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/*
* 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 "config.h"
#include "mp_msg.h"
#include "mp_image.h"
#include "img_format.h"
#include "vf.h"
struct vf_priv_s {
float sense; // first parameter
float level; // second parameter
unsigned int imgfmt;
int diff;
uint32_t max;
// int dfr;
// int rdfr;
int was_dint;
mp_image_t *pmpi; // previous mpi
};
#define MAXROWSIZE 1200
static int config (struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
int rowsize;
vf->priv->pmpi = ff_vf_get_image (vf->next, outfmt, MP_IMGTYPE_TEMP,
0, width, height);
if (!(vf->priv->pmpi->flags & MP_IMGFLAG_PLANAR) &&
outfmt != IMGFMT_RGB32 && outfmt != IMGFMT_BGR32 &&
outfmt != IMGFMT_RGB24 && outfmt != IMGFMT_BGR24 &&
outfmt != IMGFMT_RGB16 && outfmt != IMGFMT_BGR16)
{
ff_mp_msg (MSGT_VFILTER, MSGL_WARN, "Drop-interlaced filter doesn't support this outfmt :(\n");
return 0;
}
vf->priv->imgfmt = outfmt;
// recalculate internal values
rowsize = vf->priv->pmpi->width;
if (rowsize > MAXROWSIZE) rowsize = MAXROWSIZE;
vf->priv->max = vf->priv->level * vf->priv->pmpi->height * rowsize / 2;
if (vf->priv->pmpi->flags & MP_IMGFLAG_PLANAR) // planar YUV
vf->priv->diff = vf->priv->sense * 256;
else
vf->priv->diff = vf->priv->sense * (1 << (vf->priv->pmpi->bpp/3));
if (vf->priv->diff < 0) vf->priv->diff = 0;
if (!(vf->priv->pmpi->flags & MP_IMGFLAG_PLANAR) &&
vf->priv->pmpi->bpp < 24 && vf->priv->diff > 31)
vf->priv->diff = 31;
ff_mp_msg (MSGT_VFILTER, MSGL_INFO, "Drop-interlaced: %dx%d diff %d / level %u\n",
vf->priv->pmpi->width, vf->priv->pmpi->height,
vf->priv->diff, (unsigned int)vf->priv->max);
// vf->priv->rdfr = vf->priv->dfr = 0;
vf->priv->was_dint = 0;
return ff_vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static int put_image (struct vf_instance *vf, mp_image_t *mpi, double pts)
{
int8_t rrow0[MAXROWSIZE];
int8_t rrow1[MAXROWSIZE];
int8_t rrow2[MAXROWSIZE];
int8_t *row0 = rrow0, *row1 = rrow1, *row2 = rrow2/*, *row3 = rrow3*/;
int rowsize = mpi->width;
uint32_t nok = 0, max = vf->priv->max;
int diff = vf->priv->diff;
int i, j;
register int n1, n2;
unsigned char *cur0, *prv0;
register unsigned char *cur, *prv;
if (rowsize > MAXROWSIZE) rowsize = MAXROWSIZE;
// check if nothing to do
if (mpi->imgfmt == vf->priv->imgfmt)
{
cur0 = mpi->planes[0] + mpi->stride[0];
prv0 = mpi->planes[0];
for (j = 1; j < mpi->height && nok <= max; j++)
{
cur = cur0;
prv = prv0;
// analyse row (row0)
if (mpi->flags & MP_IMGFLAG_PLANAR) // planar YUV - check luminance
for (i = 0; i < rowsize; i++)
{
if (cur[0] - prv[0] > diff)
row0[i] = 1;
else if (cur[0] - prv[0] < -diff)
row0[i] = -1;
else
row0[i] = 0;
cur++;
prv++;
// check if row0 is 1 but row1 is 0, and row2 is 1 or row2 is 0
// but row3 is 1 so it's interlaced ptr (nok++)
if (j > 2 && row0[i] > 0 && (row1[i] < 0 || (!row1[i] && row2[i] < 0)) &&
(++nok) > max)
break;
}
else if (mpi->bpp < 24) // RGB/BGR 16 - check all colors
for (i = 0; i < rowsize; i++)
{
n1 = cur[0] + (cur[1]<<8);
n2 = prv[0] + (prv[1]<<8);
if ((n1&0x1f) - (n2&0x1f) > diff ||
((n1>>5)&0x3f) - ((n2>>5)&0x3f) > diff ||
((n1>>11)&0x1f) - ((n2>>11)&0x1f) > diff)
row0[i] = 1;
else if ((n1&0x1f) - (n2&0x1f) < -diff ||
((n1>>5)&0x3f) - ((n2>>5)&0x3f) < -diff ||
((n1>>11)&0x1f) - ((n2>>11)&0x1f) < -diff)
row0[i] = -1;
else
row0[i] = 0;
cur += 2;
prv += 2;
// check if row0 is 1 but row1 is 0, and row2 is 1 or row2 is 0
// but row3 is 1 so it's interlaced ptr (nok++)
if (j > 2 && row0[i] > 0 && (row1[i] < 0 || (!row1[i] && row2[i] < 0)) &&
(++nok) > max)
break;
}
else // RGB/BGR 24/32
for (i = 0; i < rowsize; i++)
{
if (cur[0] - prv[0] > diff ||
cur[1] - prv[1] > diff ||
cur[2] - prv[2] > diff)
row0[i] = 1;
else if (prv[0] - cur[0] > diff ||
prv[1] - cur[1] > diff ||
prv[2] - cur[2] > diff)
row0[i] = -1;
else
row0[i] = 0;
cur += mpi->bpp/8;
prv += mpi->bpp/8;
// check if row0 is 1 but row1 is 0, and row2 is 1 or row2 is 0
// but row3 is 1 so it's interlaced ptr (nok++)
if (j > 2 && row0[i] > 0 && (row1[i] < 0 || (!row1[i] && row2[i] < 0)) &&
(++nok) > max)
break;
}
cur0 += mpi->stride[0];
prv0 += mpi->stride[0];
// rotate rows
cur = row2;
row2 = row1;
row1 = row0;
row0 = cur;
}
}
// check if number of interlaced is above of max
if (nok > max)
{
// vf->priv->dfr++;
if (vf->priv->was_dint < 1) // can skip at most one frame!
{
vf->priv->was_dint++;
// vf->priv->rdfr++;
// ff_mp_msg (MSGT_VFILTER, MSGL_INFO, "DI:%d/%d ", vf->priv->rdfr, vf->priv->dfr);
return 0;
}
}
vf->priv->was_dint = 0;
// ff_mp_msg (MSGT_VFILTER, MSGL_INFO, "DI:%d/%d ", vf->priv->rdfr, vf->priv->dfr);
return ff_vf_next_put_image (vf, mpi, pts);
}
static int vf_open(vf_instance_t *vf, char *args){
vf->config = config;
vf->put_image = put_image;
// vf->default_reqs=VFCAP_ACCEPT_STRIDE;
vf->priv = malloc (sizeof(struct vf_priv_s));
vf->priv->sense = 0.1;
vf->priv->level = 0.15;
vf->priv->pmpi = NULL;
if (args)
sscanf (args, "%f:%f", &vf->priv->sense, &vf->priv->level);
return 1;
}
const vf_info_t ff_vf_info_dint = {
"drop interlaced frames",
"dint",
"A.G.",
"",
vf_open,
NULL
};
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