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improved EXIF errors reporting

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This commit is contained in:
Vadim 2024-02-13 19:08:28 +01:00
parent fac0d2a2c6
commit 6ba89d817d
1 changed files with 8 additions and 1 deletions
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9
lib/utils/ev_from_bytes.dart
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@ -10,7 +10,14 @@ Future<double> evFromImage(Uint8List bytes) async {
final apertureValueRatio = (tags["EXIF FNumber"]?.values as IfdRatios?)?.ratios.first; final apertureValueRatio = (tags["EXIF FNumber"]?.values as IfdRatios?)?.ratios.first;
final speedValueRatio = (tags["EXIF ExposureTime"]?.values as IfdRatios?)?.ratios.first; final speedValueRatio = (tags["EXIF ExposureTime"]?.values as IfdRatios?)?.ratios.first;
if (iso == null || apertureValueRatio == null || speedValueRatio == null) { if (iso == null || apertureValueRatio == null || speedValueRatio == null) {
throw FlutterError('Error parsing EXIF: ${tags.keys}'); throw ArgumentError(
'Error parsing EXIF: ${tags.keys.join(', ')}',
[
if (iso == null) 'EXIF ISOSpeedRatings',
if (apertureValueRatio == null) 'EXIF FNumber',
if (speedValueRatio == null) 'EXIF ExposureTime',
].join(', '),
);
} }
final aperture = apertureValueRatio.numerator / apertureValueRatio.denominator; final aperture = apertureValueRatio.numerator / apertureValueRatio.denominator;