public void SetExif(Exif.ExifData value)
{
// Console.WriteLine ("before save");
byte [] raw_data = value.Save();
// Console.WriteLine ("saved");
Marker exif = new Marker(ExifSignature.Id, raw_data);
// Console.WriteLine ("new");
Replace(ExifSignature, exif);
// Console.WriteLine ("replaced");
}
public static ExposureInfo GetExposureInfo(string path)
{
Exif.ExifData exif_data = new Exif.ExifData (path);
#if UNSED_CODE
MakerType maker = MakerType.Unknown;
string maker_tag_value = exif_data.LookupString (ExifTag.Make);
if (maker_tag_value != null) {
if (maker_tag_value.ToLower () == "nikon")
maker = MakerType.Nikon;
else if (maker_tag_value.ToLower () == "canon")
maker = MakerType.Canon;
}
#endif
ExposureInfo info = new ExposureInfo ();
info.ApertureValue = exif_data.LookupFirstValue (Exif.Tag.ApertureValue);
info.ExposureTime = exif_data.LookupFirstValue (Exif.Tag.ExposureTime);
info.DateTime = exif_data.LookupFirstValue (Exif.Tag.DateTimeOriginal);
info.IsoSpeed = exif_data.LookupFirstValue (Exif.Tag.ISOSpeedRatings);
// FIXME not sure why, this doesn't work.
#if BROKEN_CODE
// Use the maker note to figure out the ISO speed rating if it's not in the standard spot.
if (info.IsoSpeed == null && exif_data.LookupData (ExifTag.MakerNote) != null) {
switch (maker) {
case MakerType.Canon:
byte [] maker_note = exif_data.LookupData (ExifTag.MakerNote);
ExifData maker_ifd = new ExifData (maker_note_copy, (uint) maker_note_copy.Length);
byte [] data = maker_ifd.LookupData ((ExifTag) 0x1);
if (data.Length > 0x10) {
switch (data [0x10]) {
case 0xf: info.IsoSpeed = "AUTO"; break;
case 0x10: info.IsoSpeed = "ISO 50"; break;
case 0x11: info.IsoSpeed = "ISO 100"; break;
case 0x12: info.IsoSpeed = "ISO 200"; break;
case 0x13: info.IsoSpeed = "ISO 400"; break;
case 0x14: info.IsoSpeed = "ISO 800"; break;
case 0x15: info.IsoSpeed = "ISO 1600"; break;
case 0x16: info.IsoSpeed = "ISO 3200"; break;
}
}
break;
// FIXME: Add support for other MakerNotes, see:
// http://www.fifi.org/doc/jhead/exif-e.html#APP1
}
}
#endif
return info;
}
public static PixbufOrientation GetOrientation(Exif.ExifData data)
{
PixbufOrientation orientation = PixbufOrientation.TopLeft;
Exif.ExifEntry e = data.GetContents(Exif.Ifd.Zero).Lookup(Exif.Tag.Orientation);
if (e != null)
{
ushort [] value = e.GetDataUShort();
orientation = (PixbufOrientation)value [0];
}
return(orientation);
}
public static void Resize(string orig_path, string dest_path, int size, bool copy_meta)
{
Exif.ExifData exif_data;
if (copy_meta)
{
exif_data = new Exif.ExifData(orig_path);
}
else
{
exif_data = new Exif.ExifData();
}
Gdk.Pixbuf image = PixbufUtils.LoadAtMaxSize(orig_path, size, size);
PixbufUtils.SaveJpeg(image, dest_path, 95, exif_data);
image.Dispose();
}
public static Gdk.Pixbuf GetThumbnail(Exif.ExifData data)
{
byte [] thumb_data = data.Data;
if (thumb_data.Length > 0)
{
PixbufOrientation orientation = GetOrientation(data);
using (MemoryStream mem = new MemoryStream(thumb_data)) {
Gdk.Pixbuf thumb = new Gdk.Pixbuf(mem);
Gdk.Pixbuf rotated = PixbufUtils.TransformOrientation(thumb, orientation);
if (rotated != thumb)
{
thumb.Dispose();
}
return(rotated);
}
}
return(null);
}
public void Reset(Tag tag)
{
unsafe {
// Free any exsting data so that _initialize will actually set the data
if (_handle->data != IntPtr.Zero)
{
ExifData.free(_handle->data);
}
_handle->data = IntPtr.Zero;
}
exif_entry_initialize(handle, tag);
//FIXME the month string in time fields in libexif ix currently broken so we do our own.
