A media source is configured to provide a media stream that includes an audio-video recording. The audio-video recording comprises image frames. A video presentation device receives the media stream provided by the media source and selects a portion of the image frames of the media stream. The device determines, based at least in part on characteristics of the video presentation device and properties of the selected portion of the image frames, a processing resource for executing an algorithm configured to determine a probability that the media stream includes synthetic media. The selected portion of the frames and an indication of the algorithm are provided to the processing resource. The processing resource executes the algorithm to determine the probability that the media stream includes synthetic media. The audio-video recording and a representation of the probability that the media stream includes synthetic media are displayed.