953 lines
36 KiB
C
953 lines
36 KiB
C
/*
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* VC-1 and WMV3 decoder
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* Copyright (c) 2011 Mashiat Sarker Shakkhar
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* Copyright (c) 2006-2007 Konstantin Shishkov
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* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
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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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/**
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* @file
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* VC-1 and WMV3 block decoding routines
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*/
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#include "avcodec.h"
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#include "h264chroma.h"
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#include "mathops.h"
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#include "mpegvideo.h"
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#include "vc1.h"
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/** Do motion compensation over 1 macroblock
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* Mostly adapted hpel_motion and qpel_motion from mpegvideo.c
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*/
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void ff_vc1_mc_1mv(VC1Context *v, int dir)
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{
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MpegEncContext *s = &v->s;
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H264ChromaContext *h264chroma = &v->h264chroma;
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uint8_t *srcY, *srcU, *srcV;
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int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
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int v_edge_pos = s->v_edge_pos >> v->field_mode;
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int i;
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uint8_t (*luty)[256], (*lutuv)[256];
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int use_ic;
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if ((!v->field_mode ||
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(v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) &&
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!v->s.last_picture.f->data[0])
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return;
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mx = s->mv[dir][0][0];
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my = s->mv[dir][0][1];
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// store motion vectors for further use in B frames
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if (s->pict_type == AV_PICTURE_TYPE_P) {
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for (i = 0; i < 4; i++) {
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s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][0] = mx;
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s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][1] = my;
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}
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}
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uvmx = (mx + ((mx & 3) == 3)) >> 1;
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uvmy = (my + ((my & 3) == 3)) >> 1;
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v->luma_mv[s->mb_x][0] = uvmx;
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v->luma_mv[s->mb_x][1] = uvmy;
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if (v->field_mode &&
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v->cur_field_type != v->ref_field_type[dir]) {
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my = my - 2 + 4 * v->cur_field_type;
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uvmy = uvmy - 2 + 4 * v->cur_field_type;
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}
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// fastuvmc shall be ignored for interlaced frame picture
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if (v->fastuvmc && (v->fcm != ILACE_FRAME)) {
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uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1));
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uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1));
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}
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if (!dir) {
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if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) {
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srcY = s->current_picture.f->data[0];
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srcU = s->current_picture.f->data[1];
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srcV = s->current_picture.f->data[2];
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luty = v->curr_luty;
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lutuv = v->curr_lutuv;
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use_ic = *v->curr_use_ic;
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} else {
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srcY = s->last_picture.f->data[0];
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srcU = s->last_picture.f->data[1];
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srcV = s->last_picture.f->data[2];
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luty = v->last_luty;
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lutuv = v->last_lutuv;
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use_ic = v->last_use_ic;
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}
