[FFmpeg-cvslog] r18569 - trunk/libavcodec/xan.c

[reimar]

Author: reimar
Date: Fri Apr 17 19:20:48 2009
New Revision: 18569

Log:
Use memcpy instead of the very inefficient bytecopy where both are correct
(i.e. no overlap of src and dst is possible).

Modified:
   trunk/libavcodec/xan.c

Modified: trunk/libavcodec/xan.c
==============================================================================
--- trunk/libavcodec/xan.c	Fri Apr 17 17:35:32 2009	(r18568)
+++ trunk/libavcodec/xan.c	Fri Apr 17 19:20:48 2009	(r18569)
@@ -148,7 +148,7 @@ static void xan_unpack(unsigned char *de
             size = opcode & 3;
             if (dest + size > dest_end)
                 return;
-            bytecopy(dest, src, size);  dest += size;  src += size;
+            memcpy(dest, src, size);  dest += size;  src += size;
 
             size = ((opcode & 0x1c) >> 2) + 3;
             if (dest + size > dest_end)
@@ -164,7 +164,7 @@ static void xan_unpack(unsigned char *de
             size = byte1 >> 6;
             if (dest + size > dest_end)
                 return;
-            bytecopy (dest, src, size);  dest += size;  src += size;
+            memcpy(dest, src, size);  dest += size;  src += size;
 
             size = (opcode & 0x3f) + 4;
             if (dest + size > dest_end)
@@ -181,7 +181,7 @@ static void xan_unpack(unsigned char *de
             size = opcode & 3;
             if (dest + size > dest_end)
                 return;
-            bytecopy (dest, src, size);  dest += size;  src += size;
+            memcpy(dest, src, size);  dest += size;  src += size;
 
             size = byte3 + 5 + ((opcode & 0xc) << 6);
             if (dest + size > dest_end)
@@ -198,12 +198,12 @@ static void xan_unpack(unsigned char *de
 
             if (dest + size > dest_end)
                 return;
-            bytecopy (dest, src, size);  dest += size;  src += size;
+            memcpy(dest, src, size);  dest += size;  src += size;
         }
     }
 
     size = opcode & 3;
-    bytecopy(dest, src, size);  dest += size;  src += size;
+    memcpy(dest, src, size);  dest += size;  src += size;
 }
 
 static inline void xan_wc3_output_pixel_run(XanContext *s,