| e4852fb3 |
/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "mp_msg.h"
#include "cpudetect.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
struct metrics {
/* difference: total, even lines, odd lines */
int d, e, o;
/* noise: temporal, spacial (current), spacial (past) */
int t, s, p;
};
struct frameinfo {
/* peak, relative, mean */
struct metrics p, r, m;
};
struct vf_priv_s {
struct frameinfo fi[2];
mp_image_t *dmpi;
int first;
int drop, lastdrop, dropnext;
int inframes, outframes;
};
enum {
F_DROP,
F_MERGE,
F_NEXT,
F_SHOW
};
#if HAVE_MMX && HAVE_EBX_AVAILABLE
static void block_diffs_MMX(struct metrics *m, unsigned char *old, unsigned char *new, int os, int ns)
{
int i;
short out[24]; // output buffer for the partial metrics from the mmx code
__asm__ (
"movl $4, %%ecx \n\t"
"pxor %%mm4, %%mm4 \n\t" // 4 even difference sums
"pxor %%mm5, %%mm5 \n\t" // 4 odd difference sums
"pxor %%mm7, %%mm7 \n\t" // all zeros
ASMALIGN(4)
"1: \n\t"
// Even difference
"movq (%%"REG_S"), %%mm0 \n\t"
"movq (%%"REG_S"), %%mm2 \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"movq (%%"REG_D"), %%mm1 \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"psubusb %%mm1, %%mm2 \n\t"
"psubusb %%mm0, %%mm1 \n\t"
"movq %%mm2, %%mm0 \n\t"
"movq %%mm1, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm3 \n\t"
"paddw %%mm0, %%mm4 \n\t"
"paddw %%mm1, %%mm4 \n\t"
"paddw %%mm2, %%mm4 \n\t"
"paddw %%mm3, %%mm4 \n\t"
// Odd difference
"movq (%%"REG_S"), %%mm0 \n\t"
"movq (%%"REG_S"), %%mm2 \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"movq (%%"REG_D"), %%mm1 \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"psubusb %%mm1, %%mm2 \n\t"
"psubusb %%mm0, %%mm1 \n\t"
"movq %%mm2, %%mm0 \n\t"
"movq %%mm1, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm3 \n\t"
"paddw %%mm0, %%mm5 \n\t"
"paddw %%mm1, %%mm5 \n\t"
"paddw %%mm2, %%mm5 \n\t"
"paddw %%mm3, %%mm5 \n\t"
"decl %%ecx \n\t"
"jnz 1b \n\t"
"movq %%mm4, (%%"REG_d") \n\t"
"movq %%mm5, 8(%%"REG_d") \n\t"
:
: "S" (old), "D" (new), "a" (os), "b" (ns), "d" (out)
: "memory"
);
m->e = out[0]+out[1]+out[2]+out[3];
m->o = out[4]+out[5]+out[6]+out[7];
m->d = m->e + m->o;
__asm__ (
// First loop to measure first four columns
"movl $4, %%ecx \n\t"
"pxor %%mm4, %%mm4 \n\t" // Past spacial noise
"pxor %%mm5, %%mm5 \n\t" // Temporal noise
"pxor %%mm6, %%mm6 \n\t" // Current spacial noise
ASMALIGN(4)
"2: \n\t"
"movq (%%"REG_S"), %%mm0 \n\t"
"movq (%%"REG_S",%%"REG_a"), %%mm1 \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"movq (%%"REG_D"), %%mm2 \n\t"
"movq (%%"REG_D",%%"REG_b"), %%mm3 \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"punpcklbw %%mm7, %%mm0 \n\t"
"punpcklbw %%mm7, %%mm1 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t"
"punpcklbw %%mm7, %%mm3 \n\t"
