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Packetization of layered media bitstreams

A media packet, laminar flow technology, applied in the field of network flow, which can solve problems such as bandwidth efficiency and difficulty in preventing data loss

Inactive Publication Date: 2010-02-24
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For network streams with media data, it is difficult to simultaneously achieve bandwidth efficiency and prevent data loss

Method used

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  • Packetization of layered media bitstreams
  • Packetization of layered media bitstreams
  • Packetization of layered media bitstreams

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Embodiments described herein relate to packets containing encoded video information. However, these video examples are not intended to limit the invention, the scope of which generally includes packets containing encoded media information, relating to any media such as video, audio, etc.

[0016] Packetizing a video stream involves the process of encapsulating video packets that encode video information into network packets to form a video stream. The video stream (or video bitstream) may be sent from the sender using Real Time Protocol (RTP) network packets, among other things. The words "stream" and "bitstream" have the same meaning here and can be used interchangeably. The real-time protocol is published as Request for Comments (RFC) 1889 by the Internet Engineering Task Force (IETF).

[0017] The RTP network packet includes an RTP header and a payload including encoded video information obtained from the video packet. The RTP header carries timing and sequence in...

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PUM

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Abstract

The present invention provides a network streams and a method for encapsulating media packets having data therein into the network streams. The network streams includes a base layer stream and an enhancement layer stream. Base-layer media packets are encapsulated into the network packets of the base layer stream, wherein each network packet of the base layer stream includes one, and no more than one, corresponding base-layer media packet. Enhancement-layer media packets are encapsulated into the network packets of the enhancement layer stream, wherein a first portion and a second remaining portion of any enhancement-layer media packet may be respectively included in successive network packets of the enhancement layer stream in order to have each network packet of the enhancement layer stream filled to a constant number of bits that does not exceed a maximum number of bits. The media packets are, but not limited to, video packets or audio packets.

Description

technical field [0001] The present invention relates to a network stream and a method for encapsulating media packets with encoded media data therein to the network stream. Background technique [0002] For network streams with media data, simultaneously achieving bandwidth efficiency and preventing data loss is difficult. There is therefore a need to enhance network efficiency and prevent data loss. Contents of the invention [0003] The present invention provides a method for encapsulating a media packet containing data into a network stream of media data, comprising: [0004] providing base layer media packets corresponding to a base layer stream of the network stream, the base layer stream comprising network packets; [0005] providing an enhancement layer media packet corresponding to an enhancement layer stream of the network stream, the enhancement layer stream including network packets, wherein there is a one-to-one correspondence between the base layer media pac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04N7/24
CPCH04N21/4381H04N21/4363H04N21/64792H04N21/6437H04L12/66H04L29/06027H04N21/234327H04N21/631H04L65/608H04N21/2381H04N21/23611H04N21/2662H04L65/80H04L65/1016H04L65/65H04L2012/5603H04L65/1101
Inventor C·鲁伊滋弗洛里亚奇Y·陈
Owner KONINK PHILIPS ELECTRONICS NV