static av_always_inline void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64], int lowres_flag) { int mb_x, mb_y; const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; #ifdef HAVE_XVMC if(s->avctx->xvmc_acceleration){ XVMC_decode_mb(s);//xvmc uses pblocks return; } #endif mb_x = s->mb_x; mb_y = s->mb_y; if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { /* save DCT coefficients */ int i,j; DCTELEM *dct = &s->current_picture.dct_coeff[mb_xy*64*6]; for(i=0; i<6; i++) for(j=0; j<64; j++) *dct++ = block[i][s->dsp.idct_permutation[j]]; } s->current_picture.qscale_table[mb_xy]= s->qscale; /* update DC predictors for P macroblocks */ if (!s->mb_intra) { if (s->h263_pred || s->h263_aic) { if(s->mbintra_table[mb_xy]) ff_clean_intra_table_entries(s); } else { s->last_dc[0] = s->last_dc[1] = s->last_dc[2] = 128 << s->intra_dc_precision; } } else if (s->h263_pred || s->h263_aic) s->mbintra_table[mb_xy]=1; if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==B_TYPE) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc uint8_t *dest_y, *dest_cb, *dest_cr; int dct_linesize, dct_offset; op_pixels_func (*op_pix)[4]; qpel_mc_func (*op_qpix)[16]; const int linesize= s->current_picture.linesize[0]; //not s->linesize as this would be wrong for field pics const int uvlinesize= s->current_picture.linesize[1]; const int readable= s->pict_type != B_TYPE || s->encoding || s->avctx->draw_horiz_band || lowres_flag; const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8; /* avoid copy if macroblock skipped in last frame too */ /* skip only during decoding as we might trash the buffers during encoding a bit */ if(!s->encoding){ uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy]; const int age= s->current_picture.age; assert(age); if (s->mb_skipped) { s->mb_skipped= 0; assert(s->pict_type!=I_TYPE); (*mbskip_ptr) ++; /* indicate that this time we skipped it */ if(*mbskip_ptr >99) *mbskip_ptr= 99; /* if previous was skipped too, then nothing to do ! */ if (*mbskip_ptr >= age && s->current_picture.reference){ return; } } else if(!s->current_picture.reference){ (*mbskip_ptr) ++; /* increase counter so the age can be compared cleanly */ if(*mbskip_ptr >99) *mbskip_ptr= 99; } else{ *mbskip_ptr = 0; /* not skipped */ } } dct_linesize = linesize << s->interlaced_dct; dct_offset =(s->interlaced_dct)? linesize : linesize*block_size; if(readable){ dest_y= s->dest[0]; dest_cb= s->dest[1]; dest_cr= s->dest[2]; }else{ dest_y = s->b_scratchpad; dest_cb= s->b_scratchpad+16*linesize; dest_cr= s->b_scratchpad+32*linesize; } if (!s->mb_intra) { /* motion handling */ /* decoding or more than one mb_type (MC was already done otherwise) */ if(!s->encoding){ if(lowres_flag){ h264_chroma_mc_func *op_pix = s->dsp.put_h264_chroma_pixels_tab; if (s->mv_dir & MV_DIR_FORWARD) { MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix); op_pix = s->dsp.avg_h264_chroma_pixels_tab; } if (s->mv_dir & MV_DIR_BACKWARD) { MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix); } }else{ op_qpix= s->me.qpel_put; if ((!s->no_rounding) || s->pict_type==B_TYPE){ op_pix = s->dsp.put_pixels_tab; }else{ op_pix = s->dsp.put_no_rnd_pixels_tab; } if (s->mv_dir & MV_DIR_FORWARD) { MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix); op_pix = s->dsp.avg_pixels_tab; op_qpix= s->me.qpel_avg; } if (s->mv_dir & MV_DIR_BACKWARD) { MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix); } } } /* skip dequant / idct if we are really late ;) */ if(s->hurry_up>1) goto skip_idct; if(s->avctx->skip_idct){ if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == B_TYPE) ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != I_TYPE) || s->avctx->skip_idct >= AVDISCARD_ALL) goto skip_idct; } /* add dct residue */ if(s->encoding || !( s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || (s->codec_id==CODEC_ID_MPEG4 && !s->mpeg_quant))){ add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); if(!(s->flags&CODEC_FLAG_GRAY)){ if (s->chroma_y_shift){ add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); }else{ dct_linesize >>= 1; dct_offset >>=1; add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); } } } else if(s->codec_id != CODEC_ID_WMV2){ add_dct(s, block[0], 0, dest_y , dct_linesize); add_dct(s, block[1], 1, dest_y + block_size, dct_linesize); add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize); add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize); if(!(s->flags&CODEC_FLAG_GRAY)){ if(s->chroma_y_shift){//Chroma420 add_dct(s, block[4], 4, dest_cb, uvlinesize); add_dct(s, block[5], 5, dest_cr, uvlinesize); }else{ //chroma422 dct_linesize = uvlinesize << s->interlaced_dct; dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8; add_dct(s, block[4], 4, dest_cb, dct_linesize); add_dct(s, block[5], 5, dest_cr, dct_linesize); add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize); add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize); if(!s->chroma_x_shift){//Chroma444 add_dct(s, block[8], 8, dest_cb+8, dct_linesize); add_dct(s, block[9], 9, dest_cr+8, dct_linesize); add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize); add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize); } } }//fi gray } else if (ENABLE_WMV2) { ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr); } } else { /* dct only in intra block */ if(s->encoding || !(s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO)){ put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); if(!(s->flags&CODEC_FLAG_GRAY)){ if(s->chroma_y_shift){ put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); }else{ dct_offset >>=1; dct_linesize >>=1; put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); } } }else{ s->dsp.idct_put(dest_y , dct_linesize, block[0]); s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]); s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]); s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]); if(!(s->flags&CODEC_FLAG_GRAY)){ if(s->chroma_y_shift){ s->dsp.idct_put(dest_cb, uvlinesize, block[4]); s->dsp.idct_put(dest_cr, uvlinesize, block[5]); }else{ dct_linesize = uvlinesize << s->interlaced_dct; dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8; s->dsp.idct_put(dest_cb, dct_linesize, block[4]); s->dsp.idct_put(dest_cr, dct_linesize, block[5]); s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]); s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]); if(!s->chroma_x_shift){//Chroma444 s->dsp.idct_put(dest_cb + 8, dct_linesize, block[8]); s->dsp.idct_put(dest_cr + 8, dct_linesize, block[9]); s->dsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]); s->dsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]); } } }//gray } } skip_idct: if(!readable){ s->dsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16); s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift); s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift); } } }