CN101378491B - Method, system and entity for implementing PIP video - Google Patents
Method, system and entity for implementing PIP video Download PDFInfo
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- CN101378491B CN101378491B CN2007101425776A CN200710142577A CN101378491B CN 101378491 B CN101378491 B CN 101378491B CN 2007101425776 A CN2007101425776 A CN 2007101425776A CN 200710142577 A CN200710142577 A CN 200710142577A CN 101378491 B CN101378491 B CN 101378491B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4347—Demultiplexing of several video streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—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
- H04N21/482—End-user interface for program selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
Abstract
The invention discloses a method for realizing P-I-P video, comprising the following steps: a service control function entity (SCF) reads a request according to the P-I-P picture coming from user equipment (UE), and returns P-I-P transit information containing a media transit address to the UE, so that the UE can request the receiving of a media stream of a plurality of video windows to elementary forwarding function/elementary control function (EFF/ECF) according to the media transit address, and handle the received media stream of the video windows together, so as to display the P-I-P picture. Moreover, the invention also discloses a system and an entity to realize the P-I-P video. The technical proposal disclosed by the invention can realize the P-I-P video in an IPTV structure on the basis of IMS.
Description
Technical field
The present invention relates to Internet Protocol Television (IPTV) technology, relate in particular to a kind of method, system and entity apparatus of realizing the picture-in-picture video.
Background technology
IPTV is a kind of broadband cabled television network that utilizes, and integrates multiple technologies such as the Internet, multimedia, communication, and the brand-new technology of the multiple interactive services that comprises Digital Television is provided to the domestic consumer.IPTV uses transmission control protocol/Internet Protocol (TCP/IP) to carry out clean culture, broadcasting or group broadcasting video frequency business as bearing protocol, effectively television network, three fields of telephone network and the Internet combined, and be the most representative business of the integration of three networks.
IP Multimedia System (IMS, IP Multimedia Subsystem) is an IP-based standards system that is independent of access technology, IMS and existing voice and data network (no matter be as fixed network users such as PSTN, ISDN, internets, still as mobile network users such as GSM, CDMA) can intercommunications.The IMS system makes can set up reciprocity IP communication by various types of clients, and can obtain needed service quality.Except that session management, the IMS system also relates to the service finished provides necessary function (for example registration, safety, charging, carrying control, roaming).It is the core that the IMS system has constituted IP kernel heart net.
In the IMS system, Proxy Call Session Control Function (P-CSCF) and service call conversation control function (S-CSCF) are the important entities in the IMS system.Wherein, P-CSCF is responsible for checking request, and is responsible for handling and transmitted response, all is transmitted to the target of appointment by P-CSCF from subscriber equipment (UE) or conversation initialized protocol (SIP) signaling flow of issuing UE.S-CSCF is positioned at home network, is the core of IMS system, for UE carries out session control and registration service.When UE is in the session, S-CSCF peace preservation association speech phase, and according to the needs of Virtual network operator to service support, carry out alternately with service platform and billing function.In the network of an operator, a plurality of S-CSCF can be arranged, and these S-CSCF can have different functions.
For the unified control that realizes that IMS inserts fixed network users, in the network architecture, introduced Network Attachment Subsystem (NASS, Network Attachment Sub-System) and resource and accommodation control subsystem (RACS, Resource and Admission Control Subsystem).NASS is used to finish the management that the user is attached to access network, comprises that the user rs authentication and the network address are distributed, location management.RACS then is mainly used in and finishes policy control, resource reservation and admittance control, and the service/application aspect can utilize RACS request Access Network to reserve relevant resource.P-CSCF in the IMS system can carry out the reservation or the release of resource alternately with RACS.
In addition, in the network architecture function that realizes the multicast control point is divided into basic forwarding capability (EFF) and basic control function (ECF).Wherein, EFF mainly is responsible for finishing duplicating of port data bag, and ECF mainly is responsible for handling the relevant agreement of multicast.
At present the IPTV framework based on IMS that starts will directly be reused the related functional entities of IMS, and by suitably increasing new functional entity and to the expansion of existing capability entity correlation function, realizing the support to the IPTV business.Wherein, each IPTV business is made up of pair of IP TV Service Control Function and IPTV media function (MF).Wherein, SCF is a kind of sip application server, and function comprises: authorize during (1) conversation initialization; Whether (2) implementation modification flow process is checked user's data, allow the user capture should business with decision; (3) number of the account control; (4) select corresponding M F.MF is responsible for the control of Media Stream and submits, and can be divided into media control function (MCF) and medium and submit function (MDF).
In addition, in the network architecture, also increase service discovering function (SDF) and service selection functional (SSF), be used to UE to select an IPTV business to submit necessary information.Wherein, SSF provides the tabulation of a series of available service that UE can browse and select.
But in IPTV framework based on IMS, when wishing to realize watching a live telecast (LTV) channel for the user, also has the relevant small video window of one or more channels therewith (as the sign language window, the multi-angle window) shows simultaneously, when perhaps the user wishes to realize watching the picture-in-picture channel programs such as video window of a plurality of channels simultaneously, still do not have definite scheme in the existing IPTV network architecture, therefore make to have now in the IPTV technology and still can't realize the picture-in-picture channel program based on IMS.
Summary of the invention
In view of this, provide a kind of method that realizes the picture-in-picture video on the one hand in the embodiment of the invention, a kind of system and SCF that realizes the picture-in-picture video is provided on the other hand, so that realize the picture-in-picture channel program in the IPTV technology.
