FIELD: calculating; counting.
SUBSTANCE: invention relates to the computer equipment. Video stream and subtitle streaming device comprises video encoder configured to generate video stream containing image data; a subtitle encoder configured to generate a subtitle stream containing subtitle information; information insertion unit for adjustment, configured to insert information for adjusting the brightness level to at least a video stream or a subtitle stream, information for adjusting the brightness level is intended to control subtitle brightness level; and a transmitting unit configured to transmit the container in a predetermined format, wherein the container comprises a video stream and a subtitle stream, in which the subtitle encoder generates a subtitle stream in accordance with text subtitle information in the TTML, and the adjustment information insertion unit inserts information into the TTML structure header to adjust the brightness level using the metadata element.
EFFECT: technical result consists in enabling adjustment of subtitle brightness level.
16 cl, 33 dwg