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} else {
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srcY = s->next_picture.f->data[0];
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srcU = s->next_picture.f->data[1];
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srcV = s->next_picture.f->data[2];
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luty = v->next_luty;
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lutuv = v->next_lutuv;
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use_ic = v->next_use_ic;
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}
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if (!srcY || !srcU) {
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av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n");
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return;
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}
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src_x = s->mb_x * 16 + (mx >> 2);
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src_y = s->mb_y * 16 + (my >> 2);
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uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
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uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
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if (v->profile != PROFILE_ADVANCED) {
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src_x = av_clip( src_x, -16, s->mb_width * 16);
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src_y = av_clip( src_y, -16, s->mb_height * 16);
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uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
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uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
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} else {
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src_x = av_clip( src_x, -17, s->avctx->coded_width);
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src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
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uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
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uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
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}
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srcY += src_y * s->linesize + src_x;
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srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
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srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
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if (v->field_mode && v->ref_field_type[dir]) {
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srcY += s->current_picture_ptr->f->linesize[0];
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srcU += s->current_picture_ptr->f->linesize[1];
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srcV += s->current_picture_ptr->f->linesize[2];
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}
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/* for grayscale we should not try to read from unknown area */
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if (s->flags & CODEC_FLAG_GRAY) {
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srcU = s->edge_emu_buffer + 18 * s->linesize;
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srcV = s->edge_emu_buffer + 18 * s->linesize;
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}
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if (v->rangeredfrm || use_ic
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|| s->h_edge_pos < 22 || v_edge_pos < 22
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|| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel * 3
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|| (unsigned)(src_y - 1) > v_edge_pos - (my&3) - 16 - 3) {
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uint8_t *ubuf = s->edge_emu_buffer + 19 * s->linesize;
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uint8_t *vbuf = ubuf + 9 * s->uvlinesize;
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srcY -= s->mspel * (1 + s->linesize);
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s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
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s->linesize, s->linesize,
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17 + s->mspel * 2, 17 + s->mspel * 2,
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src_x - s->mspel, src_y - s->mspel,
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s->h_edge_pos, v_edge_pos);
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srcY = s->edge_emu_buffer;
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s->vdsp.emulated_edge_mc(ubuf, srcU,
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s->uvlinesize, s->uvlinesize,
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8 + 1, 8 + 1,
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uvsrc_x, uvsrc_y,
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s->h_edge_pos >> 1, v_edge_pos >> 1);
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s->vdsp.emulated_edge_mc(vbuf, srcV,
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s->uvlinesize, s->uvlinesize,
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8 + 1, 8 + 1,
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uvsrc_x, uvsrc_y,
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s->h_edge_pos >> 1, v_edge_pos >> 1);
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srcU = ubuf;
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srcV = vbuf;
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/* if we deal with range reduction we need to scale source blocks */
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if (v->rangeredfrm) {
