CN103051860A - Video refreshing method, device, media gateway control equipment and media processing equipment - Google Patents
Video refreshing method, device, media gateway control equipment and media processing equipment Download PDFInfo
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- CN103051860A CN103051860A CN2012105783371A CN201210578337A CN103051860A CN 103051860 A CN103051860 A CN 103051860A CN 2012105783371 A CN2012105783371 A CN 2012105783371A CN 201210578337 A CN201210578337 A CN 201210578337A CN 103051860 A CN103051860 A CN 103051860A
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Abstract
The invention provides a video refreshing method, a video refreshing device, media gateway control equipment and media processing equipment. The video refreshing method comprises the following steps of: receiving a video calling request of calling an Internet protocol (IP) video end from a video terminal; transmitting the video calling request carrying a video refreshing detection event to the media processing equipment; receiving a detection result which indicates that a video frame between the video terminal and the IP video end is consistent with a refreshing condition and is reported according to the video refreshing detection event after establishing a video call between the video terminal and the IP video end according to the video calling request by the media processing equipment; and generating a refreshing instruction according to the detection result, and transmitting the refreshing instruction to the media processing equipment, so that the media refreshing equipment can refresh the video frame according to the refreshing instruction. A low-quality image can be quickly refreshed.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of video refreshing method, device, media gateway controlling equipment and medium processing device.
Background technology
H.248, MGCP is one of interface protocol in the next generation network, it is applied to, and the control of media processing and signaling separates the control interface that produces afterwards in the next generation network, be used for media gateway controlling equipment, for example: Media Gateway Controller, Softswitch, with corresponding medium processing device, such as: the communication between gateway, media server, the IP intelligent terminal etc., as just having adopted this agreement between Media Gateway Controller and the media gateway.
Medium processing device during as the interwork unit of video media, can be realized the intercommunication between the video terminal between communication network and video-signal system, video gateway is exactly so a kind of medium processing device, as shown in Figure 1.
In the transmittance process of video media stream, owing to reasons such as wireless or networks, the part misdata can occur in video signal is called out, perhaps the lost part data cause video effect relatively poor, such as a large amount of mosaic etc. occurring.Because Video coding adopts the I frame to add the method for delta frame, the interval between two I frames is at 10-15 about second, and if there is loss of data, then frame of video will arrive next I frame and could recover, and user's experience effect is poor.
Existing video flush mechanism, be media gateway controlling equipment regularly, about 10-15 second to video terminal side transmission I frame, but can not solve the problem of the poor image quality that short-term jitter etc. causes by MGCP notice medium processing device like this.
Summary of the invention
The purpose of this invention is to provide a kind of video refreshing method, device, media gateway controlling equipment and medium processing device, the ropy image of fast refresh.
To achieve these goals, the embodiment of the invention provides a kind of video refreshing method, be used for media gateway controlling equipment, described media gateway controlling equipment communicates by MGCP and a media gateway handles equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing method comprises:
Receive the video call request of the request call one IP video end of video terminal transmission;
Issue and carry described video call request that described video refreshes the detection event to described medium processing device;
Receive described medium processing device according to described video call request, for after described video terminal and described IP video end set up video calling, refresh the detection event according to described video, the frame of video between the described video terminal that reports and the described IP video end meets the testing result of flush condition;
Described medium processing device generates refreshing instruction according to described testing result and is issued to described medium processing device, so that can refresh to described frame of video according to described refreshing instruction.
Wherein, preferably, described MGCP is agreement H.248.
To achieve these goals, the embodiment of the invention also provides a kind of video refreshing method, be used for a medium processing device, described medium processing device communicates by MGCP and a media gateway controlling equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing method comprises:
Receive described media gateway controlling equipment when receiving the video call request of the request call one IP video end that a video terminal sends, what issue carries the described video call request that described video refreshes the detection event;
According to described video call request, for described video terminal and described IP video end are set up video calling;
Refresh the detection event according to described video, whether the frame of video between described video terminal and the described IP video end is met flush condition detect, obtain a testing result;
When described testing result indicates described frame of video to meet flush condition, report described testing result to described media gateway controlling equipment, be issued to described medium processing device so that described media gateway controlling equipment can generate refreshing instruction according to described testing result;
Receive the described refreshing instruction that described medium processing device issues;
According to described refreshing instruction described frame of video is refreshed.
Wherein, preferably, described flush condition is specially:
The data loss rate of frame of video surpasses the first predetermined threshold value; Or
The data error rate of frame of video surpasses the second predetermined threshold value; Or
The continual data package dropout rate of frame of video surpasses the 3rd predetermined threshold value.
Wherein, preferably, described described frame of video being refreshed according to described refreshing instruction is specially:
According to described refreshing instruction, regenerate last I frame;
Send described I frame to described video terminal.
To achieve these goals, the embodiment of the invention also provides a kind of video refreshing apparatus, be used for media gateway controlling equipment, described media gateway controlling equipment communicates by MGCP and a media gateway handles equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing apparatus comprises:
The first receiver module is used for the video call request of the request call one IP video end of reception one video terminal transmission;
First issues module, is used for issuing carrying described video and refreshing the described video call request of detection event to described medium processing device;
The second receiver module, be used for receiving described medium processing device according to described video call request, for after described video terminal and described IP video end set up video calling, refresh the detection event according to described video, the frame of video between the described video terminal that reports and the described IP video end meets the testing result of flush condition;
Second issues module, is used for generating refreshing instruction according to described testing result and is issued to described medium processing device, so that described medium processing device can refresh described frame of video according to described refreshing instruction.
Wherein, preferably, described MGCP is agreement H.248.
To achieve these goals, the embodiment of the invention also provides a kind of video refreshing apparatus, be used for a medium processing device, described medium processing device communicates by MGCP and a media gateway controlling equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing apparatus comprises:
The 3rd receiver module is used for receiving described media gateway controlling equipment when receiving the video call request of the request call one IP video end that a video terminal sends, and what issue carries the described video call request that described video refreshes the detection event;
Video calling is set up module, is used for according to described video call request, for described video terminal and described IP video end are set up video calling;
Detection module is used for refreshing the detection event according to described video, whether the frame of video between described video terminal and the described IP video end is met flush condition detect, and obtains a testing result;
Reporting module, be used for when described testing result indicates described frame of video to meet flush condition, report described testing result to described media gateway controlling equipment, be issued to described medium processing device so that described media gateway controlling equipment can generate refreshing instruction according to described testing result;
The 4th receiver module is used for receiving the described refreshing instruction that described medium processing device issues;
Refresh module is used for according to described refreshing instruction described frame of video being refreshed.
Wherein, preferably, described flush condition is specially:
The data loss rate of frame of video surpasses the first predetermined threshold value; Or
The data error rate of frame of video surpasses the second predetermined threshold value; Or
The continual data package dropout rate of frame of video surpasses the 3rd predetermined threshold value.
Wherein, preferably, described module specifically comprises:
I frame generation module is used for according to described refreshing instruction, regenerates last I frame;
Sending module is used for sending described I frame to described video terminal.
To achieve these goals, the embodiment of the invention also provides a kind of media gateway controlling equipment, comprises the described video refreshing apparatus for media gateway controlling equipment of above-mentioned any one.
To achieve these goals, the embodiment of the invention also provides a kind of medium processing device, comprises the described video refreshing apparatus for medium processing device of above-mentioned any one.
The embodiment of the invention has defined a video and has refreshed the detection reported event in MGCP, when medium processing device detects Media Stream picture quality variation, can be by this reporting events to media gateway controlling equipment, after media gateway controlling equipment is received testing result, by MGCP issue refresh the indication to medium processing device, resend up-to-date I frame by medium processing device to the video terminal side, to realize the image fast refresh of video terminal.
Description of drawings
Fig. 1 is video signal Network Communication schematic diagram in the prior art;
Fig. 2 is the schematic flow sheet of the video refreshing method that is used for media gateway controlling equipment of the embodiment of the invention;
Fig. 3 is the schematic flow sheet of the video refreshing method that is used for medium processing device of the embodiment of the invention;
Fig. 4 is the video refresh flow schematic diagram of the embodiment of the invention;
Fig. 5 is the structural representation of the video refreshing apparatus that is used for media gateway controlling equipment of the embodiment of the invention;
Fig. 6 is the structural representation of the video refreshing apparatus that is used for medium processing device of the embodiment of the invention.
