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3a09b32356
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3a09b32356 | ||
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a1ce17d675 |
2 changed files with 9 additions and 2 deletions
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@ -10,7 +10,14 @@ Future<double> evFromImage(Uint8List bytes) async {
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final apertureValueRatio = (tags["EXIF FNumber"]?.values as IfdRatios?)?.ratios.first;
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final apertureValueRatio = (tags["EXIF FNumber"]?.values as IfdRatios?)?.ratios.first;
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final speedValueRatio = (tags["EXIF ExposureTime"]?.values as IfdRatios?)?.ratios.first;
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final speedValueRatio = (tags["EXIF ExposureTime"]?.values as IfdRatios?)?.ratios.first;
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if (iso == null || apertureValueRatio == null || speedValueRatio == null) {
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if (iso == null || apertureValueRatio == null || speedValueRatio == null) {
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throw FlutterError('Error parsing EXIF: ${tags.keys}');
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throw ArgumentError(
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'Error parsing EXIF: ${tags.keys.join(', ')}',
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[
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if (iso == null) 'EXIF ISOSpeedRatings',
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if (apertureValueRatio == null) 'EXIF FNumber',
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if (speedValueRatio == null) 'EXIF ExposureTime',
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].join(', '),
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);
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}
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}
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final aperture = apertureValueRatio.numerator / apertureValueRatio.denominator;
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final aperture = apertureValueRatio.numerator / apertureValueRatio.denominator;
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@ -17,7 +17,7 @@ void main() {
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'no EXIF',
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'no EXIF',
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() {
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() {
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final bytes = File('assets/launcher_icon_dev_512.png').readAsBytesSync();
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final bytes = File('assets/launcher_icon_dev_512.png').readAsBytesSync();
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expectLater(evFromImage(bytes), throwsFlutterError);
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expectLater(evFromImage(bytes), throwsArgumentError);
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},
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},
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);
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);
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});
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});
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