CN103533386A - Live broadcasting control method and anchor equipment - Google Patents

Live broadcasting control method and anchor equipment Download PDF

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Publication number
CN103533386A
CN103533386A CN201310495764.8A CN201310495764A CN103533386A CN 103533386 A CN103533386 A CN 103533386A CN 201310495764 A CN201310495764 A CN 201310495764A CN 103533386 A CN103533386 A CN 103533386A
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CN
China
Prior art keywords
code check
live data
current
available
status transmission
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Pending
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CN201310495764.8A
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Chinese (zh)
Inventor
胡兴华
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Tencent Technology Shenzhen Co Ltd
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Tencent Technology Shenzhen Co Ltd
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Application filed by Tencent Technology Shenzhen Co Ltd filed Critical Tencent Technology Shenzhen Co Ltd
Priority to CN201310495764.8A priority Critical patent/CN103533386A/en
Publication of CN103533386A publication Critical patent/CN103533386A/en
Priority to PCT/CN2014/088884 priority patent/WO2015058656A1/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2408—Monitoring of the upstream path of the transmission network, e.g. client requests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/218—Source of audio or video content, e.g. local disk arrays
    • H04N21/2187—Live feed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities

Abstract

The embodiment of the invention discloses a live broadcasting control method and anchor equipment. The method needing to be realized comprises the steps of collecting live broadcasting data, coding and sending to a server; in the process of sending the coded live broadcasting data, acquiring the transmission condition of the live broadcasting data and determining the current usable code rate according to the transmission condition of the live broadcasting data; coding the live broadcasting data depending on the usable code rate and sending to the server. The transmission condition of the live broadcasting data is acquired in the process that the live broadcasting data is coded and sent to the server, the current usable code rate is determined, and then the live broadcasting data is coded by using the current usable code rate, so the transmission smoothness of the live broadcasting data can be ensured, the code rate adaptive to the possibly consistently changed network environment can be obtained in the live broadcasting process, the live broadcasting can be realized by better code rates and a better live broadcasting effect can be obtained.

Description

, and main broadcaster's equipment
Technical field
The present invention relates to field of computer technology, particularly a kind of live-broadcast control method, and main broadcaster equipment.
Background technology
The live transfer of data that refers to sensu lato various real-times that this specification is alleged, the data of transmission can be voice data, video flowing etc.Take net cast as example, and net cast scheme is as follows: main broadcaster's equipment gathers local video and completes after coding, and the video flowing after coding is uploaded to video server; Video server is handed down to subscriber equipment by video flowing; Subscriber equipment is decoded to the video flowing receiving, then display video picture.
In live process, live effect can be subject to the impact of several factors, such as live upstream and downstream bandwidth, network jitter etc.
Network jitter is QOS(Quality of Service, service quality) control a conventional concept, its meaning refers to the intensity of variation of packetization delay.If it is congested that network occurs, queueing delay will affect delay end to end, and cause the packetization delay transmitted by same connection different, and shake, and be used for exactly describing the degree of such delay variation.Therefore, shake will be an important parameter for the transmission of real-time, such as: VOIP(Voice over Internet Protocol, IP phone), video etc.For the problem of solving network jitter, conventionally can adopt following scheme at present:
1, the thread of joining the team of the dithering cache pointer alignment of packet receiving terminal receives packet, after the packet receiving is sorted, the packet receiving is inserted to the relevant position of dithering cache pointer alignment.
2, group thread timer that goes out of dithering cache pointer alignment triggers out group thread with certain hour interval, goes out the packet that group thread judges dithering cache pointer alignment team head and whether should when current triggering, carve team, if so, these data is contracted out to team.
3, according to the magnitude relationship of the tail of the queue packet in dithering cache pointer alignment and team's packet difference of time stamp and the current dithering cache degree of depth, and according to packet the relation between the cache-time in dithering cache pointer alignment and the minimum amount of delay of the data cached bag of this dithering cache pointer alignment, increase or dwindle the operation of the current dithering cache degree of depth.
When guaranteeing that network shake occurs causes bandwidth very low, there will not be packet loss, thereby guarantee live fluency.The scheme adopting is at present that main broadcaster uploads code check and is set to a lower level.Lower code check can cause the situations such as live effect is poor, and for example video pictures is fuzzy, aphthenxia.
Summary of the invention
The embodiment of the present invention provides a kind of live-broadcast control method, and main broadcaster's equipment, for guaranteeing, under the prerequisite of live fluency, to improve live effect.
, comprising:
Gather live data and encode and send to server;
In the process of the live data after sending coding, obtain the status transmission of live data, and determine current available code check according to the status transmission of described live data;
According to described available code check, live data is encoded and send to server.
