Fast advanced video encoding rate computing method and apparatus thereof

A computing device and video coding technology, which is applied in the direction of television, pulse modulation television signal transmission, electrical components, etc., can solve the problem of low estimation speed of residual block rate, etc., and achieve the effect of improving rate computing capability.

Active Publication Date: 2010-08-04
SHANGHAI FULLHAN MICROELECTRONICS
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Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of fast parallel rate calculating method and its device that are applicable to AVS coder, solve the problem that residual block rate estimation speed is low in the AVS coding, improve for high-definition format or multi-channel video AVS real-time coder rate computing power

Method used

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  • Fast advanced video encoding rate computing method and apparatus thereof
  • Fast advanced video encoding rate computing method and apparatus thereof
  • Fast advanced video encoding rate computing method and apparatus thereof

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Embodiment approach

[0029] The following describes the structure and workflow of the parallel fast rate calculation device applicable to the AVS encoder under N=8. The input residual coefficient from the integer transformation module is a 1x8 block per cycle, and the horizontal direction is sequentially input from high frequency to low frequency.

[0030] Such as figure 1 , the parallel fast rate calculation device applicable to AVS encoders comprises a parallel scanning device 1, a parallel level run length detection device 2, a parallel table selection device 3, a parallel level run rate calculation device 4, and a bit number accumulator 5, and the above devices are sequentially The serial connection also includes the basic syntax element rate calculation means 6 which is also connected to the input end of the bit number accumulator.

[0031] First, the parallel scanning device 1 processes the 8x8 residual data block to complete scanning. Except for the last cycle, 9 data are output in paralle...

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Abstract

The invention provides a method for calculating video encoding rate and a video encoding rate calculating device adopting the method, which is characterized in that the calculating device comprises a parallel scanning device, a parallel level run detecting device, a parallel meter selecting device, a parallel level run rate calculating device and a bit number accumulator which are connected in sequence. The video encoding rate calculating device provided by the invention solves the problem that the estimating speed of residual error block rate in a AVS encoder is low, so that the calculating capability of the high definition AVS real time encoder or the multi-path AVS real time encoder video is enhanced.

Description

technical field [0001] The invention belongs to the field of digital video processing, and relates to a video fast rate calculation method and a device thereof, in particular to a parallel fast rate calculation method and a device suitable for advanced audio and video coding encoders. Background technique [0002] With the continuous development of the audio and video industry, the international audio and video codec technology is becoming more and more mature. JVT has launched the MPEG-4 AVC / H.264 international standard for video coding technology, and my country has launched the national standard for audio and video coding standard AVS (Advanced Audio-Video Coding Standard in Information Technology, information technology advanced audio and video coding). These video coding standards can efficiently compress video signals with a huge amount of information while maintaining the subjective quality of the video, greatly reducing storage space and network bandwidth requirement...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/24H04N7/26H04N7/50
Inventor 诸悦金永明高厚新万建军
Owner SHANGHAI FULLHAN MICROELECTRONICS
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