EP4424021A1 - Procédé de gestion de l'accès à une contenu a lecture d'un contenu multimedia - Google Patents
Procédé de gestion de l'accès à une contenu a lecture d'un contenu multimediaInfo
- Publication number
- EP4424021A1 EP4424021A1 EP22800657.3A EP22800657A EP4424021A1 EP 4424021 A1 EP4424021 A1 EP 4424021A1 EP 22800657 A EP22800657 A EP 22800657A EP 4424021 A1 EP4424021 A1 EP 4424021A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- content
- broadcast
- channel
- time
- multicast
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/64—Addressing
- H04N21/6405—Multicasting
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
-
- 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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26275—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists for distributing content or additional data in a staggered manner, e.g. repeating movies on different channels in a time-staggered manner in a near video on demand system
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47208—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting near-video-on-demand content
Definitions
- TITLE method for managing access to content for reading multimedia content.
- the field of the invention is that of digital multimedia content, namely digital audio and/or video content, also called audiovisual content.
- the invention relates most particularly to a method for managing the playback of multimedia content.
- the contents referred to here are contents divided into segments associated with several respective encoding bit rates selected on requests sent from a multimedia stream playback device.
- a reading device is intended for any device capable of receiving multimedia streams, for example a decoder, a mobile telephone, a tablet, etc.
- the content referred to here is content with a scheduled broadcast time.
- Such content is for example “live” content broadcast by a television channel.
- a function called “play from the beginning” or “catching up” makes it possible to resume, at any time, the program being broadcast from its beginning. For example, if a movie starts at 8:50 p.m. on a broadcasting channel (a television channel) and a user zaps on this television channel at 9:00 p.m., he can launch the "start over" function in order to be able to play the content since its beginning.
- live content streaming relies on multicast streaming technology (also referred to as “multipoint” or “group streaming” or “multicast” by those skilled in the art. of bandwidth in the network of an operator who manages the broadcast because the content is replicated as close as possible to the playback devices.
- multicast streaming technology also referred to as “multipoint” or “group streaming” or “multicast” by those skilled in the art.
- Bandwidth consumption in the operator's network therefore increases considerably due to the point-to-point transmission between the content server and all of the playback devices that have requested use of the “start over” function; for example, when the requested content is high-audience content, the number of point-to-bridge connections can become enormous and lead to a phenomenon known as bandwidth bottleneck, which affects network performance.
- the invention offers a solution that does not have the disadvantages of the state of the art.
- the subject of the invention is a method for managing access, by a playback device, to television content, characterized in that it comprises a step of obtaining, for the same content, of a set of multicast broadcast channels associated with respective broadcast times spaced apart in time, and in that a request for access to the content by the playback device comprises a step of selecting a multicast broadcast channel selected from said set.
- a management module will select one of the broadcast channels from among the set of broadcast channels. Once the broadcast channel has been selected, the playback device transmits the content access request and specifies the desired channel for receiving the content. The resumption from the beginning is therefore carried out in all cases in multicast.
- the use of multicast mode instead of unicast mode offers optimal playback quality and considerably reduces bandwidth on the network when accessing television content in “start over” mode.
- the distribution of the content being programmed at a given moment, the content being being reproduced comprises the following steps a selection of a channel from said set, the channel being chosen as a function of the time of broadcast associated with the channel and of said time of reception of the access request; and transmitting a content access request specifying the selected multicast channel for receiving the content.
- the plurality of instants of broadcast on the various multicast channels makes it possible to select a channel judiciously according to the instant of the request for access to the content.
- the channel selected to receive the content is the channel whose content broadcast time is closest to the time of the content access request.
- the channel selected to receive the content is the channel whose content broadcast time is closest to the time of the content access request.
- access in catch-up mode to content being broadcast on a channel is carried out, depending on whether the instant is before or after the moment of the request for access to the content either with a slight loss of the beginning of the content but without expectation of restitution, or with a slight expectation but in this case with a complete restitution.
- the nearest instant may be an earlier broadcast instant.
- the selected channel is the channel whose content broadcast time precedes the time of receipt of the request. In this case, when access to the content is requested, the selected channel is by default the last channel created to date. As indicated above, the catching up of the content according to this variant is carried out with a slight loss of the beginning of the content but is carried out without waiting for restitution.
- the nearest time can be a later time.
- the channel selected to receive the content is the channel whose content broadcast time is to come. In this case, when access to the content is requested, the selected channel is for example the next channel that will be created. As indicated above, the catch-up of the content according to this variant is carried out with a slight delay but in this case with a complete restitution from the beginning.
- a channel is deleted when the restitution of the content is finished on this channel. This second mode makes it possible to recover channels available for catching up with other television content.
- the set of broadcast instants is included in data representative of a program guide.
- the instants of broadcast form part of the description data associated with a content.
