使用MPMoviePlayerViewController的时髦错误

时间：2011-10-26 21:25:40

标签： ios cocoa-touch mpmovieplayercontroller

有谁知道这些错误是什么意思？当我点击一个按钮播放视频时，我就明白这一点（通过互联网按需下载）。

我遇到的问题是我的视频播放没有音频。事实上，音量栏会在负载时完全消失。

我觉得它与这些错误有关。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

3 个答案:

答案 0 :(得分：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，因此某些情况下音频或视频的类型将无法在模拟器中播放，因为它实际上并未实现设备上的完整软件堆栈。在这种情况下，看起来您的视频使用的HDA音频的驱动程序在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。因此，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，您曾经无法在模拟器中播放YouTube视频，因为它们可以在设备上正常运行。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，可以转换Mac的功能以及模拟器想要访问它们的方式。

答案 1 :(得分：0)

您是否在项目的构建设置中添加了上述框架？

对我来说，框架的引用似乎没有存在于二进制文件中。

要添加所需的框架，您可以执行以下步骤：

  1. 在Xcode中打开您的项目
  2. 单击项目导航器中的根项目
  3. 选择目标
  4. 转到Build Phases并展开Link with libraries
  5. 确保此处列出了上述框架。
  6. 如果它们不存在，请添加它们并重建您的应用程序

    7. 我希望这会有所帮助

答案 2 :(得分：0)

音量条应该消失 - 它的行为就好像它连接到一个粗略的线路停靠设备。确保您的计算机声音也已开启......

至于错误 - 我的应用程序有类似的问题，尽管遇到类似的错误，但没有任何实际问题。经验法则是，如果它在设备上运行，那你很好。

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