mirror of
https://git.videolan.org/git/ffmpeg.git
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215 lines
7.0 KiB
C
215 lines
7.0 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "mp_image.h"
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#include "img_format.h"
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#include "vf.h"
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struct vf_priv_s {
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float sense; // first parameter
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float level; // second parameter
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unsigned int imgfmt;
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int diff;
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uint32_t max;
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// int dfr;
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// int rdfr;
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int was_dint;
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mp_image_t *pmpi; // previous mpi
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};
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#define MAXROWSIZE 1200
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static int config (struct vf_instance *vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt)
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{
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int rowsize;
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vf->priv->pmpi = vf_get_image (vf->next, outfmt, MP_IMGTYPE_TEMP,
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0, width, height);
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if (!(vf->priv->pmpi->flags & MP_IMGFLAG_PLANAR) &&
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outfmt != IMGFMT_RGB32 && outfmt != IMGFMT_BGR32 &&
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outfmt != IMGFMT_RGB24 && outfmt != IMGFMT_BGR24 &&
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outfmt != IMGFMT_RGB16 && outfmt != IMGFMT_BGR16)
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{
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mp_msg (MSGT_VFILTER, MSGL_WARN, "Drop-interlaced filter doesn't support this outfmt :(\n");
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return 0;
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}
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vf->priv->imgfmt = outfmt;
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// recalculate internal values
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rowsize = vf->priv->pmpi->width;
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if (rowsize > MAXROWSIZE) rowsize = MAXROWSIZE;
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vf->priv->max = vf->priv->level * vf->priv->pmpi->height * rowsize / 2;
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if (vf->priv->pmpi->flags & MP_IMGFLAG_PLANAR) // planar YUV
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vf->priv->diff = vf->priv->sense * 256;
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else
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vf->priv->diff = vf->priv->sense * (1 << (vf->priv->pmpi->bpp/3));
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if (vf->priv->diff < 0) vf->priv->diff = 0;
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if (!(vf->priv->pmpi->flags & MP_IMGFLAG_PLANAR) &&
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vf->priv->pmpi->bpp < 24 && vf->priv->diff > 31)
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vf->priv->diff = 31;
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mp_msg (MSGT_VFILTER, MSGL_INFO, "Drop-interlaced: %dx%d diff %d / level %u\n",
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vf->priv->pmpi->width, vf->priv->pmpi->height,
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vf->priv->diff, (unsigned int)vf->priv->max);
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// vf->priv->rdfr = vf->priv->dfr = 0;
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vf->priv->was_dint = 0;
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static int put_image (struct vf_instance *vf, mp_image_t *mpi, double pts)
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{
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int8_t rrow0[MAXROWSIZE];
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int8_t rrow1[MAXROWSIZE];
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int8_t rrow2[MAXROWSIZE];
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int8_t *row0 = rrow0, *row1 = rrow1, *row2 = rrow2/*, *row3 = rrow3*/;
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int rowsize = mpi->width;
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uint32_t nok = 0, max = vf->priv->max;
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int diff = vf->priv->diff;
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int i, j;
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register int n1, n2;
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unsigned char *cur0, *prv0;
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register unsigned char *cur, *prv;
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if (rowsize > MAXROWSIZE) rowsize = MAXROWSIZE;
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// check if nothing to do
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if (mpi->imgfmt == vf->priv->imgfmt)
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{
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cur0 = mpi->planes[0] + mpi->stride[0];
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prv0 = mpi->planes[0];
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for (j = 1; j < mpi->height && nok <= max; j++)
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{
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cur = cur0;
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prv = prv0;
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// analyse row (row0)
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if (mpi->flags & MP_IMGFLAG_PLANAR) // planar YUV - check luminance
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for (i = 0; i < rowsize; i++)
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{
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if (cur[0] - prv[0] > diff)
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row0[i] = 1;
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else if (cur[0] - prv[0] < -diff)
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row0[i] = -1;
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else
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row0[i] = 0;
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cur++;
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prv++;
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// check if row0 is 1 but row1 is 0, and row2 is 1 or row2 is 0
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// but row3 is 1 so it's interlaced ptr (nok++)
