CN103051927A - Stream media transcoding control method, stream media transcoding control device and stream media transcoding device - Google Patents
Stream media transcoding control method, stream media transcoding control device and stream media transcoding device Download PDFInfo
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Abstract
The embodiment of the invention provides a stream media transcoding control method and a stream media transcoding control device on the basis of SIP (Session Initiation Protocol) information and a stream media transcoding device. The stream media transcoding control method comprises the following steps of: receiving SIP request information of a first party; forwarding the SIP request information of the first party to a second party; receiving SIP response information corresponding to the SIP request information from the second party; and when a stream media format supported in the SIP request information and a stream media format supported in the SIP response information do not have an intersection, starting stream media transcoding processing to implement stream media interaction between the first party and the second party. The method provides stream media transcoding support so as to implement stream media interaction between terminals of which the stream media formats are unmatched.
Description
Technical field
The present invention relates to the streaming media communication technology, particularly the streaming media transcoding control method of a kind of dialogue-based startup agreement (SIP) information and device and a kind of streaming media transcoding device.
Background technology
In the streaming media communication process, when both call sides streaming coding format mismatching, then can't be directly to carry out Streaming Media by switching equipment mutual, for example work as terminal A and only support the H264 video format, terminal B only supports the MPEG4 video format, and then both sides can't directly carry out video interactive by switching equipment.At this moment, generally mutually consult by both call sides, stipulate out the coded format that a kind of both sides support, solve the each other unmatched problem of stream media format.But this not only affects the flexibility of Streaming Media reciprocal process, and the diversity of stream media format that the user uses has been produced larger restriction.
In addition, also can utilize transcoding technology, a side stream media format wherein be converted to the opposing party's stream media format.Yet be two terminals are set up the mutual transcoding equipment that connects of Streaming Media and can not be worked alone at present, need and the switching equipment collaborative work, and the function of calling switching equipment need to judge whether transcoding.So, when needs upgrade existing equipment and upgrade, just must change corresponding switching equipment.This will cause the software and hardware resources waste.
Therefore, a kind of new streaming media transcoding control method and device and a kind of new streaming media transcoding device based on SIP information need to be provided, do not needing to call in the situation of switching equipment, the streaming media transcoding support is provided, thereby realizes that the Streaming Media between the unmatched terminal of stream media format is mutual.
Summary of the invention
The problem that the present invention solves provides a kind of streaming media transcoding control method based on SIP information and device and a kind of new streaming media transcoding device, do not needing to call in the situation of switching equipment, so that the streaming media transcoding support to be provided, thereby realize that the Streaming Media between the unmatched terminal of stream media format is mutual.
For addressing the above problem, embodiments of the invention provide a kind of streaming media transcoding control method based on SIP information, and described method comprises: the SIP solicited message that receives first party; The SIP solicited message of described first party is transmitted to second party; Receive the SIP response message corresponding with described SIP solicited message from described second party; And when the stream media format of supporting in the stream media format of supporting in the described SIP solicited message and the described SIP response message does not possess common factor, start streaming media transcoding and process, so that realize between described first party and the described second party that Streaming Media is mutual.
Alternatively, the SIP solicited message of described first party is transmitted to before the second party, described streaming media transcoding control method also comprises: stream media format in the SIP solicited message of the described first party of completion makes the SIP solicited message after the completion comprise the stream media format that at least a described second party is supported.
Alternatively, starting the method that streaming media transcoding processes comprises: specify a kind of stream media format of support of described first party as the mutual form of the Streaming Media of described first party; Specify a kind of stream media format of described second party support as the mutual form of the Streaming Media of described second party; The streaming media transcoding unit address is informed described first party; Described streaming media transcoding unit address is informed described second party; And startup streaming media transcoding thread.
Alternatively, specify a kind of stream media format of support of described first party to comprise as the method for the mutual form of Streaming Media of described first party: to select a kind of stream media format in the stream media format of from the SIP solicited message of described first party, supporting; The stream media format that the stream media format of described selection is only comprised as the SIP response message of described second party, and the SIP response message of described second party sent to described first party.
Alternatively, the streaming media transcoding unit address is informed the method for described first party comprises: make the SIP response message of described second party comprise described streaming media transcoding unit address.
