Stream video with CocoaHTTPServer

I'm trying to implement a server on MAC OS X that streams video for iOS devices.

On the server side I use CocoaHTTPServer to return an .mp4 video.

    - (HTTPFileResponse*)video:(NSString*)pPath
    {    
        BOOL              fileExists   = [[NSFileManager defaultManager] fileExistsAtPath:pPath];
        HTTPFileResponse *fileResponse = nil;

        if (fileExists && [self isVideo:pPath])
        {
            fileResponse = [[HTTPFileResponse alloc] initWithFilePath:pPath forConnection:self];
        }

        return fileResponse;
    }

On the client side I use MPMoviePlayerController to read the video.

When I try to read the video, I obtain this error:

MPMovieFinishReasonPlaybackError.error : Error Domain=MediaPlayerErrorDomain Code=-11828 "Cannot Open" UserInfo=0xb92ca80 {NSLocalizedDescription=Cannot Open}"

I fixed this problem by overriding httpHeaders of HTTPFileResponse like that :

- (NSDictionary *)httpHeaders
{
    NSString *key = @"Content-Disposition";
    NSString *value = [NSString stringWithFormat:@"attachment; filename=\"%@\"", [filePath lastPathComponent]];

    return [NSDictionary dictionaryWithObjectsAndKeys:value, key, nil];
} 

It happens because HTTPFileResponse return video without extension. And MPMoviePlayerController can't read video without extension.