我用AVFoundation创建了一个类似于Snapchat的自定义相机 . 图片方面有效:拍照并显示图片 . 现在我正在尝试拍摄视频并显示视频 .
我已经捕获了一个成功的视频文件,经过测试并与MPMoviePlayer配合使用,但无法在AVPlayer上播放 .
- (void)takeVideoAction:(id)sender {
NSString *outputPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"output.mp4"];
NSFileManager *manager = [[NSFileManager alloc] init];
if ([manager fileExistsAtPath:outputPath]){
[manager removeItemAtPath:outputPath error:nil];
}
[movieFileOutput startRecordingToOutputFileURL:[NSURL fileURLWithPath:outputPath] recordingDelegate:self];
}
- (void)captureOutput:(AVCaptureFileOutput *)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL fromConnections:(NSArray *)connections error:(NSError *)error{
AVURLAsset *asset = [AVURLAsset URLAssetWithURL:outputFileURL options:nil];
[asset loadValuesAsynchronouslyForKeys:@[@"tracks"] completionHandler:^{
dispatch_async(dispatch_get_main_queue(), ^{
NSError *error = nil;
if([asset statusOfValueForKey:@"tracks" error:&error] == AVKeyValueStatusFailed){
NSLog(@"error: %@", [error description]);
}
else{
self.playerItem = [AVPlayerItem playerItemWithAsset:asset];
self.player = [AVPlayer playerWithPlayerItem:self.playerItem];
self.playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
self.playerLayer.frame = self.view.bounds;
[self.view.layer addSublayer:self.playerLayer];
[self.player play];
}
});
}];
}
这是我第一次使用AVFoundation和AVPlayer . 资产加载后我不能 [self.player play]
吗?我需要等待物品状态为 AVPlayerItemStatusReadyToPlay
?
错误:错误域= NSURLErrorDomain代码= -1100 "The requested URL was not found on this server."
1 回答
我正在使用AVPlayerLayer播放视频 . 我使用下面的代码,它工作正常 .
希望这可以帮到你 .