visualize.c
资源名称:X264CODEC.rar [点击查看]
上传用户:lctgjx
上传日期:2022-06-04
资源大小:8887k
文件大小:14k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*****************************************************************************
- * x264: h264 encoder
- *****************************************************************************
- * Copyright (C) 2005 Tuukka Toivonen <tuukkat@ee.oulu.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
- *****************************************************************************/
- /*
- * Some explanation of the symbols used:
- * Red/pink: intra block
- * Blue: inter block
- * Green: skip block
- * Yellow: B-block (not visualized properly yet)
- *
- * Motion vectors have black dot at their target (ie. at the MB center),
- * instead of arrowhead. The black dot is enclosed in filled diamond with radius
- * depending on reference frame number (one frame back = zero width, normal case).
- *
- * The intra blocks have generally lines drawn perpendicular
- * to the prediction direction, so for example, if there is a pink block
- * with horizontal line at the top of it, it is interpolated by assuming
- * luma to be vertically constant.
- * DC predicted blocks have both horizontal and vertical lines,
- * pink blocks with a diagonal line are predicted using the planar function.
- */
- #include "common.h"
- #include "visualize.h"
- #include "display.h"
- typedef struct {
- int i_type;
- int i_partition;
- int i_sub_partition[4];
- int i_intra16x16_pred_mode;
- int intra4x4_pred_mode[4][4];
- int8_t ref[2][4][4]; /* [list][y][x] */
- int16_t mv[2][4][4][2]; /* [list][y][x][mvxy] */
- } visualize_t;
- /* {{{ [fold] char *get_string(const stringlist_t *sl, int entries, int code) */
- /* Return string from stringlist corresponding to the given code */
- #define GET_STRING(sl, code) get_string((sl), sizeof(sl)/sizeof(*(sl)), code)
- typedef struct {
- int code;
- char *string;
- } stringlist_t;
- static char *get_string(const stringlist_t *sl, int entries, int code)
- {
- int i;
- for (i=0; i<entries; i++) {
- if (sl[i].code==code) break;
- }
- return (i>=entries) ? "?" : sl[i].string;
- }
- /* }}} */
- /* {{{ [fold] void mv(int x0, int y0, int16_t dmv[2], int ref, int zoom, char *col) */
- /* Plot motion vector */
- static void mv(int x0, int y0, int16_t dmv[2], int ref, int zoom, char *col)
- {
- int dx = dmv[0];
- int dy = dmv[1];
- int i;
- dx = (dx * zoom + 2) >> 2; /* Quarter pixel accurate MVs */
- dy = (dy * zoom + 2) >> 2;
- disp_line(0, x0, y0, x0+dx, y0+dy);
- for (i=1; i<ref; i++){
- disp_line(0, x0, y0-i, x0+i, y0);
- disp_line(0, x0+i, y0, x0, y0+i);
- disp_line(0, x0, y0+i, x0-i, y0);
- disp_line(0, x0-i, y0, x0, y0-i);
- }
- disp_setcolor("black");
