X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fsimple_idct.c;h=3b2e73653819e541306c69b3604df29e7b9e232e;hb=f821ae8591add999ce717d932a80673fc29b00f6;hp=78b29c0fe3e03d8ebee94a3966729f5770e66862;hpb=2d62e06ff6a9f3dbd78136c1dc4a315a727c6f00;p=ffmpeg

diff --git a/libavcodec/simple_idct.c b/libavcodec/simple_idct.c
index 78b29c0fe3e..3b2e7365381 100644
--- a/libavcodec/simple_idct.c
+++ b/libavcodec/simple_idct.c
@@ -236,7 +236,7 @@ void ff_simple_idct44_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
     }
 }
 
-void ff_prores_idct(int16_t *block, const int16_t *qmat)
+void ff_prores_idct_10(int16_t *block, const int16_t *qmat)
 {
     int i;
 
@@ -251,3 +251,19 @@ void ff_prores_idct(int16_t *block, const int16_t *qmat)
         idctSparseCol_extrashift_10(block + i);
     }
 }
+
+void ff_prores_idct_12(int16_t *block, const int16_t *qmat)
+{
+    int i;
+
+    for (i = 0; i < 64; i++)
+        block[i] *= qmat[i];
+
+    for (i = 0; i < 8; i++)
+        idctRowCondDC_int16_12bit(block + i*8, 0);
+
+    for (i = 0; i < 8; i++) {
+        block[i] += 8192;
+        idctSparseCol_int16_12bit(block + i);
+    }
+}