1

我正在使用 AVFoundation 来捕获视频。在我到达这里之前，我的应用程序似乎一切都很好：

- (void)captureOutput:(AVCaptureFileOutput *)captureOutput
didFinishRecordingToOutputFileAtURL:(NSURL *)outputFileURL
  fromConnections:(NSArray *)connections
            error:(NSError *)error
{

NSLog(@"didFinishRecordingToOutputFileAtURL - enter");

BOOL RecordedSuccessfully = YES;
if ([error code] != noErr)
{
    // A problem occurred: Find out if the recording was successful.
    id value = [[error userInfo] objectForKey:AVErrorRecordingSuccessfullyFinishedKey];
    if (value)
    {
        RecordedSuccessfully = [value boolValue];
    }
}
if (RecordedSuccessfully)
{
    //----- RECORDED SUCESSFULLY -----
    NSLog(@"didFinishRecordingToOutputFileAtURL - success");
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
    if ([library videoAtPathIsCompatibleWithSavedPhotosAlbum:outputFileURL])
    {
        [library writeVideoAtPathToSavedPhotosAlbum:outputFileURL
                                    completionBlock:^(NSURL *assetURL, NSError *error)
         {
             if (error)
             {

             }
         }];
    }

    [library release];      

}

}

在设备上运行它时，我收到“didFinishRecordingToOutputFileAtURL - 成功”消息，然后它崩溃并出现此错误：

视频 /private/var/mobile/Applications/EDC62CED-3710-45B2-A658-A2FE9238F517/tmp/output.mov 无法保存到已保存的相册：错误域=NSOSStatusErrorDomain Code=-12950“无法播放电影。” UserInfo=0xe6749b0 {NSLocalizedDescription=电影无法播放。}

我无法在任何地方找到有关此的大量信息，并且不确定发生了什么。

这是带有临时输出 URL 的代码：

NSString *outputPath = [[NSString alloc] initWithFormat:@"%@%@", NSTemporaryDirectory(), @"output.mov"];
NSURL *outputURL = [[NSURL alloc] initFileURLWithPath:outputPath];
NSFileManager *fileManager = [NSFileManager defaultManager];
if ([fileManager fileExistsAtPath:outputPath])
{
    NSError *error;
    if ([fileManager removeItemAtPath:outputPath error:&error] == NO)
    {
        //Error - handle if requried
    }
}
[outputPath release];
//Start recording
[movieFileOutput startRecordingToOutputFileURL:outputURL recordingDelegate:self];

[outputURL release];

我已经尝试在保存后将 outputURL 发布到其他地方，但这并没有帮助，所以我认为不是这样。

4

1 回答 1

0

我想通了。我是个白痴，一直忽略我实际上没有将视频输入连接到捕获会话的事实。哎呀。

于 2012-07-15T21:48:53.557 回答