libmpcodecs/vf_swapuv.c

   1 /*
   2  * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
   3  *
   4  * This file is part of MPlayer.
   5  *
   6  * MPlayer is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * MPlayer is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <inttypes.h>
  25 #include <assert.h>
  26
  27 #include "config.h"
  28 #include "mp_msg.h"
  29
  30 #ifdef HAVE_MALLOC_H
  31 #include <malloc.h>
  32 #endif
  33
  34 #include "img_format.h"
  35 #include "mp_image.h"
  36 #include "vf.h"
  37
  38
  39 //===========================================================================//
  40
  41 static void get_image(struct vf_instance_s* vf, mp_image_t *mpi){
  42     mp_image_t *dmpi= vf_get_image(vf->next, mpi->imgfmt,
  43         mpi->type, mpi->flags, mpi->w, mpi->h);
  44
  45     mpi->planes[0]=dmpi->planes[0];
  46     mpi->planes[1]=dmpi->planes[2];
  47     mpi->planes[2]=dmpi->planes[1];
  48     mpi->stride[0]=dmpi->stride[0];
  49     mpi->stride[1]=dmpi->stride[2];
  50     mpi->stride[2]=dmpi->stride[1];
  51     mpi->width=dmpi->width;
  52
  53     mpi->flags|=MP_IMGFLAG_DIRECT;
  54     mpi->priv=(void*)dmpi;
  55 }
  56
  57 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
  58     mp_image_t *dmpi;
  59
  60     if(mpi->flags&MP_IMGFLAG_DIRECT){
  61         dmpi=(mp_image_t*)mpi->priv;
  62     } else {
  63         dmpi=vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_EXPORT, 0, mpi->w, mpi->h);
  64         assert(mpi->flags&MP_IMGFLAG_PLANAR);
  65         dmpi->planes[0]=mpi->planes[0];
  66         dmpi->planes[1]=mpi->planes[2];
  67         dmpi->planes[2]=mpi->planes[1];
  68         dmpi->stride[0]=mpi->stride[0];
  69         dmpi->stride[1]=mpi->stride[2];
  70         dmpi->stride[2]=mpi->stride[1];
  71         dmpi->width=mpi->width;
  72     }
  73
  74     vf_clone_mpi_attributes(dmpi, mpi);
  75
  76     return vf_next_put_image(vf,dmpi, pts);
  77 }
  78
  79 //===========================================================================//
  80
  81 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
  82         switch(fmt)
  83         {
  84         case IMGFMT_YV12:
  85         case IMGFMT_I420:
  86         case IMGFMT_IYUV:
  87         case IMGFMT_YVU9:
  88         case IMGFMT_444P:
  89         case IMGFMT_422P:
  90         case IMGFMT_411P:
  91                 return vf_next_query_format(vf, fmt);
  92         }
  93         return 0;
  94 }
  95
  96 static int open(vf_instance_t *vf, char* args){
  97     vf->put_image=put_image;
  98     vf->get_image=get_image;
  99     vf->query_format=query_format;
 100     return 1;
 101 }
 102
 103 const vf_info_t vf_info_swapuv = {
 104     "UV swapper",
 105     "swapuv",
 106     "Michael Niedermayer",
 107     "",
 108     open,
 109     NULL
 110 };
 111
 112 //===========================================================================//