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int i, j;
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uint8_t *src, *src2;
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src = srcY;
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for (j = 0; j < 17 + s->mspel * 2; j++) {
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for (i = 0; i < 17 + s->mspel * 2; i++)
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src[i] = ((src[i] - 128) >> 1) + 128;
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src += s->linesize;
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}
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src = srcU;
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src2 = srcV;
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for (j = 0; j < 9; j++) {
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for (i = 0; i < 9; i++) {
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src[i] = ((src[i] - 128) >> 1) + 128;
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src2[i] = ((src2[i] - 128) >> 1) + 128;
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}
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src += s->uvlinesize;
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src2 += s->uvlinesize;
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}
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}
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/* if we deal with intensity compensation we need to scale source blocks */
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if (use_ic) {
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int i, j;
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uint8_t *src, *src2;
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src = srcY;
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for (j = 0; j < 17 + s->mspel * 2; j++) {
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int f = v->field_mode ? v->ref_field_type[dir] : ((j + src_y - s->mspel) & 1) ;
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for (i = 0; i < 17 + s->mspel * 2; i++)
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src[i] = luty[f][src[i]];
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src += s->linesize;
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}
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src = srcU;
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src2 = srcV;
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for (j = 0; j < 9; j++) {
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int f = v->field_mode ? v->ref_field_type[dir] : ((j + uvsrc_y) & 1);
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for (i = 0; i < 9; i++) {
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src[i] = lutuv[f][src[i]];
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src2[i] = lutuv[f][src2[i]];
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}
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src += s->uvlinesize;
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src2 += s->uvlinesize;
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}
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}
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srcY += s->mspel * (1 + s->linesize);
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}
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if (s->mspel) {
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dxy = ((my & 3) << 2) | (mx & 3);
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v->vc1dsp.put_vc1_mspel_pixels_tab[0][dxy](s->dest[0] , srcY , s->linesize, v->rnd);
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} else { // hpel mc - always used for luma
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dxy = (my & 2) | ((mx & 2) >> 1);
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if (!v->rnd)
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s->hdsp.put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
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else
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s->hdsp.put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
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}
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if (s->flags & CODEC_FLAG_GRAY) return;
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/* Chroma MC always uses qpel bilinear */
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uvmx = (uvmx & 3) << 1;
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uvmy = (uvmy & 3) << 1;
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if (!v->rnd) {
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h264chroma->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
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h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
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} else {
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v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
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v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
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}
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}
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static inline int median4(int a, int b, int c, int d)
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{
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if (a < b) {
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if (c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2;
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else return (FFMIN(b, c) + FFMAX(a, d)) / 2;
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} else {
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if (c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2;