Alternatively, specify a kind of stream media format of support of described second party to comprise as the method for the mutual form of Streaming Media of described first party: to select a kind of stream media format in the stream media format of from the SIP solicited message of described second party, supporting; The SIP that generates a stream media format that only comprises described selection is solicited message again; With described SIP again solicited message send to described second party.
Alternatively, the streaming media transcoding unit address is informed the method for described second party comprises: make described SIP again comprise described streaming media transcoding unit address in the solicited message.
Alternatively, described streaming media transcoding thread comprises: the first-class media that receive described first party; According to the mutual form of the appointed Streaming Media of described first party described first-class media are resolved to initial data frame; According to the mutual form of the appointed Streaming Media of described second party described initial data frame is encoded into the second media; Described second media are sent to described second party.
Alternatively, described streaming media transcoding thread comprises: the 3rd Streaming Media that receives described second party; According to the mutual form of the appointed Streaming Media of described second party described the 3rd Streaming Media is resolved to initial data frame; According to the mutual form of the appointed Streaming Media of described first party described initial data frame is encoded into the 4th Streaming Media; Described the 4th Streaming Media is sent to described first party.
Alternatively, described Streaming Media is video.
Embodiments of the invention also provide a kind of streaming media transcoding control device based on SIP information, and described device comprises: the first receiving element, for the SIP solicited message that receives first party; Transmitting element is used for the SIP solicited message of described first party is transmitted to second party; The second receiving element is used for receiving the SIP response message corresponding with described SIP solicited message from described second party; And first control unit, be used for when the stream media format of supporting in stream media format that described SIP solicited message is supported and the described SIP response message does not possess common factor, start streaming media transcoding and process, so that realize between described first party and the described second party that Streaming Media is mutual.
Alternatively, described streaming media transcoding control device also comprises: the second control unit, be used for the SIP solicited message stream media format of the described first party of completion, and make the SIP solicited message after the completion comprise the stream media format that at least a described second party is supported.
Alternatively, described streaming media transcoding control device also comprises: the 3rd control unit, the stream media format of support that is used to specify a kind of described first party are as the mutual form of the Streaming Media of described first party and specify stream media format that a kind of described second party supports as the mutual form of the Streaming Media of described second party; The 4th control unit is used for the streaming media transcoding unit address is informed described first party and described streaming media transcoding unit address is informed described second party; And the 5th control unit, be used for starting the streaming media transcoding thread.
Alternatively, described Streaming Media is video.
Embodiments of the invention also provide a kind of streaming media transcoding device, described streaming media transcoding device comprises: based on the Streaming Media conversion control device of SIP information, be used for not existing when occuring simultaneously when stream media format that transmit leg and recipient support, start the streaming media transcoding processing; The Streaming Media receiving system is used for receiving the Streaming Media of described transmit leg after described Streaming Media conversion control device starts the streaming media transcoding processing; The Streaming Media decoding device is used for after described Streaming Media conversion control device starts the streaming media transcoding processing described Streaming Media being resolved to initial data frame; The streaming coding device; After described Streaming Media conversion control device starts the streaming media transcoding processing, described original described frame is encoded into the Streaming Media that described reception can be resolved; The Streaming Media dispensing device; Be used for after described Streaming Media conversion control device starts the streaming media transcoding processing, the Streaming Media that described reception can be resolved sends to described recipient.
Alternatively, described Streaming Media is video.
Compared with prior art, embodiments of the invention have following beneficial effect:
At first, in above-mentioned Streaming Media switching control method based on SIP information, when the stream media format of supporting in the SIP response message of the stream media format of supporting in the SIP of the described first party that the receives solicited message and described second party does not possess common factor, start streaming media transcoding and process, so that it is mutual unimpededly to carry out Streaming Media between the unmatched described first party of stream media format and the described second party.This not only allows described first party or second party obtain Streaming Media neatly and is not subjected to the restriction of form, and so that the user can freely select form when making Streaming Media, and do not worry and can't share.
