+(void)trimVideo:(AVURLAsset*)asset needCrop:(BOOL)needCrop andComplete:(void (^) (NSError* error)) complete
{
//[[NSFileManager defaultManager] removeItemAtURL:outputURL error:nil];
// AVURLAsset *asset = [AVURLAsset URLAssetWithURL:videoToTrimURL options:nil];
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:asset presetName:AVAssetExportPresetMediumQuality];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *outputURL = paths[0];
NSFileManager *manager = [NSFileManager defaultManager];
[manager createDirectoryAtPath:outputURL withIntermediateDirectories:YES attributes:nil error:nil];
outputURL = [outputURL stringByAppendingPathComponent:@"Movie.mp4"];
// Remove Existing File
[manager removeItemAtPath:outputURL error:nil];
exportSession.outputURL = [NSURL fileURLWithPath:outputURL];
exportSession.shouldOptimizeForNetworkUse = YES;
exportSession.outputFileType = AVFileTypeQuickTimeMovie;
exportSession.videoComposition = [self getVideoComposition:asset];
if (needCrop) {
CMTime start = CMTimeMakeWithSeconds(0.0, 600);
CMTime duration = CMTimeMakeWithSeconds(15.0, 600);
CMTimeRange range = CMTimeRangeMake(start, duration);
exportSession.timeRange = range;
}
[exportSession exportAsynchronouslyWithCompletionHandler:^(void)
{
switch (exportSession.status) {
case AVAssetExportSessionStatusCompleted:
// [self writeVideoToPhotoLibrary:[NSURL fileURLWithPath:outputURL]];
{
NSLog(@"Export Complete %d %@", exportSession.status, exportSession.error);
complete(nil);
}
break;
case AVAssetExportSessionStatusFailed:
{
NSLog(@"Export Complete %d %@", exportSession.status, exportSession.error);
complete(exportSession.error);
}
break;
case AVAssetExportSessionStatusCancelled:
{
NSLog(@"Failed:%@",exportSession.error);
complete(exportSession.error);
}
break;
default:
break;
}
//[exportSession release];
}];
}
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