semicolin
/
totte
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

shorten a bunch of exif-parsing calls

main
Colin McMillen 9 months ago
parent
75ad5bd478
commit
f612d0dc42
2 changed files with 41 additions and 58 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 91
      Photo.cs
  2. 8
      Program.cs

91
Photo.cs
View File

@ -22,73 +22,66 @@ public struct GpsInfo {
public Rational Altitude;
public byte AltitudeRef;
// GpsStatus? DateStamp and TimeStamp?
public static GpsInfo? ParseExif(ExifProfile exif) {
GpsInfo gps;
IExifValue<byte[]>? versionId;
IExifValue<string>? status;
IExifValue<string>? datestamp;
IExifValue<Rational[]>? timestamp;
IExifValue<Rational[]>? latitude;
IExifValue<string>? latitudeRef;
IExifValue<Rational[]>? longitude;
IExifValue<string>? longitudeRef;
IExifValue<Rational>? altitude;
IExifValue<byte>? altitudeRef;
if (!exif.TryGetValue(ExifTag.GPSVersionID, out versionId)) {
if (!Parse(exif, ExifTag.GPSVersionID, out gps.VersionId)) {
return null;
}
gps.VersionId = versionId.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSStatus, out status)) {
if (!Parse(exif, ExifTag.GPSStatus, out gps.Status)) {
return null;
}
gps.Status = status.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSDateStamp, out datestamp)) {
if (!Parse(exif, ExifTag.GPSDateStamp, out gps.Datestamp)) {
return null;
}
gps.Datestamp = datestamp.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSTimestamp, out timestamp)) {
if (!Parse(exif, ExifTag.GPSTimestamp, out gps.Timestamp)) {
return null;
}
gps.Timestamp = timestamp.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSLatitude, out latitude)) {
if (!Parse(exif, ExifTag.GPSLatitude, out gps.Latitude)) {
return null;
}
gps.Latitude = latitude.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSLatitudeRef, out latitudeRef)) {
if (!Parse(exif, ExifTag.GPSLatitudeRef, out gps.LatitudeRef)) {
return null;
}
gps.LatitudeRef = latitudeRef.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSLongitude, out longitude)) {
if (!Parse(exif, ExifTag.GPSLongitude, out gps.Longitude)) {
return null;
}
gps.Longitude = longitude.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSLongitudeRef, out longitudeRef)) {
if (!Parse(exif, ExifTag.GPSLongitudeRef, out gps.LongitudeRef)) {
return null;
}
gps.LongitudeRef = longitudeRef.Value ?? throw new NullReferenceException();
if (!exif.TryGetValue(ExifTag.GPSAltitude, out altitude)) {
if (!Parse(exif, ExifTag.GPSAltitude, out gps.Altitude)) {
return null;
}
gps.Altitude = altitude.Value;
if (!exif.TryGetValue(ExifTag.GPSAltitudeRef, out altitudeRef)) {
if (!Parse(exif, ExifTag.GPSAltitudeRef, out gps.AltitudeRef)) {
return null;
}
gps.AltitudeRef = altitudeRef.Value;
return gps;
}
// FIXME: use this Parse() function in Photo.ParseExif() as well?
private static bool Parse<T>(ExifProfile exif, ExifTag<T> tag, out T result) {
IExifValue<T>? data;
if (exif.TryGetValue(tag, out data)) {
if (data != null && data.Value != null) {
result = data.Value;
return true;
}
}
#pragma warning disable CS8601
result = default(T);
#pragma warning restore CS8601
return false;
}
}
public class Photo {
@ -284,30 +277,25 @@ public class Photo {
return;
}
IExifValue<ushort>? orientation;
if (exifs.TryGetValue(ExifTag.Orientation, out orientation)) {
if (exifs.TryGetValue(ExifTag.Orientation, out var orientation)) {
Orientation = orientation.Value;
}
IExifValue<string>? model;
if (exifs.TryGetValue(ExifTag.Model, out model)) {
if (exifs.TryGetValue(ExifTag.Model, out var model)) {
CameraModel = model.Value ?? "";
}
IExifValue<string>? lensModel;
if (exifs.TryGetValue(ExifTag.LensModel, out lensModel)) {
if (exifs.TryGetValue(ExifTag.LensModel, out var lensModel)) {
LensModel = lensModel.Value ?? "";
ShortLensModel = GetShortLensModel(LensModel);
}
IExifValue<Rational>? focalLength;
if (exifs.TryGetValue(ExifTag.FocalLength, out focalLength)) {
if (exifs.TryGetValue(ExifTag.FocalLength, out var focalLength)) {
Rational r = focalLength.Value;
FocalLength = $"{r.Numerator / r.Denominator}mm";
}
IExifValue<Rational>? fNumber;
if (exifs.TryGetValue(ExifTag.FNumber, out fNumber)) {
if (exifs.TryGetValue(ExifTag.FNumber, out var fNumber)) {
Rational r = fNumber.Value;
if (r.Numerator % r.Denominator == 0) {
FNumber = $"f/{r.Numerator / r.Denominator}";
@ -317,9 +305,8 @@ public class Photo {
}
}
// FIXME: could also show ExposureBiasValue, ExposureMode, ExposureProgram?
IExifValue<Rational>? exposureTime;
if (exifs.TryGetValue(ExifTag.ExposureTime, out exposureTime)) {
// FIXME: could also show ExposureProgram.
if (exifs.TryGetValue(ExifTag.ExposureTime, out var exposureTime)) {
Rational r = exposureTime.Value;
if (r.Numerator == 1) {
ExposureTime = $"1/{r.Denominator}";
@ -335,8 +322,7 @@ public class Photo {
}
}
IExifValue<ushort[]>? isoSpeed;
if (exifs.TryGetValue(ExifTag.ISOSpeedRatings, out isoSpeed)) {
if (exifs.TryGetValue(ExifTag.ISOSpeedRatings, out var isoSpeed)) {
ushort[]? iso = isoSpeed.Value;
if (iso != null) {
if (iso.Length != 1) {
@ -349,8 +335,7 @@ public class Photo {
}
// FIXME: I think the iPhone stores time in UTC but other cameras report it in local time.
IExifValue<string>? dateTimeOriginal;
if (exifs.TryGetValue(ExifTag.DateTimeOriginal, out dateTimeOriginal)) {
if (exifs.TryGetValue(ExifTag.DateTimeOriginal, out var dateTimeOriginal)) {
DateTime date;
if (DateTime.TryParseExact(
dateTimeOriginal.Value ?? "",
@ -364,15 +349,13 @@ public class Photo {
}
}
IExifValue<string>? subsecTimeOriginal;
if (exifs.TryGetValue(ExifTag.SubsecTimeOriginal, out subsecTimeOriginal)) {
if (exifs.TryGetValue(ExifTag.SubsecTimeOriginal, out var subsecTimeOriginal)) {
double fractionalSeconds;
Double.TryParse("0." + subsecTimeOriginal.Value, out fractionalSeconds);
DateTimeOriginal = DateTimeOriginal.AddSeconds(fractionalSeconds);
}
IExifValue<SignedRational>? exposureBiasValue;
if (exifs.TryGetValue(ExifTag.ExposureBiasValue, out exposureBiasValue)) {
if (exifs.TryGetValue(ExifTag.ExposureBiasValue, out var exposureBiasValue)) {
SignedRational r = exposureBiasValue.Value;
ExposureBiasValue = r.ToString();
if (r.Numerator >= 0) {
@ -426,7 +409,7 @@ public class Photo {
public string Description() {
string date = DateTimeOriginal.ToString("yyyy-MM-dd HH:mm:ss.ff");
return String.Format(
"{0,6} {1,-5} {2,-7} {3,-10} {9,-4} {7,4}x{8,-4} {4} {5,-20} {6}",
"{0,6} {1,-5} {2,-7} {3,-10} EV {9,-4} {7,4}x{8,-4} {4} {5,-20} {6}",
FocalLength, FNumber, ExposureTime, IsoSpeed, date, ShortLensModel, Filename, Size.X, Size.Y, ExposureBiasValue);
}
}

