/* * VP9 compatible video decoder * * Copyright (C) 2013 Ronald S. Bultje * Copyright (C) 2013 Clément Bœsch * * This file is part of FFmpeg. * * FFmpeg 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. * * FFmpeg 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ static void FN(inter_pred)(AVCodecContext *ctx) { static const uint8_t bwlog_tab[2][N_BS_SIZES] = { { 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 }, { 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4 }, }; VP9Context *s = ctx->priv_data; VP9Block *b = s->b; int row = s->row, col = s->col; ThreadFrame *tref1 = &s->refs[s->refidx[b->ref[0]]], *tref2; AVFrame *ref1 = tref1->f, *ref2; int w1 = ref1->width, h1 = ref1->height, w2, h2; ptrdiff_t ls_y = s->y_stride, ls_uv = s->uv_stride; if (b->comp) { tref2 = &s->refs[s->refidx[b->ref[1]]]; ref2 = tref2->f; w2 = ref2->width; h2 = ref2->height; } // y inter pred if (b->bs > BS_8x8) { if (b->bs == BS_8x4) { mc_luma_dir(s, mc[3][b->filter][0], s->dst[0], ls_y, ref1->data[0], ref1->linesize[0], tref1, row << 3, col << 3, &b->mv[0][0], 8, 4, w1, h1, 0); mc_luma_dir(s, mc[3][b->filter][0], s->dst[0] + 4 * ls_y, ls_y, ref1->data[0], ref1->linesize[0], tref1, (row << 3) + 4, col << 3, &b->mv[2][0], 8, 4, w1, h1, 0); if (b->comp) { mc_luma_dir(s, mc[3][b->filter][1], s->dst[0], ls_y, ref2->data[0], ref2->linesize[0], tref2, row << 3, col << 3, &b->mv[0][1], 8, 4, w2, h2, 1); mc_luma_dir(s, mc[3][b->filter][1], s->dst[0] + 4 * ls_y, ls_y, ref2->data[0], ref2->linesize[0], tref2, (row << 3) + 4, col << 3, &b->mv[2][1], 8, 4, w2, h2, 1); } } else if (b->bs == BS_4x8) { mc_luma_dir(s, mc[4][b->filter][0], s->dst[0], ls_y, ref1->data[0], ref1->linesize[0], tref1, row << 3, col << 3, &b->mv[0][0], 4, 8, w1, h1, 0); mc_luma_dir(s, mc[4][b->filter][0], s->dst[0] + 4, ls_y, ref1->data[0], ref1->linesize[0], tref1, row << 3, (col << 3) + 4, &b->mv[1][0], 4, 8, w1, h1, 0); if (b->comp) { mc_luma_dir(s, mc[4][b->filter][1], s->dst[0], ls_y, ref2->data[0], ref2->linesize[0], tref2, row << 3, col << 3, &b->mv[0][1], 4, 8, w2, h2, 1); mc_luma_dir(s, mc[4][b->filter][1], s->dst[0] + 4, ls_y, ref2->data[0], ref2->linesize[0], tref2, row << 3, (col << 3) + 4, &b->mv[1][1], 4, 8, w2, h2, 1); } } else { av_assert2(b->bs == BS_4x4); // FIXME if two horizontally adjacent blocks have the same MV, // do a w8 instead of a w4 call mc_luma_dir(s, mc[4][b->filter][0], s->dst[0], ls_y, ref1->data[0], ref1->linesize[0], tref1, row << 3, col << 3, &b->mv[0][0], 4, 4, w1, h1, 0); mc_luma_dir(s, mc[4][b->filter][0], s->dst[0] + 