是否可以像在 Netflix 应用程序中那样在滚动视频时间轴时制作预览图像？

Question

是否可以在列出视频时间轴的同时制作 peview 图像，就像在带有 AVPlayer 的 Netflix App 中一样？ exmple here

我发现 mp4 视频有预览 window，但 m3u8 格式没有

func playVideo(cell:  MovieCell) {
    guard let urlVideo = URL(string: cell.movieSrc) else { return }

    // Create an AVPlayer, passing it the HTTP Live Streaming URL.
    let player = AVPlayer(url: urlVideo)

    // Create a new AVPlayerViewController and pass it a reference to the player.
    let controller = AVPlayerViewController()
    controller.player = player

    // Modally present the player and call the player's play() method when complete.
    self.present(controller, animated: true) {
        player.play()
    }
}

Answer 1

这称为 "Trick Play"，必须包含在 HLS 清单中，AVPlayer 才能为您处理。

查看 Trick Play section in HLS Authoring Specification for Apple Devices:

6.1. I-frame playlists (EXT-X-I-FRAME-STREAM-INF) MUST be provided to support scrubbing and scanning UI.

是否可以像在 Netflix 应用程序中那样在滚动视频时间轴时制作预览图像？

Is it possible to make preview image while scroll video timeline like in Netflix app?

avplayer

swift

tvos