/*
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #ifndef AVFILTER_BWDIF_H
 #define AVFILTER_BWDIF_H
 
 #include "libavutil/pixdesc.h"
 #include "avfilter.h"
 
 enum BWDIFMode {
     BWDIF_MODE_SEND_FRAME = 0, ///< send 1 frame for each frame
     BWDIF_MODE_SEND_FIELD = 1, ///< send 1 frame for each field
 };
 
 enum BWDIFParity {
     BWDIF_PARITY_TFF  =  0, ///< top field first
     BWDIF_PARITY_BFF  =  1, ///< bottom field first
     BWDIF_PARITY_AUTO = -1, ///< auto detection
 };
 
 enum BWDIFDeint {
     BWDIF_DEINT_ALL        = 0, ///< deinterlace all frames
     BWDIF_DEINT_INTERLACED = 1, ///< only deinterlace frames marked as interlaced
 };
 
 typedef struct BWDIFContext {
     const AVClass *class;
 
     int mode;           ///< BWDIFMode
     int parity;         ///< BWDIFParity
     int deint;          ///< BWDIFDeint
 
     int frame_pending;
 
     AVFrame *cur;
     AVFrame *next;
     AVFrame *prev;
     AVFrame *out;
 
     void (*filter_intra)(void *dst1, void *cur1, int w, int prefs, int mrefs,
                          int prefs3, int mrefs3, int parity, int clip_max);
     void (*filter_line)(void *dst, void *prev, void *cur, void *next,
                         int w, int prefs, int mrefs, int prefs2, int mrefs2,
                         int prefs3, int mrefs3, int prefs4, int mrefs4,
                         int parity, int clip_max);
     void (*filter_edge)(void *dst, void *prev, void *cur, void *next,
                         int w, int prefs, int mrefs, int prefs2, int mrefs2,
                         int parity, int clip_max, int spat);
 
     const AVPixFmtDescriptor *csp;
     int inter_field;
     int eof;
 } BWDIFContext;
 
 void ff_bwdif_init_x86(BWDIFContext *bwdif);
 
 #endif /* AVFILTER_BWDIF_H */