controller.rb

class MainController < UIViewController 

  def viewDidLoad
    super

    # Sets a top of 0 to be below the navigation control
    self.edgesForExtendedLayout = UIRectEdgeNone

    rmq.stylesheet = MainStylesheet
    init_nav
    rmq(self.view).apply_style :root_view

    # Create your UIViews here
    @hello_world_label = rmq.append(UILabel, :hello_world).get

    saveMovieToLibrary
  end

  def init_nav
    self.title = 'Title Here'

    self.navigationItem.tap do |nav|
      nav.leftBarButtonItem = UIBarButtonItem.alloc.initWithBarButtonSystemItem(UIBarButtonSystemItemAction,
                                                                           target: self, action: :nav_left_button)
      nav.rightBarButtonItem = UIBarButtonItem.alloc.initWithBarButtonSystemItem(UIBarButtonSystemItemRefresh,
                                                                           target: self, action: :nav_right_button)
    end
  end

  def nav_left_button
    puts 'Left button'
  end

  def nav_right_button
    puts 'Right button'
  end

  # Remove if you are only supporting portrait
  def supportedInterfaceOrientations
    UIInterfaceOrientationMaskAll
  end

  # Remove if you are only supporting portrait
  def willAnimateRotationToInterfaceOrientation(orientation, duration: duration)
    rmq.all.reapply_styles
  end

  def saveMovieToLibrary
    path = NSHomeDirectory().stringByAppendingPathComponent("Documents/movie.mp4")
    documentsDirectoryPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, true)[0]

    dirContents = NSFileManager.defaultManager.contentsOfDirectoryAtPath(documentsDirectoryPath, error:nil)
    dirContents.each do |tString|
      if (tString == "movie.mp4")
        NSFileManager.defaultManager.removeItemAtPath("#{documentsDirectoryPath}/#{tString}", error:nil)
      end
    end
    testImageArray = [UIImage.imageNamed("case_1.jpg"), UIImage.imageNamed("case_2.jpg"), UIImage.imageNamed("case_3.jpg"), UIImage.imageNamed("case_4.jpg"), UIImage.imageNamed("case_5.jpg"), UIImage.imageNamed("case_1.jpg"), UIImage.imageNamed("case_2.jpg"), UIImage.imageNamed("case_3.jpg"), UIImage.imageNamed("case_4.jpg"), nil]
    self.writeImageAsMovie(testImageArray, toPath:path, size:CGSizeMake(640, 1136), duration:1)
  end

  def writeImageAsMovie(array, toPath:path, size:size, duration:duration)
    error = nil
    videoWriter = AVAssetWriter.alloc.initWithURL(NSURL.fileURLWithPath(path), fileType:AVFileTypeMPEG4, error:error)

    videoSettings = {AVVideoCodecKey => AVVideoCodecH264, AVVideoWidthKey => size.width, AVVideoHeightKey => size.height}
    writerInput = AVAssetWriterInput.assetWriterInputWithMediaType(AVMediaTypeVideo, outputSettings:videoSettings).retain

    adaptor = AVAssetWriterInputPixelBufferAdaptor.assetWriterInputPixelBufferAdaptorWithAssetWriterInput(writerInput, sourcePixelBufferAttributes:nil)
    
    videoWriter.addInput(writerInput)
    videoWriter.startWriting
    videoWriter.startSessionAtSourceTime(KCMTimeZero)
    buffer = nil
    buffer = pixelBufferFromCGImage(array.objectAtIndex(0).CGImage, size:CGSizeMake(640, 1136))
    # CVPixelBufferPoolCreatePixelBuffer(NULL, adaptor.pixelBufferPool, &buffer)
    # adaptor.appendPixelBuffer(buffer, withPresentationTime:KCMTimeZero)


  end

  def pixelBufferFromCGImage(image, size:imageSize)
    options = {KCVPixelBufferCGImageCompatibilityKey => 1, KCVPixelBufferCGBitmapContextCompatibilityKey => 1}

    pxbuffer = nil
    ap imageSize
    status = CVPixelBufferCreate(KCFAllocatorDefault, imageSize.width, imageSize.height, KCVPixelFormatType_32ARGB, options, pxbuffer)
    ap status
    # CVPixelBufferLockBaseAddress(pxbuffer, 0)
    # pxdata = CVPixelBufferGetBaseAddress(pxbuffer)

    # ap pxdata
  end

end



# EXAMPLE
# //
# //  ViewController.m
# //  VideoFromImage
# //
# //  Created by Lockerios on 11/21/13.
# //  Copyright (c) 2013 Lockerios. All rights reserved.
# //

# #import "ViewController.h"
# #import <AVFoundation/AVFoundation.h>

# @interface ViewController ()

# @end

# @implementation ViewController

# - (CVPixelBufferRef) pixelBufferFromCGImage: (CGImageRef) image  size:(CGSize)imageSize
# {
#     NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
#                              [NSNumber numberWithBool:YES], kCVPixelBufferCGImageCompatibilityKey,
#                              [NSNumber numberWithBool:YES], kCVPixelBufferCGBitmapContextCompatibilityKey,
#                              nil];
#     CVPixelBufferRef pxbuffer = NULL;
#     CVReturn status = CVPixelBufferCreate(kCFAllocatorDefault, imageSize.width,
#                                           imageSize.height, kCVPixelFormatType_32ARGB, (CFDictionaryRef) options,
#                                           &pxbuffer);
#     NSParameterAssert(status == kCVReturnSuccess && pxbuffer != NULL);
    
