CN101035262A - Video information transmission method - Google Patents
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- CN101035262A CN101035262A CN 200710074114 CN200710074114A CN101035262A CN 101035262 A CN101035262 A CN 101035262A CN 200710074114 CN200710074114 CN 200710074114 CN 200710074114 A CN200710074114 A CN 200710074114A CN 101035262 A CN101035262 A CN 101035262A
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Abstract
The invention discloses a video-on-demand (VOD) information stepped transmitting method. When packaging and compressing video, audio and text information, a VOD server respectively packages and compresses video information, audio information and text information in each time unit segment in the playing sequence, where the packages in the same time unit segment have the same time mark and are respectively transmitted in the priority of: text package, audio package and video package, and when an on-demand terminal receives the above packages, the packages with the same time mark are decompressed and synthesized to be played on the on-demand terminal. Thus, an online VOD system has higher intelligent processing ability, and can achieve better on-demand effect on the condition that various servers and network bandwidth resources are not stable, especially applied to cellphone's streaming media.
Description
Technical field
The present invention relates to the Network Transmission field of video information, especially relate to a kind of optimization process method of the video request program information under server resource anxiety and the unsettled situation of network communication situation.
Background technology
Nowadays information network has been popularized each corner with society, and network technology is closely bound up with our work life, by more and more flourishing network technology, we can be easily Anywhere anyone mutual fat file, language and characters chat etc.Human wants and development of technology are always complementary, careless broadband network technology development, the technology of obtaining literal and voice messaging by network is day by day ripe, and obtaining video information by network has been trend of the times, and wherein video request program is exactly a kind of very most important forms.But server and network bandwidth resources that video request program takies are more, when the user who asks program request simultaneously more for a long time, nervous situation will appear in server and network bandwidth resources, will influence the result of broadcast on the program request terminal, can cause the picture of playing on the program request terminal to occur that mosaic phenomenon, voice can't be caught intermittently, text display is not congruent when serious.For solving this phenomenon, all kinds of video compression algorithms and transmission technology emerge in an endless stream, and in the hope of when server and network bandwidth resources are nervous, still can improve the result of broadcast of video frequency request program to greatest extent.But in the present all kinds of video compression algorithms and transmission technology, the video of same reproduction time unit-segment, audio frequency and text message packet are handled together and are transmitted, though processing procedure is fairly simple like this, but the problem that exists is: to video, this three category information of audio frequency and text, occupancy to server and network bandwidth resources is descending, and the difference of resource occupation is very tangible, be video information to the occupancy of resource much larger than audio-frequency information, simultaneously audio-frequency information to the occupancy of resource much larger than text message, and to watching the user of video request program, its importance is again opposite, when the bad user of network environment makes a choice, the user requires the highest to the propagation accuracy rate of text message, basically requiring must be tally in every detail to the text message transmission, and audio-frequency information takes second place, and catches just passable substantially, and to video information, abandon some data and also can accept.Set out based on these current demands, be necessary the data processing technique in the existing video request program is improved, with the result of broadcast of further raising video request program.
Summary of the invention
The objective of the invention is provides a kind of transmission of video information efficiently and the method for playing for the video request program user, institute's information transmitted comprises video information and the corresponding with it audio-frequency information and the text message of video frequency program file, by ordering server above-mentioned information is continued to send to the program request terminal after the packing compression, play behind this packing information compressed decompress(ion) that will receive by the program request terminal, original video information and corresponding with it audio-frequency information and text message are restored, wherein, ordering server is when the above-mentioned information of packing compression, press the video information of playing sequence with each chronomere's fragment, audio-frequency information, separately packing compression of text message, the compressed package of identical chronomere fragment has identical timestamp, and transmission respectively, when these compressed packages of transmission, priority is: text packets, audio pack, video packets, when the program request terminal receives above-mentioned compressed package, compressed package with identical timestamp carries out decompress(ion) and synthetic, plays back on the program request terminal.
In the transmission and broadcast of above-mentioned video information, timestamp with the video compression bag is clue in proper order, video information is handled, promptly with the time sequencing of the video pictures play, ordering server to want data packets for transmission cut apart, pack compression, the coding and the transmission, the program request terminal is also carried out decompress(ion) and merging with corresponding time sequencing to packet after receiving above-mentioned packet, and plays in chronological order.