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else return (FFMIN(a, c) + FFMAX(b, d)) / 2;
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}
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}
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/** Do motion compensation for 4-MV macroblock - luminance block
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*/
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void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg)
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{
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MpegEncContext *s = &v->s;
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uint8_t *srcY;
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int dxy, mx, my, src_x, src_y;
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int off;
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int fieldmv = (v->fcm == ILACE_FRAME) ? v->blk_mv_type[s->block_index[n]] : 0;
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int v_edge_pos = s->v_edge_pos >> v->field_mode;
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uint8_t (*luty)[256];
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int use_ic;
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if ((!v->field_mode ||
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(v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) &&
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!v->s.last_picture.f->data[0])
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return;
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mx = s->mv[dir][n][0];
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my = s->mv[dir][n][1];
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if (!dir) {
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if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) {
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srcY = s->current_picture.f->data[0];
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luty = v->curr_luty;
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use_ic = *v->curr_use_ic;
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} else {
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srcY = s->last_picture.f->data[0];
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luty = v->last_luty;
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use_ic = v->last_use_ic;
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}
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} else {
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srcY = s->next_picture.f->data[0];
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luty = v->next_luty;
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use_ic = v->next_use_ic;
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}
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if (!srcY) {
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av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n");
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return;
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}
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if (v->field_mode) {
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if (v->cur_field_type != v->ref_field_type[dir])
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my = my - 2 + 4 * v->cur_field_type;
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}
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if (s->pict_type == AV_PICTURE_TYPE_P && n == 3 && v->field_mode) {
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int same_count = 0, opp_count = 0, k;
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int chosen_mv[2][4][2], f;
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int tx, ty;
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for (k = 0; k < 4; k++) {
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f = v->mv_f[0][s->block_index[k] + v->blocks_off];
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chosen_mv[f][f ? opp_count : same_count][0] = s->mv[0][k][0];
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chosen_mv[f][f ? opp_count : same_count][1] = s->mv[0][k][1];
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opp_count += f;
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same_count += 1 - f;
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}
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f = opp_count > same_count;
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switch (f ? opp_count : same_count) {
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case 4:
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tx = median4(chosen_mv[f][0][0], chosen_mv[f][1][0],
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chosen_mv[f][2][0], chosen_mv[f][3][0]);
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ty = median4(chosen_mv[f][0][1], chosen_mv[f][1][1],
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chosen_mv[f][2][1], chosen_mv[f][3][1]);
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break;
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case 3:
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tx = mid_pred(chosen_mv[f][0][0], chosen_mv[f][1][0], chosen_mv[f][2][0]);
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ty = mid_pred(chosen_mv[f][0][1], chosen_mv[f][1][1], chosen_mv[f][2][1]);
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break;
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case 2:
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tx = (chosen_mv[f][0][0] + chosen_mv[f][1][0]) / 2;
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ty = (chosen_mv[f][0][1] + chosen_mv[f][1][1]) / 2;
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break;
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default:
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av_assert0(0);
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}
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s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx;
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s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty;
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for (k = 0; k < 4; k++)
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v->mv_f[1][s->block_index[k] + v->blocks_off] = f;
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}
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if (v->fcm == ILACE_FRAME) { // not sure if needed for other types of picture
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int qx, qy;
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int width = s->avctx->coded_width;
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int height = s->avctx->coded_height >> 1;
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if (s->pict_type == AV_PICTURE_TYPE_P) {
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s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][0] = mx;
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s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][1] = my;
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}
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qx = (s->mb_x * 16) + (mx >> 2);
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qy = (s->mb_y * 8) + (my >> 3);
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if (qx < -17)
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mx -= 4 * (qx + 17);
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else if (qx > width)
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mx -= 4 * (qx - width);
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if (qy < -18)
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my -= 8 * (qy + 18);
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else if (qy > height + 1)
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my -= 8 * (qy - height - 1);
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}
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if ((v->fcm == ILACE_FRAME) && fieldmv)
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off = ((n > 1) ? s->linesize : 0) + (n & 1) * 8;
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else
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off = s->linesize * 4 * (n & 2) + (n & 1) * 8;
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src_x = s->mb_x * 16 + (n & 1) * 8 + (mx >> 2);
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if (!fieldmv)
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src_y = s->mb_y * 16 + (n & 2) * 4 + (my >> 2);
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else
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src_y = s->mb_y * 16 + ((n > 1) ? 1 : 0) + (my >> 2);
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if (v->profile != PROFILE_ADVANCED) {
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src_x = av_clip(src_x, -16, s->mb_width * 16);
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src_y = av_clip(src_y, -16, s->mb_height * 16);
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} else {
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src_x = av_clip(src_x, -17, s->avctx->coded_width);
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if (v->fcm == ILACE_FRAME) {
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if (src_y & 1)
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src_y = av_clip(src_y, -17, s->avctx->coded_height + 1);
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else
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src_y = av_clip(src_y, -18, s->avctx->coded_height);
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} else {
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src_y = av_clip(src_y, -18, s->avctx->coded_height + 1);
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}
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}
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srcY += src_y * s->linesize + src_x;
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if (v->field_mode && v->ref_field_type[dir])
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srcY += s->current_picture_ptr->f->linesize[0];
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if (fieldmv && !(src_y & 1))
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v_edge_pos--;
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if (fieldmv && (src_y & 1) && src_y < 4)
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src_y--;
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if (v->rangeredfrm || use_ic
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|| s->h_edge_pos < 13 || v_edge_pos < 23
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|| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx & 3) - 8 - s->mspel * 2
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|| (unsigned)(src_y - (s->mspel << fieldmv)) > v_edge_pos - (my & 3) - ((8 + s->mspel * 2) << fieldmv)) {
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srcY -= s->mspel * (1 + (s->linesize << fieldmv));
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/* check emulate edge stride and offset */
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s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
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s->linesize, s->linesize,
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9 + s->mspel * 2, (9 + s->mspel * 2) << fieldmv,
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src_x - s->mspel, src_y - (s->mspel << fieldmv),
|
|
s->h_edge_pos, v_edge_pos);
|
|
srcY = s->edge_emu_buffer;
|
|
/* if we deal with range reduction we need to scale source blocks */
|
|
if (v->rangeredfrm) {
|
|
int i, j;
|
