我正在尝试为Mac OS 10.14.5 Xcode 10.2.1 swift 5.0.1创建一个简单的AVBasicPlayBack。我用AVPlayer抛出了一些错误。 Mac OS Development的新手无法找出问题所在。我已经在线检查了很多文档。
我在下面显示的info.plist文件中添加了NSAppTransportSecurity。
info.plist文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIconFile</key>
<string></string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSMinimumSystemVersion</key>
<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
<key>NSHumanReadableCopyright</key>
<string>Copyright © 2019 Personal. All rights reserved.</string>
<key>NSMainStoryboardFile</key>
<string>Main</string>
<key>NSPrincipalClass</key>
<string>NSApplication</string>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>devimages-cdn.apple.com</key>
<dict/>
<key>NSExceptionRequiresForwardSecrecy</key>
<false/>
</dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
</dict>
</plist>
ViewController.swift
import Cocoa
import AVKit
class ViewController: NSViewController {
@IBOutlet weak var playerView: AVPlayerView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
guard let url = URL(string: "https://devimages-cdn.apple.com/samplecode/avfoundationMedia/AVFoundationQueuePlayer_HLS2/master.m3u8")
else {
return
}
// Create a new AVPlayer and associate it with the player view
//let player = AVPlayer(url: url)
//playerView.player = player
let avAsset = AVURLAsset(url: url, options: nil)
let playerItem = AVPlayerItem(asset: avAsset)
let videoPlayer = AVPlayer(playerItem: playerItem)
playerView.player = videoPlayer
videoPlayer.play()
}
override var representedObject: Any? {
didSet {
// Update the view, if already loaded.
}
}
}
我遇到以下错误
2019-06-23 14:03:10.958123-0700 AVBasicPlayback[27278:6522581] [] nw_dictionary_set_value called with null dictionary
2019-06-23 14:03:10.958154-0700 AVBasicPlayback[27278:6522581] [] __nwlog_err_simulate_crash simulate crash failed "nw_dictionary_set_value called with null dictionary"
2019-06-23 14:03:10.958334-0700 AVBasicPlayback[27278:6522581] [] nw_dictionary_set_value called with null dictionary, dumping backtrace:
[x86_64] libnetcore-1229.250.15
0 libnetwork.dylib 0x00007fff747f8c88 __nw_create_backtrace_string + 120
1 libnetwork.dylib 0x00007fff7454cb09 nw_dictionary_set_value + 265
2 libnetwork.dylib 0x00007fff745e5bce nw_path_evaluator_cancel + 654
3 MediaToolbox 0x00007fff4e8ca975 FigMetadataReaderCreateForBoxedMetadata + 10998
4 MediaToolbox 0x00007fff4ea170f3 FigBytePumpCreateForHTTPChunk + 73903
5 MediaToolbox 0x00007fff4ea06752 FigBytePumpCreateForHTTPChunk + 5902
6 libdispatch.dylib 0x000000010034bf1b _dispatch_client_callout + 8
7 libdispatch.dylib 0x0000000100354067 _dispatch_lane_serial_drain + 773
8 libdispatch.dylib 0x0000000100354f4e _dispatch_lane_invoke + 493
9 libdispatch.dylib 0x000000010035e824 _dispatch_root_queue_drain + 334
10 libdispatch.dylib 0x000000010035e60b _dispatch_worker_thread + 271
11 libsystem_pthread.dylib 0x00000001003c5dc3 _pthread_body + 126
12 libsystem_pthread.dylib 0x00000001003c8e8d _pthread_start + 66
13 libsystem_pthread.dylib 0x00000001003c4e11 thread_start + 13
2019-06-23 14:03:10.964828-0700 AVBasicPlayback[27278:6522533] startConfigurationWithCompletionHandler: Failed to get remote object proxy: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.rtcreportingd" UserInfo={NSDebugDescription=connection to service named com.apple.rtcreportingd}
