System for processing ultralong caption data

Abstract

The invention discloses a system for processing ultralong caption data, which is characterized by comprising a determination module, an allocation module, a regulation module and a record module; wherein, the determination module is used for determining the size of the memory and the value of N according to the size of a playing screen and data quantity of the caption; the allocation module is used for allocating the memory for caption images; the regulation module is used for regulating the caption image contents in the memory; the record module is used for recording a pointer of the blank content of the memory block. A plurality of memory blocks with fixed sizes are adopted to allocate memory for caption images, so that large memory needed by ultralong caption can be realized by updating memory images by the plurality of memory blocks; thus reducing the render time of the images and ensuring smooth display of the real-time dynamic caption; every character in the memory blocks can becompletely rendered without flaws caused by boundary characters.

Description

technical field [0001] The invention relates to the field of broadcasting and television, in particular to a system for processing ultra-long subtitle data. Background technique [0002] Computer subtitles and graphics technology have been widely used in radio, film and television fields. For example, the application of subtitle graphics involves all aspects of TV program production, including news live broadcast, studio, all variety shows, sports, finance, weather, etc., as well as the production of film and television dramas. Subtitle graphics are the most commonly used elements in the production, post and editing domains, studio and playout lines. With the wide application of subtitles, according to different functions and effects, subtitles can be divided into ordinary subtitles, libretto subtitles and scrolling subtitles. A subtitle is an image rendered by a computer to render text symbols into specific visual effects. The size of the image depends on the size and num...

AI Technical Summary

Problems solved by technology

[0004] The following problems may occur when rendering characters into a block of memory at a time, including: super long subtitles require a large block of memory, and the memory area is always limited, which may cause stack buffer overflow, resulting in failure to allocate large blocks of memory; larger images render The longer the time, the real-time dynamic subtitles may cause the subtitles to be broadcast unsmoothly and have a sense of pause; under a fixed-size memory block, there will inevitably appear boundary characters that cross two memory blocks. Flaws appear when splicing the same character rendered by two memory blocks separately

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