Patent ID: 9595293
Date: 2017-03-14
CPC Classifications: G11B,H04N

Claim:
1. Apparatus for composition of subtitles for audio/video presentations, wherein data streams containing video, audio and subtitle information are transferred from a storage medium, the apparatus comprising: a processor for retrieving from said storage medium subtitle layer data, wherein the subtitle layer data contain graphic subtitle elements, and presentation time stamps; the processor extracting from said retrieved subtitle layer data subtitle display region information for defining a subtitle display region, and subtitle display region cropping information, for cropping the display region, the subtitle display region cropping information comprising a parameter for horizontal position of the cropped subtitle display region, a parameter for vertical position of the cropped subtitle display region, a parameter for width of the cropped subtitle display region, and a parameter for height of the cropped subtitle display region; and a renderer for enabling automatic cropping of rectangular parts of the subtitle elements to be displayed in the cropped subtitle display region; wherein the cropped parts of the subtitle elements to be displayed are defined by said subtitle display region cropping information; and wherein the presentation time stamps are suitable for synchronizing the cropped parts of the subtitle elements to the video presentation.