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Audio video coding standard (AVS) video coder adopting high speed multi-core digital signal processor (DSP) platform

A video encoder, multi-core technology, applied in the direction of digital video signal modification, television, electrical components, etc., can solve the problem of inability to effectively support multi-core processors, and achieve the effect of reducing the burden

Inactive Publication Date: 2011-11-16
苏州汉辰数字科技有限公司
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AI Technical Summary

Problems solved by technology

Several existing embedded operating systems, such as μcLinux, PalmOS, WinCE, etc., cannot effectively support multi-core processors.

Method used

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  • Audio video coding standard (AVS) video coder adopting high speed multi-core digital signal processor (DSP) platform
  • Audio video coding standard (AVS) video coder adopting high speed multi-core digital signal processor (DSP) platform
  • Audio video coding standard (AVS) video coder adopting high speed multi-core digital signal processor (DSP) platform

Examples

Experimental program
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Embodiment Construction

[0014] The specific implementation of AVS video encoder of the present invention is as follows:

[0015] Combining the characteristics of multi-core high-speed signal processing chip and DSP platform structure, as attached figure 1 And attached figure 2 As shown, the overall encoding process of the AVS code transplanted to the DSP platform adopts the separation of I frame and P frame, and the separation of brightness and chrominance, so that it can be processed by macroblock in sequence within the limited resources of DSP, and finally entropy coding is completed by frame. In terms of algorithm optimization, the inter-frame motion search part reduces the search range on the premise that the signal-to-noise ratio is not greatly reduced, reducing the implementation complexity. The memory is allocated reasonably, the Cache hit rate of the DSP platform is improved, and the C language and assembly are deeply optimized for each important functional module.

[0016] The data storag...

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Abstract

The invention provides an audio video coding standard (AVS) video coder adopting a high speed multi-core digital signal processor (DSP) platform. The AVS video coder provided by the invention has a built-in high speed multi-core signal processing chip which adopts a multiprocessor system, and the multiprocessor system consists of a universal processor kernel and a high-performance application-specific processor, thereby forming the high speed multi-core DSP platform. The DSP platform has the operational capability of 500 billion times per second, so that the AVS video coder provided by the invention realizes multi-thread, multi-core and multi-task digital signal processing capability, the real-time compression processing and transmission of video data and the high-speed real-time processing of video signals, and finishes AVS-based real-time high-definition signal coding.

Description

technical field [0001] The invention relates to the technical field of multimedia video and audio compression coding, in particular to the field of video encoders supporting the AVS standard. Background technique [0002] AVS (Audio Vicleo Coding Standard-ard) is an audio and video coding standard independently formulated by my country and has independent intellectual property rights. Due to the large amount of video data, the video data coding operation processor has powerful processing capabilities. DSP (Digital Signal Processor Digital Signal Processor) has powerful computing capabilities and is an important field for realizing AVS standard encoding. The AVS standard has been put forward for a short time, and there are few examples of AVS encoders implemented on DSP, and they are still in the process of research and development and exploration. [0003] The multi-core task scheduling of AVS encoder is the key to fully utilize the processor performance. In order to meet t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/436
Inventor 秦绮玲刘亚平
Owner 苏州汉辰数字科技有限公司
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