snowenc: remove disabled QUANTIZE2 code

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/snowenc.c

@@ -37,123 +37,6 @@
 #undef NDEBUG
 #include <assert.h>
 
-#define QUANTIZE2 0
-
-#if QUANTIZE2==1
-#define Q2_STEP 8
-
-static void find_sse(SnowContext *s, Plane *p, int *score, int score_stride, IDWTELEM *r0, IDWTELEM *r1, int level, int orientation){
-    SubBand *b= &p->band[level][orientation];
-    int x, y;
-    int xo=0;
-    int yo=0;
-    int step= 1 << (s->spatial_decomposition_count - level);
-
-    if(orientation&1)
-        xo= step>>1;
-    if(orientation&2)
-        yo= step>>1;
-
-    //FIXME bias for nonzero ?
-    //FIXME optimize
-    memset(score, 0, sizeof(*score)*score_stride*((p->height + Q2_STEP-1)/Q2_STEP));
-    for(y=0; y<p->height; y++){
-        for(x=0; x<p->width; x++){
-            int sx= (x-xo + step/2) / step / Q2_STEP;
-            int sy= (y-yo + step/2) / step / Q2_STEP;
-            int v= r0[x + y*p->width] - r1[x + y*p->width];
-            av_assert2(sx>=0 && sy>=0 && sx < score_stride);
-            v= ((v+8)>>4)<<4;
-            score[sx + sy*score_stride] += v*v;
-            av_assert2(score[sx + sy*score_stride] >= 0);
-        }
-    }
-}
-
-static void dequantize_all(SnowContext *s, Plane *p, IDWTELEM *buffer, int width, int height){
-    int level, orientation;
-
-    for(level=0; level<s->spatial_decomposition_count; level++){
-        for(orientation=level ? 1 : 0; orientation<4; orientation++){
-            SubBand *b= &p->band[level][orientation];
-            IDWTELEM *dst= buffer + (b->ibuf - s->spatial_idwt_buffer);
-
-            dequantize(s, b, dst, b->stride);
-        }
-    }
-}
-
-static void dwt_quantize(SnowContext *s, Plane *p, DWTELEM *buffer, int width, int height, int stride, int type){
-    int level, orientation, ys, xs, x, y, pass;
-    IDWTELEM best_dequant[height * stride];
-    IDWTELEM idwt2_buffer[height * stride];
-    const int score_stride= (width + 10)/Q2_STEP;
-    int best_score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size
-    int score[(width + 10)/Q2_STEP * (height + 10)/Q2_STEP]; //FIXME size
-    int threshold= (s->m.lambda * s->m.lambda) >> 6;
-
-    //FIXME pass the copy cleanly ?
-
-//    memcpy(dwt_buffer, buffer, height * stride * sizeof(DWTELEM));
-    ff_spatial_dwt(buffer, s->temp_dwt_buffer, width, height, stride, type, s->spatial_decomposition_count);
-
-    for(level=0; level<s->spatial_decomposition_count; level++){
-        for(orientation=level ? 1 : 0; orientation<4; orientation++){
-            SubBand *b= &p->band[level][orientation];
-            IDWTELEM *dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer);
-             DWTELEM *src=       buffer + (b-> buf - s->spatial_dwt_buffer);
-            assert(src == b->buf); // code does not depend on this but it is true currently
-
-            quantize(s, b, dst, src, b->stride, s->qbias);
-        }
-    }
-    for(pass=0; pass<1; pass++){
-        if(s->qbias == 0) //keyframe
-            continue;
-        for(level=0; level<s->spatial_decomposition_count; level++){
-            for(orientation=level ? 1 : 0; orientation<4; orientation++){
-                SubBand *b= &p->band[level][orientation];
-                IDWTELEM *dst= idwt2_buffer + (b->ibuf - s->spatial_idwt_buffer);
-                IDWTELEM *best_dst= best_dequant + (b->ibuf - s->spatial_idwt_buffer);
-
-                for(ys= 0; ys<Q2_STEP; ys++){
-                    for(xs= 0; xs<Q2_STEP; xs++){
-                        memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM));
-                        dequantize_all(s, p, idwt2_buffer, width, height);
-                        ff_spatial_idwt(idwt2_buffer, s->temp_idwt_buffer, width, height, stride, type, s->spatial_decomposition_count);
-                        find_sse(s, p, best_score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation);
-                        memcpy(idwt2_buffer, best_dequant, height * stride * sizeof(IDWTELEM));
-                        for(y=ys; y<b->height; y+= Q2_STEP){
-                            for(x=xs; x<b->width; x+= Q2_STEP){
-                                if(dst[x + y*b->stride]<0) dst[x + y*b->stride]++;
-                                if(dst[x + y*b->stride]>0) dst[x + y*b->stride]--;
-                                //FIXME try more than just --
-                            }
-                        }
-                        dequantize_all(s, p, idwt2_buffer, width, height);
-                        ff_spatial_idwt(idwt2_buffer, s->temp_idwt_buffer, width, height, stride, type, s->spatial_decomposition_count);
-                        find_sse(s, p, score, score_stride, idwt2_buffer, s->spatial_idwt_buffer, level, orientation);
-                        for(y=ys; y<b->height; y+= Q2_STEP){
-                            for(x=xs; x<b->width; x+= Q2_STEP){
-                                int score_idx= x/Q2_STEP + (y/Q2_STEP)*score_stride;
-                                if(score[score_idx] <= best_score[score_idx] + threshold){
-                                    best_score[score_idx]= score[score_idx];
-                                    if(best_dst[x + y*b->stride]<0) best_dst[x + y*b->stride]++;
-                                    if(best_dst[x + y*b->stride]>0) best_dst[x + y*b->stride]--;
-                                    //FIXME copy instead
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-    }
-    memcpy(s->spatial_idwt_buffer, best_dequant, height * stride * sizeof(IDWTELEM)); //FIXME work with that directly instead of copy at the end
-}
-
-#endif /* QUANTIZE2==1 */
-
 static av_cold int encode_init(AVCodecContext *avctx)
 {
     SnowContext *s = avctx->priv_data;
@@ -1842,10 +1725,7 @@ redo_frame:
                 }
             }
 
-            /*  if(QUANTIZE2)
-                dwt_quantize(s, p, s->spatial_dwt_buffer, w, h, w, s->spatial_decomposition_type);
-            else*/
-                ff_spatial_dwt(s->spatial_dwt_buffer, s->temp_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
+            ff_spatial_dwt(s->spatial_dwt_buffer, s->temp_dwt_buffer, w, h, w, s->spatial_decomposition_type, s->spatial_decomposition_count);
 
             if(s->pass1_rc && plane_index==0){
                 int delta_qlog = ratecontrol_1pass(s, pic);
@@ -1865,8 +1745,7 @@ redo_frame:
                 for(orientation=level ? 1 : 0; orientation<4; orientation++){
                     SubBand *b= &p->band[level][orientation];
 
-                    if(!QUANTIZE2)
-                        quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
+                    quantize(s, b, b->ibuf, b->buf, b->stride, s->qbias);
                     if(orientation==0)
                         decorrelate(s, b, b->ibuf, b->stride, pic->pict_type == AV_PICTURE_TYPE_P, 0);
                     if (!s->no_bitstream)