CN108055250A - Video play device, method and terminal - Google Patents
Video play device, method and terminal Download PDFInfo
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- CN108055250A CN108055250A CN201711251413.7A CN201711251413A CN108055250A CN 108055250 A CN108055250 A CN 108055250A CN 201711251413 A CN201711251413 A CN 201711251413A CN 108055250 A CN108055250 A CN 108055250A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/764—Media network packet handling at the destination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a kind of video play device, method and terminals.Device includes：Canvas modules, for judging whether the second video to be played when playing the first video；If there are during the second video to be played, judge whether the second video to be played meets default download condition；Download module is connected with Canvas modules, for when the second video to be played meets default download condition, downloading and caching the second video；Playing module is connected with download module, is played out for the first video to be switched to the second video according to default switching condition.By video play device, method and the terminal of the present invention, it can be achieved that the seamlessly transitting of video, the seamless switching of video and seamless switching resolution ratio, and then the fluency and user experience of video playing are improved, reduce user and wait.
Description
Technical field
The present invention relates to video technique field, more particularly to a kind of video play device, method and terminal.
Background technology
At present, when playing video, it is often necessary to played in order or switching resolution ratio are carried out, and it is suitable in correlation technique
The scheme that sequence plays is to start to download after the video playing being currently played is over to need second of played in order to regard
Frequently, the scheme for switching resolution ratio is when needing to switch resolution ratio, switches resolution ratio immediately.And the played in order in correlation technique
Usually since the next video of download takes longer and leads to not the lower video of smoothly played in order, user waits longer scheme
Time, and since player is present with prolonged pause when switching resolution ratio immediately, thus the switching in correlation technique is differentiated
The scheme of rate also result in can not seamless switching resolution ratio, it is necessary to user wait the long period.And it is asked in correlation technique above-mentioned
Topic is but without corresponding solution.
The content of the invention
In view of this, a technical problem to be solved of the embodiment of the present invention fills how to provide a kind of video playing
It puts, method and terminal, to realize the seamlessly transitting of video, the seamless switching of video and seamless switching resolution ratio, and then improves and regard
The fluency and user experience that frequency plays reduce user and wait.
The present invention provides a kind of video play device, including：
Canvas modules, for judging whether the second video to be played when playing the first video；If in the presence for the treatment of
During the second video played, judge whether second video to be played meets default download condition；
Download module is connected with the Canvas modules, described pre- for meeting in second video to be played
If download condition when, download and cache second video；
The playing module is connected with the download module, for being regarded according to default switching condition by described first
Frequency is switched to second video and plays out, wherein, the default switching condition terminates including the first video playing, second
The buffer data size of video reaches default cache threshold.
Further, the playing module is additionally operable to：
Judge the broadcast state of first video；
When the broadcast state of first video meets and imposes a condition, first video is switched to described second and is regarded
Frequency plays out.
Further, the playing module is additionally operable to：
Judge the buffer status of second video；
When the buffer data size of second video reaches default cache threshold, first video is switched to institute
The second video is stated to play out.
Further, the playing module is additionally operable to：
Stop playing first video, from the beginning play second video；
With or
Stop playing first video, second video is commenced play out from the position of the stopping of first video.
Further, the Canvas modules are additionally operable to：
Judge whether to receive the switching command for switching second video, second video and first video
Content is identical and resolution ratio is different；
Or
Judge whether the processing state of first video meets default download condition；
Wherein, the processing state includes：Demultiplexing progress, downloading rate, the residual time length played.
Further, the Canvas modules are additionally operable at least one of following：
When the processing state is demultiplexing progress, judge whether that receiving demultiplexing completes instruction；
It determines to meet the default download condition when receiving described demultiplex when completion indicates；
Or
When the processing state is downloading rate, current downloading rate is obtained by monitoring network speed；
Judge whether the downloading rate is downloaded less than default first downloading rate threshold value or higher than default second
Rate；
When less than the first downloading rate threshold value or higher than second downloading rate, determining to meet described default
Download condition, wherein, when downloading rate is less than default first downloading rate threshold value, the resolution ratio of the second video is regarded less than first
The resolution ratio of frequency, the second video are identical with the content of the first video；When downloading rate is higher than default second downloading rate threshold value,
Second downloading rate threshold value is higher than the first downloading rate threshold value；The high resolution of second video is in the resolution ratio of the first video, and
Two videos are identical with the content of the first video；
Or
When residual time length of the processing state for broadcasting, the current play time of first video is read；
According to total playing duration of first video and the play time, when determining the residue of first video
It is long whether to be less than default duration threshold value；
If less than the default duration threshold value, it is determined that meet the default download condition.
Further, described device further includes：Played in order interface or switching code rate interface；
The played in order interface is connected with the Canvas modules, and the selection described second for receiving input regards
The selection instruction of frequency；Or
The switching code rate interface is connected with the Canvas modules, and the switching command is inputted for receiving.
Further, the download module includes：
First I/O module and the second I/O module；
The playing module includes the first decoder, the first renderer being connected with first decoder, the second solution
Code device and the second renderer being connected with second decoder；
First I/O module is used to download first video；
Second I/O module is used to download second video；
First decoder is used to be decoded first video；
First renderer is used to render decoded first video；
Second decoder is used to be decoded second video；
Second renderer is used to render decoded second video.
