iOS -如何使用avfoundation播放声音文件
iOS -如何使用avfoundation播放声音文件
提问于 2013-09-11 20:20:10
我想使用av foundation播放一个声音文件(我已经将其拖入xcode并复制到项目中)，但失败了。
我认为这就是它出错的地方，但我不知道除了这种方式之外，我如何用这个声音文件实例化一个AVAsset (当然，它可能是其他出错的地方)。不管怎样，有没有人能帮我一下？谢谢
AVMutableComposition *composition = [AVMutableComposition composition];
CMPersistentTrackID trackID = kCMPersistentTrackID_Invalid;
AVMutableCompositionTrack *compositionTrack = [composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:trackID];
NSURL *url = [[NSURL alloc] initWithString:@"sound.caf"];
AVAsset *songAsset = [AVURLAsset URLAssetWithURL:url options:nil];
AVAssetTrack *assetTrack = [[songAsset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0];
CMTime startTime = CMTimeMakeWithSeconds(0, 1);
CMTime endTime = songAsset.duration;
CMTimeRange tRange = CMTimeRangeMake(startTime, endTime);
NSError *error = nil;
[compositionTrack insertTimeRange:tRange ofTrack:assetTrack atTime:CMTimeMake(0, 44100) error:&error];
AVPlayerItem *playerItem = [AVPlayerItem playerItemWithAsset:composition];
self.player = [[AVPlayer alloc] initWithPlayerItem:playerItem];
[self.player play];回答 2
Stack Overflow用户
发布于 2013-09-11 20:28:41
这段代码可以帮助你：
NSString *soundPath = [[NSBundle mainBundle] pathForResource:@"myfile" ofType:@"wav"];
NSURL *soundURL = [NSURL fileURLWithPath:soundPath];
NSError *error = nil;
AVAudioPlayer *player = [[AVAudioPlayer alloc] initWithContentsOfURL:soundURL error:&error];
if (error) {
NSLog(@"%@",[error localizedDescription]);
}
[player play];Stack Overflow用户
发布于 2013-09-11 20:47:15
尝尝这个
NSString *shutterplayerPath =
[[NSBundle mainBundle] pathForResource:@"shutter" ofType:@"mp3"];
NSString *tickplayerPath =
[[NSBundle mainBundle] pathForResource:@"tick" ofType:@"wav"];
shutterAudioPlayer =
[[AVAudioPlayer alloc] initWithContentsOfURL:[[NSURL alloc]
initFileURLWithPath: shutterplayerPath] error:NULL];
tickAudioPlayer =
[[AVAudioPlayer alloc] initWithContentsOfURL:[[NSURL alloc];
initFileURLWithPath:tickplayerPath] error:NULL];
[shutterAudioPlayer play];
[tickAudioPlayer play];页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/18741040
复制相关文章
相似问题
腾讯云开发者
