swscale: fix gbrap to gbrap alpha scaling
[ffmpeg.git] / libavcodec / hevcdsp.h
1 /*
2  * HEVC video decoder
3  *
4  * Copyright (C) 2012 - 2013 Guillaume Martres
5  *
6  * This file is part of Libav.
7  *
8  * Libav is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * Libav 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 GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with Libav; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22
23 #ifndef AVCODEC_HEVCDSP_H
24 #define AVCODEC_HEVCDSP_H
25
26 #include "get_bits.h"
27
28 typedef struct SAOParams {
29     int offset_abs[3][4];   ///< sao_offset_abs
30     int offset_sign[3][4];  ///< sao_offset_sign
31
32     int band_position[3];   ///< sao_band_position
33
34     int eo_class[3];        ///< sao_eo_class
35
36     int offset_val[3][5];   ///<SaoOffsetVal
37
38     uint8_t type_idx[3];    ///< sao_type_idx
39 } SAOParams;
40
41 typedef struct HEVCDSPContext {
42     void (*put_pcm)(uint8_t *dst, ptrdiff_t stride, int size,
43                     GetBitContext *gb, int pcm_bit_depth);
44
45     void (*transquant_bypass[4])(uint8_t *dst, int16_t *coeffs,
46                                  ptrdiff_t stride);
47
48     void (*transform_skip)(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
49     void (*transform_4x4_luma_add)(uint8_t *dst, int16_t *coeffs,
50                                    ptrdiff_t stride);
51     void (*transform_add[4])(uint8_t *dst, int16_t *coeffs, ptrdiff_t stride);
52
53     void (*sao_band_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
54                                struct SAOParams *sao, int *borders,
55                                int width, int height, int c_idx);
56     void (*sao_edge_filter[4])(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
57                                struct SAOParams *sao, int *borders, int width,
58                                int height, int c_idx, uint8_t vert_edge,
59                                uint8_t horiz_edge, uint8_t diag_edge);
60
61     void (*put_hevc_qpel[4][4])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
62                                 ptrdiff_t srcstride, int width, int height,
63                                 int16_t *mcbuffer);
64     void (*put_hevc_epel[2][2])(int16_t *dst, ptrdiff_t dststride, uint8_t *src,
65                                 ptrdiff_t srcstride, int width, int height,
66                                 int mx, int my, int16_t *mcbuffer);
67
68     void (*put_unweighted_pred)(uint8_t *dst, ptrdiff_t dststride, int16_t *src,
69                                 ptrdiff_t srcstride, int width, int height);
70     void (*put_weighted_pred_avg)(uint8_t *dst, ptrdiff_t dststride,
71                                   int16_t *src1, int16_t *src2,
72                                   ptrdiff_t srcstride, int width, int height);
73     void (*weighted_pred)(uint8_t denom, int16_t wlxFlag, int16_t olxFlag,
74                           uint8_t *dst, ptrdiff_t dststride, int16_t *src,
75                           ptrdiff_t srcstride, int width, int height);
76     void (*weighted_pred_avg)(uint8_t denom, int16_t wl0Flag, int16_t wl1Flag,
77                               int16_t ol0Flag, int16_t ol1Flag, uint8_t *dst,
78                               ptrdiff_t dststride, int16_t *src1, int16_t *src2,
79                               ptrdiff_t srcstride, int width, int height);
80
81     void (*hevc_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
82                                     int beta, int *tc,
83                                     uint8_t *no_p, uint8_t *no_q);
84     void (*hevc_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride,
85                                     int beta, int *tc,
86                                     uint8_t *no_p, uint8_t *no_q);
87     void (*hevc_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
88                                       int *tc, uint8_t *no_p, uint8_t *no_q);
89     void (*hevc_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride,
90                                       int *tc, uint8_t *no_p, uint8_t *no_q);
91     void (*hevc_h_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
92                                       int beta, int *tc,
93                                       uint8_t *no_p, uint8_t *no_q);
94     void (*hevc_v_loop_filter_luma_c)(uint8_t *pix, ptrdiff_t stride,
95                                       int beta, int *tc,
96                                       uint8_t *no_p, uint8_t *no_q);
97     void (*hevc_h_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
98                                         int *tc, uint8_t *no_p,
99                                         uint8_t *no_q);
100     void (*hevc_v_loop_filter_chroma_c)(uint8_t *pix, ptrdiff_t stride,
101                                         int *tc, uint8_t *no_p,
102                                         uint8_t *no_q);
103 } HEVCDSPContext;
104
105 void ff_hevc_dsp_init(HEVCDSPContext *hpc, int bit_depth);
106
107 void ff_hevc_dsp_init_x86(HEVCDSPContext *c, const int bit_depth);
108
109 extern const int8_t ff_hevc_epel_filters[7][16];
110
111 #endif /* AVCODEC_HEVCDSP_H */