EP4055831A1 - Procédé de gestion de zapping de contenus multimédias numériques obtenu par téléchargement progressif adaptatif (has), dispositif de gestion, lecteur de flux multimédia et programme d'ordinateur correspondants - Google Patents
Procédé de gestion de zapping de contenus multimédias numériques obtenu par téléchargement progressif adaptatif (has), dispositif de gestion, lecteur de flux multimédia et programme d'ordinateur correspondantsInfo
- Publication number
- EP4055831A1 EP4055831A1 EP20819810.1A EP20819810A EP4055831A1 EP 4055831 A1 EP4055831 A1 EP 4055831A1 EP 20819810 A EP20819810 A EP 20819810A EP 4055831 A1 EP4055831 A1 EP 4055831A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zapping
- content
- digital content
- time
- digital
- 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
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 27
- 238000004590 computer program Methods 0.000 title claims description 10
- 238000007726 management method Methods 0.000 claims abstract description 15
- 230000000750 progressive effect Effects 0.000 claims description 22
- 238000009877 rendering Methods 0.000 claims description 9
- 239000012634 fragment Substances 0.000 description 36
- 230000006870 function Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 10
- 230000015654 memory Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002123 temporal effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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]
- H04N21/20—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
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
-
- 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
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
-
- 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
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64761—Control signals issued by the network directed to the server or the client directed to the server
- H04N21/64769—Control signals issued by the network directed to the server or the client directed to the server for rate control
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
-
- 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
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/4508—Management of client data or end-user data
- H04N21/4532—Management of client data or end-user data involving end-user characteristics, e.g. viewer profile, preferences
Definitions
- TITLE Zapping management method of digital multimedia content obtained by adaptive progressive download (HAS), management device, multimedia stream player and corresponding computer program.
- HAS adaptive progressive download
- the field of the invention is that of digital multimedia content, namely digital audio and / or video content, and more particularly digital multimedia content obtained according to a technique known as adaptive progressive download (H AS) within a network.
- local communication network such as a home network.
- the invention relates to the optimization of the zapping from one digital multimedia content to another, that is to say to the abandonment of the consumption of a first digital multimedia content to switch to a second multimedia content. digital, within a multimedia stream reader terminal.
- local such as a home network.
- the terminal generally sends a request to a server, indicating the chosen content, and in return it receives a stream of digital data relating to this content.
- a request passes through the network access gateway, for example the residential gateway.
- the terminal is suitable for receiving this digital content in the form of multimedia data and for rendering it back.
- This restitution consists in providing the digital content at the level of the terminal in a form accessible to the user.
- data received corresponding to a video is generally decoded, then restored at the level of the terminal in the form of a display of the corresponding video with its associated soundtrack.
- the digital content will be likened to a video and the reproduction by the terminal, or consumption by the user of the terminal, to a display or reading on the screen of the terminal.
- the distribution of digital content on the Internet is often based on client-server protocols of the HTTP family (standing for “Hyper Text Transfer Protocol”).
- HTTP family standing for “Hyper Text Transfer Protocol”.
- the progressive downloading of digital content also called streaming, makes it possible to transport and consume the data in real time, that is to say that the digital data is transmitted over the network and returned by the terminal as it goes. and to measure of their arrival.
- the terminal receives and stores part of the digital data in a buffer memory before returning them. This mode of distribution is particularly useful when the bit rate available to the user is not guaranteed for the real-time transfer of the video.
- Adaptive progressive downloading in English HTTP Adaptive Streaming, abbreviated HAS, furthermore makes it possible to broadcast and receive data in different qualities corresponding for example to different bit rates. These different qualities are described in a parameter file available for download on a data server, for example a content server.
- this description file makes it possible to select the right format for the content to be consumed according to the available bandwidth or the storage and decoding capacities of the client terminal. This type of technique makes it possible in particular to take account of the variations in bandwidth on the link between the client terminal and the content server.
- the MPEG-DASH standard (for English “Dynamic Adaptive Streaming over HTTP", in French “dynamic adaptive streaming over HTTP") is an audiovisual broadcast format standard on the Internet. It is based on the preparation of the content in different presentations of variable quality and speed, cut into short segments (of the order of a few seconds), also called “chunks”. Each of these segments is made available individually by means of an exchange protocol. The primarily targeted protocol is HTTP, but other protocols (eg FTP) can also be used. The organization of the segments and the associated parameters are published in a manifest in XML format.
- the principle underlying this standard is that the MPEG-DASH client makes an estimate of the bandwidth available for the reception of segments, and, depending on the filling of its reception buffer, chooses, for the next segment to be loaded, a representation whose bit rate: ensures the best possible quality, and allows a reception delay compatible with the uninterrupted rendering of the content.
- the client terminal must therefore find a compromise between the overall quality of the content, and its uninterrupted reproduction, by carefully selecting the next segment to download, among the various encoding rates offered. To do this, there are different algorithms for selecting the quality of the content as a function of the available bandwidth, which may have more or less aggressive, or more or less secure, strategies.
- VOD video on demand
- Replay delayed broadcasting of television programs
- Network PVR type offers for “Network Personal Video Recorder”, ie a digital content recording service, carried out by the content provider itself rather than at the end user's home).
- real-time media streaming devices also access digital content in progressive adaptive download mode for real-time (or LIVE) television content.
