1, ORC_VAR_T2, ORC_VAR_D1);
result = orc_program_compile (p);
}
p_inited = TRUE;
orc_once_mutex_unlock ();
}
ex->program = p;
ex->n = n;
ex->arrays[ORC_VAR_D1] = d1;
ex->arrays[ORC_VAR_S1] = (void *) s1;
ex->arrays[ORC_VAR_S2] = (void *) s2;
ex->arrays[ORC_VAR_S3] = (void *) s3;
ex->arrays[ORC_VAR_S4] = (void *) s4;
ex->arrays[ORC_VAR_S5] = (void *) s5;
func = p->code_exec;
func (ex);
}
#endif
/* deinterlace_line_linear */
#ifdef DISABLE_ORC
void
deinterlace_line_linear (guint8 * d1, const guint8 * s1, const guint8 * s2,
int n)
{
int i;
int8_t var0;
int8_t *ptr0;
int8_t var4;
const int8_t *ptr4;
int8_t var5;
const int8_t *ptr5;
ptr0 = (int8_t *) d1;
ptr4 = (int8_t *) s1;
ptr5 = (int8_t *) s2;
for (i = 0; i < n; i++) {
var4 = *ptr4;
ptr4++;
var5 = *ptr5;
ptr5++;
/* 0: avgub */
var0 = ((uint8_t) var4 + (uint8_t) var5 + 1) >> 1;
*ptr0 = var0;
ptr0++;
}
}
#else
static void
_backup_deinterlace_line_linear (OrcExecutor * ex)
{
int i;
int n = ex->n;
int8_t var0;
int8_t *ptr0;
int8_t var4;
const int8_t *ptr4;
int8_t var5;
const int8_t *ptr5;
ptr0 = (int8_t *) ex->arrays[0];
ptr4 = (int8_t *) ex->arrays[4];
ptr5 = (int8_t *) ex->arrays[5];
for (i = 0; i < n; i++) {
var4 = *ptr4;
ptr4++;
var5 = *ptr5;
ptr5++;
/* 0: avgub */
var0 = ((uint8_t) var4 + (uint8_t) var5 + 1) >> 1;
*ptr0 = var0;
ptr0++;
}
}
void
deinterlace_line_linear (guint8 * d1, const guint8 * s1, const guint8 * s2,
int n)
{
OrcExecutor _ex, *ex = &_ex;
static int p_inited = 0;
static OrcProgram *p = 0;
void (*func) (OrcExecutor *);
if (!p_inited) {
orc_once_mutex_lock ();
if (!p_inited) {
OrcCompileResult result;
p = orc_program_new ();
orc_program_set_name (p, "deinterlace_line_linear");
orc_program_set_backup_function (p, _backup_deinterlace_line_linear);
orc_program_add_destination (p, 1, "d1");
orc_program_add_source (p, 1, "s1");
orc_program_add_source (p, 1, "s2");
orc_program_append (p, "avgub", ORC_VAR_D1, ORC_VAR_S1, ORC_VAR_S2);
result = orc_program_compile (p);
}
p_inited = TRUE;
orc_once_mutex_unlock ();
}
ex->program = p;
ex->n = n;
ex->arrays[ORC_VAR_D1] = d1;
ex->arrays[ORC_VAR_S1] = (void *) s1;
ex->arrays[ORC_VAR_S2] = (void *) s2;
func = p->code_exec;
func (ex);
}
#endif
/* deinterlace_line_linear_blend */
#ifdef DISABLE_ORC
void
deinterlace_line_linear_blend (guint8 * d1, const guint8 * s1,
const guint8 * s2, const guint8 * s3, int n)
{
int i;
int8_t var0;
int8_t *ptr0;
int8_t var4;
const int8_t *ptr4;
int8_t var5;
const int8_t *ptr5;
int8_t var6;
const int8_t *ptr6;
const int16_t var16 = 2;
const int16_t var17 = 2;
int16_t var32;
int16_t var33;
int16_t var34;
int16_t var35;
int16_t var36;
int16_t var37;
int16_t var38;
int16_t var39;
ptr0 = (int8_t *) d1;
ptr4 = (int8_t *) s1;
ptr5 = (int8_t *) s2;
ptr6 = (int8_t *) s3;
for (i = 0; i < n; i++) {
var4 = *ptr4;
ptr4++;
var5 = *ptr5;
ptr5++;
var6 = *ptr6;
ptr6++;
/* 0: convubw */
var32 = (uint8_t) var4;
/* 1: convubw */
var33 = (uint8_t) var5;
/* 2: convubw */
var34 = (uint8_t) var6;
/* 3: addw */
var35 = var32 + var33;
