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In einer meiner Anwendung muss ich ein Bild in Video hinzufügen. Also habe ich Break Video in zwei Teile geschnitten und mache auch ein Video von diesem Bild. Jetzt möchte ich diese drei Videodateien kombinieren und eine Videodatei erstellen. aber ich habe keine Idee, dieses Video zu kombinieren. Ich sehe hier einen Code. aber das hilft mir nicht. für pause video und für make video von bild habe ich unter code jetzt ich möchte code all diese video zusammenführen.Zusammenführen von zwei Videodateien in iPhone-Anwendung
Jede andere Idee für aktuelle Ansicht Bildschirm in Videodatei dazwischen.
Für Pause Videodatei
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"Affagogato" ofType:@"mp4"]];
AVURLAsset *anAsset = [[AVURLAsset alloc] initWithURL:url options:nil];
for(int i = 0; i < 2; i++) {
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]
initWithAsset:anAsset presetName:AVAssetExportPresetLowQuality];
NSString *filePath = nil;
NSUInteger count = 0;
do {
filePath = NSTemporaryDirectory();
NSString *numberString = count > 0 ? [NSString stringWithFormat:@"-%i", count] : @"";
filePath = [filePath stringByAppendingPathComponent:[NSString stringWithFormat:@"Output-%@.mov", numberString]];
count++;
} while([[NSFileManager defaultManager] fileExistsAtPath:filePath]);
exportSession.outputURL = [NSURL fileURLWithPath:filePath];
exportSession.outputFileType = AVFileTypeQuickTimeMovie;
CMTimeRange range;
if(i == 0){
CMTime start = CMTimeMakeWithSeconds(0.0, 600);
CMTime duration = CMTimeMakeWithSeconds(10.0, 600);
range = CMTimeRangeMake(start, duration);
}else{
CMTime start = CMTimeMakeWithSeconds(10.0, 600);
range = CMTimeRangeMake(start, anAsset.duration);
}
exportSession.timeRange = range;
[exportSession exportAsynchronouslyWithCompletionHandler:^
{
dispatch_async(dispatch_get_main_queue(), ^{
[self exportDidFinish:exportSession Tag:i];
});
}];
}
Get Video von Bildern
CGRect rect=CGRectMake(0, 0, 320, 480);
view = [[UIView alloc]initWithFrame:rect];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
NSString *path = [documentsDirectory stringByAppendingPathComponent:[@"video2" stringByAppendingString:@".mov"]];
CGSize size = self.view.frame.size;
NSMutableDictionary *attributes = [[NSMutableDictionary alloc]init];
[attributes setObject:[NSNumber numberWithUnsignedInt:kCVPixelFormatType_32ARGB] forKey:(NSString*)kCVPixelBufferPixelFormatTypeKey];
[attributes setObject:[NSNumber numberWithUnsignedInt:320] forKey:(NSString*)kCVPixelBufferWidthKey];
[attributes setObject:[NSNumber numberWithUnsignedInt:480] forKey:(NSString*)kCVPixelBufferHeightKey];
NSError *error = nil;
AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL:
[NSURL fileURLWithPath:path] fileType:AVFileTypeQuickTimeMovie
error:&error];
NSParameterAssert(videoWriter);
NSDictionary *videoSettings = [NSDictionary dictionaryWithObjectsAndKeys:
AVVideoCodecH264, AVVideoCodecKey,
[NSNumber numberWithInt:size.width], AVVideoWidthKey,
[NSNumber numberWithInt:size.height], AVVideoHeightKey,
nil];
AVAssetWriterInput* writerInput = [[AVAssetWriterInput
assetWriterInputWithMediaType:AVMediaTypeVideo
outputSettings:videoSettings] retain];
AVAssetWriterInputPixelBufferAdaptor *adaptor = [AVAssetWriterInputPixelBufferAdaptor
assetWriterInputPixelBufferAdaptorWithAssetWriterInput:writerInput
sourcePixelBufferAttributes:nil];
NSParameterAssert(writerInput);
NSParameterAssert([videoWriter canAddInput:writerInput]);
[videoWriter addInput:writerInput];
//Start a session:
[videoWriter startWriting];
[videoWriter startSessionAtSourceTime:kCMTimeZero];
CVPixelBufferRef buffer = NULL;
//convert uiimage to CGImage.
