Intelligent buffer method on flow chart and time line

Abstract

The invention discloses an intelligent buffer method on a flow chart and a time line. The intelligent buffer method is used for video clip, sequence and node buffer on the flow chart and the time line in nonlinear editing and clipping software and audio / video later-period special effect processing and synthesis software, and solves the real-time problem in the editing process in the audio / video later-period special effect processing. In order to solve the problem, the intelligent buffer method adopts a mode of presetting the buffer state of sequences or editing nodes, the invoking is carried out in the audio / video processing process according to the buffer sate of each sequence and each editing node, and the information can be directly and correspondingly read from corresponding buffer files when the quotation of the section of edited materials is needed, so the time overhead required by the recomputation is reduced for reaching the playing real-time requirement. Therefore, the dependence on the input / output (I / O) and the time overhead consumed by a large amount of background computation are effectively reduced, and further, the real-time performance in the program editing process is improved.

Description

technical field [0001] This design is suitable for non-linear editing and editing software and video and audio post-processing and synthesis software, intelligent caching methods on flowcharts and timelines. Background technique [0002] In non-linear editing and editing software and video and audio post-production special effects processing and synthesis software, with the increasing requirements for program production, it is often necessary to process a large number of high-definition and high-resolution materials for simultaneous editing to meet the richness of the program and high-quality requirements, but due to the mismatch between the I / O speed of the disk and the memory speed, and the time overhead required for a large number of calculations generated during the encoding, decoding or special effect application of a large number of high-definition and high-resolution materials, This may result in that the edited effect cannot be displayed to the program editor in real...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem of the mismatch between the I / O speed of the disk and the speed of the memory, as well as the time overhead required for a large number of calculations in the process of encoding, decoding or applying special effects to a large number of high-definition and high-resolution materials, this paper The invention adopts an intelligent caching mechanism without limitation, which is determined according to the size of the remaining space on the disk. During the editing process, when a certain sequence or an editing node is cached, after a playback, the effect of the current sequence or node is recorded to the specified cache file

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