An equipment, comprising:
Collecting unit, for gathering live data;
Coding unit, for the live data coding that described collecting unit is gathered; The available code check of determining according to code check determining unit is encoded to live data;
Transmitting element, sends to server for the live data that described coding unit coding is obtained;
Transmission acquiring unit, for send the process of the live data after coding at described transmitting element, obtains the status transmission of live data;
Code check determining unit, the status transmission of the live data of obtaining for the described transmission acquiring unit of foundation is determined current available code check.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages: live data coding is sent in server process, obtain the status transmission of live data, and definite current available code check, re-using current available code check encodes to live data, can guarantee like this smoothness of live data transmission, the code check that the network environment that can also obtain in live process and may constantly change adapts, thereby can realize with higher code check lively, obtain good live effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is embodiment of the present invention method flow schematic diagram;
Fig. 2 is embodiment of the present invention method flow schematic diagram;
Fig. 3 is embodiment of the present invention main broadcaster device structure schematic diagram;
Fig. 4 is embodiment of the present invention main broadcaster device structure schematic diagram;
Fig. 5 is embodiment of the present invention terminal structure schematic diagram.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of live-broadcast control method, as shown in Figure 1, comprising:
101: gather live data and also encode and send to server;
More than gather live data and encode and send in server, when main broadcaster's terminal is started shooting first, adopting which kind of code check to carry out code book inventive embodiments can limit, this is because the technical scheme that the embodiment of the present invention adopts can be adjusted code check, rather than adopts cbr (constant bit rate).But, if adopt herein the code check differing greatly with current comparatively adaptive code check to encode, effect can be worse than and adopt first the code check that differs less with current comparatively adaptive code check to encode, therefore the embodiment of the present invention provides following preferred implementation, but it should be noted that following scheme is not unique implementation of the embodiment of the present invention, it is only giving an example of preferred implementation, should not be construed as the uniqueness of the embodiment of the present invention is limited, specific as follows: alternatively, above-mentioned collection live data coding send to server to comprise: gather live data, the code check that uses acquiescence code check or last time used is encoded to above-mentioned live data, then the live data after coding is sent to server.
102: in the process of the live data after sending coding, obtain the status transmission of live data, and determine current available code check according to the status transmission of above-mentioned live data;
In the present embodiment, what obtain is the status transmission that sends the live data after coding, so this status transmission is the transmitting uplink data situation of main broadcaster's equipment, this step can determine can with code check instruct the coding of follow-up live data.Because the transmitting uplink data situation of main broadcaster's equipment may change, therefore current definite available code check may not mate with the transmitting uplink data situation of follow-up a period of time, the current definite available code check of possibility is too high, also may be too low, for this situation embodiment of the present invention, provided following solution, specific as follows: take the scheduled time as the cycle carries out: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.
The time interval in each cycle in above embodiment, available presetting adopts the mode of configuration to be configured in the actuating logic of equipment, the value that the concrete time interval adopts, those skilled in the art can carry out free setting according to concrete needs and network condition, this time interval arranges to such an extent that shortlyer can determine that available code check and current network state institute is adaptive more accurately, this time interval arranges to such an extent that longlyer can take fewer resource for carrying out determining of available code check, those skilled in the art can carry out balance setting according to needs, therefore the embodiment of the present invention can limit.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, in embodiments of the present invention, can directly determine available code check by transmission state, also can obtain other intermediate quantity and determine available code check according to intermediate quantity according to transmission state, below provided giving an example of one of them implementation, specific as follows: alternatively, the status transmission of the above-mentioned live data of above-mentioned foundation determines that current available code check comprises:
Status transmission according to above-mentioned live data is determined current available bandwidth, according to current available bandwidth, determines available code check.
In above embodiment, what adopt is to determine that by transmission state available bandwidth is as the mode of intermediate quantity, in fact corresponding different transmission state adopts different intermediate quantities also can realize, and therefore first definite available bandwidth determines that according to available bandwidth the implementation of available code check should not be construed as the uniqueness restriction to the embodiment of the present invention again.
In embodiments of the present invention, can adjust available code check, the embodiment of the present invention gives the step of concrete adjustment, as follows: alternatively, the status transmission of the above-mentioned live data of above-mentioned foundation determines that current available code check comprises: if the status transmission of above-mentioned live data is worse than the first preassigned, adjust available code check to below current use code check; If the status transmission of above-mentioned live data is better than the second preassigned, adjust available code check on current use code check.
If in embodiments of the present invention, take the scheduled time as the cycle carries out: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.So, the step of above adjustment is carried out being also in the cycle of being scheduled to.Therefore, in the process that live data sends, the code check that main broadcaster's device coding is used will change dynamically, and mates with the state of current up live data transmission, can guarantee that live data can smooth transmit, can obtain again higher code check and reach good live effect.
In embodiments of the present invention, no matter be periodically to carry out and obtain available code check or obtain available code check by centralized disposable execution, all can be with there being certain standard to determine that whether current code check is more excellent, it is as follows that the embodiment of the present invention has provided following scheme: alternatively, the available code check of above-mentioned adjustment comprises on current use code check:
Improve current available code check, make available code check reach the highest code check occurring before network jitter.
Above embodiment provides is that to take the critical of network jitter be standard, under this standard, obtain the highest code check as preferred version, in fact both available setting and the low predetermined value of this highest code check were as standard, also can adopt other standards to determine preferred available code check, for adopting which kind of standard, determine preferred available code check, be more than only a preferred scheme for example, should not be construed as the uniqueness of the embodiment of the present invention is limited.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, it is as follows that the following embodiment of the present invention has provided one of them preferred implementation: alternatively, the above-mentioned status transmission that obtains above-mentioned live data comprises: obtain the packet loss of above-mentioned live data in transmitting procedure.
In above embodiment, adopt packet loss to represent the quality of current live data transmission, packet loss can be that server initiatively sends, by the passive reception of main broadcaster's equipment; Packet loss can be also will not limiting this embodiment of the present invention of initiatively being added up by main broadcaster's equipment.
103: according to above-mentioned available code check, live data is encoded and send to server.
The embodiment of the present invention, live data coding is sent in server process, obtain the status transmission of live data, and definite current available code check, re-use current available code check live data is encoded, can guarantee like this smoothness of live data transmission, can also in live process, obtain the code check adapting with the network environment that may constantly change, thereby can realize with higher code check lively, obtain good live effect.
Following examples will be described in detail the scheme of the embodiment of the present invention with net cast.The embodiment of the present invention provides the upstream bandwidth based on main broadcaster's equipment to adjust the scheme of code check, can automatically adjust according to the variation of main broadcaster's equipment upstream bandwidth the method for video code rate.When video server finds that packet loss appears in main broadcaster's uploaded videos, this packet loss information is fed back to the client of main broadcaster's equipment, the client of main broadcaster's equipment is calculated current uplink network bandwidth according to the situation of packet loss, then notify client coding module according to encoding with the code check of current uplink network bandwidth match, when a period of time, do not occur after packet loss, more slowly switch back the video flowing of high code check.
Due to the alleged live transfer of data that refers to sensu lato various real-times of the embodiment of the present invention, the data of transmission can be voice data, video flowing etc.The transfer of data of real-time can be with being VOIP(Voice over Internet Protocol, IP phone), the various applied environments such as video.The present embodiment should not be construed as an example the uniqueness of the alleged live data of the embodiment of the present invention is limited with transmission of video.
201: main broadcaster's equipment gathers live data, encode and send to video server, video server to forward live data to subscriber equipment.
202: when video server finds that packet loss appears in main broadcaster's equipment uploaded videos, packet loss data analysis is obtained to packet loss, after then arranging, packet loss is sent to the client of main broadcaster's equipment.
203: the packet loss data that the client of main broadcaster's equipment reports video server are carried out computational analysis, determine current up available bandwidth.
204: the client of main broadcaster's equipment is notified its coding module, the available bandwidth that the code check of adjustment Video coding calculates to step 203.
205: if determine, current code check laser propagation effect is better, for example: the client of main broadcaster's equipment does not receive after a period of time that video server feedback has packet loss data or packet loss lower than predetermined value.
206: the client of main broadcaster's equipment is notified its coding module, heighten the code check of Video coding.
Above-mentioned steps 205 and 206 will repeat, and periodically repeated execution even, until adjust to the highest code check before network jitter by video code rate.
The upstream bandwidth of the embodiment of the present invention based on main broadcaster's equipment adjusted code check and had following effect: 1, and anti-network jitter, even under the very poor situation of network condition, still can let user experiencing smooth video.2, dynamically adjust code check, guarantee, under the good situation of network quality, can let user experiencing high-quality video.
The embodiment of the present invention also provides a kind of main broadcaster's equipment, as shown in Figure 3, comprising:
Collecting unit 301, for gathering live data;
Coding unit 302, for the live data coding that above-mentioned collecting unit 301 is gathered; The available code check of determining according to code check determining unit 305 is encoded to live data;
Transmitting element 303, sends to server for the live data that above-mentioned coding unit 302 codings are obtained;
Transmission acquiring unit 304, for send the process of the live data after coding at above-mentioned transmitting element 303, obtains the status transmission of live data;
Code check determining unit 305, the status transmission of the live data of obtaining for the above-mentioned transmission acquiring unit 304 of foundation is determined current available code check.
The embodiment of the present invention, live data coding is sent in server process, obtain the status transmission of live data, and definite current available code check, re-use current available code check live data is encoded, can guarantee like this smoothness of live data transmission, can also in live process, obtain the code check adapting with the network environment that may constantly change, thereby can realize with higher code check lively, obtain good live effect.
In the present embodiment, what obtain is the status transmission that sends the live data after coding, so this status transmission is the transmitting uplink data situation of main broadcaster's equipment, this step can determine can with code check instruct the coding of follow-up live data.Because the transmitting uplink data situation of main broadcaster's equipment may change, therefore current definite available code check may not mate with the transmitting uplink data situation of follow-up a period of time, the current definite available code check of possibility is too high, also may be too low, for this situation embodiment of the present invention, provided following solution, specific as follows: alternatively, above-mentioned code check determining unit 305, carries out according to the status transmission of above-mentioned live data and determines current available code check for take the scheduled time as the cycle.
The time interval in each cycle in above embodiment, available presetting adopts the mode of configuration to be configured in the actuating logic of equipment, the value that the concrete time interval adopts, those skilled in the art can carry out free setting according to concrete needs and network condition, this time interval arranges to such an extent that shortlyer can determine that available code check and current network state institute is adaptive more accurately, this time interval arranges to such an extent that longlyer can take fewer resource for carrying out determining of available code check, those skilled in the art can carry out balance setting according to needs, therefore the embodiment of the present invention can limit.
More than gather live data and encode and send in server, when main broadcaster's terminal is started shooting first, adopting which kind of code check to carry out code book inventive embodiments can limit, this is because the technical scheme that the embodiment of the present invention adopts can be adjusted code check, rather than adopts cbr (constant bit rate).But, if adopt herein the code check differing greatly with current comparatively adaptive code check to encode, effect can be worse than and adopt first the code check that differs less with current comparatively adaptive code check to encode, therefore the embodiment of the present invention provides following preferred implementation, but it should be noted that following scheme is not unique implementation of the embodiment of the present invention, it is only giving an example of preferred implementation, should not be construed as the uniqueness of the embodiment of the present invention is limited, specific as follows: alternatively, above-mentioned coding unit 302, for the live data coding that above-mentioned collecting unit 301 is gathered, comprise: use the code check of giving tacit consent to code check or last time using to encode to above-mentioned live data.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, in embodiments of the present invention, can directly determine available code check by transmission state, also can obtain other intermediate quantity and determine available code check according to intermediate quantity according to transmission state, below provided giving an example of one of them implementation, specific as follows: alternatively, above-mentioned code check determining unit 305, for the status transmission according to above-mentioned live data, determine current available bandwidth, according to current available bandwidth, determine available code check.
In above embodiment, what adopt is to determine that by transmission state available bandwidth is as the mode of intermediate quantity, in fact corresponding different transmission state adopts different intermediate quantities also can realize, and therefore first definite available bandwidth determines that according to available bandwidth the implementation of available code check should not be construed as the uniqueness restriction to the embodiment of the present invention again.
In embodiments of the present invention, can adjust available code check, the embodiment of the present invention gives the step of concrete adjustment, as follows: alternatively, above-mentioned code check determining unit 305, if be worse than the first preassigned for the status transmission of above-mentioned live data, adjusts available code check to below current use code check; If the status transmission of above-mentioned live data is better than the second preassigned, adjust available code check on current use code check.
If in embodiments of the present invention, take the scheduled time as the cycle carries out: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.So, the step of above adjustment is carried out being also in the cycle of being scheduled to.Therefore, in the process that live data sends, the code check that main broadcaster's device coding is used will change dynamically, and mates with the state of current up live data transmission, can guarantee that live data can smooth transmit, can obtain again higher code check and reach good live effect.
In embodiments of the present invention, no matter be periodically to carry out and obtain available code check or obtain available code check by centralized disposable execution, all can be with there being certain standard to determine that whether current code check is more excellent, it is as follows that the embodiment of the present invention has provided following scheme: alternatively, above-mentioned code check determining unit 305, be used for adjusting available code check comprises on current use code check: improve current available code check, make available code check reach the highest code check occurring before network jitter.
Above embodiment provides is that to take the critical of network jitter be standard, under this standard, obtain the highest code check as preferred version, in fact both available setting and the low predetermined value of this highest code check were as standard, also can adopt other standards to determine preferred available code check, for adopting which kind of standard, determine preferred available code check, be more than only a preferred scheme for example, should not be construed as the uniqueness of the embodiment of the present invention is limited.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, it is as follows that the following embodiment of the present invention has provided one of them preferred implementation: alternatively, above-mentioned transmission acquiring unit 304, for obtaining above-mentioned live data at the packet loss of transmitting procedure.
In above embodiment, adopt packet loss to represent the quality of current live data transmission, packet loss can be that server initiatively sends, by the passive reception of main broadcaster's equipment; Packet loss can be also will not limiting this embodiment of the present invention of initiatively being added up by main broadcaster's equipment.
The embodiment of the present invention also provides another kind of main broadcaster's equipment, as shown in Figure 4, comprising: receiver 401, reflector 402, processor 403 and memory 404;
Wherein, above-mentioned processor 403, sends to server for controlling to gather live data and encode; In the process of the live data after sending coding, obtain the status transmission of live data, and determine current available code check according to the status transmission of above-mentioned live data; According to above-mentioned available code check, live data is encoded and send to server.
The embodiment of the present invention, live data coding is sent in server process, obtain the status transmission of live data, and definite current available code check, re-use current available code check live data is encoded, can guarantee like this smoothness of live data transmission, can also in live process, obtain the code check adapting with the network environment that may constantly change, thereby can realize with higher code check lively, obtain good live effect.
In the present embodiment, what obtain is the status transmission that sends the live data after coding, so this status transmission is the transmitting uplink data situation of main broadcaster's equipment, this step can determine can with code check instruct the coding of follow-up live data.Because the transmitting uplink data situation of main broadcaster's equipment may change, therefore current definite available code check may not mate with the transmitting uplink data situation of follow-up a period of time, the current definite available code check of possibility is too high, also may be too low, for this situation embodiment of the present invention, provided following solution, specific as follows: alternatively, above-mentioned processor 403, for take the execution of the scheduled time as cycle: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.
The time interval in each cycle in above embodiment, available presetting adopts the mode of configuration to be configured in the actuating logic of equipment, the value that the concrete time interval adopts, those skilled in the art can carry out free setting according to concrete needs and network condition, this time interval arranges to such an extent that shortlyer can determine that available code check and current network state institute is adaptive more accurately, this time interval arranges to such an extent that longlyer can take fewer resource for carrying out determining of available code check, those skilled in the art can carry out balance setting according to needs, therefore the embodiment of the present invention can limit.
More than gather live data and encode and send in server, when main broadcaster's terminal is started shooting first, adopting which kind of code check to carry out code book inventive embodiments can limit, this is because the technical scheme that the embodiment of the present invention adopts can be adjusted code check, rather than adopts cbr (constant bit rate).But, if adopt herein the code check differing greatly with current comparatively adaptive code check to encode, effect can be worse than and adopt first the code check that differs less with current comparatively adaptive code check to encode, therefore the embodiment of the present invention provides following preferred implementation, but it should be noted that following scheme is not unique implementation of the embodiment of the present invention, it is only giving an example of preferred implementation, should not be construed as the uniqueness of the embodiment of the present invention is limited, specific as follows: alternatively, above-mentioned processor 403, being used for controlling gathering live data and encoding sends to server to comprise: control and gather live data, the code check that uses acquiescence code check or last time used is encoded to above-mentioned live data, then the live data after coding is sent to server.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, in embodiments of the present invention, can directly determine available code check by transmission state, also can obtain other intermediate quantity and determine available code check according to intermediate quantity according to transmission state, below provided giving an example of one of them implementation, specific as follows: alternatively, above-mentioned processor 403, for the status transmission according to above-mentioned live data, determine that current available code check comprises: the status transmission according to above-mentioned live data is determined current available bandwidth, according to current available bandwidth, determine available code check.
In above embodiment, what adopt is to determine that by transmission state available bandwidth is as the mode of intermediate quantity, in fact corresponding different transmission state adopts different intermediate quantities also can realize, and therefore first definite available bandwidth determines that according to available bandwidth the implementation of available code check should not be construed as the uniqueness restriction to the embodiment of the present invention again.
In embodiments of the present invention, can adjust available code check, the embodiment of the present invention gives the step of concrete adjustment, as follows: alternatively, above-mentioned processor 403, for the status transmission according to above-mentioned live data, determine that current available code check comprises: if the status transmission of above-mentioned live data is worse than the first preassigned, adjust available code check to below current use code check; If the status transmission of above-mentioned live data is better than the second preassigned, adjust available code check on current use code check.
If in embodiments of the present invention, take the scheduled time as the cycle carries out: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.So, the step of above adjustment is carried out being also in the cycle of being scheduled to.Therefore, in the process that live data sends, the code check that main broadcaster's device coding is used will change dynamically, and mates with the state of current up live data transmission, can guarantee that live data can smooth transmit, can obtain again higher code check and reach good live effect.
In embodiments of the present invention, no matter be periodically to carry out and obtain available code check or obtain available code check by centralized disposable execution, all can be with there being certain standard to determine that whether current code check is more excellent, it is as follows that the embodiment of the present invention has provided following scheme: alternatively, above-mentioned processor 403, be used for adjusting available code check comprises on current use code check: improve current available code check, make available code check reach the highest code check occurring before network jitter.
Above embodiment provides is that to take the critical of network jitter be standard, under this standard, obtain the highest code check as preferred version, in fact both available setting and the low predetermined value of this highest code check were as standard, also can adopt other standards to determine preferred available code check, for adopting which kind of standard, determine preferred available code check, be more than only a preferred scheme for example, should not be construed as the uniqueness of the embodiment of the present invention is limited.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, it is as follows that the following embodiment of the present invention has provided one of them preferred implementation: alternatively, above-mentioned processor 403, comprises for obtaining the status transmission of above-mentioned live data: obtain above-mentioned live data at the packet loss of transmitting procedure.
In above embodiment, adopt packet loss to represent the quality of current live data transmission, packet loss can be that server initiatively sends, by the passive reception of main broadcaster's equipment; Packet loss can be also will not limiting this embodiment of the present invention of initiatively being added up by main broadcaster's equipment.
The embodiment of the present invention also provides a kind of terminal, as main broadcaster's equipment, uses, and as shown in Figure 5, for convenience of explanation, only shows the part relevant to the embodiment of the present invention, and concrete ins and outs do not disclose, and please refer to embodiment of the present invention method part.This terminal can be for comprising mobile phone, panel computer, PDA(Personal Digital Assistant, personal digital assistant), POS(Point of Sales, point-of-sale terminal), the terminal equipment arbitrarily such as vehicle-mounted computer, take terminal as mobile phone be example:
Shown in Fig. 5 is the block diagram of the part-structure of the mobile phone that the terminal that provides to the embodiment of the present invention is relevant.With reference to figure 5, mobile phone comprises: radio frequency (Radio Frequency, RF) parts such as circuit 510, memory 520, input unit 530, display unit 540, transducer 550, voicefrequency circuit 560, Wireless Fidelity (wireless fidelity, WiFi) module 570, processor 580 and power supply 590.It will be understood by those skilled in the art that the handset structure shown in Fig. 5 does not form the restriction to mobile phone, can comprise the parts more more or less than diagram, or combine some parts, or different parts are arranged.
