QuickMark forensic watermarking

The NexGuard library forensic watermarking tool embeds a unique, invisible serial number onto video/audio content.

You can configure a visible watermark for integration purposes.

Prerequisites

A Watermarking server to generate the watermarked surface. Associated with this:

Tenant Id - you may use TEST_TENANT during integration

Service endpoint URL
Secret key
API to authenticate with the service endpoint if required (optional)

A system to generate 24-bit Watermark IDs (contained within the token) to identify the user, session and/or device.

Initialisation

The NMPWatermark class needs to be instantiated and configured by calling initWithUrl:withToken:withTenant:withSecret: providing the configuration parameters in one go.

Alternatively, you can achieve piecemeal configuration by calling initWithSecret: followed by setUrl:, setToken: and setTenant:.
setApiKey: also exists if required.

Binding the player and view

The UIView and AVPlayerLayer need to be bound together to allow the presentation of the watermark. Call bind:withAVPlayerLayer: passing references to your UIView and AVPlayerLayer.

CODE

@interface PlayerView()
@property (nonatomic) NMPWatermark* watermark;
@end

- (void)setPlayer:(AVPlayer *)player {
  [(AVPlayerLayer *)[self layer] setPlayer:player];
  if (player) {
    _watermark = [[NMPWatermark alloc] initWithSecret: AUTH_SECRET];
    [_watermark setToken: AUTH_TOKEN];
    [_watermark setTenant: AUTH_TENANT];
    [_watermark setApiKey: AUTH_APIKEY];
    [_watermark setUrl: AUTH_SERVICE_URL];

    [_watermark bind: self withAVPlayerLayer:self.layer];
  } else {
    [_watermark unbind];
  }
}

Feedback loop

You should create an NMPWatermarkDelegate to handle messages and error events from the watermarking system

The callbacks to implement for this delegate are:

onWatermarkError:withMessage:
onWatermarkMessage:

Make sure the delegate for the NMPWatermark instance is set; for example:

CODE

_watermark.delegate = self;