Ios 如何检测GPUImageMovie何时完成处理
是否有方法检测GPUImageMovie何时完成处理?目前我不想保存电影,因此没有带完成块的GPUImageMovieWriterIos 如何检测GPUImageMovie何时完成处理,ios,objective-c,gpuimage,Ios,Objective C,Gpuimage,是否有方法检测GPUImageMovie何时完成处理?目前我不想保存电影,因此没有带完成块的GPUImageMovieWriter self.movieFile = [[GPUImageMovie alloc] initWithURL:assetURL]; if([filterType isEqualToString:@"BigApple 1"]){ self.lookupImageSource = [[GPUImagePicture alloc] initWithImage:[UI
self.movieFile = [[GPUImageMovie alloc] initWithURL:assetURL];
if([filterType isEqualToString:@"BigApple 1"]){
self.lookupImageSource = [[GPUImagePicture alloc] initWithImage:[UIImage imageNamed:@"BigApple1.png"]];
[self.lookupImageSource processImage];
[self.lookupImageSource useNextFrameForImageCapture];
filter = [[GPUImageLookupFilter alloc] init];
[lookupImageSource addTarget:filter atTextureLocation:1];
}
[movieFile addTarget:filter];
[filter addTarget:videoWindow];
[self.imageThumbnail removeFromSuperview];
[movieFile startProcessing];
通过使用计时器,然后检查GPUImageMovie上的进度值,解决了此问题
self.sampleTimer = [NSTimer scheduledTimerWithTimeInterval:0.1f
target:self
selector:@selector(retrievingSampleProgress)
userInfo:nil
repeats:YES];
- (void)retrievingSampleProgress {
NSLog(@"Sample Complete:%f",self.movieFile.progress);
if(self.movieFile.progress == 1){
[self.sampleTimer invalidate];
self.viewingSample = 0;
}else {
self.viewingSample = 1;
}
}应该有一个
startProcessingWithCompletionHandler:
callHi,开始处理上没有完成处理程序。您也可以通过实现GPUImageMovieDelegate
来检测这一点。