public static MultiObjectTrackingResult stitchAllChunksAllObjectsOfOneVideo(List <SatyamAggregatedResultsTableEntry> entries, out List <string> ImageURLs, out int fps)
{
ImageURLs = new List <string>();
fps = 0;
if (entries.Count == 0)
{
return(null);
}
SatyamJobStorageAccountAccess satyamStorage = new SatyamJobStorageAccountAccess();
MultiObjectTrackingResult stitched = new MultiObjectTrackingResult();
int totalFrameCounts = 0;
// ensure the order is correct
SortedDictionary <int, List <SatyamAggregatedResultsTableEntry> > sortedEntries = new SortedDictionary <int, List <SatyamAggregatedResultsTableEntry> >();
List <int> idx = new List <int>();
for (int i = 0; i < entries.Count; i++)
{
SatyamAggregatedResultsTableEntry entry = entries[i];
SatyamAggregatedResult satyamAggResult = JSonUtils.ConvertJSonToObject <SatyamAggregatedResult>(entry.ResultString);
SatyamTask aggTask = JSonUtils.ConvertJSonToObject <SatyamTask>(satyamAggResult.TaskParameters);
string video = URIUtilities.localDirectoryNameFromURI(aggTask.SatyamURI);
string[] fields = video.Split('_');
int startingFrame = Convert.ToInt32(fields[fields.Length - 1]);
if (!sortedEntries.ContainsKey(startingFrame))
{
sortedEntries.Add(startingFrame, new List <SatyamAggregatedResultsTableEntry>());
idx.Add(startingFrame);
}
sortedEntries[startingFrame].Add(entries[i]);
}
idx.Sort();
List <string> AggObjIds = new List <string>();
for (int i = 0; i < idx.Count; i++)
{
int noFramesOverlap = 0;
string blobDir = "";
// grouping all objects that belong to the same chunk
MultiObjectTrackingResult aggTracksOfAllObjectsPerChunk = new MultiObjectTrackingResult();
List <string> objIds = new List <string>();
for (int j = 0; j < sortedEntries[idx[i]].Count; j++)
{
SatyamAggregatedResultsTableEntry entry = sortedEntries[idx[i]][j];
SatyamAggregatedResult satyamAggResult = JSonUtils.ConvertJSonToObject <SatyamAggregatedResult>(entry.ResultString);
SatyamTask aggTask = JSonUtils.ConvertJSonToObject <SatyamTask>(satyamAggResult.TaskParameters);
MultiObjectTrackingSubmittedJob job = JSonUtils.ConvertJSonToObject <MultiObjectTrackingSubmittedJob>(aggTask.jobEntry.JobParameters);
if (job.ChunkOverlap != 0.0)
{
noFramesOverlap = (int)(job.ChunkOverlap * job.FrameRate);
}
fps = job.FrameRate;
blobDir = URIUtilities.localDirectoryFullPathFromURI(aggTask.SatyamURI);
string objId = URIUtilities.filenameFromURINoExtension(aggTask.SatyamURI);
objIds.Add(objId);
TrackletLabelingAggregatedResult aggresult = JSonUtils.ConvertJSonToObject <TrackletLabelingAggregatedResult>(satyamAggResult.AggregatedResultString);
WebClient wb = new WebClient();
Stream aggTrackStream = wb.OpenRead(aggresult.AggregatedTrackletsString_URL);
StreamReader reader = new StreamReader(aggTrackStream);
String aggTrackString = reader.ReadToEnd();
MultiObjectTrackingResult aggTracks = JSonUtils.ConvertJSonToObject <MultiObjectTrackingResult>(aggTrackString);
if (aggTracksOfAllObjectsPerChunk.tracks.Count == 0)
{
aggTracksOfAllObjectsPerChunk = aggTracks;
}
else
{
for (int k = 0; k < aggTracks.tracks.Count; k++)
{
aggTracksOfAllObjectsPerChunk.tracks.Add(aggTracks.tracks[k]);
}
}
}
List <string> TraceURLs = satyamStorage.getURLListOfSpecificExtensionUnderSubDirectoryByURI(blobDir, new List <string>()
{
"jpg", "png"
});
if (i == 0)
{
ImageURLs.AddRange(TraceURLs);
stitched = aggTracksOfAllObjectsPerChunk;
totalFrameCounts += TraceURLs.Count;
AggObjIds = objIds;
}
else
{
int noNewFrames = 0;
for (int j = noFramesOverlap; j < TraceURLs.Count; j++)
{
ImageURLs.Add(TraceURLs[j]);
noNewFrames++;
}
//stitched = MultiObjectTrackingAnalyzer.stitchTwoTracesByTubeletsOfOverlappingVideoChunk(stitched,
// aggTracksOfAllObjectsPerChunk, totalFrameCounts, totalFrameCounts + noNewFrames, noFramesOverlap, fps);
// postpone the agg trace
double frameTimeInMiliSeconds = (double)1000 / (double)fps;
double timeToPostponeInMilliSeconds = (double)(totalFrameCounts - noFramesOverlap) * frameTimeInMiliSeconds;