Below in conjunction with Fig. 5, each component parts of mobile phone is carried out to concrete introduction:
RF circuit 510 can be used for receiving and sending messages or communication process in, the reception of signal and transmission, especially, after the downlink information of base station is received, process to processor 580; In addition, the up data of design are sent to base station.Conventionally, RF circuit includes but not limited to antenna, at least one amplifier, transceiver, coupler, low noise amplifier (Low Noise Amplifier, LNA), duplexer etc.In addition, RF circuit 50 can also be by radio communication and network and other devices communicatings.Above-mentioned radio communication can be used arbitrary communication standard or agreement, include but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), code division multiple access (Code Division Multiple Access, CDMA), Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), Email, Short Message Service (Short Messaging Service, SMS) etc.
Memory 520 can be used for storing software program and module, and processor 580 is stored in software program and the module of memory 520 by operation, thereby carries out various function application and the data processing of mobile phone.Memory 520 can mainly comprise storage program district and storage data field, wherein, and the application program (such as sound-playing function, image player function etc.) that storage program district can storage operation system, at least one function is required etc.; The data (such as voice data, phone directory etc.) that create according to the use of mobile phone etc. can be stored in storage data field.In addition, memory 520 can comprise high-speed random access memory, can also comprise nonvolatile memory, for example at least one disk memory, flush memory device or other volatile solid-state parts.
Input unit 530 can be used for receiving numeral or the character information of input, and generation arranges with the user of mobile phone 500 and function is controlled relevant key signals input.Particularly, input unit 530 can comprise contact panel 531 and other input equipments 532.Contact panel 531, also referred to as touch-screen, can collect user or near touch operation (using any applicable object or near the operations of annex on contact panel 531 or contact panel 531 such as finger, stylus such as user) thereon, and drive corresponding jockey according to predefined formula.Optionally, contact panel 531 can comprise touch detecting apparatus and two parts of touch controller.Wherein, touch detecting apparatus detects user's touch orientation, and detects the signal that touch operation is brought, and sends signal to touch controller; Touch controller receives touch information from touch detecting apparatus, and converts it to contact coordinate, then gives processor 580, and the order that energy receiving processor 580 is sent is also carried out.In addition, can adopt the polytypes such as resistance-type, condenser type, infrared ray and surface acoustic wave to realize contact panel 531.Except contact panel 531, input unit 530 can also comprise other input equipments 532.Particularly, other input equipments 532 can include but not limited to one or more in physical keyboard, function key (controlling button, switch key etc. such as volume), trace ball, mouse, action bars etc.
Display unit 540 can be used for showing the information inputted by user or the various menus of the information that offers user and mobile phone.Display unit 540 can comprise display floater 541, optionally, can adopt the forms such as liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) to configure display floater 541.Further, contact panel 531 can cover display floater 541, when contact panel 531 detect thereon or near touch operation after, send processor 580 to determine the type of touch event, corresponding vision output is provided according to the type of touch event with preprocessor 580 on display floater 541.Although in Fig. 5, contact panel 531 and display floater 541 be as two independently parts realize input and the input function of mobile phone, but in certain embodiments, can contact panel 531 and display floater 541 is integrated and realize the input and output function of mobile phone.
Mobile phone 500 also can comprise at least one transducer 550, such as optical sensor, motion sensor and other transducers.Particularly, optical sensor can comprise ambient light sensor and proximity transducer, and wherein, ambient light sensor can regulate according to the light and shade of ambient light the brightness of display floater 541, proximity transducer can, when mobile phone moves in one's ear, cut out display floater 541 and/or backlight.A kind of as motion sensor; accelerometer sensor can detect the size of the acceleration that (is generally three axles) in all directions; when static, can detect size and the direction of gravity, can be used for identifying application (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, knock) of mobile phone attitude etc.; As for mobile phone other transducers such as configurable gyroscope, barometer, hygrometer, thermometer, infrared ray sensor also, do not repeat them here.
Voicefrequency circuit 560, loud speaker 561, microphone 562 can provide the audio interface between user and mobile phone.Voicefrequency circuit 560 can be transferred to loud speaker 561 by the signal of telecommunication after the voice data conversion receiving, and is converted to voice signal exports by loud speaker 561; On the other hand, microphone 562 is converted to the signal of telecommunication by the voice signal of collection, after being received by voicefrequency circuit 560, be converted to voice data, after again voice data output processor 580 being processed, through RF circuit 510, to send to such as another mobile phone, or export voice data to memory 520 to further process.
WiFi belongs to short range wireless transmission technology, mobile phone by WiFi module 570 can help that user sends and receive e-mail, browsing page and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 5 shows WiFi module 570, be understandable that, it does not belong to must forming of mobile phone 500, completely can be as required in not changing the essential scope of invention and omit.