- disp_point(0, x0, y0);
- disp_setcolor(col);
- }
- /* }}} */
- /* {{{ [fold] void x264_visualize_init( x264_t *h ) */
- int x264_visualize_init( x264_t *h )
- {
- int mb = h->sps->i_mb_width * h->sps->i_mb_height;
- CHECKED_MALLOC( h->visualize, mb * sizeof(visualize_t) );
- return 0;
- fail:
- return -1;
- }
- /* }}} */
- /* {{{ [fold] void x264_visualize_mb( x264_t *h ) */
- void x264_visualize_mb( x264_t *h )
- {
- visualize_t *v = (visualize_t*)h->visualize + h->mb.i_mb_xy;
- int i, l, x, y;
- /* Save all data for the MB what we need for drawing the visualization */
- v->i_type = h->mb.i_type;
- v->i_partition = h->mb.i_partition;
- for (i=0; i<4; i++) v->i_sub_partition[i] = h->mb.i_sub_partition[i];
- for (y=0; y<4; y++) for (x=0; x<4; x++)
- v->intra4x4_pred_mode[y][x] = h->mb.cache.intra4x4_pred_mode[X264_SCAN8_0+y*8+x];
- for (l=0; l<2; l++) for (y=0; y<4; y++) for (x=0; x<4; x++) {
- for (i=0; i<2; i++) {
- v->mv[l][y][x][i] = h->mb.cache.mv[l][X264_SCAN8_0+y*8+x][i];
- }
- v->ref[l][y][x] = h->mb.cache.ref[l][X264_SCAN8_0+y*8+x];
- }
- v->i_intra16x16_pred_mode = h->mb.i_intra16x16_pred_mode;
- }
- /* }}} */
- /* {{{ [fold] void x264_visualize_close( x264_t *h ) */
- void x264_visualize_close( x264_t *h )
- {
- x264_free(h->visualize);
- }
- /* }}} */
- /* {{{ [fold] void x264_visualize_show( x264_t *h ) */
- /* Display visualization (block types, MVs) of the encoded frame */
- /* FIXME: B-type MBs not handled yet properly */
- void x264_visualize_show( x264_t *h )
- {
- int mb_xy;
- static const stringlist_t mb_types[] = {
- /* Block types marked as NULL will not be drawn */
- { I_4x4 , "red" },
- { I_8x8 , "#ff5640" },
- { I_16x16 , "#ff8060" },
- { I_PCM , "violet" },
- { P_L0 , "SlateBlue" },
- { P_8x8 , "blue" },
- { P_SKIP , "green" },
- { B_DIRECT, "yellow" },
- { B_L0_L0 , "yellow" },
- { B_L0_L1 , "yellow" },
- { B_L0_BI , "yellow" },
- { B_L1_L0 , "yellow" },
- { B_L1_L1 , "yellow" },
- { B_L1_BI , "yellow" },
- { B_BI_L0 , "yellow" },
- { B_BI_L1 , "yellow" },
- { B_BI_BI , "yellow" },
- { B_8x8 , "yellow" },
- { B_SKIP , "yellow" },
- };
- static const int waitkey = 1; /* Wait for enter after each frame */
- static const int drawbox = 1; /* Draw box around each block */
- static const int borders = 0; /* Display extrapolated borders outside frame */
- static const int zoom = 2; /* Zoom factor */
- static const int pad = 32;
- uint8_t *const frame = h->fdec->plane[0];
- const int width = h->param.i_width;
- const int height = h->param.i_height;
- const int stride = h->fdec->i_stride[0];
- if (borders) {
- disp_gray_zoom(0, frame - pad*stride - pad, width+2*pad, height+2*pad, stride, "fdec", zoom);
- } else {
- disp_gray_zoom(0, frame, width, height, stride, "fdec", zoom);
