+++ /dev/null
-/*
- * XVideo Motion Compensation
- * Copyright (c) 2003 Ivan Kalvachev
- *
- * This library 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 of the License, or (at your option) any later version.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <limits.h>
-
-//avcodec include
-#include "avcodec.h"
-#include "dsputil.h"
-#include "mpegvideo.h"
-
-#undef NDEBUG
-#include <assert.h>
-
-#ifdef USE_FASTMEMCPY
-#include "fastmemcpy.h"
-#endif
-
-#ifdef HAVE_XVMC
-
-//X11 includes are in the xvmc_render.h
-//by replacing it with none-X one
-//XvMC emulation could be performed
-
-#include "xvmc_render.h"
-
-//#include "xvmc_debug.h"
-
-static int calc_cbp(MpegEncContext *s, int blocknum){
-/* compute cbp */
-// for I420 bit_offset=5
-int i,cbp = 0;
- for(i=0; i<blocknum; i++) {
- if(s->block_last_index[i] >= 0)
- cbp |= 1 << (5 - i);
- }
- return cbp;
-}
-
-
-
-//these functions should be called on every new field or/and frame
-//They should be safe if they are called few times for same field!
-int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx){
-xvmc_render_state_t * render,* last, * next;
-
- assert(avctx != NULL);
-
- render = (xvmc_render_state_t*)s->current_picture.data[2];
- assert(render != NULL);
- if( (render == NULL) || (render->magic != MP_XVMC_RENDER_MAGIC) )
- return -1;//make sure that this is render packet
-
- render->picture_structure = s->picture_structure;
- render->flags = (s->first_field)? 0: XVMC_SECOND_FIELD;
-
-//make sure that all data is drawn by XVMC_end_frame
- assert(render->filled_mv_blocks_num==0);
-
- render->p_future_surface = NULL;
- render->p_past_surface = NULL;
-
- switch(s->pict_type){
- case I_TYPE:
- return 0;// no prediction from other frames
- case B_TYPE:
- next = (xvmc_render_state_t*)s->next_picture.data[2];
- assert(next!=NULL);
- assert(next->state & MP_XVMC_STATE_PREDICTION);
- if(next == NULL) return -1;
- if(next->magic != MP_XVMC_RENDER_MAGIC) return -1;
- render->p_future_surface = next->p_surface;
- //no return here, going to set forward prediction
- case P_TYPE:
- last = (xvmc_render_state_t*)s->last_picture.data[2];
- if(last == NULL)// && !s->first_field)
- last = render;//predict second field from the first
- if(last->magic != MP_XVMC_RENDER_MAGIC) return -1;
- assert(last->state & MP_XVMC_STATE_PREDICTION);
- render->p_past_surface = last->p_surface;
- return 0;
- }
-
-return -1;
-}
-
-void XVMC_field_end(MpegEncContext *s){
-xvmc_render_state_t * render;
- render = (xvmc_render_state_t*)s->current_picture.data[2];
- assert(render != NULL);
-
- if(render->filled_mv_blocks_num > 0){
-// printf("xvmcvideo.c: rendering %d left blocks after last slice!!!\n",render->filled_mv_blocks_num );
- ff_draw_horiz_band(s,0,0);
- }
-}
-
-void XVMC_decode_mb(MpegEncContext *s, DCTELEM block[6][64]){
-XvMCMacroBlock * mv_block;
-xvmc_render_state_t * render;
-int i,cbp,blocks_per_mb;
-
-const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
-
-
- if(s->encoding){
- fprintf(stderr,"XVMC doesn't support encoding!!!\n");
- assert(0);
- return;
- }
-
- //from MPV_decode_mb(),
- /* update DC predictors for P macroblocks */
- if (!s->mb_intra) {
- s->last_dc[0] =
- s->last_dc[1] =
- s->last_dc[2] = 128 << s->intra_dc_precision;
- }
-
- //MC doesn't skip blocks
- s->mb_skiped = 0;
-
-
- // do I need to export quant when I could not perform postprocessing?
