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Method for reducing video coding time delay

A video encoding and video encoding and decoding technology, applied in the field of video encoding delay reduction, can solve problems such as increased video delay, increased processing time, and limited CPU processing capacity, so as to solve delay problems, reduce delay, reduce Effect of Small Encoding Latency

Inactive Publication Date: 2012-10-10
苏州汉辰数字科技有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

In an embedded system, the processing power of the CPU is limited. For some advanced formats, such as H.264, AVS video coding is difficult to process in real time and requires a certain amount of computing and processing time.
In addition, due to the need for reference frames, the processing time of the CPU increases and the video delay increases

Method used

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  • Method for reducing video coding time delay
  • Method for reducing video coding time delay
  • Method for reducing video coding time delay

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Embodiment Construction

[0015] The purpose of the present invention is to provide a method for reducing video coding time delay. as attached figure 1 As shown, the specific implementation method is:

[0016] (1) Each frame of the original video data taken by the video pickup device through the camera 3 is collected by two video frame buffers in turn, and the video frame buffer 1 has collected a frame of video, and the CPU 4 processes one frame of the video frame buffer 1. Frame video data, meanwhile, the next frame of raw video data taken from camera 3 is stored in video frame buffer 2.

[0017] (2) After the video frame buffer 2 completes the acquisition of the next frame of video data, the CPU 4 fails to process the previous frame of video data, then discards the previous frame of video data, and the CPU 4 processes the next frame of video data, and the video frame buffer Device 1 continues to collect the next frame of video data, and loops in turn.

[0018] (3) If the CPU 4 finishes processing ...

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Abstract

The invention discloses a method for reducing video coding time delay, so as to effectively reduce coding time delay in image video coding. The method comprises steps that: two video frame buffers are placed in handling the video coding, one frame of image data is collected by each video frame buffer in turns, one video frame buffer collects one frame of image data and the other video frame buffer collects the next frame of image data; and when CPU completes the video coding of one frame of image in one video frame buffer, the CPU continues to handle the video coding of the next frame of image in the other video frame buffer and the work is cycled.

Description

technical field [0001] The present invention relates to a video coding processing method, in particular to a method for reducing video coding time delay, [0002] It belongs to the technical field of digital video processing. Background technique [0003] In video communication, video encoding usually consists of several parts: 1) Video acquisition: According to the video acquisition of each frame, the digital signal is stored in the video buffer in the form of data. 2) Video encoding: The original uncompressed video data is compressed by the CPU, and encoding requires reference frames, so the reference frames are cached. 3) Video output. In an embedded system, the processing power of the CPU is limited. For some advanced formats, such as H.264 and AVS video encoding, it is difficult to process in real time and requires a certain amount of processing time. In addition, due to the need for reference frames, the processing time of the CPU is increased, resulting in increase...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04N7/26H04N19/42
Inventor 贺明建
Owner 苏州汉辰数字科技有限公司
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