使用 MPMoviePlayerViewController 时出现的奇怪错误
有谁知道这些错误是什么意思?当我单击按钮播放视频(通过互联网点播方式下载)时,我会收到此消息。
我遇到的问题是我的视频播放时没有音频。事实上,音频音量条在加载时完全消失。
我感觉这与这些错误有关,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
Does anyone know what these error's mean? I get this when I click a button to play a video (download over internet on demand style).
The problem I'm having is that my video plays with no audio. In fact the audio volume bar goes away completely on load.
I have the feeling it has something to do with these errors heh.
~~>>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
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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,因此在某些情况下,模拟器中无法播放音频或视频类型,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,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 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。
从历史上看,您过去无法在模拟器中播放 YouTube 视频,而它们在设备上可以正常运行。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,可以在 Mac 的功能和模拟器想要访问它们的方式之间进行转换。
HDA is an audio format (http://en.wikipedia.org/wiki/Intel_High_Definition_Audio). Since the Mac uses different audio and video drivers, there have been certain situations where types of audio or video won't play in the simulator since it doesn't actually implement the full software stack found on device. In this case, it looks like the driver for the HDA audio your videos use isn't available on Mac.
This doesn't mean your Mac can't play HDA audio just that the exact plugin that iOS is looking for isn't available. So it just disables the audio portion of the video and goes ahead and plays what it can.
Historically you used to not be able to play YouTube videos in the simulator while they would work fine on device. This again was a case of a missing plugin. Newer versions of the iOS simulator have a stub plugin that translates between the Mac's abilities and how the simulator wants to access them.
您是否在项目的构建设置中添加了提到的框架?
在我看来,这些框架似乎是被引用的,但并不存在于您的二进制文件中。
要添加所需的框架,您可以执行以下步骤:
Build Phases
并展开Link with Libraries
我希望这会有所帮助
Did you add the mentioned frameworks in the build settings of your project?
To me it looks like the frameworks are referenced without being present in your binary.
To add the required frameworks you can do the following steps:
Build Phases
and expandLink with libraries
I hope this helps
音量条应该会消失 - 它的行为就像连接到一个原始的线路输出底座设备一样。确保你的计算机的声音也打开了...
至于错误 - 我的应用程序也有类似的问题,尽管出现了类似的大量错误,但没有任何真正的问题。经验法则是,如果它可以在设备上运行,那就没问题。
The volume bar is supposed to go away - it's behaving as if it's connected to a crude line-out dock device. Make sure your computer's sound is on, too...
As for the errors - I have a similar issue with my app, which despite getting a similar slew of errors, isn't having any real problems. The rule of thumb is that if it works on the device, you're fine.