172 lines
7.7 KiB
C
172 lines
7.7 KiB
C
/*
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* VP9 compatible video decoder
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*
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* Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
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* Copyright (C) 2013 Clément Bœsch <u pkh me>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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static void FN(inter_pred)(AVCodecContext *ctx)
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{
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static const uint8_t bwlog_tab[2][N_BS_SIZES] = {
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{ 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4 },
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{ 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4 },
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};
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VP9Context *s = ctx->priv_data;
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VP9Block *b = s->b;
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int row = s->row, col = s->col;
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ThreadFrame *tref1 = &s->refs[s->refidx[b->ref[0]]], *tref2;
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AVFrame *ref1 = tref1->f, *ref2;
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int w1 = ref1->width, h1 = ref1->height, w2, h2;
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ptrdiff_t ls_y = s->y_stride, ls_uv = s->uv_stride;
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if (b->comp) {
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tref2 = &s->refs[s->refidx[b->ref[1]]];
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ref2 = tref2->f;
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w2 = ref2->width;
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h2 = ref2->height;
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}
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// y inter pred
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if (b->bs > BS_8x8) {
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if (b->bs == BS_8x4) {
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mc_luma_dir(s, mc[3][b->filter][0], s->dst[0], ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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row << 3, col << 3, &b->mv[0][0], 8, 4, w1, h1, 0);
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mc_luma_dir(s, mc[3][b->filter][0],
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s->dst[0] + 4 * ls_y, ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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(row << 3) + 4, col << 3, &b->mv[2][0], 8, 4, w1, h1, 0);
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if (b->comp) {
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mc_luma_dir(s, mc[3][b->filter][1], s->dst[0], ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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row << 3, col << 3, &b->mv[0][1], 8, 4, w2, h2, 1);
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mc_luma_dir(s, mc[3][b->filter][1],
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s->dst[0] + 4 * ls_y, ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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(row << 3) + 4, col << 3, &b->mv[2][1], 8, 4, w2, h2, 1);
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}
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} else if (b->bs == BS_4x8) {
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mc_luma_dir(s, mc[4][b->filter][0], s->dst[0], ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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row << 3, col << 3, &b->mv[0][0], 4, 8, w1, h1, 0);
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mc_luma_dir(s, mc[4][b->filter][0], s->dst[0] + 4, ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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row << 3, (col << 3) + 4, &b->mv[1][0], 4, 8, w1, h1, 0);
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if (b->comp) {
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mc_luma_dir(s, mc[4][b->filter][1], s->dst[0], ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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row << 3, col << 3, &b->mv[0][1], 4, 8, w2, h2, 1);
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mc_luma_dir(s, mc[4][b->filter][1], s->dst[0] + 4, ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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row << 3, (col << 3) + 4, &b->mv[1][1], 4, 8, w2, h2, 1);
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}
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} else {
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av_assert2(b->bs == BS_4x4);
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// FIXME if two horizontally adjacent blocks have the same MV,
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// do a w8 instead of a w4 call
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mc_luma_dir(s, mc[4][b->filter][0], s->dst[0], ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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row << 3, col << 3, &b->mv[0][0], 4, 4, w1, h1, 0);
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mc_luma_dir(s, mc[4][b->filter][0], s->dst[0] + 4, ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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row << 3, (col << 3) + 4, &b->mv[1][0], 4, 4, w1, h1, 0);
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mc_luma_dir(s, mc[4][b->filter][0],
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s->dst[0] + 4 * ls_y, ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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(row << 3) + 4, col << 3, &b->mv[2][0], 4, 4, w1, h1, 0);
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mc_luma_dir(s, mc[4][b->filter][0],
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s->dst[0] + 4 * ls_y + 4, ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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(row << 3) + 4, (col << 3) + 4, &b->mv[3][0], 4, 4, w1, h1, 0);
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if (b->comp) {
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mc_luma_dir(s, mc[4][b->filter][1], s->dst[0], ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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row << 3, col << 3, &b->mv[0][1], 4, 4, w2, h2, 1);
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mc_luma_dir(s, mc[4][b->filter][1], s->dst[0] + 4, ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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row << 3, (col << 3) + 4, &b->mv[1][1], 4, 4, w2, h2, 1);
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mc_luma_dir(s, mc[4][b->filter][1],
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s->dst[0] + 4 * ls_y, ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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(row << 3) + 4, col << 3, &b->mv[2][1], 4, 4, w2, h2, 1);
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mc_luma_dir(s, mc[4][b->filter][1],
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s->dst[0] + 4 * ls_y + 4, ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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(row << 3) + 4, (col << 3) + 4, &b->mv[3][1], 4, 4, w2, h2, 1);
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}
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}
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} else {
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int bwl = bwlog_tab[0][b->bs];
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int bw = bwh_tab[0][b->bs][0] * 4, bh = bwh_tab[0][b->bs][1] * 4;
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mc_luma_dir(s, mc[bwl][b->filter][0], s->dst[0], ls_y,
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ref1->data[0], ref1->linesize[0], tref1,
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row << 3, col << 3, &b->mv[0][0],bw, bh, w1, h1, 0);
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if (b->comp)
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mc_luma_dir(s, mc[bwl][b->filter][1], s->dst[0], ls_y,
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ref2->data[0], ref2->linesize[0], tref2,
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row << 3, col << 3, &b->mv[0][1], bw, bh, w2, h2, 1);
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}
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// uv inter pred
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{
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int bwl = bwlog_tab[1][b->bs];
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int bw = bwh_tab[1][b->bs][0] * 4, bh = bwh_tab[1][b->bs][1] * 4;
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VP56mv mvuv;
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w1 = (w1 + 1) >> 1;
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h1 = (h1 + 1) >> 1;
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if (b->comp) {
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w2 = (w2 + 1) >> 1;
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h2 = (h2 + 1) >> 1;
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}
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if (b->bs > BS_8x8) {
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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);
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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);
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} else {
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mvuv = b->mv[0][0];
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}
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mc_chroma_dir(s, mc[bwl][b->filter][0],
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s->dst[1], s->dst[2], ls_uv,
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ref1->data[1], ref1->linesize[1],
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ref1->data[2], ref1->linesize[2], tref1,
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row << 2, col << 2, &mvuv, bw, bh, w1, h1, 0);
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if (b->comp) {
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if (b->bs > BS_8x8) {
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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);
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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);
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} else {
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mvuv = b->mv[0][1];
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}
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mc_chroma_dir(s, mc[bwl][b->filter][1],
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s->dst[1], s->dst[2], ls_uv,
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ref2->data[1], ref2->linesize[1],
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ref2->data[2], ref2->linesize[2], tref2,
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row << 2, col << 2, &mvuv, bw, bh, w2, h2, 1);
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}
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}
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}
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