CN107181723A - A kind of media coding/decoding negotiation method and terminal device - Google Patents
A kind of media coding/decoding negotiation method and terminal device Download PDFInfo
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- CN107181723A CN107181723A CN201610140429.XA CN201610140429A CN107181723A CN 107181723 A CN107181723 A CN 107181723A CN 201610140429 A CN201610140429 A CN 201610140429A CN 107181723 A CN107181723 A CN 107181723A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
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Abstract
The present invention provides a kind of media coding/decoding negotiation method and terminal device.The media coding/decoding negotiation method, applied to first terminal equipment, including：First terminal equipment sends demand signalling and given at least one second terminal equipment, the demand signalling comprising the solicited message for obtaining the media coding/decoding capability collection that the second terminal equipment is supported；The first terminal equipment receives the media coding/decoding capability collection supported in the response signaling that at least one the second terminal equipment is sent according to the solicited message, the response signaling comprising the second terminal equipment；The media coding/decoding capability collection supported according at least one the second terminal equipment, consults with least one the second terminal equipment, obtains the first media encoding and decoding；Stereo process is carried out using the audio signal of the first media encoding and decoding and at least one the second terminal equipment.Such scheme, improves the success rate of media coding/decoding negotiation, in multi-party audio mixing, it is ensured that the audio mixing quality of terminal device.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of media coding/decoding negotiation method and terminal device.
Background technology
In IMS (IP Multimedia Subsystem, IP multimedia subsystem) network, when setting for communication
During for needing to carry out the negotiation of media coding/decoding capability, generally carry out in the following way：
The media coding/decoding capability of oneself is sent to the equipment B, Ran Houshe communicated with by mode 1, device A
Standby B determines the two media encoding and decoding used according to the media coding/decoding capability collection of device A, and by this media
Encoding and decoding are sent to device A；
The problem of such a mode is present be：When another equipment C being connected with device A is together real with equipment B
During existing tripartite's audio mixing, because of device A, can completely does not obtain equipment B and equipment C media coding/decoding capability collection,
Equipment B and equipment C can be caused although there are public media encoding and decoding to occur simultaneously, but because feeding back to the matchmaker of device A
Body encoding and decoding are different so that when carrying out tripartite's audio mixing, three can use 2 kinds of media encoding and decoding to realize and it
The audio mixing of his equipment, such a mode is higher to the Capability Requirement of device chip, or even influences whether audio mixing quality；
And if forcing to carry out audio mixing using a certain media encoding and decoding, the matchmaker may not be supported due to a certain equipment
Body encoding and decoding are so as to cause media negotiation failure.
Mode 2, when device A and equipment B carry out media coding/decoding negotiation, device A can send special
Inquiry signaling gives equipment B, with query facility B media coding/decoding capability；
The problem of such a mode is present be：Because the inquiry signaling can first reach network side, substantial amounts of inquiry signaling
The burden of network side can be increased, meanwhile, network side is not to be forwarded all inquiry signalings,
When network side does not forward inquiry signaling successfully, it is impossible to ensure the media encoding and decoding between device A and equipment B
The accuracy of negotiation.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of media coding/decoding negotiation method and terminal device, use
To solve existing media coding/decoding negotiation mode negotiation success rate can be caused low, in multi-party audio mixing, can deposited
The problem of audio mixing quality is influenceed.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of media coding/decoding negotiation method, should
For first terminal equipment, including：
First terminal equipment sends demand signalling and gives bag at least one second terminal equipment, the demand signalling
Containing the solicited message for obtaining the media coding/decoding capability collection that the second terminal equipment is supported；
The first terminal equipment receives at least one described second terminal equipment and sent according to the solicited message
Response signaling, the media coding/decoding capability supported comprising the second terminal equipment in the response signaling
Collection；
The media coding/decoding capability collection supported according at least one described second terminal equipment, with least one
The second terminal equipment is consulted, and obtains the first media encoding and decoding；
Mixed using the audio signal of the first media encoding and decoding and at least one the second terminal equipment
Sound processing.
Further, the first terminal equipment sends step of the demand signalling at least one second terminal equipment
It is rapid to be specially：
The first terminal equipment by IP multimedia subsystem IMS send demand signalling give at least one second
Terminal device.