- a management entity has the function of accessing the broadcast instants and of selecting the optimal instant.
- the invention relates to an entity for managing access to television content whose broadcast is scheduled at a given time, characterized in that it comprises a module for selecting a channel of multicast broadcast chosen from said set following a request for access to the content.
- the invention relates to a playback device comprising a management entity as defined above.
- the invention relates to a computer program able to be implemented on an entity as defined above, the program comprising code instructions which, when it is executed by a processor , carries out the steps of the selection method defined above.
- the invention relates to a method for managing the broadcasting of a content having a scheduled broadcast time, characterized in that it comprises: a step of creating, for the same content, a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast times (11-14) spaced apart in time, a step for receiving data representative of said time chosen from said set, a step for transmitting the content via the channel associated with the selected time.
- a step of creating, for the same content, a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast times (11-14) spaced apart in time a step for receiving data representative of said time chosen from said set
- a step for transmitting the content via the channel associated with the selected time characterized in that it comprises: a step of creating, for the same content, a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast times (11-14) spaced apart in time.
- the invention relates to a management entity, called second entity, for the distribution of content having a scheduled broadcast time, characterized in that it comprises a creation module capable of creating, for the same content, of a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast instants (11-14) spaced apart in time, a module for receiving data representative of said chosen instant in said together, a transmission module capable of transmitting the content via the channel.
- a management entity called second entity, for the distribution of content having a scheduled broadcast time, characterized in that it comprises a creation module capable of creating, for the same content, of a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast instants (11-14) spaced apart in time, a module for receiving data representative of said chosen instant in said together, a transmission module capable of transmitting the content via the channel.
- the invention relates to a server comprising a second management entity as defined above.
- the invention relates to a computer program capable of being implemented on a second management entity as defined above, the program comprising code instructions which, when it is executed by a processor, carries out the steps of the method defined in connection with the second functional aspect.
- the invention relates to a first data medium on which has been stored at least one series of program code instructions for the execution of a management method as defined in conjunction with the first functional aspect.
- the invention relates to a first data medium on which has been stored at least one series of program code instructions for the execution of a management method as defined in connection with the second functional aspect.
- Such recording medium can be any entity or device capable of storing the program.
- the medium may comprise a storage means, such as a ROM, for example a CD ROM or a microelectronic circuit ROM, or else a magnetic recording means, for example a USB key or a hard disk.
- such a recording medium may be a transmissible medium such as an electrical or optical signal, which may be conveyed via an electrical or optical cable, by radio or by other means, so that the program computer it contains is executable remotely.
- the program according to the invention can in particular be downloaded onto a network, for example the Internet network.
- the recording medium may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the aforementioned display control method.
- FIG. 1 represents a computer system on which an exemplary embodiment of the invention is illustrated.
- Figure 2 is a simplified block diagram of the hardware structure of the reading device
- FIG. 3 is a simplified block diagram of the hardware structure of the server
- FIG. 4 illustrates several broadcast channels for the same content with distinct broadcast instants spread over time.
- FIG. 1 represents a computer system SYS in which is implemented a content distribution network called CDN (Content Distribution Network) by those skilled in the art from which content is transmitted to client devices or content playback devices .
- CDN Content Distribution Network
- the system comprises a single reading device.
- the invention applies to any number of reading devices.
- the reading device is for example an STB decoder.
- the multimedia content referred to here is video content corresponding to a television channel on which television programs are broadcast having a start time corresponding to a scheduled broadcast time and an end time.
- the computer system SYS includes a multimedia stream playback device STB, for example a decoder connected to a TV reproduction terminal such as a television.
- the playback device STB is connected to a port of the playback device TV playback device; the reading device and the rendering device TV rendering device could also form a single and unique device.
- the STB playback device is located in a LAN local network managed by a GTW home gateway.
- the context of the local network is given by way of example and could easily be transposed to an Internet network of the "best effort" type, a corporate network, etc.
- the gateway GTW is capable of communicating via a telecommunications network LI1 such as a wide area network WAN known to those skilled in the art.
- a telecommunications network LI1 such as a wide area network WAN known to those skilled in the art.
- the CDN is made up of servers networked together in the WAN; these servers cooperate in order to make multimedia content available to users.
- a single content server SRV will be represented in FIG. 1 to represent the CDN.
- the content server SRV is located, in our example, in the wide area network WAN.
- the content server SRV receives, for example, digital television content channels from a broadcast television network (not shown), and makes them available to client terminals, here the reading device STB.
- CNT content is made available in a given format.
- Such CNT content is, for example, content downloaded in adaptive streaming mode.
