发明公开
EP1720166A1 Method and apparatus for authoring a 24p audio/video data stream by supplementing it with additional 50i format data items 审中-公开
通过用具有附加50i的格式的数据项补充它创建的24p音频/视频数据流的方法和装置

Method and apparatus for authoring a 24p audio/video data stream by supplementing it with additional 50i format data items
摘要:
Movies are produced in 24Hz frame frequency and progressive scanning format (denoted 24p) for projection in film theatres, adhering to a worldwide standard for 35mm film. However, the major TV systems in the world use interlaced scanning and either 50Hz field frequency (denoted 50i) or 60Hz field frequency (denoted 60i). Content providers would prefer providing single-picture-frequency single-audio-speed AV discs that can be replayed in most parts of the world. A 24p audio/video data stream is supplemented with additional 50i format data items, thereby allowing 24p and 50i format replay of that data stream.
信息查询
0/0