The method of the realization picture-in-picture video that the embodiment of the invention provides comprises:
Business control function body SCF is according to watching request from the picture-in-picture of user equipment (UE), return the picture-in-picture transmission information that comprises the media delivery address to UE, described media delivery address is: the multicast address of corresponding one tunnel transport stream, wherein, the transport stream of described multicast address correspondence is used to transmit the Media Stream of a plurality of video windows, and each video window Media Stream is provided with video labeling; Be used for UE and carry joining request of described media delivery address to basic forwarding capability/basic control function EFF/ECF transmission, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described media delivery address correspondence, UE receives described transport stream, and required video window Media Stream is merged processing according to the video labeling of each video window Media Stream in the reception transport stream, show the picture-in-picture video.
The method of the realization picture-in-picture video that the embodiment of the invention provides comprises:
Business control function body SCF returns the picture-in-picture transmission information that comprises the media delivery address according to watching request from the picture-in-picture of user equipment (UE) to UE, and described media delivery address is: the main multicast address and the auxilliary multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of main multicast address correspondence is used to transmit the Media Stream of main video window, and the transport stream of auxilliary multicast address correspondence is used to transmit each additional video windows media stream, and each additional video windows media stream is provided with video labeling; Be used for UE and carry joining request of described main multicast address to the EFF/ECF transmission, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described main multicast address correspondence, UE sends to EFF/ECF and carries joining request of described auxilliary multicast address, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described auxilliary multicast address correspondence, UE receives the two-way transport stream, and required additional video windows media stream and main video window Media Stream are merged processing according to the video labeling of each additional video windows media stream in the reception transport stream, show the picture-in-picture video.
The method of the realization picture-in-picture video that the embodiment of the invention provides comprises:
Business control function body SCF returns the picture-in-picture transmission information that comprises the media delivery address according to watching request from the picture-in-picture of user equipment (UE) to UE, and described media delivery address is: a plurality of multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of each multicast address correspondence is used to transmit the Media Stream of a video window; Be used for UE and send joining request of a plurality of multicast address that carry required video window Media Stream correspondence to EFF/ECF, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described multicast address correspondence, UE receives described transport stream, and each the video window Media Stream in the reception transport stream merged processing, show the picture-in-picture video.
The system of the realization picture-in-picture video that the embodiment of the invention provides comprises:
Business control function body SCF is used for returning the picture-in-picture transmission information that comprises the media delivery address to UE according to watching request from the picture-in-picture of UE;
UE is used for asking the reception of the Media Stream of a plurality of video windows according to described media delivery address to EFF/ECF, and the Media Stream of a plurality of video windows of being received is merged processing, shows the picture-in-picture video; To the leave request of described EFF/ECF transmission at the one or more video windows in the picture-in-picture video;
EFF/ECF is used for according to from the described request of UE, the data of duplicating the Media Stream of described a plurality of video windows to UE place port; According to leaving request, stop data to the described one or more video window Media Streams of port copy transmissions at described UE place from UE described.
The SCF entity apparatus that the embodiment of the invention provides comprises:
The message sink module, the picture-in-picture that is used to receive from UE is watched request;
The feedback information module is used for watching request according to described picture-in-picture, returns the picture-in-picture transmission information that comprises the media delivery address to UE, wherein,
Described media delivery address is: the multicast address of corresponding one tunnel transport stream, wherein, the transport stream of described multicast address correspondence is used to transmit the Media Stream of a plurality of video windows, and each video window Media Stream is provided with video labeling, is used for UE and carries joining request of described media delivery address to basic forwarding capability/basic control function EFF/ECF transmission; Or,
Described media delivery address is: the main multicast address and the auxilliary multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of main multicast address correspondence is used to transmit the Media Stream of main video window, the transport stream of auxilliary multicast address correspondence is used to transmit each additional video windows media stream, and each additional video windows media stream is provided with video labeling, is used for UE and carries joining request of described main multicast address to the EFF/ECF transmission; Or,
Described media delivery address is: a plurality of multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of each multicast address correspondence is used to transmit the Media Stream of a video window, is used for UE and sends joining request of a plurality of multicast address that carry required video window Media Stream correspondence to EFF/ECF.
From such scheme as can be seen, watch request by the SCF basis from the picture-in-picture of UE in the embodiment of the invention, return the picture-in-picture transmission information that comprises the media delivery address to UE, so that UE asks the reception of the Media Stream of a plurality of video windows to EFF/ECF according to this media delivery address, and the Media Stream of a plurality of video windows of being received merged processing, show the picture-in-picture video, thereby make and in IPTV framework, realized the picture-in-picture video based on IMS.
Description of drawings
Fig. 1 is the exemplary process diagram that realizes the method for picture-in-picture video in the embodiment of the invention;
Fig. 2 is the exemplary block diagram that realizes the system of picture-in-picture video in the embodiment of the invention;
Fig. 3 is the structural representation of SCF in the system shown in Figure 2;
Fig. 4 is for realizing the schematic flow sheet of picture-in-picture video in the example one of the present invention;
Fig. 5 is for realizing the schematic flow sheet of picture-in-picture video in the example two of the present invention;
Fig. 6 is for realizing the schematic flow sheet of picture-in-picture video in the example three of the present invention;
Fig. 7 is for realizing the schematic flow sheet of picture-in-picture video in the example four of the present invention;
Fig. 8 is for realizing the schematic flow sheet of picture-in-picture video in the example five of the present invention.