In addition, the above-mentioned streaming media transcoding device that provides can not need to call in the situation of switching equipment, independently judge whether exist stream media format to occur simultaneously between two terminals based on SIP information, and for unmatched two terminals of stream media format provide the transcoding service, that is to say between the course of work of described streaming media transcoding device and switching equipment separate.So, when described streaming media transcoding device being upgraded and upgrade, just need not to replace existing switching equipment, upgrade cost thereby reduced network.
Description of drawings
Fig. 1 is the flow chart of streaming media transcoding control method in one embodiment of the invention;
Fig. 2 starts the method flow diagram that streaming media transcoding is processed in one embodiment of the invention;
Fig. 3 is the structural representation of streaming media transcoding control device in one embodiment of the invention;
Fig. 4 is the structural representation of streaming media transcoding device in one embodiment of the invention;
Embodiment
Existing transcoding equipment need to call switching equipment and need judge whether transcoding, can not independently carry out the transcoding judgement and the transcoding service is provided.After deliberation, the inventor finds, can be by allowing transcoding device independently carry out the whether judgement of transcoding based on SIP information, thus independently carry out the transcoding service in the situation of switching equipment never calling.
For the problems referred to above, embodiments of the invention provide a kind of streaming media transcoding control method.Fig. 1 is the flow chart of streaming media transcoding control method in one embodiment of the invention.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.Set forth in the following description a lot of details so that fully understand the present invention, implement but the present invention can also adopt other to be different from alternate manner described here, so the present invention has not been subjected to the restriction of following public specific embodiment.
At first, please refer to Fig. 1, execution in step S100, the SIP solicited message of reception first party.In an embodiment of the present invention, comprise the stream media format that described first party is supported in the described SIP solicited message, described Streaming Media can be video, audio frequency and multimedia messages etc.For example, can comprise H263 video format, H263+ video format, H264 video format and MPEG4 video format etc. in the described SIP solicited message.
Then, execution in step S200 is transmitted to second party with the SIP solicited message of described first party.Need to prove, in the SIP of described first party solicited message, do not comprise the stream media format that at least a described second party is supported, will in the SIP response message, refuse corresponding streaming media service in follow-up described second party.For example, terminal B only supports the video format of H264, and does not comprise the video format of H264 in the SIP solicited message of terminal A, will refuse so the mutual of video section in the SIP of terminal B response message.
Therefore, in an embodiment of the present invention, the SIP solicited message of described first party is transmitted to before the second party, described streaming media transcoding control method can also comprise: stream media format in the SIP solicited message of the described first party of completion makes the SIP solicited message after the completion comprise the stream media format that at least a described second party is supported.
Need to prove, in the SIP of the described first party of completion solicited message during stream media format, and do not know which stream media format is described second party support, therefore, can take to fill into the mode of stream media format as much as possible, come so that the SIP solicited message after the completion comprises the stream media format that at least a described second party is supported.
For example, in the SIP of described first party solicited message, only comprise and look H263 frequently form and H263+ video format, and the video format that described second party is supported only is the H264 video format, so just the various video forms such as H263+, MPEG4 and H264 need to be covered in the described SIP solicited message, so that the SIP solicited message after the described completion comprises the H264 video format at least, refuse the video call of described first party to avoid follow-up second party.
Then, execution in step S300 receives the SIP response message corresponding with described SIP solicited message from described second party.In an embodiment of the present invention, comprise the stream media format that described second party is supported in the SIP response message of described second party, described Streaming Media can be video, audio frequency and multimedia messages etc.For example, can comprise H263 video format, H263+ video format, H264 video format and MPEG4 video format etc. in the described SIP solicited message.
Need to prove, in an embodiment of the present invention, described SIP solicited message and described SIP response message all comprise message registration sign (CALL-ID), it is SIP information in the generation of same communication process that described same CALL-ID is used for identifying described SIP solicited message and described SIP response message, that is to say by CALL-ID to judge whether described SIP solicited message and described SIP response message be corresponding.
Then, execution in step S400, when the stream media format of supporting in the stream media format of supporting in the described SIP solicited message and the described SIP response message does not possess common factor, start streaming media transcoding and process, so that realize between described first party and the described second party that Streaming Media is mutual.
