CN103686346A - Video playing unsmoothness switching method and system - Google Patents
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Abstract
The invention discloses a video playing unsmoothness switching method and system. The method comprises, when playing unsmoothness of a video file occurs on a terminal, obtaining the downloading code stream value of the video file, wherein the downloading code stream value is the code stream value of the video file during the downloading process from a server; instructing the server side to adjust the downloading code stream value of the video file step by step to be smaller than the obtained downloading code stream value of the video file; downloading the video file according to the adjusted downloading code stream value and meanwhile determining whether the playing unsmoothness of the video file on the terminal is eliminated; if so, instructing the server side to stop the step-by-step adjustment and downloading the video file according to the downloading code stream value corresponding the elimination of the playing unsmoothness. The video playing unsmoothness switching method and system can achieve downloading code stream switching when the playing unsmoothness occurs, thereby solving the problem of playing unsmoothness of videos due to code streams of the videos.
Description
Technical field
The application relates to video code conversion field, more specifically, relates to the method and system that a kind of video playback card pauses and switches.
Background technology
Fast development along with information technology, the form of expression and the transmission means of information change: from modes such as traditional word (as: books, newspaper) and audio frequency (as: broadcast), be transformed into the video mode that has vivid expression power and have more information amount.TV of today and the Internet represent the abundant comprehensive resource of all kinds of movie and video programs, news, advertisement, chat, education and game etc. shared with visual form, thereby video has become people's study, social activity and amusement and recreation and irreplaceable important way.
At present, video website is carried out abundant video resource after transcoding processing, converts the multiple code stream that is suitable for broadcasting to.Code stream is also code check, refers to the data traffic that video file is used within the unit interval,, it be in Video coding image quality control in most important part.Under same resolution, the code stream of video file is larger, and compression ratio is just less, and image quality is just better.
For video, in the situation that guaranteeing its normal play, the factors such as different computer configurations, the network bandwidth have determined that the video code flow that player carries is also not quite similar.When the network bandwidth is less, network traffics are when larger, the video council that code stream is larger takies the more network bandwidth, thereby affect the transmission of video, make video when playing, occur the problem of playout-delay, when surpass certain threshold values time of delay, to there is " card " phenomenon in video playback, be in video display process, to occur pausing, even the long video data loss that occurs of time delay, causes " blank screen ", that is to say, code stream causes video in playing process, to occur the phenomenon that card pauses compared with conference.
Summary of the invention
In view of this, the application's technical problem to be solved has been to provide the method and system that a kind of video playback card pauses and switches, and occurs the problem of card during the video playback that causes with the code stream solving because of video.
In order to solve the problems of the technologies described above, the application discloses a kind of method that video playback card pauses and switches, and comprising:
Video file occurs playing card immediately in terminal, obtains the download code flow valuve of described video file, and wherein, described download code flow valuve is the code stream value of described video file from service end downloading process;
Indication service end is adjusted the download code flow valuve of described video file step by step, makes download code flow valuve after adjusting be less than the download code flow valuve of the described video file obtaining;
With the download code flow valuve downloading video files of the described video file after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses whether to eliminate simultaneously;
If eliminate, indicate described service end to adjust step by step described in stopping, and download described video file with the described broadcasting card download code flow valuve of eliminating corresponding described video file of pausing.
Preferably, indication service end is adjusted the download code flow valuve of described video file step by step, makes to comprise before the operating procedure of download code flow valuve of the described video file that download code flow valuve after adjusting obtains described in being less than:
According to the levels of sharpness of described video file, divide code stream value rank;
Using the download code flow valuve rank of described code stream value rank as described video file, and according to described download code flow valuve rank order from high to low, lower step by step the download code flow valuve rank of described video file, download code flow valuve corresponding to download code flow valuve rank that is adjusted to described video file is less than the described video obtaining and occurs playing the download code flow valuve before card pauses in described terminal.
Preferably, also comprise:
Monitor described video file download after in the buffering progress of described terminal and the progress difference between the playing progress rate in described terminal;
If described progress difference is greater than preset standard deviation, indicate described service end to adjust step by step the download code flow valuve of described video file, make the download code flow valuve after adjusting be greater than the download code flow valuve before adjustment;
Judge whether described video file occurs playing card in described terminal;
If occur, indicate described service end to adjust step by step described in stopping, and with described broadcasting card pause occur before the download code flow valuve of the described service end adjustment of last indication download.
