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h264dsp.h
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1 /*
2  * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * H.264 DSP functions.
24  * @author Michael Niedermayer <michaelni@gmx.at>
25  */
26 
27 #ifndef AVCODEC_H264DSP_H
28 #define AVCODEC_H264DSP_H
29 
30 #include <stdint.h>
31 
32 #include "dsputil.h"
33 
34 typedef void (*h264_weight_func)(uint8_t *block, int stride, int height,
35  int log2_denom, int weight, int offset);
36 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src,
37  int stride, int height, int log2_denom,
38  int weightd, int weights, int offset);
39 
40 /**
41  * Context for storing H.264 DSP functions
42  */
43 typedef struct H264DSPContext {
44  /* weighted MC */
45  h264_weight_func weight_h264_pixels_tab[4];
46  h264_biweight_func biweight_h264_pixels_tab[4];
47 
48  /* loop filter */
49  void (*h264_v_loop_filter_luma)(uint8_t *pix /*align 16*/, int stride,
50  int alpha, int beta, int8_t *tc0);
51  void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, int stride,
52  int alpha, int beta, int8_t *tc0);
53  void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, int stride,
54  int alpha, int beta, int8_t *tc0);
55  /* v/h_loop_filter_luma_intra: align 16 */
56  void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride,
57  int alpha, int beta);
58  void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride,
59  int alpha, int beta);
60  void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/,
61  int stride, int alpha, int beta);
62  void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, int stride,
63  int alpha, int beta, int8_t *tc0);
64  void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, int stride,
65  int alpha, int beta, int8_t *tc0);
66  void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/,
67  int stride, int alpha, int beta,
68  int8_t *tc0);
69  void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
70  int stride, int alpha, int beta);
71  void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
72  int stride, int alpha, int beta);
73  void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/,
74  int stride, int alpha, int beta);
75  // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
76  void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40],
77  int8_t ref[2][40], int16_t mv[2][40][2],
78  int bidir, int edges, int step,
79  int mask_mv0, int mask_mv1, int field);
80 
81  /* IDCT */
82  void (*h264_idct_add)(uint8_t *dst /*align 4*/,
83  DCTELEM *block /*align 16*/, int stride);
84  void (*h264_idct8_add)(uint8_t *dst /*align 8*/,
85  DCTELEM *block /*align 16*/, int stride);
86  void (*h264_idct_dc_add)(uint8_t *dst /*align 4*/,
87  DCTELEM *block /*align 16*/, int stride);
88  void (*h264_idct8_dc_add)(uint8_t *dst /*align 8*/,
89  DCTELEM *block /*align 16*/, int stride);
90 
91  void (*h264_idct_add16)(uint8_t *dst /*align 16*/, const int *blockoffset,
92  DCTELEM *block /*align 16*/, int stride,
93  const uint8_t nnzc[15 * 8]);
94  void (*h264_idct8_add4)(uint8_t *dst /*align 16*/, const int *blockoffset,
95  DCTELEM *block /*align 16*/, int stride,
96  const uint8_t nnzc[15 * 8]);
97  void (*h264_idct_add8)(uint8_t **dst /*align 16*/, const int *blockoffset,
98  DCTELEM *block /*align 16*/, int stride,
99  const uint8_t nnzc[15 * 8]);
100  void (*h264_idct_add16intra)(uint8_t *dst /*align 16*/, const int *blockoffset,
101  DCTELEM *block /*align 16*/,
102  int stride, const uint8_t nnzc[15 * 8]);
103  void (*h264_luma_dc_dequant_idct)(DCTELEM *output,
104  DCTELEM *input /*align 16*/, int qmul);
105  void (*h264_chroma_dc_dequant_idct)(DCTELEM *block, int qmul);
106 } H264DSPContext;
107 
108 void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
109  const int chroma_format_idc);
110 void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
111  const int chroma_format_idc);
112 void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth,
113  const int chroma_format_idc);
114 void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth,
115  const int chroma_format_idc);
116 
117 #endif /* AVCODEC_H264DSP_H */
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