Add some more verbose info regarding why the imprecise and slow floor(x+0.5) hack is used; helpful for future maintenance.
Signed-off-by: Ganesh Ajjanagadde <gajja...@gmail.com> --- libavutil/rational.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavutil/rational.c b/libavutil/rational.c index 3e841ad..22cf665 100644 --- a/libavutil/rational.c +++ b/libavutil/rational.c @@ -115,7 +115,8 @@ AVRational av_d2q(double d, int max) frexp(d, &exponent); exponent = FFMAX(exponent-1, 0); den = 1LL << (61 - exponent); - // (int64_t)rint() and llrint() do not work with gcc on ia64 and sparc64 + // (int64_t)rint() and llrint() do not work with gcc on ia64 and sparc64, + // see Ticket2713 for affected gcc/glibc versions av_reduce(&a.num, &a.den, floor(d * den + 0.5), den, max); if ((!a.num || !a.den) && d && max>0 && max<INT_MAX) av_reduce(&a.num, &a.den, floor(d * den + 0.5), den, INT_MAX); -- 2.7.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel