wavpack: cosmetics: K&R pretty-printing

[ffmpeg] / libavutil / bswap.h

diff --git a/libavutil/bswap.h b/libavutil/bswap.h
index f8c866aaebe767d9851553d68e3bfb4b3c106b65..8a350e1cd5c3af75c2a6d8cca247945c38f48aa9 100644 (file)
--- a/libavutil/bswap.h
+++ b/libavutil/bswap.h
@@ -1,20 +1,20 @@
 /*
  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -27,9 +27,13 @@
 #define AVUTIL_BSWAP_H
 
 #include <stdint.h>
-#include "config.h"
+#include "libavutil/avconfig.h"
 #include "attributes.h"
 
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
 #if   ARCH_ARM
 #   include "arm/bswap.h"
 #elif ARCH_AVR32
@@ -42,6 +46,8 @@
 #   include "x86/bswap.h"
 #endif
 
+#endif /* HAVE_AV_CONFIG_H */
+
 #define AV_BSWAP16C(x) (((x) << 8 & 0xff00)  | ((x) >> 8 & 0x00ff))
 #define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
 #define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32))
@@ -59,36 +65,21 @@ static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
 #ifndef av_bswap32
 static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
 {
-    x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
-    x= (x>>16) | (x<<16);
-    return x;
+    return AV_BSWAP32C(x);
 }
 #endif
 
 #ifndef av_bswap64
 static inline uint64_t av_const av_bswap64(uint64_t x)
 {
-#if 0
-    x= ((x<< 8)&0xFF00FF00FF00FF00ULL) | ((x>> 8)&0x00FF00FF00FF00FFULL);
-    x= ((x<<16)&0xFFFF0000FFFF0000ULL) | ((x>>16)&0x0000FFFF0000FFFFULL);
-    return (x>>32) | (x<<32);
-#else
-    union {
-        uint64_t ll;
-        uint32_t l[2];
-    } w, r;
-    w.ll = x;
-    r.l[0] = av_bswap32 (w.l[1]);
-    r.l[1] = av_bswap32 (w.l[0]);
-    return r.ll;
-#endif
+    return (uint64_t)av_bswap32(x) << 32 | av_bswap32(x >> 32);
 }
 #endif
 
 // be2ne ... big-endian to native-endian
 // le2ne ... little-endian to native-endian
 
-#if HAVE_BIGENDIAN
+#if AV_HAVE_BIGENDIAN
 #define av_be2ne16(x) (x)
 #define av_be2ne32(x) (x)
 #define av_be2ne64(x) (x)