Processor 580 is control centres of mobile phone, utilize the various piece of various interface and the whole mobile phone of connection, by moving or carry out software program and/or the module being stored in memory 520, and call the data that are stored in memory 520, carry out various functions and the deal with data of mobile phone, thereby mobile phone is carried out to integral monitoring.Optionally, processor 580 can comprise one or more processing units; Preferably, processor 580 can integrated application processor and modem processor, and wherein, application processor is mainly processed operating system, user interface and application program etc., and modem processor is mainly processed radio communication.Be understandable that, above-mentioned modem processor also can not be integrated in processor 580.
Mobile phone 500 also comprises that the power supply 590(powering to all parts is such as battery), preferably, power supply can be connected with processor 580 logics by power-supply management system, thereby realizes the functions such as management charging, electric discharge and power managed by power-supply management system.
Although not shown, mobile phone 500 can also comprise camera, bluetooth module etc., does not repeat them here.
In embodiments of the present invention, the included processor 580 of this terminal also has following functions:
Wherein, above-mentioned processor 580, sends to server for controlling to gather live data and encode; In the process of the live data after sending coding, obtain the status transmission of live data, and determine current available code check according to the status transmission of above-mentioned live data; According to above-mentioned available code check, live data is encoded and send to server.
The embodiment of the present invention, live data coding is sent in server process, obtain the status transmission of live data, and definite current available code check, re-use current available code check live data is encoded, can guarantee like this smoothness of live data transmission, can also in live process, obtain the code check adapting with the network environment that may constantly change, thereby can realize with higher code check lively, obtain good live effect.
In the present embodiment, what obtain is the status transmission that sends the live data after coding, so this status transmission is the transmitting uplink data situation of main broadcaster's equipment, this step can determine can with code check instruct the coding of follow-up live data.Because the transmitting uplink data situation of main broadcaster's equipment may change, therefore current definite available code check may not mate with the transmitting uplink data situation of follow-up a period of time, the current definite available code check of possibility is too high, also may be too low, for this situation embodiment of the present invention, provided following solution, specific as follows: alternatively, above-mentioned processor 580, for take the execution of the scheduled time as cycle: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.
The time interval in each cycle in above embodiment, available presetting adopts the mode of configuration to be configured in the actuating logic of equipment, the value that the concrete time interval adopts, those skilled in the art can carry out free setting according to concrete needs and network condition, this time interval arranges to such an extent that shortlyer can determine that available code check and current network state institute is adaptive more accurately, this time interval arranges to such an extent that longlyer can take fewer resource for carrying out determining of available code check, those skilled in the art can carry out balance setting according to needs, therefore the embodiment of the present invention can limit.
More than gather live data and encode and send in server, when main broadcaster's terminal is started shooting first, adopting which kind of code check to carry out code book inventive embodiments can limit, this is because the technical scheme that the embodiment of the present invention adopts can be adjusted code check, rather than adopts cbr (constant bit rate).But, if adopt herein the code check differing greatly with current comparatively adaptive code check to encode, effect can be worse than and adopt first the code check that differs less with current comparatively adaptive code check to encode, therefore the embodiment of the present invention provides following preferred implementation, but it should be noted that following scheme is not unique implementation of the embodiment of the present invention, it is only giving an example of preferred implementation, should not be construed as the uniqueness of the embodiment of the present invention is limited, specific as follows: alternatively, above-mentioned processor 580, being used for controlling gathering live data and encoding sends to server to comprise: control and gather live data, the code check that uses acquiescence code check or last time used is encoded to above-mentioned live data, then the live data after coding is sent to server.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, in embodiments of the present invention, can directly determine available code check by transmission state, also can obtain other intermediate quantity and determine available code check according to intermediate quantity according to transmission state, below provided giving an example of one of them implementation, specific as follows: alternatively, above-mentioned processor 580, for the status transmission according to above-mentioned live data, determine that current available code check comprises: the status transmission according to above-mentioned live data is determined current available bandwidth, according to current available bandwidth, determine available code check.
In above embodiment, what adopt is to determine that by transmission state available bandwidth is as the mode of intermediate quantity, in fact corresponding different transmission state adopts different intermediate quantities also can realize, and therefore first definite available bandwidth determines that according to available bandwidth the implementation of available code check should not be construed as the uniqueness restriction to the embodiment of the present invention again.
In embodiments of the present invention, can adjust available code check, the embodiment of the present invention gives the step of concrete adjustment, as follows: alternatively, above-mentioned processor 580, for the status transmission according to above-mentioned live data, determine that current available code check comprises: if the status transmission of above-mentioned live data is worse than the first preassigned, adjust available code check to below current use code check; If the status transmission of above-mentioned live data is better than the second preassigned, adjust available code check on current use code check.
If in embodiments of the present invention, take the scheduled time as the cycle carries out: the status transmission of the above-mentioned live data of above-mentioned foundation is determined current available code check.So, the step of above adjustment is carried out being also in the cycle of being scheduled to.Therefore, in the process that live data sends, the code check that main broadcaster's device coding is used will change dynamically, and mates with the state of current up live data transmission, can guarantee that live data can smooth transmit, can obtain again higher code check and reach good live effect.
