我想使用相同的按钮来开始和停止录制。我想用另一个按钮来播放录音。这就是我所拥有的:
- (IBAction)recordVideo:(id)sender {
if(!self.movieOutput.isRecording) {
NSString *outputPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"output.mp4"];
NSFileManager *manager = [[NSFileManager alloc] init];
if ([manager fileExistsAtPath:outputPath])
{
[manager removeItemAtPath:outputPath error:nil];
}
[self.movieOutput startRecordingToOutputFileURL:[NSURL fileURLWithPath:outputPath]
recordingDelegate:self];
Float64 maximumVideoLength = 5; //Whatever value you wish to set as the maximum, in seconds
int32_t prefferedTimeScale = 30; //Frames per second
CMTime maxDuration = CMTimeMakeWithSeconds(maximumVideoLength, prefferedTimeScale);
self.movieFileOutput.maxRecordedDuration = maxDuration;
self.movieFileOutput.minFreeDiskSpaceLimit = 1024*1024;
}
else
{
[self.movieOutput stopRecording];
}
- (void) captureOutput:(AVCaptureFileOutput *)captureOutput didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL
fromConnections:(NSArray *)connections error:(NSError *)error
{
NSLog(@"Recording to file ended");
[_captureSession stopRunning];
}
然后玩:
- (IBAction)playVideo:(id)sender {
NSURL *fileURL = [NSURL URLWithString:@"outputPath"];
self.avPlayer = [AVPlayer playerWithURL:fileURL];
AVPlayerLayer *movieLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];
self.avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
movieLayer.frame = self.cameraView.bounds;
movieLayer.videoGravity = AVLayerVideoGravityResize;
[self.cameraView.layer addSublayer:movieLayer];
[_avPlayer play];
当我跑步并按下播放按钮时,我没有错误,我看不到任何移动设备。
答案 0 :(得分:2)
您正在临时目录中记录并保存文件
NSString *outputPath = [NSTemporaryDirectory()stringByAppendingPathComponent:@"output.mp4"];
并尝试从捆绑路径播放。使用相同的路径播放录制内容。
首先,检查您的视频是否被正确记录和保存。从您的代码中,视频被保存为临时目录。在路径上检查视频。如果它存在与否。
NSString *outputPath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"output.mp4"];
NSLog(@"%@", outputPath);
在您的代码中,您尝试从outPutPath播放视频,该视频未在您的代码中定义和初始化。如果您已将outPutPath定义为属性或变量,则需要使用相同的路径初始化_outPutPath你保存视频。
NSString *outputPath = [NSTemporaryDirectory()stringByAppendingPathComponent:@"output.mp4"];
_outputPath = outputPath;
播放视频试试这个,
if ([[NSFileManager defaultManager]fileExistsAtPath: _ouputPath]) {
AVAsset *asset = [AVAsset assetWithURL:[NSURL fileURLWithPath:_ouputPath]];
_avPlayer = [[AVPlayer alloc]initWithPlayerItem:[[AVPlayerItem alloc]initWithAsset:asset]];
AVPlayerLayer *movieLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];
movieLayer.frame = self.cameraView.bounds;
[self.cameraView.layer addSublayer:movieLayer];
[self.avPlayer play];
}
答案 1 :(得分:0)
替换你的这一行:
NSURL *url = [NSURL fileURLWithPath:filePath];
用这个:
NSURL *url=[NSURL URLWithString:filePath];
&安培;然后试试。