- LIVE real-time
- Such devices are conventionally connected to the HDMI port of a television set and communicate, by Wi-Fi connection, with another device of the home communication network connected to an extended communication network such as the Internet (residential gateway, computer, telephone smart device (smartphone, tablet, etc.), in order to reproduce, on the television, the multimedia content received by a compatible software application.
- extended communication network such as the Internet (residential gateway, computer, telephone smart device (smartphone, tablet, etc.)
- These devices will be referred to below under the generic designation of HDMI Key.
- client terminal will be assimilated to the association of a multimedia stream reader terminal (for example HDMI key) and of a playback terminal (for example a television set) making it possible to view the content.
- a multimedia stream reader terminal for example HDMI key
- a playback terminal for example a television set
- the restitution terminal can be the multimedia stream reader terminal itself (for example a smart mobile phone, a tablet), or be separate from it (for example a television connected to an HDMI key, or to a set-top box (STB )).
- zapping When a user uses the services of such digital content servers, he may wish to switch rapidly from one digital content to another: this is then referred to as “zapping”.
- zapping in French “channel jump” is meant the fact that the user abandons the consumption of digital multimedia content (for example a first program, or a first television channel) to switch to a other digital media content (for example another program or another channel) in a fast way.
- digital multimedia content for example a first program, or a first television channel
- a other digital media content for example another program or another channel
- the term “zapping” is extended to any change of digital multimedia content obtained in HAS to another.
- this may be from digital multimedia content broadcast LIVE (in French in “real time”) to another, such as for example from one television channel to another.
- this can be from one digital multimedia content of VOD type to another, such as for example from one episode of a series to another episode of this same series. It can also act of switching from real-time content to deferred content, for example from a LIVE television program to a deferred program of the replay type, or to video on demand.
- the zapping time from one digital multimedia content to another, on multimedia stream reader terminals, such as an HDMI key, for example varies a lot depending on the network environment. ie the type of access to the user's communication network (for example ADSL (standing for "Asymmetric Digital Subscriber Line”); VDSL (standing for "Very high bit rate digital subscriber line” ); or fiber), the bandwidth at the time of zapping, the availability of the content server, but also depending on the digital multimedia content to which the user wishes to access.
- ADSL standing for "Asymmetric Digital Subscriber Line”
- VDSL standing for "Very high bit rate digital subscriber line”
- fiber the bandwidth at the time of zapping
- the fragments of the second content are downloaded at the same encoding rate as those of the first content were.
- the time required to switch from rendering from one digital content to another, or zapping time may be acceptable, but for others it can be very long (more than 5 seconds in some cases). However, it is important that this zapping time remains short so as not to inconvenience the user and to guarantee a good quality of experience.
- This technique although interesting, necessarily relies on the pre-routing of one or more content chains, and can therefore prove to be complex to deploy, and unnecessarily consuming resources.
- the encoding rate of the first segment of a new content returned to the user during zapping corresponds to the encoding rate of this new pre-routed content; in the case where several contents are pre-routed, this encoding rate therefore only represents a fraction of the remaining rate, i.e. a fraction of the part of the bandwidth unused to consume the content being viewed; in the limiting case where only one content is pre-routed, this encoding rate is therefore at best equal to this remaining rate.
- the quality of the restitution therefore remains relatively low, and does not make it possible to optimize the user experience.
- the invention responds to this need by proposing a method for managing zapping from a first to a second digital content.
- first and second digital contents are obtained by adaptive progressive downloading (HAS) by a multimedia stream reader terminal, and are respectively associated with a description file, comprising a list of time segments of the content each associated with several encoding rates of the content.
- HAS adaptive progressive downloading
- This zapping management method comprises: receiving a zapping request from the first digital content to the second digital content, obtaining the description file of said second digital content.
- such a method also comprises: a selection of an encoding rate of a first time segment of the second digital content to be downloaded, as a function, on the one hand, of a resource constraint obtained by the terminal multimedia stream player, and on the other hand of a target zapping time, a download of the first time segment of the second digital content at the selected rate.
- the invention is based on a completely new and inventive approach to the management of zapping from one content to another, in a context of adaptive progressive downloading. More particularly, the invention proposes to take into account, in addition to the resource constraints of the multimedia stream reader terminal, a target zapping time, making it possible to optimize the quality of the user's experience, in order to choose the quality. , or encoding rate, of the first time segment of the new content (or second content) to be downloaded during zapping.
- a content change command also called zapping command
- the digital multimedia stream reader terminal receives it, and then selects the bit rate d. encoding of the first time segment of the new digital content to be downloaded, then to be restored, according to the available bandwidth, so that the target zapping time is respected.
- the multimedia stream reader terminal knows the current bandwidth constraints, according to the technique. H AS classic. This target zapping time thus defines a reasonable zapping time ceiling not to be exceeded in order to provide the user with a pleasant experience.
- the user is not bothered by an excessively long zapping time between the moment he emits the zapping command and the moment when the new content is returned to him, and can view this new content at the best possible quality by depending on its bandwidth.
- the method according to the invention makes it possible to optimize the encoding quality of the new content to be restored, to promote the best possible quality of experience, without impact on the zapping time, since this is limited by a target zapping time not to be exceeded.
- the method according to the invention makes it possible to make a compromise between a target zapping time which is not too long and a quality of reproduction of new digital content, and offers the user a better quality of experience. when zapping from one digital content to another.
- the method according to the invention advantageously makes it possible to dispense with the pre-routing of content chains, which can prove to be complex. and needlessly consuming resources.
