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mpv/libmpcodecs/vf_kerndeint.c

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/*
* Original AVISynth Filter Copyright (C) 2003 Donald A. Graft
* Adapted to MPlayer by Tobias Diedrich
*
* 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 <inttypes.h>
#include <math.h>
#include "mp_msg.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
//===========================================================================//
struct vf_priv_s {
int frame;
int map;
int order;
int thresh;
int sharp;
int twoway;
int do_deinterlace;
};
/***************************************************************************/
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static void uninit(struct vf_instance *vf)
{
free(vf->priv);
}
static inline int IsRGB(mp_image_t *mpi)
{
return mpi->imgfmt == IMGFMT_RGB;
}
static inline int IsYUY2(mp_image_t *mpi)
{
return mpi->imgfmt == IMGFMT_YUY2;
}
#define PLANAR_Y 0
#define PLANAR_U 1
#define PLANAR_V 2
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
int cw= mpi->w >> mpi->chroma_x_shift;
int ch= mpi->h >> mpi->chroma_y_shift;
int W = mpi->w, H = mpi->h;
const unsigned char *prvp, *prvpp, *prvpn, *prvpnn, *prvppp, *prvp4p, *prvp4n;
const unsigned char *srcp_saved;
const unsigned char *srcp, *srcpp, *srcpn, *srcpnn, *srcppp, *srcp3p, *srcp3n, *srcp4p, *srcp4n;
unsigned char *dstp, *dstp_saved;
int src_pitch;
int psrc_pitch;
int dst_pitch;
int x, y, z;
int n = vf->priv->frame++;
int val, hi, lo, w, h;
double valf;
int plane;
int threshold = vf->priv->thresh;
int order = vf->priv->order;
int map = vf->priv->map;
int sharp = vf->priv->sharp;
int twoway = vf->priv->twoway;
mp_image_t *dmpi, *pmpi;
if(!vf->priv->do_deinterlace)
return vf_next_put_image(vf, mpi, pts);
dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_IP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
pmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w,mpi->h);
if(!dmpi) return 0;
for (z=0; z<mpi->num_planes; z++) {
if (z == 0) plane = PLANAR_Y;
else if (z == 1) plane = PLANAR_U;
else plane = PLANAR_V;
h = plane == PLANAR_Y ? H : ch;
w = plane == PLANAR_Y ? W : cw;
srcp = srcp_saved = mpi->planes[z];
src_pitch = mpi->stride[z];
psrc_pitch = pmpi->stride[z];
dstp = dstp_saved = dmpi->planes[z];
dst_pitch = dmpi->stride[z];
srcp = srcp_saved + (1-order) * src_pitch;
dstp = dstp_saved + (1-order) * dst_pitch;
for (y=0; y<h; y+=2) {
fast_memcpy(dstp, srcp, w);
srcp += 2*src_pitch;
dstp += 2*dst_pitch;
}
// Copy through the lines that will be missed below.
fast_memcpy(dstp_saved + order*dst_pitch, srcp_saved + (1-order)*src_pitch, w);
fast_memcpy(dstp_saved + (2+order)*dst_pitch, srcp_saved + (3-order)*src_pitch, w);
fast_memcpy(dstp_saved + (h-2+order)*dst_pitch, srcp_saved + (h-1-order)*src_pitch, w);
fast_memcpy(dstp_saved + (h-4+order)*dst_pitch, srcp_saved + (h-3-order)*src_pitch, w);
/* For the other field choose adaptively between using the previous field
or the interpolant from the current field. */
prvp = pmpi->planes[z] + 5*psrc_pitch - (1-order)*psrc_pitch;
prvpp = prvp - psrc_pitch;
prvppp = prvp - 2*psrc_pitch;
prvp4p = prvp - 4*psrc_pitch;
prvpn = prvp + psrc_pitch;
prvpnn = prvp + 2*psrc_pitch;
prvp4n = prvp + 4*psrc_pitch;
srcp = srcp_saved + 5*src_pitch - (1-order)*src_pitch;
srcpp = srcp - src_pitch;
srcppp = srcp - 2*src_pitch;
srcp3p = srcp - 3*src_pitch;
srcp4p = srcp - 4*src_pitch;
srcpn = srcp + src_pitch;
srcpnn = srcp + 2*src_pitch;
srcp3n = srcp + 3*src_pitch;
srcp4n = srcp + 4*src_pitch;
dstp = dstp_saved + 5*dst_pitch - (1-order)*dst_pitch;
for (y = 5 - (1-order); y <= h - 5 - (1-order); y+=2)
