public void DeleteFrameEdit(long timestamp, FRAME_EDIT_TYPE type, BoundingBox bbox)
{
if (m_editsDictionary.ContainsKey(timestamp))
{
ObservableCollection <FrameEdit> list = m_editsDictionary[timestamp];
bool found = false;
foreach (FrameEdit fe in list)
{
if (fe.box.x1 == bbox.x1 &&
fe.box.y1 == bbox.y1 &&
fe.box.x2 == bbox.x2 &&
fe.box.y2 == bbox.y2)
{
found = true;
list.Remove(fe);
}
}
if (!found)
{
OnVideoEditsDatabaseEvent(new VideoEditsDatabase_EventArgs(true, "Failed to remove Frame Edit:\n" +
"given bounding box not found for timestamp"));
}
}
else
{
OnVideoEditsDatabaseEvent(new VideoEditsDatabase_EventArgs(true, "Failed to remove Frame Edit:\n" +
"given timestamp not found"));
}
}
public void RemoveEditsByType(FRAME_EDIT_TYPE type)
{
// iterate each frame with edits
List <double> entriesToDelete = new List <double>();
foreach (KeyValuePair <double, ObservableCollection <FrameEdit> > frame in m_editsDictionary)
{
ObservableCollection <FrameEdit> list = frame.Value;
ObservableCollection <FrameEdit> itemsToDelete = new ObservableCollection <FrameEdit>();
foreach (FrameEdit fe in list)
{
if (fe.type == type)
{
itemsToDelete.Add(fe);
}
}
foreach (FrameEdit fe in itemsToDelete)
{
list.Remove(fe);
}
if (list.Count == 0)
{
entriesToDelete.Add(frame.Key);
}
}
foreach (double timestamp in entriesToDelete)
{
m_editsDictionary.Remove(timestamp);
}
}
public bool ReadDatabase()
{
bool success = true;
try
{
if (File.Exists(m_databaseFilename))
{
m_editsDictionary = new ObservableConcurrentDictionary <double, ObservableCollection <FrameEdit> >();
using (BinaryReader br = new BinaryReader(new FileStream(m_databaseFilename, FileMode.Open)))
{
int numFrames = br.ReadInt32(); // read number of frames with edits
// iterate each frame with edits
for (int i = 0; i < numFrames; i++)
{
double timestamp = br.ReadDouble();
int numFrameEdits = br.ReadInt32();
ObservableCollection <FrameEdit> feList = new ObservableCollection <FrameEdit>();
for (int j = 0; j < numFrameEdits; j++)
{
FRAME_EDIT_TYPE type = (FRAME_EDIT_TYPE)br.ReadInt32();
int x1 = br.ReadInt32();
int y1 = br.ReadInt32();
int x2 = br.ReadInt32();
int y2 = br.ReadInt32();
FrameEdit fe = new FrameEdit(type, new BoundingBox(x1, y1, x2, y2));
feList.Add(fe);
}
m_editsDictionary.Add(timestamp, feList);
}
}
}
else
{
success = false;
m_errorMsg = "File does not exist: " + m_databaseFilename;
OnVideoEditsDatabaseEvent(new VideoEditsDatabase_EventArgs(true, m_errorMsg));
}
}
catch (Exception ex)
{
m_errorMsg = ex.Message;
success = false;
OnVideoEditsDatabaseEvent(new VideoEditsDatabase_EventArgs(true, m_errorMsg));
}
return(success);
}
public void AddFrameEdit(double timestamp, FRAME_EDIT_TYPE type, BoundingBox bbox)
{
if (bbox.x2 - bbox.x1 > m_minimumRedactionSize && bbox.y2 - bbox.y1 > m_minimumRedactionSize) // make sure bounding box is big enough
{
if (m_editsDictionary.ContainsKey(timestamp))
{
ObservableCollection <FrameEdit> list = m_editsDictionary[timestamp];
list.Add(new FrameEdit(type, bbox));
}
else
{
ObservableCollection <FrameEdit> list = new ObservableCollection <FrameEdit>();
list.Add(new FrameEdit(type, bbox));
m_editsDictionary.Add(timestamp, list);
}
}
}
public FrameEdit(FRAME_EDIT_TYPE Type, BoundingBox BBox)
{
type = Type;
box = BBox;
}
