int volumeChangedCounter; //used to measure the times of the "volume changed" events (two per download)
#endregion Fields
#region Constructors
/// <summary>
/// Initialises the SDK and adds events
/// </summary>
public SDKHandler(LogFile _logFile, SettingsManager settings)
{
Error = EDSDK.EdsInitializeSDK();
SDKStateEvent += new EDSDK.EdsStateEventHandler(Camera_SDKStateEvent);
SDKPropertyEvent += new EDSDK.EdsPropertyEventHandler(Camera_SDKPropertyEvent);
SDKObjectEvent += new EDSDK.EdsObjectEventHandler(Camera_SDKObjectEvent);
logFile = _logFile;
photoParameters = new PhotoParameters();
photoStats = new PhotoStats();
PhotoInProgress = false;
photoTimer = new Stopwatch();
volumeChangedCounter = 0;
//get the camera list of attached cameras
CamList = GetCameraList();
if (CamList.Count == 0)
{
logFile.WriteLine("There are no attached cameras");
MessageBox.Show("There are no attached cameras");
return;
}
else if (CamList.Count > 1)
{
MessageBox.Show("Found more than one attached Canon camera");
logFile.WriteLine("There is more than one attached camera");
return;
}
//open the session with the first camera (only a single camera is allowed)
OpenSession(CamList[0]);
//label the camera type
String cameraDescription = MainCamera.Info.szDeviceDescription;
//label camera serial number
String cameraSN = GetSettingString((uint)EDSDK.PropID_BodyIDEx);
//label firmware
String cameraFirmware = GetSettingString((uint)EDSDK.PropID_FirmwareVersion);
//CameraHandler.SetSetting(EDSDK.PropID_SaveTo, (uint)EDSDK.EdsSaveTo.Camera);
//CameraHandler.SetSetting(EDSDK.PropID_SaveTo, (uint)EDSDK.EdsSaveTo.Host);
SetSetting(EDSDK.PropID_SaveTo, (uint)EDSDK.EdsSaveTo.Both);
SetCapacity(); //used to tell camera there is enough room on the PC HD (see codeproject tutorial)
//get the capacity and loading of the camera card storage drive
//also write out the names of the images to output
cameraStats = StorageAssessment();
//fill in the remainder of the camera parameters
cameraStats.cameraDescription = cameraDescription;
cameraStats.cameraSN = cameraSN;
cameraStats.cameraFirmware = cameraFirmware;
missionPlansFolder = settings.SaveToFolder;
if (!Directory.Exists(missionPlansFolder)) Directory.CreateDirectory(missionPlansFolder);
if (!Directory.Exists(missionPlansFolder + @"/TestImages/"))
Directory.CreateDirectory(missionPlansFolder + @"/TestImages/");
//default value -- update this
ImageSaveDirectory = missionPlansFolder + @"/TestImages/";
/////////////////////////////////////////////////////
// camera settings for WaldoAir Flight Operations
/////////////////////////////////////////////////////
try
{
//set the aperture ---
SetSetting(EDSDK.PropID_Av, CameraValues.AV(settings.Camera_fStop));
logFile.WriteLine("Set the fStop: " + settings.Camera_fStop);
//set the shutter speed
SetSetting(EDSDK.PropID_Tv, CameraValues.TV(settings.Camera_shutter));
logFile.WriteLine("Set the shutter: " + settings.Camera_shutter);
//set the ISO
SetSetting(EDSDK.PropID_ISOSpeed, CameraValues.ISO(settings.Camera_ISO));
logFile.WriteLine("Set the ISO: " + settings.Camera_ISO);
//set the white balance to Daylight
SetSetting(EDSDK.PropID_WhiteBalance, EDSDK.WhiteBalance_Daylight);
logFile.WriteLine("Set the WhiteBalance: DayLight");
}
catch
{
logFile.WriteLine(" could not set the camera parameters");
MessageBox.Show("Problem setting the Camera parameters");
}
}
/// <summary>
/// assess the camera storage situation for the MainCamera
/// </summary>
