avplayerlayer

问题 I'm working with AVPlayer to show the playing video using a URL in it. There are 2 parts to it: 1. Firstly, I've embedded the AVPlayer to a view's sublayer using AVPlayerLayer , i.e. var player: AVPlayer? func configure() { let urlString = "https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4" if let url = URL(string: urlString) { self.player = AVPlayer(url: url) let playerLayer = AVPlayerLayer(player: self.player) playerLayer.frame = self.view.bounds self.view.layer.addSublayer(playerLayer)

问题 I am working on an application in which I record a video. When recording finished I put a GIF image on it with use of Library. My code for playing video and putting gif image as an overlay self.avPlayer = [AVPlayer playerWithURL:self.urlstring]; self.avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone; AVPlayerLayer *videoLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer]; videoLayer.frame = self.preview_view.bounds; videoLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;

问题 I write custom player from AVPlayer for video playback. According to Apple docs set the video layer: self.player = [IPLPlayer new]; self.player.playerLayer = (AVPlayerLayer *)self.playerView.layer; Where self.playerView is usual class from those docs: @implementation PlayerView + (Class) layerClass { return [AVPlayerLayer class]; } - (AVPlayer *)player { return [(AVPlayerLayer *)[self layer] player]; } - (void)setPlayer:(AVPlayer *) player { [(AVPlayerLayer *) [self layer] setPlayer:player];

问题 I am developing an iOS app for iPad that needs to play videos in some part of the screen. I have several video files that needs to be played after each other in an order that is not given at compile time. It must looks as if it is just one video playing. It is fine that when going from one video to the next that is some delay where the last or first frame of the two videos are shown, but there should be no flickering or white screens with no content. The videos does not contain audio. It is

问题 I am writing an application using Swift to view surveillance cameras via HLS. I have the basic device list working and I am able to segue to the Live view and display the stream however, I need to move the AVPlayerLayer and I am having trouble figuring this out. Here is my current code: let player = AVPlayer(URL: url!) let playerLayer = AVPlayerLayer(player: player) let view = UIView(frame: CGRectMake(0, 0, screenSize.width, screenSize.height)) self.view.layer.borderWidth = 1 self.view.layer

问题 I'm new to Swift and am trying to add a video to the view and then remove it when my "stopScreenSaver" notification is dispatched. All seems to work well except for when I go to remove the video layer (playerLayer.removeFromSuperlayer()). Any guidance would be appreciated. I feel like I'm missing some basic concept here for adding and removing the layer! import UIKit import AVFoundation import QuartzCore import CoreMedia class ViewController: UIViewController { let contentURL = NSBundle

问题 i'm trying to use a AVPlayerLayer as a SCNMaterial to be assigned to a SCNSphere. Based on: https://developer.apple.com/library/mac/samplecode/SceneKit_Slides_WWDC2013/Listings/Scene_Kit_Session_WWDC_2013_Sources_Slides_ASCSlideMaterialLayer_m.html I create a player, create a player layer and have tried with and without a backgroundLayer to assign as material for my SCNSphere Issue is, I get the same result reported here: SCNMaterialProperty not rendering layer Audio plays, video not rendered

问题 I am trying to play a movie at the beginning of my game. I am using AVPlayer to do this. My problem is, when I register a KVO to check the status of my AVPlayer, my game proceeds as usual without waiting for the video to load and finish. As a result, I can only hear the audio from my .mov file and can't see any video (since my game has already started). I would like the video to load and finish before proceeding with the game. Here's the code: @interface RMVideoView : NSView { NSURL*

问题 I implemented a video player function with AVPlayer in Swift 3. Currently, I can play the video well. I would like to add the feature of " Trick Play " with the speed of 2x,3x,4x . However, I didn't find anything googling. Can anyone help me please? 回答1: Try playerViewController.player!.rate = 2 // 3, 4 etc 来源： https://stackoverflow.com/questions/42973856/add-trick-play-feature-with-avplayerviewcontroller-in-swift

问题 I get random crashes (which I can't reproduce on devices I own) in my app with exception: Cannot remove an observer Foundation.NSKeyValueObservation 0xaddress for the key path "readyForDisplay" from AVPlayerLayer 0xaddress because it is not registered as an observer. This happens when I deallocate a UIView which contains AVPlayerLayer. My init: private var playerLayer : AVPlayerLayer { return self.layer as! AVPlayerLayer } init(withURL url : URL) { ... self.asset = AVURLAsset(url: url) self