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if (j > 2 && row0[i] > 0 && (row1[i] < 0 || (!row1[i] && row2[i] < 0)) &&
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(++nok) > max)
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break;
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}
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else if (mpi->bpp < 24) // RGB/BGR 16 - check all colors
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for (i = 0; i < rowsize; i++)
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{
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n1 = cur[0] + (cur[1]<<8);
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n2 = prv[0] + (prv[1]<<8);
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if ((n1&0x1f) - (n2&0x1f) > diff ||
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((n1>>5)&0x3f) - ((n2>>5)&0x3f) > diff ||
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((n1>>11)&0x1f) - ((n2>>11)&0x1f) > diff)
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row0[i] = 1;
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else if ((n1&0x1f) - (n2&0x1f) < -diff ||
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((n1>>5)&0x3f) - ((n2>>5)&0x3f) < -diff ||
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((n1>>11)&0x1f) - ((n2>>11)&0x1f) < -diff)
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row0[i] = -1;
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else
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row0[i] = 0;
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cur += 2;
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prv += 2;
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// check if row0 is 1 but row1 is 0, and row2 is 1 or row2 is 0
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// but row3 is 1 so it's interlaced ptr (nok++)
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if (j > 2 && row0[i] > 0 && (row1[i] < 0 || (!row1[i] && row2[i] < 0)) &&
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(++nok) > max)
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break;
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}
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else // RGB/BGR 24/32
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for (i = 0; i < rowsize; i++)
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{
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if (cur[0] - prv[0] > diff ||
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cur[1] - prv[1] > diff ||
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cur[2] - prv[2] > diff)
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row0[i] = 1;
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else if (prv[0] - cur[0] > diff ||
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prv[1] - cur[1] > diff ||
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prv[2] - cur[2] > diff)
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row0[i] = -1;
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else
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row0[i] = 0;
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cur += mpi->bpp/8;
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prv += mpi->bpp/8;
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// check if row0 is 1 but row1 is 0, and row2 is 1 or row2 is 0
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// but row3 is 1 so it's interlaced ptr (nok++)
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if (j > 2 && row0[i] > 0 && (row1[i] < 0 || (!row1[i] && row2[i] < 0)) &&
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(++nok) > max)
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break;
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}
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cur0 += mpi->stride[0];
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prv0 += mpi->stride[0];
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// rotate rows
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cur = row2;
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row2 = row1;
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row1 = row0;
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row0 = cur;
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}
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}
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// check if number of interlaced is above of max
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if (nok > max)
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{
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// vf->priv->dfr++;
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if (vf->priv->was_dint < 1) // can skip at most one frame!
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{
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vf->priv->was_dint++;
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// vf->priv->rdfr++;
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// mp_msg (MSGT_VFILTER, MSGL_INFO, "DI:%d/%d ", vf->priv->rdfr, vf->priv->dfr);
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return 0;
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}
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}
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vf->priv->was_dint = 0;
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// mp_msg (MSGT_VFILTER, MSGL_INFO, "DI:%d/%d ", vf->priv->rdfr, vf->priv->dfr);
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return vf_next_put_image (vf, mpi, pts);
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}
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static int vf_open(vf_instance_t *vf, char *args){
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vf->config = config;
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vf->put_image = put_image;
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// vf->default_reqs=VFCAP_ACCEPT_STRIDE;
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vf->priv = malloc (sizeof(struct vf_priv_s));
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vf->priv->sense = 0.1;
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vf->priv->level = 0.15;
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vf->priv->pmpi = NULL;
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if (args)
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sscanf (args, "%f:%f", &vf->priv->sense, &vf->priv->level);
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return 1;
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}
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const vf_info_t vf_info_dint = {
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"drop interlaced frames",
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"dint",
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"A.G.",
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"",
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vf_open,
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NULL
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};
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