Embodiment
For technical problem, technical scheme and advantage that the embodiment of the invention will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The embodiment of the invention provides a kind of video refreshing method, be used for media gateway controlling equipment, described media gateway controlling equipment communicates by MGCP and a media gateway handles equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing method comprises, as shown in Figure 2:
Step 22 issues and carries described video call request that described video refreshes the detection event to described medium processing device;
Step 24 generates refreshing instruction according to described testing result and is issued to described medium processing device, so that described medium processing device can refresh described frame of video according to described refreshing instruction.
Media gateway controlling equipment communicates by MGCP and media gateway handles equipment, video of definition refreshes the event that reports that detects in MGCP, media gateway controlling equipment is when the beginning video call, issue described video and refresh the detection event to medium processing device, medium processing device is in that to detect frame of video of poor quality, in the time of need to refreshing, real-time report media gateway controlling equipment, media gateway controlling equipment regeneration one refreshing instruction, the indication medium processing device carries out fast refresh to ropy frame of video, and comparing with periodic refreshing of the prior art can the ropy image of fast refresh.
In the above-mentioned video refreshing method, MGCP adopts H.248 agreement.
The embodiment of the invention also provides a kind of video refreshing method, be used for a medium processing device, described medium processing device communicates by MGCP and a media gateway controlling equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing method comprises, as shown in Figure 3:
Step 31 receives described media gateway controlling equipment when receiving the video call request of the request call one IP video end that a video terminal sends, and what issue carries the described video call request that described video refreshes the detection event;
Step 33 refreshes the detection event according to described video, whether the frame of video between described video terminal and the described IP video end is met flush condition detect, and obtains a testing result;
Step 34, when described testing result indicates described frame of video to meet flush condition, report described testing result to described media gateway controlling equipment, be issued to described medium processing device so that described media gateway controlling equipment can generate refreshing instruction according to described testing result;
The video call request that medium processing device issues according to media gateway controlling equipment, for the IP video end of video terminal and calling is set up video calling, and refresh the detection event according to the video that carries in the video call request frame of video of transmitting between video terminal and the IP video end is detected, when detecting the of poor quality of frame of video, in the time of need to refreshing, report testing result to media gateway controlling equipment, after receiving media gateway controlling equipment and issuing refreshing instruction, frame of video is refreshed.Whole process can the ropy image of fast refresh.
Wherein, described flush condition is specially:
The data loss rate of frame of video surpasses the first predetermined threshold value; Or
The data error rate of frame of video surpasses the second predetermined threshold value; Or
The continual data package dropout rate of frame of video surpasses the 3rd predetermined threshold value.
Satisfy flush condition following two kinds of situations arranged:
＜situation one〉when medium processing device is the IP intelligent terminal
H324M terminal or sip terminal have detected that video requency frame data is lost or mistake, surpass certain degree, the data loss rate that is frame of video surpasses the first predetermined threshold value, or the data error rate of frame of video surpasses the second predetermined threshold value, when causing the video image quality variation, just meet flush condition, should be reported to media gateway controlling equipment.
＜situation two〉when medium processing device is media server or gateway
Medium processing device detects this side continual data package dropout above certain ratio for the RTP of SIP frame, in the time of can judgement can having a strong impact on video image quality, the continual data package dropout rate that is frame of video surpasses the 3rd predetermined threshold value, and also will be reported to media gateway controlling equipment this moment.
When frame of video met flush condition, medium processing device will refresh, and described described frame of video being refreshed according to described refreshing instruction is specially:
According to described refreshing instruction, regenerate last I frame;
Send described I frame to described video terminal.
According to refreshing instruction, again compile a up-to-date I frame and send to video terminal and get final product.
The below describes the process that whole video refreshes in detail, as shown in Figure 4, comprising:
Video of new definition refreshes the detection reported event in MGCP;
Media gateway controlling equipment need to issue video and refresh the detection event to medium processing device when the beginning video call;
When medium processing device detects video quality poor the time, report the video refresh events to media gateway controlling equipment;
Media gateway controlling equipment is received this event, generates a refreshing instruction and is issued to medium processing device by MGCP, and the indication medium processing device refreshes frame of video;
After medium processing device is received the indication of media gateway controlling equipment, again compile a up-to-date I frame and send to video terminal.
