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A HEVC-based high-performance audio and video encoding device

A coding device, audio and video technology, applied in the direction of digital video signal modification, TV, color TV, etc., can solve the problems of not paying attention to delay index, only focusing on compression ratio, etc., to achieve convenient positioning and troubleshooting, good positioning target, code Flow average and stable effect

Active Publication Date: 2022-04-22
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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AI Technical Summary

Problems solved by technology

On the other hand, the HEVC algorithm in the traditional monitoring field only pays attention to the compression ratio and does not pay attention to the delay index

Method used

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  • A HEVC-based high-performance audio and video encoding device

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Reference Figure 1 Shown, a heVC-based high-performance audio and video coding apparatus, which comprises an SDI video interface, a PAL video interface, a CameraLink video interface, an HDMI video interface, an audio interface, a synchronous data output interface, a control interface, a return interface, an FPGA, a HEVC encoding core board, the FPGA for implementing an SDI preprocessing module, a PAL preprocessing module, a CameraLink preprocessing module, an audio encoding module, a control instruction parsing module, Return framing module, synchronous data output module.

[0034] Specifically, the SDI video interface receives standard SDI video data, converts the externally input high-speed serial SDI video data into 1 pair of differential clocks and 5 pairs of differential data through the SDI video equalizer and SDI deserializ...

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Abstract

The invention discloses an HEVC-based high-performance audio and video encoding device, which belongs to the technical field of audio and video compression. It includes SDI video interface, PAL video interface, CameraLink video interface, HDMI video interface, audio interface, synchronous data output interface, control interface, return interface, FPGA, HEVC encoding core board, FPGA is used to realize SDI preprocessing module, PAL Preprocessing module, CameraLink preprocessing module, audio encoding module, control command parsing module, report framing module and synchronous data output module. The present invention has rich compatible video sources, not only can realize the transmission of audio from the compression end to the decompression end, but also can realize the audio calling application from the decompression end to the compression end, thereby realizing the function of low-latency audio and video transmission.

Description

Technical field [0001] The present invention relates to the field of audio and video compression technology, in particular refers to a heVC-based high-performance audio and video coding device, which can be used in unmanned flight systems transmitted using fixed bandwidth links. Background [0002] HeVC algorithm is the latest generation of video compression algorithm, compared to H.264 algorithm has higher compression efficiency. In unmanned aerial vehicle systems, link resources are very limited, and the demand for image quality is getting higher and higher. Therefore, the application of HEVC video coding algorithm to unmanned aerial vehicle systems has great value. Under the same video quality, HEVC can save more link resources than the H.264 algorithm, improve the link range and anti-interference. On the other hand, heVC algorithms in the traditional monitoring field only focus on compression ratios, not on latency indicators. In unmanned aerial vehicle systems, the delay in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/12H04N19/184H04N19/42H04N5/765
CPCH04N19/12H04N19/184H04N19/42H04N5/765
Inventor 张俊凯李光耿炎胡佳龚志勇左栋
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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