"paddw %%mm1, %%mm4 \n\t"
"paddw %%mm1, %%mm5 \n\t"
"paddw %%mm3, %%mm6 \n\t"
"psubw %%mm0, %%mm4 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"psubw %%mm2, %%mm6 \n\t"
"decl %%ecx \n\t"
"jnz 2b \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm0, %%mm2 \n\t"
"movq %%mm0, %%mm3 \n\t"
"pcmpgtw %%mm4, %%mm1 \n\t"
"pcmpgtw %%mm5, %%mm2 \n\t"
"pcmpgtw %%mm6, %%mm3 \n\t"
"pxor %%mm1, %%mm4 \n\t"
"pxor %%mm2, %%mm5 \n\t"
"pxor %%mm3, %%mm6 \n\t"
"psubw %%mm1, %%mm4 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"psubw %%mm3, %%mm6 \n\t"
"movq %%mm4, (%%"REG_d") \n\t"
"movq %%mm5, 16(%%"REG_d") \n\t"
"movq %%mm6, 32(%%"REG_d") \n\t"
"mov %%"REG_a", %%"REG_c" \n\t"
"shl $3, %%"REG_c" \n\t"
"sub %%"REG_c", %%"REG_S" \n\t"
"mov %%"REG_b", %%"REG_c" \n\t"
"shl $3, %%"REG_c" \n\t"
"sub %%"REG_c", %%"REG_D" \n\t"
// Second loop for the last four columns
"movl $4, %%ecx \n\t"
"pxor %%mm4, %%mm4 \n\t"
"pxor %%mm5, %%mm5 \n\t"
"pxor %%mm6, %%mm6 \n\t"
ASMALIGN(4)
"3: \n\t"
"movq (%%"REG_S"), %%mm0 \n\t"
"movq (%%"REG_S",%%"REG_a"), %%mm1 \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"add %%"REG_a", %%"REG_S" \n\t"
"movq (%%"REG_D"), %%mm2 \n\t"
"movq (%%"REG_D",%%"REG_b"), %%mm3 \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"add %%"REG_b", %%"REG_D" \n\t"
"punpckhbw %%mm7, %%mm0 \n\t"
"punpckhbw %%mm7, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm2 \n\t"
"punpckhbw %%mm7, %%mm3 \n\t"
"paddw %%mm1, %%mm4 \n\t"
"paddw %%mm1, %%mm5 \n\t"
"paddw %%mm3, %%mm6 \n\t"
"psubw %%mm0, %%mm4 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"psubw %%mm2, %%mm6 \n\t"
"decl %%ecx \n\t"
"jnz 3b \n\t"
"movq %%mm0, %%mm1 \n\t"
"movq %%mm0, %%mm2 \n\t"
"movq %%mm0, %%mm3 \n\t"
"pcmpgtw %%mm4, %%mm1 \n\t"
"pcmpgtw %%mm5, %%mm2 \n\t"
"pcmpgtw %%mm6, %%mm3 \n\t"
"pxor %%mm1, %%mm4 \n\t"
"pxor %%mm2, %%mm5 \n\t"
"pxor %%mm3, %%mm6 \n\t"
"psubw %%mm1, %%mm4 \n\t"
"psubw %%mm2, %%mm5 \n\t"
"psubw %%mm3, %%mm6 \n\t"
"movq %%mm4, 8(%%"REG_d") \n\t"
"movq %%mm5, 24(%%"REG_d") \n\t"
"movq %%mm6, 40(%%"REG_d") \n\t"
"emms \n\t"
:
: "S" (old), "D" (new), "a" ((long)os), "b" ((long)ns), "d" (out)
: "memory"
);
m->p = m->t = m->s = 0;
for (i=0; i<8; i++) {
m->p += out[i];
m->t += out[8+i];
m->s += out[16+i];
}
//printf("e=%d o=%d d=%d p=%d t=%d s=%d\n", m->e, m->o, m->d, m->p, m->t, m->s);
}
#endif
//#define MAG(a) ((a)*(a))
//#define MAG(a) (abs(a))
#define MAG(a) (((a)^((a)>>31))-((a)>>31))
//#define LOWPASS(s) (((s)[-2] + 4*(s)[-1] + 6*(s)[0] + 4*(s)[1] + (s)[2])>>4)
//#define LOWPASS(s) (((s)[-1] + 2*(s)[0] + (s)[1])>>2)
#define LOWPASS(s) ((s)[0])
static void block_diffs_C(struct metrics *m, unsigned char *old, unsigned char *new, int os, int ns)
{
int x, y, e=0, o=0, s=0, p=0, t=0;
unsigned char *oldp, *newp;
