在寻求iOS版（如youtube）时需要显示预览视频缩略图

Question

我需要在AVPlayer中搜索时显示视频预览Thumbanils。就像youtube如何显示它们一样。 （（iOS）]

Answer 1

您应该这样做：

extension AVAsset {

    func getPreviewImage(for timeInSeconds: Int = 0) -> UIImage? {
        let imageGenerator = AVAssetImageGenerator(asset: self)
        imageGenerator.requestedTimeToleranceBefore = .zero
        imageGenerator.requestedTimeToleranceAfter = .zero
        imageGenerator.appliesPreferredTrackTransform = true
        guard let cgImage = try? imageGenerator.copyCGImage(at: CMTime(value: CMTimeValue(timeInSeconds), timescale: 1), actualTime: nil) else { return nil }
        return UIImage(cgImage: cgImage)
    }

}