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| author | Diego Biurrun <diego@biurrun.de> | 2010-05-24 02:27:43 +0000 |
|---|---|---|
| committer | Diego Biurrun <diego@biurrun.de> | 2010-05-24 02:27:43 +0000 |
| commit | 0b374e40b1df87d21c6870e998849dd51027c637 (patch) | |
| tree | 25a754b1f6bc3629577349a91f3005ed69f8ad08 | |
| parent | a2a26d108b9ef0689493387c7058032e4245b74d (diff) | |
Convert NaN to 0/0 in av_d2q
This fixes aspect ratio calculation for encoding from files with 0/0 stored,
common with ogg/theora
backport r23280 by conrad
Originally committed as revision 23283 to svn://svn.ffmpeg.org/ffmpeg/branches/0.6
| -rw-r--r-- | libavutil/rational.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavutil/rational.c b/libavutil/rational.c index 3217b7daeb..3e8b885d49 100644 --- a/libavutil/rational.c +++ b/libavutil/rational.c @@ -98,6 +98,8 @@ AVRational av_d2q(double d, int max){ #define LOG2 0.69314718055994530941723212145817656807550013436025 int exponent= FFMAX( (int)(log(fabs(d) + 1e-20)/LOG2), 0); int64_t den= 1LL << (61 - exponent); + if (isnan(d)) + return (AVRational){0,0}; av_reduce(&a.num, &a.den, (int64_t)(d * den + 0.5), den, max); return a; |