libmpcodecs/vf_yuy2.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 #include <inttypes.h>
  23
  24 #include "config.h"
  25 #include "mp_msg.h"
  26 #include "help_mp.h"
  27
  28 #include "img_format.h"
  29 #include "mp_image.h"
  30 #include "vf.h"
  31
  32 #include "libswscale/rgb2rgb.h"
  33 #include "vf_scale.h"
  34
  35 //===========================================================================//
  36
  37 static int config(struct vf_instance* vf,
  38         int width, int height, int d_width, int d_height,
  39         unsigned int flags, unsigned int outfmt){
  40
  41     sws_rgb2rgb_init(get_sws_cpuflags());
  42
  43     if(vf_next_query_format(vf,IMGFMT_YUY2)<=0){
  44         mp_tmsg(MSGT_VFILTER, MSGL_WARN, "%s not supported by next filter/vo :(\n", "YUY2");
  45         return 0;
  46     }
  47
  48     return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_YUY2);
  49 }
  50
  51 static int put_image(struct vf_instance* vf, mp_image_t *mpi, double pts){
  52     mp_image_t *dmpi;
  53
  54     // hope we'll get DR buffer:
  55     dmpi=vf_get_image(vf->next,IMGFMT_YUY2,
  56         MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
  57         mpi->w, mpi->h);
  58
  59     if(mpi->imgfmt==IMGFMT_422P)
  60     yuv422ptoyuy2(mpi->planes[0],mpi->planes[1],mpi->planes[2], dmpi->planes[0],
  61             mpi->w,mpi->h, mpi->stride[0],mpi->stride[1],dmpi->stride[0]);
  62     else
  63     yv12toyuy2(mpi->planes[0],mpi->planes[1],mpi->planes[2], dmpi->planes[0],
  64             mpi->w,mpi->h, mpi->stride[0],mpi->stride[1],dmpi->stride[0]);
  65
  66     vf_clone_mpi_attributes(dmpi, mpi);
  67
  68     return vf_next_put_image(vf,dmpi, pts);
  69 }
  70
  71 //===========================================================================//
  72
  73 static int query_format(struct vf_instance* vf, unsigned int fmt){
  74     switch(fmt){
  75     case IMGFMT_YV12:
  76     case IMGFMT_I420:
  77     case IMGFMT_IYUV:
  78     case IMGFMT_422P:
  79         return vf_next_query_format(vf,IMGFMT_YUY2) & (~VFCAP_CSP_SUPPORTED_BY_HW);
  80     }
  81     return 0;
  82 }
  83
  84 static int open(vf_instance_t *vf, char* args){
  85     vf->config=config;
  86     vf->put_image=put_image;
  87     vf->query_format=query_format;
  88     return 1;
  89 }
  90
  91 const vf_info_t vf_info_yuy2 = {
  92     "fast YV12/Y422p -> YUY2 conversion",
  93     "yuy2",
  94     "A'rpi",
  95     "",
  96     open,
  97     NULL
  98 };
  99
 100 //===========================================================================//