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gstreamer/gst/deinterlace2/tvtime/greedy.c

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/*
*
* GStreamer
* Copyright (c) 2000 Tom Barry All rights reserved.
* mmx.h port copyright (c) 2002 Billy Biggs <vektor@dumbterm.net>.
*
* Copyright (C) 2008 Sebastian Dröge <slomo@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Relicensed for GStreamer from GPL to LGPL with permit from Tom Barry
* and Billy Biggs.
* See: http://bugzilla.gnome.org/show_bug.cgi?id=163578
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "_stdint.h"
#include "gstdeinterlace2.h"
#include <string.h>
#define GST_TYPE_DEINTERLACE_METHOD_GREEDY_L (gst_deinterlace_method_greedy_l_get_type ())
#define GST_IS_DEINTERLACE_METHOD_GREEDY_L(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_DEINTERLACE_METHOD_GREEDY_L))
#define GST_IS_DEINTERLACE_METHOD_GREEDY_L_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_DEINTERLACE_METHOD_GREEDY_L))
#define GST_DEINTERLACE_METHOD_GREEDY_L_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_DEINTERLACE_METHOD_GREEDY_L, GstDeinterlaceMethodGreedyLClass))
#define GST_DEINTERLACE_METHOD_GREEDY_L(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_DEINTERLACE_METHOD_GREEDY_L, GstDeinterlaceMethodGreedyL))
#define GST_DEINTERLACE_METHOD_GREEDY_L_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_DEINTERLACE_METHOD_GREEDY_L, GstDeinterlaceMethodGreedyLClass))
#define GST_DEINTERLACE_METHOD_GREEDY_L_CAST(obj) ((GstDeinterlaceMethodGreedyL*)(obj))
GType gst_deinterlace_method_greedy_l_get_type (void);
typedef struct
{
GstDeinterlaceMethod parent;
guint max_comb;
} GstDeinterlaceMethodGreedyL;
typedef struct
{
GstDeinterlaceMethodClass parent_class;
void (*scanline) (GstDeinterlaceMethodGreedyL * self, uint8_t * L2,
uint8_t * L1, uint8_t * L3, uint8_t * L2P, uint8_t * Dest, int size);
} GstDeinterlaceMethodGreedyLClass;
// This is a simple lightweight DeInterlace method that uses little CPU time
// but gives very good results for low or intermedite motion.
// It defers frames by one field, but that does not seem to produce noticeable
// lip sync problems.
//
// The method used is to take either the older or newer weave pixel depending
// upon which give the smaller comb factor, and then clip to avoid large damage
// when wrong.
//
// I'd intended this to be part of a larger more elaborate method added to
// Blended Clip but this give too good results for the CPU to ignore here.
static inline void
deinterlace_greedy_packed422_scanline_c (GstDeinterlaceMethodGreedyL * self,
uint8_t * m0, uint8_t * t1,
uint8_t * b1, uint8_t * m2, uint8_t * output, int width)
{
int avg, l2_diff, lp2_diff, max, min, best;
guint max_comb = self->max_comb;
// L2 == m0
// L1 == t1
// L3 == b1
// LP2 == m2
while (width--) {
avg = (*t1 + *b1) / 2;
l2_diff = ABS (*m0 - avg);
lp2_diff = ABS (*m2 - avg);
if (l2_diff > lp2_diff)
best = *m2;
else
best = *m0;
max = MAX (*t1, *b1);
min = MIN (*t1, *b1);
if (max < 256 - max_comb)
max += max_comb;
else
max = 255;
if (min > max_comb)
min -= max_comb;
else
min = 0;
*output = CLAMP (best, min, max);
// Advance to the next set of pixels.
