| 1 | /*
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| 2 | * XVideo Motion Compensation
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| 3 | * Copyright (c) 2003 Ivan Kalvachev
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| 4 | *
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| 5 | * This library is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU Lesser General Public
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| 7 | * License as published by the Free Software Foundation; either
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| 8 | * version 2 of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This library is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | * Lesser General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU Lesser General Public
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| 16 | * License along with this library; if not, write to the Free Software
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| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| 18 | */
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| 19 |
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| 20 | #include <limits.h>
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| 21 |
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| 22 | //avcodec include
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| 23 | #include "avcodec.h"
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| 24 | #include "dsputil.h"
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| 25 | #include "mpegvideo.h"
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| 26 |
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| 27 | #undef NDEBUG
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| 28 | #include <assert.h>
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| 29 |
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| 30 | #ifdef USE_FASTMEMCPY
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| 31 | #include "fastmemcpy.h"
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| 32 | #endif
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| 33 |
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| 34 | #ifdef HAVE_XVMC
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| 35 |
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| 36 | //X11 includes are in the xvmc_render.h
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| 37 | //by replacing it with none-X one
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| 38 | //XvMC emulation could be performed
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| 39 |
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| 40 | #include "xvmc_render.h"
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| 41 |
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| 42 | //#include "xvmc_debug.h"
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| 43 |
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| 44 | //set s->block
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| 45 | inline void XVMC_init_block(MpegEncContext *s){
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| 46 | xvmc_render_state_t * render;
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| 47 | render = (xvmc_render_state_t*)s->current_picture.data[2];
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| 48 | assert(render != NULL);
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| 49 | if( (render == NULL) || (render->magic != MP_XVMC_RENDER_MAGIC) ){
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| 50 | assert(0);
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| 51 | return;//make sure that this is render packet
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| 52 | }
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| 53 | s->block =(DCTELEM *)(render->data_blocks+(render->next_free_data_block_num)*64);
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| 54 | }
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| 55 |
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| 56 | void XVMC_pack_pblocks(MpegEncContext *s, int cbp){
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| 57 | int i,j;
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| 58 | const int mb_block_count = 4+(1<<s->chroma_format);
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| 59 |
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| 60 | j=0;
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| 61 | cbp<<= 12-mb_block_count;
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| 62 | for(i=0; i<mb_block_count; i++){
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| 63 | if(cbp & (1<<11)) {
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| 64 | s->pblocks[i] = (short *)(&s->block[(j++)]);
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| 65 | }else{
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| 66 | s->pblocks[i] = NULL;
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| 67 | }
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| 68 | cbp+=cbp;
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| 69 | // printf("s->pblocks[%d]=%p ,s->block=%p cbp=%d\n",i,s->pblocks[i],s->block,cbp);
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| 70 | }
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| 71 | }
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| 72 |
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| 73 | //these functions should be called on every new field or/and frame
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| 74 | //They should be safe if they are called few times for same field!