- the second content is not pre-routed in parallel with the viewing of the first content by the user, and it is only after receipt of a zapping request from the user that, d '' on the one hand, the best encoding rate of the second content to which the user can claim, taking into account the available bandwidth resources and a maximum zapping time not to be exceeded, is determined, and that, on the other hand , the downloading of the first segment of this second content is initiated, at the optimum encoding rate thus determined.
- the selected encoding rate corresponds to an encoding rate for which a zapping time from the first to the second content is less than or equal to the target zapping time.
- the invention proposes not to seek to minimize the zapping time for the user, but on the contrary to be as close as possible to a predefined target zapping time which is identical regardless of the operating conditions. bandwidth and resource of the communication network of the user and of the content server.
- the invention seeks to optimize the encoding quality of the first time segment to download new content to be restored while respecting this target zapping time regardless of the resource constraints. So what whatever the circumstances, the zapping time experienced by the user is always the same: this reproducibility is favorable to the quality of the user experience.
- zapping time is meant the time which elapses between the transmission by the user of a zapping command, and the restitution on the restitution terminal of the new digital content. This zapping time must not exceed a target zapping time, or maximum zapping time.
- this target zapping time is 2 seconds, a value which guarantees a good user experience in terms of the waiting time between the issuance of the digital content change command and the playback on the playback terminal of the new one. digital content.
- the selection of an encoding rate takes into account a latency time necessary to obtain the description file of the second digital content.
- the zapping time between the moment when the user requests the change from the first digital content being restored to the second content takes into account an incompressible latency time.
- This latency time corresponds to the time which elapses between the issuance of the command to change content by the user and the obtaining of the description file, or manifest file, of the second content to be downloaded and then to be restored.
- the multimedia stream reader terminal receives a request to change a first digital content for a second digital content.
- This terminal therefore sends a request to retrieve the manifest file of the second content to the digital content server and then retrieves this manifest file. The corresponding latency time is then measured.
- this latency time corresponds to the incompressible time between the moment when the user requests a change of digital content, via a zapping command, and the retrieval by the terminal of the first bytes of the manifest file of the second digital content.
- This latency therefore depends on the one hand on the bandwidth at the time of zapping, but also on the time taken by the content server to send the manifest file of the second content to the multimedia stream reader terminal.
- the encoding quality of the first time segment to be downloaded is then selected such that this quality corresponds to a so-called target quality, making it possible to best respect the zapping time target based on bandwidth and latency conditions.
- the taking into account of this latency time makes it possible to select the best quality of encoding of the first time segment of the second digital content to be downloaded making it possible to comply with the target zapping time.
- the taking into account of this latency time is an advantageous option in the present case, but which can be dispensed with by the solutions of the prior art, such as described for example in the patent document EP 2819424, according to which the content channels on which the user is likely to zap are the subject of a pre-routing, in parallel with the viewing of the first content.
- the zapping request belongs to the group comprising: a movement in a digital content program guide; entering an identifier of the second digital content on a digital keyboard, the identifier comprising at least one alphanumeric character.
- the user in order to zap, issues a zapping command via, for example, a movement in a digital content program.
- This movement in the digital content program guide can be carried out, for example, by pressing the P + or P- keys on a remote control or by swiping the touch screen of a tablet or smartphone.
- the zapping command is done more directly via the selection of a digital content by entering the identifier of this second content on a digital keyboard.
- This identifier can be a sequence of alphanumeric characters such as for example the number of the channel or the number of the episode of a series. This entry is made for example via the remote control of a television or directly on the touch screen of a smartphone or tablet.
- the method comprises a step of parameterizing the target zapping time by a user via an interface of a rendering terminal.
- the user can select, for example via an interface of a rendering terminal, a target zapping time corresponding to a maximum zapping time predefined by the manufacturer for example, or else modify it according to his preferences.
- the user can therefore prefer a shorter target zapping time and the downloading of time segments of the new content of lower quality or else prefer a longer target zapping time, to favor the selection of time segments at the best quality allowed by bandwidth constraints.
- the target zapping time depends on a nature of the second digital content.
- the invention also relates to a computer program product comprising program code instructions for implementing a method for managing zapping from a first to a second digital content, as described above, when it is. executed by a processor.
- the invention also relates to a recording medium readable by a computer on which is recorded a computer program comprising program code instructions for the execution of the steps of the method for managing zapping from a first to a second content. digital according to the invention as described above.
- Such a 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 can be a transmissible medium such as an electrical or optical signal, which can be conveyed via an electrical or optical cable, by radio or by other means, so that the program computer it contains can be executed remotely.
- the program according to the invention can in particular be downloaded over a network, for example the Internet network.
- the recording medium can 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.
- the invention also relates to a device for managing zapping from a first to a second digital content.
- first and second digital contents are obtained by adaptive progressive downloading (MAS) by a multimedia stream reader terminal and are respectively associated with a description file, comprising a list of time segments of the content each associated with several encoding rates of the content. .
- MAS adaptive progressive downloading
- This device comprises: a module for receiving a zapping request from the first digital content to the second digital content, a module for obtaining the description file of the second digital content.
- This device further comprises: a module for selecting an encoding rate for a first time segment of the second digital content to be downloaded, as a function, on the one hand, of a resource constraint obtained by the multimedia stream reader terminal, and on the other hand from a target zapping time, a module for downloading the first time segment of the second digital content at the selected rate.
- the invention also relates to a multimedia stream reader terminal, comprising a device for managing zapping from a first to a second digital content as described above.
