我正在使用EZAudio库进行Wave表格，当玩家尝试播放音频时应用程序崩溃并将错误显示为日志
错误：无法从文件波形（-50）
中读取音频数据
我的代码已经发出，
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//----------------------- Initialization ----------------------
-(void)initializesEZAudio { AVAudioSession *session = [AVAudioSession sharedInstance]; NSError *error; [session setCategory:AVAudioSessionCategoryPlayback error:&error]; if (error) { NSLog(@"Error setting up audio session category: %@", error.localizedDescription); } [session setActive:YES error:&error]; if (error) { NSLog(@"Error setting up audio session active: %@", error.localizedDescription); } // Customizing the audio plot's look self.audioPlot.backgroundColor = [UIColor clearColor]; self.audioPlot.color = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0]; self.audioPlot.plotType = EZPlotTypeBuffer; self.audioPlot.shouldFill = YES; self.audioPlot.shouldMirror = YES; NSLog(@"outputs: %@", [EZAudioDevice outputDevices]); self.player = [EZAudioPlayer audioPlayerWithDelegate:self]; [session overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:&error]; if (error) { NSLog(@"Error overriding output to the speaker: %@", error.localizedDescription); } // // Listen for EZAudioPlayer notifications // [self setupNotificationsForPlay]; //[self setupNotificationsForRecord]; /* Try opening the sample file */ //[self.microphone startFetchingAudio]; } - (void) output:(EZOutput *)output playedAudio:(float **)buffer withBufferSize:(UInt32)bufferSize withNumberOfChannels:(UInt32)numberOfChannels { __weak typeof (self) weakSelf = self; dispatch_async(dispatch_get_main_queue(), ^{ // Update plot, buffer[0] = left channel, buffer[1] = right channel }); } - (void)setupNotificationsForPlay { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioPlayerDidChangeAudioFile:) name:EZAudioPlayerDidChangeAudioFileNotification object:self.player]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioPlayerDidChangeOutputDevice:) name:EZAudioPlayerDidChangeOutputDeviceNotification object:self.player]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioPlayerDidChangePlayState:) name:EZAudioPlayerDidChangePlayStateNotification object:self.player]; }
//------------------- Delegates & Notification ------------------
// ----------------播放方法-------------------
- (void)audioPlayerDidChangeAudioFile:(NSNotification *)notification
{
EZAudioPlayer *player = [notification object];
NSLog(@"Player changed audio file: %@", [player audioFile]);
}
//------------------------------------------------------------------------------
- (void)audioPlayerDidChangeOutputDevice:(NSNotification *)notification
{
EZAudioPlayer *player = [notification object];
NSLog(@"Player changed output device: %@", [player device]);
}
- (void)audioPlayerDidChangePlayState:(NSNotification *)notification
{
EZAudioPlayer *player = [notification object];
NSLog(@"Player change play state, isPlaying: %i", [player isPlaying]);
}
- (void)openFileWithFilePathURL:(NSURL *)filePathURL
{
_audioFile = [EZAudioFile audioFileWithURL:filePathURL];
// // Plot the whole waveform
_audioPlot.plotType = EZPlotTypeBuffer;
_audioPlot.shouldFill = YES;
_audioPlot.shouldMirror = YES;
__weak typeof (self) weakSelf = self;
[self.audioFile getWaveformDataWithCompletionBlock:^(float **waveformData,
int length)
{
[weakSelf.audioPlot updateBuffer:waveformData[0]
withBufferSize:length];
}];
// Play the audio file
[_player setAudioFile:_audioFile];
}
- (void) audioPlayer:(EZAudioPlayer *)audioPlayer
playedAudio:(float **)buffer
withBufferSize:(UInt32)bufferSize
withNumberOfChannels:(UInt32)numberOfChannels
inAudioFile:(EZAudioFile *)audioFile
{
__weak typeof (self) weakSelf = self;
dispatch_async(dispatch_get_main_queue(), ^{
[weakSelf.audioPlot updateBuffer:buffer[0]
withBufferSize:bufferSize];
});
}
- (void)drawBufferPlot
{
self.audioPlot.plotType = EZPlotTypeBuffer;
