| /* |
| * VC-1 and WMV3 decoder |
| * Copyright (c) 2011 Mashiat Sarker Shakkhar |
| * Copyright (c) 2006-2007 Konstantin Shishkov |
| * Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer |
| * |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * VC-1 and WMV3 block decoding routines |
| */ |
| |
| #include "avcodec.h" |
| #include "h264chroma.h" |
| #include "mathops.h" |
| #include "mpegvideo.h" |
| #include "vc1.h" |
| |
| /** Do motion compensation over 1 macroblock |
| * Mostly adapted hpel_motion and qpel_motion from mpegvideo.c |
| */ |
| void ff_vc1_mc_1mv(VC1Context *v, int dir) |
| { |
| MpegEncContext *s = &v->s; |
| H264ChromaContext *h264chroma = &v->h264chroma; |
| uint8_t *srcY, *srcU, *srcV; |
| int dxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; |
| int v_edge_pos = s->v_edge_pos >> v->field_mode; |
| int i; |
| uint8_t (*luty)[256], (*lutuv)[256]; |
| int use_ic; |
| |
| if ((!v->field_mode || |
| (v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) && |
| !v->s.last_picture.f->data[0]) |
| return; |
| |
| mx = s->mv[dir][0][0]; |
| my = s->mv[dir][0][1]; |
| |
| // store motion vectors for further use in B frames |
| if (s->pict_type == AV_PICTURE_TYPE_P) { |
| for (i = 0; i < 4; i++) { |
| s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][0] = mx; |
| s->current_picture.motion_val[1][s->block_index[i] + v->blocks_off][1] = my; |
| } |
| } |
| |
| uvmx = (mx + ((mx & 3) == 3)) >> 1; |
| uvmy = (my + ((my & 3) == 3)) >> 1; |
| v->luma_mv[s->mb_x][0] = uvmx; |
| v->luma_mv[s->mb_x][1] = uvmy; |
| |
| if (v->field_mode && |
| v->cur_field_type != v->ref_field_type[dir]) { |
| my = my - 2 + 4 * v->cur_field_type; |
| uvmy = uvmy - 2 + 4 * v->cur_field_type; |
| } |
| |
| // fastuvmc shall be ignored for interlaced frame picture |
| if (v->fastuvmc && (v->fcm != ILACE_FRAME)) { |
| uvmx = uvmx + ((uvmx < 0) ? (uvmx & 1) : -(uvmx & 1)); |
| uvmy = uvmy + ((uvmy < 0) ? (uvmy & 1) : -(uvmy & 1)); |
| } |
| if (!dir) { |
| if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) { |
| srcY = s->current_picture.f->data[0]; |
| srcU = s->current_picture.f->data[1]; |
| srcV = s->current_picture.f->data[2]; |
| luty = v->curr_luty; |
| lutuv = v->curr_lutuv; |
| use_ic = *v->curr_use_ic; |
| } else { |
| srcY = s->last_picture.f->data[0]; |
| srcU = s->last_picture.f->data[1]; |
| srcV = s->last_picture.f->data[2]; |
| luty = v->last_luty; |
| lutuv = v->last_lutuv; |
| use_ic = v->last_use_ic; |
| } |
| } else { |
| srcY = s->next_picture.f->data[0]; |
| srcU = s->next_picture.f->data[1]; |
| srcV = s->next_picture.f->data[2]; |
| luty = v->next_luty; |
| lutuv = v->next_lutuv; |
| use_ic = v->next_use_ic; |
| } |
| |
| if (!srcY || !srcU) { |
| av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
| return; |
| } |
| |
| 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[dir]) { |
| 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 || use_ic |
| || s->h_edge_pos < 22 || v_edge_pos < 22 |
| || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel * 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 we deal with intensity compensation we need to scale source blocks */ |
| if (use_ic) { |
| 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[dir] : ((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[dir] : ((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); |
| } |
| |
| if (s->mspel) { |
| dxy = ((my & 3) << 2) | (mx & 3); |
| v->vc1dsp.put_vc1_mspel_pixels_tab[0][dxy](s->dest[0] , srcY , s->linesize, v->rnd); |
| } else { // hpel mc - always used for luma |
| dxy = (my & 2) | ((mx & 2) >> 1); |
| if (!v->rnd) |
| s->hdsp.put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); |
| else |
| s->hdsp.put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); |
| } |
| |
| if (s->flags & CODEC_FLAG_GRAY) return; |
| /* 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); |
| } |
| } |
| |
| static inline int median4(int a, int b, int c, int d) |
| { |
| if (a < b) { |
| if (c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2; |
| else return (FFMIN(b, c) + FFMAX(a, d)) / 2; |
| } else { |
| if (c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2; |
| else return (FFMIN(a, c) + FFMAX(b, d)) / 2; |
| } |
| } |
| |
| /** Do motion compensation for 4-MV macroblock - luminance block |
| */ |
| void ff_vc1_mc_4mv_luma(VC1Context *v, int n, int dir, int avg) |
| { |
| MpegEncContext *s = &v->s; |
| uint8_t *srcY; |
| int dxy, mx, my, src_x, src_y; |
| int off; |
| int fieldmv = (v->fcm == ILACE_FRAME) ? v->blk_mv_type[s->block_index[n]] : 0; |
| int v_edge_pos = s->v_edge_pos >> v->field_mode; |
| uint8_t (*luty)[256]; |
| int use_ic; |
| |
| if ((!v->field_mode || |
| (v->ref_field_type[dir] == 1 && v->cur_field_type == 1)) && |
| !v->s.last_picture.f->data[0]) |
| return; |
| |
| mx = s->mv[dir][n][0]; |
| my = s->mv[dir][n][1]; |
| |
| if (!dir) { |
| if (v->field_mode && (v->cur_field_type != v->ref_field_type[dir]) && v->second_field) { |
| srcY = s->current_picture.f->data[0]; |
| luty = v->curr_luty; |
| use_ic = *v->curr_use_ic; |
| } else { |
| srcY = s->last_picture.f->data[0]; |
| luty = v->last_luty; |
| use_ic = v->last_use_ic; |
| } |
| } else { |
| srcY = s->next_picture.f->data[0]; |
| luty = v->next_luty; |
| use_ic = v->next_use_ic; |
| } |
| |
| if (!srcY) { |
| av_log(v->s.avctx, AV_LOG_ERROR, "Referenced frame missing.\n"); |
| return; |
| } |
| |
| if (v->field_mode) { |
| if (v->cur_field_type != v->ref_field_type[dir]) |
| my = my - 2 + 4 * v->cur_field_type; |
| } |
| |
| if (s->pict_type == AV_PICTURE_TYPE_P && n == 3 && v->field_mode) { |
| int same_count = 0, opp_count = 0, k; |
| int chosen_mv[2][4][2], f; |
| int tx, ty; |
| for (k = 0; k < 4; k++) { |
| f = v->mv_f[0][s->block_index[k] + v->blocks_off]; |
| chosen_mv[f][f ? opp_count : same_count][0] = s->mv[0][k][0]; |
| chosen_mv[f][f ? opp_count : same_count][1] = s->mv[0][k][1]; |
| opp_count += f; |
| same_count += 1 - f; |
| } |
| f = opp_count > same_count; |
| switch (f ? opp_count : same_count) { |
| case 4: |
| tx = median4(chosen_mv[f][0][0], chosen_mv[f][1][0], |
| chosen_mv[f][2][0], chosen_mv[f][3][0]); |
| ty = median4(chosen_mv[f][0][1], chosen_mv[f][1][1], |
| chosen_mv[f][2][1], chosen_mv[f][3][1]); |
| break; |
| case 3: |
| tx = mid_pred(chosen_mv[f][0][0], chosen_mv[f][1][0], chosen_mv[f][2][0]); |
| ty = mid_pred(chosen_mv[f][0][1], chosen_mv[f][1][1], chosen_mv[f][2][1]); |
| break; |
| case 2: |
| tx = (chosen_mv[f][0][0] + chosen_mv[f][1][0]) / 2; |
| ty = (chosen_mv[f][0][1] + chosen_mv[f][1][1]) / 2; |
| break; |
| default: |
| av_assert0(0); |
| } |
| 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; |
| for (k = 0; k < 4; k++) |
| v->mv_f[1][s->block_index[k] + v->blocks_off] = f; |
| } |
| |
| if (v->fcm == ILACE_FRAME) { // not sure if needed for other types of picture |
| int qx, qy; |
| int width = s->avctx->coded_width; |
| int height = s->avctx->coded_height >> 1; |
| if (s->pict_type == AV_PICTURE_TYPE_P) { |
| s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][0] = mx; |
| s->current_picture.motion_val[1][s->block_index[n] + v->blocks_off][1] = my; |
| } |
| qx = (s->mb_x * 16) + (mx >> 2); |
| qy = (s->mb_y * 8) + (my >> 3); |
| |
| if (qx < -17) |
| mx -= 4 * (qx + 17); |
| else if (qx > width) |
| mx -= 4 * (qx - width); |
| if (qy < -18) |
| my -= 8 * (qy + 18); |
| else if (qy > height + 1) |
| my -= 8 * (qy - height - 1); |
| } |
| |
| if ((v->fcm == ILACE_FRAME) && fieldmv) |
| off = ((n > 1) ? s->linesize : 0) + (n & 1) * 8; |
| else |
| off = s->linesize * 4 * (n & 2) + (n & 1) * 8; |
| |
| src_x = s->mb_x * 16 + (n & 1) * 8 + (mx >> 2); |
| if (!fieldmv) |
| src_y = s->mb_y * 16 + (n & 2) * 4 + (my >> 2); |
| else |
| src_y = s->mb_y * 16 + ((n > 1) ? 1 : 0) + (my >> 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); |
| } else { |
| src_x = av_clip(src_x, -17, s->avctx->coded_width); |
| if (v->fcm == ILACE_FRAME) { |
| if (src_y & 1) |
| src_y = av_clip(src_y, -17, s->avctx->coded_height + 1); |
| else |
| src_y = av_clip(src_y, -18, s->avctx->coded_height); |
| } else { |
| src_y = av_clip(src_y, -18, s->avctx->coded_height + 1); |
| } |
| } |
| |
| srcY += src_y * s->linesize + src_x; |
| if (v->field_mode && v->ref_field_type[dir]) |
| srcY += s->current_picture_ptr->f->linesize[0]; |
| |
| if (fieldmv && !(src_y & 1)) |
| v_edge_pos--; |
| if (fieldmv && (src_y & 1) && src_y < 4) |
| src_y--; |
| if (v->rangeredfrm || use_ic |
| || s->h_edge_pos < 13 || v_edge_pos < 23 |
| || (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx & 3) - 8 - s->mspel * 2 |
| || (unsigned)(src_y - (s->mspel << fieldmv)) > v_edge_pos - (my & 3) - ((8 + s->mspel * 2) << fieldmv)) { |
| srcY -= s->mspel * (1 + (s->linesize << fieldmv)); |
| /* check emulate edge stride and offset */ |
| s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, |
| s->linesize, s->linesize, |
| 9 + s->mspel * 2, (9 + s->mspel * 2) << fieldmv, |
| 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->reffield; |
| 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; |
| 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); |
| } |
| } |