Embodiment
In the embodiment of the invention, SCF is according to watching request from the picture-in-picture of UE, return the picture-in-picture transmission information that comprises the media delivery address to UE, UE receives according to the Media Stream of the media delivery address in the picture-in-picture transmission information that is received to a plurality of video windows, and the Media Stream of a plurality of video windows of being received merged processing, show the picture-in-picture video.
Below in conjunction with drawings and the specific embodiments method, system and the entity of realizing the picture-in-picture video among the present invention is described in further detail respectively.
Fig. 1 is the exemplary process diagram that realizes the method for picture-in-picture video in the embodiment of the invention.As shown in Figure 1, this flow process comprises the steps:
In this step, it is multiple that UE watches the specific implementation method of request to have to SCF transmission picture-in-picture, can be implicit expression, also can be explicit.
Wherein, the implementation method of implicit expression can be: when UE initiates the conversation initialization request of broadcasting (BC) business to SCF, can carry picture-in-picture in this conversation initialization request and watch request mark.Or: UE is configured to picture-in-picture by network side in advance and watches business to the BC business that SCF initiates.
Explicit implementation method can be: UE sends special picture-in-picture to SCF and watches request message.For example, this special picture-in-picture is watched request message can be the modification request of BC business or heavily consult request, wherein, revises request or the request of heavily consulting can be renewal (Update) message in the sip message or heavily invite (Reinvite) message etc.
Wherein, when UE watches request to SCF transmission picture-in-picture, can transmit by P-CSCF among the IMS and S-CSCF.
Specific implementation process in this step can have multiple, wherein a kind ofly can be: SCF returns the picture-in-picture transmission information that comprises the media delivery address in the foundation of confirming session or when revising by S-CSCF and P-CSCF to UE.
Wherein, except can comprising the media delivery address, also can comprise other information relevant, for example transmission quality information in the picture-in-picture transmission information with the Media Stream of a plurality of video windows.
Wherein, the transmission of the Media Stream of a plurality of video windows can have various ways, as: can be by one tunnel transport stream (TS) transmission, also can transmit by the transport stream of transmitting main video window Media Stream respectively and the transport stream of transmitting other additional video windows media stream, perhaps also can be by transmitting the multiplexing flow transmission of a video window Media Stream respectively.
Correspondingly, the media delivery address also can have following three kinds of situations at least:
Situation one: the media delivery address can be a multicast address of corresponding one tunnel transport stream.At this moment, the transport stream of this multicast address correspondence is used to transmit the Media Stream of a plurality of video windows, and for the ease of the differentiation to each video window Media Stream, in this transport stream each video window Media Stream is provided with video labeling.
Situation two: the media delivery address can also be the main multicast address and the auxilliary multicast address of corresponding one tunnel transport stream respectively.At this moment, the transport stream of main multicast address correspondence is used to transmit the Media Stream of main video window, the transport stream of auxilliary multicast address correspondence is used to transmit each additional video windows media stream, equally, differentiation for the ease of to each additional video windows media stream is provided with video labeling to each additional video windows media stream in the transport stream of auxilliary multicast address correspondence.
Situation three: the media delivery address can also be a plurality of multicast address of corresponding one tunnel transport stream of difference.At this moment, the transport stream of each multicast address correspondence is used to transmit the Media Stream of a video window.
Specific implementation process in this step can have multiple, and the various situations in the corresponding step 102 can comprise following three kinds at least:
First kind: the situation one in the corresponding step 102, UE is according to the picture-in-picture transmission information that is received, carry this media delivery address to the EFF/ECF transmission, be above-mentioned corresponding one the tunnel to transmit the joining request an of multicast address of the transport stream of a plurality of video window Media Streams, EFF/ECF joins request according to this, the port at the UE place by scope check is duplicated the data of the transport stream of this media delivery address correspondence, being used for UE receives this transport stream, UE merges processing according to the video labeling of each video window Media Stream in the transport stream that is received to required video window Media Stream, shows the picture-in-picture video.
Second kind: the situation two in the corresponding step 102, UE determines main multicast address and auxilliary multicast address according to the picture-in-picture transmission information that is received, at first send and carry joining request of main multicast address to EFF/ECF, EFF/ECF joins request according to this, the port at the UE place by scope check is duplicated the data of the transport stream of main multicast address correspondence, afterwards, UE sends to EFF/ECF and carries joining request of auxilliary multicast address, EFF/ECF joins request according to this, the port at the UE place by scope check is duplicated the data of the transport stream of auxilliary multicast address correspondence, UE receives the two-way transport stream, and required additional video windows media stream and main video window Media Stream are merged processing according to the video labeling of each additional video windows media stream in the reception transport stream, show the picture-in-picture video.
The third: the situation three in the corresponding step 102, UE determines each multicast address according to the picture-in-picture transmission information that is received, and to a plurality of the joining request of EFF/ECF transmission, during joining request, each carries a multicast address of a required video window Media Stream correspondence, EFF/ECF is according to respectively joining request, the port at the UE place by scope check is duplicated the data of the transport stream of corresponding multicast address correspondence, UE receives described transport stream, and each the video window Media Stream in the reception transport stream merged processing, show the picture-in-picture video.
In the present embodiment, the picture-in-picture video can be the picture-in-picture video that shows each video window with impartial window side by side; It also can be the picture-in-picture video that shows each video window with optional position and size tissue.