Preferably, described preset standard deviation is for being not less than 3 seconds;
The described service end of described indication is adjusted step by step to download code flow valuve, is further: according to the levels of sharpness of described video file, divide code stream value rank;
Using described code stream value rank as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from low to high, raise step by step the download code flow valuve rank of described video file.
In order to solve the problems of the technologies described above, disclosed herein as well is the system that a kind of video playback card pauses and switches, couple mutually with terminal and service end, it is characterized in that, this system comprises: acquiring unit, adjustment unit and monitoring means, wherein,
Described acquiring unit, for occurring playing card immediately in terminal when video file, obtains the download code flow valuve of described video file, and wherein, described download code flow valuve is the code stream value of described video file from service end downloading process;
Described adjustment unit, is used to indicate the download code flow valuve that described service end is adjusted described video file step by step, makes download code flow valuve after adjusting be less than the download code flow valuve of the video file obtaining;
Whether described monitoring means, for the code stream value downloading video files of the described video file with after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses to eliminate; If eliminate, indicate described service end to adjust step by step described in stopping, and download described video file with the described broadcasting card download code flow valuve of eliminating corresponding described video file of pausing.
Preferably, described adjustment unit, is further used for:
According to the levels of sharpness of described video file, divide code stream value rank;
Described code stream value rank is as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from high to low, lower step by step the download code flow valuve of described video file, the download code flow valuve that is adjusted to described video file is less than the described video obtaining and occurs playing the download code flow valuve before card pauses in described terminal.
Preferably, described monitoring means, also for:
Monitor described video file download after in the buffering progress of described terminal and the progress difference between the playing progress rate in described terminal;
If described progress difference is greater than preset standard deviation, indicate described service end to adjust step by step the download code flow valuve of described video file, make the download code flow valuve after adjusting be greater than the download code flow valuve before adjustment;
Judge whether described video file occurs playing card in described terminal;
If occur, indicate described service end to adjust step by step described in stopping, and with described broadcasting card pause occur before the download code flow valuve of the described service end adjustment of last indication download.
Preferably, described preset standard deviation is for being not less than 3 seconds;
Described adjustment unit, further also for:
According to the levels of sharpness of described video file, divide code stream value rank;
Using described code stream value rank as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from low to high, raise step by step the download code flow valuve of described video file.
Compared with prior art, the method and system that a kind of video playback card described in the application pauses and switches, has reached following effect:
1) the application monitors the broadcast state of video, when occurring playing card immediately, according to code stream order adjustment from high to low, until the code stream after adjusting and current network bandwidth state match, realized between different download code streams mutually and having switched, thereby while efficiently solving the video playback that the code stream because of video causes, occurred the problem of card.
2) the application can also monitor the buffering progress of video when playing, when the distance of buffering progress and the current playing progress rate of video surpasses preset distance value, proof current network environment is better, the code stream of video is switched to higher code stream, thereby the definition that has increased video, has promoted viewing experience.
Certainly, arbitrary product of enforcement the application must not necessarily need to reach above-described all technique effects simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present application, forms the application's a part, and the application's schematic description and description is used for explaining the application, does not form the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the pause FB(flow block) of the method switched of the video playback card described in the embodiment of the present application one.
Fig. 2 is the pause FB(flow block) of the method switched of the video playback card described in the embodiment of the present application two.
Fig. 3 is the pause structured flowchart of the system switched of the video playback card described in the embodiment of the present application four.
Embodiment
As used some vocabulary in the middle of specification and claim, censure specific components.Those skilled in the art should understand, and hardware manufacturer may be called same assembly with different nouns.This specification and claims are not used as distinguishing the mode of assembly with the difference of title, but the difference in function is used as the criterion of distinguishing with assembly.If " comprising " mentioned in the middle of specification and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer to that in receivable error range, those skilled in the art can solve the technical problem within the scope of certain error, reach described technique effect substantially.In addition, " couple " word and comprise directly any and electric property coupling means indirectly at this.Therefore, if describe a first device in literary composition, be coupled to one second device, represent that described first device can directly be electrically coupled to described the second device, or be indirectly electrically coupled to described the second device by other devices or the means that couple.Specification subsequent descriptions is for implementing the application's better embodiment, and right described description is to illustrate that the application's rule is object, not in order to limit the application's scope.The application's protection range is when being as the criterion depending on the claims person of defining.
