/*
  * Copyright (C) 2016 Open Broadcast Systems Ltd.
  * Author        2016 Rostislav Pehlivanov <atomnuker@gmail.com>
  *
  * 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 AVCODEC_VC2ENC_DWT_H
 #define AVCODEC_VC2ENC_DWT_H

 #include <stddef.h>

 #include <stdint.h>
 

 typedef int32_t dwtcoef;

 
 enum VC2TransformType {
     VC2_TRANSFORM_9_7    = 0,   /* Deslauriers-Dubuc (9,7)  */
     VC2_TRANSFORM_5_3    = 1,   /* LeGall (5,3)             */
     VC2_TRANSFORM_13_7   = 2,   /* Deslauriers-Dubuc (13,7) */
     VC2_TRANSFORM_HAAR   = 3,   /* Haar without shift       */
     VC2_TRANSFORM_HAAR_S = 4,   /* Haar with 1 shift/lvl    */
     VC2_TRANSFORM_FIDEL  = 5,   /* Fidelity filter          */
     VC2_TRANSFORM_9_7_I  = 6,   /* Daubechies (9,7)         */
 
     VC2_TRANSFORMS_NB
 };
 
 typedef struct VC2TransformContext {
     dwtcoef *buffer;
     void (*vc2_subband_dwt[VC2_TRANSFORMS_NB])(struct VC2TransformContext *t,
                                                dwtcoef *data, ptrdiff_t stride,
                                                int width, int height);
 } VC2TransformContext;
 
 int  ff_vc2enc_init_transforms(VC2TransformContext *t, int p_width, int p_height);
 void ff_vc2enc_free_transforms(VC2TransformContext *t);
 

 #endif /* AVCODEC_VC2ENC_DWT_H */