Further, described device further includes：
First filter corresponding with first I/O module, the second filter corresponding with second I/O module；
The first filter is connected respectively with first I/O module and first decoder, for described
First video is demultiplexed；
Second filter is connected respectively with second I/O module and second decoder, for described
Second video is demultiplexed.
Further, the Canvas modules are additionally operable to：
When receiving the request for downloading first video, the first IO is created according to the link of first video
Module, the first filter, and create first decoder and first renderer and meeting the switching item
During part, first I/O module, the first filter, first decoder and first renderer are removed, and is created
Second decoder and second renderer；
When meeting the default download condition, second I/O module and second filter are created.
The present invention also provides a kind of video broadcasting method, including：
The second video to be played is judged whether when playing the first video；
If there are during the second video to be played, judge whether second video to be played meets default lower carrier strip
Part；
When second video to be played meets the default download condition, download and cache described second and regard
Frequently；
First video is switched to second video according to default switching condition to play out, wherein, it is described
Default switching condition terminates including the first video playing, the buffer data size of the second video reaches default cache threshold.
Further, it is described first video is switched to by second video according to default switching condition to broadcast
Put including：
Judge the broadcast state of first video；
When the broadcast state of first video meets and imposes a condition, first video is switched to described second and is regarded
Frequency plays out.
Further, it is described first video is switched to by second video according to default switching condition to broadcast
Put including：
Judge the buffer status of second video；
When the buffer data size of second video reaches default cache threshold, first video is switched to institute
The second video is stated to play out.
Further, first video is switched to second video according to default switching condition to broadcast
Release including：
Stop playing first video, from the beginning play second video；
With or
Stop playing first video, second video is commenced play out from the position of the stopping of first video.
Further, it is described to judge whether second video to be played meets default download condition and include：
Judge whether to receive the switching command for switching second video, second video and first video
Content is identical and resolution ratio is different；
Or
Judge whether the processing state of first video meets default download condition；
Wherein, the processing state includes：Demultiplexing progress, downloading rate, the residual time length played.
Further, judge first video processing state whether meet default download condition include it is following at least
One：
When the processing state is demultiplexing progress, judge whether that receiving demultiplexing completes instruction；
It determines to meet the default download condition when receiving described demultiplex when completion indicates；
Or
When the processing state is downloading rate, current downloading rate is obtained by monitoring network speed；
Judge whether the downloading rate is downloaded less than default first downloading rate threshold value or higher than default second
Rate；
When less than the first downloading rate threshold value or higher than second downloading rate, determining to meet described default
Download condition, wherein, when downloading rate is less than default first downloading rate threshold value, the resolution ratio of the second video is regarded less than first
The resolution ratio of frequency, the second video are identical with the content of the first video；When downloading rate is higher than default second downloading rate threshold value,
Second downloading rate threshold value is higher than the first downloading rate threshold value；The high resolution of second video is in the resolution ratio of the first video, and
Two videos are identical with the content of the first video；
Or
When residual time length of the processing state for broadcasting, the current play time of first video is read；
According to total playing duration of first video and the play time, when determining the residue of first video
It is long whether to be less than default duration threshold value；
If less than the default duration threshold value, it is determined that meet the default download condition.
The present invention also provides a kind of terminal, including：Video play device as any one of above-mentioned technical proposal.
The technical solution that the embodiment of the present invention provides can include the following benefits：
When playing first video, can by judging whether the second video, if in the presence of and meet the second video
Download condition is then downloaded and caches second video, and the first video playing terminates, the buffer data size of the second video reaches
During default cache threshold, the first video is automatically switched into the second video, as long as so as to reach the download condition of the second video
It begins to download the second video, and when meeting above-mentioned switching condition, then video switching is carried out, to realize the smoothed of video
It crosses, seamless switching video and seamless switching resolution ratio, and then is conducive to improve the fluency and user experience of video playing.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme is described in further detail.
Description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Example is applied together for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the block diagram according to a kind of video play device shown in an exemplary embodiment.
Fig. 2 is the block diagram according to another video play device shown in an exemplary embodiment.
Fig. 3 is the block diagram according to another video play device shown in an exemplary embodiment.
Fig. 4 is the block diagram according to another video play device shown in an exemplary embodiment.
Fig. 5 is the block diagram according to another video play device shown in an exemplary embodiment.
Fig. 6 is the flow chart according to a kind of video broadcasting method shown in an exemplary embodiment.
Fig. 7 A are the flow charts according to another video broadcasting method shown in an exemplary embodiment.
Fig. 7 B are the flow charts according to another video broadcasting method shown in an exemplary embodiment.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing 1 to 7B.It should be noted that：It is unless another
It illustrates outside, the component and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the present invention processed.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent attached drawing in a attached drawing.
The embodiment of the present invention can be applied to computer system/server, can be with numerous other universal or special calculating
System environments or configuration operate together.Suitable for be used together with computer system/server well-known computing system, ring
The example of border and/or configuration includes but not limited to：Personal computer system, server computer system, thin client, thick client
Machine, hand-held or laptop devices, the system based on microprocessor, set-top box, programmable consumer electronics, NetPC Network PC,
Minicomputer system large computer system and distributed cloud computing technology environment including any of the above described system, etc..
Computer system/server can be in computer system executable instruction (such as journey performed by computer system
Sequence module) general linguistic context under describe.In general, program module can include routine, program, target program, component, logic, number
According to structure etc., they perform specific task or realize specific abstract data type.Computer system/server can be with
Implement in distributed cloud computing environment, in distributed cloud computing environment, task is long-range by what is be linked through a communications network
Manage what equipment performed.In distributed cloud computing environment, program module can be located at the Local or Remote meter for including storage device
On calculation system storage medium.
At present, when playing video, if played in order, previous video broadcasting, which is over, just to start to download and need to sequentially broadcast
The next video put, but take longer, thus the played in order scheme in correlation technique, Wu Faping due to downloading next video
The sliding ground lower video of played in order, user wait the long period；And when switching resolution ratio, it will usually switch immediately, this just leads
Player is caused to be present with prolonged pause, thus also result in can not be without seaming and cutting for the scheme of the switching resolution ratio in correlation technique
Resolution ratio is changed, it is necessary to which user waits the long period.
And the application is that the first video will finish not yet to finish by being completed in the first video demultiplexing
When begin to download and need the second video of played in order that can realize the download in advance of the second video, and then realize glibly,
The played in order of video is smoothly carried out, reduces the stand-by period of user；In addition, the application is not stood when switching resolution ratio
Switch but switch resolution ratio again after the second video cache is a certain amount of, it can be ensured that the second different video of resolution ratio prepares
Switch resolution ratio again after good, so, it can be achieved that smoothly carrying out resolution ratio switching.
As shown in Figure 1, the present invention provides a kind of video play device, including：
Canvas modules 101, for judging whether the second video to be played when playing the first video.If in the presence of
During second video to be played, judge whether the second video to be played meets default download condition.
Download module 102 is connected with Canvas modules 101, for the second video to be played meet it is default under
During carrier strip part, download and cache the second video.
Playing module 103 is connected with download module 102, for being switched the first video according to default switching condition
Played out to the second video, wherein, default switching condition include the first video playing terminate, the second video it is data cached
Amount reaches default cache threshold.
Canvas modules 101, can be by judging whether the second video, if in the presence of (such as when playing first video
User's selection has second video etc.), and meet the download condition of the second video, then it downloads and caches second video, and the
When one video playing terminates, the buffer data size of the second video reaches default cache threshold, the first video is automatically switched to
Second video as long as beginning to download the second video so as to reach the download condition of the second video, and is meeting above-mentioned switching item
During part, then video switching is carried out, to realize the seamlessly transitting of video, seamless switching video and seamless switching resolution ratio, Jin Eryou
Beneficial to the fluency and user experience for improving video playing.
In one embodiment, playing module 103 is additionally operable to：Judge the broadcast state of the first video；
When the broadcast state of the first video meets and imposes a condition, the first video is switched to the second video and is played out.
In one embodiment, setting condition can be that above-mentioned first video playing terminates, and when the broadcasting of the first video
At the end of state is plays, played in order can be realized by the way that the first video is switched to the second video.
In one embodiment, playing module 103 is additionally operable to：Judge the buffer status of the second video；In the second video
When buffer data size reaches default cache threshold, the first video is switched to the second video and is played out.
When the buffer data size of the second video reaches default cache threshold, the first video can be switched to the second video
Play out, in this way, can be already prepared to carry out video switching again in the second video, such as with the resolution ratio of the first video not
With the buffered part of the second video after again carry out the switching of resolution ratio rather than when needing to switch resolution ratio immediately
Switch resolution ratio, continue to play video in this way, can smoothly switch other resolution ratio, realize taking over seamlessly for resolution ratio, reduce
The stand-by period of user.
In one embodiment, playing module 103 is additionally operable to：Stop playing the first video, from the beginning play the second video.It broadcasts
Amplification module 103 is specifically used for, when stopping playing the first video, the second video from the beginning being played, to realize played in order.
In one embodiment, playing module 103 is additionally operable to：Stop playing the first video, from the stopping of the first video
Position commences play out the second video.
Playing module 103 is specifically used for, when stopping playing the first video, since the position of the stopping of the first video continuing
Second video is broadcast, in seamless switching resolution ratio, breaks position continued broadcasting second video from the first video, avoids repeating
Broadcasting or broadcast leakage.
In one embodiment, Canvas modules 101 are additionally operable to：The switching for judging whether to receive the second video of switching refers to
Order, the second video is identical from the content of the first video and resolution ratio is different.
When playing the first video, can determine whether to receive above-mentioned switching command, when receiving switching command, explanation
User wishes that this means that needs start to download second video with other resolution ratio the second video of broadcasting, thus, it can be true
Surely receive switching command and meet download condition.
In one embodiment, Canvas modules 101 are additionally operable to：Judge the first video processing state whether meet it is default
Download condition.Wherein, processing state includes：Demultiplexing progress, downloading rate, the residual time length played.
When playing the first video, Canvas modules 101 also can determine whether the above-mentioned processing state of the first video meets
Default download condition, and above-mentioned processing state may indicate that whether the first video is in and will finish and not yet finish
State, thus, in order to smoothly realize played in order, can be based on that the setting of above-mentioned processing state is corresponding to download condition.
In one embodiment, Canvas modules 101 are additionally operable to：When the state of processing is demultiplexing progress, judge whether
It receives demultiplexing and completes instruction；It determines to meet default download condition when receiving to demultiplex when completion indicates.It regards when first
When the processing state of frequency is demultiplexing progress, it can determine whether to receive demultiplexing and complete instruction, if received, illustrate the
The demultiplexed completion of one video is read and is finished, the first video finishes soon, and due to existing second video (i.e.
User has selected the second video), this further illustrates that user it is expected the second video of played in order, so, it may be determined that meet and download
Condition, and demultiplexing completion can suitably be loaded second in advance when the first video does not finish as download condition and regarded
Frequently, in this way, when commencing play out the second video, due to being already prepared to the second video, thus, can glibly, smoothly carry out and regard
The played in order of frequency reduces the stand-by period of user, improves the viewing experience of user.
In one embodiment, Canvas modules 101 are additionally operable to：When the state of processing is downloading rate, pass through monitoring network
Speed obtains current downloading rate；Judge downloading rate whether less than default first downloading rate threshold value or higher than default
Second downloading rate；When less than the first downloading rate threshold value or higher than the second downloading rate, determining to meet default lower carrier strip
Part, wherein, when downloading rate is less than default first downloading rate threshold value, the resolution ratio of the second video is less than point of the first video
Resolution, the second video are identical with the content of the first video.When downloading rate is higher than default second downloading rate threshold value, under second
It carries rate-valve value and is higher than the first downloading rate threshold value.The high resolution of second video is in the resolution ratio of the first video, the second video
It is identical with the content of the first video.
When the processing state of the first video is downloading rate, if downloading rate is less than default first downloading rate threshold
Value, illustrates that current network speed is bad, thus, in order to realize the automatic switchover of resolution ratio, it may be determined that meet download condition.And download speed
When rate is less than default first downloading rate threshold value, the resolution ratio of the second video is less than the resolution ratio and the second video of the first video
It is identical with the content of the first video to be played out, it can be achieved that automatically switching to low resolution when network speed is bad, so as to the greatest extent
On the basis of may not influencing user experience, realize the smooth playing of video, smoothly carry out resolution ratio switching.
Correspondingly, when the processing state of the first video is downloading rate, if downloading rate is higher than the second downloading rate
Threshold value illustrates that current network speed is preferable, thus, in order to realize the automatic switchover of resolution ratio, it may be determined that meet download condition.And it downloads
When rate is higher than default second downloading rate threshold value, the high resolution of the second video is regarded in the resolution ratio of the first video and second
Frequency is identical with the content of the first video to be played out, it can be achieved that automatically switching to high-resolution when network speed is preferable, thus
On the basis of not influencing user experience as far as possible, realize video smooth playing, smoothly, seamlessly carry out resolution ratio switching.
In one embodiment, Canvas modules 101 are additionally operable to：When residual time length of the state of processing for broadcasting, read
The current play time of first video；According to the total playing duration and play time of the first video, the first video is determined
Whether residual time length is less than default duration threshold value；If less than default duration threshold value, it is determined that meet default download condition.
When the processing state of the first video is the residual time length played, if residual time length is less than default time threshold,
Illustrate that the first video will be finished and not yet finished, and due to existing second video (i.e. user has selected), this
Further illustrate that user it is expected the second video of played in order, so, it may be determined that meet download condition, and by the residual time length of broadcasting
Less than default duration threshold value as download condition, can start to download the second video when the first video will finish,
Equally achievable said effect, details are not described herein again.
In one embodiment, device further includes：Played in order interface.
Played in order interface is connected with Canvas modules 101, and the selection for receiving the second video of selection of input refers to
Order.
By order of addition playback interface, the selection instruction of the second video of input can be received so that Canvas modules 101
It can determine there are the second video, and then realized on the basis of played in order interface and download the second video in advance, in this way, being conducive to
The seamless switching of video, smooth broadcasting are carried out afterwards, and user is not required to wait.
In one embodiment, device further includes：Switching code rate interface.
Switching code rate interface is connected with Canvas modules 101, for receiving inputting switching command.
By switching code rate interface, the switching command of input can be received, and after the switching command is received, Canvas moulds
Block 101 can determine there are the second video, i.e., selection have from first video content is identical and video that resolution ratio is different, and then logical
It crosses in switching code rate interface basis and realizes and do not switch immediately when other resolution ratio play out but the needing to switch to
Two videos switch over again after being ready to, and still play the first video during this period, in this way, carrying out nothing after being conducive to
Seam ground smoothly switches resolution ratio, smooth broadcasting, reduces user and waits.
In addition, switching code rate interface meet it is above-mentioned " downloading rate be less than default first downloading rate threshold value.Second regards
The resolution ratio of frequency is less than the resolution ratio of the first video.Second video is identical with the content of the first video " and/or " downloading rate is high
In default second downloading rate threshold value.Second downloading rate threshold value is higher than the first downloading rate threshold value.The resolution of second video
Rate is higher than the resolution ratio of the first video.Second video is identical with the content of the first video " when can also be automatically triggered, in this way,
The second video of low resolution can be downloaded automatically when network speed is bad, when network speed is preferable, download high-resolution automatically
Video, to realize the seamless switching of resolution ratio automatically.
As shown in Fig. 2, in one embodiment, download module 102 includes：
First I/O module 1021 and the second I/O module 1022；
Playing module 103 include the first decoder 1031, be connected with the first decoder 1031 the first renderer 1032,
Second decoder 1033 and the second renderer 1034 being connected with the second decoder 1033.
First I/O module 1021 is for the first video of download；
Second I/O module 1022 is for the second video of download；
First decoder 1031 is used to be decoded the first video；
First renderer 1032 is used to render decoded first video；
Second decoder 1033 is used to be decoded the second video；
Second renderer 1034 is used to render decoded second video.
When downloading, decoding and render different video, different I/O modules, renderer and decoder can be used respectively, with
Mutual preempting resources are avoided, and respectively using different resources, it is also beneficial to rapidly carry out video download, decodes and render.
As shown in figure 3, in one embodiment, device further includes：
First filter 301 corresponding with the first I/O module, the second filter 302 corresponding with the second I/O module；
First filter 301 is connected respectively with the first I/O module and the first decoder, for being solved to the first video
Multiplexing；
Second filter 302, is connected respectively with the second I/O module and the second decoder, for being solved to the second video
Multiplexing.
First video and the second video have a set of independent resource, i.e., respectively have a set of I/O module, filter and decoding
Device and renderer, so as to be advantageously implemented the seamlessly transitting of video, seamless switching video and seamless switching resolution ratio, so that it is favourable
In the fluency and user experience that improve video playing.
In one embodiment, Canvas modules 101 are additionally operable to：
When receiving the request for downloading the first video, the first I/O module, the first mistake are created according to the link of the first video
Filter, and create the first decoder and the first renderer and when meeting switching condition, remove the first I/O module, the first mistake
Filter, the first decoder and the first renderer, and create the second decoder and the second renderer；
When meeting default download condition, the second I/O module and the second filter are created.
Canvas modules 101 are additionally operable to when downloading the first video, create the corresponding a set of resource of the first video, and full
When sufficient switching condition, such as the first video playing terminate or the buffer data size of the second video reaches default cache threshold, say
It is bright need to switch to the second video play out, thus, the second decoder and the second renderer can be created, and the carrier strip under satisfaction
During part, that is, start to create the second I/O module and the second filter, to download the second video.
It will be exemplified below realizing the specific steps of seamless played in order in the present invention：
For the order chain broadcast of player, external interface can be increased in player, when user has loaded first shadow
During piece, it is possible to the interface of player be called to load second video, after the completion of first video playing, the number of second video
According to being already prepared to.And switching flow can be：Player creates the io of download first, then calls sourcefilter (moneys
Source separator) parse the header of video, and the play position that seek is specified to user.After finishing playing for first, meeting
Sourcefilter (resource separation device), decocderfilter (decoder), renderfilter (renderer), player
Resource close fall, then re-create decoderFilter, RenderFilter, create play assembly line play out, and by
It is already prepared in second data of played in order at this time, so point is very short to the duration broadcast, is equivalent to the local text of broadcasting
Part.
Wherein, the specific playing flow of player is as follows in the embodiment of the present invention：
1) url (Uniform Resoure Locator, the unified resource for the video that player plays as needed first
Finger URL) type, create different download IO.
2) former data are read from local file or network, former data is parsed, analyzed video file format, judge to regard
Frequency type, calls different demultiplexing modules, and demultiplexing module obtains audio/video coding parameter, length of the video time from file
Etc. information, be then taken out coded audio data and video data encoder be sent to decoded portion, temporarily claim this coding source here
Data block is packet.
3) information that decoder is obtained using input terminal from source data calls different decoding library initializations；Then receive
The audio/video coding data that input terminal transmission comes, carry out audio decoder and video decoding respectively, and video decodes the data one come
As be YUV (by a kind of colour coding method used by eurovision system) or RGB (colour mixture model) data, be temporarily known as here
Picture, audio decoder decode the usually pcm data come.
4) audioRender (sound renderer), videoRender (video renderer) receive what decoded portion was sent
Picture and sample simultaneously shows that video, which is shown, generally uses some shape library, such as SDL, Xlib, DirectDraw,
OpengGL, FrameBuffer etc., audio output are the audio drivens sample writing systems, and sound card is sent by audio driven
It plays, available audio output has ALSA, OSS, SDL, DirectSound, WaveOut etc..
Below in conjunction with Fig. 4 technical solutions that the present invention will be described in detail：
As shown in figure 4, show a kind of broadcasting block diagram of player 400 in the embodiment of the present invention, wherein, playing frame
In each module effect it is as follows：
I/O module 401:It is mainly used for downloading file and provides downloading data for SourceFilter.
Asset filter 402 (SourceFilter)：It is mainly used for analyzing video file format, demultiplexes media file
Stream supports seek operations and reads file.
Video Decoder 403 (VideoDecoder):It is mainly used for decoding video frame, exports the video original number of yuv420
According to.
Audio decoder 404 (AudioDecoder):It is mainly used for decoding audio frame, exports the audio original number for pcm
According to.
Video renderer 405 (VideoRender):For receiving yuv data and showing.
Sound renderer 406 (AudioRender)：For receiving pcm (Pulse Code Modulation, pulse code
Modulation) data and pass through sound card and play back.
Below in conjunction with Fig. 5 technical solutions that the present invention will be described in detail：
As shown in figure 5, show the broadcasting block diagram of another player 500 in the embodiment of the present invention, wherein, the broadcasting
500 specific workflow of device is if step A001 is to shown in step 009：
Step A001：Player 500 calls the init interfaces in user interface 501 first, is initialized.
Step A002：Video url is transmitted to player, and creates download by the prepare interfaces in user interface 501
IO505 (multiple I/O modules can be created by wherein, downloading in IO505, and Fig. 5 is a kind of mode).
Step A003：(canvas interfaces are responsible for message to the canvas modules being connected with Jni interface interfaces 502
Processing and the scheduling of modules) 503 according to the judgement of url types it is to create FFSource5041 or establishment
PPSource5042, calls FFMpeg demux if FFsource5041 is created, and order is read depending on taking frame data, video data
Video Decoder 5062 is given, voice data gives audio decoder 5061.
Step A004：Video data passes through VideoDecoder (i.e. Video Decoder 5062), and it (is by Europe to decode YUV
A kind of colour coding method used by the television system of continent) form video data, be then passed to VideoRender (i.e. videos
Renderer 5072) queue etc. is to be shown.
Step A005：Voice data passes through AudioDecoder (i.e. audio decoder 5061), decodes voice data PCM
(Pulse Code Modulation, pulse code modulation) is then passed to AudioRender (i.e. sound renderer 5071) team
Row etc. are to be played.
Step A006：Sound card can be according to the frequency of setting, channel numbers and sound digit, to AudioRender (i.e.
Sound renderer 5071) request data.
Step A007：Sound can be played according to the rate of sound card during broadcasting, video council isochronous audio, and such video and audio can be same
Step plays.
Step A008：Played in order function is newly increased, because the I/O module of next video and SourceFilter are (i.e.
Asset filter) and playing video I/O module may it is different, SoureFilter may also be different, it is achieved that
Shi Buzai considered whether as original I/O module, and io and corresponding is re-created according to the url of next video
SourceFilter, and get out played data.In this way, when finishing during first video, stop playing first video,
And create new videoDecoder (Video Decoder 5062), AudioDecoder (audio decoder 5061),
VideoRender (video renderer 5072), AudioRender (sound renderer 5071), create new broadcasting assembly line, together
When shifted to an earlier date all set due to second video, so order broadcasts the speed of second video quickly, reduce and a little arrive
The duration broadcast.
Step A009：Switching resolution interface is newly increased as played in order, is created newly according to the new url that plays
IO, and new SourceFilter is created, IO is responsible for downloading data, and Demux is responsible for controlling position and the reading of downloading data
Video/audio after DSR, turns off first video flowing, and initialize videoDecoder, audioDecoder,
VideoRender, AudioRender create new broadcasting assembly line, has a difference with played in order here：Played in order
When etc. after the completion of first video playing, when just going to close first video, and switching resolution ratio, after DSR, seek
(search) is then just closed first broadcasting, is switched to designated position (first the current of player stops play position)
Second video playing.Here temporarily without considering stricti jurise frame alignment condition.That is played in order and switching resolution ratio
Difference lies in wait until second video data when having to wait for first video playing during played in order to complete, and switching resolution ratio
It can switch after being ready to.
Wherein, the flow that reports an error in above-mentioned steps A008 during played in order can be as follows：
Played in order interface is called, starts a thread in canvas modules, returns immediately after.
The thread can create different source and IO according to the url of video, and source and IO at this time are opposite
The independent and broadcasting logic of first video and canvas is unrelated.If failed at this point, second segment video loads,
It simply does and marks, when playing first segment video, when canvas loading source reports an error again, and upper strata is notified to play the
Two segment faults, and the io for stopping second thread is created and source is created.
Wherein, the flow that reports an error in above-mentioned steps A009 during switching code rate interface can be as follows：
Switching code rate interface is called, starts a thread in canvas, returns immediately after, thread can be according to video
Url creates different source and IO, source and IO at this time be relatively independent and first video and
The broadcasting logic of canvas is unrelated, and if the failure of second segment video loading at this time, returns to canvas, directly report an error place
Reason, and stop the broadcasting of first video.
As shown in fig. 6, the present invention also provides a kind of video broadcasting method, the method comprising the steps of S601 to step S604：
In step s 601, the second video to be played is judged whether when playing the first video.
In step S602, if pre- there are during the second video to be played, judging whether the second video to be played meets
If download condition.
In step S603, when the second video to be played meets default download condition, download and cache second and regard
Frequently.
In step s 604, the first video is switched to the second video according to default switching condition to play out, wherein,
Default switching condition terminates including the first video playing, the buffer data size of the second video reaches default cache threshold.
In one embodiment, the first video is switched to by the second video according to default switching condition and plays out bag
It includes：Judge the broadcast state of the first video；When the broadcast state of the first video meets and imposes a condition, the first video is switched to
Second video plays out.
In one embodiment, the first video is switched to by the second video according to default switching condition and plays out bag
It includes：Judge the buffer status of the second video；When the buffer data size of the second video reaches default cache threshold, first is regarded
Frequency is switched to the second video and plays out.
As shown in Figure 7 A, in one embodiment, the step S604 shown in above-mentioned Fig. 6, i.e., according to default switching condition
It first video is switched to the second video plays out and further include：
In step s 701, stop playing the first video, from the beginning play the second video.
As shown in Figure 7 B, in one embodiment, the step S604 shown in above-mentioned Fig. 6, i.e., according to default switching condition
It first video is switched to the second video plays out and further include：
In step S702, stop playing the first video, the second video is commenced play out from the position of the stopping of the first video.
In one embodiment, judge whether the second video to be played meets default download condition and include：
Judge whether to receive the switching command for switching the second video, the second video is identical with the content of the first video and divides
Resolution is different.
In one embodiment, judge whether the second video to be played meets default download condition and include：
Judge whether the processing state of the first video meets default download condition.
Wherein, processing state includes：Demultiplexing progress, downloading rate, the residual time length played.
In one embodiment, judge whether the processing state of the first video meets default download condition and include：Work as place
When reason state is demultiplexing progress, judge whether that receiving demultiplexing completes instruction；When receive demultiplexing complete instruction when it is true
Surely default download condition is met.
In one embodiment, judge whether the processing state of the first video meets default download condition and include：Work as place
When reason state is downloading rate, current downloading rate is obtained by monitoring network speed；Judge downloading rate whether less than default
First downloading rate threshold value or higher than default second downloading rate.
When less than the first downloading rate threshold value or higher than the second downloading rate, determining to meet default download condition,
In, when downloading rate is less than default first downloading rate threshold value, the resolution ratio of the second video is less than the resolution ratio of the first video,
Second video is identical with the content of the first video.When downloading rate is higher than default second downloading rate threshold value, second downloads speed
Rate threshold value is higher than the first downloading rate threshold value.The high resolution of second video is in the resolution ratio of the first video, the second video and
The content of one video is identical.
In one embodiment, judge whether the processing state of the first video meets default download condition and include：Work as place
When reason state is the residual time length played, the current play time of the first video is read；During according to total broadcasting of the first video
Long and play time, determines whether the residual time length of the first video is less than default duration threshold value；If less than default duration
Threshold value, it is determined that meet default download condition.
The present invention also provides a kind of terminal, including：Such as the video play device of any one of above-mentioned technical proposal.
The achievable effect of the terminal is similar with the achievable effect of above-mentioned video play device, and details are not described herein again.
In addition, each embodiment is described by the way of progressive in this specification, each embodiment stresses
It is the difference with other embodiments, the same or similar part cross-reference between each embodiment.For device
For embodiment, since it is substantially corresponding with embodiment of the method, so description is fairly simple, related part is implemented referring to method
The part explanation of example.
Methods and apparatus of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Software, hardware, firmware any combinations come realize the present invention method and system.The said sequence of the step of for the method
Merely to illustrate, the step of method of the invention, is not limited to order described in detail above, special unless otherwise
It does not mentionlet alone bright.In addition, in some embodiments, the present invention can be also embodied as recording program in the recording medium, these programs
Machine readable instructions including being used to implement the method according to the invention.Thus, the present invention also covering stores to perform basis
The recording medium of the program of the method for the present invention.
Description of the invention provides for the sake of example and description, and is not exhaustively or by the present invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those of ordinary skill in the art is enable to manage
The present invention is solved so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (17)
1. a kind of video play device, which is characterized in that including：
Canvas modules, for judging whether the second video to be played when playing the first video；If there are to be played
The second video when, judge whether second video to be played meets default download condition；
Download module is connected with the Canvas modules, described default for meeting in second video to be played
During download condition, download and cache second video；
The playing module is connected with the download module, for being cut first video according to default switching condition
Second video is changed to play out, wherein, the default switching condition terminates including first video playing, is described
The buffer data size of second video reaches default cache threshold.
2. the apparatus according to claim 1, which is characterized in that the playing module is additionally operable to：
Judge the broadcast state of first video；
First video broadcast state meet impose a condition when, by first video be switched to second video into
Row plays.
3. the apparatus according to claim 1, which is characterized in that the playing module is additionally operable to：
Judge the buffer status of second video；
When the buffer data size of second video reaches default cache threshold, first video is switched to described
Two videos play out.
4. the apparatus according to claim 1, which is characterized in that the playing module is additionally operable to：
Stop playing first video, from the beginning play second video；
With or
Stop playing first video, second video is commenced play out from the position of the stopping of first video.
5. the apparatus according to claim 1, which is characterized in that
The Canvas modules are additionally operable to：
Judge whether to receive the switching command for switching second video, the content of second video and first video
Identical and resolution ratio is different；
Or
Judge whether the processing state of first video meets default download condition；
Wherein, the processing state includes：Demultiplexing progress, downloading rate, the residual time length played.
6. device according to claim 5, which is characterized in that the Canvas modules are additionally operable at least one of following：
When the processing state is demultiplexing progress, judge whether that receiving demultiplexing completes instruction；
It determines to meet the default download condition when receiving described demultiplex when completion indicates；
Or
When the processing state is downloading rate, current downloading rate is obtained by monitoring network speed；
Judge the downloading rate whether less than default first downloading rate threshold value or higher than default second downloading rate；
When less than the first downloading rate threshold value or higher than second downloading rate, determining to meet the default download
Condition, wherein, when downloading rate is less than default first downloading rate threshold value, the resolution ratio of the second video is less than the first video
Resolution ratio, the second video are identical with the content of the first video；When downloading rate is higher than default second downloading rate threshold value, second
Downloading rate threshold value is higher than the first downloading rate threshold value；The high resolution of second video is regarded in the resolution ratio of the first video, second
Frequency is identical with the content of the first video；
Or
When residual time length of the processing state for broadcasting, the current play time of first video is read；
According to total playing duration of first video and the play time, determining the residual time length of first video is
It is no to be less than default duration threshold value；
If less than the default duration threshold value, it is determined that meet the default download condition.
7. device according to claim 5, which is characterized in that described device further includes：Played in order interface or switching
Code check interface；
The played in order interface is connected with the Canvas modules, for receiving selection second video of input
Selection instruction；Or
The switching code rate interface is connected with the Canvas modules, and the switching command is inputted for receiving.
8. device according to any one of claim 1 to 7, which is characterized in that
The download module includes：
First I/O module and the second I/O module；
The first renderer, the second decoder that the playing module includes the first decoder, is connected with first decoder
The second renderer being connected with second decoder；
First I/O module is used to download first video；
Second I/O module is used to download second video；
First decoder is used to be decoded first video；
First renderer is used to render decoded first video；
Second decoder is used to be decoded second video；
Second renderer is used to render decoded second video.
9. device according to claim 8, which is characterized in that described device further includes：
First filter corresponding with first I/O module, the second filter corresponding with second I/O module；
The first filter is connected respectively with first I/O module and first decoder, for described first
Video is demultiplexed；
Second filter is connected respectively with second I/O module and second decoder, for described second
Video is demultiplexed.
10. device according to claim 9, which is characterized in that
The Canvas modules are additionally operable to：
When receiving the request for downloading first video, the first IO moulds are created according to the link of first video
Block, the first filter, and create first decoder and first renderer and meeting the switching condition
When, first I/O module, the first filter, first decoder and first renderer are removed, and creates institute
State the second decoder and second renderer；
When meeting the default download condition, second I/O module and second filter are created.
11. a kind of video broadcasting method, which is characterized in that including：
The second video to be played is judged whether when playing the first video；
If there are during the second video to be played, judge whether second video to be played meets default download condition；
When second video to be played meets the default download condition, download and cache second video；
First video is switched to second video according to default switching condition to play out, wherein, it is described default
Switching condition terminate including first video playing, the buffer data size of second video reaches default caching threshold
Value.
12. according to the method for claim 11, which is characterized in that described to be regarded according to default switching condition by described first
Frequency be switched to second video play out including：
Judge the broadcast state of first video；
First video broadcast state meet impose a condition when, by first video be switched to second video into
Row plays.
13. according to the method for claim 11, which is characterized in that described to be regarded according to default switching condition by described first
Frequency be switched to second video play out including：
Judge the buffer status of second video；
When the buffer data size of second video reaches default cache threshold, first video is switched to described
Two videos play out.
14. according to the method for claim 11, which is characterized in that regarded according to default switching condition by described first
Frequency, which is switched to second video and plays out, to be further included：
Stop playing first video, from the beginning play second video；
With or
Stop playing first video, second video is commenced play out from the position of the stopping of first video.
15. the method according to any one of claim 11 to 14, which is characterized in that
It is described to judge whether second video to be played meets default download condition and include：
Judge whether to receive the switching command for switching second video, the content of second video and first video
Identical and resolution ratio is different；
Or
Judge whether the processing state of first video meets default download condition；
Wherein, the processing state includes：Demultiplexing progress, downloading rate, the residual time length played.
16. according to the method for claim 15, which is characterized in that judge whether the processing state of first video meets
Default download condition includes at least one of following：
When the processing state is demultiplexing progress, judge whether that receiving demultiplexing completes instruction；
It determines to meet the default download condition when receiving described demultiplex when completion indicates；
Or
When the processing state is downloading rate, current downloading rate is obtained by monitoring network speed；
Judge the downloading rate whether less than default first downloading rate threshold value or higher than default second downloading rate；
When less than the first downloading rate threshold value or higher than second downloading rate, determining to meet the default download
Condition, wherein, when downloading rate is less than default first downloading rate threshold value, the resolution ratio of the second video is less than the first video
Resolution ratio, the second video are identical with the content of the first video；When downloading rate is higher than default second downloading rate threshold value, second
Downloading rate threshold value is higher than the first downloading rate threshold value；The high resolution of second video is regarded in the resolution ratio of the first video, second
Frequency is identical with the content of the first video；
Or
When residual time length of the processing state for broadcasting, the current play time of first video is read；
According to total playing duration of first video and the play time, determining the residual time length of first video is
It is no to be less than default duration threshold value；
If less than the default duration threshold value, it is determined that meet the default download condition.
17. a kind of terminal, which is characterized in that including：Video play device as any one of claims 1 to 10.
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| CN201711251413.7A CN108055250A (en) | 2017-12-01 | 2017-12-01 | Video play device, method and terminal |
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| CN201711251413.7A CN108055250A (en) | 2017-12-01 | 2017-12-01 | Video play device, method and terminal |
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