IOS vuforia cloud and video merge tutorials


In this article, i will introduce how to integrate vuforia cloud and video both in one sample . 

Step 1 
go to vuforia website and download sample from this link 
https://developer.vuforia.com/downloads/samples 
In this sample, you can found cloud Recognition

Step 2  Download video play back sample 

Go to advance topic and download "vuforia-samples-advanced-ios-6-2-11.zip" File 
Now you have both file 

Step 3 Merge both 
Video sample add in cloud sample  like this 

Step 4 VideoPlaybackViewController File some changes 

 VideoPlaybackViewController.h

VideoPlaybackViewController.mm 

Import this two file 

#import <Vuforia/ImageTarget.h> // Cloud
#import <Vuforia/TargetFinder.h> // Cloud

your cloud access key 

static const char* const kAccessKey = "722c4855b3f7e32071b32c4c742e28539487be0b";
static const char* const kSecretKey = "3078696d4aa9ab51a31789a02d75baab9d4d4f0b";


No need to change in whole file , just changes only those places which are mentioned below 

Step 5 
doLoadTrackersData function comment and add new code 

//..................  Cloud

- (bool) doLoadTrackersData {
    Vuforia::TrackerManager& trackerManager = Vuforia::TrackerManager::getInstance();
    Vuforia::ObjectTracker* objectTracker = static_cast<Vuforia::ObjectTracker*>(trackerManager.getTracker(Vuforia::ObjectTracker::getClassType()));
    if (objectTracker == NULL)
    {
        NSLog(@">doLoadTrackersData>Failed to load tracking data set because the ImageTracker has not been initialized.");
        return NO;
        
    }
    
    // Initialize visual search:
    Vuforia::TargetFinder* targetFinder = objectTracker->getTargetFinder();
    if (targetFinder == NULL)
    {
        NSLog(@">doLoadTrackersData>Failed to get target finder.");
        return NO;
    }
    
    NSDate *start = [NSDate date];
    
    // Start initialization:
    if (targetFinder->startInit(kAccessKey, kSecretKey))
    {
        targetFinder->waitUntilInitFinished();
        
        NSDate *methodFinish = [NSDate date];
        NSTimeInterval executionTime = [methodFinish timeIntervalSinceDate:start];
        
        NSLog(@"waitUntilInitFinished Execution Time: %lf", executionTime);
    }
    
    int resultCode = targetFinder->getInitState();
    if ( resultCode != Vuforia::TargetFinder::INIT_SUCCESS)
    {
        NSLog(@">doLoadTrackersData>Failed to initialize target finder.");
        if (resultCode == Vuforia::TargetFinder::INIT_ERROR_NO_NETWORK_CONNECTION) {
            NSLog(@"CloudReco error:Vuforia::TargetFinder::INIT_ERROR_NO_NETWORK_CONNECTION");
        } else if (resultCode == Vuforia::TargetFinder::INIT_ERROR_SERVICE_NOT_AVAILABLE) {
            NSLog(@"CloudReco error:Vuforia::TargetFinder::INIT_ERROR_SERVICE_NOT_AVAILABLE");
        } else {
            NSLog(@"CloudReco error:%d", resultCode);
        }
        
        int initErrorCode;
        if(resultCode == Vuforia::TargetFinder::INIT_ERROR_NO_NETWORK_CONNECTION)
        {
            initErrorCode = Vuforia::TargetFinder::UPDATE_ERROR_NO_NETWORK_CONNECTION;
        }
        else
        {
            initErrorCode = Vuforia::TargetFinder::UPDATE_ERROR_SERVICE_NOT_AVAILABLE;
        }
        [self showUIAlertFromErrorCode: initErrorCode];
        return NO;
    } else {
        NSLog(@">doLoadTrackersData>target finder initialized");
    }
    
    return YES;
}


i have add image 

Step 6  function "doStartTrackers" changes 

- (bool) doStartTrackers {
    // Set the number of simultaneous targets to two
    Vuforia::setHint(Vuforia::HINT_MAX_SIMULTANEOUS_IMAGE_TARGETS, kNumVideoTargets);
    
    Vuforia::TrackerManager& trackerManager = Vuforia::TrackerManager::getInstance();
    Vuforia::Tracker* tracker = trackerManager.getTracker(Vuforia::ObjectTracker::getClassType());
    
    Vuforia::ObjectTracker* objectTracker = static_cast<Vuforia::ObjectTracker*>(
                                                                                 trackerManager.getTracker(Vuforia::ObjectTracker::getClassType()));
    
//    if(tracker == 0) {
//        
//         NSLog(@"------ Nishant  Failed to start Object Tracker, as it is null.");
//        return false;
//    }
//    
//    
//    tracker->start();
    //......now is icloud
    
   
    
    // Start cloud based recognition if we are in scanning mode:
    if (objectTracker == 0) {
        NSLog(@"---- Nishant Failed to start Object Tracker, as it is null.");
        return NO;
    }
    objectTracker->start();
    
