CN110557593A - Media transmission method and H323-SIP gateway - Google Patents
Media transmission method and H323-SIP gateway Download PDFInfo
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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
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1106—Call signalling protocols; H.323 and related
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
- H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
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- H04N7/15—Conference systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/08—Upper layer protocols
- H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/16—Gateway arrangements
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Abstract
The embodiment of the invention discloses a media transmission method and an H323-SIP gateway, wherein the media transmission method comprises the following steps: the method comprises the steps that after receiving a call access request of a calling terminal, an H323-SIP gateway sends an empty capacity call message to a called terminal, wherein the empty capacity call message is used for requesting capacity set information of the called terminal, and the call access request carries the capacity set information of the calling terminal; after the H323-SIP gateway receives the capability set information sent by the called terminal, when the calling terminal, the called terminal and the H323-SIP gateway are determined to have a first common capability set, the received media code stream is directly forwarded to the calling terminal or the called terminal. Therefore, the H323-SIP gateway does not use a transcoding mode, but adopts a code stream automatic forwarding mode, thereby reducing the requirements on the performance of system hardware and also reducing the commercial cost of H323-SIP gateway products.
Description
Technical Field
The embodiment of the invention relates to the field of media transmission, but is not limited to a media transmission method and an H323-SIP gateway.
background
Currently, H323 terminals call SIP terminals through H323-SIP gateways or join SIP video conferences, and the trend is mature. At present, in the process of media transmission between an H323 terminal and an SIP terminal, an H323-SIP gateway still uses a transcoding technology, that is, a media format of one party is converted into a media format of the other party for transmission. In order to meet the transcoding requirement, relatively high requirements are imposed on hardware resources such as an inner core, a memory and the like of the H323-SIP gateway. Thus, the requirement on the hardware performance of the H323-SIP gateway is too high, and the commercial cost of the H323-SIP product is increased.
Disclosure of Invention
In view of this, an embodiment of the present invention provides a media transmission method, where the method includes:
The method comprises the steps that after receiving a call access request of a calling terminal, an H323-SIP gateway sends an empty capacity call message to a called terminal, wherein the empty capacity call message is used for requesting capacity set information of the called terminal, and the call access request carries the capacity set information of the calling terminal;
after the H323-SIP gateway receives the capability set information sent by the called terminal, when the calling terminal, the called terminal and the H323-SIP gateway are determined to have a first common capability set, the received media code stream is directly forwarded to the calling terminal or the called terminal.
the embodiment of the invention also provides an H323-SIP gateway, which comprises: the system comprises a protocol stack module, a main control module and a media module which are connected with each other;
The protocol stack module is used for sending an empty capacity calling message to a called terminal after receiving a calling access request of a calling terminal, wherein the empty capacity calling message is used for requesting capacity set information of the called terminal, and the calling access request carries the capacity set information of the calling terminal;
The main control module is configured to, after receiving the capability set information sent by the called terminal, notify the media module to directly forward the received media code stream to the calling terminal or the called terminal when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway have the first common capability set.
the embodiment of the invention also provides an H323-SIP gateway, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to implement any one of the media transmission methods.
an embodiment of the present invention further provides a computer-readable storage medium, where an information processing program is stored on the computer-readable storage medium, and when the information processing program is executed by a processor, the information processing program implements the steps of any of the media transmission methods described above.
Compared with the related art, the embodiment of the invention discloses a media transmission method and an H323-SIP gateway, wherein the media transmission method comprises the following steps: the method comprises the steps that after receiving a call access request of a calling terminal, an H323-SIP gateway sends an empty capacity call message to a called terminal, wherein the empty capacity call message is used for requesting capacity set information of the called terminal, and the call access request carries the capacity set information of the calling terminal; after the H323-SIP gateway receives the capability set information sent by the called terminal, when the calling terminal, the called terminal and the H323-SIP gateway are determined to have a first common capability set, the received media code stream is directly forwarded to the calling terminal or the called terminal. Therefore, the H323-SIP gateway does not use a transcoding mode, but adopts a code stream automatic forwarding mode, thereby reducing the requirements on the performance of system hardware and also reducing the commercial cost of H323-SIP gateway products.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
fig. 1 is a schematic flowchart of a media transmission method according to an embodiment of the present invention;
Fig. 2 is a schematic networking diagram of a media transmission system according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a media transmission method according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an H323-SIP gateway according to a third embodiment of the present invention;
Fig. 5 is a schematic flowchart of a media transmission method executed by an H323-SIP gateway according to the third embodiment of the present invention;
Fig. 6 is a schematic flowchart of another media transmission method executed by the H323-SIP gateway according to the third embodiment of the present invention;
fig. 7 is a schematic flow chart of a media resource management method provided by an H323-SIP gateway according to the third embodiment of the present invention.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
H.323 is a standard related to multimedia communication established by ITU-T (international Telecommunication union Telecommunication Standardization Sector), and SIP (Session initiation protocol) is an open IP telephony signaling protocol proposed by IETF (Internet Engineering Task Force). The H.323 protocol and the SIP protocol can adopt a real-time transport protocol (RTP) to transmit real-time audio and video transmission, the communication complexity between the two protocols is not high, the intercommunication between the two protocols can be solved through the arranged H323-SIP gateway, and the functions of translation and conversion of signaling messages, media transmission and the like are completed. For example, in the current video conference system, the media intercommunication between the h.323 terminal and the SIP terminal can be realized through the H323-SIP gateway. However, at present, the H323-SIP gateway performs media transmission by a transcoding technique, that is, converts the media format of one party into the media format of the other party and then transmits the converted media. In order to meet the transcoding requirement, relatively high requirements are imposed on hardware resources such as an inner core, a memory and the like of the H323-SIP gateway. Thus, the requirement on the hardware performance of the H323-SIP gateway is too high, and the commercial cost of the H323-SIP product is increased.
