Method and device for recording multimedia file

Abstract

The embodiment of the invention provides a method and device for recording a multimedia file. The method comprises the following steps: when a recording request of the multimedia file is received, creating a data source, an encoder, a packer, a first multimedia writer and a second multimedia writer; continuously acquiring multimedia data through the data source; continuously encoding the multimedia data by the encoder, and writing the encoded multimedia data into a preset buffer queue; reading the encoded multimedia data from the buffer queue, and writing the encoded multimedia data into a first multimedia file by the first multimedia writer; judging whether the first multimedia file exceeds a preset file size threshold or not; and if so, switching to the second multimedia writer, reading the encoded multimedia data from the buffer queue, and writing the encoded multimedia data into a second multimedia file by the second multimedia writer. Through the embodiment of the invention, ceaseless work during switching is ensured; the condition that part of content of the recorded file is blank is avoided; and seamless continuous recording is realized.

Description

technical field [0001] The invention relates to the technical field of multimedia, in particular to a method for recording multimedia files and a device for recording multimedia files. Background technique [0002] In the field of video surveillance such as driving recorder and site monitoring, it generally needs to record video for a long time. [0003] In the current video recording tools, due to the limitations of the file system and computing platform, it is necessary to set the upper limit of the size of the recorded video file when recording, and use multiple video files to continuously store the recorded video. [0004] However, when the recording of the video file is finished, the video recording tool needs to be closed, and when the recording of the video file is performed again, the video recording tool is restarted, and initialization and other operations need to be performed when starting. [0005] It can be seen that it takes a long time in the process of video...

AI Technical Summary

Problems solved by technology

[0004] However, when the recording of the video file ends, the video recording tool needs to be closed, and when the video file is recorded again, the video recording tool is restarted, and operations such as initialization are required when starting

[0005] It can be seen that it takes a long time in the process of video file switching, and recording cannot be performed during the switching process, resulting in a gap in monitoring time. For the strict monitoring field, the loss of this video data may have serious problems

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