Further, in the process of watching the picture-in-picture video, can carry out cassette tape formula image record/play machine VCR operations such as playback or slow motion demonstration to a video window in the picture-in-picture video.During specific implementation, UE can set up the media channel of control channel and clean culture by SCF and MF, and wherein, control channel is used to transmit the control signaling of carrying out the VCR operation, and the media channel of clean culture is used to transmit the Media Stream of the video window that carries out the VCR operation.Wherein, control channel can be real-time Transmission stream protocol (RTSP) control channel.
In addition, also can cancel the one or more video windows in the picture-in-picture video.The method of cancellation can have multiple, as being: the demonstration of the Media Stream of one or more video windows that the UE shielding will be cancelled; Perhaps also can be: UE sends the request of leaving at one or more video window Media Streams to EFF/ECF, and EFF/ECF leaves request according to this, stops the data to the transport stream of these one or more video window Media Streams of port copy transmissions at UE place; Perhaps can also be: UE sends the request of cancelling the one or more video windows in the picture-in-picture video to SCF, and SCF carries out discharging the reserved resource of these one or more video windows alternately according to this request notice P-CSCF and RACS.
More than the method that realizes the picture-in-picture video in the embodiment of the invention is described in detail, again the system that realizes the picture-in-picture video in the embodiment of the invention is described in detail below.
Fig. 2 is the exemplary block diagram of the system of realization picture-in-picture video.As shown in Figure 2, this system comprises: SCF, UE and EFF/ECF.
Wherein, SCF is used for returning the picture-in-picture transmission information that comprises the media delivery address to UE according to watching request from the picture-in-picture of UE.
Wherein, watching request from the picture-in-picture of UE can be implicit expression, also can be explicit.When comprising of implicit expression: UE initiates the conversation initialization request of broadcasting (BC) business to SCF, in this conversation initialization request, carry picture-in-picture and watch request mark.Or: UE initiates to be configured to picture-in-picture by network side in advance to SCF and watches professional BC business.Explicit can be: UE sends special picture-in-picture to SCF and watches request message.Wherein, when UE watches request to SCF transmission picture-in-picture, can transmit by P-CSCF among the IMS and S-CSCF.
SCF returns the picture-in-picture transmission information that comprises the media delivery address to UE: SCF returns the picture-in-picture transmission information that comprises the media delivery address in the foundation of confirming session or when revising by S-CSCF and P-CSCF to UE.Wherein, except can comprising the media delivery address, also can comprise other information relevant in the picture-in-picture transmission information with the Media Stream of a plurality of video windows.
Wherein, the media delivery address also can be consistent with three kinds of situations of description in the step 102 shown in Figure 1, gives unnecessary details no longer one by one herein.
UE is used for asking the reception of the Media Stream of a plurality of video windows according to described media delivery address to EFF/ECF, and the Media Stream of a plurality of video windows of being received is merged processing, shows the picture-in-picture video.
EFF/ECF is used for according to from the described request of UE, the data of duplicating the Media Stream of above-mentioned a plurality of video windows to UE place port.
In the present embodiment, the specific operation process of UE and EFF/ECF also can be consistent with three kinds of situations describing in the step 103 shown in Figure 1, gives unnecessary details no longer one by one herein.
Wherein, the picture-in-picture video can be the picture-in-picture video that shows each video window with impartial window side by side; It also can be the picture-in-picture video that shows each video window with optional position and size tissue.
In addition, in this system, UE can further shield the demonstration of the Media Stream of the one or more video windows that will cancel.
And/or, UE is to the leave request of EFF/ECF transmission at described one or more video window Media Streams, EFF/ECF leaves request according to this, stops the data to the transport stream of the described one or more video window Media Streams of port copy transmissions at described UE place.
And/or, further comprise in this system: P-CSCF and RACS.Wherein, UE sends the request of cancelling the one or more video windows in the picture-in-picture video to SCF, and SCF discharges the reserved resource of these one or more video windows alternately according to described request notice P-CSCF and RACS.
Further, this system also can comprise MF, be used for setting up the control channel that is used to transmit the control signaling of carrying out the VCR operation and being used to transmit the unicast media passage of the video window Media Stream that carries out the VCR operation, so that UE passes through the VCR operation that the control channel set up and unicast media passage are realized single video window by SCF and UE.
SCF in the embodiment of the invention can have multiple way of realization when specific implementation, wherein a kind of way of realization can comprise as shown in Figure 3: message sink module and feedback information module.
Wherein, the message sink module picture-in-picture that is used to receive from UE is watched request.
The feedback information module is used for watching request according to described picture-in-picture, returns the picture-in-picture transmission information that comprises the media delivery address to UE.
Wherein, the picture-in-picture from UE that the message sink module receives is watched request, can be implicit expression, also can be explicit.When comprising of implicit expression: UE initiates the conversation initialization request of BC business to SCF, in this conversation initialization request, carry picture-in-picture and watch request mark.Or: UE initiates to be configured to picture-in-picture by network side in advance to SCF and watches professional BC business.Explicit can be: UE sends special picture-in-picture to SCF and watches request message.
The feedback information module is returned the picture-in-picture transmission information that comprises the media delivery address to UE: SCF returns the picture-in-picture transmission information that comprises the media delivery address in the foundation of confirming session or when revising by S-CSCF and P-CSCF to UE.Wherein, except can comprising the media delivery address, also can comprise other information relevant in the picture-in-picture transmission information with the Media Stream of a plurality of video windows.