Embodiment mono-
As shown in Figure 1, be the method that a kind of video playback card described in the embodiment of the present application one pauses and switches, the method comprises:
Step 101, video file occurs playing card immediately in terminal, obtains the download code flow valuve of described video file, and wherein, described download code flow valuve is the code stream value of described video file from service end downloading process.
In step 101, described video file leaves in described service end, can be specifically corresponding video server or be specifically designed in the database of store video, certainly, the video of storage has carried out corresponding transcoding processing, be converted to and be applicable to the form (comprising multiple code stream form) that transmission is play, in the present embodiment, described service end can adopt the mode of cloud framework, wherein said video server can be used as cloud storage server and carries out video storage, be that various places are used per family or transcoding server can upload to corresponding video server by being suitable for the video resource that transmission is play or transcoding completes.
Meanwhile, the described client in step 101 can be Digital Television, internet television, panel computer, terminal or the playback terminal with network savvy, and this is not limited.Described terminal is downloaded corresponding video and is play from described service end.
It should be noted that, the video that described terminal is downloaded from described service end is the video of the acquiescence code stream of described service end setting, the laggard row buffering of a described client downloads video is play, i.e. limit download limit buffering, plays the video data being buffered in described client.Thereby the quality of the network bandwidth state of described client has just determined whether this video can smooth buffered play.At described client network bandwidth status, limited or network congestion in the situation that, will cause video to download slowly and even stagnate, occur the phenomenon of card.That is to say, the code stream value of current described video is also not suitable for current bandwidth status.So, in step 101, obtain the download code flow valuve of described video file
For step 102, described code stream value, specifically refers to the data flow value of video within the unit interval, so, the code stream value of described video is less, its data flow value is less, just lower for the requirement of the network bandwidth, thereby, in step 102, by adjusting described code stream value, make the code stream of this video be adapted to the bandwidth of current described client, just can eliminate Caton phenomenon.
It should be noted that, described video in described service end has the transmission standard of multiple code stream value form, when described client indicates described service end to adjust the current code stream value of this video, described service end is just adjusted the current code stream value of this video, makes the download code flow valuve of the described video file that the download code flow valuve of this video after adjusting obtains described in being less than.
Whether step 103, with the download code flow valuve downloading video files of the described video file after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses to eliminate simultaneously.
For step 103, may there is playing card and pause (network bandwidth state that the download code stream after adjustment is not suitable for current described user side) in the download code stream of the described video file after adjusting step by step, occurring can continuing adjustment after playing card pauses.
If described video file, in the elimination of pausing of the broadcasting card of described terminal, proves that this download code stream is suitable for the current network bandwidth state of described terminal.Thereby, in step 104, by pausing with described broadcasting card, to eliminate the download code flow valuve of corresponding described video file and download described video file, described video file produces without Caton phenomenon when playing, and the pipe clamp that increases user is experienced.
Embodiment bis-
As shown in Figure 2, be the method that a kind of video playback card described in the embodiment of the present application two pauses and switches, the method comprises:
Step 201, video file occurs playing card immediately in terminal, obtains the download code flow valuve of described video file, and wherein, described download code flow valuve is the code stream value of described video file from service end downloading process.
It should be noted that, when video carries out Internet Transmission (as: when downloading or uploading), be not whole video file overall coordination transmission, but video file is transmitted according to the mode of a definite sequence formation data sequence, the mode that forms data flow is transmitted.So, video is in downloading process described in described client monitors, and in the unit interval, the data value of transmission, just can get the described download code flow valuve that this video file is corresponding.Certainly, it can also be other modes that described client is obtained the described code stream value that described video is corresponding, does not form the restriction to the application.
Wherein, the size of described download code flow valuve specifically can be divided according to the rank of video definition corresponding to the code stream value of different video files, 350,800,1000,1300,720P and six kinds of different brackets of 1080P be ascendingly divided into successively:, in practical application, described code stream conventionally with video format and corresponding code stream value in conjunction with expression, as: flv-350, this can flow the video that represents flv form by transcoding, and its code stream value is 350.Certainly, the division of described code stream value and representation can also adopt other modes, do not form the restriction to the application.