Further optimization to technique scheme is: when ordering server normal transmission compressed package data, if server processes and network bandwidth resources still have surplus capacity, then continue transmission follow-up text packets and audio pack, make text packets and audio pack than arriving the program request terminal before the video packets corresponding with it, be the server and the network bandwidth do not reach operate at full capacity before, data advanced processing with subsequent treatment, during with server after preventing and network bandwidth anxiety, influence the treatment effeciency of follow-up data; When ordering server transmits follow-up text packets and audio pack, if server processes and network bandwidth resources still have surplus capacity, then continue the follow-up text of transmission, make text packets ratio and its corresponding audio bag arrive the program request terminal before; When ordering server transmits follow-up text packets, if server processes and network bandwidth resources still have surplus capacity, then continue to handle and transmission next round compressed package data, the purpose of this method is to have under the situation more than needed in server processes and network bandwidth resources, in advance packet is sent to the program request terminal as far as possible and keep in, to alleviate the influence to result of broadcast when nervous of subsequent server process and network bandwidth resources.Wherein program request terminal is that clue is play with the video packets timestamp when the compressed package that receives is handled, and the packet that receives is in advance kept in, and call according to the processing demands of video packet data.
Further optimization to technique scheme is: when server processes and network bandwidth resources anxiety, transfer to the program request terminal in advance if be about to the video compression bag data of transmission, then transmission of video compressed package data are only no longer transmitted follow-up audio pack and text packets data; Otherwise video packet data is compressed more at high proportion, to guarantee the normal transmission of audio pack and text packets data.Under limited server and network bandwidth resources condition, can improve the video playback effect to greatest extent like this.
Further optimization to technique scheme is: after video packet data is compressed more at high proportion, the transmission quality of video information drops to minimum level still can't other necessary audio frequency of normal transmission and during the text data bag, remove the transmission of part audio packet data, the program request terminal is when handle packet is play, if find corresponding audio packet data disappearance, then generate corresponding machine talk automatically and play with the text packets data.In general unmusical property video frequency request program, as tell a story, the point broadcasting user will be lower than video and text to the requirement of audio quality, therefore when the network bandwidth and server resource can't satisfy the program request requirement, video transmission is being compressed under the situation of the limit, remove audio transmission again, and the mode that text synthesizes machine talk is realized, to remedy above-mentioned defective by the program request terminal.But the synthetic voice of machine lack lively sense, for further reinforced effects, when ordering server is prepared to remove the part audio packet data, can be divided into a plurality of range sections to the tone and the tone color of the audio packet data removed, and to the last Audiocode of each range section volume, and these Audiocodes are sent to the program request terminal with other packets, the program request terminal can be carried out simulation process to the voice that generate according to Audiocode when carrying out the generation of machine talk.Text and the sounding object information except that text also can be transferred to the program request terminal with code in this way, make the program request terminal when the machine synthetic speech, to reach effect more true to nature, as distinguishing out the different voice effects of male and female students, child's old man different voice effects, the sounding effect of animal cry and other occurring in nature objects etc.
The present invention can bring following beneficial effect:
After adopting technical scheme of the present invention, can improve the intelligent degree of video on-demand system, automatically deal with the problem of video request program request of a large number of users of all kinds of servers that occur at any time and network bandwidth resources instability, burst neatly, obviously improve the result of broadcast of video frequency program under the condition of above-mentioned complexity is disturbed, experience to appreciate preferably with the user.In general, under existing the Internet wired broadband network condition, point-to-point video playback effect still can not be satisfactory, but the total surpassing of human wants, coming the program request video frequency program with mobile phone is again trend of the times, rule of thumb, even in the 3G epoch, online request video frequency program on the mobile phone, its effect still is difficult to surmount current cable broadband the Internet, and utilize the technology of the present invention, can solve above-mentioned technical barrier preferably.
Description of drawings
Fig. 1 is transmission of the video information among the present invention and player method flow chart.
Embodiment
Understand and enforcement the present invention for the ease of those of ordinary skills, the present invention is described in further detail below in conjunction with embodiment.