Further, the response signaling is session initiation protocol signaling or Session Description Protocol signaling.
Further, the media coding/decoding capability supported according at least one described second terminal equipment
Collection, consults, the step of obtaining the first media encoding and decoding is specially with second terminal equipment at least one described：
If the media coding/decoding capability collection that at least one described second terminal equipment is supported and the first terminal
The media coding/decoding capability collection of equipment, which exists, to occur simultaneously, then obtain the first terminal equipment with described at least one
The first media encoding and decoding that second terminal equipment is supported.
The embodiment of the present invention provides a kind of first terminal equipment, including：
First sending module, at least one second terminal equipment, the request letter are given for sending demand signalling
The solicited message for obtaining the media coding/decoding capability collection that the second terminal equipment is supported is included in order；
First receiving module, sends out for receiving at least one described second terminal equipment according to the solicited message
The media encoding and decoding energy supported in the response signaling sent, the response signaling comprising the second terminal equipment
Power collection；
Negotiation module, for the media coding/decoding capability supported according at least one described second terminal equipment
Collection, consults with second terminal equipment at least one described, obtains the first media encoding and decoding；
Processing module, for utilizing the first media encoding and decoding and at least one the second terminal equipment
Audio signal carries out stereo process.
Further, first sending module specifically for：
Demand signalling is sent by IP multimedia subsystem IMS and gives at least one second terminal equipment.
Further, the negotiation module specifically for：
If the media coding/decoding capability collection that at least one described second terminal equipment is supported and the first terminal
The media coding/decoding capability collection of equipment, which exists, to occur simultaneously, then obtain the first terminal equipment with described at least one
The first media encoding and decoding that second terminal equipment is supported.
The embodiment of the present invention provides a kind of media coding/decoding negotiation method, applied to second terminal equipment, including：
Set in the demand signalling that reception first terminal equipment is sent, the demand signalling comprising acquisition second terminal
The solicited message of standby media coding/decoding capability collection；
According to the solicited message, response signaling is sent to the first terminal equipment, in the response signaling
The media coding/decoding capability collection supported comprising the second terminal equipment.
Further, it is described according to the solicited message, response signaling is sent to the first terminal equipment
Step is specially：
Response signaling is sent to the first terminal equipment by IP multimedia subsystem IMS.
Further, the response signaling is session initiation protocol signaling or Session Description Protocol signaling.
The embodiment of the present invention provides a kind of second terminal equipment, including：
In second receiving module, the demand signalling for receiving the transmission of first terminal equipment, the demand signalling
Include the solicited message for the media coding/decoding capability collection for obtaining second terminal equipment；
Second sending module, sets for according to the solicited message, sending response signaling to the first terminal
Media coding/decoding capability collection that is standby, being supported in the response signaling comprising the second terminal equipment.
The beneficial effects of the invention are as follows：
Such scheme, carry out media coding/decoding negotiation when, terminal device by active inquiry mode obtain with
It carries out the media coding/decoding capability collection of other terminal devices of audio mixing, is then set according to the other terminals obtained
Standby media coding/decoding capability collection carries out the negotiation of media encoding and decoding used during audio mixing, and such a mode is improved
The success rate of media coding/decoding negotiations, in multi-party audio mixing, it is ensured that the audio mixing quality of terminal device.
Brief description of the drawings
Fig. 1 represents the schematic flow sheet of the media coding/decoding negotiation method of the embodiment of the present invention one；
Fig. 2 represents that local device obtains the schematic flow sheet of the media coding/decoding capability collection of opposite equip.；
Fig. 3 represents that device A, equipment B and equipment C carry out the schematic flow sheet that media encoding and decoding are consulted again；
Fig. 4 represents the module diagram of the first terminal equipment of the embodiment of the present invention two；
Fig. 5 represents the schematic flow sheet of the media coding/decoding negotiation method of the embodiment of the present invention three；
Fig. 6 represents the module diagram of the second terminal equipment of the embodiment of the present invention four.
Embodiment
It is below in conjunction with accompanying drawing and specifically real to make the object, technical solutions and advantages of the present invention clearer
Applying example, the present invention will be described in detail.
The present invention can cause negotiation success rate low for existing media coding/decoding negotiation mode, in multi-party audio mixing
When, there is provided a kind of media coding/decoding negotiation method and terminal device for the problem of having influence audio mixing quality.
Embodiment one
As shown in figure 1, the media coding/decoding negotiation method of the embodiment of the present invention one, including：
Step 11, first terminal equipment sends demand signalling and gives at least one second terminal equipment；
Wherein, the media encoding and decoding energy supported in the demand signalling comprising the acquisition second terminal equipment
The solicited message of power collection；
It should be noted that the demand signalling is the signaling communicated between terminal device, it is existing signaling,
Such as the demand signalling can be INVITE signalings, and inquiry head, the inquiry are carried in the INVITE signalings
Head is used to inform that second terminal equipment needs to obtain the media coding/decoding capability collection that it is supported, wherein, should
It is above-mentioned solicited message to inquire about head.
Step 12, the first terminal equipment receives at least one described second terminal equipment according to the request
The response signaling that information is sent；
Wherein, the media coding/decoding capability collection supported in the response signaling comprising the second terminal equipment；
It should be noted that the response signaling can for session initiation protocol (Session Initiation Protocol,
SIP) signaling or Session Description Protocol (Session Description Protocol, SDP) signaling.
Step 13, the media coding/decoding capability collection supported according at least one described second terminal equipment, with
At least one described second terminal equipment is consulted, and obtains the first media encoding and decoding；
Step 14, believed using the audio of the first media encoding and decoding and at least one the second terminal equipment
Number carry out stereo process.
It should be noted that in the present embodiment, first terminal equipment obtains second terminal equipment by sending
The solicited message of media coding/decoding capability collection give at least one second terminal equipment, and according at least one second
The feedback of terminal device obtains the media coding/decoding capability collection of second terminal equipment, then in the matchmaker that they are supported
Body encoding and decoding choose a kind of media encoding and decoding and carry out media re-negotiation in occuring simultaneously, realize tripartite's (or multi-party)
Audio mixing.
It should be noted that generally first terminal equipment and second terminal equipment in communication, it is necessary to by IMS
Enter the forwarding of row information, therefore, the specific implementation of the step 11 of the present embodiment is：
The first terminal equipment sends demand signalling by IMS and gives at least one second terminal equipment.
When implementing, demand signalling is sent to IMS by first terminal equipment first, then will by IMS
Demand signalling is transmitted to second terminal equipment, it is necessary to which explanation, IMS is not to demand signalling progress herein
Any processing, is simply forwarded according to the demand of first terminal equipment.
Alternatively, step 13 described in the present embodiment is specially when realizing：
If the media coding/decoding capability collection that at least one described second terminal equipment is supported and the first terminal
The media coding/decoding capability collection of equipment, which exists, to occur simultaneously, then obtain the first terminal equipment with described at least one
The first media encoding and decoding that second terminal equipment is supported.
It should be noted that media coding/decoding capability collection and the matchmaker of first terminal equipment when second terminal equipment
Body coding/decoding capability collection do not occur simultaneously (i.e. the two without common media encoding and decoding) when, foundation system it is pre-
Establishing, which is put, carries out the audio mixing of the two.
For example：When the audio mixing of 2 equipment of progress, equipment 1 gets the media coding/decoding capability of equipment 2
Collect for { a, b, c }, and the media coding/decoding capability collection of equipment 1 itself is { a, c, d }, equipment 1 and equipment
The common factor of 2 media encoding and decoding is { a, c }, and therefore, optional one is used as equipment 1 and equipment in a and c
2 media encoding and decoding, carry out the audio mixing of the two.
When the audio mixing of 3 equipment of progress, equipment 1 gets equipment 2 respectively and the media of equipment 3 compile solution
Code capability set be { a, b, c } and { a, d, e }, and the media coding/decoding capability collection of equipment 1 itself be a, c,
D }, the common factors of the media encoding and decoding of equipment 1, equipment 2 and equipment 3 is { a }, therefore, and selection a is as setting
Standby 1, the media encoding and decoding of equipment 2 and equipment 3, carry out the audio mixing of three.
As shown in Fig. 2 first terminal equipment (being properly termed as local device) acquisition second terminal equipment (can
To be referred to as opposite equip.) media coding capability set detailed process as：
The INVITE signalings that step 2.1, local device send carrying inquiry head give IMS service device；
The specific example of the INVITE signalings is as follows：
INVITE sip:B@zte-telephone.com SIP/2.0；
MediaSet:query；
Wherein, INVITE sip:B@zte-telephone.com SIP/2.0 represent the specific object of signaling；
MediaSet:Query represents the inquiry head for needing to obtain opposite equip. media coding capability set.
Step 2.2, IMS service device are received after the INVITE signalings on carrying inquiry head of local device, will
The INVITE signalings are transmitted to opposite equip.；
Step 2.3, opposite equip. are received after the INVITE signalings of IMS service device forwarding, to the INVITE
Signaling is parsed, and identifies the media coding capability set inquiry head carried in the INVITE signalings, opposite end
Equipment allows this call setup, therefore is replying in the response signaling of INVITE signalings, passes through signalling header
Carry the media coding/decoding capability collection of itself；
It can be realized in response to signaling is answered by SIP signalings or SDP signalings, when using SIP signalings progress media
When coding/decoding capability collection feeds back, signalling example is as follows：
SIP/2.0 200OK；
MediaSet:audio；A=g711a；A=g729；P=20；
Wherein, SIP/2.0 200OK are expressed as the SIP signalings that response is 200OK；MediaSet:
audio；A=g711a；A=g729；P=20 represents the media coding/decoding capability collection of equipment itself, the equipment support voice,
G711A and G729 encoding and decoding are supported, and packaging time length is 20 milliseconds.
When carrying out media coding/decoding capability collection feedback using SDP signalings, signalling example is as follows：
SIP/2.0 200OK；
V=0；
The 2890844526IN IP4here.com of o=UserA 2890844526；
S=Session SDP；
C=IN IP4pc33.atlanta.com；
T=0 0；
M=audio 49172RTP/AVP 8；
A=ptime:20；
A=sendrecv；
M=audio*RTP/AVP 8 18；
Wherein, SIP/2.0 200OK represent the signaling that response is 200OK；V=0 is used to indicate the SDP's
Protocol version；O=UserA2890844526 2890844526IN IP4here.com are used to indicate the session
Session source；S=Session SDP are used for the session name for indicating the session；C=IN IP4pc33.atlanta.com are used
In the connection data (Connection Information) for indicating the session；T=0 0 be used for carry out the session when
Between describe, indicate initial time and the end time of the session；M=audio 49172RTP/AVP 8 be used for into
The media description of the row session；A=ptime:20 are used to indicate the attribute in media description；A=sendrecv is used for
Indicate the transceiver mode of media description；The media that m=audio*RTP/AVP 8 18 is used for instruction equipment itself are compiled
The Query Result of code capability set, wherein, the media port number of the equipment is *, supports G711A and G729 to compile
Decoding.
It should be noted that when using SDP signalings, the media of Portable device itself are compiled in SDP signalings
Decoding capability collection, by the way that media port is set into *, identifies media coding/decoding capability collection Query Result.
Step 2.4, IMS service device receive the inquiry for carrying media coding/decoding capability collection of opposite equip. transmission
As a result after response signaling, the response signaling is transmitted to local device；
Local device is parsed to the response signaling, identifies the matchmaker of the opposite equip. carried in response signaling
The Query Result of body coding/decoding capability collection, so far local device just obtain the media encoding and decoding energy of opposite equip.
Power collection；It should be noted that above-mentioned local device can be any one party of call, for example can be main
Cry equipment side or called equipment side.
As shown in figure 3, tool when device A, equipment B and equipment C applications above method progress tripartite's audio mixing
Body flow is：
The first INVITE signalings that step 3.11, device A transmission carry inquiry head give IMS service device；
Step 3.12, IMS service device are received after the first INVITE signalings on carrying inquiry head of device A,
First INVITE signalings are transmitted to equipment B；
Step 3.13, equipment B receive IMS service device forwarding the first INVITE signalings after, to this first
INVITE signalings are parsed, and identify that the media coding capability set carried in the first INVITE signalings is looked into
Head is ask, equipment B allows this call setup, therefore in the first response for replying the first INVITE signalings
In signaling, the media coding/decoding capability collection of itself is carried by signalling header；
Step 3.14, IMS service device receive the first response signaling for carrying Query Result of equipment B transmissions
Afterwards, the first response signaling is transmitted to device A, then device A is parsed to the first response signaling,
Identify that the equipment B carried in the first response signaling media coding/decoding capability integrates as G729 and G711A,
And the media coding/decoding capability of device A supports G711A, G711U and G729, therefore device A and equipment
B is conversed from G729；
The 2nd INVITE signalings that step 3.15, device A transmission carry inquiry head give IMS service device；
Step 3.16, IMS service device are received after the 2nd INVITE signalings on carrying inquiry head of device A,
2nd INVITE signalings are transmitted to equipment C；
Step 3.17, equipment C receive IMS service device forwarding the 2nd INVITE signalings after, to this second
INVITE signalings are parsed, and identify that the media coding capability set carried in the 2nd INVITE signalings is looked into
Head is ask, equipment C allows this call setup, therefore in the second response for replying the 2nd INVITE signalings
In signaling, the media coding/decoding capability collection of itself is carried by signalling header；
Step 3.18, IMS service device receive the second response signaling for carrying Query Result of equipment C transmissions
Afterwards, the second response signaling is transmitted to device A, then device A is parsed to the second response signaling,
Identify that the equipment C carried in the second response signaling media coding/decoding capability integrates as G711U and G711A,
And the media coding/decoding capability of device A supports G711A, G711U and G729, therefore device A and equipment
C is conversed from G711U；
Conversated the mistake of negotiation it should be noted that step 3.11 to step 3.14 is device A and equipment B
Journey, step 3.15 to step 3.18 be device A and equipment C conversate negotiation process, it is necessary to explanation
It is that the two processes can be for while the process carried out；And in order to distinguish the signaling sent between distinct device,
INVITE signalings and response signaling are marked with first and second respectively.
After device A obtains equipment B and equipment C media coding/decoding capability collection respectively, device A is from setting
An encoding and decoding G711A, which is chosen, in the common factor of standby B and equipment C media coding/decoding capability collection is used as three's
Audio mixing encoding and decoding, then notify that equipment B and equipment C is consulted again, specific flow is respectively：
Step 3.19, device A are sent to IMS service device carries the encoding and decoding that media re-negotiation is supported jointly
3rd INVITE signalings；
The 3rd INVITE signalings received are sent to equipment B by step 3.20, IMS service device；
Step 3.21, device A are sent to IMS service device carries the encoding and decoding that media re-negotiation is supported jointly
4th INVITE signalings；
The 4th INVITE signalings received are sent to equipment C by step 3.22, IMS service device；
Step 3.23, equipment B receive the 3rd INVITE signalings, because G711A is the media that equipment B is supported
Encoding and decoding, therefore 200OK the 3rd response signaling is replied, confirm to use G711A encoding and decoding；
Step 3.24, IMS service device are received after equipment B the 3rd response signaling, by the 3rd response signaling
It is transmitted to device A；
Device A receives the 3rd response signaling of IMS service device forwarding, and device A and equipment B use G711A
Call；
Step 3.25, equipment C receive the 4th INVITE signalings, because G711A is the media that equipment C is supported
Encoding and decoding, therefore 200OK the 4th response signaling is replied, confirm to use G711A encoding and decoding；
Step 3.26, IMS service device are received after equipment C the 4th response signaling, by the 4th response signaling
It is transmitted to device A；
Device A receives the 4th response signaling of IMS service device forwarding, and device A and equipment C use G711A
Call, is thus just realized between device A, equipment B and equipment C and to be mixed using same coding G711A
Sound.
Such scheme, carry out media coding/decoding negotiation when, terminal device by active inquiry mode obtain with
It carries out the media coding/decoding capability collection of other terminal devices of audio mixing, is then set according to the other terminals obtained
Standby media coding/decoding capability collection carries out the negotiation of audio mixing encoding and decoding, and such a mode improves media encoding and decoding
The success rate of negotiation, in multi-party audio mixing, it is ensured that the audio mixing quality between terminal device；Meanwhile, this hair
In bright, inquiry request is carried by existing signaling, the extra signaling without increasing is not resulted in extra
Resource overhead.
Embodiment two
As shown in figure 4, corresponding to the media coding/decoding negotiation method of embodiment one, the embodiment of the present invention two is carried
For a kind of first terminal equipment, including：
First sending module 41, at least one second terminal equipment, the request are given for sending demand signalling
The solicited message for obtaining the media coding/decoding capability collection that the second terminal equipment is supported is included in signaling；
First receiving module 42, for receiving at least one described second terminal equipment according to the solicited message
The media encoding and decoding supported in the response signaling of transmission, the response signaling comprising the second terminal equipment
Capability set；
Negotiation module 43, for the media encoding and decoding energy supported according at least one described second terminal equipment
Power collection, consults with second terminal equipment at least one described, obtains the first media encoding and decoding；
Processing module 44, for utilizing the first media encoding and decoding and at least one described second terminal equipment
Audio signal carry out stereo process.
It should be noted that first sending module 41 specifically for：
Demand signalling is sent by IP multimedia subsystem IMS and gives at least one second terminal equipment.
It should also be noted that, the response signaling is session initiation protocol signaling or Session Description Protocol signaling.
Alternatively, the negotiation module 43 specifically for：
If the media coding/decoding capability collection that at least one described second terminal equipment is supported and the first terminal
The media coding/decoding capability collection of equipment, which exists, to occur simultaneously, then obtain the first terminal equipment with described at least one
The first media encoding and decoding that second terminal equipment is supported.
It should be noted that the first terminal equipment of the present embodiment is the media coding/decoding negotiation with embodiment one
The corresponding terminal device of method, all implementations of embodiment one can also reach suitable for the embodiment
To with the identical technique effect of embodiment one.
Embodiment three
As shown in figure 5, the media coding/decoding negotiation method of the embodiment of the present invention three, sets applied to second terminal
It is standby, including：
Step 51, the demand signalling that first terminal equipment is sent is received；
Wherein, the request for the media coding/decoding capability collection for obtaining second terminal equipment is included in the demand signalling
Information；
Step 52, according to the solicited message, response signaling is sent to the first terminal equipment；
Wherein, the media coding/decoding capability collection supported in the response signaling comprising the second terminal equipment.
Specifically, the implementation of step 52 is：
Response signaling is sent to the first terminal equipment by IP multimedia subsystem IMS.
Alternatively, the response signaling is session initiation protocol signaling or Session Description Protocol signaling.
It should be noted that in above-described embodiment one, the description of all about second terminal equipment is applicable
In the embodiment using the media coding/decoding negotiation method of second terminal equipment, it can also reach same
Technique effect.
Example IV
As shown in fig. 6, corresponding to the media coding/decoding negotiation method of embodiment three, the embodiment of the present invention four is carried
For a kind of second terminal equipment, including：
Second receiving module 61, the demand signalling for receiving the transmission of first terminal equipment, the demand signalling
In comprising obtain second terminal equipment media coding/decoding capability collection solicited message；
Second sending module 62, for according to the solicited message, sending response signaling to the first terminal
The media coding/decoding capability collection supported in equipment, the response signaling comprising the second terminal equipment.
Wherein, the second sending module 62 specifically for：
Response signaling is sent to the first terminal equipment by IP multimedia subsystem IMS.
Specifically, the response signaling is session initiation protocol signaling or Session Description Protocol signaling.
It should be noted that the second terminal equipment of the present embodiment is the media coding/decoding negotiation with embodiment three
The corresponding terminal device of method, all implementations of embodiment three can also reach suitable for the embodiment
To with the identical technique effect of embodiment three.
It should be noted that first terminal equipment described in the present invention and the institute of second terminal equipment are functional
It can be integrated in same terminal device.
Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary people of the art
For member, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, these
Improvements and modifications are also within the scope of the present invention.
Claims (11)
1. a kind of media coding/decoding negotiation method, applied to first terminal equipment, it is characterised in that including：
First terminal equipment sends demand signalling and gives bag at least one second terminal equipment, the demand signalling
Containing the solicited message for obtaining the media coding/decoding capability collection that the second terminal equipment is supported；
The first terminal equipment receives at least one described second terminal equipment and sent according to the solicited message
Response signaling, the media coding/decoding capability supported comprising the second terminal equipment in the response signaling
Collection；
The media coding/decoding capability collection supported according at least one described second terminal equipment, with least one
The second terminal equipment is consulted, and obtains the first media encoding and decoding；
Mixed using the audio signal of the first media encoding and decoding and at least one the second terminal equipment
Sound processing.
