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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / h264dsp.h
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DM		 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
32typedef void (*h264_weight_func)(uint8_t *block, int stride, int height,
33 int log2_denom, int weight, int offset);
34typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src,
35 int stride, int height, int log2_denom,
36 int weightd, int weights, int offset);
37
38/**
39 * Context for storing H.264 DSP functions
40 */
41typedef struct H264DSPContext {
42 /* weighted MC */
43 h264_weight_func weight_h264_pixels_tab[4];
44 h264_biweight_func biweight_h264_pixels_tab[4];
45
46 /* loop filter */
47 void (*h264_v_loop_filter_luma)(uint8_t *pix /*align 16*/, int stride,
48 int alpha, int beta, int8_t *tc0);
49 void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, int stride,
50 int alpha, int beta, int8_t *tc0);
51 void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, int stride,
52 int alpha, int beta, int8_t *tc0);
53 /* v/h_loop_filter_luma_intra: align 16 */
54 void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride,
55 int alpha, int beta);
56 void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride,
57 int alpha, int beta);
58 void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/,
59 int stride, int alpha, int beta);
60 void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, int stride,
61 int alpha, int beta, int8_t *tc0);
62 void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, int stride,
63 int alpha, int beta, int8_t *tc0);
64 void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/,
65 int stride, int alpha, int beta,
66 int8_t *tc0);
67 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
68 int stride, int alpha, int beta);
69 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/,
70 int stride, int alpha, int beta);
71 void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/,
72 int stride, int alpha, int beta);
73 // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
74 void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40],
75 int8_t ref[2][40], int16_t mv[2][40][2],
76 int bidir, int edges, int step,
77 int mask_mv0, int mask_mv1, int field);
78
79 /* IDCT */
80 void (*h264_idct_add)(uint8_t *dst /*align 4*/,
81 int16_t *block /*align 16*/, int stride);
82 void (*h264_idct8_add)(uint8_t *dst /*align 8*/,
83 int16_t *block /*align 16*/, int stride);
84 void (*h264_idct_dc_add)(uint8_t *dst /*align 4*/,
85 int16_t *block /*align 16*/, int stride);
86 void (*h264_idct8_dc_add)(uint8_t *dst /*align 8*/,
87 int16_t *block /*align 16*/, int stride);
88
89 void (*h264_idct_add16)(uint8_t *dst /*align 16*/, const int *blockoffset,
90 int16_t *block /*align 16*/, int stride,
91 const uint8_t nnzc[15 * 8]);
92 void (*h264_idct8_add4)(uint8_t *dst /*align 16*/, const int *blockoffset,
93 int16_t *block /*align 16*/, int stride,
94 const uint8_t nnzc[15 * 8]);
95 void (*h264_idct_add8)(uint8_t **dst /*align 16*/, const int *blockoffset,
96 int16_t *block /*align 16*/, int stride,
97 const uint8_t nnzc[15 * 8]);
98 void (*h264_idct_add16intra)(uint8_t *dst /*align 16*/, const int *blockoffset,
99 int16_t *block /*align 16*/,
100 int stride, const uint8_t nnzc[15 * 8]);
101 void (*h264_luma_dc_dequant_idct)(int16_t *output,
102 int16_t *input /*align 16*/, int qmul);
103 void (*h264_chroma_dc_dequant_idct)(int16_t *block, int qmul);
104
105 /* bypass-transform */
106 void (*h264_add_pixels8_clear)(uint8_t *dst, int16_t *block, int stride);
107 void (*h264_add_pixels4_clear)(uint8_t *dst, int16_t *block, int stride);
108
109 /**
110 * Search buf from the start for up to size bytes. Return the index
111 * of a zero byte, or >= size if not found. Ideally, use lookahead
112 * to filter out any zero bytes that are known to not be followed by
113 * one or more further zero bytes and a one byte. Better still, filter
114 * out any bytes that form the trailing_zero_8bits syntax element too.
115 */
116 int (*startcode_find_candidate)(const uint8_t *buf, int size);
117} H264DSPContext;
118
119void ff_h264dsp_init(H264DSPContext *c, const int bit_depth,
120 const int chroma_format_idc);
121void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth,
122 const int chroma_format_idc);
123void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
124 const int chroma_format_idc);
125void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth,
126 const int chroma_format_idc);
127void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth,
128 const int chroma_format_idc);
129
130#endif /* AVCODEC_H264DSP_H */
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