Certain network on-line teaching system has adopted video information transmission of the present invention and the technical scheme of playing, and for the student provides online interactive foreign language video teaching course, the student can oneself formulate study plan, and by the suitable learning content of network program request.See Fig. 1 in the Figure of description, student's client software of will imparting knowledge to students downloads on the local computing and installs, local computing has just become the video request program terminal, later student's video learned lesson in the program request educational server arbitrarily, the educational server here is exactly a video server of the present invention, educational server is suppressed the courseware document classification in the video teaching course of student's program request contract (mark 1 of seeing Fig. 1), promptly chronomere's fragment (as 10 seconds) of playing with courseware is divided into video with courseware, audio frequency, the packet that text is three types, and, after the compression above-mentioned packet is also sent to student's program request terminal in chronological order for each packet adds identical time mark (timestamp).When each the transmission, the full content that server all detects this courseware file is to send to finish or by student's cancellation (mark 2), if process of transmitting finishes; If not, the above-mentioned three class packets of just normal transmission, be that the identical text audio frequency and video bag of time mark is by wholesale sending (mark 3), in process of transmitting, system detects server and network bandwidth resources (mark 4), be that whether server and network bandwidth resources have (mark 5) more than needed, the finger more than needed here is when the above-mentioned packet of normal transmission, the processor of server, internal memory, computing process and network traffics etc. also do not reach design load, can also improve transmission rate, owing to be the online request system, packet all receives in real time on the program request terminal and plays, general VOD system all be speed with basic fixed in transmits data packets, but server and network bandwidth resources are when nervous, transmission speed will reduce, and result of broadcast just is affected.The present invention has adopted the asynchronous system data pack transmission method that makes full use of server and network bandwidth resources, in the normal process of transmitting of order program data, if server and network bandwidth resources also have more than needed, sending when first three plants packet, increase the text packets (mark 6) that sends the follow-up play time again, the content of text that is about to follow-up play sends on the program request terminal temporary in advance; If server and network bandwidth resources are not more than needed, see that paragragh is described below this paper; In the packet process of transmitting, detect simultaneously server and network bandwidth resources (mark 7) again and whether also have (mark 8) more than needed, if, send the audio pack (mark 9) of follow-up play time, if server and network bandwidth resources are not more than needed, then turn back to the transmission (being mark 2 described steps) of the online playback data of next group; In above-mentioned packet process of transmitting, detect server and network bandwidth resources (mark 10) simultaneously again and whether also have (mark 11) more than needed, if, the video packets (mark 12) of transmission next group reproduction time.This situation only just might take place under server and network bandwidth resources situation very more than needed, this resource more than needed can be made full use of, taking advantage of server and network bandwidth resources when more than needed, three kinds of packets as much as possible are sent to the program request terminal in advance keeps in, if just can directly call when server and network bandwidth resources are nervous afterwards in the program request terminal, just the influence of server and network bandwidth resources can be dropped to minimum level, it is the same to be equivalent to financing, every month income is not all used up, store away as savings, prepare against urgent need.Counter-measure when being exactly server and network bandwidth resources anxiety below.
In mark 5 described steps, if server and network bandwidth resources are not more than needed, then detect and wait to broadcast text audio pack (mark 15), it is temporary whether text audio pack promptly to be broadcast has sent to the program request terminal in advance, wait to broadcast the text audio pack if then stop to send, by the program request terminal call in this locality send in advance wait to broadcast the text audio pack, whether detect server and network bandwidth resources more also nervous, if not, then turning back to mark 2 described next group packets sends, if, then optimize video packets to be broadcast (mark 20), promptly improve the compression ratio of video packets, may be reduced in the video playing quality on the program request terminal this moment, in general, reducing some video playing quality students is acceptables.Detect simultaneously whether also anxiety (mark 21) of server and network bandwidth resources again, if not, then turning back to mark 2 described next group packets sends, if, then stop to send audio pack to be broadcast (mark 22), in this case, illustrate that server and network bandwidth resources are at full stretch, or even constantly the compression ratio reduction video playing quality of video packets does not still have enough resource normal transmission audio frequency, even in audio pack also be under the situation of high compression also like this, this is a kind of limiting case of resource anxiety, this situation may appear as sowing at the bad mobile phone flow medium point of network condition, this moment, the transmission of audio pack was a greater impact, the choppy voice that will occur playing on the program request terminal be can not hear clearly, stop to send wait to broadcast audio pack after, can save tangible network bandwidth resources, to guarantee the normal transmission of text packets and bottom line video packets, this moment, the broadcast of audio pack adopted machine synthetic by the program request terminal, as adopting the TTS speech synthesis technique, the program request terminal synthesizes voice output with the text that receives.But the synthetic voice of machine lack lively sense, for further reinforced effects, when ordering server is prepared to remove the part audio packet data, can be divided into a plurality of range sections to the tone and the tone color of the audio packet data removed, and to the last Audiocode of each range section volume, and these Audiocodes are sent to the program request terminal with other packets, the program request terminal can be carried out simulation process to the voice that generate according to Audiocode when carrying out the generation of machine talk.Text and the sounding object information except that text also can be transferred to the program request terminal with code in this way, make the program request terminal when the machine synthetic speech, to reach effect more true to nature, as distinguishing out the different voice effects of male and female students, child's old man different voice effects, the sounding effect of animal cry and other occurring in nature objects etc.
By having adopted in the said process of the present invention, the Online Video VOD system has just had higher intelligent processing ability, can reach program request effect preferably at all kinds of servers and the unsettled situation of network bandwidth resources, especially be fit to the application of mobile phone flow medium.
