mirror of https://github.com/FFmpeg/FFmpeg.git
Originally committed as revision 2085 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
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ff862be5ed
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2e7b4c8442
6 changed files with 356 additions and 2 deletions
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <ctype.h> |
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#include <limits.h> |
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//X11 include
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#include <X11/Xlib.h> |
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#include <X11/Xutil.h> |
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#include <X11/Xatom.h> |
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#include <X11/extensions/Xv.h> |
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#include <X11/extensions/Xvlib.h> |
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#include <X11/extensions/XvMClib.h> |
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#include "xvmc_render.h" |
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//avcodec include
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "mpegvideo.h" |
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#undef NDEBUG |
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#include <assert.h> |
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#ifdef USE_FASTMEMCPY |
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#include "fastmemcpy.h" |
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#endif |
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#ifdef HAVE_XVMC |
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//#include "xvmc_debug.h"
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static int calc_cbp(MpegEncContext *s, int blocknum){ |
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/* compute cbp */ |
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// for I420 bit_offset=5
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int i,cbp = 0; |
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for(i=0; i<blocknum; i++) { |
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if(s->block_last_index[i] >= 0) |
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cbp |= 1 << (5 - i); |
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} |
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return cbp; |
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} |
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//these functions should be called on every new field or/and frame
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//They should be safe if they are called few times for same field!
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int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx){ |
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xvmc_render_state_t * render,* last, * next; |
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assert(avctx != NULL); |
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render = (xvmc_render_state_t*)s->current_picture.data[2]; |
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assert(render != NULL); |
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render->picture_structure = s->picture_structure; |
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render->flags = (s->first_field)? 0: XVMC_SECOND_FIELD; |
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//make sure that all data is drawn by XVMC_end_frame
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assert(render->filled_mv_blocks_num==0); |
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render->p_future_surface = NULL; |
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render->p_past_surface = NULL; |
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switch(s->pict_type){ |
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case I_TYPE: |
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return 0;// no prediction from other frames
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case B_TYPE: |
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next = (xvmc_render_state_t*)s->next_picture.data[2]; |
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assert(next!=NULL); |
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assert(next->state & MP_XVMC_STATE_PREDICTION); |
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render->p_future_surface = next->p_surface; |
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//no return here, going to set forward prediction
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case P_TYPE: |
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last = (xvmc_render_state_t*)s->last_picture.data[2]; |
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if(last == NULL)// && !s->first_field)
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last = render;//predict second field from the first
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assert(last->state & MP_XVMC_STATE_PREDICTION); |
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render->p_past_surface = last->p_surface; |
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return 0; |
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} |
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return -1; |
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} |
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void XVMC_field_end(MpegEncContext *s){ |
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xvmc_render_state_t * render; |
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render = (xvmc_render_state_t*)s->current_picture.data[2]; |
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assert(render != NULL); |
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if(render->filled_mv_blocks_num > 0){ |
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// printf("xvmcvideo.c: rendering %d left blocks after last slice!!!\n",render->filled_mv_blocks_num );
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ff_draw_horiz_band(s,0,0); |
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} |
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} |
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void XVMC_decode_mb(MpegEncContext *s, DCTELEM block[6][64]){ |
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XvMCMacroBlock * mv_block; |
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xvmc_render_state_t * render; |
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int i,cbp,blocks_per_mb; |
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const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; |
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if(s->encoding){ |
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fprintf(stderr,"XVMC doesn't support encoding!!!\n"); |
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assert(0); |
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return; |
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} |
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//from MPV_decode_mb(),
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/* update DC predictors for P macroblocks */ |
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if (!s->mb_intra) { |
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s->last_dc[0] = |
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s->last_dc[1] = |
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s->last_dc[2] = 128 << s->intra_dc_precision; |
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} |
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//MC doesn't skip blocks
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s->mb_skiped = 0; |
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// do I need to export quant when I could not perform postprocessing?