output += 1;
m0 += 1;
t1 += 1;
b1 += 1;
m2 += 1;
}
}
#ifdef BUILD_X86_ASM
#include "mmx.h"
static void
deinterlace_greedy_packed422_scanline_mmx (GstDeinterlaceMethodGreedyL * self,
uint8_t * m0, uint8_t * t1,
uint8_t * b1, uint8_t * m2, uint8_t * output, int width)
{
mmx_t MaxComb;
mmx_t ShiftMask;
// How badly do we let it weave? 0-255
MaxComb.ub[0] = self->max_comb;
MaxComb.ub[1] = self->max_comb;
MaxComb.ub[2] = self->max_comb;
MaxComb.ub[3] = self->max_comb;
MaxComb.ub[4] = self->max_comb;
MaxComb.ub[5] = self->max_comb;
MaxComb.ub[6] = self->max_comb;
MaxComb.ub[7] = self->max_comb;
ShiftMask.ub[0] = 0x7f;
ShiftMask.ub[1] = 0x7f;
ShiftMask.ub[2] = 0x7f;
ShiftMask.ub[3] = 0x7f;
ShiftMask.ub[4] = 0x7f;
ShiftMask.ub[5] = 0x7f;
ShiftMask.ub[6] = 0x7f;
ShiftMask.ub[7] = 0x7f;
// L2 == m0
// L1 == t1
// L3 == b1
// LP2 == m2
movq_m2r (MaxComb, mm6);
for (; width > 7; width -= 8) {
movq_m2r (*t1, mm1); // L1
movq_m2r (*m0, mm2); // L2
movq_m2r (*b1, mm3); // L3
movq_m2r (*m2, mm0); // LP2
// average L1 and L3 leave result in mm4
movq_r2r (mm1, mm4); // L1
movq_r2r (mm3, mm5); // L3
psrlw_i2r (1, mm4); // L1/2
pand_m2r (ShiftMask, mm4);
psrlw_i2r (1, mm5); // L3/2
pand_m2r (ShiftMask, mm5);
paddusb_r2r (mm5, mm4); // (L1 + L3) / 2
// get abs value of possible L2 comb
movq_r2r (mm2, mm7); // L2
psubusb_r2r (mm4, mm7); // L2 - avg
movq_r2r (mm4, mm5); // avg
psubusb_r2r (mm2, mm5); // avg - L2
por_r2r (mm7, mm5); // abs(avg-L2)
// get abs value of possible LP2 comb
movq_r2r (mm0, mm7); // LP2
psubusb_r2r (mm4, mm7); // LP2 - avg
psubusb_r2r (mm0, mm4); // avg - LP2
por_r2r (mm7, mm4); // abs(avg-LP2)
// use L2 or LP2 depending upon which makes smaller comb
psubusb_r2r (mm5, mm4); // see if it goes to zero
psubusb_r2r (mm5, mm5); // 0
pcmpeqb_r2r (mm5, mm4); // if (mm4=0) then FF else 0
pcmpeqb_r2r (mm4, mm5); // opposite of mm4
// if Comb(LP2) <= Comb(L2) then mm4=ff, mm5=0 else mm4=0, mm5 = 55
pand_r2r (mm2, mm5); // use L2 if mm5 == ff, else 0
pand_r2r (mm0, mm4); // use LP2 if mm4 = ff, else 0
por_r2r (mm5, mm4); // may the best win
// Now lets clip our chosen value to be not outside of the range
// of the high/low range L1-L3 by more than abs(L1-L3)
// This allows some comb but limits the damages and also allows more
// detail than a boring oversmoothed clip.
movq_r2r (mm1, mm2); // copy L1
psubusb_r2r (mm3, mm2); // - L3, with saturation
paddusb_r2r (mm3, mm2); // now = Max(L1,L3)
pcmpeqb_r2r (mm7, mm7); // all ffffffff
psubusb_r2r (mm1, mm7); // - L1
paddusb_r2r (mm7, mm3); // add, may sat at fff..
psubusb_r2r (mm7, mm3); // now = Min(L1,L3)
// allow the value to be above the high or below the low by amt of MaxComb
paddusb_r2r (mm6, mm2); // increase max by diff
psubusb_r2r (mm6, mm3); // lower min by diff
psubusb_r2r (mm3, mm4); // best - Min
paddusb_r2r (mm3, mm4); // now = Max(best,Min(L1,L3)
pcmpeqb_r2r (mm7, mm7); // all ffffffff
psubusb_r2r (mm4, mm7); // - Max(best,Min(best,L3)
paddusb_r2r (mm7, mm2); // add may sat at FFF..
psubusb_r2r (mm7, mm2); // now = Min( Max(best, Min(L1,L3), L2 )=L2 clipped
movq_r2m (mm2, *output); // move in our clipped best
// Advance to the next set of pixels.