Claims (9)
1, a kind of transmission method of video information, institute's information transmitted comprises video information and the corresponding with it audio-frequency information and the text message of video frequency program file, by ordering server above-mentioned information is continued to send to the program request terminal after the packing compression, play behind this packing information compressed decompress(ion) that will receive by the program request terminal, original video information and corresponding with it audio-frequency information and text message are restored, it is characterized in that, ordering server is when the above-mentioned information of packing compression, press the video information of playing sequence with each chronomere's fragment, audio-frequency information, separately packing compression of text message, the compressed package of identical chronomere fragment has identical timestamp, and transmission respectively, when these compressed packages of transmission, priority is: text packets, audio pack, video packets, when the program request terminal receives above-mentioned compressed package, compressed package with identical timestamp carries out decompress(ion) and synthetic, plays back on the program request terminal.
2, the transmission method of video information according to claim 1, the transmission that it is characterized in that video information with play, be clue in proper order with the timestamp of video compression bag, video information is handled.
3, the transmission method of video information according to claim 1, it is characterized in that, when ordering server normal transmission compressed package data, if server processes and network bandwidth resources still have surplus capacity, then continue transmission follow-up text packets and audio pack, make text packets and audio pack than arriving the program request terminal before the video packets corresponding with it.
4, the transmission method of video information according to claim 3, it is characterized in that, when ordering server transmits follow-up text packets and audio pack, if server processes and network bandwidth resources still have surplus capacity, then continue the follow-up text of transmission, make text packets than arriving before the program request terminal with its corresponding audio bag.
5, the transmission method of video information according to claim 4, it is characterized in that, when ordering server transmits follow-up text packets,, then continue to handle and transmission next round compressed package data if server processes and network bandwidth resources still have surplus capacity.
6, according to the transmission method of any described video information in the claim 1,3,4,5, it is characterized in that, the program request terminal is when handling the compressed package that receives, with the video packets timestamp is that clue is play, the packet that receives is in advance kept in, and call according to the processing demands of video packet data.
7, the transmission method of video information according to claim 1, it is characterized in that, when server processes and network bandwidth resources anxiety, transfer to the program request terminal in advance if be about to the video compression bag data of transmission, then transmission of video compressed package data are only no longer transmitted follow-up audio pack and text packets data; Otherwise video packet data is compressed more at high proportion, to guarantee the normal transmission of audio pack and text packets data.
8, the transmission method of video information according to claim 7, it is characterized in that, after video packet data is compressed more at high proportion, the transmission quality of video information drops to minimum level still can't other necessary audio frequency of normal transmission and during the text data bag, remove the transmission of part audio packet data, the program request terminal if find corresponding audio packet data disappearance, then generates corresponding machine talk automatically with the text packets data and plays when handle packet is play.
9, the transmission method of video information according to claim 8, it is characterized in that, when ordering server is prepared to remove the part audio packet data, can be divided into a plurality of range sections to the tone and the tone color of the audio packet data removed, and to the last Audiocode of each range section volume, and these Audiocodes are sent to the program request terminal with other packets, the program request terminal can be carried out simulation process to the voice that generate according to Audiocode when carrying out the generation of machine talk.