Wherein, the media delivery address also can be consistent with three kinds of situations of description in the step 102 shown in Figure 1, gives unnecessary details no longer one by one herein.
Be described in detail below by method, system and the entity of several concrete examples above-mentioned realization picture-in-picture video.
Example one:
Comprise in this example system: UE, EFF/ECF, RACS, P/S-CSCF and SCF.Media delivery address in this example is a multicast address, is used for the transport stream of the corresponding a plurality of video window Media Streams of transmission, and in this transport stream each video window Media Stream is provided with video labeling.Fig. 4 shows the schematic flow sheet of realizing the picture-in-picture video in the example one of the present invention.As shown in Figure 4, this flow process comprises the steps:
Step 401, UE initiates the conversation initialization request of BC business, and the session initialization request is sent to P/S-CSCF among the IMS.
Can carry picture-in-picture in the conversation initialization request wherein and watch request mark, also can not carry this sign, and decide according to the configuration of network side itself, the BC business that for example UE initiated is watched business for network side is preconfigured to picture-in-picture, and this dual mode all is the request picture-in-picture of implicit expression.
Step 402, this conversation initialization request are routed to the SCF of control BC business by P/S-CSCF.
Step 403, UE and SCF carry out the negotiations process of the required network parameter of BC business.
The operation of this step can realize in step 402 and step 404, perhaps further, carries out interacting message by UE and S-CSCF again and finish after step 404.
Step 404, SCF returns session to P-CSCF and confirms response.
In this step, the network parameter of being consulted can be notified to P-CSCF, further, the media delivery address can be handed down to P-CSCF in this step, perhaps also can P-CSCF be handed down in the media delivery address by other existing message or newly-increased independent message.
Step 405, P-CSCF and RACS carry out the reservation of resource alternately.
In this step, P-CSCF sends resource reservation request according to the network parameter that is received to RACS, and RACS receives information in asking according to self strategy and institute, for the resource of P-CSCF authorization requests is reserved.
Step 406, P-CSCF sends the conversation initialization response to UE.
In this step, P-CSCF is transmitted to UE with the media delivery address that is received.
Step 407, UE sends Internet Group Management Protocol (IGMP) message to ECF/EFF, and request adds the multicast group of the media delivery address representative that is obtained.
In this step, carry the media delivery address in the IGMP message.
Step 408, ECF/EFF carries out scope check according to the user's who obtains channel and service authority information to joining request of user, after scope check passes through, the port at UE place is duplicated the transmit flow data of this media delivery address correspondence.
Step 409, UE receives the Media Stream with a plurality of video windows of a transport stream transmission.
Step 410, UE watches the video labeling of each video window Media Stream in demand and the transport stream that the different video window stream in the transport stream that receives is brushed choosing according to user's picture-in-picture, after picking out video window content that the user wants to appreciate and merging, show that the picture-in-picture video gives the user.
In this example, when the one or more video window in the hope cancellation picture-in-picture video, UE can directly shield the demonstration of the Media Stream of the one or more video windows that will cancel, when hope increased one or more video window, UE showed after the Media Stream of a plurality of video windows of being received is merged again.When all video windows were left in hope, UE can be to the leave request of EFF/ECF transmission at this transport stream, and EFF/ECF leaves request according to this, stops the data to this transport stream of port copy transmissions at UE place.
Example two:
Comprise in this example system: UE, EFF/ECF, RACS, P/S-CSCF and SCF.Media delivery address in this example is two multicast address, promptly main multicast address and auxilliary multicast address.Wherein main multicast address is used for the media transport stream of a corresponding main video window of transmission; Auxilliary multicast address is used for corresponding each additional video windows media transport stream of transmission, and in this transport stream each additional video windows media stream is provided with video labeling.Fig. 5 shows the schematic flow sheet of realizing the picture-in-picture video in the example two of the present invention.As shown in Figure 5, this flow process comprises the steps:
Step 501, the session of BC business is set up and is finished, and UE obtains two multicast address, main multicast address and the auxilliary multicast address of representing the picture-in-picture video.
This step is consistent to step 406 with step 401 shown in Figure 4, can be with picture-in-picture to watch request mark in the conversation initialization request of this moment, can be not yet with and decide according to the configuration of network side itself, the BC business that for example UE initiated is watched business for network side is preconfigured to picture-in-picture, and this dual mode all is the request picture-in-picture of implicit expression.
Wherein, when SCF sends to UE with main multicast address and auxilliary multicast address, can transmit by P/S-CSCF equally, also need to be provided with main multicast address and auxilliary multicast address sign simultaneously, promptly SCF sends the picture-in-picture transmission information that comprises media delivery address and sign thereof to UE.
Step 502, UE sends IGMP message to ECF/EFF, and request adds the multicast group of the main multicast address representative that is obtained.
In this step, carry main multicast address in the IGMP message.
Step 503, ECF/EFF duplicates the transmit flow data of this main multicast address correspondence to the port at UE place after scope check passes through, receive the Media Stream of main video window for UE.
Step 504, the user selects to watch the picture-in-picture video-see, and this step also can be carried out between step 507 and step 508.
Step 505, UE sends IGMP message to ECF/EFF, and request adds the multicast group of the auxilliary multicast address representative that is obtained.
In this step, carry auxilliary multicast address in the IGMP message.
Step 506, ECF/EFF duplicates the transmit flow data of this auxilliary multicast address correspondence to the port at UE place after scope check passes through, receive the Media Stream of additional video window for UE.