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// anyway, it doesn't hurrt
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s->current_picture.qscale_table[mb_xy] = s->qscale; |
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//START OF XVMC specific code
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render = (xvmc_render_state_t*)s->current_picture.data[2]; |
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assert(render!=NULL); |
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assert(render->magic==MP_XVMC_RENDER_MAGIC); |
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assert(render->mv_blocks); |
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//take the next free macroblock
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mv_block = &render->mv_blocks[render->start_mv_blocks_num +
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render->filled_mv_blocks_num ]; |
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// memset(mv_block,0,sizeof(XvMCMacroBlock));
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mv_block->x = s->mb_x; |
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mv_block->y = s->mb_y; |
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mv_block->dct_type = s->interlaced_dct;//XVMC_DCT_TYPE_FRAME/FIELD;
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// mv_block->motion_type = 0; //zero to silense warnings
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if(s->mb_intra){ |
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mv_block->macroblock_type = XVMC_MB_TYPE_INTRA;//no MC, all done
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}else{ |
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mv_block->macroblock_type = XVMC_MB_TYPE_PATTERN; |
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if(s->mv_dir & MV_DIR_FORWARD){ |
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mv_block->macroblock_type|= XVMC_MB_TYPE_MOTION_FORWARD; |
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//pmv[n][dir][xy]=mv[dir][n][xy]
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mv_block->PMV[0][0][0] = s->mv[0][0][0]; |
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mv_block->PMV[0][0][1] = s->mv[0][0][1]; |
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mv_block->PMV[1][0][0] = s->mv[0][1][0]; |
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mv_block->PMV[1][0][1] = s->mv[0][1][1]; |
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} |
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if(s->mv_dir & MV_DIR_BACKWARD){ |
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mv_block->macroblock_type|=XVMC_MB_TYPE_MOTION_BACKWARD; |
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mv_block->PMV[0][1][0] = s->mv[1][0][0]; |
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mv_block->PMV[0][1][1] = s->mv[1][0][1]; |
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mv_block->PMV[1][1][0] = s->mv[1][1][0]; |
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mv_block->PMV[1][1][1] = s->mv[1][1][1]; |
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} |
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switch(s->mv_type){ |
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case MV_TYPE_16X16: |
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mv_block->motion_type = XVMC_PREDICTION_FRAME; |
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break; |
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case MV_TYPE_16X8: |
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mv_block->motion_type = XVMC_PREDICTION_16x8; |
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break; |
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case MV_TYPE_FIELD: |
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mv_block->motion_type = XVMC_PREDICTION_FIELD; |
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if(s->picture_structure == PICT_FRAME){ |
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mv_block->PMV[0][0][1]<<=1; |
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mv_block->PMV[1][0][1]<<=1; |
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mv_block->PMV[0][1][1]<<=1; |
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mv_block->PMV[1][1][1]<<=1; |
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} |
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break; |
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case MV_TYPE_DMV: |
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mv_block->motion_type = XVMC_PREDICTION_DUAL_PRIME; |
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if(s->picture_structure == PICT_FRAME){ |
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mv_block->PMV[0][0][0] = s->mv[0][0][0];//top from top
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mv_block->PMV[0][0][1] = s->mv[0][0][1]<<1; |
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mv_block->PMV[0][1][0] = s->mv[0][0][0];//bottom from bottom
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mv_block->PMV[0][1][1] = s->mv[0][0][1]<<1; |
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mv_block->PMV[1][0][0] = s->mv[0][2][0];//dmv00, top from bottom
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mv_block->PMV[1][0][1] = s->mv[0][2][1]<<1;//dmv01
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mv_block->PMV[1][1][0] = s->mv[0][3][0];//dmv10, bottom from top
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mv_block->PMV[1][1][1] = s->mv[0][3][1]<<1;//dmv11
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}else{ |
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mv_block->PMV[0][1][0] = s->mv[0][2][0];//dmv00
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mv_block->PMV[0][1][1] = s->mv[0][2][1];//dmv01
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} |
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break; |
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default: |
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assert(0); |
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} |
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mv_block->motion_vertical_field_select = 0; |
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//set correct field referenses
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if(s->mv_type == MV_TYPE_FIELD || s->mv_type == MV_TYPE_16X8){ |
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if( s->field_select[0][0] ) mv_block->motion_vertical_field_select|=1; |
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if( s->field_select[1][0] ) mv_block->motion_vertical_field_select|=2; |
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if( s->field_select[0][1] ) mv_block->motion_vertical_field_select|=4; |
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if( s->field_select[1][1] ) mv_block->motion_vertical_field_select|=8; |
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} |
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}//!intra
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//time to handle data blocks;
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mv_block->index = render->next_free_data_block_num; |
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blocks_per_mb = 6; |
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/*
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switch( s->chroma_format){ |
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case CHROMA_422: |
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blocks_per_mb = 8; |
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break; |
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case CHROMA_444: |
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blocks_per_mb = 12; |
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break; |
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} |
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*/ |
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if(s->flags & CODEC_FLAG_GRAY){ |
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if(s->mb_intra){//intra frames are alwasy full chroma block
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memset(block[4],0,sizeof(short)*8*8);//so we need to clear them
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memset(block[5],0,sizeof(short)*8*8); |
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if(!render->unsigned_intra) |
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block[4][0] = block[5][0] = 1<<10; |
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} |
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else |
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blocks_per_mb = 4;//Luminance blocks only
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}; |
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cbp = calc_cbp(s,blocks_per_mb); |
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mv_block->coded_block_pattern = cbp; |
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if(cbp == 0) |
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mv_block->macroblock_type &= ~XVMC_MB_TYPE_PATTERN; |
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for(i=0; i<blocks_per_mb; i++){ |
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if(s->block_last_index[i] >= 0){ |
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// i do not have unsigned_intra MOCO to test, hope it is OK
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if( (s->mb_intra) && ( render->idct || (!render->idct && !render->unsigned_intra)) ) |
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block[i][0]-=1<<10; |
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if(!render->idct){ |
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s->dsp.idct(block[i]); |
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//!!TODO!clip!!!
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} |
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//TODO:avoid block copy by modifying s->block pointer
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memcpy(&render->data_blocks[(render->next_free_data_block_num++)*64], |
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block[i],sizeof(short)*8*8); |
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} |
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} |
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render->filled_mv_blocks_num++; |
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assert(render->filled_mv_blocks_num <= render->total_number_of_mv_blocks); |
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assert(render->next_free_data_block_num <= render->total_number_of_data_blocks); |
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if(render->filled_mv_blocks_num >= render->total_number_of_mv_blocks) |
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ff_draw_horiz_band(s,0,0); |
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// DumpRenderInfo(render);
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// DumpMBlockInfo(mv_block);
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} |
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#endif |
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