4, ls_y, ref1->data[0], ref1->linesize[0], tref1, row << 3, (col << 3) + 4, &b->mv[1][0], 4, 4, w1, h1, 0); mc_luma_dir(s, mc[4][b->filter][0], s->dst[0] + 4 * ls_y, ls_y, ref1->data[0], ref1->linesize[0], tref1, (row << 3) + 4, col << 3, &b->mv[2][0], 4, 4, w1, h1, 0); mc_luma_dir(s, mc[4][b->filter][0], s->dst[0] + 4 * ls_y + 4, ls_y, ref1->data[0], ref1->linesize[0], tref1, (row << 3) + 4, (col << 3) + 4, &b->mv[3][0], 4, 4, w1, h1, 0); if (b->comp) { mc_luma_dir(s, mc[4][b->filter][1], s->dst[0], ls_y, ref2->data[0], ref2->linesize[0], tref2, row << 3, col << 3, &b->mv[0][1], 4, 4, w2, h2, 1); mc_luma_dir(s, mc[4][b->filter][1], s->dst[0] + 4, ls_y, ref2->data[0], ref2->linesize[0], tref2, row << 3, (col << 3) + 4, &b->mv[1][1], 4, 4, w2, h2, 1); mc_luma_dir(s, mc[4][b->filter][1], s->dst[0] + 4 * ls_y, ls_y, ref2->data[0], ref2->linesize[0], tref2, (row << 3) + 4, col << 3, &b->mv[2][1], 4, 4, w2, h2, 1); mc_luma_dir(s, mc[4][b->filter][1], s->dst[0] + 4 * ls_y + 4, ls_y, ref2->data[0], ref2->linesize[0], tref2, (row << 3) + 4, (col << 3) + 4, &b->mv[3][1], 4, 4, w2, h2, 1); } } } else { int bwl = bwlog_tab[0][b->bs]; int bw = bwh_tab[0][b->bs][0] * 4, bh = bwh_tab[0][b->bs][1] * 4; mc_luma_dir(s, mc[bwl][b->filter][0], s->dst[0], ls_y, ref1->data[0], ref1->linesize[0], tref1, row << 3, col << 3, &b->mv[0][0],bw, bh, w1, h1, 0); if (b->comp) mc_luma_dir(s, mc[bwl][b->filter][1], s->dst[0], ls_y, ref2->data[0], ref2->linesize[0], tref2, row << 3, col << 3, &b->mv[0][1], bw, bh, w2, h2, 1); } // uv inter pred { int bwl = bwlog_tab[1][b->bs]; int bw = bwh_tab[1][b->bs][0] * 4, bh = bwh_tab[1][b->bs][1] * 4; VP56mv mvuv; w1 = (w1 + 1) >> 1; h1 = (h1 + 1) >> 1; if (b->comp) { w2 = (w2 + 1) >> 1; h2 = (h2 + 1) >> 1; } if (b->bs > BS_8x8) { mvuv.x = ROUNDED_DIV(b->mv[0][0].x + b->mv[1][0].x + b->mv[2][0].x + b->mv[3][0].x, 4); mvuv.y = ROUNDED_DIV(b->mv[0][0].y + b->mv[1][0].y + b->mv[2][0].y + b->mv[3][0].y, 4); } else { mvuv = b->mv[0][0]; } mc_chroma_dir(s, mc[bwl][b->filter][0], s->dst[1], s->dst[2], ls_uv, ref1->data[1], ref1->linesize[1], ref1->data[2], ref1->linesize[2], tref1, row << 2, col << 2, &mvuv, bw, bh, w1, h1, 0); if (b->comp) { if (b->bs > BS_8x8) { mvuv.x = ROUNDED_DIV(b->mv[0][1].x + b->mv[1][1].x + b->mv[2][1].x + b->mv[3][1].x, 4); mvuv.y = ROUNDED_DIV(b->mv[0][1].y + b->mv[1][1].y + b->mv[2][1].y + b->mv[3][1].y, 4); } else { mvuv = b->mv[0][1]; } mc_chroma_dir(s, mc[bwl][b->filter][1], s->dst[1], s->dst[2], ls_uv, ref2->data[1], ref2->linesize[1], ref2->data[2], ref2->linesize[2], tref2, row << 2, col << 2, &mvuv, bw, bh, w2, h2, 1); } } }