在随机时间,我的应用程序使用此崩溃日志崩溃。
魔术解决方案将是理想的选择,但是在哪里开始调试的帮助也将有所帮助。该应用程序很难进行调试,因为它是一个基于GPS的应用程序,因此,如果我知道要寻找什么,我可以构建某种压力测试。
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x3789c88f __exceptionPreprocess + 163
1 libobjc.A.dylib 0x31911259 objc_exception_throw + 33
2 AVFoundation 0x309301d9 -[AVPlayer _attachItem:andPerformOperation:withObject:] + 249
3 AVFoundation 0x309300db -[AVPlayer _insertItem:afterItem:] + 27
4 AVFoundation 0x30943b9d -[AVQueuePlayer insertItem:afterItem:] + 137
5 MediaPlayer 0x364a68b7 __block_global_2 + 199
6 libdispatch.dylib 0x34a4bc59 _dispatch_call_block_and_release + 13
7 libdispatch.dylib 0x34a4dee7 _dispatch_main_queue_callback_4CF$VARIANT$mp + 195
8 CoreFoundation 0x3786f2ad __CFRunLoopRun + 1269
9 CoreFoundation 0x377f24a5 CFRunLoopRunSpecific + 301
10 CoreFoundation 0x377f236d CFRunLoopRunInMode + 105
11 GraphicsServices 0x379eb439 GSEventRunModal + 137
12 UIKit 0x309fecd5 UIApplicationMain + 1081
13 App 0x000b5b6f main (main.m:14)
我正在播放各种电影(H.264,1024 x 576,AAC,44100 Hz,Stereo(L r))和声音(MP3和WAV),有时混合。
电影是使用mpmovieplayer播放的,声音使用avaudioplayer。
发生在iOS 5和6上。(iPad)
---编辑:添加代码----
视频在这里准备:
- (void) prepareLayer:(NSDictionary*) aUserInfo{
mMoviePlayerController.contentURL = [aUserInfo objectForKey:@"contenturl"]; // set content
[mMoviePlayerController prepareToPlay];
mMoviePlayerController.shouldAutoplay = NO; // prevent autoplay
mMovieShouldLoop = NO;
[mWrapper setOpacity: 0]; // hide video view (we don't want to see the previous video file)
}
mwrapper用于将视频封装在cocos2d节点
中- (void) showLayer {
[mWrapper setVisible: YES];
[mMoviePlayerController pause];
mRetryCounter = 0;
mMovieStarted = NO;
self.visible = YES;
}
- (void) updateLayer {
if (!self.visible) { return; } // not visible, so not updating (prevents accidental playing of video)
if (mWarningHidden && !mMovieStarted) // if warning is hidden and the movieStarted flag is false
{
if (mMoviePlayerController.playbackState == MPMoviePlaybackStatePlaying) { // if movie did start successfully.
mMovieStarted = YES; // set flag
[mWrapper setOpacity: 255]; // show video view
}
else { // if movie is not playing yet
if (mRetryCounter == 0) { // if this is the first try
[[[CCDirector sharedDirector] openGLView] addGestureRecognizer:mSwipe]; // enable swipe gesture
}
[mMoviePlayerController play]; // start playing
if (mMovieShouldLoop) { // and set loop or not
if (mMoviePlayerController.repeatMode != MPMovieRepeatModeOne) {
mMoviePlayerController.repeatMode = MPMovieRepeatModeOne;
}
} else {
if (mMoviePlayerController.repeatMode != MPMovieRepeatModeNone) {
mMoviePlayerController.repeatMode = MPMovieRepeatModeNone;
}
}
if (mMoviePlayerController.playbackState != MPMoviePlaybackStatePlaying && mRetryCounter > 5) { // if movie not playing and retried for 5 times,
mMoviePlayerController.contentURL = [[NSBundle mainBundle] URLForResource:@"novideo" withExtension:@"m4v"]; // switch to movie of static, indicating something went wrong
[mMoviePlayerController play]; // and play that.
}
if (mRetryCounter > 10) {
mMovieStarted = YES; // if movie still doesn't run after switched to static and retrying that for 5 times, skip it.
NSLog(@"A Movie was skipped after trying to play it for 10 times.");
}
mRetryCounter++; // count retries.
}
}
}
- 编辑:删除了代码段的声音部分,因为它们不是问题的一部分,并且更改标题以反映问题是在mpmovieplayercontroller中,而不是在avplayer中。
我通过使用较低级别的avplayer而不是mpmovieplayer来解决问题。这完全解决了我的问题。