The Closed Caption detection engine supports CEA-608/708 standards for both analog signals in NTSC and digital signals in any of the formats (ATSC, DVB, ISBDT). The subtitles DVB or SCTE-27 coming from the signals of Transport Stream are fully supported. All streams are simultaneously decoded and one or more subtitles are allowed to be overprinted. OCR is also performed on the subtitle images to allow the content to be indexed in text format and be able to make inquiries in the google-like style.