For before step 202, also comprise: according to the levels of sharpness of described video file, divide code stream value rank;
Using the download code flow valuve rank of described code stream value rank as described video file, and according to described download code flow valuve rank order from high to low, lower step by step the download code flow valuve rank of described video file, download code flow valuve corresponding to download code flow valuve rank that is adjusted to described video file is less than the described video obtaining and occurs playing the download code flow valuve before card pauses in described terminal.。
Whether step 203, with the download code flow valuve downloading video files of the described video file after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses to eliminate simultaneously
Particularly, for step 202 to 204, after described client indicates described service end to adjust the code stream value of this video, in the different code stream value rank of dividing according to the levels of sharpness of described video, order is from high to low lowered step by step, code stream value corresponding to this video from service end downloading process of obtaining described in the code stream value of this video after adjusting is less than, in the situation of the code stream value of this video after judgement is lowered step by step, whether the card that described video is play in described terminal pauses is eliminated, if this card is not eliminated, indicate described service end to continue to lower step by step the download code flow valuve of this video file, if this card is eliminated, indicate described service end to stop lowering step by step the download code flow valuve of this video file.
For example: the code stream value of the described video that described client is downloaded from described service end is that 720P(is HD video, higher to described network bandwidth requirement), and the current network bandwidth status of described client is poor, code stream value is that the described video of 720P is when playing, there is card, now, described client indicates described service end to lower step by step the code stream value of described video, the code stream value that is about to this video is adjusted into 1300, and whether this video of monitoring after code stream value is lowered there is card when playing, still there is card in this video, therefore described client continues the code stream value that the described service end of indication is lowered described video, to under the code stream value of this video, be adjusted to 1000, by that analogy, described client will constantly indicate described service end to lower the code stream value of this video, until the code stream value of described video meets the network bandwidth state of active client, be that described card pauses and is eliminated, described client indicates described service end to stop lowering step by step the code stream value of this video in downloading process.
If described progress difference is greater than preset standard deviation, indicate described service end to adjust step by step the download code flow valuve of described video file, make the download code flow valuve after adjusting be greater than the download code flow valuve before adjustment;
Judge whether described video file occurs playing card in described terminal;
If occur, indicate described service end to adjust step by step described in stopping, and with described broadcasting card pause occur before the download code flow valuve of the described service end adjustment of last indication download.
Wherein, described preset standard deviation is for being not less than 3 seconds;
, when described video is greater than after preset standard deviation in the buffering progress of described terminal and the progress difference between the playing progress rate of this video in described terminal, in step 205,
According to the levels of sharpness of described video file, divide code stream value rank;
Using described code stream value rank as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from low to high, raise step by step the download code flow valuve rank of described video file.
It should be noted that, for step 205, can monitor the buffering progress of video when playing, when the distance of buffering progress and the current playing progress rate of video surpasses preset distance value, proof current network environment is better, the code stream of video is switched to higher code stream, thereby increased the definition of video, promoted viewing experience.
Embodiment tri-
To described video playback card, the pause concrete application of the method switched is elaborated below:
Set: described client is in the present embodiment multi-functional Web TV, user uses this Web TV to watch video (network bandwidth state is now poor) in network peak period, 350,800,1000,1300,720P and 1080P the rank of described code stream value is ascending can be:, described Web TV is current, and from described service end, to download download code flow valuve corresponding to super clear video A(be 1080P) play.
The pause process of switching (the namely adjustment in technique scheme) of video playback card is:
Step 1, video A plays and has occurred card in Web TV, and now, Web TV obtains the download code flow valuve that this video A is corresponding, and the download code flow valuve that gets video A is 1080P.
Step 2, Web TV is divided code stream value rank according to the levels of sharpness of described video file, lower step by step the code stream value of video described in downloading process, the download code flow valuve that is about to this video A is adjusted downward to 720P by 1080P, after downward, continue to play this video A, whether the broadcasting of monitoring video A there is card, but now, still there is card in video A, described Web TV indicates described service end to continue to lower the download code flow valuve of described video A, the code stream that is about to this video A is adjusted downward to 1300 by 720P, after downward, continue to play this video A, also there is card in video A, described Web TV indicates described service end that the download code flow valuve of described video A is adjusted downward to 1000 from 1300, after downward, continue to play this video A, now, video A can smooth playing, thereby described Web TV indicates described service end to stop lowering step by step the download code flow valuve of this video in downloading process.
