2 * H.26L/H.264/AVC/JVT/14496-10/... decoder
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 # define MCFUNC(n) FUNC(n ## _420)
27 # define MCFUNC(n) FUNC(n ## _422)
29 # define MCFUNC(n) FUNC(n ## _444)
33 #define mc_part MCFUNC(mc_part)
35 static void mc_part(H264Context *h, int n, int square,
36 int height, int delta,
37 uint8_t *dest_y, uint8_t *dest_cb,
39 int x_offset, int y_offset,
40 qpel_mc_func *qpix_put,
41 h264_chroma_mc_func chroma_put,
42 qpel_mc_func *qpix_avg,
43 h264_chroma_mc_func chroma_avg,
44 h264_weight_func *weight_op,
45 h264_biweight_func *weight_avg,
48 if ((h->use_weight == 2 && list0 && list1 &&
49 (h->implicit_weight[h->ref_cache[0][scan8[n]]][h->ref_cache[1][scan8[n]]][h->s.mb_y & 1] != 32)) ||
51 mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
52 x_offset, y_offset, qpix_put, chroma_put,
53 weight_op[0], weight_op[1], weight_avg[0],
54 weight_avg[1], list0, list1, PIXEL_SHIFT, CHROMA_IDC);
56 mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
57 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
58 chroma_avg, list0, list1, PIXEL_SHIFT, CHROMA_IDC);
61 static void MCFUNC(hl_motion)(H264Context *h, uint8_t *dest_y,
62 uint8_t *dest_cb, uint8_t *dest_cr,
63 qpel_mc_func(*qpix_put)[16],
64 h264_chroma_mc_func(*chroma_put),
65 qpel_mc_func(*qpix_avg)[16],
66 h264_chroma_mc_func(*chroma_avg),
67 h264_weight_func *weight_op,
68 h264_biweight_func *weight_avg)
70 MpegEncContext *const s = &h->s;
71 const int mb_xy = h->mb_xy;
72 const int mb_type = s->current_picture.f.mb_type[mb_xy];
74 av_assert2(IS_INTER(mb_type));
76 if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
78 prefetch_motion(h, 0, PIXEL_SHIFT, CHROMA_IDC);
80 if (IS_16X16(mb_type)) {
81 mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
82 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
83 weight_op, weight_avg,
84 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
85 } else if (IS_16X8(mb_type)) {
86 mc_part(h, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,
87 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
88 weight_op, weight_avg,
89 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
90 mc_part(h, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,
91 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
92 weight_op, weight_avg,
93 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
94 } else if (IS_8X16(mb_type)) {
95 mc_part(h, 0, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
96 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
97 &weight_op[1], &weight_avg[1],
98 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
99 mc_part(h, 4, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
100 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
101 &weight_op[1], &weight_avg[1],
102 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
106 av_assert2(IS_8X8(mb_type));
108 for (i = 0; i < 4; i++) {
109 const int sub_mb_type = h->sub_mb_type[i];
111 int x_offset = (i & 1) << 2;
112 int y_offset = (i & 2) << 1;
114 if (IS_SUB_8X8(sub_mb_type)) {
115 mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr,
117 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
118 &weight_op[1], &weight_avg[1],
119 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
120 } else if (IS_SUB_8X4(sub_mb_type)) {
121 mc_part(h, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,
123 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
124 &weight_op[1], &weight_avg[1],
125 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
126 mc_part(h, n + 2, 0, 4, 4 << PIXEL_SHIFT,
127 dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,
128 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
129 &weight_op[1], &weight_avg[1],
130 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
131 } else if (IS_SUB_4X8(sub_mb_type)) {
132 mc_part(h, n, 0, 8, 4 * h->mb_linesize,
133 dest_y, dest_cb, dest_cr, x_offset, y_offset,
134 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
135 &weight_op[2], &weight_avg[2],
136 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
137 mc_part(h, n + 1, 0, 8, 4 * h->mb_linesize,
138 dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,
139 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
140 &weight_op[2], &weight_avg[2],
141 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
144 av_assert2(IS_SUB_4X4(sub_mb_type));
145 for (j = 0; j < 4; j++) {
146 int sub_x_offset = x_offset + 2 * (j & 1);
147 int sub_y_offset = y_offset + (j & 2);
148 mc_part(h, n + j, 1, 4, 0,
149 dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
150 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
151 &weight_op[2], &weight_avg[2],
152 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
158 prefetch_motion(h, 1, PIXEL_SHIFT, CHROMA_IDC);