#     CVPixelBufferLockBaseAddress(pxbuffer, 0);
#     void *pxdata = CVPixelBufferGetBaseAddress(pxbuffer);
#     NSParameterAssert(pxdata != NULL);
    
#     CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();
#     CGContextRef context = CGBitmapContextCreate(pxdata, imageSize.width,
#                                                  imageSize.height, 8, 4*imageSize.width, rgbColorSpace,
#                                                  kCGImageAlphaNoneSkipFirst);
#     NSParameterAssert(context);
#     //    CGContextConcatCTM(context, frameTransform);
#     CGContextDrawImage(context, CGRectMake(0, 0, CGImageGetWidth(image),
#                                            CGImageGetHeight(image)), image);
#     CGColorSpaceRelease(rgbColorSpace);
#     CGContextRelease(context);
    
#     CVPixelBufferUnlockBaseAddress(pxbuffer, 0);
    
#     return pxbuffer;
# }

# -(void)writeImageAsMovie:(NSArray *)array toPath:(NSString*)path size:(CGSize)size duration:(int)duration
# {
#     NSError *error = nil;
#     AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:[NSURL fileURLWithPath:path]
#                                                            fileType:AVFileTypeMPEG4
#                                                               error:&error];
#     NSParameterAssert(videoWriter);
#     NSDictionary *videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:
#                                    AVVideoCodecH264, AVVideoCodecKey,
#                                    [NSNumber numberWithInt:size.width], AVVideoWidthKey,
#                                    [NSNumber numberWithInt:size.height], AVVideoHeightKey,
#                                    nil];
#     AVAssetWriterInput* writerInput = [[AVAssetWriterInput assetWriterInputWithMediaType:AVMediaTypeVideo
#                                                                           outputSettings:videoSettings] retain];
#     AVAssetWriterInputPixelBufferAdaptor *adaptor = [AVAssetWriterInputPixelBufferAdaptor assetWriterInputPixelBufferAdaptorWithAssetWriterInput:writerInput
#                                                                                                                      sourcePixelBufferAttributes:nil];
#     NSParameterAssert(writerInput);
#     NSParameterAssert([videoWriter canAddInput:writerInput]);
#     [videoWriter addInput:writerInput];
#     //Start a session:
#     [videoWriter startWriting];
#     [videoWriter startSessionAtSourceTime:kCMTimeZero];
#     CVPixelBufferRef buffer = NULL;
#     buffer = [self pixelBufferFromCGImage:[[array objectAtIndex:0] CGImage] size:CGSizeMake(640, 1136)];
#     CVPixelBufferPoolCreatePixelBuffer (NULL, adaptor.pixelBufferPool, &buffer);
#     [adaptor appendPixelBuffer:buffer withPresentationTime:kCMTimeZero];
    
#     int i = 1;
#     while (1)
#     {
#     if(writerInput.readyForMoreMediaData){
#       CMTime frameTime = CMTimeMake(1, 10);
#       CMTime lastTime=CMTimeMake(i, 10);
#       CMTime presentTime=CMTimeAdd(lastTime, frameTime);
#       if (i >= [array count])
#       {
#         buffer = NULL;
#       }
#       else
#       {
#         buffer = [self pixelBufferFromCGImage:[[array objectAtIndex:i] CGImage] size:CGSizeMake(640, 1136)];
#       }
#       if (buffer)
#       {
#         // append buffer
#         [adaptor appendPixelBuffer:buffer withPresentationTime:presentTime];
#         i++;
#       }
#       else
#       {
#         //Finish the session:
#         [writerInput markAsFinished];
#                 //If change to fininshWritingWith... Cause Zero bytes file. I'm Trying to fix.
#         [videoWriter finishWriting];
#         CVPixelBufferPoolRelease(adaptor.pixelBufferPool);
#         [videoWriter release];
#         [writerInput release];
#         NSLog (@"Donddde");
#         break;
#       }
#     }
#     }
# }

# - (void)saveMovieToLibrary
# {
#     NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"Documents/movie.mp4"]];
#     NSString *documentsDirectoryPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
#     NSArray *dirContents = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:documentsDirectoryPath error:nil];
#     for (NSString *tString in dirContents) {
#         if ([tString isEqualToString:@"movie.mp4"])
#         {
#             //Remove File existed.
#             [[NSFileManager defaultManager]removeItemAtPath:[NSString stringWithFormat:@"%@/%@",documentsDirectoryPath,tString] error:nil];
#         }
#     }
#     NSArray* testImageArray = [[NSArray alloc] initWithObjects:
#                       [UIImage imageNamed:@"case_1.jpg"],
#                       [UIImage imageNamed:@"case_2.jpg"],
#                       [UIImage imageNamed:@"case_3.jpg"],
#                       [UIImage imageNamed:@"case_4.jpg"],
#                       [UIImage imageNamed:@"case_5.jpg"],
#                       [UIImage imageNamed:@"case_1.jpg"],
#                       [UIImage imageNamed:@"case_2.jpg"],
#                       [UIImage imageNamed:@"case_3.jpg"],
#                       [UIImage imageNamed:@"case_4.jpg"], nil];
    
#     [self writeImageAsMovie:testImageArray toPath:path size:CGSizeMake(640, 1136) duration:1];
# }

# - (void)viewDidLoad
# {
#     [super viewDidLoad];
    
#     [self saveMovieToLibrary];
# }

# - (void)didReceiveMemoryWarning
# {
#     [super didReceiveMemoryWarning];
#     // Dispose of any resources that can be recreated.
# }

# @end