8
Program.cs
View File

@ -386,8 +386,8 @@ public class Game : GameWindow {
geometry = new UiGeometry(nwSettings.Size, STAR_FILLED.Size.X);
}
private static string outputRoot = @"c:\users\colin\desktop\totte-output";
// private static string outputRoot = @"c:\users\colin\pictures\photos";
// private static string outputRoot = @"c:\users\colin\desktop\totte-output";
private static string outputRoot = @"c:\users\colin\pictures\photos";
private static Texture TEXTURE_WHITE = new(new Image<Rgba32>(1, 1, new Rgba32(255, 255, 255)));
private static Texture TEXTURE_BLACK = new(new Image<Rgba32>(1, 1, new Rgba32(0, 0, 0)));
@ -696,8 +696,8 @@ public class Game : GameWindow {
// string[] files = Directory.GetFiles(@"c:\users\colin\pictures\photos\2023\07\14\");
// string[] files = Directory.GetFiles(@"c:\users\colin\pictures\photos\2023\07\23\");
// string[] files = Directory.GetFiles(@"G:\DCIM\100EOSR6\");
// string[] files = Directory.GetFiles(@"c:\users\colin\desktop\totte-output\2023\08\29");
string[] files = Directory.GetFiles(@"c:\users\colin\desktop\import");
string[] files = Directory.GetFiles(@"c:\users\colin\desktop\totte-output\2023\08\29");
// string[] files = Directory.GetFiles(@"c:\users\colin\desktop\import");
// string[] files = Directory.GetFiles(@"C:\Users\colin\Pictures\photos\2018\06\23");
// string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\Germany all\104D7000");
// string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\many-birds\");

Write Preview
Loading…
Cancel
Save