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Video decoding and rendering with joint jitter-frame buffer area

A video decoder and buffer technology, applied in the field of video encoding and decoding, can solve problems such as packet loss, real-time video transmission, bit stream decoding errors, etc.

Active Publication Date: 2016-11-16
CYBROOK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during transmission or storage of a video bitstream, packet loss or other errors may occur, resulting in errors in the decoding of sai

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  • Video decoding and rendering with joint jitter-frame buffer area
  • Video decoding and rendering with joint jitter-frame buffer area
  • Video decoding and rendering with joint jitter-frame buffer area

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Embodiment Construction

[0035] Digital video can be used for entertainment, video conferencing, advertising and generally information sharing. User expectations for digital video quality will be high, as users expect the same high spatial and temporal quality of video broadcast over the limited-bandwidth shared Internet as video broadcast over dedicated cable channels. For example, digital video coding compresses the bit stream of digital video to allow high-quality digital video transmission over networks with limited bandwidth. For example, digital video quality can be defined as the degree to which the output decompressed and decoded digital video matches the input digital video.

[0036] Video encoding and decoding integrates various technologies to compress and decompress digital video streams, so that high-quality digital video streams can be transmitted in networks with limited bandwidth capabilities. These techniques may process a digital video stream into a series of digital data blocks, pr...

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Abstract

A system, method and apparatus for decoding and encoding a multi-frame video stream using a ring (circular) buffer area are disclosed. During decoding, a decoder can receive data packets from an encoder and store thedata packets in a circular buffer. The circular buffer may store the data packets to packets that contains complete frames. Storing multiple partial or complete frames in a circular buffer area can remove jitter and allow forward error correction to continue and minimize latency by effectively aggregating complete frames.

Description

technical field [0001] The present invention relates to video encoding and decoding, and more particularly, to video decoding and rendering using a joint dither-frame buffer. Background technique [0002] A digital video bitstream can be encoded to effectively compress the video into a digital bitstream that can be stored on a non-transitory digital medium or streamed over a limited bandwidth communication channel. However, during transmission or storage of the video bit stream, packet loss or other errors may occur, resulting in errors in decoding the bit stream. It is also not uncommon for the available channel bandwidth to change from time to time, causing problems for real-time video transmission. Variations in network propagation may cause jitter, ie, a variation in latency, in packets received across the network, which is measured as the variability of packet latency over time; this jitter should be mitigated prior to rendering. Contents of the invention [0003] I...

Claims

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Application Information

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IPC IPC(8): H04N19/423H04N19/44H04N19/89H04N19/85
CPCH04N19/423H04N19/44H04N19/85H04N19/89
Inventor 谷群山
Owner CYBROOK INC