In embodiments of the present invention, no matter be periodically to carry out and obtain available code check or obtain available code check by centralized disposable execution, all can be with there being certain standard to determine that whether current code check is more excellent, it is as follows that the embodiment of the present invention has provided following scheme: alternatively, above-mentioned processor 580, be used for adjusting available code check comprises on current use code check: improve current available code check, make available code check reach the highest code check occurring before network jitter.
Above embodiment provides is that to take the critical of network jitter be standard, under this standard, obtain the highest code check as preferred version, in fact both available setting and the low predetermined value of this highest code check were as standard, also can adopt other standards to determine preferred available code check, for adopting which kind of standard, determine preferred available code check, be more than only a preferred scheme for example, should not be construed as the uniqueness of the embodiment of the present invention is limited.
Transmission state in the embodiment of the present invention can mean any technical indicator of the quality of current live data transmission, the technical indicator that it will be understood by those skilled in the art that the quality that represents current live data transmission has a lot, it is as follows that the following embodiment of the present invention has provided one of them preferred implementation: alternatively, above-mentioned processor 580, comprises for obtaining the status transmission of above-mentioned live data: obtain above-mentioned live data at the packet loss of transmitting procedure.
In above embodiment, adopt packet loss to represent the quality of current live data transmission, packet loss can be that server initiatively sends, by the passive reception of main broadcaster's equipment; Packet loss can be also will not limiting this embodiment of the present invention of initiatively being added up by main broadcaster's equipment.
It should be noted that, in above-mentioned main broadcaster's apparatus embodiments, included unit is just divided according to function logic, but be not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit also, just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition, one of ordinary skill in the art will appreciate that all or part of step realizing in above-mentioned each embodiment of the method is to come the hardware that instruction is relevant to complete by program, corresponding program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
These are only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the embodiment of the present invention discloses, the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (14)

1. a live-broadcast control method, is characterized in that, comprising:
Gather live data and encode and send to server;
In the process of the live data after sending coding, obtain the status transmission of live data, and determine current available code check according to the status transmission of described live data;
According to described available code check, live data is encoded and send to server.
2. method according to claim 1, is characterized in that,
Take the scheduled time as the cycle carries out: the status transmission of the described live data of described foundation is determined current available code check.
3. method according to claim 1, is characterized in that, described collection live data coding send to server to comprise:
Gather live data, use the code check of acquiescence code check or last time use to encode to described live data, then the live data after coding is sent to server.
4. according to method described in claims 1 to 3 any one, it is characterized in that, the status transmission of the described live data of described foundation determines that current available code check comprises:
Status transmission according to described live data is determined current available bandwidth, according to current available bandwidth, determines available code check.
5. according to method described in claims 1 to 3 any one, it is characterized in that, the status transmission of the described live data of described foundation determines that current available code check comprises:
If the status transmission of described live data is worse than the first preassigned, adjust available code check to below current use code check;
If the status transmission of described live data is better than the second preassigned, adjust available code check on current use code check.
6. method according to claim 5, is characterized in that, the available code check of described adjustment comprises on current use code check:
Improve current available code check, make available code check reach the highest code check occurring before network jitter.
7. according to method described in claims 1 to 3 any one, described in obtain described live data status transmission comprise:
Obtain the packet loss of described live data in transmitting procedure.
8. main broadcaster's equipment, is characterized in that, comprising:
Collecting unit, for gathering live data;
Coding unit, for the live data coding that described collecting unit is gathered; The available code check of determining according to code check determining unit is encoded to live data;
Transmitting element, sends to server for the live data that described coding unit coding is obtained;
Transmission acquiring unit, for send the process of the live data after coding at described transmitting element, obtains the status transmission of live data;
Code check determining unit, the status transmission of the live data of obtaining for the described transmission acquiring unit of foundation is determined current available code check.
9. main broadcaster's equipment according to claim 8, is characterized in that,
Described code check determining unit, carries out according to the status transmission of described live data and determines current available code check for take the scheduled time as the cycle.
10. main broadcaster's equipment according to claim 8, is characterized in that,
Described coding unit, comprises for the live data coding to described collecting unit collection: use the code check of acquiescence code check or last time use to encode to described live data.
Main broadcaster's equipment described in 11. according to Claim 8 to 10 any one, is characterized in that,
Described code check determining unit, determines current available bandwidth for the status transmission according to described live data, according to current available bandwidth, determines available code check.
Main broadcaster's equipment described in 12. according to Claim 8 to 10 any one, is characterized in that,
Described code check determining unit, if be worse than the first preassigned for the status transmission of described live data, adjusts available code check to below current use code check; If the status transmission of described live data is better than the second preassigned, adjust available code check on current use code check.
13. according to main broadcaster's equipment described in claim 12, it is characterized in that,
Described code check determining unit, comprises on current use code check for adjusting available code check: improve current available code check, make available code check reach the highest code check occurring before network jitter.
Main broadcaster's equipment described in 14. according to Claim 8 to 10 any one,
Described transmission acquiring unit, for obtaining described live data at the packet loss of transmitting procedure.
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