Step 507, UE receives the two-way Media Stream simultaneously, and one the tunnel is the Media Stream of main video window, and another road is the Media Stream that has comprised a plurality of additional video windows.
Step 508, terminal is selected the content in the Media Stream of additional video window, after selecting the user and wanting the additional video windows content watched and main video window content to merge, shows that the picture-in-picture video gives the user.When customer requirements changes the demonstration of additional video window, in additional video windows media stream, screen window and the merging of main video window content of selecting the user to appreciate again by UE and be shown to the user.
Step 509 when the user will cancel the watching mode of picture-in-picture, is cancelled operation on UE.
Step 511, EFF/ECF stops the data to this Media Stream of port copy transmissions at UE place, and UE stops to receive the Media Stream of additional video window.
Step 510 and step 511 in the above-mentioned flow process, can also be UE after receiving user's cancellation operation requests, directly shield the demonstration of additional video window, only show the content of main video window.
Example three:
Comprise in this example system: UE, EFF/ECF, RACS, P/S-CSCF and SCF.Media delivery address in this example is a plurality of multicast address, and each multicast address is used for video window Media Stream of a corresponding transmission.Fig. 6 shows the schematic flow sheet of realizing the picture-in-picture video in the example three of the present invention.As shown in Figure 6, this flow process comprises the steps:
Step 601, session is set up and is finished, and terminal has obtained to represent a plurality of multicast address of picture-in-picture video.
This step is consistent to step 406 with step 401 shown in Figure 4, can be with picture-in-picture to watch request mark in the conversation initialization request of this moment, can be not yet with and decide according to the configuration of network side itself, the BC business that for example UE initiated is watched business for network side is preconfigured to picture-in-picture, and this dual mode all is the request picture-in-picture of implicit expression.
Step 602, the user initiates the request that the picture-in-picture channel is watched.
Step 603 is to step 604, and UE sends IGMP message according to user's demand to the ECF/EFF terminal, and request adds a plurality of multicast groups of the picture-in-picture video of the required appreciation of access customer.
Wherein, the number of IGMP message is corresponding with the video window number, and carries a multicast address in each IGMP message, the Media Stream of a corresponding video window of multicast address.
Step 605, ECF/EFF duplicates the transmit flow data of corresponding multicast address correspondence to the port at UE place after scope check passes through.
On behalf of a plurality of transport stream of a video window Media Stream, step 606 be transferred to UE simultaneously respectively.
Step 607, UE merges processing to the Media Stream of received a plurality of video windows, shows that the picture-in-picture video is to the user.These video windows can have the branch of primary and secondary, also can not have the branch of primary and secondary.UE can carry out random combination and adjust its position and size these video window stream.
Step 608, the user cancels the one or more video windows in the picture-in-picture video.
Step 610, ECF/EFF stops corresponding ports copy transmissions flow data.(optional)
Step 611, the demonstration of the one or more video windows in the terminal cancellation picture-in-picture.
In the above-mentioned flow process, step 610 and step 611, can also be UE after receiving user's cancellation operation requests, directly shielding needs the demonstration of the video window of cancellation.
Example four:
Comprise in this example system: UE, EFF/ECF, RACS, P/S-CSCF and SCF.In this example, UE watches request to be notified to SCF by the mode that shows picture-in-picture.Fig. 7 shows the schematic flow sheet of realizing the picture-in-picture video in the example three of the present invention.As shown in Figure 7, this flow process comprises the steps:
Step 701, session is set up and is finished.
Process and session of the prior art are set up in session in this step, and to set up process consistent, no longer describes in detail herein.
Step 702, the user initiates the request of picture-in-picture video-see.
Step 703, UE watches request to the picture-in-picture that SCF initiates to show, UE initiates media re-negotiation in the present embodiment, obtains the picture-in-picture transmission information that comprises the media delivery address, and asks the reception of the Media Stream of a plurality of video windows to EFF/ECF according to the media delivery address that is obtained.
In this step, in the process of media re-negotiation, to set up process similar with the BC session, and UE can will carry out the media re-negotiation request or the request of revising sends to SCF by P/S-CSCF; SCF can send to UE by the picture-in-picture transmission information that P/S-CSCF will comprise the media delivery address; P-CSCF and RACS carry out the reservation of resource alternately.
Wherein, the media delivery address and according to the media delivery address to EFF/ECF any situation that to ask the process of reception of the Media Stream of a plurality of video windows can be example one to the example three, give unnecessary details no longer one by one herein.
Step 704, the Media Stream of a plurality of video windows is transferred to UE simultaneously.
Step 705, UE merges processing to the Media Stream of received video window, shows that the picture-in-picture video is to the user.
Step 706, the user cancels the one or more video windows in the picture-in-picture channel.
Step 707 is to step 708, and UE watches request to the cancellation picture-in-picture that SCF initiates to show, UE initiates media re-negotiation in the present embodiment, the transfer resource of some reservations of request cancellation.(optional)
In this step, in the media re-negotiation process, P-CSCF and RACS carry out the heavily reservation of resource alternately, or discharge the part resource of reserving.
Step 709, the demonstration of the one or more video windows in the terminal cancellation picture-in-picture.
In the above-mentioned flow process, step 707 is to step 708, can also be that UE is after receiving user's cancellation operation requests, directly shielding needs the demonstration of the video window of cancellation, or send IGMP Leave message, the transport stream that stops to duplicate the corresponding video window by EFF/ECF to EFF/ECF at the video window that will cancel.
