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pull ParseExif() into a standalone function

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This commit is contained in:
Colin McMillen 2023-07-25 16:43:11 -04:00
parent e6d3f197ea
commit 9796827f96
1 changed files with 95 additions and 78 deletions
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173
Program.cs
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@ -154,6 +154,7 @@ public class Photo {
public string ExposureTime = "<unk>";
public string IsoSpeed = "<unk>";
public int Rating = 0;
public ushort Orientation = 1;
private Texture texture;
private Texture placeholder;
@ -170,85 +171,10 @@ public class Photo {
// edit the image due to rotation (etc) and don't want to try generating
// a texture for it until that's already happened.
Image<Rgba32> tmpImage = await Image.LoadAsync<Rgba32>(File);
ParseExif(tmpImage.Metadata.ExifProfile);
TryParseRating(tmpImage.Metadata.XmpProfile, out Rating);
ExifProfile? exifs = tmpImage.Metadata.ExifProfile;
if (exifs != null) {
// FIXME: when we write out images, we'll want to correct the Exif Orientation to 1.
// FIXME: handle date shot / edited (and sort by shot date?)
// FIXME: PixelXDimension & PixelYDimension hold the image geometry in Exif.
IExifValue<ushort>? orientation;
if (exifs.TryGetValue(ExifTag.Orientation, out orientation)) {
Util.RotateImageFromExif(tmpImage, orientation.Value);
}
IExifValue<string>? model;
if (exifs.TryGetValue(ExifTag.Model, out model)) {
CameraModel = model.Value ?? "";
}
IExifValue<string>? lensModel;
if (exifs.TryGetValue(ExifTag.LensModel, out lensModel)) {
LensModel = lensModel.Value ?? "";
}
IExifValue<Rational>? focalLength;
if (exifs.TryGetValue(ExifTag.FocalLength, out focalLength)) {
Rational r = focalLength.Value;
FocalLength = $"{r.Numerator / r.Denominator}mm";
}
IExifValue<Rational>? fNumber;
if (exifs.TryGetValue(ExifTag.FNumber, out fNumber)) {
Rational r = fNumber.Value;
if (r.Denominator == 1) {
FNumber = $"f/{r.Numerator}";
} else {
if (r.Denominator != 10) {
Console.WriteLine($"*** WARNING: unexpected FNumber denominator: {r.Denominator}");
}
if (r.Numerator % 10 == 0) {
FNumber = $"f/{r.Numerator / 10}";
} else {
FNumber= $"f/{r.Numerator / 10}.{r.Numerator % 10}";
}
}
}
IExifValue<Rational>? exposureTime;
if (exifs.TryGetValue(ExifTag.ExposureTime, out exposureTime)) {
Rational r = exposureTime.Value;
if (r.Numerator == 1) {
ExposureTime = $"1/{r.Denominator}";
} else if (r.Numerator == 10) {
ExposureTime = $"1/{r.Denominator / 10}";
} else if (r.Denominator == 1) {
ExposureTime = $"{r.Numerator }\"";
} else if (r.Denominator == 10) {
ExposureTime = $"{r.Numerator / 10}.{r.Numerator % 10}\"";
} else {
Console.WriteLine($"*** WARNING: unexpected ExposureTime: {r.Numerator}/{r.Denominator}");
ExposureTime = r.ToString();
}
}
IExifValue<ushort[]>? isoSpeed;
if (exifs.TryGetValue(ExifTag.ISOSpeedRatings, out isoSpeed)) {
ushort[]? iso = isoSpeed.Value;
if (iso != null) {
if (iso.Length != 1) {
Console.WriteLine($"*** WARNING: unexpected ISOSpeedRatings array length: {iso.Length}");
}
if (iso.Length >= 1) {
IsoSpeed = $"ISO {iso[0]}";
}
}
}
// foreach (IExifValue exif in exifs.Values) {
// Console.WriteLine(exif.Tag.ToString() + " " + exif.GetValue().ToString());
// }
image = tmpImage;
}
Util.RotateImageFromExif(tmpImage, Orientation);
image = tmpImage;
}
private bool TryParseRating(XmpProfile? xmp, out int rating) {
@ -274,6 +200,87 @@ public class Photo {
return false;
}
private void ParseExif(ExifProfile? exifs) {
if (exifs == null) {
return;
}
// FIXME: when we write out images, we'll want to correct the Exif Orientation to 1.