output += 8;
m0 += 8;
t1 += 8;
b1 += 8;
m2 += 8;
}
emms ();
if (width > 0)
deinterlace_greedy_packed422_scanline_c (self, m0, t1, b1, m2, output,
width);
}
#include "sse.h"
static void
deinterlace_greedy_packed422_scanline_mmxext (GstDeinterlaceMethodGreedyL *
self, uint8_t * m0, uint8_t * t1, uint8_t * b1, uint8_t * m2,
uint8_t * output, int width)
{
mmx_t MaxComb;
// How badly do we let it weave? 0-255
MaxComb.ub[0] = self->max_comb;
MaxComb.ub[1] = self->max_comb;
MaxComb.ub[2] = self->max_comb;
MaxComb.ub[3] = self->max_comb;
MaxComb.ub[4] = self->max_comb;
MaxComb.ub[5] = self->max_comb;
MaxComb.ub[6] = self->max_comb;
MaxComb.ub[7] = self->max_comb;
// L2 == m0
// L1 == t1
// L3 == b1
// LP2 == m2
movq_m2r (MaxComb, mm6);
for (; width > 7; width -= 8) {
movq_m2r (*t1, mm1); // L1
movq_m2r (*m0, mm2); // L2
movq_m2r (*b1, mm3); // L3
movq_m2r (*m2, mm0); // LP2
// average L1 and L3 leave result in mm4
movq_r2r (mm1, mm4); // L1
pavgb_r2r (mm3, mm4); // (L1 + L3)/2
// get abs value of possible L2 comb
movq_r2r (mm2, mm7); // L2
psubusb_r2r (mm4, mm7); // L2 - avg
movq_r2r (mm4, mm5); // avg
psubusb_r2r (mm2, mm5); // avg - L2
por_r2r (mm7, mm5); // abs(avg-L2)
// get abs value of possible LP2 comb
movq_r2r (mm0, mm7); // LP2
psubusb_r2r (mm4, mm7); // LP2 - avg
psubusb_r2r (mm0, mm4); // avg - LP2
por_r2r (mm7, mm4); // abs(avg-LP2)
// use L2 or LP2 depending upon which makes smaller comb
psubusb_r2r (mm5, mm4); // see if it goes to zero
pxor_r2r (mm5, mm5); // 0
pcmpeqb_r2r (mm5, mm4); // if (mm4=0) then FF else 0
pcmpeqb_r2r (mm4, mm5); // opposite of mm4
// if Comb(LP2) <= Comb(L2) then mm4=ff, mm5=0 else mm4=0, mm5 = 55
pand_r2r (mm2, mm5); // use L2 if mm5 == ff, else 0
pand_r2r (mm0, mm4); // use LP2 if mm4 = ff, else 0
por_r2r (mm5, mm4); // may the best win
// Now lets clip our chosen value to be not outside of the range
// of the high/low range L1-L3 by more than abs(L1-L3)
// This allows some comb but limits the damages and also allows more
// detail than a boring oversmoothed clip.
movq_r2r (mm1, mm2); // copy L1
pmaxub_r2r (mm3, mm2); // now = Max(L1,L3)
pminub_r2r (mm1, mm3); // now = Min(L1,L3)
// allow the value to be above the high or below the low by amt of MaxComb
paddusb_r2r (mm6, mm2); // increase max by diff
psubusb_r2r (mm6, mm3); // lower min by diff
pmaxub_r2r (mm3, mm4); // now = Max(best,Min(L1,L3)
pminub_r2r (mm4, mm2); // now = Min( Max(best, Min(L1,L3)), L2 )=L2 clipped
movq_r2m (mm2, *output); // move in our clipped best
// Advance to the next set of pixels.
output += 8;
m0 += 8;
t1 += 8;
b1 += 8;
m2 += 8;
}
emms ();
if (width > 0)
deinterlace_greedy_packed422_scanline_c (self, m0, t1, b1, m2, output,
width);
}
#endif
static void
deinterlace_frame_di_greedy (GstDeinterlaceMethod * d_method,
GstDeinterlace2 * object, GstBuffer * outbuf)
{
GstDeinterlaceMethodGreedyL *self =
GST_DEINTERLACE_METHOD_GREEDY_L (d_method);
GstDeinterlaceMethodGreedyLClass *klass =
GST_DEINTERLACE_METHOD_GREEDY_L_GET_CLASS (self);
int InfoIsOdd = 0;
int Line;
unsigned int Pitch = object->field_stride;
unsigned char *L1; // ptr to Line1, of 3
unsigned char *L2; // ptr to Line2, the weave line
unsigned char *L3; // ptr to Line3
unsigned char *L2P; // ptr to prev Line2
unsigned char *Dest = GST_BUFFER_DATA (outbuf);
// copy first even line no matter what, and the first odd line if we're
// processing an EVEN field. (note diff from other deint rtns.)
