[FFmpeg-devel] [PATCH 1/2] lavc/mpegvideo: use H263DSP dequant function

[Rémi Denis-Courmont]

---
 libavcodec/mpegvideo.c | 29 ++++-------------------------
 1 file changed, 4 insertions(+), 25 deletions(-)

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 7af823b8bd..0eb4a1a865 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -201,7 +201,7 @@ static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
                                   int16_t *block, int n, int qscale)
 {
-    int i, level, qmul, qadd;
+    int qmul, qadd;
     int nCoeffs;
 
     av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
@@ -219,23 +219,13 @@ static void dct_unquantize_h263_intra_c(MpegEncContext *s,
     else
         nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
 
-    for(i=1; i<=nCoeffs; i++) {
-        level = block[i];
-        if (level) {
-            if (level < 0) {
-                level = level * qmul - qadd;
-            } else {
-                level = level * qmul + qadd;
-            }
-            block[i] = level;
-        }
-    }
+    s->h263dsp.h263_dct_unquantize(block, 1, nCoeffs, qmul, qadd);
 }
 
 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
                                   int16_t *block, int n, int qscale)
 {
-    int i, level, qmul, qadd;
+    int qmul, qadd;
     int nCoeffs;
 
     av_assert2(s->block_last_index[n]>=0);
@@ -244,18 +234,7 @@ static void dct_unquantize_h263_inter_c(MpegEncContext *s,
     qmul = qscale << 1;
 
     nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
-
-    for(i=0; i<=nCoeffs; i++) {
-        level = block[i];
-        if (level) {
-            if (level < 0) {
-                level = level * qmul - qadd;
-            } else {
-                level = level * qmul + qadd;
-            }
-            block[i] = level;
-        }
-    }
+    s->h263dsp.h263_dct_unquantize(block, 0, nCoeffs, qmul, qadd);
 }
 
 
-- 
2.45.1

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