* moved os_support.h into libavcodec

* added few more functions for os2

Originally committed as revision 1672 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/opts.c

@@ -11,10 +11,7 @@
  */
 
 #include "avcodec.h"
-
-#ifdef CONFIG_OS2
-#define strcasecmp(s1,s2) stricmp(s1,s2)
-#endif
+#include "os_support.h"
 
 const AVOption avoptions_common[] = {
     AVOPTION_CODEC_FLAG("bit_exact", "use only bit-exact stuff", flags, CODEC_FLAG_BITEXACT, 0),

libavcodec/os_support.h

@@ -0,0 +1,30 @@
+#ifndef _OS_SUPPORT_H
+#define _OS_SUPPORT_H
+
+/*
+ * miscellaneous OS support macros/function
+ *
+ * For now:
+ * usleep()
+ */
+
+#ifdef __MINGW32__
+#  include <windows.h>
+#  define usleep(t)    Sleep((t) / 1000)
+#endif
+
+#ifdef __BEOS__
+#  ifndef usleep
+#    include <OS.h>
+#    define usleep(t)  snooze((bigtime_t)(t))
+#  endif
+#endif
+
+#if defined(CONFIG_OS2)
+#include <stdlib.h>
+static inline usleep(unsigned int t) { return _sleep2((t) / 1000); }
+static inline float floatf(float x) { return floor(n); }
+static inline int strcasecmp(const char* s1, const char* s2) { return stricmp(s1,s2); }
+#endif
+
+#endif /* _OS_SUPPORT_H */

libavcodec/resample.c

@@ -23,10 +23,7 @@
  */
 
 #include "avcodec.h"
-
-#if defined (CONFIG_OS2)
-#define floorf(n) floor(n)
-#endif
+#include "os_support.h"
 
 typedef struct {
     /* fractional resampling */