Compression method based on HEVC

A compression method and video technology are applied in the field of video multimedia coding to achieve the effect of improving compression efficiency

Active Publication Date: 2015-04-15
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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Problems solved by technology

Parallelization research for HEVC is mainly focused on multi-core parallel implementation and GPU (full name Graphic Processing

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  • Compression method based on HEVC
  • Compression method based on HEVC
  • Compression method based on HEVC

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[0026] The following describes the implementation of the present invention through specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other if there is no conflict.

[0027] It should be noted that the illustrations provided in the following embodiments only illustrate the basic idea of ​​the present invention in a schematic manner. The figures only show the components related to the present invention instead of the number, shape, and number of components in actual i...

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Abstract

The invention provides a compression method based on HEVC, and is applied to the field of video multimedia coding. The method comprises the following steps: obtaining a video data flow to be compressed with a YUV format; splitting the video data flow to be compressed into a plurality of video data segments, with continuous video frames, matched with the number of current computing cores according to an MPI message passing model, and outputting the video data segments; respectively reading the video data segments matched with the computing cores and carrying out synchronous HEVC coding compression calculation on the video data segments by the computing cores to obtain a plurality of corresponding video binary code streams and storing the video binary code streams; merging the video binary code streams to obtain an HEVC format video file corresponding to the video data flow to be compressed. Through a parallelizing mechanism, multimedia video frames are distributed on the different computing cores, and coding compression is also carried out, so that the efficiency for HEVC compression is greatly improved.

Description

technical field [0001] The present invention relates to the field of video multimedia coding, and more specifically, relates to an HEVC-based compression method. Background technique [0002] Video compression is already one of the essential home entertainments in our lives, without it, we would live in a world with only a few dozen TV channels worldwide, which is unimaginable right now . Digital technology first appeared in the UK. At that time, people already had TV sets. Through the continuous evolution of digital technology, the number of terrestrial TV channels has rapidly grown from 5 to more than 30, greatly enriching people's daily life entertainment. [0003] There are five common coding algorithms for high-definition video: MPEG2-TS, MPEG4, H.264, VC-1, and AVS. [0004] MPEG (full name Moving Pictures Experts Group, Chinese translation: Moving Picture Experts Group) is an international organization dedicated to audio and video compression coding schemes, establi...

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Application Information

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IPC IPC(8): H04N19/436H04N19/42
Inventor 陈芋文张矩钟坤华刘磊锋
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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