//TimeSpan timeSpanToPostponeInSeconds = new TimeSpan(0,0,0,0, (int)timeToPostponeInMilliSeconds);
TimeSpan timeSpanToPostponeInSeconds = DateTimeUtilities.getTimeSpanFromTotalMilliSeconds((int)timeToPostponeInMilliSeconds);
aggTracksOfAllObjectsPerChunk.postpone(timeSpanToPostponeInSeconds);
// overlap must be 0
for (int k = 0; k < aggTracksOfAllObjectsPerChunk.tracks.Count; k++)
{
if (!AggObjIds.Contains(objIds[k]))
{
stitched.tracks.Add(aggTracksOfAllObjectsPerChunk.tracks[k]);
AggObjIds.Add(objIds[k]);
}
else
{
// stitch the track for the same id
int tckIdx = AggObjIds.IndexOf(objIds[k]);
stitched.tracks[tckIdx] = CompressedTrack.stitchTwoAdjacentTrack(stitched.tracks[tckIdx], aggTracksOfAllObjectsPerChunk.tracks[k]);
}
}
totalFrameCounts += noNewFrames;
}
//debug
//generateVideoForEvaluation(ImageURLs, stitched, directoryName + "_" + i, videoName, fps);
}
return(stitched);
}
public static MultiObjectTrackingResult stitchTwoTracesByTubeletsOfOverlappingVideoChunk(MultiObjectTrackingResult currentTrace, MultiObjectTrackingResult nextTrace,
int totalFrameCountsBeforeStitching, int totalFrameCountsAfterStitching, int noFramesOverlap, int fps = 10)
{
//if (noFramesOverlap == 0) return null;
double frameTimeInMiliSeconds = (double)1000 / (double)fps;
List <MultiObjectTrackingResult> compressedOverlappingTracks = new List <MultiObjectTrackingResult>();
DateTime overlapStart = currentTrace.VideoSegmentStartTime.AddMilliseconds(frameTimeInMiliSeconds * (totalFrameCountsBeforeStitching - noFramesOverlap));
DateTime overlapEnd = currentTrace.VideoSegmentStartTime.AddMilliseconds(frameTimeInMiliSeconds * (totalFrameCountsBeforeStitching - 1));
//DateTime nextTrace_overlapStart = nextTrace.VideoSegmentStartTime;
//DateTime nextTrace_overlapEnd = nextTrace.VideoSegmentStartTime.AddMilliseconds(frameTimeInMiliSeconds * (noFramesOverlap-1));
//MultiObjectTrackingResult nextTrace_Overlap = nextTrace.getSubTimeSegment(nextTrace_overlapStart, nextTrace_overlapEnd, fps);
//compressedOverlappingTracks.Add(nextTrace_Overlap);
List <List <string> > CrossChunkEntitiesAnnotationStrings = new List <List <string> >();
List <List <string> > SingleChunkEntitiesAnnotationStrings = new List <List <string> >();
for (int i = 0; i < 2; i++)
{
//boundingboxes.Add(new List<BoundingBox>());
CrossChunkEntitiesAnnotationStrings.Add(new List <string>());
SingleChunkEntitiesAnnotationStrings.Add(new List <string>());
}
double timeToPostponeInMilliSeconds = (double)(totalFrameCountsBeforeStitching - noFramesOverlap) * frameTimeInMiliSeconds;
//TimeSpan timeSpanToPostponeInSeconds = new TimeSpan(0,0,0,0, (int)timeToPostponeInMilliSeconds);
TimeSpan timeSpanToPostponeInSeconds = DateTimeUtilities.getTimeSpanFromTotalMilliSeconds((int)timeToPostponeInMilliSeconds);
//// get the end of the first trace and the begining + overlap of the second trace
//DateTime CurrentTraceSampleFrameTime = currentTrace.VideoSegmentStartTime.AddMilliseconds(frameTimeInMiliSeconds * (totalFrameCountsBeforeStitching - 1));
//DateTime NextTraceSampleFrameTime = nextTrace.VideoSegmentStartTime.AddMilliseconds(frameTimeInMiliSeconds * (Math.Max(noFramesOverlap - 1, 0)));
// current trace
List <string> currentTrace_filteredAnnotationStrings = new List <string>();
foreach (CompressedTrack entity in currentTrace.tracks)
{
// get a snapshot frame at start and end of current trace
VATIC_DVA_Frame currentTraceOverlapStartFrame = entity.getFrameAt(overlapStart);
string annotationString = entity.unCompressToTrackAnnotationString();
string[] fields = annotationString.Split(':');
List <string> TimeFilteredSegmentStringList = new List <string>();
TimeFilteredSegmentStringList.Add(fields[0]); // adds the label back
if (currentTraceOverlapStartFrame != null)
{
TimeFilteredSegmentStringList.Add(currentTraceOverlapStartFrame.ToAnnotationString()); // adds a starting frame
}
// remove the label of the second string
int count = 0;
for (int j = 1; j < fields.Length; j++)
{
// remove the overlapping part.