/* 4: addw */
var36 = var34 + var34;
/* 5: addw */
var37 = var35 + var36;
/* 6: addw */
var38 = var37 + var16;
/* 7: shrsw */
var39 = var38 >> var17;
/* 8: convsuswb */
var0 = ORC_CLAMP_UB (var39);
*ptr0 = var0;
ptr0++;
}
}
#else
static void
_backup_deinterlace_line_linear_blend (OrcExecutor * ex)
{
int i;
int n = ex->n;
int8_t var0;
int8_t *ptr0;
int8_t var4;
const int8_t *ptr4;
int8_t var5;
const int8_t *ptr5;
int8_t var6;
const int8_t *ptr6;
const int16_t var16 = 2;
const int16_t var17 = 2;
int16_t var32;
int16_t var33;
int16_t var34;
int16_t var35;
int16_t var36;
int16_t var37;
int16_t var38;
int16_t var39;
ptr0 = (int8_t *) ex->arrays[0];
ptr4 = (int8_t *) ex->arrays[4];
ptr5 = (int8_t *) ex->arrays[5];
ptr6 = (int8_t *) ex->arrays[6];
for (i = 0; i < n; i++) {
var4 = *ptr4;
ptr4++;
var5 = *ptr5;
ptr5++;
var6 = *ptr6;
ptr6++;
/* 0: convubw */
var32 = (uint8_t) var4;
/* 1: convubw */
var33 = (uint8_t) var5;
/* 2: convubw */
var34 = (uint8_t) var6;
/* 3: addw */
var35 = var32 + var33;
/* 4: addw */
var36 = var34 + var34;
/* 5: addw */
var37 = var35 + var36;
/* 6: addw */
var38 = var37 + var16;
/* 7: shrsw */
var39 = var38 >> var17;
/* 8: convsuswb */
var0 = ORC_CLAMP_UB (var39);
*ptr0 = var0;
ptr0++;
}
}
void
deinterlace_line_linear_blend (guint8 * d1, const guint8 * s1,
const guint8 * s2, const guint8 * s3, int n)
{
OrcExecutor _ex, *ex = &_ex;
static int p_inited = 0;
static OrcProgram *p = 0;
void (*func) (OrcExecutor *);
if (!p_inited) {
orc_once_mutex_lock ();
if (!p_inited) {
OrcCompileResult result;
p = orc_program_new ();
orc_program_set_name (p, "deinterlace_line_linear_blend");
orc_program_set_backup_function (p,
_backup_deinterlace_line_linear_blend);
orc_program_add_destination (p, 1, "d1");
orc_program_add_source (p, 1, "s1");
orc_program_add_source (p, 1, "s2");
orc_program_add_source (p, 1, "s3");
orc_program_add_constant (p, 2, 2, "c1");
orc_program_add_constant (p, 2, 2, "c2");
orc_program_add_temporary (p, 2, "t1");
orc_program_add_temporary (p, 2, "t2");
orc_program_add_temporary (p, 2, "t3");
orc_program_append (p, "convubw", ORC_VAR_T1, ORC_VAR_S1, ORC_VAR_D1);
orc_program_append (p, "convubw", ORC_VAR_T2, ORC_VAR_S2, ORC_VAR_D1);
orc_program_append (p, "convubw", ORC_VAR_T3, ORC_VAR_S3, ORC_VAR_D1);
orc_program_append (p, "addw", ORC_VAR_T1, ORC_VAR_T1, ORC_VAR_T2);
orc_program_append (p, "addw", ORC_VAR_T3, ORC_VAR_T3, ORC_VAR_T3);
orc_program_append (p, "addw", ORC_VAR_T1, ORC_VAR_T1, ORC_VAR_T3);
orc_program_append (p, "addw", ORC_VAR_T1, ORC_VAR_T1, ORC_VAR_C1);
orc_program_append (p, "shrsw", ORC_VAR_T1, ORC_VAR_T1, ORC_VAR_C2);
orc_program_append (p, "convsuswb", ORC_VAR_D1, ORC_VAR_T1, ORC_VAR_D1);
result = orc_program_compile (p);
}
p_inited = TRUE;
orc_once_mutex_unlock ();
}
ex->program = p;
ex->n = n;
ex->arrays[ORC_VAR_D1] = d1;
ex->arrays[ORC_VAR_S1] = (void *) s1;
ex->arrays[ORC_VAR_S2] = (void *) s2;
ex->arrays[ORC_VAR_S3] = (void *) s3;
func = p->code_exec;
func (ex);
}
#endif