therefore, the embodiment of the invention provides a media transmission method and an H323-SIP gateway, wherein the H323-SIP gateway sends an empty capacity calling message to a called terminal after receiving a calling access request of a calling terminal, the empty capacity calling message is used for requesting capacity set information of the called terminal, and the calling access request carries the capacity set information of the calling terminal; after the H323-SIP gateway receives the capability set information sent by the called terminal, when the calling terminal, the called terminal and the H323-SIP gateway are determined to have a first common capability set, the received media code stream is directly forwarded to the calling terminal or the called terminal. Therefore, in the embodiment of the invention, the H323-SIP gateway does not use a transcoding mode any more, but adopts a code stream automatic forwarding mode, thereby reducing the requirements on the performance of system hardware and also reducing the commercial cost of H323-SIP gateway products.
The technical solution of the present application is explained in detail by the following specific examples.
Example one
Fig. 1 is a schematic flow chart of a media transmission method according to an embodiment of the present invention, as shown in fig. 1, the method includes:
Step 101, after receiving a call access request of a calling terminal, an H323-SIP gateway sends an empty capacity call message to a called terminal, wherein the empty capacity call message is used for requesting capacity set information of the called terminal, and the call access request carries the capacity set information of the calling terminal;
and 102, after receiving the capability set information sent by the called terminal, the H323-SIP gateway directly forwards the received media code stream to the calling terminal or the called terminal when determining that the calling terminal, the called terminal and the H323-SIP gateway have a first common capability set.
wherein, the method also comprises:
and when the calling terminal, the called terminal and the H323-SIP gateway are determined not to have the first common capability set, transcoding the received media code stream and then sending the transcoded media code stream to the calling terminal or the called terminal.
Wherein, after determining that the calling terminal, the called terminal and the H323-SIP gateway have a common capability set, the method further comprises:
The H323-SIP gateway sends a first coding and decoding message to the calling terminal and the called terminal, wherein the first coding and decoding message is used for informing the calling terminal and the called terminal to use the same first dynamic load type, encryption key and encryption algorithm for coding and decoding, and the first dynamic load type is used for indicating the preferred single capability from the first common capability set.
wherein, the method also comprises:
upon determining that the calling terminal, the called terminal and the H323-SIP gateway do not have a first common set of capabilities,
If the H323-SIP gateway and the calling terminal have a second common capability set, the H323-SIP gateway sends a second coding message to the calling terminal, the second coding message is used for informing a second dynamic load type used by the calling terminal, and the second dynamic load type is used for indicating a single capability preferred from the second common capability set;
If the H323-SIP gateway and the called terminal have a third common capability set, the H323-SIP gateway sends a third codec message to the called terminal, the third codec message being used to inform a third dynamic load type used by the called terminal, the third dynamic load type being used to indicate a single capability preferred from the third common capability set.
the transcoding the received media code stream and then sending the transcoded media code stream to the calling terminal or the called terminal includes:
after receiving the first media code stream from the calling terminal, the H323-SIP gateway decodes the first media code stream according to the second dynamic load type, encodes the decoded first media code stream again according to the three dynamic load types and then sends the encoded first media code stream to the called terminal;
And/or after receiving a second media code stream from the called terminal, the H323-SIP gateway decodes the second media code stream according to the third dynamic load type, codes the decoded second media code stream again according to the second dynamic load type, and sends the second media code stream to the calling terminal.
Before the H323-SIP gateway sends a first coding and decoding message to the calling terminal and the called terminal, the method comprises the following steps:
the H323-SIP gateway calculates the total number of available media resources, and selects single capability from the first common capability set according to the total number of the media resources.
Before the H323-SIP gateway sends a second coding and decoding message to the calling terminal, the method comprises the following steps:
The H323-SIP gateway calculates the total number of available media resources, and selects single capability from the second common capability set according to the total number of the media resources;
Before the H323-SIP gateway sends a third coding and decoding message to the called terminal, the method comprises the following steps:
The H323-SIP gateway calculates the total number of available media resources, and selects single capability from the third common capability set according to the total number of media resources.
according to the technical scheme provided by the first embodiment of the invention, after receiving a call access request of a calling terminal, an H323-SIP gateway sends an empty capacity call message to a called terminal, wherein the empty capacity call message is used for requesting capacity set information of the called terminal, and the call access request carries the capacity set information of the calling terminal; after the H323-SIP gateway receives the capability set information sent by the called terminal, when the calling terminal, the called terminal and the H323-SIP gateway are determined to have a first common capability set, the received media code stream is directly forwarded to the calling terminal or the called terminal. Therefore, the H323-SIP gateway realizes an automatic media forwarding mode, avoids a transcoding mode as much as possible, and reduces media energy consumption, thereby reducing the requirements of products on hardware performance and reducing the deployment cost of gateway products.
The technical solution provided by the first embodiment is described in detail by a specific embodiment.
Example two
fig. 2 is a schematic networking diagram of a media transmission system according to a second embodiment of the present invention, and fig. 3 is a schematic flow diagram of a media transmission method according to the second embodiment of the present invention.
as shown in fig. 2, the media transmission system includes: the video conference system comprises an H323 terminal, an SIP terminal and an H323-SIP gateway, wherein the H323 terminal and the SIP terminal carry out video conference interaction through the H323-SIP gateway. The media capability of the H323 terminal and the media capability of the SIP terminal are the same in many scenes, and in the scenes, the H323-SIP gateway uses a media automatic forwarding mode, so that the deployment cost of the H323-SIP is reduced.
as shown in fig. 3, the media transmission method is applied to an H323-SIP gateway, and includes:
Step 301, calculating and storing the total number of media resources;
the H323-SIP gateway may convert the CPU master frequency, the CPU core number, and the memory of its own host into media resources, for example, may convert the CPU core number and the memory into the audio/video forwarding path number and the audio/video transcoding path number, for example, the CPU of the host has 8 cores, one CPU core may forward 5000 paths of G711A code streams or transcode 200 paths of G711A code streams, and then 1, G711A forward 5000 × 8 paths of a common agent; 2. the number of paths of the G711A transcoding common agent is 200 x 8 paths; and the H323-SIP gateway saves the converted total number of resources, namely the corresponding relation between the audio and video format and the number of forwarding paths and the number of transcoding paths.
step 302, judging whether a call access request of a calling terminal is received, if so, executing the step downwards, otherwise, continuing to execute the step 302;
step 303, analyzing the information of the calling terminal and the called terminal, judging whether the calling terminal and the called terminal are accessed by the same protocol, if so, ending the process; otherwise, continuing to execute downwards;
the calling terminal and the called terminal are respectively an H323 terminal or an SIP terminal, but the calling terminal and the called terminal are respectively accessed to the H323-SIP gateway through different protocols, namely, the H323 protocol or the SIP protocol, that is, the following processes are continued only when the calling terminal and the called terminal are respectively accessed to the H323-SIP gateway through different protocols. In addition, the call access request sent by the calling terminal carries the capability set information of the calling terminal;
step 304, sending a null capability calling message to the called terminal;
wherein the empty capability call message is used for requesting capability set information of the called terminal.
Step 305, receiving a response message of the called terminal;
wherein, the response message carries the capability set information of the called terminal.
step 306, judging the calling terminal, the called terminal and the capability sets of the calling terminal, the called terminal and the H323-SIP gateway, and determining whether the calling terminal, the called terminal and the H323-SIP gateway have a first common capability set;
the capability set refers to an audio/video format supported by a calling terminal, a called terminal or an H323-SIP gateway, for example, the capability set of the H323-SIP gateway is G711A, G711U, H264 and H264HP, the capability set of the calling terminal H323 terminal is G711A and H264 capabilities, and the capability set of the called terminal SIP terminal is G711A and H264 capabilities.
Step 307, when it is determined that the calling terminal, the called terminal and the H323-SIP gateway have a first common capability set, preferably selecting a single capability from the first common capability set; wherein, if the single capability is not preferred, jumping to step 310;
as in the above example in step 306, the intersection of the audio and video capabilities of the H323-SIP gateway, the calling terminal, and the called terminal is G711A and H264, so that it can be determined that the calling terminal, the called terminal, and the H323-SIP gateway have a first common capability set, where the first common capability set is G711A and H264. However, if the capabilities of the SIP terminals are G711U and H264HP, the audio and video capabilities of the H323-SIP gateway, the calling terminal and the called terminal are intersected, and the intersection is not established, so that it can be determined that the calling terminal, the called terminal and the H323-SIP gateway do not have the first common capability set.
When one or more groups of audio/video codec formats exist in the first common capability set, whether enough media resources support each single capability in the first common capability set is judged according to the total number of the media resources stored in step 301, and the single capability capable of being supported is selected as the preferred single capability. If multiple groups of audio/video formats exist in the first common capability set and are supported by enough available media resources, the preferred single capability can be determined according to factors such as audio/video quality requirements and the like, which is the prior art and is not described herein again.
Step 308, sending the message encoded and decoded by using the same dynamic load type and key to the calling terminal and the called terminal, and requiring the calling terminal and the called terminal to update the encoder and the decoder;
the first codec message is used for informing the calling terminal and the called terminal to use the same first dynamic load type, encryption key and encryption algorithm for encoding and decoding, and the first dynamic load type is used for indicating the single capability preferred from the first common capability set.
309, directly forwarding the first media code stream to the called terminal without transcoding after receiving the first media code stream from the calling terminal; after receiving a second media code stream from the called terminal, the second media code stream is directly forwarded to the calling terminal without transcoding; the flow is finished;
In the related technology, after receiving a first media code stream from a calling terminal, transcoding (decoding and recoding) the first media code stream and then sending the first media code stream to a called terminal; and after receiving the second media code stream from the called terminal, transcoding and then sending the second media code stream to the calling terminal. However, in the embodiment of the invention, after the media code stream is received, transcoding is not performed, and the media code stream is directly forwarded.
step 310, judging the capability sets of the calling terminal and the H323-SIP gateway, and determining whether the calling terminal and the H323-SIP gateway have a second common capability set; judging the capability sets of the called terminal and the H323-SIP gateway, and determining whether the called terminal and the H323-SIP gateway have a third common capability set;
for example, the capability sets of the H323-SIP gateway are G711A, G711U, H264 and H264HP, the capability set of the calling terminal H323 terminal is G711A and H264 capability, and the capability set of the called terminal SIP terminal is G711U and H264HP, at this time, the calling terminal, the called terminal and the H323-SIP gateway do not have the first common capability set.
311, when the calling terminal and the H323-SIP gateway have a second common capability set, selecting a single capability from the second common capability set, and when the called terminal and the H323-SIP gateway have a third common capability set, selecting a single capability from the third common capability set; if the single capability is not preferred, hanging up the call and ending the process;
wherein, for example, in step 310, the second common capability set is G711A and H264, and the third common capability set is G711U and H264 HP.
When one or more groups of audio/video codec formats exist in the second common capability set or the third common capability set, whether enough media resources support each single capability in the second common capability set or the third common capability set is judged according to the total number of the media resources saved in step 301, and the supportable single capability is selected as the preferred single capability. If multiple groups of audio/video formats exist in the first common capability set and are supported by enough media resources, the preferred single capability can be determined according to factors such as audio/video quality requirements and the like, which is the prior art and is not described herein again.
step 312, if the H323-SIP gateway and the calling terminal have a second common capability set, sending a second codec message to the calling terminal; if the H323-SIP gateway and the called terminal have a third common capability set, sending a third coding and decoding message to the called terminal;
Wherein the second codec message is used to inform a second dynamic load type used by the calling terminal, the second dynamic load type being used to indicate a single capability preferred from the second common capability set; the third codec message is used to inform the terminal of a third dynamic load type used to indicate a single capability preferred from the third common capability set.
313, after receiving the first media code stream from the calling terminal, decoding the first media code stream according to the second dynamic load type, coding the decoded first media code stream again according to the three dynamic load types, and sending the coded first media code stream to the called terminal; and/or after receiving a second media code stream from the called terminal, decoding the second media code stream according to the third dynamic load type, coding the decoded second media code stream again according to the second dynamic load type, and sending the coded second media code stream to the calling terminal.
according to the technical scheme provided by the embodiment of the invention, the H323-SIP gateway realizes an automatic media forwarding mode, avoids a transcoding mode as much as possible, and reduces media energy consumption, so that the requirements of products on hardware performance are reduced, reasonable distribution of media resources of the H323-SIP gateway is realized to the maximum extent, optimal use of the media resources is ensured, image quality and tone quality are improved, and the deployment cost of the products is reduced.
EXAMPLE III
fig. 4 is a schematic structural diagram of an H323-SIP gateway according to a third embodiment of the present invention, and as shown in fig. 4, the H323-SIP gateway includes: the system comprises a protocol stack module, a main control module and a media module which are connected with each other;
The protocol stack module is used for sending an empty capacity calling message to a called terminal after receiving a calling access request of a calling terminal, wherein the empty capacity calling message is used for requesting capacity set information of the called terminal, and the calling access request carries the capacity set information of the calling terminal;
The main control module is configured to, after receiving the capability set information sent by the called terminal, notify the media module to directly forward the received media code stream to the calling terminal or the called terminal when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway have the first common capability set.
The main control module is further configured to notify the media module to transcode the received media code stream and send the transcoded media code stream to the calling terminal or the called terminal when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway do not have the first common capability set.
the main control module is further configured to notify the protocol stack module to send a first codec message to the calling terminal and the called terminal after it is determined that the calling terminal, the called terminal, and the H323-SIP gateway have a common capability set, where the first codec message is used to notify the calling terminal and the called terminal to use a same first dynamic load type, encryption key, and encryption algorithm for encoding and decoding, and the first dynamic load type is used to indicate a single capability preferred from the first common capability set.
the main control module is further configured to, when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway do not have the first common capability set, notify the protocol stack module to send a second codec message to the calling terminal if the H323-SIP gateway and the calling terminal have a second common capability set, where the second codec message is used to notify a second dynamic load type used by the calling terminal, and the second dynamic load type is used to indicate a single capability preferred from the second common capability set; if the H323-SIP gateway and the called terminal have a third common capability set, the protocol stack module is informed to send a third coding and decoding message to the called terminal, the third coding and decoding message is used for informing a third dynamic load type used by the called terminal, and the third dynamic load type is used for indicating a single capability preferred from the third common capability set.
The media module is used for decoding the first media code stream according to the second dynamic load type after receiving the first media code stream from the calling terminal, coding the decoded first media code stream again according to the three dynamic load types and then sending the coded first media code stream to the called terminal;
And/or the media module is further configured to decode a second media code stream according to the third dynamic load type after receiving the second media code stream from the called terminal, and encode the decoded second media code stream again according to the second dynamic load type and send the encoded second media code stream to the calling terminal.
The media module is configured to calculate and store a total number of available media resources before the protocol stack module sends the first codec message to the calling terminal and the called terminal;
The main control module is further configured to select a single capability from the first common capability set according to the total number of the media resources.
The media module is configured to calculate and store a total number of available media resources before the protocol stack module sends the second codec message to the calling terminal;
The main control module is further configured to select a single capability from the second common capability set according to the total number of the media resources;
the media module is further configured to calculate and store the total number of available media resources before the protocol stack module sends the third codec message to the called terminal;
the main control module is further configured to select a single capability from the third common capability set according to the total number of the media resources.
According to the technical scheme provided by the third embodiment of the invention, the H323-SIP gateway realizes an automatic media forwarding mode, avoids a transcoding mode as much as possible, and reduces media energy consumption, thereby reducing the requirements of products on hardware performance and reducing the deployment cost of gateway products.
the technical solution provided by the third embodiment is explained in detail by two specific embodiments.
example four
Fig. 5 is a schematic flow chart of a media transmission method executed by an H323-SIP gateway according to the third embodiment of the present invention. The H323-SIP gateway comprises: the system comprises a protocol stack module, a main control module and a media module which are connected with each other; the protocol module is a unit module for accessing the H323 terminal and the SIP terminal and can process H323 signaling and SIP signaling; the main control module controls the mutual signaling conversion of the H323 protocol and the SIP protocol, the media strategy and the management of media resources; the media module calculates the total number of media resources, receives the media code stream, encodes and decodes the media code stream and forwards the media code stream.
As shown in fig. 5, the media transmission method includes:
Step 501, the media module reports to the main control module according to the CPU master frequency, the CPU core number and the memory of the host machine converted into media resources (i.e. the number of audio/video forwarding paths and the number of audio/video transcoding paths).
step 502, the main control module records the total number of media resources (including the total number of forwarding paths of the accessed audio and video and the total number of transcoding paths of the audio and video);
step 503, the protocol stack module judges whether the call of the calling terminal is received, if so, the execution is performed downwards, otherwise, the execution continues to S503;
Step 504, the protocol stack module analyzes the information of the calling terminal and the called terminal and reports the information to the main control module;
step S505, the main control module judges whether the calling terminal and the called terminal are accessed by the same protocol, if so, the main control module jumps to S515 to execute, and then the process is ended;
step 506, the main control module sends an empty capability calling message to the protocol stack module, and the protocol stack module forwards the empty capability calling message to the called terminal;
Step 507, after receiving the capability set reply of the opposite side, the protocol stack module reports to the main control module, the main control module performs common capability calculation on the local capability sets of the calling terminal, the called terminal and the gateway, and the main control module prefers single capability from the common capability set (the first common capability set), if the single capability is not preferred, the protocol stack module jumps to S512 to execute;
step 508, the master control module issues a message to the protocol stack module, and requires the calling terminal and the called terminal to use the same dynamic load type and key for encoding and decoding;
509, the protocol stack module sends a message encoded and decoded by using the same dynamic load type and key to the calling terminal and the called terminal through a private signaling message, and requires the calling terminal and the called terminal to update the encoder and the decoder;
step 510, the main control module issues a message to the media module, and the media module is required to directly forward the media code streams of the calling terminal and the called terminal;
step 511, the media module receives the code stream, does not need to decode and re-encode, but directly forwards the code stream to the opposite terminal, and the process is ended;
Step 512, the main control module respectively calculates the common capabilities (a second common capability set and a third common capability set) of the calling terminal and the local capabilities and the called terminal and the local capabilities, and if the common capabilities cannot be calculated, the main control module jumps to the process S515 to execute; if the common capability can be calculated, the main control module prefers single capability from the common capability set, and if the single capability is not preferred, the main control module jumps to S515 for execution;
step 513, the main control module issues a message to the media module, and requests the media module to decode the received code stream, then recodes the code stream, and forwards the code stream to the opposite terminal;
step 514, after receiving the terminal code stream, the media module decodes, re-encodes, forwards to the opposite end, and ends the process;
step 515, hang up the call, and end the process.
According to the technical scheme provided by the fourth embodiment of the invention, the H323-SIP gateway realizes an automatic media forwarding mode, avoids a transcoding mode as much as possible, and reduces media energy consumption, so that the requirements of products on hardware performance are reduced, reasonable distribution of media resources of the H323-SIP gateway is realized to the maximum extent, optimal use of the media resources is ensured, image quality and tone quality are improved, and the deployment cost of the products is reduced.
EXAMPLE five
fig. 6 is a schematic flow chart of another media transmission method executed by the H323-SIP gateway according to the third embodiment of the present invention. The H323-SIP gateway comprises: the system comprises a protocol stack module, a main control module and a media module which are connected with each other; the protocol module is a unit module for accessing the H323 terminal and the SIP terminal and can process H323 signaling and SIP signaling; the main control module controls the mutual signaling conversion of the H323 protocol and the SIP protocol, the media strategy and the management of media resources; the media module calculates the total number of media resources, receives the media code stream, encodes and decodes the media code stream and forwards the media code stream.
As shown in fig. 6, the media transmission method includes:
601, the main control module records the total number of transcoding resources and the total number of forwarding resources of the audio and video reported by the media module, then judges whether call access is received, if the call access is received, the next step is executed, otherwise, the step 601 is continued;
step 602, a main control module collects audio and video capabilities of a calling terminal and a called terminal;
step 603, the main control module calculates the intersection of the local audio and video capabilities of the calling terminal, the called terminal and the gateway, then judges whether an intersection set exists or not, and jumps to step 308 if the intersection set exists;
Step 604, the main control module performs intersection calculation on the calling terminal and the local capability, and judges whether there is intersection, if not, the main control module jumps to step 611;
605, the main control module performs the preferred audio and video capability on the intersection set, and if the media module is required to receive the code stream, the code is sent to the calling terminal;
Step 606, the main control module performs intersection calculation on the local capabilities of the called terminal and the gateway, and judges whether there is intersection, if not, the main control module jumps to step 611;
Step 607, the main control module performs the preferred audio and video capability to the intersection set, and if the media module is required to receive the code stream, the code sends the code stream to the called terminal, and the process is ended;
Step 608, the master control module performs optimal audio and video capability on the intersection set;
step 609, the main control module requires the calling terminal box and the called terminal to use the same load type, encryption key and encryption algorithm for encoding and decoding;
step 610, the main control module requires the media module to directly forward the code streams of the calling terminal and the called terminal, and the process is ended;
step 611, the main control module requests the protocol module to reject the call, and the process is ended;
According to the technical scheme provided by the fifth embodiment of the invention, the H323-SIP gateway realizes an automatic media forwarding mode, avoids a transcoding mode as much as possible, and reduces media energy consumption, thereby reducing the requirements of products on hardware performance and reducing the deployment cost of gateway products.
EXAMPLE six
How the H323-SIP gateway performs media resource management is described in detail below by using a specific embodiment six to implement calculation and saving of the total number of available media resources.
Fig. 7 is a schematic flow chart of a media resource management method provided by an H323-SIP gateway according to the third embodiment of the present invention. The H323-SIP gateway comprises: the system comprises a protocol stack module, a main control module and a media module which are connected with each other; the protocol module is a unit module for accessing the H323 terminal and the SIP terminal and can process H323 signaling and SIP signaling; the main control module controls the mutual signaling conversion of the H323 protocol and the SIP protocol, the media strategy and the management of media resources; the media module calculates the total number of media resources, receives the media code stream, encodes and decodes the media code stream and forwards the media code stream.
As shown in fig. 7, the method includes:
step 701, the media module calculates the total number of media resources transcoded and forwarded by each audio/video capability according to the number of cores of the CPU and the memory, and reports the total number of the media resources transcoded and forwarded to the main control module;
step 702, whether the media module receives the request of the main control module to directly forward the code stream, if not, the step 704 is skipped;
step 703, recalculating the total resource number of the media direct forwarding code stream, reporting to the main control module to synchronously forward the total available media resource number of the code stream, and ending the process;
step 704, the media module judges whether the main control module requests transcoding is received, if not, the step 702 is skipped;
Step 705, recalculating the total number of resources of the media transcoding, reporting to the main control module to synchronously forward the total number of media resources of the code stream, and ending the process.
the media resource calculation method is specifically exemplified as follows:
such as: the CPU of the host has 8 cores, and one CPU core can forward 5000 paths of G711A code streams or 200 paths of G711A code streams, so that
the number of paths for forwarding a common agent by the G711A is 5000 x 8 paths;
the number of paths of the G711A transcoding common agent is 200 x 8 paths;
The media module receives the transcoding of the specific capability G711A required by the main control module, (200 × 8-1) reports to the main control module, and the main control module updates the total number of resources and calculates the total number of resources in the code stream forwarding mode.
According to the technical scheme provided by the sixth embodiment of the invention, the H323-SIP gateway realizes the automatic media forwarding mode by calculating and storing the available media resources for directly forwarding the code stream or transcoding, avoids the transcoding mode as much as possible, and reduces the media energy consumption, thereby reducing the requirements of the product on the hardware performance and the deployment cost of the gateway product.
The embodiment of the invention also provides an H323-SIP gateway, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to implement any one of the media transmission methods.
an embodiment of the present invention further provides a computer-readable storage medium, where an information processing program is stored on the computer-readable storage medium, and when the information processing program is executed by a processor, the information processing program implements the steps of any of the media transmission methods described above.
it will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (16)
1. A method of media transmission, comprising:
the method comprises the steps that after receiving a call access request of a calling terminal, an H323-SIP gateway sends an empty capacity call message to a called terminal, wherein the empty capacity call message is used for requesting capacity set information of the called terminal, and the call access request carries the capacity set information of the calling terminal;
after the H323-SIP gateway receives the capability set information sent by the called terminal, when the calling terminal, the called terminal and the H323-SIP gateway are determined to have a first common capability set, the received media code stream is directly forwarded to the calling terminal or the called terminal.
2. The method of claim 2, further comprising:
And when the calling terminal, the called terminal and the H323-SIP gateway are determined not to have the first common capability set, transcoding the received media code stream and then sending the transcoded media code stream to the calling terminal or the called terminal.
3. the method of claim 1, wherein after determining that the calling terminal, the called terminal, and the H323-SIP gateway have a common capability set, the method further comprises:
the H323-SIP gateway sends a first coding and decoding message to the calling terminal and the called terminal, wherein the first coding and decoding message is used for informing the calling terminal and the called terminal to use the same first dynamic load type, encryption key and encryption algorithm for coding and decoding, and the first dynamic load type is used for indicating the preferred single capability from the first common capability set.
4. the method of claim 2, further comprising:
upon determining that the calling terminal, the called terminal and the H323-SIP gateway do not have a first common set of capabilities,
If the H323-SIP gateway and the calling terminal have a second common capability set, the H323-SIP gateway sends a second coding message to the calling terminal, the second coding message is used for informing a second dynamic load type used by the calling terminal, and the second dynamic load type is used for indicating a single capability preferred from the second common capability set;
If the H323-SIP gateway and the called terminal have a third common capability set, the H323-SIP gateway sends a third codec message to the called terminal, the third codec message being used to inform a third dynamic load type used by the called terminal, the third dynamic load type being used to indicate a single capability preferred from the third common capability set.
5. the method of claim 4, wherein transcoding the received media code stream and sending the transcoded media code stream to the calling terminal or the called terminal comprises:
After receiving the first media code stream from the calling terminal, the H323-SIP gateway decodes the first media code stream according to the second dynamic load type, encodes the decoded first media code stream again according to the three dynamic load types and then sends the encoded first media code stream to the called terminal;
And/or after receiving a second media code stream from the called terminal, the H323-SIP gateway decodes the second media code stream according to the third dynamic load type, codes the decoded second media code stream again according to the second dynamic load type, and sends the second media code stream to the calling terminal.
6. The method according to claim 3, wherein before the H323-SIP gateway sends the first codec message to the calling terminal and the called terminal, the method comprises:
the H323-SIP gateway calculates the total number of available media resources, and selects single capability from the first common capability set according to the total number of the media resources.
7. The method according to claim 4, wherein before the H323-SIP gateway sends the second codec message to the calling terminal, the method comprises:
the H323-SIP gateway calculates the total number of available media resources, and selects single capability from the second common capability set according to the total number of the media resources;
before the H323-SIP gateway sends a third coding and decoding message to the called terminal, the method comprises the following steps:
the H323-SIP gateway calculates the total number of available media resources, and selects single capability from the third common capability set according to the total number of media resources.
8. an H323-SIP gateway, comprising: the system comprises a protocol stack module, a main control module and a media module which are connected with each other;
The protocol stack module is used for sending an empty capacity calling message to a called terminal after receiving a calling access request of a calling terminal, wherein the empty capacity calling message is used for requesting capacity set information of the called terminal, and the calling access request carries the capacity set information of the calling terminal;
The main control module is configured to, after receiving the capability set information sent by the called terminal, notify the media module to directly forward the received media code stream to the calling terminal or the called terminal when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway have the first common capability set.
9. the H323-SIP gateway of claim 8,
The main control module is further configured to notify the media module to transcode the received media code stream and send the transcoded media code stream to the calling terminal or the called terminal when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway do not have the first common capability set.
10. the H323-SIP gateway of claim 8,
The main control module is further configured to, after it is determined that the calling terminal, the called terminal, and the H323-SIP gateway have a common capability set, notify the protocol stack module to send a first codec message to the calling terminal and the called terminal, where the first codec message is used to notify the calling terminal and the called terminal to use a same first dynamic load type, encryption key, and encryption algorithm for encoding and decoding, and the first dynamic load type is used to indicate a single capability preferred from the first common capability set.
11. The H323-SIP gateway of claim 9,
the main control module is further configured to, when it is determined that the calling terminal, the called terminal, and the H323-SIP gateway do not have the first common capability set, notify the protocol stack module to send a second codec message to the calling terminal if the H323-SIP gateway and the calling terminal have a second common capability set, where the second codec message is used to notify a second dynamic load type used by the calling terminal, and the second dynamic load type is used to indicate a single capability preferred from the second common capability set; if the H323-SIP gateway and the called terminal have a third common capability set, the protocol stack module is informed to send a third coding and decoding message to the called terminal, the third coding and decoding message is used for informing a third dynamic load type used by the called terminal, and the third dynamic load type is used for indicating a single capability preferred from the third common capability set.
12. The H323-SIP gateway of claim 11,
the media module is used for decoding the first media code stream according to the second dynamic load type after receiving the first media code stream from the calling terminal, coding the decoded first media code stream again according to the three dynamic load types and then sending the coded first media code stream to the called terminal;
and/or the media module is further configured to decode a second media code stream according to the third dynamic load type after receiving the second media code stream from the called terminal, and encode the decoded second media code stream again according to the second dynamic load type and send the encoded second media code stream to the calling terminal.
13. the H323-SIP gateway of claim 10,
The media module is used for calculating and storing the total number of available media resources before the protocol stack module sends the first coding and decoding message to the calling terminal and the called terminal;
The main control module is further configured to select a single capability from the first common capability set according to the total number of the media resources.
14. the H323-SIP gateway of claim 11,
the media module is used for calculating and storing the total number of the available media resources before the protocol stack module sends the second coding and decoding message to the calling terminal;
The main control module is further configured to select a single capability from the second common capability set according to the total number of the media resources;
the media module is further configured to calculate and store the total number of available media resources before the protocol stack module sends the third codec message to the called terminal;
The main control module is further configured to select a single capability from the third common capability set according to the total number of the media resources.
15. an H323-SIP gateway, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing a media transmission method according to any of claims 1 to 7.
16. a computer-readable storage medium, characterized in that an information processing program is stored thereon, which when executed by a processor implements the steps of the media transmission method according to any one of claims 1 to 7.