    // Start cloud based recognition if we are in scanning mode:
    if (scanningMode)
    {
        Vuforia::TargetFinder* targetFinder = objectTracker->getTargetFinder();
        if (targetFinder != 0) {
            isVisualSearchOn = targetFinder->startRecognition();
        }
    }

    return true;
}


STEP 7 function "onVuforiaUpdate" changes

- (void) onVuforiaUpdate: (Vuforia::State *) state
{
    // Get the tracker manager:
    Vuforia::TrackerManager& trackerManager = Vuforia::TrackerManager::getInstance();
    
    // Get the image tracker:
    Vuforia::ObjectTracker* objectTracker = static_cast<Vuforia::ObjectTracker*>(trackerManager.getTracker(Vuforia::ObjectTracker::getClassType()));
    
    // Get the target finder:
    Vuforia::TargetFinder* finder = objectTracker->getTargetFinder();
    
    // Check if there are new results available:
    const int statusCode = finder->updateSearchResults();
    if (statusCode < 0)
    {
        // Show a message if we encountered an error:
        NSLog(@"update search result failed:%d", statusCode);
        if (statusCode == Vuforia::TargetFinder::UPDATE_ERROR_NO_NETWORK_CONNECTION) {
            [self showUIAlertFromErrorCode:statusCode];
        }
    }
    else if (statusCode == Vuforia::TargetFinder::UPDATE_RESULTS_AVAILABLE)
    {
        
        // Iterate through the new results:
        for (int i = 0; i < finder->getResultCount(); ++i)
        {
            const Vuforia::TargetSearchResult* result = finder->getResult(i);
            
            // Check if this target is suitable for tracking:
            if (result->getTrackingRating() > 0)
            {
                // Create a new Trackable from the result:
                Vuforia::Trackable* newTrackable = finder->enableTracking(*result);
                if (newTrackable != 0)
                {
                    //  Avoid entering on ContentMode when a bad target is found
                    //  (Bad Targets are targets that are exists on the CloudReco database but not on our
                    //  own book database)
                    NSLog(@"Successfully created new trackable '%s' with rating '%d'.",
                          newTrackable->getName(), result->getTrackingRating());
                    NSString *video_url = [NSString stringWithFormat:@"%s",result->getMetaData()];
                    NSLog(@"%@",video_url);
                    if([video_url length]!=0)
                    {
                       [eaglView preparePlayers_st:video_url];
                    }else
                    {
                        NSLog(@"<------ Stop --->");
                        //[self doInitTrackers];
                        //[self doUnloadTrackersData];
                        [eaglView No_url_available];
                        //[self normal_alert];
                      
                        
                    }
                   
                    //NSLog(@"Nishant Checking ---> %s",result->getMetaData());
                    
                    if (extendedTrackingEnabled) {
                        newTrackable->startExtendedTracking();
                    }
                }
                else
                {
                    NSLog(@"Failed to create new trackable.");
                }
            }
        }
    }

}
STEP 8 function "doStopTrackers" changes


- (bool) doStopTrackers {

    Vuforia::TrackerManager& trackerManager = Vuforia::TrackerManager::getInstance();
    Vuforia::ObjectTracker* objectTracker = static_cast<Vuforia::ObjectTracker*>(
                                                                                 trackerManager.getTracker(Vuforia::ObjectTracker::getClassType()));
    if(objectTracker != 0) {
        objectTracker->stop();
        
        // Stop cloud based recognition:
        Vuforia::TargetFinder* targetFinder = objectTracker->getTargetFinder();
        if (targetFinder != 0) {
            isVisualSearchOn = !targetFinder->stop();
        }
    }
    return YES;
}

STEP 8 function "doUnloadTrackersData" changes


- (bool) doUnloadTrackersData {
    // Get the image tracker:
    Vuforia::TrackerManager& trackerManager = Vuforia::TrackerManager::getInstance();
    Vuforia::ObjectTracker* objectTracker = static_cast<Vuforia::ObjectTracker*>(trackerManager.getTracker(Vuforia::ObjectTracker::getClassType()));
    
    if (objectTracker == NULL)
    {
        NSLog(@"Failed to unload tracking data set because the ObjectTracker has not been initialized.");
        return NO;
    }
    
    // Deinitialize visual search:
    Vuforia::TargetFinder* finder = objectTracker->getTargetFinder();
    finder->deinit();
    return YES;

}
My Next tutorial is how to play URL Video in Vuforia Video play back sample 

Comments

  1. Anonymous14 June 2017 at 02:09

    Its not working. i've already fetched target_id by book_sample_code. but now its playing that defaults videos.

    ReplyDelete
    Replies
    1. Nishant Chandwani14 June 2017 at 02:51

      let me know the issue you are facing , what you want to do either play url or detection of cloud object

      Delete
  2. Unknown26 June 2018 at 03:26

    Hi Nishant Bhai, there is a possibility to download the entire project?

    ReplyDelete
  3. Tomapepqa28 August 2018 at 23:30

    Hello Nishant,

    I have been checking your blogs about Vuforia Video Playback with Cloud Reco

    http://nishantchandwani.blogspot.com/2017/06/ios-vuforia-cloud-and-video-merge.html

    I hope your effort helps many people..but currently, It was outdated. So I am requesting you to update the blog and if possible share Github link for same. It very much appreciated.

    Thanks in Advance.

    ReplyDelete
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