- the management device, the multimedia stream reader terminal and the corresponding computer program mentioned above have at least the same advantages as those conferred by the method for managing zapping from a first to a second digital content according to the various embodiments. of the present invention.
- FIG 1 presents a progressive download architecture on a home network based on the use of adaptive streaming according to an embodiment of the invention
- FIG 2 schematically illustrates the hardware structure of a multimedia stream reader terminal incorporating a zapping management device according to one embodiment of the invention
- FIG 3 illustrates an example in the form of a timing diagram of the implementation of a method for managing zapping from a first to a second digital content by a multimedia stream reader terminal according to Figure 2, associated with a return terminal.
- the general principle of the invention is based on the possibility, during a zapping from one digital content to another, obtained by HAS download, to select the encoding rate of the first time segment of the new content to be downloaded (also referred to as subsequently as the second digital content to be downloaded) taking into account, on the one hand, the resource constraints of the multimedia stream reader terminal, and on the other hand a target zapping time.
- Terminal 3 for example an intelligent telephone of the “smartphone” type
- terminal 4 for example a tablet
- terminal 8 for example an HDMI key connected to a television 5
- LAN local network
- 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 company network, and so on.
- a “HAS” digital content server 2 is located in the wide area network (WAN, 1) but it could equally well be located in the local network (LAN, 10), for example in the network. domestic gateway 6 or any other equipment capable of hosting such a content server.
- the content server 2 receives, for example, digital television content channels originating from a broadcast television network, not shown, and makes them available to the client terminals.
- the client terminals 3, 4 and the HDMI key 8 in association with the television 5, can enter into communication with the content server 2 to receive one or more content (films, documentaries, advertising sequences, etc.).
- URI Universal Resource Identifier
- All of these parameters are generally grouped together in a parameter file, called a description or manifest file.
- this parameter file can be a computer file or a set of descriptive information about the content, accessible at a certain address.
- Terminals 3, 4 and 8 have their own characteristics in terms of decoding capability, display, etc. In a progressive adaptive download context, they can adapt their requests to receive and decode the content requested by the user at the quality that best suits them.
- the service gateway 6 is in this example a domestic gateway which ensures the routing of data between the wide area network 1 and the local network 10 and manages the digital content, in particular ensuring their reception from the wide area network 1.
- the terminals 3, 4 and 8 receive the data coming from the extended network 1, via the domestic gateway 6, and ensure their decoding, and possibly their reproduction on their screen, or in the example of the HDMI key 8 on the television 5 associate. In one variant, the terminals 3 and 4 transmit these data to the HDMI key 8 for reproduction on the screen of the television 5. In another variant, the decoder may be located elsewhere in the extended 1 or local 10 network, in particular at the level an STB type element (standing for Set-Top-Box) (not shown) associated with a television 5.
- the terminals 3, 4 or 8 firstly interrogate the service gateway 6 to obtain an address of the description document 7 of a first desired digital content C1.
- the service gateway 6 responds by providing the terminal with the address of the description file 7.
- this file is a manifest type file according to the MPEG-DASH standard (denoted “C.mpd”) and we will refer indifferently, depending on the context, to the expression “description file” or “manifest”.
- this file can be retrieved directly from a local Internet server or external to the local network, or be already on the service gateway or on the terminal at the time of the request.
- MPD MPEG-DASH
- NI 512 kb / s
- N2 1024 kb / s
- N3 2048 kb / s) of the fragmented contents is presented in Annex 1.
- This simplified manifest file describes digital contents in XML syntax (from the English “eXtended Markup Language”), comprising a list of contents in the form of fragments conventionally described between an opening tag ( ⁇ SegmentList>) and a closing tag ( ⁇ /SegmentList>). Cutting into fragments makes it possible in particular to adapt finely to fluctuations in the bandwidth.
- Each fragment corresponds to a certain duration ("duration" field) with several quality levels and allows to generate their addresses (URL - Uniform Resource Locator). This generation is done in this example using the elements “BaseURL” (“HTTP://server.com”) which indicates the address of the content server and “SegmentURL” which lists the complementary parts of the addresses of the different fragments. :
- the service gateway 6 proceeds to obtain the fragments by downloading to these addresses. It should be noted that this download takes place here, traditionally, through an HTTP URL, but could also take place through a universal address (URI) describing another protocol (dvb: // my content segment for example).
- URI universal address
- the HDMI 8 key is connected to the television 5 by connection to the latter's HDMI port, and is used to render, on the screen of the television 5, CX content (X being an integer representing the Xth content viewed), described in a manifest file 7.
- CX content can be a television program broadcast live or delayed (such as for example a film, a series, a television program, an advertising sequence, etc.). ), or video on demand, or other digital multimedia content.
- a user wishes to view multimedia digital content, such as a film, on his television 5 connected to an HDMI key 8.
- the HDMI key 8 is connected via WIFI directly to the residential gateway 6.
- the HDMI 8 key could also be connected by WIFI ⁇ to another nomadic device of the home network, for example to the tablet 4 or to the smart phone 3, through which it could access the extended communication network 1.
- the HDMI 8 key can also be controlled by the user by means of the smart phone 3, on which is installed a software application for controlling the HDMI key 8.
- the content fragments obtained by the residential gateway 6 are for example transmitted over WiFi to the HDMI key 8, which controls their display on the television screen 5, for restitution to the user.
- FIG. 2 represents an architecture of a multimedia stream reader terminal 9, or stream reader 9, according to one embodiment of the invention.