public CameraStats StorageAssessment()
{
//reference to the camera storage device (SD card or CF card)
CameraStats cameraStorage = new CameraStats();
//get the storage card volume reference for this camera
int volumeCount = 0;
//get the number of storage drives -- the Canon 5D Mark III has two storage devices (CF and SD)
Error = EDSDK.EdsGetChildCount(MainCamera.Ref, out volumeCount);
//get the capacity for each of the storage drives
EDSDK.EdsVolumeInfo vinfoMax = new EDSDK.EdsVolumeInfo(); //contains capacity information
ulong maxCapacity = 0;
int driveWithMax = 0;
IntPtr cameraVolRef;
for (int i = 0; i < volumeCount; i++)
{
//get the volume reference for the ith storage drive
Error = EDSDK.EdsGetChildAtIndex(MainCamera.Ref, i, out cameraVolRef);
EDSDK.EdsVolumeInfo vinfo = new EDSDK.EdsVolumeInfo(); //contains capacity information
Error = EDSDK.EdsGetVolumeInfo(cameraVolRef, out vinfo);
Debug.WriteLine(String.Format("DriveType: {0}, Max Capacity: {1}, Free Space: {2}",
vinfo.szVolumeLabel, vinfo.MaxCapacity, vinfo.FreeSpaceInBytes));
if (vinfo.MaxCapacity > maxCapacity)
{
maxCapacity = vinfo.MaxCapacity;
vinfoMax = vinfo;
driveWithMax = i;
MainCamera.Vol = cameraVolRef;
//report stats on the drive with max storage
//may want both drives reported -- SD card may be higher capacity by CF card may be faster
cameraStorage.cardType = vinfoMax.szVolumeLabel;
cameraStorage.MaxCapacity = vinfoMax.MaxCapacity / 1024; ;
cameraStorage.FreeSpaceInBytes = vinfoMax.FreeSpaceInBytes / 1024;
}
}
//get the directory structure for the drive -- locate the "DCIM", "MISC" and "100Canon" folders
int directoryCount = 0;
IntPtr dirItem;
EDSDK.EdsDirectoryItemInfo dirItemInfo; ;
//get number of directories -- should be 2: "DCIM" and "Misc"
//locate the DCIM folder where the imagery is kept
Error = EDSDK.EdsGetChildCount(MainCamera.Vol, out directoryCount);
for (int i = 0; i < directoryCount; i++)
{
Error = EDSDK.EdsGetChildAtIndex(MainCamera.Vol, i, out dirItem);
Error = EDSDK.EdsGetDirectoryItemInfo(dirItem, out dirItemInfo);
if (dirItemInfo.szFileName == "DCIM")
{
MainCamera.DCIMref = dirItem;
break;
}
}
//get the number of images currently stored on the drive
int CanonFolderCount = 0;
// the DCIM folder has a single directory beneath it
Error = EDSDK.EdsGetChildCount(MainCamera.DCIMref, out CanonFolderCount);
//there should be a single folder called "100Canon" beneath the DCIM folder
Error = EDSDK.EdsGetChildAtIndex(MainCamera.DCIMref, 0, out MainCamera.imageFolder);
//CanonImageFolder is now the reference to the folder containing the images
int imageCount = 0;
Error = EDSDK.EdsGetChildCount(MainCamera.imageFolder, out imageCount);
Debug.WriteLine(String.Format("number of images in the DCIM folder = {0} ", imageCount));
cameraStorage.numImages = (uint)imageCount;
IntPtr imageFile;
EDSDK.EdsDirectoryItemInfo imageFileInfo; ;
//cycle through all the images getting their name on the storage drive
cameraStorage.avgImageSize = 0;
for (int i = 0; i < imageCount; i++)
{
Error = EDSDK.EdsGetChildAtIndex(MainCamera.imageFolder, i, out imageFile);
Error = EDSDK.EdsGetDirectoryItemInfo(imageFile, out imageFileInfo);
Debug.WriteLine(String.Format("imageName " + imageFileInfo.szFileName + " size {0} ", imageFileInfo.Size));
cameraStorage.avgImageSize += imageFileInfo.Size;
}
if (cameraStorage.numImages > 0)
cameraStorage.avgImageSize /= (cameraStorage.numImages * 1024);
else cameraStorage.avgImageSize = 0;
return cameraStorage;
}