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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
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12
configure
vendored
12
configure
vendored
@ -706,6 +706,8 @@ HAVE_LIST="
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getrusage
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imlib2
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inet_aton
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llrint
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lrint
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lrintf
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machine_ioctl_bt848_h
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machine_ioctl_meteor_h
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@ -714,6 +716,8 @@ HAVE_LIST="
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mkstemp
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mlib
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ppc64
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round
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roundf
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sdl
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sdl_video_size
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soundcard_h
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@ -1593,12 +1597,14 @@ done
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check_lib math.h sin -lm
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# test for lrintf in math.h
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check_exec <<EOF && enable lrintf || disable lrintf
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# test for C99 functions in math.h
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for func in llrint lrint lrintf round roundf; do
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check_exec <<EOF && enable $func || disable $func
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#define _ISOC9X_SOURCE 1
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#include <math.h>
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int main(void) { return (lrintf(3.999f) > 0)?0:1; }
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int main(void) { return ($func(3.999f) > 0)?0:1; }
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EOF
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done
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enabled_any libamr_nb libamr_wb && enable libamr
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@ -270,6 +270,20 @@ if((y)<(x)){\
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}\
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}
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#ifndef HAVE_LLRINT
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static av_always_inline long long llrint(double x)
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{
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return rint(x);
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}
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#endif /* HAVE_LLRINT */
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#ifndef HAVE_LRINT
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static av_always_inline long int lrint(double x)
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{
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return rint(x);
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}
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#endif /* HAVE_LRINT */
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#ifndef HAVE_LRINTF
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static av_always_inline long int lrintf(float x)
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{
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@ -277,4 +291,18 @@ static av_always_inline long int lrintf(float x)
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}
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#endif /* HAVE_LRINTF */
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#ifndef HAVE_ROUND
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static av_always_inline double round(double x)
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{
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return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
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}
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#endif /* HAVE_ROUND */
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#ifndef HAVE_ROUNDF
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static av_always_inline float roundf(float x)
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{
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return (x > 0) ? floor(x + 0.5) : ceil(x - 0.5);
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}
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#endif /* HAVE_ROUNDF */
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#endif /* FFMPEG_INTERNAL_H */
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