- the MPEG-DASH standard (for English “Dynamic Adaptive Streaming over HTTP", in French “dynamic adaptive streaming over HTTP") is an audiovisual format standard for broadcasting on the Internet; this standard is based on the preparation of the content in different representations of variable quality and speed, cut into segments of short duration (of the order of a few seconds), also called “chunks” by those skilled in the art.
- Each of these segments is made available individually by means of an exchange protocol between the rendering terminal and the multimedia content provider server.
- the mainly targeted protocol is the HTTP protocol, but other protocols (e.g. FTP) can also be used.
- the organization of the segments and the associated parameters are published in a description file in XML format. We will not go further into the details of this downloading mode because it is of no interest for the description of the invention.
- FIG. 2 represents an architecture of a reading device STB.
- This device STB conventionally comprises memories MEM1 associated with a processor CPU1.
- the memories can be of the ROM (Read Only Memory) or RAM (Random Access Memory) type or else Flash.
- the STB decoder can transmit content to be restored to the TV restitution device via a communication module COM12.
- This module COM12 is for example an HDMI link.
- the STB decoder communicates with the gateway via an Ethernet module for local wired communication or via a WiFi type radio module for local wireless communication with the GTW residential gateway.
- the module in question is referenced CMO11 in Figure 2.
- the STB decoder includes a downloading entity in streaming mode (not shown) capable of managing the downloading of segments.
- the decoder STB also includes a management entity MNG1, referred to as the first management entity in the following, the function of which will be described below.
- the server SRV is also equipped with at least one processor CPU2 and memories MEM2 for carrying out computer processing.
- the server is also equipped with a management entity MNG2, called the second entity, capable of managing the transmission of content from the server SRV to one or more playback devices.
- the SRV server communicates with the GTW gateway via WAN network to communicate with the GTW residential gateway.
- the module in question is referenced CMO2 in figure 3.
- the first entity performs the following steps:
- a step of obtaining, for the same content, a set of multicast broadcast channels CDD1-CDD4 associated with respective broadcast instants 11-14 spaced out in time, and upon receipt of a request for access to the content by the reading device comprises a step of triggering a selection of a channel in said set; transmitting a content access request specifying the selected channel for receiving the content.
- the second entity MNG2 performs for its part a step of creation, for the same content, of a set of multicast broadcasting channels on which the content will be transmitted at broadcast instants spread over time.
- the second entity MNG2 detects receipt of a request for access to the content, the second entity performs the following steps: a step of receiving data representative of said moment chosen from said set, a step of transmitting the content via the channel associated with the selected time.
- the second management entity MNG2 creates several broadcast channels and allocates these broadcast channels to the multicast broadcast of the same television content with distinct broadcast times.
- a first broadcast channel CDD1 is provided for broadcasting television content.
- the first channel and the associated broadcast time is that provided by default in a content provider's service plan. This moment is generally visible via a program guide in which appears all the television content and the broadcast times.
- the program guide is usually accessible on demand and viewed through a graphical interface.
- the second entity MNG2 will create several other multicast broadcasting channels for this same television content. It is assumed for example that the second management entity MNG2 creates three other broadcast channels CDD2-CDD4.
- the CDD1-CDD4 channels are associated with respective broadcast instants II to 14 spread over time.
- the number of channels may vary depending on the content and/or its duration. For example, if the content is high audience content and therefore likely to be very requested, a short spacing such as two seconds may be relevant. It will easily be understood that for the same temporal spacing, the greater the length in time of the content, the greater the number of broadcasting channels.
- a new multicast channel is created to broadcast the content from its start. All broadcast channels and channels are created and declared in a document called a live service plan.
- a creation can consist of an instantiation of a channel.
- the service plan includes all accessible television channels and other content such as video-on-demand or equivalent content.
- the service plan further comprises, in accordance with the invention, for a television program being broadcast, data relating to the multicast channels and the time interval between the instants of broadcast on these channels.
- the first management entity MNG1 installed in the reading device STB after execution by the processor CPU1, will access the information relating to the service plan offered by the server SRV and select a channel from among the plurality of channels created CDDl-CDDn for this same content. It will be seen that the chosen channel can be a channel currently being broadcast or a channel whose broadcast is to come.
- the four channels will allow the match to be broadcast in multicast at different times 11-14, for example spaced 10 minutes apart.
- the different channels CDD1-CDD4 created are then transmitted to the reading device STB. All four channels are included in the service plan.
- the service plan indicates, for example, that the match will be transmitted at 8:00 p.m. and that three other multicast transmissions will also take place every ten minutes, namely 8:00 p.m., 8:20 p.m. and 8:30 p.m.
- the decoder STB then receives a request for access to the content CNT.
- the access request can come from an access command from a remote control able to remote control the decoder STB.
- the first entity MNG1 receives this request.
- the first management entity MNG1 will select a channel from the available channels and request reception of the content via this channel.
- the choice of channel by may be subject to variations.