m->s = m->p = m->t = 0;
for (x = 8; x; x--) {
oldp = old++;
newp = new++;
s = p = t = 0;
for (y = 4; y; y--) {
e += MAG(newp[0]-oldp[0]);
o += MAG(newp[ns]-oldp[os]);
s += newp[ns]-newp[0];
p += oldp[os]-oldp[0];
t += oldp[os]-newp[0];
oldp += os<<1;
newp += ns<<1;
}
m->s += MAG(s);
m->p += MAG(p);
m->t += MAG(t);
}
m->e = e;
m->o = o;
m->d = e+o;
}
static void (*block_diffs)(struct metrics *, unsigned char *, unsigned char *, int, int);
#define MAXUP(a,b) ((a) = ((a)>(b)) ? (a) : (b))
static void diff_planes(struct frameinfo *fi,
unsigned char *old, unsigned char *new, int w, int h, int os, int ns)
{
int x, y;
struct metrics l;
struct metrics *peak=&fi->p, *rel=&fi->r, *mean=&fi->m;
memset(peak, 0, sizeof(struct metrics));
memset(rel, 0, sizeof(struct metrics));
memset(mean, 0, sizeof(struct metrics));
for (y = 0; y < h-7; y += 8) {
for (x = 8; x < w-8-7; x += 8) {
block_diffs(&l, old+x+y*os, new+x+y*ns, os, ns);
mean->d += l.d;
mean->e += l.e;
mean->o += l.o;
mean->s += l.s;
mean->p += l.p;
mean->t += l.t;
MAXUP(peak->d, l.d);
MAXUP(peak->e, l.e);
MAXUP(peak->o, l.o);
MAXUP(peak->s, l.s);
MAXUP(peak->p, l.p);
MAXUP(peak->t, l.t);
MAXUP(rel->e, l.e-l.o);
MAXUP(rel->o, l.o-l.e);
MAXUP(rel->s, l.s-l.t);
MAXUP(rel->p, l.p-l.t);
MAXUP(rel->t, l.t-l.p);
MAXUP(rel->d, l.t-l.s); /* hack */
}
}
x = (w/8-2)*(h/8);
mean->d /= x;
mean->e /= x;
mean->o /= x;
mean->s /= x;
mean->p /= x;
mean->t /= x;
}
static void diff_fields(struct frameinfo *fi, mp_image_t *old, mp_image_t *new)
{
diff_planes(fi, old->planes[0], new->planes[0],
new->w, new->h, old->stride[0], new->stride[0]);
}
static void stats(struct frameinfo *f)
{
mp_msg(MSGT_VFILTER, MSGL_V, " pd=%d re=%d ro=%d rp=%d rt=%d rs=%d rd=%d pp=%d pt=%d ps=%d\r",
f->p.d, f->r.e, f->r.o, f->r.p, f->r.t, f->r.s, f->r.d, f->p.p, f->p.t, f->p.s);
}
static int foo(struct vf_priv_s *p, mp_image_t *new, mp_image_t *cur)
{
struct frameinfo *f = p->fi;
f[0] = f[1];
diff_fields(&f[1], cur, new);
stats(&f[1]);
// Immediately drop this frame if it's already been used.
if (p->dropnext) {
p->dropnext = 0;
return F_DROP;
}
// Sometimes a pulldown frame comes all by itself, so both
// its top and bottom field are duplicates from the adjacent
// two frames. We can just drop such a frame, but we
// immediately show the next frame instead to keep the frame
// drops evenly spaced during normal 3:2 pulldown sequences.
if ((3*f[1].r.o < f[1].r.e) && (f[1].r.s < f[1].r.d)) {
p->dropnext = 1;
return F_NEXT;
}
// If none of these conditions hold, we will consider the frame
// progressive and just show it as-is.
if (!( (3*f[0].r.e < f[0].r.o) ||
((2*f[0].r.d < f[0].r.s) && (f[0].r.s > 1200)) ||
((2*f[1].r.t < f[1].r.p) && (f[1].r.p > 1200)) ))
return F_SHOW;
// Otherwise, we have to decide whether to merge or drop.