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| PCT/CN2019/089692 WO2019228534A1 (en) | 2018-06-01 | 2019-05-31 | Media transmission method and h323-sip gateway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113079357A (en) * | 2021-04-08 | 2021-07-06 | 天地伟业技术有限公司 | Encoder and system for realizing audio and video interaction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301025B (en) * | 2021-05-07 | 2022-10-25 | 中国人民解放军陆军工程大学 | IMS audio and video transcoding and transmission control system and implementation method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801925A (en) * | 2004-12-31 | 2006-07-12 | 华为技术有限公司 | Method for realizing NGN network and mobile network video interconnection |
| CN1996970A (en) * | 2006-12-19 | 2007-07-11 | 中兴通讯股份有限公司 | A negotiation method for 3G video gateway multi-media decoding and encoding capability |
| CN101056466A (en) * | 2007-02-12 | 2007-10-17 | 华为技术有限公司 | A method and device for adjusting the voice encoding and decoding mode in the call process |
| US20070263611A1 (en) * | 2006-04-04 | 2007-11-15 | Don Mitchell | SS7 ISUP to SIP based call signaling conversion gateway for wireless VoIP E911 |
| CN101483930A (en) * | 2008-12-30 | 2009-07-15 | 华为技术有限公司 | Utilizing method, device and system for media gateway resource |
| CN102025715A (en) * | 2010-05-17 | 2011-04-20 | 华中科技大学 | SIP (Session Initiation Protocol) protocol-based multimedia network communication method |
| CN102196106A (en) * | 2010-03-11 | 2011-09-21 | 华为软件技术有限公司 | Method and related equipment for realizing call between calling party and called party |
| CN103929420A (en) * | 2014-04-01 | 2014-07-16 | 中国人民解放军91655部队 | Multi-media call control method and system |
| CN104158814A (en) * | 2014-08-21 | 2014-11-19 | 大唐移动通信设备有限公司 | Method and device of converting media coding manner |
| CN104380685A (en) * | 2013-04-18 | 2015-02-25 | 统一有限责任两合公司 | A method of controlling a codec negotiation of a gateway, a computer program product for executing the method, and a communication system for controlling the codec negotiation |
| CN104486293A (en) * | 2014-11-25 | 2015-04-01 | 中国电子科技集团公司第三十研究所 | Media negotiation method and system based on network and terminal capability under wireless VoIP (Voice Over Internet Protocol) environment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1881869B (en) * | 2005-11-01 | 2010-05-05 | 华为技术有限公司 | Method for realizing encryption communication |
| US20080186952A1 (en) * | 2006-08-11 | 2008-08-07 | Huawei Technologies Co., Ltd. | Method and system for setting up a multimedia session in multimedia internetworking systems |
| WO2008046245A1 (en) * | 2006-10-17 | 2008-04-24 | Huawei Technologies Co., Ltd. | Method and system for setting up a multimedia session in multimedia internetworking systems |
| JP5397470B2 (en) * | 2009-06-04 | 2014-01-22 | 日本電気株式会社 | Gateway apparatus and method and system |
| CN107181723A (en) * | 2016-03-11 | 2017-09-19 | 中兴通讯股份有限公司 | A kind of media coding/decoding negotiation method and terminal device |
-
2018
- 2018-06-01 CN CN201810559119.0A patent/CN110557593A/en active Pending
-
2019
- 2019-05-31 WO PCT/CN2019/089692 patent/WO2019228534A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801925A (en) * | 2004-12-31 | 2006-07-12 | 华为技术有限公司 | Method for realizing NGN network and mobile network video interconnection |
| US20070263611A1 (en) * | 2006-04-04 | 2007-11-15 | Don Mitchell | SS7 ISUP to SIP based call signaling conversion gateway for wireless VoIP E911 |
| CN1996970A (en) * | 2006-12-19 | 2007-07-11 | 中兴通讯股份有限公司 | A negotiation method for 3G video gateway multi-media decoding and encoding capability |
| CN101056466A (en) * | 2007-02-12 | 2007-10-17 | 华为技术有限公司 | A method and device for adjusting the voice encoding and decoding mode in the call process |
| CN101483930A (en) * | 2008-12-30 | 2009-07-15 | 华为技术有限公司 | Utilizing method, device and system for media gateway resource |
| CN102196106A (en) * | 2010-03-11 | 2011-09-21 | 华为软件技术有限公司 | Method and related equipment for realizing call between calling party and called party |
| CN102025715A (en) * | 2010-05-17 | 2011-04-20 | 华中科技大学 | SIP (Session Initiation Protocol) protocol-based multimedia network communication method |
| CN104380685A (en) * | 2013-04-18 | 2015-02-25 | 统一有限责任两合公司 | A method of controlling a codec negotiation of a gateway, a computer program product for executing the method, and a communication system for controlling the codec negotiation |
| CN103929420A (en) * | 2014-04-01 | 2014-07-16 | 中国人民解放军91655部队 | Multi-media call control method and system |
| CN104158814A (en) * | 2014-08-21 | 2014-11-19 | 大唐移动通信设备有限公司 | Method and device of converting media coding manner |
| CN104486293A (en) * | 2014-11-25 | 2015-04-01 | 中国电子科技集团公司第三十研究所 | Media negotiation method and system based on network and terminal capability under wireless VoIP (Voice Over Internet Protocol) environment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113079357A (en) * | 2021-04-08 | 2021-07-06 | 天地伟业技术有限公司 | Encoder and system for realizing audio and video interaction |
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| Publication number | Publication date |
|---|---|
| WO2019228534A1 (en) | 2019-12-05 |
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