- the channel selected is the channel whose broadcast time precedes the time of reception of the access request IL.
- the time of broadcast which precedes the access request IL is the latest, namely 12 (20h10).
- the selected channel is the one whose broadcast time is later than the time of receipt of the access request IL; the content is not yet broadcast on this channel.
- the chosen channel is the channel whose scheduled broadcast time follows the time of receipt of the access request.
- the channel selected is therefore the third broadcast channel CDD3 whose broadcast time is 13 (8:20 p.m.) scheduled in a few minutes.
- the server has not started to transmit the content.
- the waiting period referred to above may be subject to the transmission of a notification to inform of the waiting period before the content is broadcast. It should be noted that the shorter the spacing between broadcast instants, the shorter the wait for reception of the content.
- the created channels can have a limited or unlimited lifetime.
- the channel concerned is released to be used for the broadcasting of other content.
- a channel is created every N minutes from the start of content broadcasting; then the channel is then deleted when the content it broadcasts is finished.
- channels can be created for a chain and be used permanently but each shifted in time by 2 minutes for example. In this case it is no longer necessary to manage the deletion of the channels.
- the first management entity MNG1 is equipped with the following modules for carrying out the invention: a. A module for obtaining, for the same content, a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast instants (11-14) spaced out in time, b. A trigger module capable of triggering, following a request for access to the content, a selection of a channel in said set; the channel being judiciously chosen as a function of its time of broadcast and of said time of reception of the access request; and transmitting a content access request specifying the selected channel for receiving the content.
- a. A module for obtaining, for the same content, a set of multicast broadcast channels (CDD1-CDD4) associated with respective broadcast instants (11-14) spaced out in time b.
- a trigger module capable of triggering, following a request for access to the content, a selection of a channel in said set; the channel being judiciously chosen as a function of its time of broadcast and of said time of reception of the access request; and transmit
- the second entity is itself equipped with the following modules for carrying out the process: a.
- a creation module capable of creating, for the same content, a set of multicast broadcast channels CDD1-CDD4 associated with respective broadcast instants 11-14 spaced out in time, b.
- a transmission module capable of transmitting the content via the channel.
- module or the term entity can correspond to a software component as well as to a hardware component or a set of hardware and software components, a software component itself corresponding to one or more programs or sub-programs computer or more generally to any element of a program able to implement a function or a set of functions as described for the modules concerned.
- a hardware component corresponds to any element of a hardware (or hardware) assembly capable of implementing a function or a set of functions for the module concerned (integrated circuit, smart card, memory card, etc. .).
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2111460A FR3128842A1 (fr) | 2021-10-28 | 2021-10-28 | procédé de gestion de l’accès à une contenu a lecture d’un contenu multimédia. |
| PCT/EP2022/078099 WO2023083538A1 (fr) | 2021-10-28 | 2022-10-10 | Procédé de gestion de l'accès à une contenu a lecture d'un contenu multimedia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4424021A1 true EP4424021A1 (fr) | 2024-09-04 |
Family
ID=79018403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22800657.3A Pending EP4424021A1 (fr) | 2021-10-28 | 2022-10-10 | Procédé de gestion de l'accès à une contenu a lecture d'un contenu multimedia |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250016424A1 (fr) |
| EP (1) | EP4424021A1 (fr) |
| FR (1) | FR3128842A1 (fr) |
| WO (1) | WO2023083538A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2432128A1 (fr) * | 2000-12-13 | 2002-06-20 | The Chinese University Of Hong Kong | Procede et systeme de distribution de medias via un reseau |
| CN101060617B (zh) * | 2007-05-22 | 2010-07-28 | 华为技术有限公司 | 一种视频点播控制方法、客户端设备和切换控制装置 |
| KR101931653B1 (ko) * | 2011-07-06 | 2018-12-21 | 에스케이플래닛 주식회사 | 멀티캐스트 기반 컨텐츠 전송 시스템 및 방법 |
| US9936241B2 (en) * | 2014-04-07 | 2018-04-03 | Cellco Partnership | Method and apparatus for providing dynamic channel and content provisioning |
| CN106302566B (zh) * | 2015-05-12 | 2019-07-23 | 华为技术有限公司 | 直播媒体数据的方法、设备和系统 |
-
2021
- 2021-10-28 FR FR2111460A patent/FR3128842A1/fr not_active Ceased
-
2022
- 2022-10-10 WO PCT/EP2022/078099 patent/WO2023083538A1/fr not_active Ceased
- 2022-10-10 EP EP22800657.3A patent/EP4424021A1/fr active Pending
- 2022-10-10 US US18/704,734 patent/US20250016424A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023083538A1 (fr) | 2023-05-19 |
| US20250016424A1 (en) | 2025-01-09 |
| FR3128842A1 (fr) | 2023-05-05 |
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