相关疑难解决方法(0)

我有一个严重的问题:我有NSArray几个UIImage对象.我现在想做的是从那些创作电影UIImages.但我不知道该怎么做.

我希望有人可以帮助我或给我一个代码片段,它可以做我喜欢的事情.

编辑:供将来参考 - 应用解决方案后,如果视频看起来扭曲,请确保您捕获的图像/区域的宽度是16的倍数.在这里经过几个小时的努力后发现:
为什么我的UIImages电影得到了扭曲？

这是完整的解决方案(只需确保宽度是16的倍数)
http://codethink.no-ip.org/wordpress/archives/673

我必须从我的iPhone应用程序导出一部电影,其中包含来自NSArray的UIImage,并添加一些必须在预先指定的时间开始的.caf格式的音频文件.现在我已经能够使用AVAssetWriter导出包含图像的视频部分(经历就这个问题和其他网站的许多问题和答案后),但不能似乎找到一个方法来添加音频文件来完成电影.

这是我到目前为止所得到的

-(void) writeImagesToMovieAtPath:(NSString *) path withSize:(CGSize) size
{
    NSLog(@"Write Started");

    NSError *error = nil;

    AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:
                              [NSURL fileURLWithPath:path] fileType:AVFileTypeQuickTimeMovie
                                                          error:&error];    
    NSParameterAssert(videoWriter);

    NSDictionary *videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:
                               AVVideoCodecH264, AVVideoCodecKey,
                               [NSNumber numberWithInt:size.width], AVVideoWidthKey,
                               [NSNumber numberWithInt:size.height], AVVideoHeightKey,
                               nil];

    AVAssetWriterInput* videoWriterInput = [[AVAssetWriterInput
                                    assetWriterInputWithMediaType:AVMediaTypeVideo
                                    outputSettings:videoSettings] retain];


    AVAssetWriterInputPixelBufferAdaptor *adaptor = [AVAssetWriterInputPixelBufferAdaptor
                                            assetWriterInputPixelBufferAdaptorWithAssetWriterInput:videoWriterInput
                                                 sourcePixelBufferAttributes:nil];

    NSParameterAssert(videoWriterInput);
    NSParameterAssert([videoWriter canAddInput:videoWriterInput]);
    videoWriterInput.expectsMediaDataInRealTime = YES;
    [videoWriter addInput:videoWriterInput];

    //Start a session:
    [videoWriter startWriting];
    [videoWriter startSessionAtSourceTime:kCMTimeZero];

    CVPixelBufferRef buffer = NULL;

    //convert uiimage to CGImage.

    int frameCount = 0; …

我想从图像创建一个视频.
所以,我是参考链接的来源.
链接:CVPixelBufferPool错误(kCVReturnInvalidArgument/-6661)

func writeAnimationToMovie(path: String, size: CGSize, animation: Animation) -> Bool {   
    var error: NSError?
    let writer = AVAssetWriter(URL: NSURL(fileURLWithPath: path), fileType: AVFileTypeQuickTimeMovie, error: &error)

    let videoSettings = [AVVideoCodecKey: AVVideoCodecH264, AVVideoWidthKey: size.width, AVVideoHeightKey: size.height]

    let input = AVAssetWriterInput(mediaType: AVMediaTypeVideo, outputSettings: videoSettings)
    let pixelBufferAdaptor = AVAssetWriterInputPixelBufferAdaptor(assetWriterInput: input, sourcePixelBufferAttributes: nil)
    input.expectsMediaDataInRealTime = true
    writer.addInput(input)

    writer.startWriting()
    writer.startSessionAtSourceTime(kCMTimeZero)

    var buffer: CVPixelBufferRef

    var frameCount = 0
    for frame in animation.frames {
        let rect = CGRectMake(0, 0, size.width, size.height)
        let rectPtr = UnsafeMutablePointer<CGRect>.alloc(1)
        rectPtr.memory …