/*
* VP9 compatible video decoder
*
* Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
* Copyright (C) 2013 Clément Bœsch <u pkh me>
*
* 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);
}
}
}