libmpcodecs/vf_noformat.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
  27 #include "img_format.h"
  28 #include "mp_image.h"
  29 #include "vf.h"
  30
  31 #include "m_option.h"
  32 #include "m_struct.h"
  33
  34 static struct vf_priv_s {
  35     unsigned int fmt;
  36 } const vf_priv_dflt = {
  37   IMGFMT_YV12
  38 };
  39
  40 //===========================================================================//
  41
  42 static int query_format(struct vf_instance *vf, unsigned int fmt){
  43     if(fmt!=vf->priv->fmt)
  44         return vf_next_query_format(vf,fmt);
  45     return 0;
  46 }
  47
  48 static int vf_open(vf_instance_t *vf, char *args){
  49     vf->query_format=query_format;
  50     vf->draw_slice=vf_next_draw_slice;
  51     vf->default_caps=0;
  52     return 1;
  53 }
  54
  55 #define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
  56 static const m_option_t vf_opts_fields[] = {
  57   {"fmt", ST_OFF(fmt), CONF_TYPE_IMGFMT, 0,0 ,0, NULL},
  58   { NULL, NULL, 0, 0, 0, 0,  NULL }
  59 };
  60
  61 static const m_struct_t vf_opts = {
  62   "noformat",
  63   sizeof(struct vf_priv_s),
  64   &vf_priv_dflt,
  65   vf_opts_fields
  66 };
  67
  68 const vf_info_t vf_info_noformat = {
  69     "disallow one output format",
  70     "noformat",
  71     "Joey",
  72     "",
  73     vf_open,
  74     &vf_opts
  75 };
  76
  77 //===========================================================================//