[FFmpeg-devel] [PATCH 2/4] lavc/mpvenc: reorder code

["Rémi Denis-Courmont" <remi@remlab.net>]

No functional changes.
---
 libavcodec/mpegvideo_enc.c | 166 ++++++++++++++++++-------------------
 1 file changed, 83 insertions(+), 83 deletions(-)

diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 82bab43e14..dd92f0a3af 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -246,6 +246,89 @@ void ff_init_qscale_tab(MpegEncContext *s)
     }
 }
 
+int ff_dct_quantize_c(MpegEncContext *s,
+                        int16_t *block, int n,
+                        int qscale, int *overflow)
+{
+    int i, j, level, last_non_zero, q, start_i;
+    const int *qmat;
+    const uint8_t *scantable;
+    int bias;
+    int max=0;
+    unsigned int threshold1, threshold2;
+
+    s->fdsp.fdct(block);
+
+    if(s->dct_error_sum)
+        s->denoise_dct(s, block);
+
+    if (s->mb_intra) {
+        scantable= s->intra_scantable.scantable;
+        if (!s->h263_aic) {
+            if (n < 4)
+                q = s->y_dc_scale;
+            else
+                q = s->c_dc_scale;
+            q = q << 3;
+        } else
+            /* For AIC we skip quant/dequant of INTRADC */
+            q = 1 << 3;
+
+        /* note: block[0] is assumed to be positive */
+        block[0] = (block[0] + (q >> 1)) / q;
+        start_i = 1;
+        last_non_zero = 0;
+        qmat = n < 4 ? s->q_intra_matrix[qscale] : s->q_chroma_intra_matrix[qscale];
+        bias= s->intra_quant_bias*(1<<(QMAT_SHIFT - QUANT_BIAS_SHIFT));
+    } else {
+        scantable= s->inter_scantable.scantable;
+        start_i = 0;
+        last_non_zero = -1;
+        qmat = s->q_inter_matrix[qscale];
+        bias= s->inter_quant_bias*(1<<(QMAT_SHIFT - QUANT_BIAS_SHIFT));
+    }
+    threshold1= (1<<QMAT_SHIFT) - bias - 1;
+    threshold2= (threshold1<<1);
+    for(i=63;i>=start_i;i--) {
+        j = scantable[i];
+        level = block[j] * qmat[j];
+
+        if(((unsigned)(level+threshold1))>threshold2){
+            last_non_zero = i;
+            break;
+        }else{
+            block[j]=0;
+        }
+    }
+    for(i=start_i; i<=last_non_zero; i++) {
+        j = scantable[i];
+        level = block[j] * qmat[j];
+
+//        if(   bias+level >= (1<<QMAT_SHIFT)
+//           || bias-level >= (1<<QMAT_SHIFT)){
+        if(((unsigned)(level+threshold1))>threshold2){
+            if(level>0){
+                level= (bias + level)>>QMAT_SHIFT;
+                block[j]= level;
+            }else{
+                level= (bias - level)>>QMAT_SHIFT;
+                block[j]= -level;
+            }
+            max |=level;
+        }else{
+            block[j]=0;
+        }
+    }
+    *overflow= s->max_qcoeff < max; //overflow might have happened
+
+    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
+    if (s->idsp.perm_type != FF_IDCT_PERM_NONE)
+        ff_block_permute(block, s->idsp.idct_permutation,
+                      scantable, last_non_zero);
+
+    return last_non_zero;
+}
+
 static void update_duplicate_context_after_me(MpegEncContext *dst,
                                               const MpegEncContext *src)
 {
@@ -4565,86 +4648,3 @@ void ff_block_permute(int16_t *block, uint8_t *permutation,
         block[perm_j] = temp[j];
     }
 }
-
-int ff_dct_quantize_c(MpegEncContext *s,
-                        int16_t *block, int n,
-                        int qscale, int *overflow)
-{
-    int i, j, level, last_non_zero, q, start_i;
-    const int *qmat;
-    const uint8_t *scantable;
-    int bias;
-    int max=0;
-    unsigned int threshold1, threshold2;
-
-    s->fdsp.fdct(block);
-
-    if(s->dct_error_sum)
-        s->denoise_dct(s, block);
-
-    if (s->mb_intra) {
-        scantable= s->intra_scantable.scantable;
-        if (!s->h263_aic) {
-            if (n < 4)
-                q = s->y_dc_scale;
-            else
-                q = s->c_dc_scale;
-            q = q << 3;
-        } else
-            /* For AIC we skip quant/dequant of INTRADC */
-            q = 1 << 3;
-
-        /* note: block[0] is assumed to be positive */
-        block[0] = (block[0] + (q >> 1)) / q;
-        start_i = 1;
-        last_non_zero = 0;
-        qmat = n < 4 ? s->q_intra_matrix[qscale] : s->q_chroma_intra_matrix[qscale];
-        bias= s->intra_quant_bias*(1<<(QMAT_SHIFT - QUANT_BIAS_SHIFT));
-    } else {
-        scantable= s->inter_scantable.scantable;
-        start_i = 0;
-        last_non_zero = -1;
-        qmat = s->q_inter_matrix[qscale];
-        bias= s->inter_quant_bias*(1<<(QMAT_SHIFT - QUANT_BIAS_SHIFT));
-    }
-    threshold1= (1<<QMAT_SHIFT) - bias - 1;
-    threshold2= (threshold1<<1);
-    for(i=63;i>=start_i;i--) {
-        j = scantable[i];
-        level = block[j] * qmat[j];
-
-        if(((unsigned)(level+threshold1))>threshold2){
-            last_non_zero = i;
-            break;
-        }else{
-            block[j]=0;
-        }
-    }
-    for(i=start_i; i<=last_non_zero; i++) {
-        j = scantable[i];
-        level = block[j] * qmat[j];
-
-//        if(   bias+level >= (1<<QMAT_SHIFT)
-//           || bias-level >= (1<<QMAT_SHIFT)){
-        if(((unsigned)(level+threshold1))>threshold2){
-            if(level>0){
-                level= (bias + level)>>QMAT_SHIFT;
-                block[j]= level;
-            }else{
-                level= (bias - level)>>QMAT_SHIFT;
-                block[j]= -level;
-            }
-            max |=level;
-        }else{
-            block[j]=0;
-        }
-    }
-    *overflow= s->max_qcoeff < max; //overflow might have happened
-
-    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
-    if (s->idsp.perm_type != FF_IDCT_PERM_NONE)
-        ff_block_permute(block, s->idsp.idct_permutation,
-                      scantable, last_non_zero);
-
-    return last_non_zero;
-}
-- 
2.45.1

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