diff options
Diffstat (limited to 'modules')
| -rw-r--r-- | modules/exif/lib/exif.php | 32 | ||||
| -rw-r--r-- | modules/exif/tests/Exif_Test.php | 2 |
2 files changed, 3 insertions, 31 deletions
diff --git a/modules/exif/lib/exif.php b/modules/exif/lib/exif.php index f335dad4..21b028f8 100644 --- a/modules/exif/lib/exif.php +++ b/modules/exif/lib/exif.php @@ -1007,36 +1007,8 @@ if ($result['ValidJpeg'] == 1) { //================================================================================================ function ConvertToFraction($v, &$n, &$d) { - $MaxTerms = 15; // Limit to prevent infinite loop - $MinDivisor = 0.000001; // Limit to prevent divide by zero - $MaxError = 0.00000001; // How close is enough - - $f = $v; // Initialize fraction being converted - - $n_un = 1; // Initialize fractions with 1/0, 0/1 - $d_un = 0; - $n_deux = 0; - $d_deux = 1; - - for ($i = 0; $i<$MaxTerms; $i++) - { - $a = floor($f); // Get next term - $f = $f - $a; // Get new divisor - $n = $n_un * $a + $n_deux; // Calculate new fraction - $d = $d_un * $a + $d_deux; - $n_deux = $n_un; // Save last two fractions - $d_deux = $d_un; - $n_un = $n; - $d_un = $d; - - if ($f < $MinDivisor) // Quit if dividing by zero - break; - - if (abs($v - $n / $d) < $MaxError) - break; - - $f = 1 / $f; // Take reciprocal - } + $n = 1; + $d = !empty($v) ? round(1.0 / $v) : 0; } //================================================================================================ diff --git a/modules/exif/tests/Exif_Test.php b/modules/exif/tests/Exif_Test.php index f94d0357..5c5a5cb1 100644 --- a/modules/exif/tests/Exif_Test.php +++ b/modules/exif/tests/Exif_Test.php @@ -31,7 +31,7 @@ class Exif_Test extends Unit_Test_Case { array("caption" => "Color Space", "value" => "Uncalibrated"), array("caption" => "Exposure Value", "value" => "4294.67 EV"), array("caption" => "Exposure Program", "value" => "Program"), - array("caption" => "Exposure Time", "value" => "833/49979 sec"), + array("caption" => "Exposure Time", "value" => "1/60 sec"), array("caption" => "Flash", "value" => "No Flash"), array("caption" => "Focal Length", "value" => "50 mm"), array("caption" => "ISO", "value" => "6553700"), |