Example five:
Comprise in this example system: UE, EFF/ECF, RACS, P/S-CSCF and SCF.In this example the process of carrying out the VCR operation is described in detail.Fig. 8 shows the schematic flow sheet of realizing the picture-in-picture video in the example five of the present invention.As shown in Figure 8, this flow process comprises the steps:
Step 801, the picture-in-picture session is set up and is finished, and the user is appreciating the picture-in-picture program.Any one that its method for building up can be above-mentioned example one to the example four.
Step 802, the user initiates time shift operation such as playback to a video window in the picture-in-picture video.
Step 803, the control channel of media channel and the RTSP of UE by setting up clean culture between SCF and the MF.
Wherein, control channel is used to transmit the control signaling of carrying out the VCR operation, and the media channel of clean culture is used to transmit the Media Stream of the video window that carries out the VCR operation.
Step 804, the Media Stream of the Media Stream of live video window and time shift video window passes to UE simultaneously.
Step 805, UE merges the Media Stream of the Media Stream of live video window and time shift video window and is shown to the user.
More than can carry out route, forwarding by other network entity according to prior art between the entity among each embodiment.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is preferred embodiment of the present invention; be not to be used to limit protection scope of the present invention; within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a method that realizes the picture-in-picture video is characterized in that, this method comprises:
Business control function body SCF is according to watching request from the picture-in-picture of user equipment (UE), return the picture-in-picture transmission information that comprises the media delivery address to UE, described media delivery address is: the multicast address of corresponding one tunnel transport stream, wherein, the transport stream of described multicast address correspondence is used to transmit the Media Stream of a plurality of video windows, and each video window Media Stream is provided with video labeling; Be used for UE and carry joining request of described media delivery address to basic forwarding capability/basic control function EFF/ECF transmission, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described media delivery address correspondence, UE receives described transport stream, and required video window Media Stream is merged processing according to the video labeling of each video window Media Stream in the reception transport stream, show the picture-in-picture video.
2. the method for claim 1 is characterized in that, described picture-in-picture from UE watches request to be: UE carries picture-in-picture and watches request mark in the conversation initialization request that sends to SCF;
Perhaps be: UE initiates to be configured in advance picture-in-picture to SCF and watches professional broadcast BC business;
Perhaps be: UE sends picture-in-picture to SCF and watches request message.
3. method as claimed in claim 2 is characterized in that, it is updating message or heavy invitation message that described picture-in-picture is watched request message.
4. the method for claim 1, it is characterized in that described SCF returns the picture-in-picture transmission information that comprises the media delivery address to UE and is: SCF returns the picture-in-picture transmission information that comprises the media delivery address by service call conversation control function S-CSCF and Proxy Call Session Control Function P-CSCF to UE.
5. a method that realizes the picture-in-picture video is characterized in that, this method comprises:
Business control function body SCF returns the picture-in-picture transmission information that comprises the media delivery address according to watching request from the picture-in-picture of user equipment (UE) to UE, and described media delivery address is: the main multicast address and the auxilliary multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of main multicast address correspondence is used to transmit the Media Stream of main video window, and the transport stream of auxilliary multicast address correspondence is used to transmit each additional video windows media stream, and each additional video windows media stream is provided with video labeling; Be used for UE and carry joining request of described main multicast address to the EFF/ECF transmission, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described main multicast address correspondence, UE sends to EFF/ECF and carries joining request of described auxilliary multicast address, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described auxilliary multicast address correspondence, UE receives the two-way transport stream, and required additional video windows media stream and main video window Media Stream are merged processing according to the video labeling of each additional video windows media stream in the reception transport stream, show the picture-in-picture video.
6. a method that realizes the picture-in-picture video is characterized in that, this method comprises:
Business control function body SCF returns the picture-in-picture transmission information that comprises the media delivery address according to watching request from the picture-in-picture of user equipment (UE) to UE, and described media delivery address is: a plurality of multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of each multicast address correspondence is used to transmit the Media Stream of a video window; Be used for UE and send joining request of a plurality of multicast address that carry required video window Media Stream correspondence to EFF/ECF, EFF/ECF joins request according to described, the port at the UE place by scope check is duplicated the data of the transport stream of described multicast address correspondence, UE receives described transport stream, and each the video window Media Stream in the reception transport stream merged processing, show the picture-in-picture video.
7. method as claimed in claim 6, it is characterized in that, this method further comprises: UE sets up the media channel of control channel and clean culture by SCF and media function MF, a video window in the picture-in-picture video is carried out cassette tape formula image record/play machine VCR operation, wherein, described control channel is used to transmit the control signaling of carrying out the VCR operation, and the media channel of described clean culture is used to transmit the Media Stream of the video window that carries out the VCR operation.
8. method as claimed in claim 6 is characterized in that, this method further comprises: the one or more video windows in the cancellation picture-in-picture video.
9. method as claimed in claim 8 is characterized in that, the one or more video windows in the described cancellation picture-in-picture video are:
The demonstration of the Media Stream of one or more video windows that the UE shielding will be cancelled;
And/or, UE is to the leave request of EFF/ECF transmission at described one or more video window Media Streams, EFF/ECF leaves request according to described, stops the data to the transport stream of the described one or more video window Media Streams of port copy transmissions at described UE place;
And/or UE sends the request of cancelling the one or more video windows in the picture-in-picture video to SCF, and SCF notifies P-CSCF and resource and accommodation control subsystem RACS to discharge the reserved resource of described one or more video windows alternately according to described request.