After the described network bandwidth is in stable condition, whether the buffering progress of described video A after Web TV monitoring is downloaded and the progress difference between the playing progress rate of this video A are greater than 3 seconds, now, the buffering progress of video A and the progress difference between playing progress rate are greater than 3 seconds, proof current network environment is better, thereby, described Web TV indicates described service end on 1000, to be adjusted to 1300 to the current download code flow valuve of this video A in downloading process, after rise, continue to play this video A, now, the broadcasting of video A is without card, and the buffering progress of video A and the progress difference between playing progress rate are still greater than 3 seconds, so, described Web TV indicates described service end on 1300, to be adjusted to 720P to the current download code flow valuve of this video A in downloading process, while playing with the code stream value of 720P, there is card in video A, illustrate that current network bandwidth state is not suitable with the download code flow valuve of 720P, the download code flow valuve of the described service end of last indication to this video A adjusting in downloading process before Web TV occurs with card, 1300 download.
Certainly, in the present embodiment, user can also adopt manual mode to carry out the adjustment of video codes flow valuve:
When video playback, in Web TV, there is corresponding interaction options, comprising: determine the several functions buttons such as button, directionkeys up and down, Menu key, wherein,
When user presses definite key, can eject floating layer and user interactions, user can press and determine that key carries out the selection (as: broadcasting of video, time-out, the selection of the code stream value of video etc.) that function is determined indication when floating layer occurs;
When user presses directionkeys, upper directionkeys can recall navigation bar, facilitates user to switch various functional modes, and lower directionkeys can recall corresponding broadcasting or selective listing, LeftArrow meeting playback video, right key meeting F.F. video;
When user presses Menu key, eject the floating layer of the menu that video playback is arranged, user can carry out the settings such as code stream value, video ratio.
So, at described video A, there is card immediately, user can click Menu key voluntarily, select the code stream value of video to arrange, by the code stream value option in menu interface, the any code stream value of Switch Video A, until be switched to the code stream value that the network bandwidth with current network TV adapts, till not occurring that video playback card pauses.
Embodiment tetra-
As shown in Figure 3, be the system that a kind of video playback card described in the embodiment of the present application four pauses and switches, terminal couples mutually with service end, and this system comprises: acquiring unit 301, adjustment unit 302 and monitoring means 303, wherein,
Described acquiring unit 301, couple mutually with described adjustment unit 302, for occurring playing card immediately in described terminal when video file, obtain the download code flow valuve of described video file, wherein, described download code flow valuve is the code stream value of described video file from service end downloading process.
Described adjustment unit 302, couple mutually with described acquiring unit 301, service end and monitoring means 303, be used to indicate described service end and adjust step by step the download code flow valuve of described video file, make download code flow valuve after adjusting be less than the download code flow valuve of the video file obtaining.
Whether described monitoring means 303, couples mutually with described adjustment unit 302 and server, for the code stream value downloading video files of the described video file with after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses to eliminate; If eliminate, indicate described service end to adjust step by step described in stopping, and download described video file with the described broadcasting card download code flow valuve of eliminating corresponding described video file of pausing.
For described acquiring unit 301, when video carries out Internet Transmission (as: when downloading or uploading), be not whole video file overall coordination transmission, but video file is transmitted according to the mode of a definite sequence formation data sequence, the mode that forms data flow is transmitted.So, the described video of described acquiring unit 301 monitoring is in downloading process, and in the unit interval, the data value of transmission, just can get the described download code flow valuve that this video file is corresponding.
For adjustment unit 302, specifically for: according to the levels of sharpness of described video file, divide code stream value rank; Described code stream value rank is as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from high to low, lower step by step the download code flow valuve of described video file, the download code flow valuve that is adjusted to described video file is less than the described video obtaining and occurs playing the download code flow valuve before card pauses in described terminal.。
Wherein, the size of described download code flow valuve specifically can be divided according to the rank of video definition corresponding to the code stream value of different video files, 350,800,1000,1300,720P and six kinds of different brackets of 1080P be ascendingly divided into successively:, in practical application, described code stream conventionally with video format and corresponding code stream value in conjunction with expression, as: flv-350, this can flow the video that represents flv form by transcoding, and its code stream value is 350.Certainly, the division of described code stream value and representation can also adopt other modes, do not form the restriction to the application.