self.audioPlot.shouldMirror = NO;
self.audioPlot.shouldFill = NO;
}
//------------------------------------------------------------------------------
- (void)drawRollingPlot
{
self.audioPlot.plotType = EZPlotTypeRolling;
self.audioPlot.shouldFill = YES;
self.audioPlot.shouldMirror = YES;
}
//---------------- Implmentation ------------------
- (IBAction)btn_record_activities:(id)c {
if (isPlayable) {
if ([state isEqualToString:@"IDLE"]) {
state=[NSMutableString stringWithFormat:@"RECORDING"];
[_btn_record_activities setImage:[UIImage imageNamed:@"btn_recording.png"] forState:UIControlStateNormal];
[_view_state setBackgroundColor:[UIColor redColor]];
[_btn_state setImage:[UIImage imageNamed:@"state_recording_btn.png"] forState:UIControlStateNormal];
[self performSelectorOnMainThread:@selector(setUpAudioRecorder) withObject:nil waitUntilDone:YES];
recordingTimer= [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(changeAudioProgress) userInfo:nil repeats:YES];
NSLog(@"recordingTimer %@",recordingTimer);
}
else if ([state isEqualToString:@"RECORDING"]) {
_lbl_public.hidden=NO;
_switch_public.hidden=NO;
_btn_done.userInteractionEnabled =YES;
state=[NSMutableString stringWithFormat:@"RECORDED"];
[_btn_record_activities setImage:[UIImage imageNamed:@"btn_recorded.png"] forState:UIControlStateNormal];
[_view_state setBackgroundColor:[UIColor whiteColor]];
[_btn_state setImage:[UIImage imageNamed:@"state_redo_btn.png"] forState:UIControlStateNormal];
[audioPlayer_ofstate stop];
[audioRecorder stop];
// [self playWave];
// [self.player pause];
for (int k=0; k<[arr_player_objects count]; k++) {
[[arr_player_objects objectAtIndex:k] stop];
}
}
else if ([state isEqualToString:@"RECORDED"]) {
state=[NSMutableString stringWithFormat:@"PLAYING"];
[_btn_record_activities setImage:[UIImage imageNamed:@"btn_playing.png"] forState:UIControlStateNormal];
[_view_state setBackgroundColor:[UIColor whiteColor]];
[_btn_state setImage:[UIImage imageNamed:@"new_state_listning_btn.png"] forState:UIControlStateNormal];
//----------loading files to player for playing--------//
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSURL *url = [NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/sounds.wav", documentsDirectory]];
//-------------------* Pass URL as Parameter *------------------
NSLog(@"kAudioFileDefault %@",kAudioFileDefault);
[self openFileWithFilePathURL:[NSURL fileURLWithPath:[NSString stringWithFormat:@"%@/sounds.wav", documentsDirectory]]];
_player.delegate = self;
NSError *error;
audioPlayer_ofstate = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:&error];
audioPlayer_ofstate.numberOfLoops = 0;
audioPlayer_ofstate.delegate=self;
audioPlayer_ofstate.volume=2.0;
[audioPlayer_ofstate prepareToPlay];
NSLog(@"Playing.......");
seconds=0;
minutes=0;
hours=0;
recordingTimer= [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(changeAudioProgress) userInfo:nil repeats:YES];
[self playWave];
[audioPlayer_ofstate play];
}
else if ([state isEqualToString:@"PLAYING"]) {
[recordingTimer invalidate];
seconds=0;
minutes=0;
hours=0;
state=[NSMutableString stringWithFormat:@"RECORDED"];
[_btn_record_activities setImage:[UIImage imageNamed:@"btn_recorded.png"] forState:UIControlStateNormal];
[_view_state setBackgroundColor:[UIColor whiteColor]];
[_btn_state setImage:[UIImage imageNamed:@"state_redo_btn.png"] forState:UIControlStateNormal];
i=0;
[audioPlayer_ofstate stop];
}
else{
seconds=0;
minutes=0;
hours=0;
[recordingTimer invalidate];
// [self initWaveViewMirror];
state=[NSMutableString stringWithFormat:@"IDLE"];
[_btn_record_activities setImage:[UIImage imageNamed:@"btn_ready_to_recording.png"] forState:UIControlStateNormal];
[_view_state setBackgroundColor:[UIColor whiteColor]];
[_btn_state setImage:[UIImage imageNamed:@"state_melody_btn.png"] forState:UIControlStateNormal];
}
}
else{
}
}
请尽可能解决问题。
谢谢＆amp;此致