Video coding system and video coding method employing video coding system

A video encoding and encoding technology, which is applied in the video encoding system and the field of video encoding, can solve the problems of large amount of calculation, poor scalability, and weak scalability, etc., and achieve the effect of small amount of calculation, fast encoding, and high scalability

Active Publication Date: 2016-12-14
SUMAVISION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when using the existing above-mentioned encoding system for encoding, the first encoding stage needs to calculate a lot of information, and the efficiency is relatively low; the condition for the normal operation of the above-mentioned encoding system is that the user needs to know the specific implementation process of all encoders; the above-mentioned system The three steps in the encoding method are closely connected, and the scalability is not strong
[0004] Aiming at the problems of large amount of calculation, low efficiency and poor scalability of the existing coding system, no effective solution has been proposed yet

Method used

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  • Video coding system and video coding method employing video coding system
  • Video coding system and video coding method employing video coding system
  • Video coding system and video coding method employing video coding system

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Embodiment 1

[0028] see figure 1 A schematic structural diagram of a video coding system shown, the system includes the following parts:

[0029] The first encoder 10 connected to the external video source is used to read in the video frame, and encode the video frame according to the specified encoding standard, and output the first code stream; wherein, the encoding standard includes H.264, H.265 , AVS or AVS+;

[0030] The decoder 12 connected to the first encoder 10 is configured to decode the above-mentioned first code stream, and extract and store video coding reference information from the decoding result; wherein, the video coding reference information includes video information, the video information Including one or more of frame type information, macroblock segmentation method information, motion vector information, reference index information, quantization parameter information, and intra-frame prediction mode information;

[0031] The second encoder 14 connected to the exter...

Embodiment 2

[0041] Corresponding to the above system embodiment, the embodiment of the present invention provides a video coding method using the above video coding system, see Figure 4 Shown is a flow chart of a video coding method using the above video coding system, the method includes the following steps:

[0042] Step S402, the first encoder reads in the video frame, encodes the video frame according to a specified coding standard, and outputs a first code stream; wherein, the coding standard includes H.264, H.265, AVS or AVS+;

[0043] Step S404, the decoder decodes the first code stream, extracts and saves the video coding reference information from the decoding result; wherein, the video coding reference information includes video information; the video includes frame type information, macroblock segmentation method information, motion vector One or more of information, reference index information, quantization parameter information and intra prediction mode information;

[0044...

Embodiment 3

[0049] Corresponding to the above-mentioned embodiment 1 or embodiment 2, the embodiment of the present invention provides a multiple codec system and an encoding method applying the system; wherein, see Figure 5 A schematic structural diagram of a multi-time codec system shown, the system includes an encoder 1 (equivalent to the first encoder in Embodiment 1), a decoder 3 (equivalent to the decoder in Embodiment 1) and an encoding The device 2 (equivalent to the second encoder in Embodiment 1) has three components. Encoder 1 encodes the original video frame and outputs code stream 1; decoder 3 interprets information from code stream 1 output by encoder 1, and outputs code stream information; encoder 2 uses code stream information to encode the original video stream , and finally output stream 2.

[0050] Compared with the prior art, the embodiment of the present invention provides a multi-time encoding and decoding system that uses the encoded code stream as the encoding ba...

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Abstract

The invention provides a video coding system and a video coding method employing the video coding system. The video coding system comprises a first encoder which is connected with an external video source, reads in video frames, encodes the video frames according assigned coding standards and outputs a first code stream, a decoder which is connected with the first encoder, decodes the first code stream, and extracts and stores video coding referential information from the decoding result, wherein the video coding referential information includes video information, and a second encoder which is connected with the external video source and the decoder, reads in video frames and video coding referential information, encodes the video frames according assigned coding standards and the video coding referential information and outputs a second code stream. Rapid and effective coding is achieved, and the system and the method also have the advantages of low computational complexity and high expandability.

Description

technical field [0001] The present invention relates to the field of computer application technology, in particular to a video coding system and a video coding method using the system. Background technique [0002] Video encoding refers to the method of converting a video format file into another video format file through a specific compression technology. An existing multi-process optimization coding system includes several parallel encoders, look-ahead buffers and secondary encoders; the input end of the look-ahead buffer is connected with the output end of the parallel encoder, and the output of the look-ahead buffer Terminal is connected with the input end of secondary coder; The coding method of above-mentioned system comprises 3 steps of first coding stage, optimization selection stage and second coding stage; Above-mentioned first coding stage is coded by several parallel coders simultaneously, The look-ahead buffer performs optimal selection on the results obtained ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/44H04N19/436
CPCH04N19/176H04N19/436H04N19/44
Inventor 司继播李欣张龙霄
Owner SUMAVISION TECH CO LTD
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