[SCM] libav/experimental: mb type & qp vissualization

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 864119b6caa120c0dd9b9ad9a0ceea59fcbdd23f
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Sat Dec 13 01:33:52 2003 +0000

    mb type & qp vissualization
    
    Originally committed as revision 2603 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 13ab436..7794287 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1140,6 +1140,8 @@ typedef struct AVCodecContext {
 #define FF_DEBUG_ER        0x00000400
 #define FF_DEBUG_MMCO      0x00000800
 #define FF_DEBUG_BUGS      0x00001000
+#define FF_DEBUG_VIS_QP    0x00002000
+#define FF_DEBUG_VIS_MB_TYPE 0x00004000
     
     /**
      * error.
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 0259c4c..2f21486 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -1413,7 +1413,7 @@ void ff_print_debug_info(MpegEncContext *s, Picture *pict){
         }
     }
 
-    if((s->avctx->debug&FF_DEBUG_VIS_MV) && pict->motion_val){
+    if(s->avctx->debug&(FF_DEBUG_VIS_MV|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)){
         const int shift= 1 + s->quarter_sample;
         int mb_y;
         uint8_t *ptr= pict->data[0];
@@ -1423,7 +1423,8 @@ void ff_print_debug_info(MpegEncContext *s, Picture *pict){
             int mb_x;
             for(mb_x=0; mb_x<s->mb_width; mb_x++){
                 const int mb_index= mb_x + mb_y*s->mb_stride;
-                if(IS_8X8(pict->mb_type[mb_index])){
+                if((s->avctx->debug&FF_DEBUG_VIS_MV) && pict->motion_val){
+                  if(IS_8X8(pict->mb_type[mb_index])){
                     int i;
                     for(i=0; i<4; i++){
                         int sx= mb_x*16 + 4 + 8*(i&1);
@@ -1433,7 +1434,7 @@ void ff_print_debug_info(MpegEncContext *s, Picture *pict){
                         int my= (pict->motion_val[0][xy][1]>>shift) + sy;
                         draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
                     }
-                }else if(IS_16X8(pict->mb_type[mb_index])){
+                  }else if(IS_16X8(pict->mb_type[mb_index])){
                     int i;
                     for(i=0; i<2; i++){
                         int sx=mb_x*16 + 8;
@@ -1443,13 +1444,78 @@ void ff_print_debug_info(MpegEncContext *s, Picture *pict){
                         int my=(pict->motion_val[0][xy][1]>>shift) + sy;
                         draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
                     }
-                }else{
+                  }else{
                     int sx= mb_x*16 + 8;
                     int sy= mb_y*16 + 8;
                     int xy= 1 + mb_x*2 + (mb_y*2 + 1)*(s->mb_width*2 + 2);
                     int mx= (pict->motion_val[0][xy][0]>>shift) + sx;
                     int my= (pict->motion_val[0][xy][1]>>shift) + sy;
                     draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
+                  }
+                }
+                if((s->avctx->debug&FF_DEBUG_VIS_QP) && pict->motion_val){
+                    uint64_t c= (pict->qscale_table[mb_index]*128/31) * 0x0101010101010101ULL;
+                    int y;
+                    for(y=0; y<8; y++){
+                        *(uint64_t*)(pict->data[1] + 8*mb_x + (8*mb_y + y)*pict->linesize[1])= c;
+                        *(uint64_t*)(pict->data[2] + 8*mb_x + (8*mb_y + y)*pict->linesize[2])= c;
+                    }
+                }
+                if((s->avctx->debug&FF_DEBUG_VIS_MB_TYPE) && pict->motion_val){
+                    int mb_type= pict->mb_type[mb_index];
+                    uint64_t u,v;
+                    int y;
+#define COLOR(theta, r)\
+u= (int)(128 + r*cos(theta*3.141592/180));\
+v= (int)(128 + r*sin(theta*3.141592/180));
+
+                    
+                    u=v=128;
+                    if(IS_PCM(mb_type)){
+                        COLOR(120,48)
+                    }else if((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) || IS_INTRA16x16(mb_type)){
+                        COLOR(30,48)
+                    }else if(IS_INTRA4x4(mb_type)){
+                        COLOR(90,48)
+                    }else if(IS_DIRECT(mb_type) && IS_SKIP(mb_type)){
+//                        COLOR(120,48)
+                    }else if(IS_DIRECT(mb_type)){
+                        COLOR(150,48)
+                    }else if(IS_GMC(mb_type) && IS_SKIP(mb_type)){
+                        COLOR(170,48)
+                    }else if(IS_GMC(mb_type)){
+                        COLOR(190,48)
+                    }else if(IS_SKIP(mb_type)){
+//                        COLOR(180,48)
+                    }else if(!USES_LIST(mb_type, 1)){
+                        COLOR(240,48)
+                    }else if(!USES_LIST(mb_type, 0)){
+                        COLOR(0,48)
+                    }else{
+                        assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
+                        COLOR(300,48)
+                    }
+
+                    u*= 0x0101010101010101ULL;
+                    v*= 0x0101010101010101ULL;
+                    for(y=0; y<8; y++){
+                        *(uint64_t*)(pict->data[1] + 8*mb_x + (8*mb_y + y)*pict->linesize[1])= u;
+                        *(uint64_t*)(pict->data[2] + 8*mb_x + (8*mb_y + y)*pict->linesize[2])= v;
+                    }
+
+                    //segmentation
+                    if(IS_8X8(mb_type) || IS_16X8(mb_type)){
+                        *(uint64_t*)(pict->data[0] + 16*mb_x + 0 + (16*mb_y + 8)*pict->linesize[0])^= 0x8080808080808080ULL;
+                        *(uint64_t*)(pict->data[0] + 16*mb_x + 8 + (16*mb_y + 8)*pict->linesize[0])^= 0x8080808080808080ULL;
+                    }
+                    if(IS_8X8(mb_type) || IS_8X16(mb_type)){
+                        for(y=0; y<16; y++)
+                            pict->data[0][16*mb_x + 8 + (16*mb_y + y)*pict->linesize[0]]^= 0x80;
+                    }
+                        
+                    if(IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264){
+                        // hmm
+                    }
                 }
                 s->mbskip_table[mb_index]=0;
             }

-- 
Libav/FFmpeg packaging