//IDictionary<string, Point> objectStartPositions = new Dictionary<string, Point>();
public void Process(VideoAnalyticsStream analyticsStream) {
try {
var items = analyticsStream.items;
if (items != null) {
foreach (var item in items) {
if (item is Frame) {
var frame = (Frame)item;
var time = frame.utcTime; //TODO synchronize displaying frame and its annotation
var frameTransformation = frame.transformation;
Tuple<Win.Vector, Win.Point> frameTransform = null;
if (frameTransformation != null) {
frameTransform = Convert(frameTransformation);
//TODO hot fix
//frameTransform = new Tuple<Win.Vector, Point>(new Win.Vector(0, 0), new Point(1, 1));
}
var objects = frame.@object;
if (objects != null) {
foreach (var obj in objects) {
var objId = obj.objectId;
var appearance = obj.appearance;
if (appearance != null) {
var objectTransformation = appearance.transformation;
Tuple<Win.Vector, Win.Point> objTransform = null;
if (objectTransformation != null)
objTransform = Convert(objectTransformation);
if (frameTransform != null && objTransform != null)
objTransform = Transform(frameTransform, objTransform);
else if (frameTransform != null && objTransform == null)
objTransform = frameTransform;
var shape = appearance.shape;
if (shape != null) {
var bb = shape.boundingBox;
var gc = shape.centerOfGravity;
var boundingBox = Convert(bb);
var currentPosition = Convert(gc);
if (objTransform != null) {
boundingBox = Transform(boundingBox, objTransform);
currentPosition = Transform(currentPosition, objTransform);
}
var snapshot = new VAObjectSnapshot() {
Id = objId,
BoundingBox = boundingBox,
CurrentPosition = currentPosition,
StartPosition = default(Win.Point)
};
//TODO you have to track that some of objects became obsolete
/*Point startPosition;
if (!objectStartPositions.TryGetValue(objId, out startPosition)) {
startPosition = snapshot.CurrentPosition;
objectStartPositions[objId] = startPosition;
snapshot.StartPosition = startPosition;
this.initialized(snapshot);
}
else {
snapshot.StartPosition = startPosition;*/
this.changed(snapshot);
/*}*/
}
}
}
}
var objectTree = frame.objectTree;
if (objectTree != null) {
var objectIds = objectTree.delete;
if (objectIds != null) {
foreach (var objectId in objectIds) {
if (objectId.objectId != null)
this.deleted(new VAObjectSnapshot() { Id = objectId.objectId });
}
}
}
}
}
}
}
catch (Exception ex) {
dbg.Error(ex);
}
}
//IDictionary<string, Point> objectStartPositions = new Dictionary<string, Point>();
public void Process(VideoAnalyticsStream analyticsStream)
{
try {
var items = analyticsStream.items;
if (items != null)
{
foreach (var item in items)
{
if (item is Frame)
{
var frame = (Frame)item;
var time = frame.utcTime; //TODO synchronize displaying frame and its annotation
var frameTransformation = frame.transformation;
Tuple <Win.Vector, Win.Point> frameTransform = null;
if (frameTransformation != null)
{
frameTransform = Convert(frameTransformation);
//TODO hot fix
//frameTransform = new Tuple<Win.Vector, Point>(new Win.Vector(0, 0), new Point(1, 1));
}
var objects = frame.@object;
if (objects != null)
{
foreach (var obj in objects)
{
var objId = obj.objectId;
var appearance = obj.appearance;
if (appearance != null)
{
var objectTransformation = appearance.transformation;
Tuple <Win.Vector, Win.Point> objTransform = null;
if (objectTransformation != null)
{
objTransform = Convert(objectTransformation);
}
if (frameTransform != null && objTransform != null)
{
objTransform = Transform(frameTransform, objTransform);
}
else if (frameTransform != null && objTransform == null)
{
objTransform = frameTransform;
}
var shape = appearance.shape;
if (shape != null)
{
var bb = shape.boundingBox;
var gc = shape.centerOfGravity;
var boundingBox = Convert(bb);
var currentPosition = Convert(gc);
if (objTransform != null)
{
boundingBox = Transform(boundingBox, objTransform);
currentPosition = Transform(currentPosition, objTransform);
}
var snapshot = new VAObjectSnapshot()
{
Id = objId,
BoundingBox = boundingBox,
CurrentPosition = currentPosition,
StartPosition = default(Win.Point)
};
//TODO you have to track that some of objects became obsolete
/*Point startPosition;
* if (!objectStartPositions.TryGetValue(objId, out startPosition)) {
* startPosition = snapshot.CurrentPosition;
* objectStartPositions[objId] = startPosition;
* snapshot.StartPosition = startPosition;
* this.initialized(snapshot);
* }
* else {
* snapshot.StartPosition = startPosition;*/
this.changed(snapshot);
/*}*/
}
}
}
}
var objectTree = frame.objectTree;
if (objectTree != null)
{
var objectIds = objectTree.delete;
if (objectIds != null)
{
foreach (var objectId in objectIds)
{
if (objectId.objectId != null)
{
this.deleted(new VAObjectSnapshot()
{
Id = objectId.objectId
});
}
}
}
}
}
}
}
}
catch (Exception ex) {
dbg.Error(ex);
}
}