if (object->field_history[object->history_count - 1].flags ==
PICTURE_INTERLACED_BOTTOM) {
InfoIsOdd = 1;
L1 = GST_BUFFER_DATA (object->field_history[object->history_count - 2].buf);
L2 = GST_BUFFER_DATA (object->field_history[object->history_count - 1].buf);
L3 = L1 + Pitch;
L2P =
GST_BUFFER_DATA (object->field_history[object->history_count - 3].buf);
// copy first even line
oil_memcpy (Dest, L1, object->row_stride);
Dest += object->row_stride;
} else {
InfoIsOdd = 0;
L1 = GST_BUFFER_DATA (object->field_history[object->history_count - 2].buf);
L2 = GST_BUFFER_DATA (object->field_history[object->history_count -
1].buf) + Pitch;
L3 = L1 + Pitch;
L2P =
GST_BUFFER_DATA (object->field_history[object->history_count - 3].buf) +
Pitch;
// copy first even line
oil_memcpy (Dest, GST_BUFFER_DATA (object->field_history[0].buf),
object->row_stride);
Dest += object->row_stride;
// then first odd line
oil_memcpy (Dest, L1, object->row_stride);
Dest += object->row_stride;
}
for (Line = 0; Line < (object->field_height - 1); ++Line) {
klass->scanline (self, L2, L1, L3, L2P, Dest, object->row_stride);
Dest += object->row_stride;
oil_memcpy (Dest, L3, object->row_stride);
Dest += object->row_stride;
L1 += Pitch;
L2 += Pitch;
L3 += Pitch;
L2P += Pitch;
}
if (InfoIsOdd) {
oil_memcpy (Dest, L2, object->row_stride);
}
}
G_DEFINE_TYPE (GstDeinterlaceMethodGreedyL, gst_deinterlace_method_greedy_l,
GST_TYPE_DEINTERLACE_METHOD);
enum
{
ARG_0,
ARG_MAX_COMB
};
static void
gst_deinterlace_method_greedy_l_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstDeinterlaceMethodGreedyL *self = GST_DEINTERLACE_METHOD_GREEDY_L (object);
switch (prop_id) {
case ARG_MAX_COMB:
self->max_comb = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gst_deinterlace_method_greedy_l_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstDeinterlaceMethodGreedyL *self = GST_DEINTERLACE_METHOD_GREEDY_L (object);
switch (prop_id) {
case ARG_MAX_COMB:
g_value_set_uint (value, self->max_comb);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gst_deinterlace_method_greedy_l_class_init (GstDeinterlaceMethodGreedyLClass *
klass)
{
GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
GObjectClass *gobject_class = (GObjectClass *) klass;
#ifdef BUILD_X86_ASM
guint cpu_flags = oil_cpu_get_flags ();
#endif
gobject_class->set_property = gst_deinterlace_method_greedy_l_set_property;
gobject_class->get_property = gst_deinterlace_method_greedy_l_get_property;
g_object_class_install_property (gobject_class, ARG_MAX_COMB,
g_param_spec_uint ("max-comb",
"Max comb",
"Max Comb", 0, 255, 15, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)
);
dim_class->fields_required = 4;
dim_class->deinterlace_frame = deinterlace_frame_di_greedy;
dim_class->name = "Motion Adaptive: Simple Detection";
dim_class->nick = "greedyl";
dim_class->latency = 1;
#ifdef BUILD_X86_ASM
if (cpu_flags & OIL_IMPL_FLAG_MMXEXT) {
klass->scanline = deinterlace_greedy_packed422_scanline_mmxext;
} else if (cpu_flags & OIL_IMPL_FLAG_MMX) {
klass->scanline = deinterlace_greedy_packed422_scanline_mmx;
} else {
klass->scanline = deinterlace_greedy_packed422_scanline_c;
}
#else
klass->scanline = deinterlace_greedy_packed422_scanline_c;
#endif
}
static void
gst_deinterlace_method_greedy_l_init (GstDeinterlaceMethodGreedyL * self)
{
self->max_comb = 15;
}
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