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| CN 200710074114 CN101035262A (en) | 2007-04-19 | 2007-04-19 | Video information transmission method |
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| CN 200710074114 CN101035262A (en) | 2007-04-19 | 2007-04-19 | Video information transmission method |
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| CN102740131A (en) * | 2012-07-09 | 2012-10-17 | 深圳市香江文化传播有限公司 | Real-time transport protocol-based network television direct transmission method and system |
| CN102957892A (en) * | 2011-08-24 | 2013-03-06 | 三星电子（中国）研发中心 | Method, system and device for realizing audio and video conference |
| CN103023994A (en) * | 2012-11-29 | 2013-04-03 | 深圳市新国都技术股份有限公司 | Remote downloading method for POS (point-of-sale) machine |
| CN103067386A (en) * | 2012-12-28 | 2013-04-24 | 苏州汉辰数字科技有限公司 | Method for achieving multi-media streaming file quantization management |
| CN103765914A (en) * | 2011-09-06 | 2014-04-30 | 高通股份有限公司 | Network streaming of coded video data |
| CN105306861A (en) * | 2015-10-15 | 2016-02-03 | 深圳市时尚德源文化传播有限公司 | Online teaching recording and playing method and system |
| CN105491414A (en) * | 2015-11-19 | 2016-04-13 | 深圳市时尚德源文化传播有限公司 | Synchronous display method and device of images |
| CN105516604A (en) * | 2016-01-20 | 2016-04-20 | 陈昊 | Aerial video sharing method and system |
| CN106027337A (en) * | 2016-05-11 | 2016-10-12 | 百度在线网络技术（北京）有限公司 | Smart home platform, network provider selection method and device applied thereto |
| CN107145360A (en) * | 2017-05-19 | 2017-09-08 | 北京望远传媒有限公司 | A kind of screen message acquisition method and device |
| WO2017157168A1 (en) * | 2016-03-18 | 2017-09-21 | 中兴通讯股份有限公司 | Method, terminal, system and computer storage medium for video calling |
| CN108881185A (en) * | 2018-05-31 | 2018-11-23 | 康键信息技术（深圳）有限公司 | Data sending device and method, data sink and method and storage medium |
| CN109871499A (en) * | 2019-01-16 | 2019-06-11 | 中国平安财产保险股份有限公司 | Page loading method and client |
| CN112233210A (en) * | 2020-09-14 | 2021-01-15 | 北京百度网讯科技有限公司 | Method, device, equipment and computer storage medium for generating virtual character video |
| CN113079387A (en) * | 2021-03-26 | 2021-07-06 | 平安银行股份有限公司 | Remote video recording method, device, equipment and storage medium |
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| CN102957892A (en) * | 2011-08-24 | 2013-03-06 | 三星电子（中国）研发中心 | Method, system and device for realizing audio and video conference |
| US9900363B2 (en) | 2011-09-06 | 2018-02-20 | Qualcomm Incorporated | Network streaming of coded video data |
| CN103765914B (en) * | 2011-09-06 | 2016-10-12 | 高通股份有限公司 | The network stream transmission of decoded video data |
| CN103765914A (en) * | 2011-09-06 | 2014-04-30 | 高通股份有限公司 | Network streaming of coded video data |
| CN102740131B (en) * | 2012-07-09 | 2015-12-02 | 深圳市香江文化传播有限公司 | Based on the IPTV method and system of RTP |
| CN102740131A (en) * | 2012-07-09 | 2012-10-17 | 深圳市香江文化传播有限公司 | Real-time transport protocol-based network television direct transmission method and system |
| CN103023994B (en) * | 2012-11-29 | 2015-09-16 | 深圳市新国都技术股份有限公司 | A kind of remote download method for POS |
| CN103023994A (en) * | 2012-11-29 | 2013-04-03 | 深圳市新国都技术股份有限公司 | Remote downloading method for POS (point-of-sale) machine |
| CN103067386A (en) * | 2012-12-28 | 2013-04-24 | 苏州汉辰数字科技有限公司 | Method for achieving multi-media streaming file quantization management |
| CN105306861A (en) * | 2015-10-15 | 2016-02-03 | 深圳市时尚德源文化传播有限公司 | Online teaching recording and playing method and system |
| CN105491414B (en) * | 2015-11-19 | 2017-05-17 | 深圳市鹰硕技术有限公司 | Synchronous display method and device of images |
| CN105491414A (en) * | 2015-11-19 | 2016-04-13 | 深圳市时尚德源文化传播有限公司 | Synchronous display method and device of images |
| CN105516604A (en) * | 2016-01-20 | 2016-04-20 | 陈昊 | Aerial video sharing method and system |
| WO2017157168A1 (en) * | 2016-03-18 | 2017-09-21 | 中兴通讯股份有限公司 | Method, terminal, system and computer storage medium for video calling |
| CN107205131A (en) * | 2016-03-18 | 2017-09-26 | 中兴通讯股份有限公司 | A kind of methods, devices and systems for realizing video calling |
| CN106027337A (en) * | 2016-05-11 | 2016-10-12 | 百度在线网络技术（北京）有限公司 | Smart home platform, network provider selection method and device applied thereto |
| CN107145360A (en) * | 2017-05-19 | 2017-09-08 | 北京望远传媒有限公司 | A kind of screen message acquisition method and device |
| CN108881185A (en) * | 2018-05-31 | 2018-11-23 | 康键信息技术（深圳）有限公司 | Data sending device and method, data sink and method and storage medium |
| CN109871499A (en) * | 2019-01-16 | 2019-06-11 | 中国平安财产保险股份有限公司 | Page loading method and client |
| CN112233210A (en) * | 2020-09-14 | 2021-01-15 | 北京百度网讯科技有限公司 | Method, device, equipment and computer storage medium for generating virtual character video |
| CN113079387A (en) * | 2021-03-26 | 2021-07-06 | 平安银行股份有限公司 | Remote video recording method, device, equipment and storage medium |
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