- This stream reader terminal 9 can for example be the HDMI key 8, or the smart phone 3 of FIG. 1.
- this stream reader 9 is integrated at the level of an STB type element associated with a television set (not represented).
- the example of the HDMI 8 key will be described more specifically below.
- the stream reader terminal 9 conventionally comprises memories MEM associated with a processor CPU.
- the memories can be of the ROM type (standing for “Read Only Memory”) or RAM (standing for “Random Access Memory”) or else Flash.
- the multimedia stream player 9 comprises an adaptive progressive download module MAS, or MAS client module, able to request a progressive download of one of the contents with one of the qualities proposed in a description file 7.
- This description file 7 can be recorded for example in the memories MEM of the multimedia stream player 9 or be located outside. Obtaining this manifest file 7, from the content server, is also controlled by the download module MAS.
- the multimedia stream player 9 further comprises a ZAP zapping module allowing a user to zap, that is to say to abandon the consumption of a digital content in order to switch to another quickly.
- a ZAP zapping module is able to receive a zapping request from a first to a second digital content when the user issues a zapping command, for example by means of a remote control associated with the television 5, or by pressing a smartphone interface 3 or tablet 4.
- the multimedia stream player 9 also comprises a module for selecting an encoding rate of a first time segment of a new content to be downloaded SEL, or a selection module SEL.
- the selection module SEL controls the client module MAS, in order to force the latter to request the download of the first time segment of the new content based on a on the one hand a resource constraint obtained by the multimedia stream reader terminal 9, and on the other hand a target zapping time. It will be noted that it is on receipt of a zapping request that this downloading is requested, the new content not having been pre-routed beforehand, for example in parallel with the first content being viewed.
- the selection modules SEL and the client module MAS are activated on receipt of a command from the ZAP zapping module.
- the multimedia stream player 9 can also contain other modules (not shown) such as a hard disk for storing video fragments, a module for controlling access to content, a module for processing of commands received from a remote control, or from a tablet, from a smartphone on which the application for controlling the stream reader 9 is installed, thanks to which the user can control its operation, etc.
- modules such as a hard disk for storing video fragments, a module for controlling access to content, a module for processing of commands received from a remote control, or from a tablet, from a smartphone on which the application for controlling the stream reader 9 is installed, thanks to which the user can control its operation, etc.
- the stream reader terminal 9 is the HDMI key 8
- this one generally does not contain an I / O interface module, and it is the I / O interface module of the smartphone 3 of the user or his tablet 4, or the television 5, which is used by the latter to choose for example its content.
- module can correspond just as well to a software component as to a hardware component or a set of hardware and software components, a software component itself corresponding to one or more computer programs or subroutines or more generally to any element of a program capable of implementing a function or a set of functions as described for the modules concerned.
- a hardware component corresponds to any element of a hardware assembly capable of implementing a function or a set of functions for the module concerned (integrated circuit, smart card, memory card, etc. .).
- such a stream reader 9 comprises a random access memory MEM (for example a RAM memory), a processing unit equipped for example with a processor CPU, and controlled by a computer program, and comprising code instructions representative of the ZAP zapping, SEL selection modules, and of the MAS adaptive progressive download management module, stored in a read only memory (for example a ROM memory or a hard disk).
- a read only memory for example a ROM memory or a hard disk.
- the code instructions of the computer program are for example loaded into the random access memory before being executed by the processor CPU of the processing unit.
- the random access memory contains in particular the manifest description file 7.
- the processor of the processing unit controls the selection of an encoding rate of a first time segment of the new content to be downloaded, as a function, on the one hand, of a resource constraint obtained by the multimedia stream reader terminal 9, and on the other hand the target zapping time and the transmission of corresponding commands to the client module MAS.
- FIG. 2 illustrates only one particular way, among several possibilities, of producing the stream reader terminal 9, so that it performs the steps of the method detailed below, in relation to FIG. 3 (in any one of the different embodiments, or in a combination of these embodiments). Indeed, these steps can be performed either on a reprogrammable computing machine (a PC computer, a DSP processor or a microcontroller) executing a program comprising a sequence of instructions, or on a dedicated computing machine (for example a set of logic gates such as an FPGA or ASIC, or any other hardware module).
- a reprogrammable computing machine a PC computer, a DSP processor or a microcontroller
- a program comprising a sequence of instructions
- a dedicated computing machine for example a set of logic gates such as an FPGA or ASIC, or any other hardware module.
- FIG. 3 in the form of a timing diagram, an example of the implementation of a method for zapping from a first to a second digital content obtained by downloading MAS is now presented, according to an embodiment of the 'invention.
- the stream reader terminal 9 is the HDMI key 8, which controls the reproduction of the digital multimedia content on the associated television 5.
- the HDMI 8 key therefore includes a SEL selection module, a HAS client module and a ZAP zapping module.
- the HDMI 8 key can be controlled via a remote control for the television 5 or via a software application for controlling a smartphone 3 or tablet 4.
- the user prior to the restitution of a first digital content C1, the user, via the association of the television 5 and the HDMI key 8, sends a request, which passes through the domestic gateway 6 (not shown), indicating the chosen content to the “HAS” content server 2.
- the “HAS” content server 2 then sends in response to this request a data stream representative of the content chosen via the domestic gateway 6 (not shown).
- the content server “HAS” 2 exposes a digital content C1 in the form of fragments, or "chunks” Cli @ Dj encoded at different encoding rates Dj, where the index I designates a temporal identifier, or position, of the "chunk »Cli @ Dj.
