iOS video streaming and storing on device afterwards

Question

So far I know how to stream a video and how to download it and afterwards stream it, but here\'s the tricky bit: streaming it once, storing it on the device and in the futur

Answer 1

BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:somePath];

and

fileURLWithPath:isDirectory:

Initializes and returns a newly created NSURL object as a file URL with a specified path.

+ (id)fileURLWithPath:(NSString *)path isDirectory:(BOOL)isDir

Parameters

path

The path that the NSURL object will represent. path should be a valid system path. If path begins with a tilde, it must first be expanded with stringByExpandingTildeInPath. If path is a relative path, it is treated as being relative to the current working directory. Passing nil for this parameter produces an exception.

isDir

A Boolean value that specifies whether path is treated as a directory path when resolving against relative path components. Pass YES if the path indicates a directory, NO otherwise. Return Value An NSURL object initialized with path.

Availability

Available in iOS 2.0 and later.

You can't stream it and save it at the same time, especially with large video files as the Apple doc sais that you must use a transport stream for HTTP Live Streaming.