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Method, device and system for implementing video mixed broadcasting

An implementation method and video technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of inability to guarantee the quality of Internet video live broadcast services and high requirements for unicast real-time performance

Active Publication Date: 2019-04-30
CHINA MOBILE GROUP JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method, device and system for implementing video mixed broadcasting, which is used to solve the current problem that the quality of Internet video live broadcast services cannot be guaranteed due to the high real-time requirements of RTP-based unicast

Method used

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  • Method, device and system for implementing video mixed broadcasting
  • Method, device and system for implementing video mixed broadcasting
  • Method, device and system for implementing video mixed broadcasting

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Embodiment 1

[0073] Embodiment 1 of the present invention provides a method for implementing video mixing, such as figure 1 As shown, it is a schematic flowchart of the implementation method of video mixing broadcasting in Embodiment 1 of the present invention, and the method may include the following steps:

[0074] Step 101: When determining that there is no RTP multicast flow, the terminal exits the multicast channel and records the timestamp and serial number of the last RTP data packet received through the multicast channel.

[0075] It should be noted that the terminal can be any terminal such as a set-top box terminal, as long as it can support IGMP (Internet Group Management Protocol, Internet Group Management Protocol), RTSP (Real Time Streaming Protocol, real-time transport protocol) / TS, HLS protocols, etc. Yes, this embodiment of the present invention does not describe it in detail.

[0076] Step 102: Send a unicast play request to the central content distribution management pl...

Embodiment 2

[0104] Embodiment 2 of the present invention takes the execution of the central content distribution management platform as an example to further describe the implementation method of video mixed broadcasting described in Embodiment 1 of the present invention, as follows figure 2 As shown, it is a schematic flowchart of the implementation method of video mixing broadcasting described in Embodiment 2 of the present invention, and the method may include the following steps:

[0105] Step 201: The central content distribution management platform receives the unicast play request sent by the terminal. The unicast play request is for the terminal to distribute and manage content to the center according to the preset unicast address when the terminal determines that there is no RTP multicast stream. It is sent by the platform, and the unicast play request carries the timestamp and serial number of the RTP data packet last received by the terminal through the multicast channel.

[0...

Embodiment 3

[0126] Embodiment 3 of the present invention takes the implementation of the correction controller as an example to further describe the implementation method of video mixing in Embodiment 1 of the present invention, as follows image 3 As shown, it is a schematic flowchart of the implementation method of video mixing broadcasting described in Embodiment 3 of the present invention, and the method may include the following steps:

[0127] Step 301: The correction controller receives the time stamp correction instruction issued by the central content distribution management platform, and the time stamp correction instruction carries the last RTP data packet received by the terminal through the multicast channel when it is determined that there is no RTP multicast flow timestamp and number.

[0128] Step 302: According to the time stamp correction instruction, calibrate the time stamp and serial number of the RTP data packet to the HLS fast forward and fast rewind index, and the ...

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Abstract

The invention discloses a realization method of video mixture play, an apparatus and a system thereof. The method comprises the following step that when determining that an RTP multicast has no flow, a terminal realizes play of an HLS unicast flow according to HLS unicast flow data issued by a center content distribution management platform based on an HLS fast forward and fast backward index, wherein the HLS fast forward and fast backward index is acquired by a correction controller through calibrating a time stamp and a number of an RTP data packet finally received by a terminal through a multicast channel, and includes corresponding relations of the HLS time stamp and a fragment, and the HLS time stamp and a fragment byte offset amount. Therefore, conversion to an HLS unicast when the RTP multicast has no flow is realized. Compared to an existing scheme of realizing multicast no-flow conversion based on RTP, by using the method, the apparatus and the system of the invention, switching to a code rate is realized according to an actual condition of a terminal user bandwidth, and a good video play experience is provided for a user in a non-guaranteed network.

Description

technical field [0001] The present invention relates to the technical field of data services, in particular to a method, device and system for realizing mixed video broadcasting. Background technique [0002] With the continuous development of Internet communication technology and multimedia technology, and the continuous popularization of broadband networks, Internet video services are also rapidly emerging. For the Internet video live broadcast service, the existing mainstream technologies include two forms: unicast and multicast. That is, when the terminal side receives the live stream, it can receive the live stream in the form of unicast or multicast. However, if the terminal side receives the live stream in the form of multicast, it may be difficult to realize the live broadcast based on multicast deployment due to the limitation of the equipment support on the terminal side. At this time, it is necessary to solve the problem of switching to unicast when there is no mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/6437H04N21/6408H04N21/6405H04N21/845
CPCH04N21/6405H04N21/6408H04N21/6437H04N21/8456
Inventor 谢柯解锦明俞洋
Owner CHINA MOBILE GROUP JIANGSU