KR101873675B1 - Method for Transmitting Audio Content Information in Network-based Audio Video Bridging System - Google Patents

Method for Transmitting Audio Content Information in Network-based Audio Video Bridging System Download PDF

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Publication number
KR101873675B1
KR101873675B1 KR1020170010930A KR20170010930A KR101873675B1 KR 101873675 B1 KR101873675 B1 KR 101873675B1 KR 1020170010930 A KR1020170010930 A KR 1020170010930A KR 20170010930 A KR20170010930 A KR 20170010930A KR 101873675 B1 KR101873675 B1 KR 101873675B1
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KR
South Korea
Prior art keywords
content
data unit
audio
information
audio content
Prior art date
Application number
KR1020170010930A
Other languages
Korean (ko)
Inventor
송병철
박경원
위정욱
김동현
Original Assignee
전자부품연구원
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Priority to KR1020170010930A priority Critical patent/KR101873675B1/en
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Publication of KR101873675B1 publication Critical patent/KR101873675B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/233—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4394—Processing of audio elementary streams involving operations for analysing the audio stream, e.g. detecting features or characteristics in audio streams

Abstract

A method for transmitting audio content information in a network-based AVB system is provided. A method of transmitting content information according to an embodiment of the present invention includes storing information on audio content in a data unit used in a network-based content transmission protocol, and transmitting the data unit. Accordingly, in the network-based AVB system, a listener can receive and process the audio content transmitted by the plurality of talkers and related information on the audio content to be transmitted next.

Description

[0001] The present invention relates to a method for transmitting audio content information in a network-based AVB system,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to network-based audio content utilization techniques, and more particularly, to a method for transmitting information about audio content in a network-based AVB system.

In the conventional network-based AVB (Audio Video Bridging) system, only information that the listener can grasp from the data received from the talker is the talker, which can be confirmed through the packet length and the MAC address.

Accordingly, in the conventional network-based AVB system, the listener can not acquire the relevant information about the audio content transmitted by the talker, so that the user can listen to the audio content transmitted by the talker, Time, singer, etc. can not be known.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for transmitting audio-related information in a network-based AVB system and a system using the same.

According to an aspect of the present invention, there is provided a method of transmitting content information, the method comprising: storing information on audio content in a data unit used in a network-based content transmission protocol; And transmitting the data unit.

In the recording step, an indicator for instructing recording of the audio content information may be stored in a specific field of the data unit.

Further, the transmitting step may periodically transmit the data unit between the content packets.

And, the transmission period may be variable.

In addition, the transmission period in the content change period may be shorter than the transmission period in the other period.

The audio content includes a first type audio content and a second type audio content, and the type of information about the second type audio content may be different from the type of information about the first type audio content .

In addition, the information on the audio content may include at least one of a Content title, a Singer, a Start time, and a Playing time.

The information on the audio content may further include at least one of Next Content title, Next Singer, Next Start time and Next Playing time.

According to another aspect of the present invention, there is provided a method of transmitting content information, the method comprising: displaying information on audio content for each audio talker; Receiving an audio talker from a user; Connecting to the audio talker selected by the user to receive the audio content

According to another aspect of the present invention, there is provided a content transmitting apparatus including: a processor for storing information on audio content in a data unit used in a network-based content transmission protocol; And a communication unit for transmitting the data unit generated by the processor.

According to another aspect of the present invention, there is provided a method of providing content information, the method comprising: receiving a data unit used for a network-based content transmission protocol, the data unit including information on audio content; And displaying information on the audio contents stored in the received data unit.

According to another aspect of the present invention, there is provided a content receiving apparatus including: a communication unit for receiving a data unit used for a network-based content transmission protocol, the data unit including information on audio contents; A display unit for displaying information; And a processor for displaying information on the audio contents recorded in the data unit received by the communication unit on the display unit.

As described above, according to the embodiments of the present invention, in the network-based AVB system, talkers transmit content information (content information) between stream packets, so that a listener transmits audio content transmitted by a plurality of talkers, It is possible to receive and process related information about the audio content to be transmitted to the user.

In addition, since the CITP protocol presented in the embodiments of the present invention can embed the existing network-based AVB protocol, it is possible to transmit audio content information while using the existing system as it is.

In addition, according to the embodiments of the present invention, listeners such as amplifiers and speakers can receive / reproduce audio contents selectively using the audio content information transmitted by the talkers.

