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
27 # define MCFUNC(n) FUNC(n ## _420)
29 # define MCFUNC(n) FUNC(n ## _422)
31 # define MCFUNC(n) FUNC(n ## _444)
35 #define mc_part MCFUNC(mc_part)
37 static void mc_part(H264Context *h, H264SliceContext *sl,
39 int height, int delta,
40 uint8_t *dest_y, uint8_t *dest_cb,
42 int x_offset, int y_offset,
43 qpel_mc_func *qpix_put,
44 h264_chroma_mc_func chroma_put,
45 qpel_mc_func *qpix_avg,
46 h264_chroma_mc_func chroma_avg,
47 h264_weight_func *weight_op,
48 h264_biweight_func *weight_avg,
51 if ((sl->use_weight == 2 && list0 && list1 &&
52 (sl->implicit_weight[h->ref_cache[0][scan8[n]]][h->ref_cache[1][scan8[n]]][h->mb_y & 1] != 32)) ||
54 mc_part_weighted(h, sl, n, square, height, delta, dest_y, dest_cb, dest_cr,
55 x_offset, y_offset, qpix_put, chroma_put,
56 weight_op[0], weight_op[1], weight_avg[0],
57 weight_avg[1], list0, list1, PIXEL_SHIFT, CHROMA_IDC);
59 mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
60 x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
61 chroma_avg, list0, list1, PIXEL_SHIFT, CHROMA_IDC);
64 static void MCFUNC(hl_motion)(H264Context *h, H264SliceContext *sl,
66 uint8_t *dest_cb, uint8_t *dest_cr,
67 qpel_mc_func(*qpix_put)[16],
68 h264_chroma_mc_func(*chroma_put),
69 qpel_mc_func(*qpix_avg)[16],
70 h264_chroma_mc_func(*chroma_avg),
71 h264_weight_func *weight_op,
72 h264_biweight_func *weight_avg)
74 const int mb_xy = h->mb_xy;
75 const int mb_type = h->cur_pic.mb_type[mb_xy];
77 av_assert2(IS_INTER(mb_type));
79 if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))
81 prefetch_motion(h, 0, PIXEL_SHIFT, CHROMA_IDC);
83 if (IS_16X16(mb_type)) {
84 mc_part(h, sl, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
85 qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
86 weight_op, weight_avg,
87 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
88 } else if (IS_16X8(mb_type)) {
89 mc_part(h, sl, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,
90 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
91 weight_op, weight_avg,
92 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
93 mc_part(h, sl, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,
94 qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
95 weight_op, weight_avg,
96 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
97 } else if (IS_8X16(mb_type)) {
98 mc_part(h, sl, 0, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
99 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
100 &weight_op[1], &weight_avg[1],
101 IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
102 mc_part(h, sl, 4, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
103 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
104 &weight_op[1], &weight_avg[1],
105 IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
109 av_assert2(IS_8X8(mb_type));
111 for (i = 0; i < 4; i++) {
112 const int sub_mb_type = h->sub_mb_type[i];
114 int x_offset = (i & 1) << 2;
115 int y_offset = (i & 2) << 1;
117 if (IS_SUB_8X8(sub_mb_type)) {
118 mc_part(h, sl, n, 1, 8, 0, dest_y, dest_cb, dest_cr,
120 qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
121 &weight_op[1], &weight_avg[1],
122 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
123 } else if (IS_SUB_8X4(sub_mb_type)) {
124 mc_part(h, sl, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,
126 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
127 &weight_op[1], &weight_avg[1],
128 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
129 mc_part(h, sl, n + 2, 0, 4, 4 << PIXEL_SHIFT,
130 dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,
131 qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
132 &weight_op[1], &weight_avg[1],
133 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
134 } else if (IS_SUB_4X8(sub_mb_type)) {
135 mc_part(h, sl, n, 0, 8, 4 * h->mb_linesize,
136 dest_y, dest_cb, dest_cr, x_offset, y_offset,
137 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
138 &weight_op[2], &weight_avg[2],
139 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
140 mc_part(h, sl, n + 1, 0, 8, 4 * h->mb_linesize,
141 dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,
142 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
143 &weight_op[2], &weight_avg[2],
144 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
147 av_assert2(IS_SUB_4X4(sub_mb_type));
148 for (j = 0; j < 4; j++) {
149 int sub_x_offset = x_offset + 2 * (j & 1);
150 int sub_y_offset = y_offset + (j & 2);
151 mc_part(h, sl, n + j, 1, 4, 0,
152 dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
153 qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
154 &weight_op[2], &weight_avg[2],
155 IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
161 prefetch_motion(h, 1, PIXEL_SHIFT, CHROMA_IDC);