The embodiment of the invention also provides a kind of video refreshing apparatus, be used for media gateway controlling equipment, described media gateway controlling equipment communicates by MGCP and a media gateway handles equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing apparatus comprises, as shown in Figure 5:
The first receiver module is used for the video call request of the request call one IP video end of reception one video terminal transmission;
First issues module, is used for issuing carrying described video and refreshing the described video call request of detection event to described medium processing device;
The second receiver module, be used for receiving described medium processing device according to described video call request, for after described video terminal and described IP video end set up video calling, refresh the detection event according to described video, the frame of video between the described video terminal that reports and the described IP video end meets the testing result of flush condition;
Second issues module, is used for generating refreshing instruction according to described testing result and is issued to described medium processing device, so that described medium processing device can refresh described frame of video according to described refreshing instruction.
Wherein, preferably, described MGCP is agreement H.248.
To achieve these goals, the embodiment of the invention also provides a kind of video refreshing apparatus, be used for a medium processing device, described medium processing device communicates by MGCP and a media gateway controlling equipment, and definition one video refreshes the detection reported event in described MGCP;
Described video refreshing apparatus comprises, as shown in Figure 6:
The 3rd receiver module is used for receiving described media gateway controlling equipment when receiving the video call request of the request call one IP video end that a video terminal sends, and what issue carries the described video call request that described video refreshes the detection event;
Video calling is set up module, is used for according to described video call request, for described video terminal and described IP video end are set up video calling;
Detection module is used for refreshing the detection event according to described video, whether the frame of video between described video terminal and the described IP video end is met flush condition detect, and obtains a testing result;
Reporting module, be used for when described testing result indicates described frame of video to meet flush condition, report described testing result to described media gateway controlling equipment, be issued to described medium processing device so that described media gateway controlling equipment can generate refreshing instruction according to described testing result;
The 4th receiver module is used for receiving the described refreshing instruction that described medium processing device issues;
Refresh module is used for according to described refreshing instruction described frame of video being refreshed.
Wherein, preferably, described flush condition is specially:
The data loss rate of frame of video surpasses the first predetermined threshold value; Or
The data error rate of frame of video surpasses the second predetermined threshold value; Or
The continual data package dropout rate of frame of video surpasses the 3rd predetermined threshold value.
Wherein, preferably, described module specifically comprises:
I frame generation module is used for according to described refreshing instruction, regenerates last I frame;
Sending module is used for sending described I frame to described video terminal.
To achieve these goals, the embodiment of the invention also provides a kind of media gateway controlling equipment, comprises the described video refreshing apparatus for media gateway controlling equipment of above-mentioned any one.
To achieve these goals, the embodiment of the invention also provides a kind of medium processing device, comprises the described video refreshing apparatus for medium processing device of above-mentioned any one.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. video refreshing method, be used for media gateway controlling equipment, described media gateway controlling equipment communicates by MGCP and a media gateway handles equipment, it is characterized in that, definition one video refreshes the detection reported event in described MGCP;
Described video refreshing method comprises:
Receive the video call request of the request call one IP video end of video terminal transmission;
Issue and carry described video call request that described video refreshes the detection event to described medium processing device;
Receive described medium processing device according to described video call request, for after described video terminal and described IP video end set up video calling, refresh the detection event according to described video, the frame of video between the described video terminal that reports and the described IP video end meets the testing result of flush condition;
Described medium processing device generates refreshing instruction according to described testing result and is issued to described medium processing device, so that can refresh to described frame of video according to described refreshing instruction.
2. video refreshing method as claimed in claim 1 is characterized in that, described MGCP is agreement H.248.