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| 75 | int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx){
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| 76 | xvmc_render_state_t * render,* last, * next;
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| 77 |
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| 78 | assert(avctx != NULL);
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| 79 |
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| 80 | render = (xvmc_render_state_t*)s->current_picture.data[2];
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| 81 | assert(render != NULL);
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| 82 | if( (render == NULL) || (render->magic != MP_XVMC_RENDER_MAGIC) )
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| 83 | return -1;//make sure that this is render packet
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| 84 |
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| 85 | render->picture_structure = s->picture_structure;
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| 86 | render->flags = (s->first_field)? 0: XVMC_SECOND_FIELD;
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| 87 |
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| 88 | //make sure that all data is drawn by XVMC_end_frame
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| 89 | assert(render->filled_mv_blocks_num==0);
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| 90 |
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| 91 | render->p_future_surface = NULL;
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| 92 | render->p_past_surface = NULL;
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| 93 |
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| 94 | switch(s->pict_type){
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| 95 | case I_TYPE:
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| 96 | return 0;// no prediction from other frames
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| 97 | case B_TYPE:
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| 98 | next = (xvmc_render_state_t*)s->next_picture.data[2];
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| 99 | assert(next!=NULL);
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| 100 | assert(next->state & MP_XVMC_STATE_PREDICTION);
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| 101 | if(next == NULL) return -1;
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| 102 | if(next->magic != MP_XVMC_RENDER_MAGIC) return -1;
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| 103 | render->p_future_surface = next->p_surface;
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| 104 | //no return here, going to set forward prediction
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| 105 | case P_TYPE:
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| 106 | last = (xvmc_render_state_t*)s->last_picture.data[2];
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| 107 | if(last == NULL)// && !s->first_field)
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| 108 | last = render;//predict second field from the first
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| 109 | if(last->magic != MP_XVMC_RENDER_MAGIC) return -1;
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| 110 | assert(last->state & MP_XVMC_STATE_PREDICTION);
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| 111 | render->p_past_surface = last->p_surface;
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| 112 | return 0;
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| 113 | }
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| 114 |
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| 115 | return -1;
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| 116 | }
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| 117 |
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| 118 | void XVMC_field_end(MpegEncContext *s){
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| 119 | xvmc_render_state_t * render;
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| 120 | render = (xvmc_render_state_t*)s->current_picture.data[2];
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| 121 | assert(render != NULL);
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| 122 |
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| 123 | if(render->filled_mv_blocks_num > 0){
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| 124 | // printf("xvmcvideo.c: rendering %d left blocks after last slice!!!\n",render->filled_mv_blocks_num );
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| 125 | ff_draw_horiz_band(s,0,0);
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| 126 | }
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| 127 | }
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| 128 |
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| 129 | void XVMC_decode_mb(MpegEncContext *s){
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| 130 | XvMCMacroBlock * mv_block;
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| 131 | xvmc_render_state_t * render;
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| 132 | int i,cbp,blocks_per_mb;
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| 133 |
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| 134 | const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
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| 135 |
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| 136 |
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| 137 | if(s->encoding){
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| 138 | av_log(s->avctx, AV_LOG_ERROR, "XVMC doesn't support encoding!!!\n");
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| 139 | return -1;
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| 140 | }
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| 141 |
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| 142 | //from MPV_decode_mb(),
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| 143 | /* update DC predictors for P macroblocks */
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| 144 | if (!s->mb_intra) {
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| 145 | s->last_dc[0] =
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| 146 | s->last_dc[1] =
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| 147 | s->last_dc[2] = 128 << s->intra_dc_precision;
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| 148 | }
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| 149 |
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| 150 | //MC doesn't skip blocks
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| 151 | s->mb_skipped = 0;
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| 152 |
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| 153 |
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| 154 | // do I need to export quant when I could not perform postprocessing?
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| 155 | // anyway, it doesn't hurrt
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| 156 | s->current_picture.qscale_table[mb_xy] = s->qscale;