For example, in one embodiment of this invention, the stream media format that comprises in the SIP of described first party solicited message is H263 video format and H263+ video format, and the stream media format that comprises in the SIP response message of described second party is H264 video format and MPEG4 video format, obviously, the stream media format of supporting in the stream media format of supporting in the described SIP solicited message and the described SIP response message does not possess common factor, so need to start streaming media transcoding and process, can't to carry out Streaming Media not mutual because stream media format does not mate to avoid between described first party and the second party.
Please refer to Fig. 2, in an embodiment of the present invention, the method that starts the streaming media transcoding processing comprises: step S401, step S402, step S403, step S404 and step S405.
At first, execution in step S401 specifies a kind of stream media format of support of described first party as the mutual form of the Streaming Media of described first party.Follow-up described first party will send to transcoding device with Streaming Media with the stream media format of described appointment, and transcoding device also will be decoded to described Streaming Media according to the stream media format of described appointment.In addition, follow-up described first party also will be according to the stream media format of described appointment from described transcoding device receiving stream media.
In an embodiment of the present invention, specify a kind of stream media format of support of described first party to comprise as the method for the mutual form of Streaming Media of described first party: to select a kind of stream media format in the stream media format of from the SIP solicited message of described first party, supporting; The stream media format that only comprises in the SIP response message of stream media format as described second party with described selection, and the SIP response message of described second party sent to described first party.
Then, execution in step S402 specifies a kind of stream media format of described second party support as the mutual form of the Streaming Media of described second party.Follow-up described second party will send to transcoding device with Streaming Media with the stream media format of described appointment, and transcoding device also will be decoded to described Streaming Media according to the stream media format of described appointment.In addition, follow-up described second party also will be according to the stream media format of described appointment from described transcoding device receiving stream media.
In an embodiment of the present invention, specify a kind of stream media format of support of described second party to comprise as the method for the mutual form of Streaming Media of described first party: to select a kind of stream media format in the stream media format of from the SIP solicited message of described second party, supporting; The SIP that generates a stream media format that only comprises described selection is solicited message again; With described SIP again solicited message send to described second party.
Need to prove that in one embodiment of this invention, described SIP again solicited message is to generate according to original SIP solicited message, just the stream media format in the original SIP solicited message is made only to comprise into the stream media format of described appointment.
Then, execution in step S403 informs described first party with the streaming media transcoding unit address.In embodiments of the present invention, the streaming media transcoding unit address is informed the method for described first party comprises: make the SIP response message of described second party comprise described streaming media transcoding unit address.
Then, execution in step S404 informs described second party with described streaming media transcoding unit address.In embodiments of the present invention, the streaming media transcoding unit address is informed the method for described second party comprises: make described SIP again solicited message comprise described streaming media transcoding unit address.
Then, execution in step S405 starts the streaming media transcoding thread.In one embodiment of this invention, described streaming media transcoding thread comprises: the first-class media that receive described first party; According to the mutual form of the appointed Streaming Media of described first party described first-class media are resolved to initial data frame; According to the mutual form of the appointed Streaming Media of described second party described initial data frame is encoded into the second media; Described second media are sent to described second party.
In another embodiment of the present invention, described streaming media transcoding thread comprises: the 3rd Streaming Media that receives described second party; According to the mutual form of the appointed Streaming Media of described second party described the 3rd Streaming Media is resolved to initial data frame; According to the mutual form of the appointed Streaming Media of described first party described initial data frame is encoded into the 4th Streaming Media; Described the 4th Streaming Media is sent to described first party.
Please refer to Fig. 3, embodiments of the invention also provide a kind of streaming media transcoding control device 500 based on SIP information, and described device 500 comprises: the first receiving element 501, for the SIP solicited message that receives first party; Transmitting element 502 is used for the SIP solicited message of described first party is transmitted to second party; The second receiving element 503 is used for receiving the SIP response message corresponding with described SIP solicited message from described second party; And first control unit 504, be used for when the stream media format of supporting in stream media format that described SIP solicited message is supported and the described SIP response message does not possess common factor, start streaming media transcoding and process, so that realize between described first party and the described second party that Streaming Media is mutual.