- // anyway, it doesn't hurrt
- s->current_picture.qscale_table[mb_xy] = s->qscale;
-
-//START OF XVMC specific code
- render = (xvmc_render_state_t*)s->current_picture.data[2];
- assert(render!=NULL);
- assert(render->magic==MP_XVMC_RENDER_MAGIC);
- assert(render->mv_blocks);
-
- //take the next free macroblock
- mv_block = &render->mv_blocks[render->start_mv_blocks_num +
- render->filled_mv_blocks_num ];
-
-// memset(mv_block,0,sizeof(XvMCMacroBlock));
-
- mv_block->x = s->mb_x;
- mv_block->y = s->mb_y;
- mv_block->dct_type = s->interlaced_dct;//XVMC_DCT_TYPE_FRAME/FIELD;
-// mv_block->motion_type = 0; //zero to silense warnings
- if(s->mb_intra){
- mv_block->macroblock_type = XVMC_MB_TYPE_INTRA;//no MC, all done
- }else{
- mv_block->macroblock_type = XVMC_MB_TYPE_PATTERN;
-
- if(s->mv_dir & MV_DIR_FORWARD){
- mv_block->macroblock_type|= XVMC_MB_TYPE_MOTION_FORWARD;
- //pmv[n][dir][xy]=mv[dir][n][xy]
- mv_block->PMV[0][0][0] = s->mv[0][0][0];
- mv_block->PMV[0][0][1] = s->mv[0][0][1];
- mv_block->PMV[1][0][0] = s->mv[0][1][0];
- mv_block->PMV[1][0][1] = s->mv[0][1][1];
- }
- if(s->mv_dir & MV_DIR_BACKWARD){
- mv_block->macroblock_type|=XVMC_MB_TYPE_MOTION_BACKWARD;
- mv_block->PMV[0][1][0] = s->mv[1][0][0];
- mv_block->PMV[0][1][1] = s->mv[1][0][1];
- mv_block->PMV[1][1][0] = s->mv[1][1][0];
- mv_block->PMV[1][1][1] = s->mv[1][1][1];
- }
-
- switch(s->mv_type){
- case MV_TYPE_16X16:
- mv_block->motion_type = XVMC_PREDICTION_FRAME;
- break;
- case MV_TYPE_16X8:
- mv_block->motion_type = XVMC_PREDICTION_16x8;
- break;
- case MV_TYPE_FIELD:
- mv_block->motion_type = XVMC_PREDICTION_FIELD;
- if(s->picture_structure == PICT_FRAME){
- mv_block->PMV[0][0][1]<<=1;
- mv_block->PMV[1][0][1]<<=1;
- mv_block->PMV[0][1][1]<<=1;
- mv_block->PMV[1][1][1]<<=1;
- }
- break;
- case MV_TYPE_DMV:
- mv_block->motion_type = XVMC_PREDICTION_DUAL_PRIME;
- if(s->picture_structure == PICT_FRAME){
-
- mv_block->PMV[0][0][0] = s->mv[0][0][0];//top from top
- mv_block->PMV[0][0][1] = s->mv[0][0][1]<<1;
-
- mv_block->PMV[0][1][0] = s->mv[0][0][0];//bottom from bottom
- mv_block->PMV[0][1][1] = s->mv[0][0][1]<<1;
-
- mv_block->PMV[1][0][0] = s->mv[0][2][0];//dmv00, top from bottom
- mv_block->PMV[1][0][1] = s->mv[0][2][1]<<1;//dmv01
-
- mv_block->PMV[1][1][0] = s->mv[0][3][0];//dmv10, bottom from top
- mv_block->PMV[1][1][1] = s->mv[0][3][1]<<1;//dmv11
-
- }else{
- mv_block->PMV[0][1][0] = s->mv[0][2][0];//dmv00
- mv_block->PMV[0][1][1] = s->mv[0][2][1];//dmv01
- }
- break;
- default:
- assert(0);
- }
-
- mv_block->motion_vertical_field_select = 0;
-
-//set correct field referenses
- if(s->mv_type == MV_TYPE_FIELD || s->mv_type == MV_TYPE_16X8){
- if( s->field_select[0][0] ) mv_block->motion_vertical_field_select|=1;
- if( s->field_select[1][0] ) mv_block->motion_vertical_field_select|=2;
- if( s->field_select[0][1] ) mv_block->motion_vertical_field_select|=4;
- if( s->field_select[1][1] ) mv_block->motion_vertical_field_select|=8;
- }
- }//!intra
-//time to handle data blocks;
- mv_block->index = render->next_free_data_block_num;
- blocks_per_mb = 6;
-/*
- switch( s->chroma_format){
- case CHROMA_422:
- blocks_per_mb = 8;
- break;
- case CHROMA_444:
- blocks_per_mb = 12;
- break;
- }
-*/
- if(s->flags & CODEC_FLAG_GRAY){
- if(s->mb_intra){//intra frames are alwasy full chroma block
- memset(block[4],0,sizeof(short)*8*8);//so we need to clear them
- memset(block[5],0,sizeof(short)*8*8);
- if(!render->unsigned_intra)
- block[4][0] = block[5][0] = 1<<10;
- }
- else
- blocks_per_mb = 4;//Luminance blocks only
- };
- cbp = calc_cbp(s,blocks_per_mb);
- mv_block->coded_block_pattern = cbp;
- if(cbp == 0)
- mv_block->macroblock_type &= ~XVMC_MB_TYPE_PATTERN;
-
- for(i=0; i<blocks_per_mb; i++){
- if(s->block_last_index[i] >= 0){
- // i do not have unsigned_intra MOCO to test, hope it is OK
- if( (s->mb_intra) && ( render->idct || (!render->idct && !render->unsigned_intra)) )
- block[i][0]-=1<<10;
- if(!render->idct){
- s->dsp.idct(block[i]);
- //!!TODO!clip!!!
- }
-//TODO:avoid block copy by modifying s->block pointer
- memcpy(&render->data_blocks[(render->next_free_data_block_num++)*64],
- block[i],sizeof(short)*8*8);
- }
- }
- render->filled_mv_blocks_num++;
-
- assert(render->filled_mv_blocks_num <= render->total_number_of_mv_blocks);
- assert(render->next_free_data_block_num <= render->total_number_of_data_blocks);
-
-
- if(render->filled_mv_blocks_num >= render->total_number_of_mv_blocks)
- ff_draw_horiz_band(s,0,0);
-
-// DumpRenderInfo(render);
-// DumpMBlockInfo(mv_block);
-
-}
-
-#endif
projects / synfig.git / blobdiff