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| 157 |
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| 158 | //START OF XVMC specific code
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| 159 | render = (xvmc_render_state_t*)s->current_picture.data[2];
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| 160 | assert(render!=NULL);
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| 161 | assert(render->magic==MP_XVMC_RENDER_MAGIC);
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| 162 | assert(render->mv_blocks);
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| 163 |
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| 164 | //take the next free macroblock
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| 165 | mv_block = &render->mv_blocks[render->start_mv_blocks_num +
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| 166 | render->filled_mv_blocks_num ];
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| 167 |
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| 168 | // memset(mv_block,0,sizeof(XvMCMacroBlock));
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| 169 |
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| 170 | mv_block->x = s->mb_x;
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| 171 | mv_block->y = s->mb_y;
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| 172 | mv_block->dct_type = s->interlaced_dct;//XVMC_DCT_TYPE_FRAME/FIELD;
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| 173 | // mv_block->motion_type = 0; //zero to silense warnings
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| 174 | if(s->mb_intra){
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| 175 | mv_block->macroblock_type = XVMC_MB_TYPE_INTRA;//no MC, all done
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| 176 | }else{
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| 177 | mv_block->macroblock_type = XVMC_MB_TYPE_PATTERN;
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| 178 |
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| 179 | if(s->mv_dir & MV_DIR_FORWARD){
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| 180 | mv_block->macroblock_type|= XVMC_MB_TYPE_MOTION_FORWARD;
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| 181 | //pmv[n][dir][xy]=mv[dir][n][xy]
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| 182 | mv_block->PMV[0][0][0] = s->mv[0][0][0];
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| 183 | mv_block->PMV[0][0][1] = s->mv[0][0][1];
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| 184 | mv_block->PMV[1][0][0] = s->mv[0][1][0];
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| 185 | mv_block->PMV[1][0][1] = s->mv[0][1][1];
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| 186 | }
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| 187 | if(s->mv_dir & MV_DIR_BACKWARD){
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| 188 | mv_block->macroblock_type|=XVMC_MB_TYPE_MOTION_BACKWARD;
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| 189 | mv_block->PMV[0][1][0] = s->mv[1][0][0];
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| 190 | mv_block->PMV[0][1][1] = s->mv[1][0][1];
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| 191 | mv_block->PMV[1][1][0] = s->mv[1][1][0];
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| 192 | mv_block->PMV[1][1][1] = s->mv[1][1][1];
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| 193 | }
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| 194 |
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| 195 | switch(s->mv_type){
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| 196 | case MV_TYPE_16X16:
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| 197 | mv_block->motion_type = XVMC_PREDICTION_FRAME;
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| 198 | break;
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| 199 | case MV_TYPE_16X8:
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| 200 | mv_block->motion_type = XVMC_PREDICTION_16x8;
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| 201 | break;
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| 202 | case MV_TYPE_FIELD:
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| 203 | mv_block->motion_type = XVMC_PREDICTION_FIELD;
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| 204 | if(s->picture_structure == PICT_FRAME){
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| 205 | mv_block->PMV[0][0][1]<<=1;
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| 206 | mv_block->PMV[1][0][1]<<=1;
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| 207 | mv_block->PMV[0][1][1]<<=1;
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| 208 | mv_block->PMV[1][1][1]<<=1;
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| 209 | }
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| 210 | break;
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| 211 | case MV_TYPE_DMV:
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| 212 | mv_block->motion_type = XVMC_PREDICTION_DUAL_PRIME;
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| 213 | if(s->picture_structure == PICT_FRAME){
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| 214 |
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| 215 | mv_block->PMV[0][0][0] = s->mv[0][0][0];//top from top
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| 216 | mv_block->PMV[0][0][1] = s->mv[0][0][1]<<1;
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| 217 |
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| 218 | mv_block->PMV[0][1][0] = s->mv[0][0][0];//bottom from bottom
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| 219 | mv_block->PMV[0][1][1] = s->mv[0][0][1]<<1;
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| 220 |
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| 221 | mv_block->PMV[1][0][0] = s->mv[0][2][0];//dmv00, top from bottom
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| 222 | mv_block->PMV[1][0][1] = s->mv[0][2][1]<<1;//dmv01
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| 223 |
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| 224 | mv_block->PMV[1][1][0] = s->mv[0][3][0];//dmv10, bottom from top
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| 225 | mv_block->PMV[1][1][1] = s->mv[0][3][1]<<1;//dmv11
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| 226 |
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| 227 | }else{
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| 228 | mv_block->PMV[0][1][0] = s->mv[0][2][0];//dmv00
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| 229 | mv_block->PMV[0][1][1] = s->mv[0][2][1];//dmv01
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| 230 | }
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| 231 | break;
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| 232 | default:
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| 233 | assert(0);
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| 234 | }
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| 235 |
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| 236 | mv_block->motion_vertical_field_select = 0;