2019-06-23 14:03:10.973122-0700 AVBasicPlayback[27278:6522533] startConfigurationWithCompletionHandler: Failed to get remote object proxy: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.rtcreportingd" UserInfo={NSDebugDescription=connection to service named com.apple.rtcreportingd}
2019-06-23 14:03:10.982169-0700 AVBasicPlayback[27278:6522553] Received XPC error Connection invalid for message type 3 kCFNetworkAgentXPCMessageTypePACQuery
2019-06-23 14:03:10.982216-0700 AVBasicPlayback[27278:6522553] PAC result block not invoked
2019-06-23 14:03:10.982273-0700 AVBasicPlayback[27278:6522553] [] nw_proxy_resolver_create_parsed_array PAC evaluation error: kCFErrorDomainCFNetwork: 308
2019-06-23 14:03:10.984342-0700 AVBasicPlayback[27278:6522553] dnssd_clientstub ConnectToServer: connect()-> No of tries: 1
2019-06-23 14:03:11.988908-0700 AVBasicPlayback[27278:6522553] dnssd_clientstub ConnectToServer: connect()-> No of tries: 2
2019-06-23 14:03:12.990000-0700 AVBasicPlayback[27278:6522553] dnssd_clientstub ConnectToServer: connect()-> No of tries: 3
2019-06-23 14:03:13.995302-0700 AVBasicPlayback[27278:6522553] dnssd_clientstub ConnectToServer: connect() failed path:/var/run/mDNSResponder Socket:11 Err:-1 Errno:1 Operation not permitted
2019-06-23 14:03:13.996203-0700 AVBasicPlayback[27278:6522553] [] nw_resolver_create_dns_service_locked [C1.1] DNSServiceCreateDelegateConnection failed: ServiceNotRunning(-65563)
2019-06-23 14:03:13.997244-0700 AVBasicPlayback[27278:6522553] TIC TCP Conn Failed [1:0x600003716280]: 10:-72000 Err(-65563)
2019-06-23 14:03:13.998574-0700 AVBasicPlayback[27278:6522520] Task <B5B5187F-14BA-498B-91F3-630EE49FBFC0>.<1> HTTP load failed (error code: -1003 [10:-72000])
2019-06-23 14:03:13.998782-0700 AVBasicPlayback[27278:6522520] Task <B5B5187F-14BA-498B-91F3-630EE49FBFC0>.<1> finished with error - code: -1003
2019-06-23 14:03:14.005116-0700 AVBasicPlayback[27278:6522581] Task <B5B5187F-14BA-498B-91F3-630EE49FBFC0>.<1> load failed with error Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified hostname could not be found." UserInfo={_kCFStreamErrorCodeKey=-72000, NSUnderlyingError=0x600000cdc270 {Error Domain=kCFErrorDomainCFNetwork Code=-1003 "(null)" UserInfo={_kCFStreamErrorCodeKey=-72000, _kCFStreamErrorDomainKey=10}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <B5B5187F-14BA-498B-91F3-630EE49FBFC0>.<1>, _NSURLErrorRelatedURLSessionTaskErrorKey=(
"LocalDataTask <B5B5187F-14BA-498B-91F3-630EE49FBFC0>.<1>"
), NSLocalizedDescription=A server with the specified hostname could not be found., NSErrorFailingURLStringKey=https://devimages-cdn.apple.com/samplecode/avfoundationMedia/AVFoundationQueuePlayer_HLS2/master.m3u8, NSErrorFailingURLKey=https://devimages-cdn.apple.com/samplecode/avfoundationMedia/AVFoundationQueuePlayer_HLS2/master.m3u8, _kCFStreamErrorDomainKey=10} [-1003]
2019-06-23 14:03:14.007457-0700 AVBasicPlayback[27278:6522520] sendMessageWithDictionary: Failed to get remote object proxy: Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.rtcreportingd" UserInfo={NSDebugDescription=connection to service named com.apple.rtcreportingd}
答案 0 :(得分：0)
在“应用功能”中选中“外向连接（客户端）”复选框。这开始显示视频，但仍然存在一些错误。找到剩余错误的解决方案后，我将更新答案。有关XPC的错误。