1 is a diagram illustrating a network-based AVB system to which the present invention is applicable,
2 shows a CITP data packet structure using IEEE1722-AVTPDU,
3 is a detailed structure diagram of CITP data,
FIG. 4 is a flowchart illustrating a method of providing audio content information according to an exemplary embodiment of the present invention.
FIG. 5 is a detailed block diagram of the Talker device shown in FIG. 1,
6 is a detailed block diagram of the Listener device shown in FIG.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a diagram illustrating a network-based AVB system to which the present invention is applicable. As shown in FIG. 1, an AVB system to which the present invention can be applied is constructed by connecting a Talker device 100, a Listener device 200, and a Manager device 300 so that they can communicate with each other via a network.

Indeed, it is common for the Talker device 100, the Listener device 200, and the Manager device 300 to be implemented in multiple, but for convenience of illustration and illustration, only one of each is shown in FIG.

The Talker device 100 is a transmitting terminal that transmits a stream (AV stream or audio stream) to the Listener device 200 via the network. The Listener device 200 receives a stream from the Talker device 100 via a network and outputs the stream Receiver (display, amplifier, speaker, etc.).

Manager device 300 controls and manages the Talker device 100 and the Listener device 200 constituting the AVB system.

In an embodiment of the present invention, the Talker device 100 transmits audio content-related information together in transmitting the audio content.

Specifically, the Talker device 100 implements the Content Information Transport Protocol (CITP) proposed in the embodiment of the present invention as a protocol for transmitting audio content information to the IEEE 1722 protocol for transmitting AV data, And transmits / provides the title, singer, and time information of the audio content.

In CITP, a packet structure for transmitting audio-related information using the basic structure of IEEE 1722-AVTPDU (Audio Video Transport Protocol Data Unit) is shown, which is shown in FIG.

In order to transmit the status information to the CITP, an indicator indicating the CITP is included in the subtype field in the IEEE1722-AVTPDU, for example, 10 16 of 08 to 6D 16 of the subtype field. In the basic format of the IEEE1722-AVTPDU, Includes CITP data.

The illustrated data is transmitted between the IEEE1722 media packets transmitted by the Talker device 100, and may be transmitted according to a predetermined transmission period, for example, once every 10 seconds, and the transmission period may be varied.

For example, it can be implemented to transmit once every second for five seconds (audio content change period) before the current audio content is changed to the next audio content, and once for every ten seconds thereafter.

Hereinafter, the CITP data will be described in detail with reference to FIG. 3 is a detailed structural diagram of CITP data.

3, the CITP data includes a length field, a live content field, a reserved field, a content title field, a Singer field, a Start time field, a Playing time field, a Next Content title field, a Next Singer field, , And a Next Playing time field.

The length field is a field indicating the length of the CITP data, and the Reserved field is an optional reserved area for a new packet to be added later.

The Live Content field is a field that indicates the attribute of the audio content. When 1 is recorded in the Live Content field (in case of live audio content), only the Content title field and the Singer field are transmitted in the CITP data. (If it is not live audio content) all the fields that make up the CITP data are stored and transmitted.

The content title field contains the title of the audio content currently being played, and has a length of 48 bytes for each language.

The Singer field is a field for storing the number (artist) of the audio content currently being reproduced, and has a length of 32 bytes for each language.

The Start time field is a field in which the reproduction start time of the audio content currently being reproduced is recorded, and is a time represented by the current time instead of the presentation time.

The Playing time field is a field in which the reproduction time of the audio content currently being reproduced is recorded. Like the Start time, the Playing time field may be a time represented by the current time instead of the presentation time.

The Next Content title field is a field containing the title of the audio content to be reproduced next, and has a length of 48 bytes for each language.

The Next Singer field is a field for storing the number (artist) of audio contents to be reproduced next, and has a length of 32 bytes for each language.

The Next Start time field is a field for storing the reproduction start time of the audio content to be reproduced next, and is a time represented by the present time instead of the presentation time.

The Next Playing time field is a field for storing the reproduction time of the audio content to be reproduced next. Like the Next Start time, the Next Playing time field may be a time represented by the current time instead of the presentation time.

4 is a flowchart illustrating a method of providing audio content information according to an exemplary embodiment of the present invention.

As shown in FIG. 4, the listener device 200 receives CITP data from a plurality of Talker devices (S410).

In operation S420, the listener device 200 displays the audio content currently being reproduced by the Talker devices and the audio content to be reproduced next by the Talker device using the CITP data received in step S410.

Then, the listener device 200 allows the user to select a desired Talker device (S430).

Next, the listener device 200 connects to the Talker device selected by the user in step S440, and plays / outputs the audio content received from the connected Talker device in step S450.

5 is a detailed block diagram of the Talker device 100. FIG. As shown in FIG. 5, the Talker device 100 includes a communication unit 110, a processor 120, and a storage unit 130.

