/*
  * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
  *
  * 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
  */
 
 /**

  * @file

  * H.264 / AVC / MPEG4 prediction functions.
  * @author Michael Niedermayer <michaelni@gmx.at>
  */
 

 #ifndef AVCODEC_H264PRED_H
 #define AVCODEC_H264PRED_H

 #include "libavutil/common.h"

 #include "dsputil.h"

 
 /**
  * Prediction types
  */
 //@{
 #define VERT_PRED             0
 #define HOR_PRED              1
 #define DC_PRED               2
 #define DIAG_DOWN_LEFT_PRED   3
 #define DIAG_DOWN_RIGHT_PRED  4
 #define VERT_RIGHT_PRED       5
 #define HOR_DOWN_PRED         6
 #define VERT_LEFT_PRED        7
 #define HOR_UP_PRED           8
 

 // DC edge (not for VP8)

 #define LEFT_DC_PRED          9
 #define TOP_DC_PRED           10
 #define DC_128_PRED           11
 

 // RV40 specific

 #define DIAG_DOWN_LEFT_PRED_RV40_NODOWN   12
 #define HOR_UP_PRED_RV40_NODOWN           13

 #define VERT_LEFT_PRED_RV40_NODOWN        14

 // VP8 specific
 #define TM_VP8_PRED           9     ///< "True Motion", used instead of plane
 #define VERT_VP8_PRED         10    ///< for VP8, #VERT_PRED is the average of
                                     ///< (left col+cur col x2+right col) / 4;
                                     ///< this is the "unaveraged" one
 #define HOR_VP8_PRED          11    ///< unaveraged version of #HOR_PRED, see
                                     ///< #VERT_VP8_PRED for details
 #define DC_127_PRED           12
 #define DC_129_PRED           13
 

 #define DC_PRED8x8            0
 #define HOR_PRED8x8           1
 #define VERT_PRED8x8          2
 #define PLANE_PRED8x8         3
 

 // DC edge

 #define LEFT_DC_PRED8x8       4
 #define TOP_DC_PRED8x8        5
 #define DC_128_PRED8x8        6

 // H264/SVQ3 (8x8) specific

 #define ALZHEIMER_DC_L0T_PRED8x8 7
 #define ALZHEIMER_DC_0LT_PRED8x8 8
 #define ALZHEIMER_DC_L00_PRED8x8 9
 #define ALZHEIMER_DC_0L0_PRED8x8 10

 
 // VP8 specific
 #define DC_127_PRED8x8        7
 #define DC_129_PRED8x8        8

 //@}
 
 /**
  * Context for storing H.264 prediction functions
  */
 typedef struct H264PredContext{

     void (*pred4x4  [9+3+3])(uint8_t *src, const uint8_t *topright, int stride);//FIXME move to dsp?

     void (*pred8x8l [9+3])(uint8_t *src, int topleft, int topright, int stride);

     void (*pred8x8  [4+3+4])(uint8_t *src, int stride);

     void (*pred16x16[4+3+2])(uint8_t *src, int stride);

 
     void (*pred4x4_add  [2])(uint8_t *pix/*align  4*/, const DCTELEM *block/*align 16*/, int stride);
     void (*pred8x8l_add [2])(uint8_t *pix/*align  8*/, const DCTELEM *block/*align 16*/, int stride);
     void (*pred8x8_add  [3])(uint8_t *pix/*align  8*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
     void (*pred16x16_add[3])(uint8_t *pix/*align 16*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);

 }H264PredContext;
 

 void ff_h264_pred_init(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc);
 void ff_h264_pred_init_arm(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc);
 void ff_h264_pred_init_x86(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc);

 #endif /* AVCODEC_H264PRED_H */