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| 237 |
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| 238 | //set correct field referenses
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| 239 | if(s->mv_type == MV_TYPE_FIELD || s->mv_type == MV_TYPE_16X8){
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| 240 | if( s->field_select[0][0] ) mv_block->motion_vertical_field_select|=1;
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| 241 | if( s->field_select[1][0] ) mv_block->motion_vertical_field_select|=2;
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| 242 | if( s->field_select[0][1] ) mv_block->motion_vertical_field_select|=4;
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| 243 | if( s->field_select[1][1] ) mv_block->motion_vertical_field_select|=8;
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| 244 | }
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| 245 | }//!intra
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| 246 | //time to handle data blocks;
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| 247 | mv_block->index = render->next_free_data_block_num;
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| 248 |
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| 249 | blocks_per_mb = 6;
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| 250 | if( s->chroma_format >= 2){
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| 251 | blocks_per_mb = 4 + (1 << (s->chroma_format));
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| 252 | }
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| 253 |
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| 254 | // calculate cbp
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| 255 | cbp = 0;
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| 256 | for(i=0; i<blocks_per_mb; i++) {
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| 257 | cbp+= cbp;
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| 258 | if(s->block_last_index[i] >= 0)
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| 259 | cbp++;
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| 260 | }
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| 261 |
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| 262 | if(s->flags & CODEC_FLAG_GRAY){
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| 263 | if(s->mb_intra){//intra frames are alwasy full chroma block
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| 264 | for(i=4; i<blocks_per_mb; i++){
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| 265 | memset(s->pblocks[i],0,sizeof(short)*8*8);//so we need to clear them
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| 266 | if(!render->unsigned_intra)
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| 267 | s->pblocks[i][0] = 1<<10;
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| 268 | }
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| 269 | }else{
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| 270 | cbp&= 0xf << (blocks_per_mb - 4);
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| 271 | blocks_per_mb = 4;//Luminance blocks only
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| 272 | }
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| 273 | }
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| 274 | mv_block->coded_block_pattern = cbp;
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| 275 | if(cbp == 0)
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| 276 | mv_block->macroblock_type &= ~XVMC_MB_TYPE_PATTERN;
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| 277 |
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| 278 | for(i=0; i<blocks_per_mb; i++){
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| 279 | if(s->block_last_index[i] >= 0){
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| 280 | // i do not have unsigned_intra MOCO to test, hope it is OK
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| 281 | if( (s->mb_intra) && ( render->idct || (!render->idct && !render->unsigned_intra)) )
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| 282 | s->pblocks[i][0]-=1<<10;
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| 283 | if(!render->idct){
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| 284 | s->dsp.idct(s->pblocks[i]);
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| 285 | //!!TODO!clip!!!
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| 286 | }
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| 287 | //copy blocks only if the codec doesn't support pblocks reordering
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| 288 | if(s->avctx->xvmc_acceleration == 1){
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| 289 | memcpy(&render->data_blocks[(render->next_free_data_block_num)*64],
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| 290 | s->pblocks[i],sizeof(short)*8*8);
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| 291 | }else{
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| 292 | /* if(s->pblocks[i] != &render->data_blocks[
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| 293 | (render->next_free_data_block_num)*64]){
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| 294 | printf("ERROR mb(%d,%d) s->pblocks[i]=%p data_block[]=%p\n",
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| 295 | s->mb_x,s->mb_y, s->pblocks[i],
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| 296 | &render->data_blocks[(render->next_free_data_block_num)*64]);
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| 297 | }*/
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| 298 | }
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| 299 | render->next_free_data_block_num++;
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| 300 | }
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| 301 | }
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| 302 | render->filled_mv_blocks_num++;
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| 303 |
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| 304 | assert(render->filled_mv_blocks_num <= render->total_number_of_mv_blocks);
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| 305 | assert(render->next_free_data_block_num <= render->total_number_of_data_blocks);
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| 306 |
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| 307 |
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| 308 | if(render->filled_mv_blocks_num >= render->total_number_of_mv_blocks)
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| 309 | ff_draw_horiz_band(s,0,0);
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| 310 |
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| 311 | // DumpRenderInfo(render);
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| 312 | // DumpMBlockInfo(mv_block);
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| 313 |
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| 314 | }
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| 315 |
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| 316 | #endif
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