public void Save()
{
string in_path = CreateFile();
string out_path = ImageFile.TempPath("output.jpg");
JpegHeader source;
JpegHeader dest;
using (Stream orig = File.OpenRead(in_path)) {
source = new JpegHeader(orig);
using (Stream output = File.OpenWrite(out_path)) {
source.Save(output);
}
using (Stream result = File.OpenRead(out_path)) {
dest = new JpegHeader(result);
Assert.AreEqual(source.Markers.Count, dest.Markers.Count);
Assert.AreEqual(source.GuessQuality(), dest.GuessQuality());
Assert.AreEqual(orig.Length, result.Length);
for (int i = 0; i < source.Markers.Count; i++)
{
Marker d = (Marker)dest.Markers [i];
Marker s = (Marker)source.Markers [i];
Assert.AreEqual(d.Type, s.Type);
Assert.AreEqual(d.GetName(), s.GetName());
if (d.Data != null)
{
Assert.AreEqual(d.Data.Length, s.Data.Length);
for (int j = 0; j < d.Data.Length; j++)
{
Assert.AreEqual(d.Data [j], s.Data [j]);
}
}
else
{
Assert.AreEqual(d.Data, s.Data);
}
}
}
}
File.Delete(in_path);
File.Delete(out_path);
}
public void Load()
{
string path = CreateFile();
using (Stream stream = File.OpenRead(path)) {
JpegHeader jhead = new JpegHeader(stream);
Assert.AreEqual(((Marker)jhead.Markers [0]).Type, JpegMarker.Soi);
Assert.AreEqual(((Marker)jhead.Markers [1]).GetName(), "JFIF");
Assert.AreEqual(((Marker)jhead.Markers [1]).Type, JpegMarker.App0);
Assert.AreEqual(((Marker)jhead.Markers [2]).GetName(), "Exif");
Assert.AreEqual(((Marker)jhead.Markers [2]).Type, JpegMarker.App1);
// NOTE the currently we don't store the Eoi as the last marker
Assert.AreEqual(((Marker)jhead.Markers [jhead.Markers.Count - 1]).Type, JpegMarker.Sos);
// NOTE this is kind of sill but it might help
Assert.IsTrue(Math.Abs(jhead.GuessQuality() - quality) <= 1);
Assert.IsNotNull(jhead.GetExifHeader());
}
File.Delete(path);
}
public void Save ()
{
string in_path = CreateFile ();
string out_path = ImageFile.TempPath ("output.jpg");
JpegHeader source;
JpegHeader dest;
using (Stream orig = File.OpenRead (in_path)) {
source = new JpegHeader (orig);
using (Stream output = File.OpenWrite (out_path)) {
source.Save (output);
}
using (Stream result = File.OpenRead (out_path)) {
dest = new JpegHeader (result);
Assert.AreEqual (source.Markers.Count, dest.Markers.Count);
Assert.AreEqual (source.GuessQuality (), dest.GuessQuality ());
Assert.AreEqual (orig.Length, result.Length);
for (int i = 0; i < source.Markers.Count; i++) {
Marker d = (Marker) dest.Markers [i];
Marker s = (Marker) source.Markers [i];
Assert.AreEqual (d.Type, s.Type);
Assert.AreEqual (d.GetName (), s.GetName ());
if (d.Data != null) {
Assert.AreEqual (d.Data.Length, s.Data.Length);
for (int j = 0; j < d.Data.Length; j++) {
Assert.AreEqual (d.Data [j], s.Data [j]);
}
} else {
Assert.AreEqual (d.Data, s.Data);
}
}
}
}
File.Delete (in_path);
File.Delete (out_path);
}
public void Load ()
{
string path = CreateFile ();
using (Stream stream = File.OpenRead (path)) {
JpegHeader jhead = new JpegHeader (stream);
Assert.AreEqual (((Marker)jhead.Markers [0]).Type, JpegMarker.Soi);
Assert.AreEqual (((Marker)jhead.Markers [1]).GetName (), "JFIF");
Assert.AreEqual (((Marker)jhead.Markers [1]).Type, JpegMarker.App0);
Assert.AreEqual (((Marker)jhead.Markers [2]).GetName (), "Exif");
Assert.AreEqual (((Marker)jhead.Markers [2]).Type, JpegMarker.App1);
// NOTE the currently we don't store the Eoi as the last marker
Assert.AreEqual (((Marker)jhead.Markers [jhead.Markers.Count -1]).Type, JpegMarker.Sos);
// NOTE this is kind of sill but it might help
Assert.IsTrue (Math.Abs (jhead.GuessQuality () - quality) <= 1);
Assert.IsNotNull (jhead.GetExifHeader ());
}
File.Delete (path);
}