{
for (x = 0; x < w; x++)
{
if ((threshold == 0) || (n == 0) ||
(abs((int)prvp[x] - (int)srcp[x]) > threshold) ||
(abs((int)prvpp[x] - (int)srcpp[x]) > threshold) ||
(abs((int)prvpn[x] - (int)srcpn[x]) > threshold))
{
if (map == 1)
{
int g = x & ~3;
if (IsRGB(mpi) == 1)
{
dstp[g++] = 255;
dstp[g++] = 255;
dstp[g++] = 255;
dstp[g] = 255;
x = g;
}
else if (IsYUY2(mpi) == 1)
{
dstp[g++] = 235;
dstp[g++] = 128;
dstp[g++] = 235;
dstp[g] = 128;
x = g;
}
else
{
if (plane == PLANAR_Y) dstp[x] = 235;
else dstp[x] = 128;
}
}
else
{
if (IsRGB(mpi))
{
hi = 255;
lo = 0;
}
else if (IsYUY2(mpi))
{
hi = (x & 1) ? 240 : 235;
lo = 16;
}
else
{
hi = (plane == PLANAR_Y) ? 235 : 240;
lo = 16;
}
if (sharp == 1)
{
if (twoway == 1)
valf = + 0.526*((int)srcpp[x] + (int)srcpn[x])
+ 0.170*((int)srcp[x] + (int)prvp[x])
- 0.116*((int)srcppp[x] + (int)srcpnn[x] + (int)prvppp[x] + (int)prvpnn[x])
- 0.026*((int)srcp3p[x] + (int)srcp3n[x])
+ 0.031*((int)srcp4p[x] + (int)srcp4n[x] + (int)prvp4p[x] + (int)prvp4n[x]);
else
valf = + 0.526*((int)srcpp[x] + (int)srcpn[x])
+ 0.170*((int)prvp[x])
- 0.116*((int)prvppp[x] + (int)prvpnn[x])
- 0.026*((int)srcp3p[x] + (int)srcp3n[x])
+ 0.031*((int)prvp4p[x] + (int)prvp4p[x]);
if (valf > hi) valf = hi;
else if (valf < lo) valf = lo;
dstp[x] = (int) valf;
}
else
{
if (twoway == 1)
val = (8*((int)srcpp[x] + (int)srcpn[x]) + 2*((int)srcp[x] + (int)prvp[x]) -
(int)(srcppp[x]) - (int)(srcpnn[x]) -
(int)(prvppp[x]) - (int)(prvpnn[x])) >> 4;
else
val = (8*((int)srcpp[x] + (int)srcpn[x]) + 2*((int)prvp[x]) -
(int)(prvppp[x]) - (int)(prvpnn[x])) >> 4;
if (val > hi) val = hi;
else if (val < lo) val = lo;
dstp[x] = (int) val;
}
}
}
else
{
dstp[x] = srcp[x];
}
}
prvp += 2*psrc_pitch;
prvpp += 2*psrc_pitch;
prvppp += 2*psrc_pitch;
prvpn += 2*psrc_pitch;
prvpnn += 2*psrc_pitch;
prvp4p += 2*psrc_pitch;
prvp4n += 2*psrc_pitch;
srcp += 2*src_pitch;
srcpp += 2*src_pitch;
srcppp += 2*src_pitch;
srcp3p += 2*src_pitch;
srcp4p += 2*src_pitch;
srcpn += 2*src_pitch;
srcpnn += 2*src_pitch;
srcp3n += 2*src_pitch;
srcp4n += 2*src_pitch;
dstp += 2*dst_pitch;
}
srcp = mpi->planes[z];
dstp = pmpi->planes[z];
for (y=0; y<h; y++) {
fast_memcpy(dstp, srcp, w);
srcp += src_pitch;
dstp += psrc_pitch;
}
}
return vf_next_put_image(vf,dmpi, pts);
}
//===========================================================================//
static int query_format(struct vf_instance *vf, unsigned int fmt){
switch(fmt)
{
case IMGFMT_YV12:
case IMGFMT_RGB:
case IMGFMT_YUY2:
return vf_next_query_format(vf, fmt);
}
return 0;
}
static int control(struct vf_instance *vf, int request, void* data){
switch (request)
{
case VFCTRL_GET_DEINTERLACE:
*(int*)data = vf->priv->do_deinterlace;
return CONTROL_OK;
case VFCTRL_SET_DEINTERLACE:
vf->priv->do_deinterlace = *(int*)data;
return CONTROL_OK;
}
return vf_next_control (vf, request, data);
}
static int vf_open(vf_instance_t *vf, char *args){
vf->control=control;
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->uninit=uninit;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
vf->priv->frame = 0;
vf->priv->map = 0;
vf->priv->order = 0;
vf->priv->thresh = 10;
vf->priv->sharp = 0;
vf->priv->twoway = 0;
vf->priv->do_deinterlace=1;
if (args)
{
sscanf(args, "%d:%d:%d:%d:%d",
&vf->priv->thresh, &vf->priv->map,
&vf->priv->order, &vf->priv->sharp,
&vf->priv->twoway);
}
if (vf->priv->order > 1) vf->priv->order = 1;
return 1;
}
const vf_info_t vf_info_kerndeint = {
"Kernel Deinterlacer",
"kerndeint",
"Donald Graft",
"",
vf_open,
NULL
};
//===========================================================================//
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