libmpcodecs/vf_telecine.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22
  23 #include "config.h"
  24 #include "mp_msg.h"
  25
  26 #include "img_format.h"
  27 #include "mp_image.h"
  28 #include "vf.h"
  29
  30 #include "libvo/fastmemcpy.h"
  31
  32 struct vf_priv_s {
  33         int frame;
  34 };
  35
  36 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
  37 {
  38         mp_image_t *dmpi;
  39         int ret;
  40
  41         vf->priv->frame = (vf->priv->frame+1)%4;
  42
  43         dmpi = vf_get_image(vf->next, mpi->imgfmt,
  44                 MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
  45                 MP_IMGFLAG_PRESERVE, mpi->width, mpi->height);
  46
  47         ret = 0;
  48         //    0/0  1/1  2/2  2/3  3/0
  49         switch (vf->priv->frame) {
  50         case 0:
  51                 my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
  52                         mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
  53                         dmpi->stride[0]*2, mpi->stride[0]*2);
  54                 if (mpi->flags & MP_IMGFLAG_PLANAR) {
  55                         my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
  56                                 mpi->planes[1]+mpi->stride[1],
  57                                 mpi->chroma_width, mpi->chroma_height/2,
  58                                 dmpi->stride[1]*2, mpi->stride[1]*2);
  59                         my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
  60                                 mpi->planes[2]+mpi->stride[2],
  61                                 mpi->chroma_width, mpi->chroma_height/2,
  62                                 dmpi->stride[2]*2, mpi->stride[2]*2);
  63                 }
  64                 ret = vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
  65         case 1:
  66         case 2:
  67                 memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h,
  68                         dmpi->stride[0], mpi->stride[0]);
  69                 if (mpi->flags & MP_IMGFLAG_PLANAR) {
  70                         memcpy_pic(dmpi->planes[1], mpi->planes[1],
  71                                 mpi->chroma_width, mpi->chroma_height,
  72                                 dmpi->stride[1], mpi->stride[1]);
  73                         memcpy_pic(dmpi->planes[2], mpi->planes[2],
  74                                 mpi->chroma_width, mpi->chroma_height,
  75                                 dmpi->stride[2], mpi->stride[2]);
  76                 }
  77                 return vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE) || ret;
  78         case 3:
  79                 my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
  80                         mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
  81                         dmpi->stride[0]*2, mpi->stride[0]*2);
  82                 if (mpi->flags & MP_IMGFLAG_PLANAR) {
  83                         my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
  84                                 mpi->planes[1]+mpi->stride[1],
  85                                 mpi->chroma_width, mpi->chroma_height/2,
  86                                 dmpi->stride[1]*2, mpi->stride[1]*2);
  87                         my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
  88                                 mpi->planes[2]+mpi->stride[2],
  89                                 mpi->chroma_width, mpi->chroma_height/2,
  90                                 dmpi->stride[2]*2, mpi->stride[2]*2);
  91                 }
  92                 ret = vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
  93                 my_memcpy_pic(dmpi->planes[0], mpi->planes[0], mpi->w, mpi->h/2,
  94                         dmpi->stride[0]*2, mpi->stride[0]*2);
  95                 if (mpi->flags & MP_IMGFLAG_PLANAR) {
  96                         my_memcpy_pic(dmpi->planes[1], mpi->planes[1],
  97                                 mpi->chroma_width, mpi->chroma_height/2,
  98                                 dmpi->stride[1]*2, mpi->stride[1]*2);
  99                         my_memcpy_pic(dmpi->planes[2], mpi->planes[2],
 100                                 mpi->chroma_width, mpi->chroma_height/2,
 101                                 dmpi->stride[2]*2, mpi->stride[2]*2);
 102                 }
 103                 return ret;
 104         }
 105         return 0;
 106 }
 107
 108 #if 0
 109 static int query_format(struct vf_instance *vf, unsigned int fmt)
 110 {
 111         /* FIXME - figure out which other formats work */
 112         switch (fmt) {
 113         case IMGFMT_YV12:
 114         case IMGFMT_IYUV:
 115         case IMGFMT_I420:
 116                 return vf_next_query_format(vf, fmt);
 117         }
 118         return 0;
 119 }
 120
 121 static int config(struct vf_instance *vf,
 122         int width, int height, int d_width, int d_height,
 123         unsigned int flags, unsigned int outfmt)
 124 {
 125         return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
 126 }
 127 #endif
 128
 129 static void uninit(struct vf_instance *vf)
 130 {
 131         free(vf->priv);
 132 }
 133
 134 static int vf_open(vf_instance_t *vf, char *args)
 135 {
 136         //vf->config = config;
 137         vf->put_image = put_image;
 138         //vf->query_format = query_format;
 139         vf->uninit = uninit;
 140         vf->default_reqs = VFCAP_ACCEPT_STRIDE;
 141         vf->priv = calloc(1, sizeof(struct vf_priv_s));
 142         vf->priv->frame = 1;
 143         if (args) sscanf(args, "%d", &vf->priv->frame);
 144         vf->priv->frame--;
 145         return 1;
 146 }
 147
 148 const vf_info_t vf_info_telecine = {
 149     "telecine filter",
 150     "telecine",
 151     "Rich Felker",
 152     "",
 153     vf_open,
 154     NULL
 155 };