Specifically, for described monitoring means 302, in the situation of the code stream value of this video after lowering step by step specifically for monitoring judgement, whether the card that described video is play in described terminal pauses is eliminated, if this card is not eliminated, indicate described service end to continue to lower step by step the code stream value of this video file; If this card is eliminated, indicate described service end to stop lowering step by step the code stream value of this video file.
For example: the code stream value of the described video that described client is downloaded from described service end is that 720P(is HD video, higher to described network bandwidth requirement), and the current network bandwidth status of described client is poor, code stream value is that the described video of 720P is when playing, there is card, now, described monitoring means 303 notifies the described service end of described adjustment unit 302 indication to lower step by step the code stream value of described video, the code stream value that is about to this video is adjusted into 1300, and whether this video of monitoring after code stream value is lowered there is card when playing, still there is card in this video, therefore described monitoring means 303 continues to notify described adjustment unit 302 to continue the code stream value that the described service end of indication is lowered described video, to under the code stream value of this video, be adjusted to 1000, by that analogy, described monitoring means 303 notifies described adjustment unit 302 constantly to indicate described service end to lower the code stream value of this video, until the code stream value of described video meets the network bandwidth state of active client, be that described card pauses and is eliminated, the described service end of described monitoring means 303 indication stops lowering step by step the code stream value of this video in downloading process.
In addition, described adjustment unit 302, also for
According to the levels of sharpness of described video file, divide code stream value rank; Using described code stream value rank as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from low to high, raise step by step the download code flow valuve of described video file.
Wherein, described preset standard deviation is for being not less than 3 seconds;
Specifically, when described video is greater than after preset standard deviation in the buffering progress of described terminal and the progress difference between the playing progress rate of this video in described terminal, the different code stream value rank that described adjustment unit 302 is divided according to the levels of sharpness of video, indicate described service end with this code stream value rank order from low to high, raise step by step the download code flow valuve of this video file.
It should be noted that, described monitoring means 303 can be monitored the buffering progress of video when playing, when the distance of buffering progress and the current playing progress rate of video surpasses preset distance value, proof current network environment is better, notify described adjustment unit 302 that the code stream of video is switched to higher code stream, thereby the definition that has increased video, has promoted viewing experience.
Because method part have been described in detail the embodiment of the present application, here the expansion of the System and method for corresponding part relating in embodiment is described and omitted, repeat no more.The reference method embodiment of content can to(for) the description of particular content in system, no longer specifically limits here.
Compared with prior art, the method and system that a kind of video playback card described in the application pauses and switches, has reached following effect:
1) the application monitors the broadcast state of video, when occurring playing card immediately, according to code stream order adjustment from high to low, until the code stream after adjusting and current network bandwidth state match, realized between different download code streams mutually and having switched, thereby while efficiently solving the video playback that the code stream because of video causes, occurred the problem of card.
2) the application can also monitor the buffering progress of video when playing, when the distance of buffering progress and the current playing progress rate of video surpasses preset distance value, proof current network environment is better, the code stream of video is switched to higher code stream, thereby the definition that has increased video, has promoted viewing experience.
Also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, commodity or the system that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, commodity or system.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, commodity or the system that comprises described key element and also have other identical element.
The embodiment that it will be understood by those skilled in the art that the application can be provided as method, system or computer program.Therefore, the application can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect completely.And the application can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The embodiment that the foregoing is only the application, is not limited to the application.To those skilled in the art, the application can have various modifications and variations.Any modification of doing within all spirit in the application and principle, be equal to replacement, improvement etc., within all should being included in the application's claim scope.
Claims (8)
1. the method that video playback card pauses and switches, is characterized in that, comprising:
Video file occurs playing card immediately in terminal, obtains the download code flow valuve of described video file, and wherein, described download code flow valuve is the code stream value of described video file from service end downloading process;
Indication service end is adjusted the download code flow valuve of described video file step by step, makes download code flow valuve after adjusting be less than the download code flow valuve of the described video file obtaining;
With the download code flow valuve downloading video files of the described video file after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses whether to eliminate simultaneously;
If eliminate, indicate described service end to adjust step by step described in stopping, and download described video file with the described broadcasting card download code flow valuve of eliminating corresponding described video file of pausing.
