Errori funky con MPMoviePlayerViewController

Question

Qualcuno sa cosa significano questi errori? Ottengo questo quando clicco su un pulsante per riprodurre un video (scarica su internet su richiesta).

Il problema che sto riscontrando è che il mio video viene riprodotto senza audio. Infatti la barra del volume audio si spegne completamente al caricamento.

Ho la sensazione che abbia qualcosa a che fare con questi errori eh.

~~>>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 

Answer 1

HDA è un formato audio (http://en.wikipedia.org/wiki/Intel_High_Definition_Audio). Poiché il Mac utilizza driver audio e video diversi, ci sono alcune situazioni in cui i tipi di audio o video non vengono riprodotti nel simulatore poiché non implementa effettivamente lo stack software completo trovato sul dispositivo. In questo caso, sembra che il driver per l'audio HDA ​​che i tuoi video utilizzano non sia disponibile su Mac.

Ciò non significa che il tuo Mac non possa riprodurre l'audio HDA ​​solo che il plug-in esatto che iOS sta cercando non è disponibile. Quindi disabilita solo la parte audio del video e procede e suona ciò che può.

Storicamente non si è in grado di riprodurre video di YouTube nel simulatore mentre funzionavano correttamente sul dispositivo. Anche in questo caso si trattava di un plug-in mancante. Le versioni più recenti del simulatore iOS hanno un plugin per stub che si traduce tra le abilità del Mac e il modo in cui il simulatore vuole accedervi.

Answer 2

Hai aggiunto i quadri citati nelle impostazioni di costruzione del tuo progetto?

Per me sembra che i framework siano referenziati senza essere presenti nel file binario.

Per aggiungere i quadri necessari si possono fare le seguenti operazioni:

1. Aprire il progetto in Xcode
2. Clicca l'elemento principale nella navigazione di progetto
3. Seleziona il tuo target
4. Vai a Build Phases ed espandere Link with libraries
5. Assicurarsi che i framework menzionati siano elencati qui.
6. Se non sono presenti aggiungerli e ricostruire la vostra App

Spero che questo aiuta

Answer 3

La barra del volume dovrebbe andare via - è comportarsi come se fosse collegato ad un bacino line-out greggio dispositivo. Assicurati che anche l'audio del tuo computer sia acceso ...

Per quanto riguarda gli errori - Ho un problema simile con la mia app, che nonostante abbia avuto un simile errore di errori, non ha alcun problema reale. La regola generale è che se funziona sul dispositivo, stai bene.