我试过了下面的代码。iOS 6问题将MPMediaItem转换为NSData
-(void)mediaItemToData : (MPMediaItem *) curItem
{
NSURL *url = [curItem valueForProperty: MPMediaItemPropertyAssetURL];
AVURLAsset *songAsset = [AVURLAsset URLAssetWithURL: url options:nil];
AVAssetExportSession *exporter = [[AVAssetExportSession alloc] initWithAsset: songAsset
presetName:AVAssetExportPresetPassthrough];
exporter.outputFileType = @"public.mpeg-4";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString * myDocumentsDirectory = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
NSString *exportFile = [myDocumentsDirectory stringByAppendingPathComponent:
@"exported.mp4"];
NSURL *exportURL = [NSURL fileURLWithPath:exportFile];
exporter.outputURL = exportURL;
// do the export
// (completion handler block omitted)
[exporter exportAsynchronouslyWithCompletionHandler:
^{
NSData *data = [NSData dataWithContentsOfFile: [myDocumentsDirectory
stringByAppendingPathComponent: @"exported.mp4"]];
DLog(@"Data %@",data);
}];
}
这个代码在iOS 5中工作正常,但现在的iOS 6,工作
任何变更,iOS6的在AVAssetExportPresetPassthrough
。 ???
的看看这个链接不知道可能会有所帮助http://www.subfurther.com/blog/2010/07/19/from-iphone-media-library-to-pcm-samples-in-dozens-of-confounding-potentially-lossy-steps/ – Leena
@Leena谢谢ÿ我们的链接有助于解决此问题。 – Hitarth