static void 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, off = 0; int v_edge_pos = s->v_edge_pos >> v->field_mode; 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.f.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0; s->current_picture.f.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.f.motion_val[1][s->block_index[0] + v->blocks_off][0] = tx; s->current_picture.f.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) { if ((v->cur_field_type != chroma_ref_type) && v->cur_field_type) { srcU = s->current_picture.f.data[1]; srcV = s->current_picture.f.data[2]; } else { srcU = s->last_picture.f.data[1]; srcV = s->last_picture.f.data[2]; } } else { srcU = s->last_picture.f.data[1]; srcV = s->last_picture.f.data[2]; } } else { srcU = s->next_picture.f.data[1]; srcV = s->next_picture.f.data[2]; } if(!srcU) 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]; } off = v->second_field ? s->current_picture_ptr->f.linesize[1] : 0; } if (v->rangeredfrm || (v->mv_mode == MV_PMODE_INTENSITY_COMP) || 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, 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, 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 (v->mv_mode == MV_PMODE_INTENSITY_COMP) { 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] = v->lutuv[src[i]]; src2[i] = v->lutuv[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] + off, srcU, s->uvlinesize, 8, uvmx, uvmy); h264chroma->put_h264_chroma_pixels_tab[0](s->dest[2] + off, srcV, s->uvlinesize, 8, uvmx, uvmy); } else { v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[1] + off, srcU, s->uvlinesize, 8, uvmx, uvmy); v->vc1dsp.put_no_rnd_vc1_chroma_pixels_tab[0](s->dest[2] + off, srcV, s->uvlinesize, 8, uvmx, uvmy); } }