sh4: move dsputil prototypes to header file

Originally committed as revision 22312 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/sh4/dsputil_align.c

@@ -23,6 +23,7 @@
 
 #include "libavcodec/avcodec.h"
 #include "libavcodec/dsputil.h"
+#include "dsputil_sh4.h"
 
 
 #define         LP(p)           *(uint32_t*)(p)

libavcodec/sh4/dsputil_sh4.c

@@ -22,6 +22,7 @@
 
 #include "libavcodec/avcodec.h"
 #include "libavcodec/dsputil.h"
+#include "dsputil_sh4.h"
 #include "sh4.h"
 
 static void memzero_align8(void *dst,size_t size)
@@ -51,7 +52,6 @@ static void clear_blocks_sh4(DCTELEM *blocks)
         memzero_align8(blocks,sizeof(DCTELEM)*6*64);
 }
 
-void idct_sh4(DCTELEM *block);
 static void idct_put(uint8_t *dest, int line_size, DCTELEM *block)
 {
         int i;
@@ -89,8 +89,6 @@ static void idct_add(uint8_t *dest, int line_size, DCTELEM *block)
         }
 }
 
-void dsputil_init_align(DSPContext* c, AVCodecContext *avctx);
-
 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx)
 {
         const int idct_algo= avctx->idct_algo;

libavcodec/sh4/dsputil_sh4.h

@@ -0,0 +1,25 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_SH4_DSPUTIL_SH4_H
+#define AVCODEC_SH4_DSPUTIL_SH4_H
+
+void idct_sh4(DCTELEM *block);
+void dsputil_init_align(DSPContext* c, AVCodecContext *avctx);
+
+#endif

libavcodec/sh4/idct_sh4.c

@@ -21,6 +21,7 @@
  */
 
 #include "libavcodec/dsputil.h"
+#include "dsputil_sh4.h"
 #include "sh4.h"
 
 #define c1      1.38703984532214752434  /* sqrt(2)*cos(1*pi/16) */