2. media coding/decoding negotiation method according to claim 1, it is characterised in that described first eventually
End equipment sends the step of demand signalling is at least one second terminal equipment：
The first terminal equipment by IP multimedia subsystem IMS send demand signalling give at least one second
Terminal device.
3. media coding/decoding negotiation method according to claim 1 or 2, it is characterised in that described to answer
Signaling is answered for session initiation protocol signaling or Session Description Protocol signaling.
4. media coding/decoding negotiation method according to claim 1, it is characterised in that the basis is extremely
The media coding/decoding capability collection that few second terminal equipment is supported, with least one described second eventually
End equipment is consulted, and the step of obtaining the first media encoding and decoding is specially：
If the media coding/decoding capability collection that at least one described second terminal equipment is supported and the first terminal
The media coding/decoding capability collection of equipment, which exists, to occur simultaneously, then obtain the first terminal equipment with described at least one
The first media encoding and decoding that second terminal equipment is supported.
5. a kind of first terminal equipment, it is characterised in that including：
First sending module, at least one second terminal equipment, the request letter are given for sending demand signalling
The solicited message for obtaining the media coding/decoding capability collection that the second terminal equipment is supported is included in order；
First receiving module, sends out for receiving at least one described second terminal equipment according to the solicited message
The media encoding and decoding energy supported in the response signaling sent, the response signaling comprising the second terminal equipment
Power collection；
Negotiation module, for the media coding/decoding capability supported according at least one described second terminal equipment
Collection, consults with second terminal equipment at least one described, obtains the first media encoding and decoding；
Processing module, for utilizing the first media encoding and decoding and at least one the second terminal equipment
Audio signal carries out stereo process.
6. first terminal equipment according to claim 5, it is characterised in that first sending module
Specifically for：
Demand signalling is sent by IP multimedia subsystem IMS and gives at least one second terminal equipment.
7. first terminal equipment according to claim 5, it is characterised in that the negotiation module is specific
For：
If the media coding/decoding capability collection that at least one described second terminal equipment is supported and the first terminal
The media coding/decoding capability collection of equipment, which exists, to occur simultaneously, then obtain the first terminal equipment with described at least one
The first media encoding and decoding that second terminal equipment is supported.
8. a kind of media coding/decoding negotiation method, applied to second terminal equipment, it is characterised in that including：
Set in the demand signalling that reception first terminal equipment is sent, the demand signalling comprising acquisition second terminal
The solicited message of standby media coding/decoding capability collection；
According to the solicited message, response signaling is sent to the first terminal equipment, in the response signaling
The media coding/decoding capability collection supported comprising the second terminal equipment.
9. media coding/decoding negotiation method according to claim 8, it is characterised in that described according to institute
Solicited message is stated, sending the step of response signaling is to the first terminal equipment is specially：
Response signaling is sent to the first terminal equipment by IP multimedia subsystem IMS.
10. media coding/decoding negotiation method according to claim 8 or claim 9, it is characterised in that described
Response signaling is session initiation protocol signaling or Session Description Protocol signaling.
11. a kind of second terminal equipment, it is characterised in that including：
In second receiving module, the demand signalling for receiving the transmission of first terminal equipment, the demand signalling
Include the solicited message for the media coding/decoding capability collection for obtaining second terminal equipment；
Second sending module, sets for according to the solicited message, sending response signaling to the first terminal
Media coding/decoding capability collection that is standby, being supported in the response signaling comprising the second terminal equipment.
Priority Applications (2)
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| CN201610140429.XA CN107181723A (en) | 2016-03-11 | 2016-03-11 | A kind of media coding/decoding negotiation method and terminal device |
| PCT/CN2016/090708 WO2017152566A1 (en) | 2016-03-11 | 2016-07-20 | Method for negotiating media coding/decoding, and terminal device |
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| CN201610140429.XA CN107181723A (en) | 2016-03-11 | 2016-03-11 | A kind of media coding/decoding negotiation method and terminal device |
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