|
uint8_t *src;
|
|
|
|
src = srcY;
|
|
for (j = 0; j < 9 + s->mspel * 2; j++) {
|
|
for (i = 0; i < 9 + s->mspel * 2; i++)
|
|
src[i] = ((src[i] - 128) >> 1) + 128;
|
|
src += s->linesize << fieldmv;
|
|
}
|
|
}
|
|
/* if we deal with intensity compensation we need to scale source blocks */
|
|
if (use_ic) {
|
|
int i, j;
|
|
uint8_t *src;
|
|
|
|
src = srcY;
|
|
for (j = 0; j < 9 + s->mspel * 2; j++) {
|
|
int f = v->field_mode ? v->ref_field_type[dir] : (((j<<fieldmv)+src_y - (s->mspel << fieldmv)) & 1);
|
|
for (i = 0; i < 9 + s->mspel * 2; i++)
|
|
src[i] = luty[f][src[i]];
|
|
src += s->linesize << fieldmv;
|
|
}
|
|
}
|
|
srcY += s->mspel * (1 + (s->linesize << fieldmv));
|
|
}
|
|
|
|
if (s->mspel) {
|
|
dxy = ((my & 3) << 2) | (mx & 3);
|
|
if (avg)
|
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize << fieldmv, v->rnd);
|
|
else
|
|
v->vc1dsp.put_vc1_mspel_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize << fieldmv, v->rnd);
|
|
} else { // hpel mc - always used for luma
|
|
dxy = (my & 2) | ((mx & 2) >> 1);
|
|
if (!v->rnd)
|
|
s->hdsp.put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
|
|
else
|
|
s->hdsp.put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
|
|
}
|
|
}
|
|
|
|
static av_always_inline int get_chroma_mv(int *mvx, int *mvy, int *a, int flag, int *tx, int *ty)
|
|
{
|
|
int idx, i;
|
|
static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
|
|
|
|
idx = ((a[3] != flag) << 3)
|
|
| ((a[2] != flag) << 2)
|
|
| ((a[1] != flag) << 1)
|
|
| (a[0] != flag);
|
|
if (!idx) {
|
|
*tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]);
|
|
*ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]);
|
|
return 4;
|
|
} else if (count[idx] == 1) {
|
|
switch (idx) {
|
|
case 0x1:
|
|
*tx = mid_pred(mvx[1], mvx[2], mvx[3]);
|
|
*ty = mid_pred(mvy[1], mvy[2], mvy[3]);
|
|
return 3;
|
|
case 0x2:
|
|
*tx = mid_pred(mvx[0], mvx[2], mvx[3]);
|
|
*ty = mid_pred(mvy[0], mvy[2], mvy[3]);
|
|
return 3;
|
|
case 0x4:
|
|
*tx = mid_pred(mvx[0], mvx[1], mvx[3]);
|
|
*ty = mid_pred(mvy[0], mvy[1], mvy[3]);
|
|
return 3;
|
|
case 0x8:
|
|
*tx = mid_pred(mvx[0], mvx[1], mvx[2]);
|
|
*ty = mid_pred(mvy[0], mvy[1], mvy[2]);
|
|
return 3;
|
|
}
|
|
} else if (count[idx] == 2) {
|
|
int t1 = 0, t2 = 0;
|
|
for (i = 0; i < 3; i++)
|
|
if (!a[i]) {
|
|
t1 = i;
|
|
break;
|
|
}
|
|
for (i = t1 + 1; i < 4; i++)
|
|
if (!a[i]) {
|
|
t2 = i;
|
|
break;
|
|
}
|
|
*tx = (mvx[t1] + mvx[t2]) / 2;
|
|
*ty = (mvy[t1] + mvy[t2]) / 2;
|
|
return 2;
|
|
} else {
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/** Do motion compensation for 4-MV macroblock - both chroma blocks
|
|
*/
|
|
void ff_vc1_mc_4mv_chroma(VC1Context *v, int dir)
|
|
{
|
|
MpegEncContext *s = &v->s;
|
|
H264ChromaContext *h264chroma = &v->h264chroma;
|
|
uint8_t *srcU, *srcV;
|
|
int uvmx, uvmy, uvsrc_x, uvsrc_y;
|
|
int k, tx = 0, ty = 0;
|
|
int mvx[4], mvy[4], intra[4], mv_f[4];
|
|
int valid_count;
|
|
int chroma_ref_type = v->cur_field_type;
|
|
int v_edge_pos = s->v_edge_pos >> v->field_mode;
|
|
uint8_t (*lutuv)[256];
|
|
int use_ic;
|
|
|
|
if (!v->field_mode && !v->s.last_picture.f->data[0])
|
|
return;
|
|
if (s->flags & CODEC_FLAG_GRAY)
|
|
return;
|
|
|
|
for (k = 0; k < 4; k++) {
|
|
mvx[k] = s->mv[dir][k][0];
|
|
mvy[k] = s->mv[dir][k][1];
|
|
intra[k] = v->mb_type[0][s->block_index[k]];
|
|
if (v->field_mode)
|
|
mv_f[k] = v->mv_f[dir][s->block_index[k] + v->blocks_off];
|
|
}
|
|
|
|
/* calculate chroma MV vector from four luma MVs */
|
|
if (!v->field_mode || (v->field_mode && !v->numref)) {
|
|
valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty);
|
|
chroma_ref_type = v->ref_field_type[dir];
|
|
if (!valid_count) {
|
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0;
|
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0;
|
|
v->luma_mv[s->mb_x][0] = v->luma_mv[s->mb_x][1] = 0;
|
|
return; //no need to do MC for intra blocks
|
|
}
|
|
} else {
|
|
int dominant = 0;
|
|
if (mv_f[0] + mv_f[1] + mv_f[2] + mv_f[3] > 2)
|
|
dominant = 1;
|
|
valid_count = get_chroma_mv(mvx, mvy, mv_f, dominant, &tx, &ty);
|
|
if (dominant)
|
|
chroma_ref_type = !v->cur_field_type;
|
|
}
|
|
if (v->field_mode && chroma_ref_type == 1 && v->cur_field_type == 1 && !v->s.last_picture.f->data[0])
|
|
return;
|
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx;
|
|
s->current_picture.motion_val[1][s->block_index[0] + v->blocks_off][1] = ty;
|
|
uvmx = (tx + ((tx & 3) == 3)) >> 1;
|
|
uvmy = (ty + ((ty & 3) == 3)) >> 1;
|
|
|
|
v->luma_mv[s->mb_x][0] = uvmx;
|
|
v->luma_mv[s->mb_x][1] = uvmy;
|
|
|
|
if (v->fastuvmc) {
|
|
uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1));
|
|
uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1));
|
|
}
|
|
// Field conversion bias
|
|
if (v->cur_field_type != chroma_ref_type)
|
|
uvmy += 2 - 4 * chroma_ref_type;
|
|
|
|
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
|
|
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
|
|
|
|
if (v->profile != PROFILE_ADVANCED) {
|
|
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
|
|
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
|
|
} else {
|
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
|
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
|
|
}
|
|
|
|
if (!dir) {
|
|
if (v->field_mode && (v->cur_field_type != chroma_ref_type) && v->second_field) {
|
|
srcU = s->current_picture.f->data[1];
|
|
srcV = s->current_picture.f->data[2];
|
|
lutuv = v->curr_lutuv;
|
|
use_ic = *v->curr_use_ic;
|
|
} else {
|
|
srcU = s->last_picture.f->data[1];
|
|
srcV = s->last_picture.f->data[2];
|
|
lutuv = v->last_lutuv;
|
|
use_ic = v->last_use_ic;
|
|
}
|
|
} else {
|
|
srcU = s->next_picture.f->data[1];
|
|
srcV = s->next_picture.f->data[2];
|
|
lutuv = v->next_lutuv;
|
|
use_ic = v->next_use_ic;
|
|
}
|
|
|
|
if (!srcU) {
|
|
av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n");
|
|
return;
|
|
}
|
|
|