- }
- for( mb_xy = 0; mb_xy < h->sps->i_mb_width * h->sps->i_mb_height; mb_xy++ )
- {
- visualize_t *const v = (visualize_t*)h->visualize + mb_xy;
- const int mb_y = mb_xy / h->sps->i_mb_width;
- const int mb_x = mb_xy % h->sps->i_mb_width;
- char *const col = GET_STRING(mb_types, v->i_type);
- int x = mb_x*16*zoom;
- int y = mb_y*16*zoom;
- int l = 0;
- unsigned int i, j;
- if (col==NULL) continue;
- if (borders) {
- x += pad*zoom;
- y += pad*zoom;
- }
- disp_setcolor(col);
- if (drawbox) disp_rect(0, x, y, x+16*zoom-1, y+16*zoom-1);
- if (v->i_type==P_L0 || v->i_type==P_8x8 || v->i_type==P_SKIP) {
- /* Predicted (inter) mode, with motion vector */
- if (v->i_partition==D_16x16 || v->i_type==P_SKIP) {
- mv(x+8*zoom, y+8*zoom, v->mv[l][0][0], v->ref[l][0][0], zoom, col);
- }
- if (v->i_partition==D_16x8) {
- if (drawbox) disp_rect(0, x, y, x+16*zoom, y+8*zoom);
- mv(x+8*zoom, y+4*zoom, v->mv[l][0][0], v->ref[l][0][0], zoom, col);
- if (drawbox) disp_rect(0, x, y+8*zoom, x+16*zoom, y+16*zoom);
- mv(x+8*zoom, y+12*zoom, v->mv[l][2][0], v->ref[l][2][0], zoom, col);
- }
- if (v->i_partition==D_8x16) {
- if (drawbox) disp_rect(0, x, y, x+8*zoom, y+16*zoom);
- mv(x+4*zoom, y+8*zoom, v->mv[l][0][0], v->ref[l][0][0], zoom, col);
- if (drawbox) disp_rect(0, x+8*zoom, y, x+16*zoom, y+16*zoom);
- mv(x+12*zoom, y+8*zoom, v->mv[l][0][2], v->ref[l][0][2], zoom, col);
- }
- if (v->i_partition==D_8x8) {
- for (i=0; i<2; i++) for (j=0; j<2; j++) {
- int sp = v->i_sub_partition[i*2+j];
- const int x0 = x + j*8*zoom;
- const int y0 = y + i*8*zoom;
- l = x264_mb_partition_listX_table[0][sp] ? 0 : 1; /* FIXME: not tested if this works */
- if (IS_SUB8x8(sp)) {
- if (drawbox) disp_rect(0, x0, y0, x0+8*zoom, y0+8*zoom);
- mv(x0+4*zoom, y0+4*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
- }
- if (IS_SUB8x4(sp)) {
- if (drawbox) disp_rect(0, x0, y0, x0+8*zoom, y0+4*zoom);
- if (drawbox) disp_rect(0, x0, y0+4*zoom, x0+8*zoom, y0+8*zoom);
- mv(x0+4*zoom, y0+2*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
- mv(x0+4*zoom, y0+6*zoom, v->mv[l][2*i+1][2*j], v->ref[l][2*i+1][2*j], zoom, col);
- }
- if (IS_SUB4x8(sp)) {
- if (drawbox) disp_rect(0, x0, y0, x0+4*zoom, y0+8*zoom);
- if (drawbox) disp_rect(0, x0+4*zoom, y0, x0+8*zoom, y0+8*zoom);
- mv(x0+2*zoom, y0+4*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
- mv(x0+6*zoom, y0+4*zoom, v->mv[l][2*i][2*j+1], v->ref[l][2*i][2*j+1], zoom, col);
- }
- if (IS_SUB4x4(sp)) {
- if (drawbox) disp_rect(0, x0, y0, x0+4*zoom, y0+4*zoom);
- if (drawbox) disp_rect(0, x0+4*zoom, y0, x0+8*zoom, y0+4*zoom);
- if (drawbox) disp_rect(0, x0, y0+4*zoom, x0+4*zoom, y0+8*zoom);
- if (drawbox) disp_rect(0, x0+4*zoom, y0+4*zoom, x0+8*zoom, y0+8*zoom);
