使用 MPMoviePlayerViewController 的时髦错误

Posted 2023-03-08

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【中文标题】使用 MPMoviePlayerViewController 的时髦错误【英文标题】：Funky errors using MPMoviePlayerViewController 【发布时间】：2011-10-26 21:25:39 【问题描述】：

有谁知道这些错误是什么意思？当我单击按钮播放视频（通过互联网按需下载）时，我得到了这个。

我遇到的问题是我的视频播放时没有音频。事实上，音量条在加载时会完全消失。

我觉得这与这些错误有关，呵呵。

~~>>SponViewController :sponButton:
2011-10-26 12:52:04.212 myapp[2692:12e03] Error loading /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn:  dlopen(/System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.222 myapp[2692:12e03] Error loading /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn:  dlopen(/System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.258 myapp[2692:12e03] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.269 myapp[2692:12e03] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.293 myapp[2692:12e03] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.307 myapp[2692:12e03] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.340 myapp[2692:12e03] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.351 myapp[2692:12e03] Error loading /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:  dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn, 262): Symbol not found: ___CFObjCIsCollectable
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
 in /System/Library/Frameworks/Security.framework/Versions/A/Security

2011-10-26 12:52:04.442 myapp[2692:12e03] Error loading /System/Library/Extensions/IOBluetoothFamily.kext/Contents/PlugIns/IOBluetoothSCOAudioDriver.kext/Contents/Resources/IOBluetoothSCOAudioDriverPlugIn.bundle/Contents/MacOS/IOBluetoothSCOAudioDriverPlugIn:  dlopen(/System/Library/Extensions/IOBluetoothFamily.kext/Contents/PlugIns/IOBluetoothSCOAudioDriver.kext/Contents/Resources/IOBluetoothSCOAudioDriverPlugIn.bundle/Contents/MacOS/IOBluetoothSCOAudioDriverPlugIn, 262): Symbol not found: _objc_assign_ivar
  Referenced from: /System/Library/Frameworks/IOBluetooth.framework/Versions/A/Frameworks/CoreBluetooth.framework/Versions/A/CoreBluetooth
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/usr/lib/libobjc.A.dylib
 in /System/Library/Frameworks/IOBluetooth.framework/Versions/A/Frameworks/CoreBluetooth.framework/Versions/A/CoreBluetooth

2011-10-26 12:52:04.453 myapp[2692:12e03] Error loading /System/Library/Extensions/IOBluetoothFamily.kext/Contents/PlugIns/IOBluetoothSCOAudioDriver.kext/Contents/Resources/IOBluetoothSCOAudioDriverPlugIn.bundle/Contents/MacOS/IOBluetoothSCOAudioDriverPlugIn:  dlopen(/System/Library/Extensions/IOBluetoothFamily.kext/Contents/PlugIns/IOBluetoothSCOAudioDriver.kext/Contents/Resources/IOBluetoothSCOAudioDriverPlugIn.bundle/Contents/MacOS/IOBluetoothSCOAudioDriverPlugIn, 262): Symbol not found: _objc_assign_ivar
  Referenced from: /System/Library/Frameworks/IOBluetooth.framework/Versions/A/Frameworks/CoreBluetooth.framework/Versions/A/CoreBluetooth
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.0.sdk/usr/lib/libobjc.A.dylib
 in /System/Library/Frameworks/IOBluetooth.framework/Versions/A/Frameworks/CoreBluetooth.framework/Versions/A/CoreBluetooth

【问题讨论】：

你是在设备上运行还是在模拟器上运行时遇到这些错误？我想我在模拟器上看到过这样的错误，但从未在设备上看到过。有趣。不，只是模拟器。我想它们只是代表模拟器中无法重现的功能的框架——看一看，这都是与硬件相关的东西。所以我猜这与你的问题无关...... 【参考方案1】：

HDA 是一种音频格式 (http://en.wikipedia.org/wiki/Intel_High_Definition_Audio)。由于 Mac 使用不同的音频和视频驱动程序，在某些情况下音频或视频类型不会在模拟器中播放，因为它实际上并没有实现设备上的完整软件堆栈。在这种情况下，您的视频使用的 HDA 音频驱动程序似乎在 Mac 上不可用。

这并不意味着您的 Mac 无法播放 HDA 音频只是因为 ios 正在寻找的确切插件不可用。所以它只是禁用视频的音频部分并继续播放它可以播放的内容。

过去，您过去无法在模拟器中播放 YouTube 视频，但它们可以在设备上正常播放。这又是一个缺少插件的情况。较新版本的 iOS 模拟器有一个存根插件，可以在 Mac 的功能和模拟器想要访问它们的方式之间进行转换。

【讨论】：

【参考方案2】：

您是否在项目的构建设置中添加了上述框架？

在我看来，这些框架似乎被引用而没有出现在您的二进制文件中。

要添加所需的框架，您可以执行以下步骤：

Build Phases

Link with libraries

希望对你有帮助

【讨论】：

好吧，我又想了想。如果它可以在设备上运行，那么我的建议可能不是您想要的，因为如果框架没有与您的项目链接，那么它在任何一种情况下都不起作用...... 完全正确。这是在最新的 Xcode 上编译时正在发生的事情。出于某种原因，Sim 没有看到适用于 Sim 的正确框架【参考方案3】：