Multi-path coding system and method based on H.265

Abstract

The present invention discloses a multi-path coding system and method based on H.265. The system comprises a main encoder module and slave encoder modules. The main encoder module is connected with a plurality of slave encoder modules and configured to share encoding information to the slave encoder modules. The slave encoder modules are configured to accelerate the encoding process through adoption of the sharing information. The main encoder module and the slave encoder modules are configured to perform compression encoding of the same input video data and output code streams with different qualities through adoption of different code rate control parameters. The multi-path coding system and method based on the H.265 reuse the optimized encoding mode of the main encoder to accelerate the encoding process of the slave encoders so as to realize rapid multi-path video encoding on the premise that the encoding quality is not reduced; and moreover, the multi-path coding system and method based on the H.265 perform multi-path encoding of high-definition video with 1920*1080 resolution and run at the 28-core Inter(R)Xeon(R)CPU E5-2697v3@2.6GHz work station so as to save 44.68% encoding time compared to the multiple encoding in the condition of the same encoding parameter configuration condition while the performance is not reduced.

Description

technical field [0001] The present invention relates to a video coding technology, in particular to a multi-channel coding system and method based on H.265 (H.265 is a new video coding standard formulated by ITU-T VCEG after H.264). Background technique [0002] For Internet video applications, the network bandwidth is complex and changeable, and the video compression stream with a single bit rate is difficult to adapt to the actual network environment. For users with tight network bandwidth, the video bit rate should not be too high, otherwise the code stream cannot be transmitted to the decoder in time, and data underflow at the decoding end will occur, causing video freezes and seriously affecting the viewing experience; and for users with sufficient network bandwidth, It is hoped to obtain a video with a higher bit rate, otherwise it will cause a waste of bandwidth resources and unnecessary degradation of video quality. And the same terminal, its network environment is ...

AI Technical Summary

Problems solved by technology

The method proposed in this paper only uses the block structure relationship between different encoders, and does not fully remove the computational redundancy of multi-channel encoding, and the method does not consider the video content, and the robustness is not high enough.

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