// FIXME: handle date shot / edited (and sort by shot date?)
// FIXME: PixelXDimension & PixelYDimension hold the image geometry in Exif.
IExifValue<ushort>? orientation;
if (exifs.TryGetValue(ExifTag.Orientation, out orientation)) {
Orientation = orientation.Value;
}
IExifValue<string>? model;
if (exifs.TryGetValue(ExifTag.Model, out model)) {
CameraModel = model.Value ?? "";
}
IExifValue<string>? lensModel;
if (exifs.TryGetValue(ExifTag.LensModel, out lensModel)) {
LensModel = lensModel.Value ?? "";
}
IExifValue<Rational>? focalLength;
if (exifs.TryGetValue(ExifTag.FocalLength, out focalLength)) {
Rational r = focalLength.Value;
FocalLength = $"{r.Numerator / r.Denominator}mm";
}
IExifValue<Rational>? fNumber;
if (exifs.TryGetValue(ExifTag.FNumber, out fNumber)) {
Rational r = fNumber.Value;
if (r.Denominator == 1) {
FNumber = $"f/{r.Numerator}";
} else {
if (r.Denominator != 10) {
Console.WriteLine($"*** WARNING: unexpected FNumber denominator: {r.Denominator}");
}
if (r.Numerator % 10 == 0) {
FNumber = $"f/{r.Numerator / 10}";
} else {
FNumber= $"f/{r.Numerator / 10}.{r.Numerator % 10}";
}
}
}
IExifValue<Rational>? exposureTime;
if (exifs.TryGetValue(ExifTag.ExposureTime, out exposureTime)) {
Rational r = exposureTime.Value;
if (r.Numerator == 1) {
ExposureTime = $"1/{r.Denominator}";
} else if (r.Numerator == 10) {
ExposureTime = $"1/{r.Denominator / 10}";
} else if (r.Denominator == 1) {
ExposureTime = $"{r.Numerator }\"";
} else if (r.Denominator == 10) {
ExposureTime = $"{r.Numerator / 10}.{r.Numerator % 10}\"";
} else {
Console.WriteLine($"*** WARNING: unexpected ExposureTime: {r.Numerator}/{r.Denominator}");
ExposureTime = r.ToString();
}
}
IExifValue<ushort[]>? isoSpeed;
if (exifs.TryGetValue(ExifTag.ISOSpeedRatings, out isoSpeed)) {
ushort[]? iso = isoSpeed.Value;
if (iso != null) {
if (iso.Length != 1) {
Console.WriteLine($"*** WARNING: unexpected ISOSpeedRatings array length: {iso.Length}");
}
if (iso.Length >= 1) {
IsoSpeed = $"ISO {iso[0]}";
}
}
}
// foreach (IExifValue exif in exifs.Values) {
// Console.WriteLine(exif.Tag.ToString() + " " + exif.GetValue().ToString());
// }
}
public Texture Texture() {
if (texture == placeholder && image != null) {
texture = new Texture(image);
@ -578,6 +585,16 @@ public class Game : GameWindow {
// string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\Germany all\104D7000");
// string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\many-birds\");
Console.WriteLine(DateTime.Now.ToString());
for (int i = 0; i < files.Count(); i++) {
string file = files[i];
if (file.ToLower().EndsWith(".jpg")) {
ImageInfo info = Image.Identify(file);
Console.WriteLine(file + " " + i + " " + info.Size);
}
}
Console.WriteLine(DateTime.Now.ToString());
for (int i = 0; i < files.Count(); i++) {
string file = files[i];
if (file.ToLower().EndsWith(".jpg")) {