- the HAS client module is responsible for coming to retrieve the “chunks” from the “HAS” content server 2 by choosing the video quality Dj according to the available network resource.
- the HAS client module evaluates whether, depending on the size of the fragment and the time taken to retrieve it, the network conditions allow the next fragment to be downloaded at a higher encoding rate.
- the HAS client module recovers the manifest file 71 in order to discover the available fragments of the digital content C1, and the various associated video qualities Dj.
- the HAS client module downloads, for example, successive Cli @ Dl fragments (i.e. the first temporal fragment at an encoding rate of 400 kb / s), then Cl2 @ D5 (i.e. the second time fragment at an encoding rate of 3000 kb / s), up to normal playback in high quality of a Cli @ D5 video (i.e. the i-th time fragment at an encoding rate of 3000 kb / s) s).
- the algorithm implemented by the HAS client module to determine which fragment at which encoding rate should be downloaded in normal operating mode can be one of the already existing algorithms of the prior art. This algorithm will therefore not be described in more detail here.
- the various fragments downloaded by the HAS client module are then transmitted in a step E2 to the television 5 via the HDMI key 8, for example for their return to the user.
- the user can decide at any time to stop his viewing in order to switch to new digital content, or second digital content C2. This is the case, for example, when the user is watching a film and a commercial break interrupts his film. He can then decide to skip the ad and watch other digital content, for example on another television channel, while waiting to resume his film.
- a step E3 the user sends a zapping command from a first digital content C1 to a second digital content C2.
- This command can be sent either by moving through a digital content program guide, or by entering an identifier of the second digital content C2 on a digital keyboard, this identifier comprising at least one alphanumeric character.
- Movement through the digital content program guide can be carried out for example by pressing the buttons provided for this purpose on a remote control of the television 5 (such as the P + or P- buttons, for example) or by swiping the touch screen of tablet 4 or smartphone 3.
- buttons provided for this purpose on a remote control of the television 5 (such as the P + or P- buttons, for example) or by swiping the touch screen of tablet 4 or smartphone 3.
- the zapping command is performed more directly via the selection of a digital content by entering the identifier of the second content C2 on a digital keyboard.
- This identifier can be a series of alphanumeric characters such as for example the number of the channel or the number of the episode of a series. This entry is made, for example, via the remote control of the television 5 or directly on the touch screen of the smartphone 3 or of the tablet 4.
- the ZAP zapping module receives a zapping request REQ ⁇ ZAP from the first digital content C1 to a second digital content C2.
- the ZAP zapping module via the HAS client module, sends a request REQ, _Manifest_C2, containing a request to retrieve the manifest file 72 of the second digital content C2 to the “HAS” content server 2.
- the “HAS” content server 2 sends a data stream representative of the second digital content C2 chosen to the HAS client module, which then retrieves the manifest file 72.
- the “HAS” content server "2 exposes the second digital content C2 in the form of fragments, C2i @ Dj encoded at different encoding rates Dj, where the index i designates a temporal identifier, or position, of the" chunk "C2i @ Dj.
- a latency time TLat corresponding to the time which has elapsed between the sending of the zapping command by the user and the obtaining of the first bytes of the manifest file 72 by the client module HAS, of the second C2 content to be downloaded is measured.
- the instant of transmission of the zapping command by the user will be assimilated to the instant of receipt of the zapping request REQ ⁇ ZAP by the zapping module ZAP.
- the latency time TLat corresponds to the time which elapses between the reception of the REQ ⁇ ZAP request by the ZAP zapping module and the obtaining of the first bytes of the manifest file 72 by the HAS client module.
- This TLat latency time is incompressible and depends on the one hand on the bandwidth at the time of zapping, but also on the time taken by the “HAS” content server 2 to send the manifest file 72 of the second content C2 to the HAS client module. .
- the HAS client module identifies the available fragments of the digital content C2, and the various associated video qualities Dj.
- the selection module SEL selects an encoding rate for the first time segment of the second digital content C2 (C2i @ Dj) to be downloaded, as a function of: the bandwidth available at the time of zapping, a time zapping target defining a reasonable zapping time limit not to be exceeded in order to provide the user with a pleasant experience.
- This predefined target zapping time is identical regardless of the bandwidth and resource conditions of the communication network of the user and of the content server 2.
- this target zapping time is 2 seconds, a value which guarantees a good user experience in terms of the waiting time between the transmission of the zapping command and the reproduction on the television 5 of the new digital content.
- the encoding rate of the first time segment C2i @ Dj of the second digital content C2 is selected so that the zapping time TZap, that is to say the time which elapses between the reception of the RAQ _ ZAP request by the ZAP zapping module, and the start of the reproduction on the television 5 of the second digital content C2, does not exceed the target zapping time, or maximum zapping time.
- the zapping time TZap also takes into account the latency time TLat measured at the end of step E5.
- the target zapping time is set at 2 seconds.
- the Tzap zapping time must be less than or equal to the target zapping time, i.e. 2 seconds, to guarantee a good user experience.
- the latency time TLat measured at the end of step E5 is 300 ms.
- User bandwidth is continuously measured by the HAS client module. Indeed, the HAS client module knows the current bandwidth constraints, according to the conventional HAS technique. In this example, the bandwidth is measured at 4Mbs / s.
- manifest file 72 there are 5 different qualities (DI to D5) and the time segments are 4 seconds long.