Continuation is with reference to figure 3, in an embodiment of the present invention, described streaming media transcoding control device can also comprise: the second control unit 505, be used for before described transmitting element 502 sends described SIP solicited message, stream media format in the SIP solicited message of the described first party of completion makes the SIP solicited message after the completion comprise the stream media format that at least a described second party is supported.
Continuation is with reference to figure 3, in an embodiment of the present invention, described streaming media transcoding control device can also comprise: the 3rd control unit 506, the stream media format of support that is used to specify a kind of described first party are as the mutual form of the Streaming Media of described first party and specify stream media format that a kind of described second party supports as the mutual form of the Streaming Media of described second party; The 4th control unit 507 is used for the streaming media transcoding unit address is informed described first party and described streaming media transcoding unit address is informed described second party; And the 5th control unit 508, be used for starting the streaming media transcoding thread.
In an embodiment of the present invention, described Streaming Media can be video, audio frequency or multimedia messages.
Please refer to Fig. 4, embodiments of the invention also provide a kind of streaming media transcoding device 600, described device 600 comprises: based on the Streaming Media conversion control device 500 of SIP information, be used for not existing when occuring simultaneously when stream media format that transmit leg and recipient support, start the streaming media transcoding processing; Streaming Media receiving system 601 is used for receiving the Streaming Media of described transmit leg after described Streaming Media conversion control device starts the streaming media transcoding processing; Streaming Media decoding device 602 is used for after described Streaming Media conversion control device starts the streaming media transcoding processing described Streaming Media being resolved to initial data frame; Streaming coding device 603; After described Streaming Media conversion control device starts the streaming media transcoding processing, described original described frame is encoded into the Streaming Media that described reception can be identified; Streaming Media dispensing device 604; Be used for after described Streaming Media conversion control device starts the streaming media transcoding processing, the Streaming Media that described reception can be identified sends to described recipient.In an embodiment of the present invention, described Streaming Media can be video, audio frequency or multimedia messages.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away from the technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention according to any simple modification, equivalent variations and the modification that technical spirit of the present invention is done above embodiment, all still belongs in the scope of technical solution of the present invention protection.
Claims (16)
1. the streaming media transcoding control method of a dialogue-based startup agreement (SIP) information is characterized in that,
Comprise:
Receive the SIP solicited message of first party;
The SIP solicited message of described first party is transmitted to second party;
Receive the SIP response message corresponding with described SIP solicited message from described second party; And
When the stream media format of supporting in the stream media format of supporting in the described SIP solicited message and the described SIP response message does not possess common factor, start streaming media transcoding and process, so that realize between described first party and the described second party that Streaming Media is mutual.
2. streaming media transcoding control method as claimed in claim 1, it is characterized in that, the SIP solicited message of described first party is transmitted to before the second party, also comprise: stream media format in the SIP solicited message of the described first party of completion makes the SIP solicited message after the completion comprise the stream media format that at least a described second party is supported.
3. streaming media transcoding control method as claimed in claim 1 is characterized in that, starts the method that streaming media transcoding processes and comprises: specify a kind of stream media format of support of described first party as the mutual form of the Streaming Media of described first party; Specify a kind of stream media format of described second party support as the mutual form of the Streaming Media of described second party; The streaming media transcoding unit address is informed described first party; Described streaming media transcoding unit address is informed described second party; And startup streaming media transcoding thread.
4. streaming media transcoding control method as claimed in claim 3, it is characterized in that, specify a kind of stream media format of support of described first party to comprise as the method for the mutual form of Streaming Media of described first party: to select a kind of stream media format in the stream media format of from the SIP solicited message of described first party, supporting; The stream media format that only comprises in the SIP response message of stream media format as described second party with described selection, and the SIP response message of described second party sent to described first party.
5. streaming media transcoding control method as claimed in claim 4 is characterized in that, the streaming media transcoding unit address is informed the method for described first party comprises: make the SIP response message of described second party comprise described streaming media transcoding unit address.
6. streaming media transcoding control method as claimed in claim 3, it is characterized in that, specify a kind of stream media format of support of described second party to comprise as the method for the mutual form of Streaming Media of described first party: to select a kind of stream media format in the stream media format of from the SIP solicited message of described second party, supporting; The SIP that generates a stream media format that only comprises described selection is solicited message again; With described SIP again solicited message send to described second party.