2. the method that video playback card as claimed in claim 1 pauses and switches, it is characterized in that, indication service end is adjusted the download code flow valuve of described video file step by step, makes to comprise before the operating procedure of download code flow valuve of the described video file that download code flow valuve after adjusting obtains described in being less than:
According to the levels of sharpness of described video file, divide code stream value rank;
Using the download code flow valuve rank of described code stream value rank as described video file, and according to described download code flow valuve rank order from high to low, lower step by step the download code flow valuve rank of described video file, download code flow valuve corresponding to download code flow valuve rank that is adjusted to described video file is less than the described video obtaining and occurs playing the download code flow valuve before card pauses in described terminal.
3. the method that video playback card as claimed in claim 1 pauses and switches, is characterized in that, it is characterized in that, also comprises:
Monitor described video file download after in the buffering progress of described terminal and the progress difference between the playing progress rate in described terminal;
If described progress difference is greater than preset standard deviation, indicate described service end to adjust step by step the download code flow valuve of described video file, make the download code flow valuve after adjusting be greater than the download code flow valuve before adjustment;
Judge whether described video file occurs playing card in described terminal;
If occur, indicate described service end to adjust step by step described in stopping, and with described broadcasting card pause occur before the download code flow valuve of the described service end adjustment of last indication download.
4. the method that video playback card as claimed in claim 3 pauses and switches, is characterized in that,
Described preset standard deviation is for being not less than 3 seconds;
The described service end of described indication is adjusted step by step to download code flow valuve, is further: according to the levels of sharpness of described video file, divide code stream value rank;
Using described code stream value rank as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from low to high, raise step by step the download code flow valuve rank of described video file.
5. the system that video playback card pauses and switches, couples mutually with terminal and service end, it is characterized in that, this system comprises: acquiring unit, adjustment unit and monitoring means, wherein,
Described acquiring unit, for occurring playing card immediately in terminal when video file, obtains the download code flow valuve of described video file, and wherein, described download code flow valuve is the code stream value of described video file from service end downloading process;
Described adjustment unit, is used to indicate the download code flow valuve that described service end is adjusted described video file step by step, makes download code flow valuve after adjusting be less than the download code flow valuve of the video file obtaining;
Whether described monitoring means, for the code stream value downloading video files of the described video file with after adjusting, judge that broadcasting card that described video file occurs in described terminal pauses to eliminate; If eliminate, indicate described service end to adjust step by step described in stopping, and download described video file with the described broadcasting card download code flow valuve of eliminating corresponding described video file of pausing.
6. the system that video playback card as claimed in claim 5 pauses and switches, is characterized in that, described adjustment unit, is further used for:
According to the levels of sharpness of described video file, divide code stream value rank;
Described code stream value rank is as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from high to low, lower step by step the download code flow valuve of described video file, the download code flow valuve that is adjusted to described video file is less than the described video obtaining and occurs playing the download code flow valuve before card pauses in described terminal.
7. the system that video playback card as claimed in claim 5 pauses and switches, is characterized in that, described monitoring means, also for:
Monitor described video file download after in the buffering progress of described terminal and the progress difference between the playing progress rate in described terminal;
If described progress difference is greater than preset standard deviation, indicate described service end to adjust step by step the download code flow valuve of described video file, make the download code flow valuve after adjusting be greater than the download code flow valuve before adjustment;
Judge whether described video file occurs playing card in described terminal;
If occur, indicate described service end to adjust step by step described in stopping, and with described broadcasting card pause occur before the download code flow valuve of the described service end adjustment of last indication download.
8. the system that video playback card as claimed in claim 7 pauses and switches, is characterized in that, described preset standard deviation is for being not less than 3 seconds;
Described adjustment unit, further also for:
According to the levels of sharpness of described video file, divide code stream value rank;
Using described code stream value rank as the download code flow valuve rank of described video file, and according to described download code flow valuve rank order from low to high, raise step by step the download code flow valuve of described video file.
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