- the selection module SEL will then drive the HAS client module to force it to download the first time segment C2i @ Dj of the second digital content C2 at the quality Dj making it possible not to exceed the predefined target zapping time.
- the encoding quality Dj with selection for the segment C2i corresponds to:
- Coding quality of the first segment (Q) [ ⁇ Time of za pprög target-Latency timefTlat)) X bandwidth) '/ duration ' of the segmentscontent C2; :
- the selection module SEL will therefore select the quality D3 of 1200 kbs / s so that the zapping time TZap is less than or equal to the target zapping time of 2 seconds.
- the target zapping time results from a choice expressed by a user via an I / O interface of a playback terminal, such as for example the television 5.
- a playback terminal such as for example the television 5.
- the The user can, via the I / O interface of the television 5, select either the target zapping time predefined by the manufacturer (for example 2 seconds), or modify it according to his preferences.
- the user can select a shorter target zapping time (for example 1 second) and therefore favor the downloading of the first time segment of the second digital content C2 at a lower quality (for example 400 kbs / s C2 1 @Dl).
- the user can choose a longer target zapping time (for example 4 seconds), in order to favor the selection of the first time segment of the second digital content C2 at a better quality (for example the segment at 3000 kbs / s C2i @ D5).
- the choice expressed by the user depends on a nature of digital content.
- the user can choose, depending on the nature of the digital content (for example film, documentary, sport, etc.) the target zapping time.
- the target zapping time when the user has a particular interest in content of a certain nature, such as for example a movie, they can choose a longer target zapping time in order to ensure that the best quality of the content. is downloaded.
- the quality of the content is of little interest to the user (for example television news)
- he may then prefer a shorter zapping time and therefore download the new content at a low encoding rate.
- the target zapping time is set by the manufacturer of the multimedia stream player terminal as a function of the nature of the digital content (for example 2 seconds for digital content in real time, and 4 seconds for content. time-lapse digital, for example video on demand).
- the HAS client module driven by the SEL module, is responsible for retrieving the time segments from the “HAS” content server 2 by choosing the video quality D3 imposed as a function of the available network resource and of the time. target zapping.
- the HAS client module resituates the first fragment C2i @ D3 at the level of the television 5.
- the method according to the invention thus makes it possible to optimize the encoding quality of the second digital content C2 to be restored, to promote the best possible quality of experience, without impact on the zapping time, since this is limited by a target zapping time not to be exceeded.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Information Transfer Between Computers (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 |
---|---|---|---|
FR1912374A FR3102904A1 (fr) | 2019-11-05 | 2019-11-05 | Procédé de gestion de zapping de contenus multimédias numériques obtenu par téléchargement progressif adaptatif (HAS), dispositif de gestion, lecteur de flux multimédia et programme d’ordinateur correspondants. |
PCT/FR2020/051992 WO2021089942A1 (fr) | 2019-11-05 | 2020-11-04 | Procédé de gestion de zapping de contenus multimédias numériques obtenu par téléchargement progressif adaptatif (has), dispositif de gestion, lecteur de flux multimédia et programme d'ordinateur correspondants |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4055831A1 true EP4055831A1 (fr) | 2022-09-14 |
Family
ID=69700030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20819810.1A Pending EP4055831A1 (fr) | 2019-11-05 | 2020-11-04 | Procédé de gestion de zapping de contenus multimédias numériques obtenu par téléchargement progressif adaptatif (has), dispositif de gestion, lecteur de flux multimédia et programme d'ordinateur correspondants |
Country Status (4)
Country | Link |
---|---|
US (1) | US11805290B2 (fr) |
EP (1) | EP4055831A1 (fr) |
FR (1) | FR3102904A1 (fr) |
WO (1) | WO2021089942A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114979757B (zh) * | 2022-06-02 | 2024-01-30 | 北京字跳网络技术有限公司 | 视频发布方法、装置、设备及存储介质 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8527647B2 (en) * | 2009-10-06 | 2013-09-03 | Unwired Planet, Inc. | Managing network traffic using intermediate flow control |
GB201100397D0 (en) * | 2011-01-11 | 2011-02-23 | Univ Gent | Fast channel switching |
US9804668B2 (en) * | 2012-07-18 | 2017-10-31 | Verimatrix, Inc. | Systems and methods for rapid content switching to provide a linear TV experience using streaming content distribution |
FR3007615A1 (fr) * | 2013-06-24 | 2014-12-26 | France Telecom | Procede d'amelioration du temps de changement entre programmes audiovisuels |
JP2015012305A (ja) * | 2013-06-26 | 2015-01-19 | ソニー株式会社 | コンテンツ供給装置、コンテンツ供給方法、プログラム、端末装置、およびコンテンツ供給システム |
JP6492006B2 (ja) * | 2013-07-02 | 2019-03-27 | サターン ライセンシング エルエルシーSaturn Licensing LLC | コンテンツ供給装置、コンテンツ供給方法、プログラム、および、コンテンツ供給システム |
FR3019428A1 (fr) * | 2014-03-31 | 2015-10-02 | Orange | Dispositif et procede de commande a distance de la restitution de contenus multimedia |
FR3022426A1 (fr) * | 2014-06-16 | 2015-12-18 | Orange | Gestion par un equipement intermediaire de la qualite de transmission d'un flux de donnees vers un terminal mobile |
US11677799B2 (en) * | 2016-07-20 | 2023-06-13 | Arris Enterprises Llc | Client feedback enhanced methods and devices for efficient adaptive bitrate streaming |
CN107659601B (zh) * | 2016-07-26 | 2019-12-17 | 中国科学院声学研究所 | 一种基于http自适应流的码率自适应方法 |
US20210289238A1 (en) * | 2017-01-31 | 2021-09-16 | Sony Corporation | Information processing apparatus and method |
-
2019
- 2019-11-05 FR FR1912374A patent/FR3102904A1/fr active Pending
-
2020
- 2020-11-04 EP EP20819810.1A patent/EP4055831A1/fr active Pending
- 2020-11-04 WO PCT/FR2020/051992 patent/WO2021089942A1/fr unknown
- 2020-11-04 US US17/774,413 patent/US11805290B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20220377396A1 (en) | 2022-11-24 |
US11805290B2 (en) | 2023-10-31 |
FR3102904A1 (fr) | 2021-05-07 |
WO2021089942A1 (fr) | 2021-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3127336B1 (fr) | Dispositif et procédé de commande a distance de la restitution de contenus multimedia | |
FR3094166A1 (fr) | Procédé de gestion de contenus multimédia et dispositif pour la mise en œuvre du procédé | |
EP4055831A1 (fr) | Procédé de gestion de zapping de contenus multimédias numériques obtenu par téléchargement progressif adaptatif (has), dispositif de gestion, lecteur de flux multimédia et programme d'ordinateur correspondants | |
WO2019220034A1 (fr) | Gestion du téléchargement progressif adaptatif d'un contenu numérique au sein d'un terminal de restitution d'un réseau de communication local | |
FR3081647A1 (fr) | Gestion du telechargement progressif adaptatif (has) d'un contenu numerique au sein d'un terminal lecteur de flux multimedia en temps reel. | |
EP3987820A1 (fr) | Procédé de gestion du téléchargement progressif adaptatif (has) d'un contenu numérique diffusé en temps réel, gestionnaire, terminal lecteur de flux multimédia et programme d'ordinateur correspondants | |
EP4035408A1 (fr) | Gestion du téléchargement progressif adaptatif d'un contenu numérique sur réseau mobile avec sélection d'un débit d'encodage maximum autorisé en fonction d'un godet de données | |
EP3926929B1 (fr) | Procédé de gestion de la lecture d'un contenu numérique au sein d'un terminal lecteur de contenus multimédias connecté à un dispositif de restitution | |
WO2023208688A1 (fr) | Gestion de la restitution d'un contenu multimédia | |
WO2021105585A1 (fr) | Procédé de gestion d'une liste de contenus accessibles au zapping, les contenus numériques étant téléchargeables en mode de téléchargement progressif adaptatif (has), dispositif de gestion, lecteur de flux multimédia et programme d'ordinateur correspondants | |
EP3840391A1 (fr) | Gestion de la restitution d'un contenu multimédia et d'une interface de navigation sur un écran | |
FR3093605A1 (fr) | Procédé de navigation accélérée dans un contenu numérique obtenu par téléchargement progressif adaptatif (HAS), gestionnaire, lecteur de flux multimédia et programme d’ordinateur correspondants. | |
FR3093603A1 (fr) | Procédé de navigation accélérée dans un contenu numérique obtenu par téléchargement progressif adaptatif (HAS), gestionnaire, lecteur de flux multimédia et programme d’ordinateur correspondants. | |
EP3846489A1 (fr) | Procédé de gestion d'un téléchargement progressif et adaptatif d'un contenu numérique par un terminal lecteur de flux multimédia connecté à un réseau de communication, dispositif de gestion, terminal lecteur de flux multimédia et programme d'ordinateur correspondants | |
EP2819424A1 (fr) | Procédé d'amelioration du temps de changement entre programmes audiovisuels | |
EP4109905A1 (fr) | Gestion du téléchargement progressif adaptatif d'un contenu numérique en mode économiseur d'écran | |
WO2021209706A1 (fr) | Gestion de l'accès à des contenus numériques accessibles en téléchargement progressif adaptatif et encodés selon une méthode d'encodage à débit variable, en fonction d'une charge réseau | |
FR3114719A1 (fr) | Procédé de gestion de la lecture d’un contenu numérique au sein d’un terminal lecteur de contenus multimédias connecté à un dispositif de restitution | |
FR3103668A1 (fr) | Gestion du téléchargement progressif adaptatif d’un contenu numérique sur réseau mobile avec détermination d’un débit d’encodage maximum autorisé sur une session en fonction d’un godet de données | |
FR3114720A1 (fr) | Gestion du téléchargement progressif adaptatif d’un contenu tenant compte de la qualité du signal échangé entre le terminal client et le point d’accès au réseau | |
FR3096210A1 (fr) | Procédé de transmission d’un contenu numérique ayant plusieurs versions accessibles depuis un serveur de contenus à destination d’un terminal de restitution. | |
WO2020234030A1 (fr) | Restitution d'un contenu en arrière-plan ou sous forme d'incrustation dans le cadre d'un téléchargement progressif adaptatif de type has | |
FR3116684A1 (fr) | Gestion du téléchargement progressif adaptatif d’un contenu acheté, tenant compte d’un historique de niveaux de qualité de lecture de contenu par un terminal lecteur de flux multimédia | |
FR3128084A1 (fr) | procédé de gestion de la lecture d’un contenu multimédia. | |
FR3143930A1 (fr) | Gestion de gestion de la fourniture d’adresses de segments d’un contenu multimédia |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220419 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ORANGE |
|
17Q | First examination report despatched |
Effective date: 20240104 |