Question

我想获得专辑图片/歌曲封面。可能吗？我正在使用AVPlayer进行音频流传输，如果歌曲包含它，我需要获得专辑封面。喜欢在iTunes中。

SOLUTION：

UIImage *img = nil;
NSArray *metadata = _avplayer.currentItem.asset.commonMetadata;
for(AVMetadataItem *item in metadata){
    if([item.commonKey isEqualToString:@"artwork"]){
       NSData *data = item.value[@"data"];
       img = [UIImage imageWithData:data];
       return img;
    }
}
return img;

Answer 1

你应该尝试这个，但我使用MPMusicPlayer：

musicPlayer = [MPMusicPlayerController iPodMusicPlayer];
currentItem = [musicPlayer nowPlayingItem];
if (currentItem == nil) {
    //Not playing
}
else 
{
    NSString *name = [currentItem valueForProperty:@"title"];
    int length = [name length];
    if (length > 30) {
        name = [name substringWithRange:NSMakeRange(0, 30)];
        name = [name stringByAppendingString:@"..."];
    }
    NSString *album = [currentItem valueForProperty:@"albumTitle"];
    int lengthAl = [album length];
    if (lengthAl > 30) {
        album = [album substringWithRange:NSMakeRange(0, 30)];
        album = [album stringByAppendingString:@"..."];
    }
    NSString *artist = [currentItem valueForProperty:@"artist"];
    int lengthAr = [artist length];
    if (lengthAr > 30) {
        artist = [artist substringWithRange:NSMakeRange(0, 30)];
        artist = [artist stringByAppendingString:@"..."];
    }
    MPMediaItemArtwork *artworkPrev = [currentItem valueForProperty:@"artwork"];
    if (artworkPrev != nil)
    {
        UIImage *img = [artworkPrev imageWithSize:CGSizeMake(65, 65)];
        UIImageView *imgNew = [[UIImageView alloc] initWithImage:img];
        imgNew.frame = CGRectMake(-15,-20, 65, 65);
    }
}

正如您所看到的，我使用的是NSMakeRange，我只是将它用在我的应用程序中。我希望能帮到你

Answer 2

如果您的文件格式正确，即MP3，您可以将文件的数据加载到ID3标记解析器中。 Here's an example of one.它是为OS X制作的，但它看起来应该很容易移植到iOS。

AVFoundation获得歌曲的专辑形象

2 个答案: