CN105847967A - Video playback control method, device and terminal equipment - Google Patents
Video playback control method, device and terminal equipment Download PDFInfo
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- CN105847967A CN105847967A CN201610242904.4A CN201610242904A CN105847967A CN 105847967 A CN105847967 A CN 105847967A CN 201610242904 A CN201610242904 A CN 201610242904A CN 105847967 A CN105847967 A CN 105847967A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 72
- 238000000151 deposition Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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Classifications
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a video playback control method, a video playback control device and terminal equipment. The video playback control method comprises the steps of: receiving a first video frame and inserting the first video frame into a cache region; predicting second transmission jitter in receiving a next video frame of the first video frame according to first transmission jitter of a plurality of video frames including the first video frame relative to a previous video frame received by each of the video frames; acquiring playback time of a latest output second video frame by the cache region; and determining waiting time length from the playback time of the second video frame to playback time of a next video frame of the second video frame according to the second transmission jitter. By adopting the video playback control method, the video playback control device and the terminal equipment, the network jitter is fed back to output control of the video frames, and output timing of the video frame to be output is adjusted according to the current network condition dynamically, thereby reducing probability of overflow of the cache region.
Description
Technical field
The present invention relates to video display arts field, particularly relate to a kind of video playing control method,
Device and terminal unit.
Background technology
Carry out in video display process user by video playback window, general broadcasting controlling party
Method uses the frame of video that the buffer area of fixed size receives, and according to the display carried in frame of video
Timestamp controls the output of frame of video.When the changed condition of the network for transmitting frame of video is bigger
Time, it is not received by frame of video in a period of time i.e. occurs, receives in another a period of time and regard in a large number
During the situation of frame frequently, the phenomenon of buffer overflow easily occurs, so that video playback occurs relatively
Big fluctuation, affects user's viewing
Summary of the invention
It is an object of the invention to, it is provided that a kind of video playing control method, device and terminal unit,
Reduce the probability of buffer overflow.
According to an aspect of the present invention, it is provided that a kind of video playing control method, described method includes:
Receive the first frame of video and insert buffer area；Regard according to multiple including described first frame of video
Frequently frame is respectively relative to the first transmission jitter of its previous frame of video received, it was predicted that receive described
Second transmission jitter of next frame of video of the first frame of video；Obtain the up-to-date output of described buffer area
The reproduction time of the second frame of video；Determine from described second frame of video according to described second transmission jitter
Reproduction time to the waiting time of next frame of video playing described second frame of video.
According to a further aspect in the invention, also provide for a kind of video playback and control device, described device
Including: receive unit, for receiving the first frame of video and inserting buffer area；Predicting unit, is used for
According to the multiple frame of video including the first frame of video that described reception unit receives the most relatively
The first transmission jitter in its previous frame of video received, it was predicted that receive described first frame of video
Second transmission jitter of next frame of video；Reproduction time acquiring unit, is used for obtaining described buffer area
The reproduction time of the second frame of video of up-to-date output；Control unit, for according to described predicting unit
The second transmission jitter obtained determines described second video obtained from described reproduction time acquiring unit
The reproduction time of frame is to the waiting time of next frame of video playing described second frame of video.
According to a further aspect in the invention, a kind of video playing terminal equipment, described terminal are also provided for
Equipment includes that foregoing video playback controls device.
Video playing control method, device and the terminal unit that the embodiment of the present invention provides, according to bag
Include the first frame of video of being currently received to be respectively relative to it in interior multiple frame of video and previous receive
The first transmission jitter of frame of video, it was predicted that receive described first frame of video next frame of video
Two transmission jitter；And according to described second transmission jitter determine from the broadcasting of described second frame of video time
Between to playing waiting time of next frame of video of described second frame of video, thus by network jitter (i.e.
First transmission jitter) feed back to frame of video output control in, dynamically adjust according to current network conditions
The output opportunity of whole frame of video to be output, thus reduce the probability of buffer overflow.
Accompanying drawing explanation
Fig. 1 illustrates the schematic flow sheet of video playing control method in the embodiment of the present invention one；
Fig. 2 illustrates that in the embodiment of the present invention two, video playback controls the structural representation of device.
Detailed description of the invention
Describe the exemplary embodiment of the present invention below in conjunction with the accompanying drawings in detail.
Embodiment one
Fig. 1 illustrates the schematic flow sheet of video playing control method in the embodiment of the present invention one, sees
Fig. 1, video playing control method includes S110, S120, S130 and S140.
At S110, receive the first frame of video and insert buffer area.
Pre-setting the buffer area of fixed size, the size of buffer area can setting according to video playback
The performance put determines.If the speed receiving frame of video is fast, the speed of output video frame is slow, causes
Frame of video quantity in buffer area has exceeded the size of buffer area, then start to abandon some frame of video with
Alleviate the pressure of buffer area, buffer area overflow i.e. occurs；If the speed receiving frame of video is slow, defeated
The speed going out frame of video is fast, has not had frame of video, new frame of video also not to receive in relief area
Arrive, buffer area underflow i.e. occurs.
Frame of video typically can be carried decoded time stamp (Decoding Time Stamp, DTS) and
With Presentation Time Stamp (Presentation Time Stamp, PTS), wherein, decoded time stamp is used
In the time of the corresponding frame of video of instruction decoding, Presentation Time Stamp is for indicating the corresponding frame of video of display
Time.After receiving frame of video, according to decoded time stamp, frame of video is decoded, will decoding
After frame of video insert buffer area.In the present invention, in order to distinguish the frame of video that is currently received with
The frame of video before received, is defined as the first frame of video by the frame of video being currently received.Such as,
The form of Presentation Time Stamp can be PTS=(quantity of encoded frame ++) * (1000/ frame per second).
At S120, it is respectively relative to it according to the multiple frame of video including described first frame of video
First transmission jitter of the previous frame of video received, it was predicted that receive next of described first frame of video
Second transmission jitter of frame of video.
In the present embodiment, the sliding window that size is M (M is the positive integer more than 1) can be taken
Mouthful, this sliding window includes that described first frame of video is in interior multiple (i.e. M) frame of video.
If number N of the frame of video not exported in buffer area is less than M, the then M that sliding window includes
N number of frame of video that individual frame of video does not exports in referring to buffer area and M-N the frame of video exported；
If number N of the frame of video not exported in buffer area is more than M, the then M that sliding window includes
Individual frame of video refers to M-1 the frame of video received before the first frame of video and the first frame of video.
Can basis:
J=Δ time-Δ PTS
Determine that in the plurality of frame of video, arbitrary frame of video is relative to its previous frame of video received
First transmission jitter, wherein, described J be in the plurality of frame of video arbitrary frame of video relative to it
First transmission jitter of the previous frame of video received, described Δ time is in the plurality of frame of video
Arbitrary frame of video is relative to the difference receiving the time of its previous frame of video received, described Δ PTS
During for frame of video arbitrary in the plurality of frame of video relative to the display of its previous frame of video received
Between stamp difference.Such as, when M is 90 when, the first frame of video being currently received is
90 frame of video, calculate the 1st to 90 frame of video respectively relative to its previous video received
First transmission jitter of frame.
It is possible to further using described first transmission jitter as stochastic variable, according to described at random
Variable and corresponding probability, calculate the mathematical expectation of described stochastic variable, by described mathematic expectaion
Value is as described second transmission jitter.It is to illustrate, by each stochastic variable with corresponding as a example by 90 by M
The product summation of probability obtains the mathematical expectation of described stochastic variable.Further, it is also possible to system
In meter sliding window, the first transmission jitter of frame of video probability in probability interval set in advance divides
Cloth, such as probability interval include (-∞ ,-0.3s), [-0.3s ,-0.2s), [-0.2s ,-0.1s),
[-0.1s,-80ms)、[-80ms,-60ms)、[-60ms,-40ms)、[-40ms,-30ms)、
[-30ms,-25ms)、[-25ms,-20ms)……
At S130, obtain the reproduction time of the second frame of video of the up-to-date output of described buffer area.S130
And the sequencing being not carried out between S110 and S120.
At S140, determine the reproduction time from described second frame of video according to described second transmission jitter
Waiting time to next frame of video playing described second frame of video.
In the present embodiment, can basis:
Delta '=max (1, abs (delta+E+0.5) > 2*delta？2*delta:delta+E+0.5)
Determine and regard from the reproduction time of described second frame of video to next of described second frame of video of broadcasting
Frequently the waiting time of frame, wherein, delta ' is described waiting time, and E is the number of described stochastic variable
Learning expected value, delta is the Presentation Time Stamp and described the of next frame of video of described second frame of video
The difference of the Presentation Time Stamp of two frame of video.Abs (delta+E+0.5) represents delta+E+0.5's
Absolute value, delta '=max (1, abs (delta+E+0.5) > 2*delta？2*delta:delta+E+0.5)
Represent when abs (delta+E+0.5) > 2*delta is true, and the value of the most whole expression formula is
2*delta, as abs (delta+E+0.5) > 2*delta is false, the value of the most whole expression formula is
delta+E+0.5；max(1,abs(delta+E+0.5)>2*delta？2*delta:delta+E+0.5)
Represent and take 1 to abs (delta+E+0.5) > 2*delta？Interval 2*delta:delta+E+0.5)
Interior maximum.
Further, described method can also include: according to the waiting time determined, plays described
Next frame of video of second frame of video.
Alternatively, described method also includes S150 and S160.
At S150, according to the first transmission jitter determined in S120 and the second transmission jitter, determine
For transmitting the stability parameter of the network of frame of video.
Specifically, in the present embodiment, by the multiple frame of video including described first frame of video
It is respectively relative to the first transmission jitter of its previous frame of video received as stochastic variable, and counts
The meansigma methods of the difference square calculating described stochastic variable and described mathematical expectation obtains described stochastic variable
Variance, using described variance as being used for transmitting the stability parameter of the network of frame of video.
At S160, adjust the number of the plurality of frame of video according to described stability parameter.
In the present embodiment, correspondingly determine described many according to the value of the described variance determined in S150
The number of individual frame of video, wherein, the corresponding big the plurality of frame of video of the value of big described variance
Number.Number (the i.e. sliding window of multiple frame of video corresponding to different variance intervals can be set
Size M), such as, when variance is between [0,1.0], M is 90；When variance (1.0,1.2]
Between time, M is 120；When variance (1.2,1.45] between time, M is 150；When variance (1.45,1.7]
Between time, M is 200；When variance (1.7 ,+∞] between time, M is 300, this exemplary theory
Bright only for getting more information about technical scheme rather than to technical solution of the present invention
Limit.
Repeat S110 to S160, according to the first frame of video being currently received interior multiple
Multiple frame of video that frame of video adjusts relative to the first transmission jitter of the previous frame of video received
Number (i.e. size M of sliding window), by receive the first frame of video next frame of video time,
Number according to the multiple frame of video after adjusting determines the first new transmission jitter.
Use the technical scheme of the embodiment of the present invention, according to including the first frame of video of being currently received
The first transmission jitter of its previous frame of video received it is respectively relative in interior multiple frame of video,
Prediction receives the second transmission jitter of next frame of video of described first frame of video；And according to described
Two transmission jitter determine from the reproduction time of described second frame of video to playing described second frame of video
The waiting time of next frame of video, thus feed back to regard by network jitter (the i.e. first transmission jitter)
Frequently during the output of frame controls, when dynamically adjusting the output of frame of video to be output according to current network conditions
Machine, thus reduce the probability of buffer overflow.
Embodiment two
Fig. 2 illustrates that in the embodiment of the present invention two, video playback controls the structural representation of device.This reality
The video playback that executing example provides controls device for performing the video playback controlling party described in embodiment one
Method.See Fig. 2, a kind of video playback control device include receiving unit 210, predicting unit 220,
Reproduction time acquiring unit 230 and control unit 240.
Receive unit 210, for receiving the first frame of video and inserting buffer area.
Predicting unit 220, for according to including that the first frame of video that described reception unit receives exists
Interior multiple frame of video are respectively relative to the first transmission jitter of its previous frame of video received, in advance
Survey the second transmission jitter of next frame of video receiving described first frame of video.
Reproduction time acquiring unit 230, for obtaining the second video of the up-to-date output of described buffer area
The reproduction time of frame.
Control unit 240, the second transmission jitter for obtaining according to described predicting unit determine from
The reproduction time of described second frame of video that described reproduction time acquiring unit obtains is to broadcasting described the
The waiting time of next frame of video of two frame of video.
Further, described predicting unit is specifically for becoming described first transmission jitter as random
Amount, according to described stochastic variable and corresponding probability, calculates the mathematical expectation of described stochastic variable,
Using described mathematical expectation as described second transmission jitter.
Further, described control unit is specifically for basis
Delta '=max (1, abs (delta+E+0.5) > 2*delta？2*delta:delta+E+0.5) true
Determine from the reproduction time of described second frame of video to next frame of video of described second frame of video of broadcasting
Waiting time, wherein, delta ' is described waiting time, and E is the mathematic expectaion of described stochastic variable
Value, delta is the Presentation Time Stamp of next frame of video of described second frame of video and described second video
The difference of the Presentation Time Stamp of frame.
Further, described device also includes that stability parameter determines unit and adjustment unit.
Stability parameter determines unit (not shown), for determining according to described predicting unit
The first transmission jitter and the second transmission jitter, determine the stability of network for transmitting frame of video
Parameter.
According to described stability parameter, adjustment unit (not shown), for determining that unit determines
Stability parameter adjust the plurality of frame of video number.
Further, described stability parameter determine unit specifically for calculate described stochastic variable with
The meansigma methods of the difference square of described mathematical expectation obtains described variance of a random variable, by described side
Difference is as the stability parameter of the network for transmitting frame of video.
Further, described adjustment unit is specifically for correspondingly determining institute according to the value of described variance
State the number of multiple frame of video, wherein, the corresponding big the plurality of video of the value of big described variance
The number of frame.
Further, described predicting unit is specifically for basis: J=Δ time-Δ PTS determines described many
In individual frame of video, arbitrary frame of video is relative to the first transmission jitter of its previous frame of video received,
Wherein, described J in being the plurality of frame of video arbitrary frame of video relative to its previous receive regard
Frequently the first transmission jitter of frame, described Δ time is that in the plurality of frame of video, arbitrary frame of video is relative
In the difference receiving the time of its previous frame of video received, described Δ PTS is the plurality of regarding
Frequently in frame arbitrary frame of video relative to the difference of the Presentation Time Stamp of its previous frame of video received.
Use the technical scheme of the embodiment of the present invention, according to including the first frame of video of being currently received
The first transmission jitter of its previous frame of video received it is respectively relative in interior multiple frame of video,
Prediction receives the second transmission jitter of next frame of video of described first frame of video；And according to described
Two transmission jitter determine from the reproduction time of described second frame of video to playing described second frame of video
The waiting time of next frame of video, thus feed back to regard by network jitter (the i.e. first transmission jitter)
Frequently during the output of frame controls, when dynamically adjusting the output of frame of video to be output according to current network conditions
Machine, thus reduce the probability of buffer overflow.
Embodiment three
The present embodiment provides a kind of video playing terminal equipment, and described terminal unit includes such as embodiment
Video playback described in two controls device.
Use the technical scheme of the embodiment of the present invention, according to including the first frame of video of being currently received
The first transmission jitter of its previous frame of video received it is respectively relative in interior multiple frame of video,
Prediction receives the second transmission jitter of next frame of video of described first frame of video；And according to described
Two transmission jitter determine from the reproduction time of described second frame of video to playing described second frame of video
The waiting time of next frame of video, thus feed back to regard by network jitter (the i.e. first transmission jitter)
Frequently during the output of frame controls, when dynamically adjusting the output of frame of video to be output according to current network conditions
Machine, thus reduce the probability of buffer overflow.
Above-mentioned the method according to the invention can realize in hardware, firmware, or is implemented as depositing
Store up the software in record medium (such as CD ROM, RAM, floppy disk, hard disk or magneto-optic disk)
Or computer code, or be implemented through original storage that network downloads at remotely record medium or
In nonvolatile machine readable media and the computer code in local recording medium will be stored in, from
And method described here can be stored in use general purpose computer, application specific processor or able to programme
Or the such software processes on the record medium of specialized hardware (such as ASIC or FPGA).Can
To understand, computer, processor, microprocessor controller or programmable hardware include storing or
Receive software or the storage assembly (such as, RAM, ROM, flash memory etc.) of computer code, when
When described software or computer code are by computer, processor or hardware access and execution, it is achieved
This processing method described.Additionally, when general purpose computer accesses for realizing the process being shown in which
Code time, general purpose computer is converted to for performing the process being shown in which by the execution of code
Special-purpose computer.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not
Be confined to this, any those familiar with the art in the technical scope that the invention discloses,
Change can be readily occurred in or replace, all should contain within protection scope of the present invention.Therefore, originally
The protection domain of invention should be as the criterion with described scope of the claims.
Claims (15)
1. a video playing control method, it is characterised in that described method includes:
Receive the first frame of video and insert buffer area；
It is respectively relative to its previous reception according to the multiple frame of video including described first frame of video
First transmission jitter of the frame of video arrived, it was predicted that receive next frame of video of described first frame of video
Second transmission jitter；
Obtain the reproduction time of the second frame of video of the up-to-date output of described buffer area；
Determine from the reproduction time of described second frame of video to playing institute according to described second transmission jitter
State the waiting time of next frame of video of the second frame of video.
Video playing control method the most according to claim 1, it is characterised in that described
According to the multiple frame of video including described first frame of video be respectively relative to its previous receive regard
Frequently the first transmission jitter of frame, it was predicted that receive the second biography of next frame of video of described first frame of video
The process of defeated shake includes:
Using described first transmission jitter as stochastic variable, according to described stochastic variable and corresponding general
Rate, calculates the mathematical expectation of described stochastic variable, using described mathematical expectation as described second
Transmission jitter.
Video playing control method the most according to claim 2, it is characterised in that described
Determine from the reproduction time of described second frame of video to playing described second according to described second transmission jitter
The process of the waiting time of next frame of video of frame of video includes:
According to:
Delta '=max (1, abs (delta+E+0.5) > 2*delta？2*delta:delta+E+0.5)
Determine and regard from the reproduction time of described second frame of video to next of described second frame of video of broadcasting
Frequently the waiting time of frame, wherein, delta ' is described waiting time, and E is the number of described stochastic variable
Learning expected value, delta is the Presentation Time Stamp and described the of next frame of video of described second frame of video
The difference of the Presentation Time Stamp of two frame of video.
Video playing control method the most according to claim 3, it is characterised in that described
It is respectively relative to it according to multiple frame of video including described first frame of video previous receive
First transmission jitter of frame of video, it was predicted that receive described first frame of video next frame of video second
After the process of transmission jitter, described method also includes:
According to described first transmission jitter and the second transmission jitter, determine the net for transmitting frame of video
The stability parameter of network；
The number of the plurality of frame of video is adjusted according to described stability parameter.
Video playing control method the most according to claim 4, it is characterised in that described
According to described first transmission jitter and the second transmission jitter, determine the steady of network for transmitting frame of video
The process of qualitative parameter includes:
The meansigma methods of the difference square calculating described stochastic variable and described mathematical expectation obtain described with
The variance of machine variable, using described variance as being used for transmitting the stability parameter of the network of frame of video.
Video playing control method the most according to claim 5, it is characterised in that described
Include according to the process of the number of the described stability parameter the plurality of frame of video of adjustment:
Value according to described variance correspondingly determines the number of the plurality of frame of video, wherein, big
The number of the corresponding big the plurality of frame of video of the value of described variance.
7., according to the video playing control method described in any one of claim 1 to 6, its feature exists
In, according to:
J=Δ time-Δ PTS
Determine that in the plurality of frame of video, arbitrary frame of video is relative to its previous frame of video received
First transmission jitter, wherein, described J be in the plurality of frame of video arbitrary frame of video relative to it
First transmission jitter of the previous frame of video received, described Δ time is in the plurality of frame of video
Arbitrary frame of video is relative to the difference receiving the time of its previous frame of video received, described Δ PTS
During for frame of video arbitrary in the plurality of frame of video relative to the display of its previous frame of video received
Between stamp difference.
8. a video playback controls device, it is characterised in that described device includes:
Receive unit, for receiving the first frame of video and inserting buffer area；
Predicting unit, for according to including the first frame of video that described reception unit receives
Multiple frame of video are respectively relative to the first transmission jitter of its previous frame of video received, it was predicted that connect
Receive the second transmission jitter of next frame of video of described first frame of video；
Reproduction time acquiring unit, for obtaining the second frame of video of the up-to-date output of described buffer area
Reproduction time；
Control unit, determines from described for the second transmission jitter obtained according to described predicting unit
The reproduction time of described second frame of video that reproduction time acquiring unit obtains regards to playing described second
Frequently the waiting time of next frame of video of frame.
Video playback the most according to claim 8 controls device, it is characterised in that described pre-
Survey unit specifically for using described first transmission jitter as stochastic variable, according to described stochastic variable
Probability with corresponding, calculates the mathematical expectation of described stochastic variable, is made by described mathematical expectation
For described second transmission jitter.
Video playback the most according to claim 9 controls device, it is characterised in that described
Control unit is specifically for according to delta '=max (1, abs (delta+E+0.5) > 2*delta？2*
Delta:delta+E+0.5) determine and regard to playing described second from the reproduction time of described second frame of video
Frequently the waiting time of next frame of video of frame, wherein, delta ' is described waiting time, and E is described
The mathematical expectation of stochastic variable, when delta is the display of next frame of video of described second frame of video
Between the difference of stamp and the Presentation Time Stamp of described second frame of video.
11. video playback according to claim 10 control device, it is characterised in that described
Device also includes:
Stability parameter determines unit, for the first transmission jitter determined according to described predicting unit
With the second transmission jitter, determine the stability parameter of network for transmitting frame of video；
According to described stability parameter, adjustment unit, for determining that the stability parameter that unit determines is adjusted
The number of whole the plurality of frame of video.
12. video playback according to claim 11 control device, it is characterised in that described
Stability parameter determines that unit is specifically for calculating the difference of described stochastic variable and described mathematical expectation
Square meansigma methods obtain described variance of a random variable, described variance is transmitted video as being used for
The stability parameter of the network of frame.
13. video playback according to claim 12 control device, it is characterised in that described
Adjustment unit specifically for correspondingly determining the number of the plurality of frame of video according to the value of described variance,
Wherein, the number of the corresponding big the plurality of frame of video of the value of big described variance.
14. according to Claim 8 to the video playback control device described in 13 any one, its feature
Being, described predicting unit is specifically for basis: J=Δ time-Δ PTS determines the plurality of frame of video
In arbitrary frame of video relative to the first transmission jitter of its previous frame of video received, wherein, institute
State J be in the plurality of frame of video arbitrary frame of video relative to the of its previous frame of video received
One transmission jitter, described Δ time is that in the plurality of frame of video, arbitrary frame of video is previous relative to it
The difference receiving the time of the frame of video received, described Δ PTS is to appoint in the plurality of frame of video
One frame of video is relative to the difference of the Presentation Time Stamp of its previous frame of video received.
15. 1 kinds of video playing terminal equipment, it is characterised in that described terminal unit includes such as power
Profit requires that the video playback described in 8 to 14 any one controls device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242904.4A CN105847967A (en) | 2016-04-18 | 2016-04-18 | Video playback control method, device and terminal equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242904.4A CN105847967A (en) | 2016-04-18 | 2016-04-18 | Video playback control method, device and terminal equipment |
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| CN105847967A true CN105847967A (en) | 2016-08-10 |
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| CN201610242904.4A Pending CN105847967A (en) | 2016-04-18 | 2016-04-18 | Video playback control method, device and terminal equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385620A (en) * | 2016-10-25 | 2017-02-08 | 浙江红苹果电子有限公司 | Data smoothing and outputting method based on streaming media |
| CN111225243A (en) * | 2020-01-20 | 2020-06-02 | 中南大学 | Video block scheduling method and system |
-
2016
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385620A (en) * | 2016-10-25 | 2017-02-08 | 浙江红苹果电子有限公司 | Data smoothing and outputting method based on streaming media |
| CN106385620B (en) * | 2016-10-25 | 2019-06-21 | 浙江红苹果电子有限公司 | A kind of data smoothing output method based on Streaming Media |
| CN111225243A (en) * | 2020-01-20 | 2020-06-02 | 中南大学 | Video block scheduling method and system |
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