The communication unit 110 is a communication interface means for establishing and maintaining a communication connection with the Listener device 200 and the Manager device 300. The storage unit 130 is a storage medium storing contents to be transmitted.

The processor 130 periodically generates and transmits the data unit shown in FIG. 2 in which the content data is transferred and the CITP data shown in FIG. 3 is stored during the content transfer.

FIG. 6 is a detailed block diagram of the listener device 200. FIG. 5, the listener device 200 includes a communication unit 210, a display unit 220, a processor 230, a storage unit 240, and an output unit 250. [

The communication unit 210 is a communication interface means for establishing and maintaining a communication connection with the Talker device 100 and the Manager device 300. The storage unit 240 is a storage medium for temporarily storing received contents.

The display unit 220 displays the current / next audio content information received from the Talker device 100 through the communication unit 210 and the output unit 250 receives the information from the Talker device 100 through the communication unit 210 / RTI > of the current audio content.

The processor 230 performs the procedure necessary for receiving the content data, and in particular performs the procedures shown in Fig.

Up to now, preferred embodiments of the method for transmitting audio content information in the network-based AVB system have been described in detail.

It goes without saying that the technical idea of the present invention can also be applied to a computer-readable recording medium having a computer program for performing the functions of the apparatus and method according to the present embodiment. In addition, the technical idea according to various embodiments of the present invention may be embodied in computer-readable code form recorded on a computer-readable recording medium. The computer-readable recording medium is any data storage device that can be read by a computer and can store data. For example, the computer-readable recording medium may be a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical disk, a hard disk drive, or the like. In addition, the computer readable code or program stored in the computer readable recording medium may be transmitted through a network connected between the computers.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

100: Talker device
200: Listener device
300: Manager device

Claims (12)

The method comprising: storing information on audio content in a data unit used in a network-based content transmission protocol; And
And transmitting the data unit,
In the transmitting step,
Data units are periodically transmitted between the content packets,
The transmission period of the data unit in the content-
And the transmission period of the data unit is shorter than the transmission period of the data unit in the other intervals.
The method according to claim 1,
In the recording step,
And an indicator for instructing recording of the audio content information is recorded in a specific field of the data unit.
delete delete delete The method according to claim 1,
The audio content includes a first type of audio content and a second type of audio content,
Wherein the type of information for the second type of audio content is different from the type of information for the first type of audio content.
The method according to claim 1,
For information about audio content,
A Content title, a Singer, a Start time, and a Playing time.
The method of claim 7,
For information about audio content,
Next Content title, Next Singer, Next Start time and Next Playing time.
The method according to claim 1,
Displaying information on the audio contents by audio talker;
Receiving an audio talker from a user;
The method of claim 1, further comprising: receiving audio content by connecting to an audio talker selected by the user.
A processor for storing information about audio content in a data unit used in a network-based content transmission protocol; And
And a communication unit for transmitting the data unit generated by the processor,
The communication unit,
Data units are periodically transmitted between the content packets,
The transmission period of the data unit in the content-
Is shorter than the transmission period of the data unit in the other period.
A data unit used in a network-based content transmission protocol, the method comprising: receiving a data unit containing information on audio content; And
And displaying information on the audio contents stored in the received data unit,
In the receiving step,
Receiving data units periodically between content packets,
In the content change period,
Is shorter than the reception period of the data unit in other intervals.
1. A data unit used in a network-based content transmission protocol, comprising: a communication unit for receiving a data unit containing information on audio contents;
A display unit for displaying information; And
And a processor for displaying on the display unit information about the audio contents recorded in the data unit received by the communication unit,
The communication unit,
Receiving data units periodically between content packets,
In the content change period,
Is shorter than the reception period of the data unit in the other interval.
KR1020170010930A 2017-01-24 2017-01-24 Method for Transmitting Audio Content Information in Network-based Audio Video Bridging System KR101873675B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111246244A (en) * 2020-02-04 2020-06-05 北京贝思科技术有限公司 Method and device for rapidly analyzing and processing audio and video in cluster and electronic equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101627796B1 (en) * 2015-01-30 2016-06-08 전자부품연구원 Device Indicator Data Transmitting Method for Network based AV System

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101627796B1 (en) * 2015-01-30 2016-06-08 전자부품연구원 Device Indicator Data Transmitting Method for Network based AV System

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111246244A (en) * 2020-02-04 2020-06-05 北京贝思科技术有限公司 Method and device for rapidly analyzing and processing audio and video in cluster and electronic equipment
CN111246244B (en) * 2020-02-04 2023-05-23 北京贝思科技术有限公司 Method and device for rapidly analyzing and processing audio and video in cluster and electronic equipment

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