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
|
|
srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
|
|
|
|
if (v->field_mode) {
|
|
if (chroma_ref_type) {
|
|
srcU += s->current_picture_ptr->f->linesize[1];
|
|
srcV += s->current_picture_ptr->f->linesize[2];
|
|
}
|
|
}
|
|
|
|
if (v->rangeredfrm || use_ic
|
|
|| s->h_edge_pos < 18 || v_edge_pos < 18
|
|
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
|
|
|| (unsigned)uvsrc_y > (v_edge_pos >> 1) - 9) {
|
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcU,
|
|
s->uvlinesize, s->uvlinesize,
|
|
8 + 1, 8 + 1, uvsrc_x, uvsrc_y,
|
|
s->h_edge_pos >> 1, v_edge_pos >> 1);
|
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV,
|
|
s->uvlinesize, s->uvlinesize,
|
|
8 + 1, 8 + 1, uvsrc_x, uvsrc_y,
|
|
s->h_edge_pos >> 1, v_edge_pos >> 1);
|
|
srcU = s->edge_emu_buffer;
|
|
srcV = s->edge_emu_buffer + 16;
|
|
|
|
/* if we deal with range reduction we need to scale source blocks */
|
|
if (v->rangeredfrm) {
|
|
int i, j;
|
|
uint8_t *src, *src2;
|
|
|
|
src = srcU;
|
|
src2 = srcV;
|
|
for (j = 0; j < 9; j++) {
|
|
for (i = 0; i < 9; i++) {
|
|
src[i] = ((src[i] - 128) >> 1) + 128;
|
|
src2[i] = ((src2[i] - 128) >> 1) + 128;
|
|
}
|
|
src += s->uvlinesize;
|
|
src2 += s->uvlinesize;
|
|
}
|
|
}
|
|
/* if we deal with intensity compensation we need to scale source blocks */
|
|
if (use_ic) {
|
|
int i, j;
|
|
uint8_t *src, *src2;
|
|
|
|
src = srcU;
|
|
src2 = srcV;
|
|
for (j = 0; j < 9; j++) {
|
|
int f = v->field_mode ? chroma_ref_type : ((j + uvsrc_y) & 1);
|
|
for (i = 0; i < 9; i++) {
|
|
src[i] = lutuv[f][src[i]];
|
|
src2[i] = lutuv[f][src2[i]];
|
|
}
|
|
src += s->uvlinesize;
|
|
src2 += s->uvlinesize;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Chroma MC always uses qpel bilinear */
|
|
uvmx = (uvmx & 3) << 1;
|
|
uvmy = (uvmy & 3) << 1;
|
|
if (!v->rnd) {
|
|
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
|
|
h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
|
|
} else {
|
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy);
|
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
|
|
}
|
|
}
|
|
|
|
/** Do motion compensation for 4-MV interlaced frame chroma macroblock (both U and V)
|
|
*/
|
|
void ff_vc1_mc_4mv_chroma4(VC1Context *v, int dir, int dir2, int avg)
|
|
{
|
|
MpegEncContext *s = &v->s;
|
|
H264ChromaContext *h264chroma = &v->h264chroma;
|
|
uint8_t *srcU, *srcV;
|
|
int uvsrc_x, uvsrc_y;
|
|
int uvmx_field[4], uvmy_field[4];
|
|
int i, off, tx, ty;
|
|
int fieldmv = v->blk_mv_type[s->block_index[0]];
|
|
static const int s_rndtblfield[16] = { 0, 0, 1, 2, 4, 4, 5, 6, 2, 2, 3, 8, 6, 6, 7, 12 };
|
|
int v_dist = fieldmv ? 1 : 4; // vertical offset for lower sub-blocks
|
|
int v_edge_pos = s->v_edge_pos >> 1;
|
|
int use_ic;
|
|
uint8_t (*lutuv)[256];
|
|
|
|
if (s->flags & CODEC_FLAG_GRAY)
|
|
return;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
int d = i < 2 ? dir: dir2;
|
|
tx = s->mv[d][i][0];
|
|
uvmx_field[i] = (tx + ((tx & 3) == 3)) >> 1;
|
|
ty = s->mv[d][i][1];
|
|
if (fieldmv)
|
|
uvmy_field[i] = (ty >> 4) * 8 + s_rndtblfield[ty & 0xF];
|
|
else
|
|
uvmy_field[i] = (ty + ((ty & 3) == 3)) >> 1;
|
|
}
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
off = (i & 1) * 4 + ((i & 2) ? v_dist * s->uvlinesize : 0);
|
|
uvsrc_x = s->mb_x * 8 + (i & 1) * 4 + (uvmx_field[i] >> 2);
|
|
uvsrc_y = s->mb_y * 8 + ((i & 2) ? v_dist : 0) + (uvmy_field[i] >> 2);
|
|
// FIXME: implement proper pull-back (see vc1cropmv.c, vc1CROPMV_ChromaPullBack())
|
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
|
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
|
|
if (i < 2 ? dir : dir2) {
|
|
srcU = s->next_picture.f->data[1];
|
|
srcV = s->next_picture.f->data[2];
|
|
lutuv = v->next_lutuv;
|
|
use_ic = v->next_use_ic;
|
|
} else {
|
|
srcU = s->last_picture.f->data[1];
|
|
srcV = s->last_picture.f->data[2];
|
|
lutuv = v->last_lutuv;
|
|
use_ic = v->last_use_ic;
|
|
}
|
|
if (!srcU)
|
|
return;
|
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
|
|
srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
|
|
uvmx_field[i] = (uvmx_field[i] & 3) << 1;
|
|
uvmy_field[i] = (uvmy_field[i] & 3) << 1;
|
|
|
|
if (fieldmv && !(uvsrc_y & 1))
|
|
v_edge_pos = (s->v_edge_pos >> 1) - 1;
|
|
|
|
if (fieldmv && (uvsrc_y & 1) && uvsrc_y < 2)
|
|
uvsrc_y--;
|
|
if (use_ic
|
|
|| s->h_edge_pos < 10 || v_edge_pos < (5 << fieldmv)
|
|
|| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 5
|
|
|| (unsigned)uvsrc_y > v_edge_pos - (5 << fieldmv)) {
|
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcU,
|
|
s->uvlinesize, s->uvlinesize,
|
|
5, (5 << fieldmv), uvsrc_x, uvsrc_y,
|
|
s->h_edge_pos >> 1, v_edge_pos);
|
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer + 16, srcV,
|
|
s->uvlinesize, s->uvlinesize,
|
|
5, (5 << fieldmv), uvsrc_x, uvsrc_y,
|
|
s->h_edge_pos >> 1, v_edge_pos);
|
|
srcU = s->edge_emu_buffer;
|
|
srcV = s->edge_emu_buffer + 16;
|
|
|
|
/* if we deal with intensity compensation we need to scale source blocks */
|
|
if (use_ic) {
|
|
int i, j;
|
|
uint8_t *src, *src2;
|
|
|
|
src = srcU;
|
|
src2 = srcV;
|
|
for (j = 0; j < 5; j++) {
|
|
int f = (uvsrc_y + (j << fieldmv)) & 1;
|
|
for (i = 0; i < 5; i++) {
|
|
src[i] = lutuv[f][src[i]];
|
|
src2[i] = lutuv[f][src2[i]];
|
|
}
|
|
src += s->uvlinesize << fieldmv;
|
|
src2 += s->uvlinesize << fieldmv;
|
|
}
|
|
}
|
|
}
|
|
if (avg) {
|
|
if (!v->rnd) {
|
|
h264chroma->avg_h264_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
h264chroma->avg_h264_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
} else {
|
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
}
|
|
} else {
|
|
if (!v->rnd) {
|
|
h264chroma->put_h264_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
h264chroma->put_h264_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
} else {
|
