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Information processing apparatus and method

一种信息处理设备、代码流的技术，应用在图像通信、数字视频信号修改、电视等方向，能够解决延迟时间长、整体处理处理时间变长、运动图像数据等待时间长等问题，达到减少延迟时间的效果

Inactive Publication Date: 2010-12-01
SONY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the delay time (wait time) from when the personal computer supplies the code stream to the decoder until its encoded result is obtained is long, the processing time of the overall processing performed by the personal computer becomes long
[0005] In particular, the codec I / F of the application software that performs general conversion and functions is usually decoded frame by frame, so the waiting time for the overall moving image data becomes longer

Method used

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  • Information processing apparatus and method
  • Information processing apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0033] 1. First Embodiment (Low Delay Decoding Processing)

[0034] 2. Second Embodiment (Personal Computer)

[0035]

[0036] [Constitution of equipment]

[0037] figure 1 It is a block diagram showing a configuration example of an information processing system to which the present invention is applied.

[0038] figure 1 The illustrated information processing system 100 is a system in which a personal computer 101 supplies a code stream in which image data is encoded to a decoding processing unit 102 via a bus 103 to cause the decoding processing unit 102 to decode the code stream, and the personal computer 101 supplies a code stream via a bus 103 Get the decoding result.

[0039] The code stream is obtained by encoding image data through MPEG 4 Simple Studio Profile (hereinafter referred to as SStP). That is, the decoding processing unit 102 decodes the code stream with a short latency by the MPEG 4SStP method which is intra-frame compression.

[0040] The personal c...

no. 2 approach

[0125] [Personal computer]

[0126] The above-described series of processing can be executed by hardware, and can also be executed by software. In this case, for example, it can be configured as Figure 10 personal computer shown.

[0127] exist Figure 10 Among them, the CPU 401 of the personal computer 400 executes each program according to the program stored in the ROM (Read Only Memory) 402 or the program loaded from the storage unit 413 to the RAM (Random Access Memory) 403. kind of treatment. Data necessary for the CPU 401 to perform various processes are also appropriately stored in the RAM 403 .

[0128] The CPU 401 , ROM 402 , and RAM 403 are connected to each other via a bus 404 . An input / output interface 410 is also connected to the bus 404 .

[0129] An input unit 411 composed of a keyboard, a mouse, etc., a display composed of a CRT (Cathode Ray Tube, cathode ray tube) or an LCD (Liquid Crystal Display, liquid crystal display), etc. The output unit 412, th...

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PUM

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Abstract

The present invention relates to an information processing apparatus and a method thereof, capable of further reducing latency of decoding processing. An information processing apparatus includes: an analysis means for analyzing a code stream in which picture data is encoded during transmission; a dividing position determination means for determining a dividing position of the code stream in accordance with a picture size of the picture data based on an analysis result by the analysis means; and a decoding means for decoding code streams in plural units of division in parallel, which are obtained by the code stream being divided at the dividing position determined by the dividing position determination means. The invention is applied on the decoding means.

Description

technical field [0001] The present invention relates to an information processing device and method, and in particular, to an information processing device and method capable of further reducing the delay time of decoding processing. Background technique [0002] Conventionally, there is a decoding device that decodes a code stream obtained by encoding a moving image using an encoding method called MPEG (Moving Picture Experts Group). Among the standardized MPEG series, MPEG 2 is more common. Recently, the compression coding method of MPEG 4 and AVC (Advanced Video Coding, Advanced Video Coding) which has increased the compression rate has also been standardized. [0003] When decoding the above-mentioned code stream in a personal computer, there is a decoding method that uses a hardware-configured decoder for decoding, and the decoder is added to the personal computer through an expansion board or the like, for example. [0004] In the above case, when the personal comput...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/30H04N19/00H04N19/102H04N19/134H04N19/136H04N19/152H04N19/167H04N19/423H04N19/44H04N19/46H04N19/70
CPCH04N19/00521H04N19/0026H04N19/17H04N19/436
Inventor 友永宪高田敏男
Owner SONY GRP CORP