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Frame adjustment method in support of real-time video cache multi-way read

A real-time video and adjustment method technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problem of overall speed reduction, achieve the effect of ensuring integrity and avoiding memory waste

Active Publication Date: 2016-11-09
南京云恩通讯科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a frame adjustment method that supports multi-channel reading of real-time video cache, and introduces a data sharing cache mechanism with the main cache as the main cache and the secondary cache as the supplementary, so as to avoid the problem caused by the slow reading speed of one reader. In the event that the overall speed decreases due to slowness, the integrity of video frame reading is guaranteed, and at the same time, the requirements of different readers for real-time and fluency of video are taken into account.

Method used

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  • Frame adjustment method in support of real-time video cache multi-way read

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0030] A frame adjustment method supporting multi-way reading of real-time video buffers. Three management linked lists are created, one is a primary cache data linked list, one is a secondary cache linked list, and one is an idle linked list, which specifically includes the following steps:

[0031] Step 1: Set the number threshold of the main cache linked list according to the information of the data source and the information of the device memory.

[0032] Step 2: For each data source, use the small packet cache mechanism to split each f...

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Abstract

The invention provides a frame adjustment method in support of real-time video cache multi-way read. A data sharing cache mechanism which is mainly based on a master cache, and partially based on a second level cache is introduced. The condition that the integrated speed is reduced due to the fact that the read speed of one reader is relatively slow is avoided; the read completeness of video frames is ensured; and moreover, the demands of different readers for the video timeliness and fluency can be all taken into consideration.

Description

technical field [0001] The invention belongs to the technical field of buffering, in particular to a frame adjustment method supporting multi-path reading of real-time video buffering. Background technique [0002] In the prior art, video frames of a certain length are buffered in the system memory. When the network is not good, too much data accumulates, causing the buffer buff to overflow, and new video sequences cannot be written. Only when the buffered video frames are read , before putting the new video sequence into the memory buffer. Its disadvantages are: 1. Poor data sharing. When reading video sources from multiple channels, if one channel is slow to read, it will affect the reading of other channels, which is not conducive to user experience; 2. If the queue is opened for each channel, the data Repeated copying wastes memory and sacrifices efficiency. Contents of the invention [0003] The technical problem solved by the present invention is to provide a frame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/231H04N21/433
CPCH04N21/23106H04N21/4331
Inventor 郭军伟曾晓东
Owner 南京云恩通讯科技有限公司
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