这是堆栈跟踪。
编辑：经过多一点调试后，我又回到了可能与垃圾收集器相关的结论。如果我将以下行放在转换视频的行之前，我会看到这些错误的数量急剧增加......
[[NSGarbageCollector defaultCollector] collectExhaustively];
NSInvalidArgumentException
-[NSPathStore2 objectForKey:]: unrecognized selector sent to instance 0x1073570
(
0 CoreFoundation 0x92fc16ba __raiseError + 410
1 libobjc.A.dylib 0x901b4509 objc_exception_throw + 56
2 CoreFoundation 0x9300e90b -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x92f67c36 ___forwarding___ + 950
4 CoreFoundation 0x92f67802 _CF_forwarding_prep_0 + 50
5 QTKit 0x903d3280 MovieProgressProc + 62
6 QuickTime 0x95a66062 convertFileProgress + 212
7 QuickTime3GPP 0x1e7bcaa2 Spit3GP2_Progress + 180
8 QuickTime3GPP 0x1e7c01d8 Spit3GP2_FromProceduresToDataRef + 3438
9 CarbonCore 0x90b0d054 _ZL38CallComponentFunctionCommonWithStoragePPcP19ComponentParametersPFlvEm + 54
10 QuickTime3GPP 0x1e7be33d Spit3GP2_ComponentDispatch + 129
11 CarbonCore 0x90b057c9 CallComponentDispatch + 29
12 QuickTime 0x95befb97 MovieExportFromProceduresToDataRef + 49
13 QuickTime3GPP 0x1e7bdf84 Spit3GP2_ToDataRef + 1987
14 CarbonCore 0x90b1865d callComponentStorage_4444444 + 63
15 CarbonCore 0x90b0d054 _ZL38CallComponentFunctionCommonWithStoragePPcP19ComponentParametersPFlvEm + 54
16 QuickTime3GPP 0x1e7be33d Spit3GP2_ComponentDispatch + 129
17 CarbonCore 0x90b057c9 CallComponentDispatch + 29
18 QuickTime 0x95befbe2 MovieExportToDataRef + 73
19 QuickTime 0x95a6e9bb ConvertMovieToDataRef_priv + 1690
20 QuickTime 0x95bdc591 ConvertMovieToDataRef + 71
21 QTKit 0x903e0954 -[QTMovie_QuickTime writeToDataReference:withAttributes:error:] + 2692
22 QTKit 0x903c5110 -[QTMovie_QuickTime writeToFile:withAttributes:error:] + 111
23 Mevee 0x0005871d -[ConversionQueue convertVideo:] + 509
24 Mevee 0x00058341 -[ConversionQueue startConvertingItems] + 145
25 Foundation 0x9520fbf0 -[NSThread main] + 45
26 Foundation 0x9520fba0 __NSThread__main__ + 1499
27 libSystem.B.dylib 0x9475a85d _pthread_start + 345
28 libSystem.B.dylib 0x9475a6e2 thread_start + 34
)
- (id) init
{
if(!(self = [super init])) return self;
convertingIndex = 0;
conversionPaths = [[NSMutableArray alloc] init];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/2 Fast 2 Furious/2 Fast 2 Furious.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/101 Dalmations/101 Dalmations.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/300/300.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/1408/1408.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/A Few Good Men/A Few Good Men.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/A Goofy Movie/A Goofy Movie.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/A Single Man/A Single Man.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/A View to a Kill/A View to a Kill.mp4"];
[conversionPaths addObject:@"/Users/Morgan/Desktop/Convertable Media/Movies/Across the Universe/Across the Universe.mp4"];
backgroundThread = [[NSThread alloc] initWithTarget:self selector:@selector(startConvertingItems) object:nil];
[backgroundThread start];
return self;
}
- (void) startProcessingQueue
{
}
- (void) startConvertingItems
{
NSInteger iterations = 0;
while(iterations < 100)
{
NSString* nextPath = [conversionPaths objectAtIndex:convertingIndex];
NSLog(@"ITERATION %d", iterations);
[self convertVideo:nextPath];
convertingIndex += 1;
if(convertingIndex >= [conversionPaths count])
convertingIndex = 0;
iterations += 1;
}
}
- (void) openMovieOnMainThread:(NSString*)path
{
NSError* error = nil;
movie = [[QTMovie alloc] initWithFile:path error:&error];
if(movie == nil || error != nil || ![movie detachFromCurrentThread])
movie = nil;
}
- (void) closeMovieOnMainThread
{
//[movie attachToCurrentThread];
//[movie release];
}
- (BOOL) convertVideo: (NSString*)path
{
[self performSelectorOnMainThread:@selector(openMovieOnMainThread:) withObject:path waitUntilDone:YES];
if(movie == nil) {
NSLog(@"ERROR OPENING MOVIE");
return NO;
}
[QTMovie enterQTKitOnThreadDisablingThreadSafetyProtection];
[movie attachToCurrentThread];
[movie setDelegate:self];
NSString* tempItemPath = @"/Users/Morgan/Desktop/test.mp4";
NSDictionary *attrs = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], QTMovieExport,
[NSNumber numberWithLong:'3gpp'], QTMovieExportType,
nil];
NSError* error = nil;
if(![movie writeToFile:tempItemPath withAttributes:attrs error:&error]) {
NSLog(@"ERROR CONVERTING MOVIE");
return NO;
}
[movie invalidate];
[movie detachFromCurrentThread];
[QTMovie exitQTKitOnThread];
[self performSelectorOnMainThread:@selector(closeMovieOnMainThread) withObject:nil waitUntilDone:YES];
return YES;
}
- (BOOL)movie:(QTMovie *)aMovie shouldContinueOperation:(NSString *)op withPhase:(QTMovieOperationPhase)phase atPercent:(NSNumber *)percent withAttributes:(NSDictionary *)attributes
{
switch (phase)
{
case QTMovieOperationBeginPhase:
NSLog(@"Conversion started");
break;
case QTMovieOperationUpdatePercentPhase:
NSLog(@"Conversion progress: %f", [percent floatValue]);
break;
case QTMovieOperationEndPhase:
NSLog(@"Conversion finished.");
break;
}
return YES;
}
答案 0 :(得分：1)