10. method as claimed in claim 6 is characterized in that, described picture-in-picture video is: the picture-in-picture video that shows each video window with impartial window side by side;
Perhaps be: the picture-in-picture video that shows each video window with optional position and size tissue.
11. a system that realizes the picture-in-picture video is characterized in that, this system comprises:
Business control function body SCF is used for returning the picture-in-picture transmission information that comprises the media delivery address to UE according to watching request from the picture-in-picture of UE;
UE is used for asking the reception of the Media Stream of a plurality of video windows according to described media delivery address to EFF/ECF, and the Media Stream of a plurality of video windows of being received is merged processing, shows the picture-in-picture video; To the leave request of described EFF/ECF transmission at the one or more video windows in the picture-in-picture video;
EFF/ECF is used for according to from the described request of UE, the data of duplicating the Media Stream of described a plurality of video windows to UE place port; According to leaving request, stop data to the described one or more video window Media Streams of port copy transmissions at described UE place from UE described.
12. system as claimed in claim 11 is characterized in that, described UE further shields the demonstration of the Media Stream of the one or more video windows that will cancel.
13. system as claimed in claim 11, it is characterized in that, this system further comprises: Proxy Call Session Control Function P-CSCF and resource and accommodation control subsystem RACS are used for discharging the reserved resource of one or more video windows alternately according to the response notice from SCF;
Described UE further sends the request of the one or more video windows in the cancellation picture-in-picture video to described SCF;
Described SCF further sends the response notice according to described request to P-CSCF.
14. system as claimed in claim 11, it is characterized in that, this system further comprises: media function MF is used for setting up control channel that is used to transmit the control signaling of carrying out the VCR operation and the unicast media passage that is used to transmit the video window Media Stream that carries out the VCR operation by SCF and UE;
Described UE realizes the VCR operation of single video window by described control channel and unicast media passage.
15. a business control function body device is characterized in that, this entity apparatus comprises:
The message sink module, the picture-in-picture that is used to receive from UE is watched request;
The feedback information module is used for watching request according to described picture-in-picture, returns the picture-in-picture transmission information that comprises the media delivery address to UE, wherein,
Described media delivery address is: the multicast address of corresponding one tunnel transport stream, wherein, the transport stream of described multicast address correspondence is used to transmit the Media Stream of a plurality of video windows, and each video window Media Stream is provided with video labeling, is used for UE and carries joining request of described media delivery address to basic forwarding capability/basic control function EFF/ECF transmission; Or,
Described media delivery address is: the main multicast address and the auxilliary multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of main multicast address correspondence is used to transmit the Media Stream of main video window, the transport stream of auxilliary multicast address correspondence is used to transmit each additional video windows media stream, and each additional video windows media stream is provided with video labeling, is used for UE and carries joining request of described main multicast address to the EFF/ECF transmission; Or,
Described media delivery address is: a plurality of multicast address of corresponding one tunnel transport stream of difference; Wherein, the transport stream of each multicast address correspondence is used to transmit the Media Stream of a video window, is used for UE and sends joining request of a plurality of multicast address that carry required video window Media Stream correspondence to EFF/ECF.
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| CN2007101425776A CN101378491B (en) | 2007-08-29 | 2007-08-29 | Method, system and entity for implementing PIP video |
| PCT/CN2008/071871 WO2009030133A1 (en) | 2007-08-29 | 2008-08-05 | A method, system and entity for realizing picture-in-picture video |
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| CN2007101425776A CN101378491B (en) | 2007-08-29 | 2007-08-29 | Method, system and entity for implementing PIP video |
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| EP2439925A4 (en) * | 2009-06-01 | 2014-04-16 | Zte Corp | Method, system and set-top box for realizing picture-in-picture in internet protocol tv |
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| CN102904918B (en) * | 2011-07-28 | 2017-06-09 | 腾讯科技（北京）有限公司 | The method for displaying and processing and system of network media information |
| CN103533426A (en) * | 2012-07-04 | 2014-01-22 | 珠海扬智电子科技有限公司 | Video-audio data combination method and system |
| KR102099594B1 (en) * | 2013-10-23 | 2020-04-10 | 엘지전자 주식회사 | Tv and operating method thereof |
| CN105792013B (en) * | 2014-12-25 | 2019-03-15 | 中国电信股份有限公司 | IPTV merges the method and system of visual telephone service, mixed screen system |
| CN107333144A (en) * | 2016-04-28 | 2017-11-07 | 深圳锐取信息技术股份有限公司 | Multichannel picture display process and device based on football race broadcast relay system |
| CN107547917B (en) * | 2016-06-27 | 2020-07-10 | 中兴通讯股份有限公司 | Channel playing and processing method and device and channel processing system |
| CN106792090B (en) * | 2016-12-15 | 2019-07-26 | 天脉聚源(北京)传媒科技有限公司 | A kind of method and device that intelligent video plays |
| CN107222775A (en) * | 2017-06-29 | 2017-09-29 | 徐文波 | Many picture methods to set up and device |
| CN110784735A (en) * | 2019-11-12 | 2020-02-11 | 广州虎牙科技有限公司 | Live broadcast method and device, mobile terminal, computer equipment and storage medium |
| CN111416988B (en) * | 2020-03-26 | 2021-10-01 | 四川长虹电器股份有限公司 | Control method for realizing multi-screen playing on set-top box based on IPTV network |
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