// If the noise metric only increases minimally, we're off
// to a good start...
if (((2*f[1].r.t < 3*f[1].r.p) && (f[1].r.t < 3600)) ||
(f[1].r.t < 900) || (f[1].r.d < 900)) {
// ...and if noise decreases or the duplicate even field
// is detected, we go ahead with the merge.
if ((3*f[0].r.e < f[0].r.o) || (2*f[1].r.t < f[1].r.p)) {
p->dropnext = 1;
return F_MERGE;
}
}
return F_DROP;
}
static void copy_image(mp_image_t *dmpi, mp_image_t *mpi, int field)
{
switch (field) {
case 0:
my_memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
dmpi->stride[0]*2, mpi->stride[0]*2);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
my_memcpy_pic(dmpi->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, mpi->stride[1]*2);
my_memcpy_pic(dmpi->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, mpi->stride[2]*2);
}
break;
case 1:
my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
dmpi->stride[0]*2, mpi->stride[0]*2);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
mpi->planes[1]+mpi->stride[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, mpi->stride[1]*2);
my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
mpi->planes[2]+mpi->stride[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, mpi->stride[2]*2);
}
break;
case 2:
memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
dmpi->stride[0], mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(dmpi->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[1], mpi->stride[1]);
memcpy_pic(dmpi->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
dmpi->stride[2], mpi->stride[2]);
}
break;
}
}
static int do_put_image(struct vf_instance *vf, mp_image_t *dmpi)
{
struct vf_priv_s *p = vf->priv;
int dropflag=0;
if (!p->dropnext) switch (p->drop) {
case 0:
dropflag = 0;
break;
case 1:
dropflag = (++p->lastdrop >= 5);
break;
case 2:
dropflag = (++p->lastdrop >= 5) && (4*p->inframes <= 5*p->outframes);
break;
}
if (dropflag) {
//mp_msg(MSGT_VFILTER, MSGL_V, "drop! [%d/%d=%g]\n",
// p->outframes, p->inframes, (float)p->outframes/p->inframes);
mp_msg(MSGT_VFILTER, MSGL_V, "!");
p->lastdrop = 0;
return 0;
}
p->outframes++;
return vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
{
int ret=0;
struct vf_priv_s *p = vf->priv;
p->inframes++;
if (p->first) { /* hack */
p->first = 0;
return 1;
}
if (!p->dmpi) p->dmpi = vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
mpi->width, mpi->height);
/* FIXME -- not correct, off by one frame! */
p->dmpi->qscale = mpi->qscale;
p->dmpi->qstride = mpi->qstride;
p->dmpi->qscale_type = mpi->qscale_type;
switch (foo(p, mpi, p->dmpi)) {
case F_DROP:
copy_image(p->dmpi, mpi, 2);
ret = 0;
p->lastdrop = 0;
mp_msg(MSGT_VFILTER, MSGL_V, "DROP\n");
break;
case F_MERGE:
copy_image(p->dmpi, mpi, 0);
ret = do_put_image(vf, p->dmpi);
copy_image(p->dmpi, mpi, 1);
mp_msg(MSGT_VFILTER, MSGL_V, "MERGE\n");
p->dmpi = NULL;
break;
case F_NEXT:
copy_image(p->dmpi, mpi, 2);
ret = do_put_image(vf, p->dmpi);
mp_msg(MSGT_VFILTER, MSGL_V, "NEXT\n");
p->dmpi = NULL;
break;
case F_SHOW:
ret = do_put_image(vf, p->dmpi);
copy_image(p->dmpi, mpi, 2);
mp_msg(MSGT_VFILTER, MSGL_V, "OK\n");
p->dmpi = NULL;
break;
}
return ret;
}
static int query_format(struct vf_instance *vf, unsigned int fmt)
{
switch (fmt) {
case IMGFMT_YV12:
case IMGFMT_IYUV:
case IMGFMT_I420:
return vf_next_query_format(vf, fmt);
}
return 0;
}
static void uninit(struct vf_instance *vf)
{
free(vf->priv);
}
static int vf_open(vf_instance_t *vf, char *args)
{
struct vf_priv_s *p;
vf->put_image = put_image;
vf->query_format = query_format;
vf->uninit = uninit;
vf->default_reqs = VFCAP_ACCEPT_STRIDE;
vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
p->drop = 0;
p->first = 1;
if (args) sscanf(args, "%d", &p->drop);
block_diffs = block_diffs_C;
#if HAVE_MMX && HAVE_EBX_AVAILABLE
if(gCpuCaps.hasMMX) block_diffs = block_diffs_MMX;
#endif
return 1;
}
const vf_info_t vf_info_ivtc = {
"inverse telecine, take 2",
"ivtc",
"Rich Felker",
"",
vf_open,
NULL
}; |