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[1](s->dest[1] + off, srcU, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[1](s->dest[2] + off, srcV, s->uvlinesize << fieldmv, 4, uvmx_field[i], uvmy_field[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/** Motion compensation for direct or interpolated blocks in B-frames
|
|
*/
|
|
void ff_vc1_interp_mc(VC1Context *v)
|
|
{
|
|
MpegEncContext *s = &v->s;
|
|
H264ChromaContext *h264chroma = &v->h264chroma;
|
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uint8_t *srcY, *srcU, *srcV;
|
|
int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
|
|
int off, off_uv;
|
|
int v_edge_pos = s->v_edge_pos >> v->field_mode;
|
|
int use_ic = v->next_use_ic;
|
|
|
|
if (!v->field_mode && !v->s.next_picture.f->data[0])
|
|
return;
|
|
|
|
mx = s->mv[1][0][0];
|
|
my = s->mv[1][0][1];
|
|
uvmx = (mx + ((mx & 3) == 3)) >> 1;
|
|
uvmy = (my + ((my & 3) == 3)) >> 1;
|
|
if (v->field_mode && v->cur_field_type != v->ref_field_type[1]) {
|
|
my = my - 2 + 4 * v->cur_field_type;
|
|
uvmy = uvmy - 2 + 4 * v->cur_field_type;
|
|
}
|
|
if (v->fastuvmc) {
|
|
uvmx = uvmx + ((uvmx < 0) ? -(uvmx & 1) : (uvmx & 1));
|
|
uvmy = uvmy + ((uvmy < 0) ? -(uvmy & 1) : (uvmy & 1));
|
|
}
|
|
srcY = s->next_picture.f->data[0];
|
|
srcU = s->next_picture.f->data[1];
|
|
srcV = s->next_picture.f->data[2];
|
|
|
|
src_x = s->mb_x * 16 + (mx >> 2);
|
|
src_y = s->mb_y * 16 + (my >> 2);
|
|
uvsrc_x = s->mb_x * 8 + (uvmx >> 2);
|
|
uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
|
|
|
|
if (v->profile != PROFILE_ADVANCED) {
|
|
src_x = av_clip( src_x, -16, s->mb_width * 16);
|
|
src_y = av_clip( src_y, -16, s->mb_height * 16);
|
|
uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8);
|
|
uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8);
|
|
} else {
|
|
src_x = av_clip( src_x, -17, s->avctx->coded_width);
|
|
src_y = av_clip( src_y, -18, s->avctx->coded_height + 1);
|
|
uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1);
|
|
uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1);
|
|
}
|
|
|
|
srcY += src_y * s->linesize + src_x;
|
|
srcU += uvsrc_y * s->uvlinesize + uvsrc_x;
|
|
srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
|
|
|
|
if (v->field_mode && v->ref_field_type[1]) {
|
|
srcY += s->current_picture_ptr->f->linesize[0];
|
|
srcU += s->current_picture_ptr->f->linesize[1];
|
|
srcV += s->current_picture_ptr->f->linesize[2];
|
|
}
|
|
|
|
/* for grayscale we should not try to read from unknown area */
|
|
if (s->flags & CODEC_FLAG_GRAY) {
|
|
srcU = s->edge_emu_buffer + 18 * s->linesize;
|
|
srcV = s->edge_emu_buffer + 18 * s->linesize;
|
|
}
|
|
|
|
if (v->rangeredfrm || s->h_edge_pos < 22 || v_edge_pos < 22 || use_ic
|
|
|| (unsigned)(src_x - 1) > s->h_edge_pos - (mx & 3) - 16 - 3
|
|
|| (unsigned)(src_y - 1) > v_edge_pos - (my & 3) - 16 - 3) {
|
|
uint8_t *ubuf = s->edge_emu_buffer + 19 * s->linesize;
|
|
uint8_t *vbuf = ubuf + 9 * s->uvlinesize;
|
|
|
|
srcY -= s->mspel * (1 + s->linesize);
|
|
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
|
|
s->linesize, s->linesize,
|
|
17 + s->mspel * 2, 17 + s->mspel * 2,
|
|
src_x - s->mspel, src_y - s->mspel,
|
|
s->h_edge_pos, v_edge_pos);
|
|
srcY = s->edge_emu_buffer;
|
|
s->vdsp.emulated_edge_mc(ubuf, srcU,
|
|
s->uvlinesize, s->uvlinesize,
|
|
8 + 1, 8 + 1,
|
|
uvsrc_x, uvsrc_y,
|
|
s->h_edge_pos >> 1, v_edge_pos >> 1);
|
|
s->vdsp.emulated_edge_mc(vbuf, srcV,
|
|
s->uvlinesize, s->uvlinesize,
|
|
8 + 1, 8 + 1,
|
|
uvsrc_x, uvsrc_y,
|
|
s->h_edge_pos >> 1, v_edge_pos >> 1);
|
|
srcU = ubuf;
|
|
srcV = vbuf;
|
|
/* if we deal with range reduction we need to scale source blocks */
|
|
if (v->rangeredfrm) {
|
|
int i, j;
|
|
uint8_t *src, *src2;
|
|
|
|
src = srcY;
|
|
for (j = 0; j < 17 + s->mspel * 2; j++) {
|
|
for (i = 0; i < 17 + s->mspel * 2; i++)
|
|
src[i] = ((src[i] - 128) >> 1) + 128;
|
|
src += s->linesize;
|
|
}
|
|
src = srcU;
|
|
src2 = srcV;
|
|
for (j = 0; j < 9; j++) {
|
|
for (i = 0; i < 9; i++) {
|
|
src[i] = ((src[i] - 128) >> 1) + 128;
|
|
src2[i] = ((src2[i] - 128) >> 1) + 128;
|
|
}
|
|
src += s->uvlinesize;
|
|
src2 += s->uvlinesize;
|
|
}
|
|
}
|
|
|
|
if (use_ic) {
|
|
uint8_t (*luty )[256] = v->next_luty;
|
|
uint8_t (*lutuv)[256] = v->next_lutuv;
|
|
int i, j;
|
|
uint8_t *src, *src2;
|
|
|
|
src = srcY;
|
|
for (j = 0; j < 17 + s->mspel * 2; j++) {
|
|
int f = v->field_mode ? v->ref_field_type[1] : ((j+src_y - s->mspel) & 1);
|
|
for (i = 0; i < 17 + s->mspel * 2; i++)
|
|
src[i] = luty[f][src[i]];
|
|
src += s->linesize;
|
|
}
|
|
src = srcU;
|
|
src2 = srcV;
|
|
for (j = 0; j < 9; j++) {
|
|
int f = v->field_mode ? v->ref_field_type[1] : ((j+uvsrc_y) & 1);
|
|
for (i = 0; i < 9; i++) {
|
|
src[i] = lutuv[f][src[i]];
|
|
src2[i] = lutuv[f][src2[i]];
|
|
}
|
|
src += s->uvlinesize;
|
|
src2 += s->uvlinesize;
|
|
}
|
|
}
|
|
srcY += s->mspel * (1 + s->linesize);
|
|
}
|
|
|
|
off = 0;
|
|
off_uv = 0;
|
|
|
|
if (s->mspel) {
|
|
dxy = ((my & 3) << 2) | (mx & 3);
|
|
v->vc1dsp.avg_vc1_mspel_pixels_tab[0][dxy](s->dest[0] + off , srcY , s->linesize, v->rnd);
|
|
} else { // hpel mc
|
|
dxy = (my & 2) | ((mx & 2) >> 1);
|
|
|
|
if (!v->rnd)
|
|
s->hdsp.avg_pixels_tab[0][dxy](s->dest[0] + off, srcY, s->linesize, 16);
|
|
else
|
|
s->hdsp.avg_no_rnd_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, 16);
|
|
}
|
|
|
|
if (s->flags & CODEC_FLAG_GRAY) return;
|
|
/* Chroma MC always uses qpel blilinear */
|
|
uvmx = (uvmx & 3) << 1;
|
|
uvmy = (uvmy & 3) << 1;
|
|
if (!v->rnd) {
|
|
h264chroma->avg_h264_chroma_pixels_tab[0](s->dest[1] + off_uv, srcU, s->uvlinesize, 8, uvmx, uvmy);
|
|
h264chroma->avg_h264_chroma_pixels_tab[0](s->dest[2] + off_uv, srcV, s->uvlinesize, 8, uvmx, uvmy);
|
|
} else {
|
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1] + off_uv, srcU, s->uvlinesize, 8, uvmx, uvmy);
|
|
v->vc1dsp.avg_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2] + off_uv, srcV, s->uvlinesize, 8, uvmx, uvmy);
|
|
}
|
|
}
|