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Apparatus and method for low latency video encoding

A video coding and video technology, applied in the field of very low-latency video coding, which can solve problems such as large delays

Inactive Publication Date: 2018-03-06
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Accordingly, higher bitrate bitstreams result in greater latency

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  • Apparatus and method for low latency video encoding
  • Apparatus and method for low latency video encoding
  • Apparatus and method for low latency video encoding

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Embodiment Construction

[0047] The ensuing description is of the best mode for carrying out the invention. This description is intended only to illustrate the general spirit of the invention, not to limit it. The scope of the present invention is determined with reference to the appended claims.

[0048] In order to reduce the delay of the video link at the record / transmit end, play / receive end or both, the present invention provides a system that coordinates the data access and processing time among the various processing modules of the system.

[0049] Figure 7A is an illustration of the encoding process of a video encoder according to an embodiment of the present invention, wherein the video input is written to the buffer line by line, and the CTU size is assumed to be 32x32. exist Figure 7A Among them, the source buffer state (source buffer state) 710 corresponds to a period during which the image signal processing (image signal processing, ISP) module writes image data line by line in the f...

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Abstract

An apparatus and method for video encoding with low latency is disclosed. The apparatus comprises a video encoding module to encode input video data into compressed video data, one or more processingmodules to provide the input video data to the video encoding module or to further process the compressed video data from the video encoding module, and one data memory associated with each processingmodule to store or to provide shared data between the video encoding module and each processing module. The encoding module and each processing module are configured to manage data access of one datamemory by coordinating one of the video encoding module and one processing module to receive target shared data from one data memory after the target shared data from another of the video encoding module and one processing module are ready in said one data memory. The video encoding system reduces delay of video links on recording / transmitting ends, play / receiving ends, or both ends.

Description

[0001] priority statement [0002] This application claims the benefit of U.S. Provisional Patent Application No. 62 / 374,966, filed August 15, 2016, and U.S. Patent Application No. 15 / 642,586, filed July 6, 2017, and filed as Incorporated herein by reference. technical field [0003] The present invention is related to video coding. More specifically, the present invention relates to very low-latency video encoding by managing data access and processing time among multiple processing modules. Background technique [0004] Video data requires a large storage space for storage or a wide bandwidth for transmission. With the development of high resolution and higher frame rate, if video data is stored and transmitted in uncompressed form, its storage and transmission requirements will be difficult to handle. Therefore, video data is usually stored and transmitted in a compressed form using video coding techniques. By using newer video compression formats such as H.264 / AVC, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/434H04N19/433H04N19/61H04N19/70
CPCH04N21/23608H04N19/433H04N19/61H04N19/70H04N21/4341H04N21/4342
Inventor 吴东兴蔡宗桦李韦磬陈联霏陈立恒周汉良林亭安黄翊鑫
Owner MEDIATEK INC