xPixel=0;
yPixel=250;
buffer = [self pixelBufferFromCGImage:[[UIImage imageNamed:@"1.jpeg"] CGImage]];
CVPixelBufferPoolCreatePixelBuffer (NULL, adaptor.pixelBufferPool, &buffer);
[adaptor appendPixelBuffer:buffer withPresentationTime:kCMTimeZero];
for (int i = 0;i<2; i++)
{
if([writerInput isReadyForMoreMediaData])
{
//NSLog(@"inside for loop %d",i);
for(int pframetime=1;pframetime<=2;pframetime++)
{
CMTime frameTime = CMTimeMake(pframetime,25);
CMTime lastTime=CMTimeMake(i,1); //i is from 0 to 19 of the loop above
CMTime presentTime=CMTimeAdd(lastTime, frameTime);
if(i==0)
buffer = [self pixelBufferFromCGImage:[[UIImage imageNamed:@"1.jpeg"] CGImage]];
else
buffer = [self pixelBufferFromCGImage:[[UIImage imageNamed:@"2.jpeg"] CGImage]];
while (![writerInput isReadyForMoreMediaData])
{
[NSThread sleepForTimeInterval:0.05];
}
[adaptor appendPixelBuffer:buffer withPresentationTime:presentTime];
i++;
}
if(buffer)
CVBufferRelease(buffer);
//[NSThread sleepForTimeInterval:0.1];
}
}
[writerInput markAsFinished];
[videoWriter finishWriting];
[videoPathArray addObject:path];
//Finish the session:
[videoWriter release];
[writerInput release];
CVPixelBufferPoolRelease(adaptor.pixelBufferPool);
Für Merge Video-Dateien, die ich diesen Code versuchen, aber nicht sinnvoll, hier ist etwas leerer Bildschirm zwischen Video
AVMutableComposition* mixComposition = [AVMutableComposition composition];
NSString *documentsDirectoryPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString* video_inputFilePath1 = [videoPathArray objectAtIndex:1];
NSURL* video_inputFileUrl1 = [NSURL fileURLWithPath:video_inputFilePath1];
NSString* video_inputFilePath2 = [videoPathArray objectAtIndex:0];
NSURL* video_inputFileUrl2 = [NSURL fileURLWithPath:video_inputFilePath2];
NSString* video_inputFilePath3 = [videoPathArray objectAtIndex:2];
NSURL* video_inputFileUrl3 = [NSURL fileURLWithPath:video_inputFilePath3];
NSString* outputFileName = @"outputFile.mov";
NSString* outputFilePath = [NSString stringWithFormat:@"%@/%@",documentsDirectoryPath,outputFileName];
NSURL* outputFileUrl = [NSURL fileURLWithPath:outputFilePath];
if ([[NSFileManager defaultManager] fileExistsAtPath:outputFilePath])
[[NSFileManager defaultManager] removeItemAtPath:outputFilePath error:nil];
CMTime nextClipStartTime = kCMTimeZero;
AVURLAsset* videoAsset1 = [[AVURLAsset alloc]initWithURL:video_inputFileUrl1 options:nil];
AVURLAsset* videoAsset2 = [[AVURLAsset alloc]initWithURL:video_inputFileUrl2 options:nil];
AVURLAsset* videoAsset3 = [[AVURLAsset alloc]initWithURL:video_inputFileUrl3 options:nil];
CMTimeRange video_timeRange1 = CMTimeRangeMake(kCMTimeZero,videoAsset1.duration);
AVMutableCompositionTrack *a_compositionVideoTrack1 = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
[a_compositionVideoTrack1 insertTimeRange:video_timeRange1 ofTrack:[[videoAsset1 tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:nextClipStartTime error:nil];
CMTimeRange video_timeRange3 = CMTimeRangeMake(nextClipStartTime,videoAsset3.duration);
[a_compositionVideoTrack1 insertTimeRange:video_timeRange3 ofTrack:[[videoAsset3 tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:videoAsset1.duration error:nil];
CMTimeRange video_timeRange2 = CMTimeRangeMake(nextClipStartTime,videoAsset1.duration);
[a_compositionVideoTrack1 insertTimeRange:video_timeRange2 ofTrack:[[videoAsset2 tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:videoAsset1.duration error:nil];
AVAssetExportSession* _assetExport = [[AVAssetExportSession alloc] initWithAsset:mixComposition presetName:AVAssetExportPresetLowQuality];
_assetExport.shouldOptimizeForNetworkUse = YES;
_assetExport.outputFileType = @"com.apple.quicktime-movie";
_assetExport.outputURL = outputFileUrl;