DateTime time = DateTimeUtilities.getDateTimeFromString(fields[j].Split(',')[0]);
if (time <= overlapStart || time > overlapEnd)
{
continue;
}
TimeFilteredSegmentStringList.Add(fields[j]);
count++;
}
if (count == 0)
{
// not a cross chunk one
SingleChunkEntitiesAnnotationStrings[0].Add(annotationString);
continue;
}
else
{
//a cross chunk one
CrossChunkEntitiesAnnotationStrings[0].Add(annotationString);
// construct for association
string filteredAnnotationString = ObjectsToStrings.ListString(TimeFilteredSegmentStringList, ':');
currentTrace_filteredAnnotationStrings.Add(filteredAnnotationString);
}
}
string currentOverlap_totalFilteredAnnotationString = ObjectsToStrings.ListString(currentTrace_filteredAnnotationStrings, '|');
MultiObjectTrackingResult currentTrace_Overlap = MultiObjectTrackingResult.ConvertAnnotationStringToMultiObjectTrackingResult(overlapStart, currentOverlap_totalFilteredAnnotationString, "current", "0", noFramesOverlap, fps);
compressedOverlappingTracks.Add(currentTrace_Overlap);
// next trace
/// postpone the timestamp of the second trace
nextTrace.postpone(timeSpanToPostponeInSeconds);
List <string> nextTrace_filteredAnnotationStrings = new List <string>();
foreach (CompressedTrack entity in nextTrace.tracks)
{
VATIC_DVA_Frame nextTraceOverlapStartFrame = entity.getFrameAt(overlapStart);
VATIC_DVA_Frame nextTraceOverlapEndFrame = entity.getFrameAt(overlapEnd);
string annotationString = entity.unCompressToTrackAnnotationString();
string[] fields = annotationString.Split(':');
List <string> TimeFilteredSegmentStringList = new List <string>();
TimeFilteredSegmentStringList.Add(fields[0]); // adds the label back
if (nextTraceOverlapStartFrame != null)
{
TimeFilteredSegmentStringList.Add(nextTraceOverlapStartFrame.ToAnnotationString()); // adds a starting frame
}
// remove the label of the second string
int count = 0;
for (int j = 1; j < fields.Length; j++)
{
// remove the overlapping part.
DateTime time = DateTimeUtilities.getDateTimeFromString(fields[j].Split(',')[0]);
if (time <= overlapStart || time >= overlapEnd)
{
continue;
}
TimeFilteredSegmentStringList.Add(fields[j]);
count++;
}
if (count == 0)
{
// not a cross chunk one
SingleChunkEntitiesAnnotationStrings[1].Add(annotationString);
continue;
}
else
{
//a cross chunk one
CrossChunkEntitiesAnnotationStrings[1].Add(annotationString);
// construct for association
if (nextTraceOverlapEndFrame != null)
{
TimeFilteredSegmentStringList.Add(nextTraceOverlapEndFrame.ToAnnotationString()); // adds a ending frame
}
string filteredAnnotationString = ObjectsToStrings.ListString(TimeFilteredSegmentStringList, ':');
nextTrace_filteredAnnotationStrings.Add(filteredAnnotationString);
}
}
string nextOverlap_totalFilteredAnnotationString = ObjectsToStrings.ListString(nextTrace_filteredAnnotationStrings, '|');
MultiObjectTrackingResult nextTrace_Overlap = MultiObjectTrackingResult.ConvertAnnotationStringToMultiObjectTrackingResult(overlapStart, nextOverlap_totalFilteredAnnotationString, "next", "1", noFramesOverlap, fps);
compressedOverlappingTracks.Add(nextTrace_Overlap);
List <MultipartiteWeightedMatch> association = TrackletsAssociation.AssociateTracklets(compressedOverlappingTracks);
DateTime NewFrameStartTime = currentTrace.VideoSegmentStartTime + DateTimeUtilities.getTimeSpanFromTotalMilliSeconds((int)(totalFrameCountsBeforeStitching * frameTimeInMiliSeconds));
string totalStitchedAnnotationString = stitchAnnotationStringByAssociation(CrossChunkEntitiesAnnotationStrings, SingleChunkEntitiesAnnotationStrings,
association, NewFrameStartTime);
MultiObjectTrackingResult ret = MultiObjectTrackingResult.ConvertAnnotationStringToMultiObjectTrackingResult(currentTrace.VideoSegmentStartTime, totalStitchedAnnotationString, currentTrace.cameraId, currentTrace.UID, totalFrameCountsAfterStitching, fps);
return(ret);
}