- mv(x0+2*zoom, y0+2*zoom, v->mv[l][2*i][2*j], v->ref[l][2*i][2*j], zoom, col);
- mv(x0+6*zoom, y0+2*zoom, v->mv[l][2*i][2*j+1], v->ref[l][2*i][2*j+1], zoom, col);
- mv(x0+2*zoom, y0+6*zoom, v->mv[l][2*i+1][2*j], v->ref[l][2*i+1][2*j], zoom, col);
- mv(x0+6*zoom, y0+6*zoom, v->mv[l][2*i+1][2*j+1], v->ref[l][2*i+1][2*j+1], zoom, col);
- }
- }
- }
- }
- if (IS_INTRA(v->i_type) || v->i_type==I_PCM) {
- /* Intra coded */
- if (v->i_type==I_16x16) {
- switch (v->i_intra16x16_pred_mode) {
- case I_PRED_16x16_V:
- disp_line(0, x+2*zoom, y+2*zoom, x+14*zoom, y+2*zoom);
- break;
- case I_PRED_16x16_H:
- disp_line(0, x+2*zoom, y+2*zoom, x+2*zoom, y+14*zoom);
- break;
- case I_PRED_16x16_DC:
- case I_PRED_16x16_DC_LEFT:
- case I_PRED_16x16_DC_TOP:
- case I_PRED_16x16_DC_128:
- disp_line(0, x+2*zoom, y+2*zoom, x+14*zoom, y+2*zoom);
- disp_line(0, x+2*zoom, y+2*zoom, x+2*zoom, y+14*zoom);
- break;
- case I_PRED_16x16_P:
- disp_line(0, x+2*zoom, y+2*zoom, x+8*zoom, y+8*zoom);
- break;
- }
- }
- if (v->i_type==I_4x4 || v->i_type==I_8x8) {
- const int di = v->i_type==I_8x8 ? 2 : 1;
- const int zoom2 = zoom * di;
- for (i=0; i<4; i+=di) for (j=0; j<4; j+=di) {
- const int x0 = x + j*4*zoom;
- const int y0 = y + i*4*zoom;
- if (drawbox) disp_rect(0, x0, y0, x0+4*zoom2, y0+4*zoom2);
- switch (v->intra4x4_pred_mode[i][j]) {
- case I_PRED_4x4_V: /* Vertical */
- disp_line(0, x0+0*zoom2, y0+1*zoom2, x0+4*zoom2, y0+1*zoom2);
- break;
- case I_PRED_4x4_H: /* Horizontal */
- disp_line(0, x0+1*zoom2, y0+0*zoom2, x0+1*zoom2, y0+4*zoom2);
- break;
- case I_PRED_4x4_DC: /* DC, average from top and left sides */
- case I_PRED_4x4_DC_LEFT:
- case I_PRED_4x4_DC_TOP:
- case I_PRED_4x4_DC_128:
- disp_line(0, x0+1*zoom2, y0+1*zoom2, x0+4*zoom2, y0+1*zoom2);
- disp_line(0, x0+1*zoom2, y0+1*zoom2, x0+1*zoom2, y0+4*zoom2);
- break;
- case I_PRED_4x4_DDL: /* Topright-bottomleft */
- disp_line(0, x0+0*zoom2, y0+0*zoom2, x0+4*zoom2, y0+4*zoom2);
- break;
- case I_PRED_4x4_DDR: /* Topleft-bottomright */
- disp_line(0, x0+0*zoom2, y0+4*zoom2, x0+4*zoom2, y0+0*zoom2);
- break;
- case I_PRED_4x4_VR: /* Mix of topleft-bottomright and vertical */
- disp_line(0, x0+0*zoom2, y0+2*zoom2, x0+4*zoom2, y0+1*zoom2);
- break;
- case I_PRED_4x4_HD: /* Mix of topleft-bottomright and horizontal */
- disp_line(0, x0+2*zoom2, y0+0*zoom2, x0+1*zoom2, y0+4*zoom2);
- break;
- case I_PRED_4x4_VL: /* Mix of topright-bottomleft and vertical */
- disp_line(0, x0+0*zoom2, y0+1*zoom2, x0+4*zoom2, y0+2*zoom2);
- break;
- case I_PRED_4x4_HU: /* Mix of topright-bottomleft and horizontal */
- disp_line(0, x0+1*zoom2, y0+0*zoom2, x0+2*zoom2, y0+4*zoom2);
- break;
- }
- }
- }
- }
- }
- disp_sync();
- if (waitkey) getchar();
- }
- /* }}} */
- //EOF