Video storage method and device
A technology of video recording and storage space, which is applied in the field of video storage methods and devices, can solve problems such as increasing the complexity of life cycle management, and achieve the effect of realizing flexible life cycle management and reducing complexity
Active Publication Date: 2020-01-14
ZHEJIANG UNIVIEW TECH CO LTD
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Problems solved by technology
[0003] In view of this, this application provides a video storage method and device to solve the problem that the existing storage method increases the complexity of life cycle management
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[0026] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.
[0027] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...
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The application provides a video record storage method and device. The method comprises the following steps: acquiring a code stream structure preconfigured by a video encoder; dividing a corresponding storage space for each layer according to code stream layers recorded by the code stream structure; and sequentially storing each video frame in a code stream sent by the video encoder to the corresponding storage space of the layer according to the layer to which the video frame belongs, wherein the priority and life cycle of the video frame stored in each storage space are negatively correlated with the number of the layers to which the video frames belong. According to the video record storage method and device provided by the application, the code stream is stored in a layered mode, and thus the flexible life cycle management of video records can be achieved, each storage space can be provided with different life cycles for management according to the priority level of the corresponding layer, when the life cycle of the video frame of a certain layer expires, the video frame in the storage space corresponding to the layer is discarded or covered, the process of achieving the life cycle management by reading and writing the storage spaces for multiple times in a mode of frame extraction transfer or reduced code rate transfer is not required, and thus the complexity of life cycle management of the video records can be reduced.
Description
technical field [0001] The present application relates to the technical field of video surveillance, and in particular to a video storage method and device. Background technique [0002] In order to facilitate subsequent verification and use, storing the collected video images is the most basic functional requirement of the video surveillance system. In related technologies, the code stream generated by the video encoder is usually CBR (Constants Bit Rate, constant code stream), so the storage space in the video storage device can be divided into multiple space units according to the set size, and each space unit The recording of a fixed time unit is stored for quick retrieval of recording playback. After the video is stored in the video storage device, it also involves the lifecycle management of the video, that is, to delete or overwrite the video according to the importance of the video, or to transcode to a lower bit rate for storage, or to dump the frame. However, no ...
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IPC IPC(8): H04N5/92H04N7/18
CPCH04N5/92H04N7/18
Inventor 吴参毅
Owner ZHEJIANG UNIVIEW TECH CO LTD