Check for the presence of llrint(), lrint(), round() and roundf()

and provide simple replacements if they are unavailable.
patch by Michael Kostylev, mik niipt ru

Originally committed as revision 11326 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Michael Kostylev 17 years ago committed by Diego Biurrun
parent 52d086084e
commit a33cab3a9a
  1. 12
      configure
  2. 28
      libavutil/internal.h

12
configure vendored

@ -706,6 +706,8 @@ HAVE_LIST="
getrusage
imlib2
inet_aton
llrint
lrint
lrintf
machine_ioctl_bt848_h
machine_ioctl_meteor_h
@ -714,6 +716,8 @@ HAVE_LIST="
mkstemp
mlib
ppc64
round
roundf
sdl
sdl_video_size
soundcard_h
@ -1593,12 +1597,14 @@ done
check_lib math.h sin -lm
# test for lrintf in math.h
check_exec <<EOF && enable lrintf || disable lrintf
# test for C99 functions in math.h
for func in llrint lrint lrintf round roundf; do
check_exec <<EOF && enable $func || disable $func
#define _ISOC9X_SOURCE 1
#include <math.h>
int main(void) { return (lrintf(3.999f) > 0)?0:1; }
int main(void) { return ($func(3.999f) > 0)?0:1; }
EOF
done
enabled_any libamr_nb libamr_wb && enable libamr

@ -270,6 +270,20 @@ if((y)<(x)){\
}\
}
#ifndef HAVE_LLRINT
static av_always_inline long long llrint(double x)
{
return rint(x);
}
#endif /* HAVE_LLRINT */
#ifndef HAVE_LRINT
static av_always_inline long int lrint(double x)
{
return rint(x);
}
#endif /* HAVE_LRINT */
#ifndef HAVE_LRINTF
static av_always_inline long int lrintf(float x)
{
@ -277,4 +291,18 @@ static av_always_inline long int lrintf(float x)
}
#endif /* HAVE_LRINTF */
#ifndef HAVE_ROUND
static av_always_inline double round(double x)
{
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
}
#endif /* HAVE_ROUND */
#ifndef HAVE_ROUNDF
static av_always_inline float roundf(float x)
{
return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
}
#endif /* HAVE_ROUNDF */
#endif /* FFMPEG_INTERNAL_H */

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