3. video refreshing method, be used for a medium processing device, described medium processing device communicates by MGCP and a media gateway controlling equipment, it is characterized in that, definition one video refreshes the detection reported event in described MGCP;
Described video refreshing method comprises:
Receive described media gateway controlling equipment when receiving the video call request of the request call one IP video end that a video terminal sends, what issue carries the described video call request that described video refreshes the detection event;
According to described video call request, for described video terminal and described IP video end are set up video calling;
Refresh the detection event according to described video, whether the frame of video between described video terminal and the described IP video end is met flush condition detect, obtain a testing result;
When described testing result indicates described frame of video to meet flush condition, report described testing result to described media gateway controlling equipment, be issued to described medium processing device so that described media gateway controlling equipment can generate refreshing instruction according to described testing result;
Receive the described refreshing instruction that described medium processing device issues;
According to described refreshing instruction described frame of video is refreshed.
4. video refreshing method as claimed in claim 3 is characterized in that, described flush condition is specially:
The data loss rate of frame of video surpasses the first predetermined threshold value; Or
The data error rate of frame of video surpasses the second predetermined threshold value; Or
The continual data package dropout rate of frame of video surpasses the 3rd predetermined threshold value.
5. video refreshing method as claimed in claim 3 is characterized in that, described described frame of video being refreshed according to described refreshing instruction is specially:
According to described refreshing instruction, regenerate last I frame;
Send described I frame to described video terminal.
6. video refreshing apparatus, be used for media gateway controlling equipment, described media gateway controlling equipment communicates by MGCP and a media gateway handles equipment, it is characterized in that, definition one video refreshes the detection reported event in described MGCP;
Described video refreshing apparatus comprises:
The first receiver module is used for the video call request of the request call one IP video end of reception one video terminal transmission;
First issues module, is used for issuing carrying described video and refreshing the described video call request of detection event to described medium processing device;
The second receiver module, be used for receiving described medium processing device according to described video call request, for after described video terminal and described IP video end set up video calling, refresh the detection event according to described video, the frame of video between the described video terminal that reports and the described IP video end meets the testing result of flush condition;
Second issues module, is used for generating refreshing instruction according to described testing result and is issued to described medium processing device, so that described medium processing device can refresh described frame of video according to described refreshing instruction.
7. video refreshing apparatus as claimed in claim 6 is characterized in that, described MGCP is agreement H.248.
8. video refreshing apparatus, be used for a medium processing device, described medium processing device communicates by MGCP and a media gateway controlling equipment, it is characterized in that, definition one video refreshes the detection reported event in described MGCP;
Described video refreshing apparatus comprises:
The 3rd receiver module is used for receiving described media gateway controlling equipment when receiving the video call request of the request call one IP video end that a video terminal sends, and what issue carries the described video call request that described video refreshes the detection event;
Video calling is set up module, is used for according to described video call request, for described video terminal and described IP video end are set up video calling;
Detection module is used for refreshing the detection event according to described video, whether the frame of video between described video terminal and the described IP video end is met flush condition detect, and obtains a testing result;
Reporting module, be used for when described testing result indicates described frame of video to meet flush condition, report described testing result to described media gateway controlling equipment, be issued to described medium processing device so that described media gateway controlling equipment can generate refreshing instruction according to described testing result;
The 4th receiver module is used for receiving the described refreshing instruction that described medium processing device issues;
Refresh module is used for according to described refreshing instruction described frame of video being refreshed.
9. video refreshing apparatus as claimed in claim 8 is characterized in that, described flush condition is specially:
The data loss rate of frame of video surpasses the first predetermined threshold value; Or
The data error rate of frame of video surpasses the second predetermined threshold value; Or
The continual data package dropout rate of frame of video surpasses the 3rd predetermined threshold value.
10. video refreshing apparatus as claimed in claim 8 is characterized in that, described module specifically comprises:
I frame generation module is used for according to described refreshing instruction, regenerates last I frame;
Sending module is used for sending described I frame to described video terminal.
11. a media gateway controlling equipment is characterized in that, comprises claim 6 or 7 described video refreshing apparatus.
12. a medium processing device is characterized in that, comprises the described video refreshing apparatus of claim 8 to 10 any one.
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| CN2012105783371A CN103051860A (en) | 2012-12-27 | 2012-12-27 | Video refreshing method, device, media gateway control equipment and media processing equipment |
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| CN2012105783371A CN103051860A (en) | 2012-12-27 | 2012-12-27 | Video refreshing method, device, media gateway control equipment and media processing equipment |
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