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vdpau: Check for log2 and only use it if it's available

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This commit is contained in:
Sebastian Dröge 2010-06-29 11:21:06 +02:00
parent c6def75fc4
commit dfeaa7709b
2 changed files with 13 additions and 0 deletions
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5
configure.ac
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@ -167,6 +167,11 @@ dnl *** checks for compiler characteristics ***
dnl *** checks for library functions *** dnl *** checks for library functions ***
AC_CHECK_FUNCS([gmtime_r]) AC_CHECK_FUNCS([gmtime_r])
LIBS_SAVE=$LIBS
LIBS="$LIBS $LIBM"
AC_CHECK_FUNCS([log2])
LIBS=$LIBS_SAVE
dnl *** checks for headers *** dnl *** checks for headers ***
AC_CHECK_HEADERS([sys/utsname.h]) AC_CHECK_HEADERS([sys/utsname.h])

8
sys/vdpau/h264/gsth264parser.c
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@ -18,9 +18,17 @@
* Boston, MA 02111-1307, USA. * Boston, MA 02111-1307, USA.
*/ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h> #include <string.h>
#include <math.h> #include <math.h>
#ifndef HAVE_LOG2
#define log2(x) (log(x)/log(2))
#endif
#include "gstnalreader.h" #include "gstnalreader.h"
#include "gsth264parser.h" #include "gsth264parser.h"