7. streaming media transcoding control method as claimed in claim 6 is characterized in that, the streaming media transcoding unit address is informed the method for described second party comprises: make described SIP again solicited message comprise described streaming media transcoding unit address.
8. streaming media transcoding control method as claimed in claim 3 is characterized in that, described streaming media transcoding thread comprises: the first-class media that receive described first party; According to the mutual form of the appointed Streaming Media of described first party described first-class media are resolved to initial data frame; According to the mutual form of the appointed Streaming Media of described second party described initial data frame is encoded into the second media; Described second media are sent to described second party.
9. streaming media transcoding control method as claimed in claim 3 is characterized in that, described streaming media transcoding thread comprises: the 3rd Streaming Media that receives described second party; According to the mutual form of the appointed Streaming Media of described second party described the 3rd Streaming Media is resolved to initial data frame; According to the mutual form of the appointed Streaming Media of described first party described initial data frame is encoded into the 4th Streaming Media; Described the 4th Streaming Media is sent to described first party.
10. streaming media transcoding control method as claimed in claim 1 is characterized in that, described Streaming Media is video.
11. the streaming media transcoding control device based on SIP information is characterized in that, comprising:
The first receiving element is for the SIP solicited message that receives first party;
Transmitting element is used for the SIP solicited message of described first party is transmitted to second party;
The second receiving element is used for receiving the SIP response message corresponding with described SIP solicited message from described second party; And
The first control unit, be used for when the stream media format of supporting in stream media format that described SIP solicited message is supported and the described SIP response message does not possess common factor, start streaming media transcoding and process, so that realize between described first party and the described second party that Streaming Media is mutual.
12. streaming media transcoding control device as claimed in claim 11, it is characterized in that, also comprise: the second control unit, the SIP solicited message stream media format that is used for the described first party of completion before described transmitting element is transmitted described SIP solicited message makes the SIP solicited message after the completion comprise the stream media format that at least a described second party is supported.
13. streaming media transcoding control device as claimed in claim 11, it is characterized in that, also comprise: the 3rd control unit, the stream media format of support that is used to specify a kind of described first party are as the mutual form of the Streaming Media of described first party and specify stream media format that a kind of described second party supports as the mutual form of the Streaming Media of described second party; The 4th control unit is used for the streaming media transcoding unit address is informed described first party and described streaming media transcoding unit address is informed described second party; And the 5th control unit, be used for starting the streaming media transcoding thread.
14. streaming media transcoding control device as claimed in claim 11 is characterized in that, described Streaming Media is video.
15. a streaming media transcoding device is characterized in that: comprise
Streaming Media conversion control device based on SIP information as claimed in claim 11 is used for not existing when occuring simultaneously when stream media format that transmit leg and recipient support, starts the streaming media transcoding processing;
The Streaming Media receiving system is used for receiving the Streaming Media of described transmit leg after described Streaming Media conversion control device starts the streaming media transcoding processing;
The Streaming Media decoding device is used for after described Streaming Media conversion control device starts the streaming media transcoding processing described Streaming Media being resolved to initial data frame;
The streaming coding device; After described Streaming Media conversion control device starts the streaming media transcoding processing, described original described frame is encoded into the Streaming Media that described reception can be resolved;
The Streaming Media dispensing device; Be used for after described Streaming Media conversion control device starts the streaming media transcoding processing, the Streaming Media that described reception can be resolved sends to described recipient.
16. streaming media transcoding device as claimed in claim 15 is characterized in that, described Streaming Media is video.
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| CN104786156B (en) * | 2015-02-03 | 2017-08-18 | 浙江工业大学 | A kind of ultrasonic assistant three-phase abrasive Flow polishing processing device |
| WO2017036395A1 (en) * | 2015-08-31 | 2017-03-09 | 中兴通讯股份有限公司 | Resource request method and apparatus |
| CN110650371A (en) * | 2018-06-27 | 2020-01-03 | 视联动力信息技术股份有限公司 | Video-on-demand method and device |
| WO2023124587A1 (en) * | 2021-12-31 | 2023-07-06 | 上海海思技术有限公司 | Media file transmission method and device |
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