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@ -0,0 +1,22 @@
/* autogenerated from tvtime.orc */
#ifndef _TVTIME_H_
#define _TVTIME_H_
#include <glib.h>
#ifdef __cplusplus
extern "C" {
#endif
void deinterlace_line_vfir (guint8 * d1, const guint8 * s1, const guint8 * s2, const guint8 * s3, const guint8 * s4, const guint8 * s5, int n);
void deinterlace_line_linear (guint8 * d1, const guint8 * s1, const guint8 * s2, int n);
void deinterlace_line_linear_blend (guint8 * d1, const guint8 * s1, const guint8 * s2, const guint8 * s3, int n);
#ifdef __cplusplus
}
#endif
#endif

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@ -0,0 +1,55 @@
.function deinterlace_line_vfir
.dest 1 d1 guint8
.source 1 s1 guint8
.source 1 s2 guint8
.source 1 s3 guint8
.source 1 s4 guint8
.source 1 s5 guint8
.temp 2 t1
.temp 2 t2
.temp 2 t3
convubw t1, s1
convubw t2, s5
addw t1, t1, t2
convubw t2, s2
convubw t3, s4
addw t2, t2, t3
shlw t2, t2, 2
convubw t3, s3
shlw t3, t3, 1
subw t2, t2, t1
addw t2, t2, t3
addw t2, t2, 4
shrsw t2, t2, 3
convsuswb d1, t2
.function deinterlace_line_linear
.dest 1 d1 guint8
.source 1 s1 guint8
.source 1 s2 guint8
avgub d1, s1, s2
.function deinterlace_line_linear_blend
.dest 1 d1 guint8
.source 1 s1 guint8
.source 1 s2 guint8
.source 1 s3 guint8
.temp 2 t1
.temp 2 t2
.temp 2 t3
convubw t1, s1
convubw t2, s2
convubw t3, s3
addw t1, t1, t2
addw t3, t3, t3
addw t1, t1, t3
addw t1, t1, 2
shrsw t1, t1, 2
convsuswb d1, t1

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@ -32,6 +32,7 @@
#ifdef HAVE_ORC
#include <orc/orc.h>
#endif
#include "tvtime.h"
#define GST_TYPE_DEINTERLACE_METHOD_LINEAR (gst_deinterlace_method_linear_get_type ())
#define GST_IS_DEINTERLACE_METHOD_LINEAR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR))
@ -50,10 +51,7 @@ static void
deinterlace_scanline_linear_c (GstDeinterlaceSimpleMethod * self,
guint8 * out, const guint8 * s1, const guint8 * s2, gint size)
{
gint i;
for (i = 0; i < size; i++)
out[i] = (s1[i] + s2[i]) / 2;
deinterlace_line_linear (out, s1, s2, size);
}
static void

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@ -36,6 +36,7 @@
#ifdef HAVE_ORC
#include <orc/orc.h>
#endif
#include "tvtime.h"
#define GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND (gst_deinterlace_method_linear_blend_get_type ())
#define GST_IS_DEINTERLACE_METHOD_LINEAR_BLEND(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_LINEAR_BLEND))
@ -55,9 +56,7 @@ deinterlace_scanline_linear_blend_c (GstDeinterlaceSimpleMethod * self,
guint8 * out, const guint8 * t0, const guint8 * b0, const guint8 * m1,
gint size)
{
while (size--) {
*out++ = (*t0++ + *b0++ + (*m1++ << 1)) >> 2;
}
deinterlace_line_linear_blend (out, t0, b0, m1, size);
}
static void

View file

@ -38,6 +38,7 @@
#ifdef HAVE_ORC
#include <orc/orc.h>
#endif
#include "tvtime.h"
#define GST_TYPE_DEINTERLACE_METHOD_VFIR (gst_deinterlace_method_vfir_get_type ())
#define GST_IS_DEINTERLACE_METHOD_VFIR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_VFIR))
@ -67,22 +68,7 @@ static inline void
deinterlace_c (guint8 * dst, const guint8 * lum_m4, const guint8 * lum_m3,
const guint8 * lum_m2, const guint8 * lum_m1, const guint8 * lum, gint size)
{
gint sum;
for (; size >= 0; size--) {
sum = -lum_m4[0];
sum += lum_m3[0] << 2;
sum += lum_m2[0] << 1;
sum += lum_m1[0] << 2;
sum += -lum[0];
dst[0] = (sum + 4) >> 3; // This needs to be clipped at 0 and 255: cm[(sum + 4) >> 3];
lum_m4++;
lum_m3++;
lum_m2++;
lum_m1++;
lum++;
dst++;
}
deinterlace_line_vfir (dst, lum_m4, lum_m3, lum_m2, lum_m1, lum, size);
}
static void