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Device and method for switching real-time media streams

A media stream and device technology, applied in the field of devices and methods for switching real-time media streams, can solve problems such as lack of switching

Active Publication Date: 2017-06-27
INST FUER RUNDFUNKTECHNIK GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] While there are existing standards for real-time media streaming over IP-based networks with the SMPTE 2022 family of standards and in particular the standard SMPTE2022-6 (entitled "High Bit Rate Media Transport over IP Networks (HBRMT)" in English) Technical solutions allow the transmission of digital video streams provided in SDI format (also known as "SDI over IP (SDI over IP)") over IP-based networks, but have so far lacked solutions for transparently Suitable technical solutions for switching such signals (i.e. between two chronologically consecutive access units)

Method used

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  • Device and method for switching real-time media streams
  • Device and method for switching real-time media streams
  • Device and method for switching real-time media streams

Examples

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Embodiment Construction

[0039] In the present description and the drawings, the same reference numerals are used to designate the same or corresponding parts, respectively, in order to avoid repetition, to the extent that further distinction is unnecessary or inappropriate.

[0040] figure 1 shown for switching one or more sources Q in the first switching state 1 , Q 2 , Q 3 Switch real-time media streams to one or more sinks 1 , S 2 , S 3 A schematic and exemplary embodiment of the device 1.

[0041] as source Q 1 , Q 2 , Q 3 , here exemplarily providing the corresponding source port QA connected to device 1 1 、QA 2 、QA 3 of the three TV cameras, and as the sink s 1 , S 2 , S 3 , provided the corresponding sink port SA is connected to device 1 1 、SA 2 、SA 3 Two monitors and digital editing suite.

[0042] In this example, two cameras Q 1 and Q 3 are connected to the corresponding source port QA of device 1 via Ethernet cable 2 1 and QA 3 , and create the digital video stream di...

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Abstract

The invention relates to a device (1) for switching real-time media streams of one or more sources (Q1, Q2, Q3) to one or more sinks (S1, S2, S3). The device (1) includes one or more source ports (QA1, QA2, QA3) for connecting one or more sources (Q1, Q2, Q3) and one or more sinks (S1, S2, S3 ) of one or more sink ports (SA1, SA2, SA3). The device (1) is adapted to provide a switching sink (SS) and switch it to a real-time media stream of a first source (Q1). The switching sink (SS) is adapted to receive the real-time media stream of the first source (Q1) in packet-switched format and to forward the received real-time media stream in packet-switched format, wherein the packets are provided during the forwarding with the The first multipoint destination address (IPMZS) of the switching sink (SS) in order to allow connection of one or more sinks (S2) with the real-time media stream of the first source (Q1) forwarded by the switching sink (SS). A Switching Sink (SS) represents the source of a live media stream forwarded by a Switching Sink (S1, S2, S3) from the "viewpoint" of a Sink (S1, S2, S3) connected to the The point destination address (IPMZS) is connected to it. A transparent switching process within the device ( 1 ) can be realized if the switching sink / source (SS) is configured switchable as an element or component, respectively, of the device ( 1 ).

Description

technical field [0001] The present invention relates to devices and methods for switching real-time media streams from one or more sources to one or more sinks. Furthermore, the invention relates to a corresponding computer program. Background technique [0002] In the world of professional TV studios, it is common to connect a source of live media streams, such as a TV camera producing a live video stream, to the An appropriate sink connection such as a suitable studio monitor or digital editing suite. The SDI interface allows the transmission of uncompressed, unencrypted digital video streams (and optionally embedded timecode streams and / or audio streams) over coaxial cables or optical waveguides, and includes ”) specifies an entire family of standards for different video formats and bitrates. The standard SMPTE 259M (English "Standard Definition"), also known as SD-SDI thus defines, for example, a PAL video signal (English "progressive") in 576i format (English "interl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/236H04N21/643H04L69/14
CPCH04L12/18H04N21/23602H04N21/64322H04N21/47H04N21/42204
Inventor M.拉亚布斯M.伯格A.梅茨A.沃格S.兰格汉斯H.吉斯特S.豪森兰德
Owner INST FUER RUNDFUNKTECHNIK GMBH