git.sesse.net Git - x264/blob - filters/video/video.c

   1 /*****************************************************************************
   2  * video.c: video filters
   3  *****************************************************************************
   4  * Copyright (C) 2010 x264 project
   5  *
   6  * Authors: Steven Walters <kemuri9@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111, USA.
  21  *
  22  * This program is also available under a commercial proprietary license.
  23  * For more information, contact us at licensing@x264.com.
  24  *****************************************************************************/
  25
  26 #include "video.h"
  27
  28 static cli_vid_filter_t *first_filter = NULL;
  29
  30 static void register_vid_filter( cli_vid_filter_t *new_filter )
  31 {
  32     cli_vid_filter_t *filter_i = first_filter;
  33     while( filter_i->next )
  34         filter_i = filter_i->next;
  35     filter_i->next = new_filter;
  36     new_filter->next = NULL;
  37 }
  38
  39 #define REGISTER_VFILTER(name)\
  40 {\
  41     extern cli_vid_filter_t name##_filter;\
  42     register_vid_filter( &name##_filter );\
  43 }
  44
  45 void x264_register_vid_filters()
  46 {
  47     extern cli_vid_filter_t source_filter;
  48     first_filter = &source_filter;
  49     REGISTER_VFILTER( cache );
  50     REGISTER_VFILTER( crop );
  51     REGISTER_VFILTER( fix_vfr_pts );
  52     REGISTER_VFILTER( resize );
  53     REGISTER_VFILTER( select_every );
  54 }
  55
  56 int x264_init_vid_filter( const char *name, hnd_t *handle, cli_vid_filter_t *filter,
  57                           video_info_t *info, x264_param_t *param, char *opt_string )
  58 {
  59     cli_vid_filter_t *filter_i = first_filter;
  60     while( filter_i && strcasecmp( name, filter_i->name ) )
  61         filter_i = filter_i->next;
  62     FAIL_IF_ERR( !filter_i, "x264", "invalid filter `%s'\n", name );
  63     if( filter_i->init( handle, filter, info, param, opt_string ) )
  64         return -1;
  65
  66     return 0;
  67 }
  68
  69 void x264_vid_filter_help( int longhelp )
  70 {
  71     for( cli_vid_filter_t *filter_i = first_filter; filter_i; filter_i = filter_i->next )
  72         if( filter_i->help )
  73             filter_i->help( longhelp );
  74 }