-2
> - (void) createWatermark:(UIImage*)image video:(NSURL*)videoURL
{
if (videoURL == nil)
return;
AppDelegate* appDelegate = [[UIApplication sharedApplication] delegate];
//[appDelegate showLoadingView: YES];
AVURLAsset* videoAsset = [[AVURLAsset alloc]initWithURL:videoURL options:nil];
AVMutableComposition* mixComposition = [AVMutableComposition composition];
AVMutableCompositionTrack* compositionVideoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
AVAssetTrack* clipVideoTrack = [[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
[compositionVideoTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.duration)
ofTrack:clipVideoTrack
atTime:kCMTimeZero error:nil];
[compositionVideoTrack setPreferredTransform:[[[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] preferredTransform]];
// create the layer with the watermark image
CALayer* aLayer = [CALayer layer];
aLayer.contents = (id)image.CGImage;
aLayer.frame = CGRectMake(50, 100, image.size.width, image.size.height);
aLayer.opacity = 0.9;
//sorts the layer in proper order
AVAssetTrack* videoTrack = [[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
CGSize videoSize = [videoTrack naturalSize];
CALayer *parentLayer = [CALayer layer];
CALayer *videoLayer = [CALayer layer];
parentLayer.frame = CGRectMake(0, 0, videoSize.width, videoSize.height);
videoLayer.frame = CGRectMake(0, 0, videoSize.width, videoSize.height);
[parentLayer addSublayer:videoLayer];
[parentLayer addSublayer:aLayer];
// create text Layer
CATextLayer* titleLayer = [CATextLayer layer];
titleLayer.backgroundColor = [UIColor clearColor].CGColor;
titleLayer.string = @"Dummy text";
titleLayer.font = CFBridgingRetain(@"Helvetica");
titleLayer.fontSize = 28;
titleLayer.shadowOpacity = 0.5;
titleLayer.alignmentMode = kCAAlignmentCenter;
titleLayer.frame = CGRectMake(0, 50, videoSize.width, videoSize.height/6);
[parentLayer addSublayer:titleLayer];
//create the composition and add the instructions to insert the layer:
AVMutableVideoComposition* videoComp = [AVMutableVideoComposition videoComposition];
videoComp.renderSize = videoSize;
videoComp.frameDuration = CMTimeMake(1, 30);
videoComp.animationTool = [AVVideoCompositionCoreAnimationTool videoCompositionCoreAnimationToolWithPostProcessingAsVideoLayer:videoLayer inLayer:parentLayer];
/// instruction
AVMutableVideoCompositionInstruction* instruction = [AVMutableVideoCompositionInstruction videoCompositionInstruction];
instruction.timeRange = CMTimeRangeMake(kCMTimeZero, [mixComposition duration]);
AVAssetTrack* mixVideoTrack = [[mixComposition tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0];
AVMutableVideoCompositionLayerInstruction* layerInstruction = [AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack:mixVideoTrack];
instruction.layerInstructions = [NSArray arrayWithObject:layerInstruction];
videoComp.instructions = [NSArray arrayWithObject: instruction];
// export video
_assetExport = [[AVAssetExportSession alloc] initWithAsset:mixComposition presetName:AVAssetExportPresetMediumQuality];
_assetExport.videoComposition = videoComp;
NSLog (@"created exporter. supportedFileTypes: %@", _assetExport.supportedFileTypes);
NSString* videoName = @"NewWatermarkedVideo.mov";
NSString* exportPath = [NSTemporaryDirectory() stringByAppendingPathComponent:videoName];
NSURL* exportUrl = [NSURL fileURLWithPath:exportPath];
if ([[NSFileManager defaultManager] fileExistsAtPath:exportPath])
[[NSFileManager defaultManager] removeItemAtPath:exportPath error:nil];
_assetExport.outputFileType = AVFileTypeQuickTimeMovie;
_assetExport.outputURL = exportUrl;
_assetExport.shouldOptimizeForNetworkUse = YES;
[_assetExport exportAsynchronouslyWithCompletionHandler:
^(void) {
//[appDelegate showLoadingView:NO];
//Final code here
switch (_assetExport.status)
{
case AVAssetExportSessionStatusUnknown:
NSLog(@"Unknown");
break;
case AVAssetExportSessionStatusWaiting:
NSLog(@"Waiting");
break;
case AVAssetExportSessionStatusExporting:
NSLog(@"Exporting");
break;
case AVAssetExportSessionStatusCompleted:
NSLog(@"Created new water mark image");
playBtn.hidden = NO;
break;
case AVAssetExportSessionStatusFailed:
NSLog(@"Failed- %@", _assetExport.error);
break;
case AVAssetExportSessionStatusCancelled:
NSLog(@"Cancelled");
break;
}
}
];
}
> Use of unresolved identifier 'presentMoviePlayerViewControllerAnimated'
>
> 'videoComposition()' is unavailable: use object construction 'AVMutableVideoComposition()'
열거 경우 '알 수없는'유형에서 찾을 수 없습니다 오류의 그것 보여주는 많은 'AVAssetExportSessionStatus?'동영상에 워터 마크를 추가하는 것을 시도하고있다 Object C에서 매우 잘 작동합니다. 인수 레이블 '(_ :)'이 (가) 사용 가능한 오버로드와 일치하지 않습니다. 이들은 신속한 작업 중에 발생하는 몇 가지 오류입니다. 신속한 지원이 전혀 필요하지 않습니다.은 내가 객관적 C에서 그것을했지만 빠른
. 모든 코드는 객관적입니다 - C는 잘 작동한다고합니다. 질문에 대한 답을 쉽게 얻으려면 신속한 깨진 코드의 예를 제공해주십시오. – torinpitchers