if (tag == Tag.DateTime ||
tag == Tag.DateTimeOriginal ||
tag == Tag.DateTimeDigitized)
{
this.SetData(System.DateTime.Now);
}
}
public void SetData(byte [] data, int size)
{
unsafe {
if (data == null || data.Length == 0)
{
throw new System.Exception("Invalid Length");
}
if (_handle->data != IntPtr.Zero)
{
ExifData.free(_handle->data);
}
_handle->data = ExifData.malloc((uint)data.Length);
Marshal.Copy(data, 0, _handle->data, data.Length);
_handle->size = (uint)data.Length;
// This needs to be set per type as well but
// we do it here as well
_handle->components = (uint)(data.Length / size);
}
}
internal ExifContent (ExifData parent, IntPtr handle) : base (handle)
{
this.parent = parent;
exif_content_ref (this.handle);
}
public static void Resize (string orig_path, string dest_path, int size, bool copy_meta)
{
Exif.ExifData exif_data;
if (copy_meta)
exif_data = new Exif.ExifData (orig_path);
else
exif_data = new Exif.ExifData ();
Gdk.Pixbuf image = PixbufUtils.LoadAtMaxSize (orig_path, size, size);
PixbufUtils.SaveJpeg (image, dest_path, 95, exif_data);
image.Dispose ();
}
public static void SaveJpeg(Pixbuf pixbuf, string path, int quality, Exif.ExifData exif_data)
{
Pixbuf temp = null;
if (pixbuf.HasAlpha)
{
temp = Flatten(pixbuf);
pixbuf = temp;
}
// The DCF spec says thumbnails should be 160x120 always
Pixbuf thumbnail = ScaleToAspect(pixbuf, 160, 120);
byte [] thumb_data = Save(thumbnail, "jpeg", null, null);
exif_data.Data = thumb_data;
thumbnail.Dispose();
// Most of the things we will set will be in the 0th ifd
Exif.ExifContent content = exif_data.GetContents(Exif.Ifd.Zero);
// reset the orientation tag the default is top/left
content.GetEntry(Exif.Tag.Orientation).Reset();
// set the write time in the datetime tag
content.GetEntry(Exif.Tag.DateTime).Reset();
// set the software tag
content.GetEntry(Exif.Tag.Software).SetData(FSpot.Defines.PACKAGE + " version " + FSpot.Defines.VERSION);
byte [] data = exif_data.Save();
FPixbufJpegMarker [] marker = new FPixbufJpegMarker [0];
bool result = false;
unsafe {
if (data.Length > 0)
{
fixed(byte *p = data)
{
marker = new FPixbufJpegMarker [1];
marker [0].type = 0xe1; // APP1 marker
marker [0].data = p;
marker [0].length = data.Length;
result = f_pixbuf_save_jpeg(pixbuf.Handle, path, quality, marker, marker.Length);
}
}
else
{
result = f_pixbuf_save_jpeg(pixbuf.Handle, path, quality, marker, marker.Length);
}
}
if (temp != null)
{
temp.Dispose();
}
if (result == false)
{
throw new System.Exception("Error Saving File");
}
}
public static void SaveExif(string path, Exif.ExifData data)
{
f_save_jpeg_exif(path, data.Handle);
}
internal ExifContent(ExifData parent, IntPtr handle) : base(handle)
{
this.parent = parent;
exif_content_ref(this.handle);
}
