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- /*
- * H.26L/H.264/AVC/JVT/14496-10/... decoder
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
- #undef MCFUNC
-
- #if CHROMA_IDC == 1
- # define MCFUNC(n) FUNC(n ## _420)
- #elif CHROMA_IDC == 2
- # define MCFUNC(n) FUNC(n ## _422)
- #elif CHROMA_IDC == 3
- # define MCFUNC(n) FUNC(n ## _444)
- #endif
-
- #undef mc_part
- #define mc_part MCFUNC(mc_part)
-
- static void mc_part(H264Context *h, int n, int square,
- int height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb,
- uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put,
- h264_chroma_mc_func chroma_put,
- qpel_mc_func *qpix_avg,
- h264_chroma_mc_func chroma_avg,
- h264_weight_func *weight_op,
- h264_biweight_func *weight_avg,
- int list0, int list1)
- {
- if ((h->use_weight == 2 && list0 && list1 &&
- (h->implicit_weight[h->ref_cache[0][scan8[n]]][h->ref_cache[1][scan8[n]]][h->mb_y & 1] != 32)) ||
- h->use_weight == 1)
- mc_part_weighted(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put,
- weight_op[0], weight_op[1], weight_avg[0],
- weight_avg[1], list0, list1, PIXEL_SHIFT, CHROMA_IDC);
- else
- mc_part_std(h, n, square, height, delta, dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put, qpix_avg,
- chroma_avg, list0, list1, PIXEL_SHIFT, CHROMA_IDC);
- }
-
- static void MCFUNC(hl_motion)(H264Context *h, uint8_t *dest_y,
- uint8_t *dest_cb, uint8_t *dest_cr,
- qpel_mc_func(*qpix_put)[16],
- h264_chroma_mc_func(*chroma_put),
- qpel_mc_func(*qpix_avg)[16],
- h264_chroma_mc_func(*chroma_avg),
- h264_weight_func *weight_op,
- h264_biweight_func *weight_avg)
- {
- const int mb_xy = h->mb_xy;
- const int mb_type = h->cur_pic.mb_type[mb_xy];
-
- assert(IS_INTER(mb_type));
-
- if (HAVE_THREADS && (h->avctx->active_thread_type & FF_THREAD_FRAME))
- await_references(h);
- prefetch_motion(h, 0, PIXEL_SHIFT, CHROMA_IDC);
-
- if (IS_16X16(mb_type)) {
- mc_part(h, 0, 1, 16, 0, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
- weight_op, weight_avg,
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- } else if (IS_16X8(mb_type)) {
- mc_part(h, 0, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
- weight_op, weight_avg,
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- mc_part(h, 8, 0, 8, 8 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr, 0, 4,
- qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
- weight_op, weight_avg,
- IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
- } else if (IS_8X16(mb_type)) {
- mc_part(h, 0, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[1], &weight_avg[1],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- mc_part(h, 4, 0, 16, 8 * h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[1], &weight_avg[1],
- IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
- } else {
- int i;
-
- assert(IS_8X8(mb_type));
-
- for (i = 0; i < 4; i++) {
- const int sub_mb_type = h->sub_mb_type[i];
- const int n = 4 * i;
- int x_offset = (i & 1) << 2;
- int y_offset = (i & 2) << 1;
-
- if (IS_SUB_8X8(sub_mb_type)) {
- mc_part(h, n, 1, 8, 0, dest_y, dest_cb, dest_cr,
- x_offset, y_offset,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[1], &weight_avg[1],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- } else if (IS_SUB_8X4(sub_mb_type)) {
- mc_part(h, n, 0, 4, 4 << PIXEL_SHIFT, dest_y, dest_cb, dest_cr,
- x_offset, y_offset,
- qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
- &weight_op[1], &weight_avg[1],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- mc_part(h, n + 2, 0, 4, 4 << PIXEL_SHIFT,
- dest_y, dest_cb, dest_cr, x_offset, y_offset + 2,
- qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
- &weight_op[1], &weight_avg[1],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- } else if (IS_SUB_4X8(sub_mb_type)) {
- mc_part(h, n, 0, 8, 4 * h->mb_linesize,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[2], &weight_avg[2],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- mc_part(h, n + 1, 0, 8, 4 * h->mb_linesize,
- dest_y, dest_cb, dest_cr, x_offset + 2, y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[2], &weight_avg[2],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- } else {
- int j;
- assert(IS_SUB_4X4(sub_mb_type));
- for (j = 0; j < 4; j++) {
- int sub_x_offset = x_offset + 2 * (j & 1);
- int sub_y_offset = y_offset + (j & 2);
- mc_part(h, n + j, 1, 4, 0,
- dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[2], &weight_avg[2],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }
- }
- }
- }
-
- prefetch_motion(h, 1, PIXEL_SHIFT, CHROMA_IDC);
- }
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