From 91823a6efd6a036e76bca0b6bb7bc98de3a8cf8c Mon Sep 17 00:00:00 2001
From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Sun, 9 Dec 2007 05:54:59 +0000
Subject: [PATCH] Add 4x4 IDCT

Originally committed as revision 11198 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/simple_idct.c | 14 ++++++++++++++
 libavcodec/simple_idct.h |  1 +
 2 files changed, 15 insertions(+)

diff --git a/libavcodec/simple_idct.c b/libavcodec/simple_idct.c
index 50d785761a..7bf0836aa4 100644
--- a/libavcodec/simple_idct.c
+++ b/libavcodec/simple_idct.c
@@ -585,3 +585,17 @@ void ff_simple_idct48_add(uint8_t *dest, int line_size, DCTELEM *block)
     }
 }
 
+void ff_simple_idct44_add(uint8_t *dest, int line_size, DCTELEM *block)
+{
+    int i;
+
+    /* IDCT4 on each line */
+    for(i=0; i<4; i++) {
+        idct4row(block + i*8);
+    }
+
+    /* IDCT4 and store */
+    for(i=0; i<4; i++){
+        idct4col_add(dest + i, line_size, block + i);
+    }
+}
diff --git a/libavcodec/simple_idct.h b/libavcodec/simple_idct.h
index 806bde723f..6ae48a24e5 100644
--- a/libavcodec/simple_idct.h
+++ b/libavcodec/simple_idct.h
@@ -42,5 +42,6 @@ void ff_simple_idct248_put(uint8_t *dest, int line_size, DCTELEM *block);
 
 void ff_simple_idct84_add(uint8_t *dest, int line_size, DCTELEM *block);
 void ff_simple_idct48_add(uint8_t *dest, int line_size, DCTELEM *block);
+void ff_simple_idct44_add(uint8_t *dest, int line_size, DCTELEM *block);
 
 #endif /* FFMPEG_SIMPLE_IDCT_H */