CN106412677A - Generation method and device of playback video file - Google Patents
Generation method and device of playback video file Download PDFInfo
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- CN106412677A CN106412677A CN201610964634.8A CN201610964634A CN106412677A CN 106412677 A CN106412677 A CN 106412677A CN 201610964634 A CN201610964634 A CN 201610964634A CN 106412677 A CN106412677 A CN 106412677A
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- video
- frame
- flowing fragment
- stream data
- video flowing
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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
- H04N21/4334—Recording operations
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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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- 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, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
Abstract
The invention discloses a generation method and device of a playback video file. The method comprises that video stream data is grabbed, a video stream fragment is generated according to the grabbed video stream data, the generated video stream fragment is set, and the set video stream fragment is stored and further called during playback. Compared with the prior art in which the playback video file is not generated before live streaming is completed, the video stream fragment that can be called and played back by a user can be generated in the live streaming process, the problem of playback delay of the live streaming video is solved effectively, time to wait for playing back the live streaming video is shortened, and user experience is ensured. The video stream fragment is set, the size of the video stream fragment is relatively small, so that the video stream fragment of the relatively small size can be set in shorter time, namely, the whole video stream data is set basically after that live streaming is completely, and the problem of playback delay of the live streaming video is solved further.
Description
Technical field
The present invention relates to technical field of information processing is and in particular to a kind of generation method of playback video file, Yi Jiyi
Plant the generating means of playback video file.
Background technology
Flow data is can be in the data of transmission over networks in the way of using stream transmission, and large-scale website system generally relies on
It is transmitted in content distributing network (Content Delivery Network, CDN) stream data.
During net cast, net cast end pushes to the video stream data of real-time recording in content distributing network
Node server, node server can carry out caching process to the video stream data receiving, and after net cast terminates, will cache
All video stream datas cache playback video file for specified format, such as mp4 file, call for user and review.
But, playback video file of the prior art is to generate after net cast terminates, and user's only wait regards
Frequently from node server calls can there is playback delay and ask to playing back video file, therefore live video after live end
Topic, Consumer's Experience is poor.
In addition, for making playback video file be applied to multiple playing platforms, node server can enter to playback video file
Row format is changed, and converts thereof into the form of multiple playing platforms all supports.However, due to play back video file size relatively
Greatly, format conversion operation needs to consume a longer time, the format conversion operation being therefore directed to playback video file can add further
The playback delay problem of deep live video, reduces Consumer's Experience further.
Content of the invention
In view of the above problems it is proposed that the present invention so as to provide one kind overcome the problems referred to above or at least in part solve on
State the generation method of playback video file of problem and the corresponding generating means playing back video file.
According to one aspect of the present invention, there is provided a kind of generation method of playback video file, including：
Crawl video stream data simultaneously generates video flowing fragment according to the video stream data of crawl；
Setting processing is carried out to the video flowing fragment being currently generated；
Video flowing fragment after preservation is processed is called for during playback.
Alternatively, described crawl video stream data and according to crawl video stream data generate video flowing fragment after,
Methods described also includes：
Add the first association identification for described video flowing fragment；
Multiple continuous video flowing fragments, and the video flowing fragment composition by association are associated according to described first association identification
Playback video file.
Alternatively, described video flowing fragment is made up of at least one video pictures group.
Alternatively, described crawl video stream data and according to crawl video stream data generate video flowing fragment include：
Carried out in units of video pictures group according to pre-conditioned crawl video stream data and by the video stream data of crawl
Parsing；
At least one continuous video pictures group is stored as video flowing fragment.
Alternatively, described setting processing is carried out to the video flowing fragment being currently generated include：
Each video flowing fragment is converted to the setting form that mobile client can play.
Alternatively, described crawl video stream data and according to crawl video stream data generate video flowing fragment after,
Methods described also includes：
Search the problem frame of video of time migration in the video pictures group of described video flowing fragment；
Described problem frame of video is repaired.
Alternatively, in the video pictures group of the described video flowing fragment of described lookup, the problem frame of video of time migration includes：
The time difference of lookup and a upper frame of video exceeds the frame of video of given threshold.
Alternatively, described described problem frame of video is repaired before, methods described also includes：
Judge described problem frame of video as I frame or P frame.
Alternatively, described described problem frame of video is carried out repair include：
If described problem frame of video is P frame, delete described P frame and the P frame being contiguous therewith below.
Alternatively, described described problem frame of video is carried out repairing also including：
Described problem frame of video previous frame of video followed by slicing treatment, using described previous frame of video as first
Last video data frame of target video flow section；
Add the second association identification with next target video fragment for described first object video flowing fragment.
Alternatively, described described problem frame of video is carried out repair include：
If described problem frame of video is I frame, carried out slicing treatment before described I frame, using described I frame as the second mesh
First video data frame of mark video flowing fragment；
Add the second association identification with a upper target video fragment for described second target video flow section.
Alternatively, described second association identification be serial number, temporal information, the previous video segment of association and association
Afterwards a video segment at least one of.
According to another aspect of the present invention, there is provided a kind of playback video file generating means, including：
Video flowing fragment generation module, for capturing video stream data the video stream data generation video flowing according to crawl
Fragment；
Setting processing carries out module, for carrying out setting processing to the video flowing fragment being currently generated；
Video flowing fragment preserving module, the video flowing fragment after processing for preservation is called for during playback.
Alternatively, described device also includes：
First association identification add module, gives birth to in described crawl video stream data and according to the video stream data of crawl
After becoming video flowing fragment, add the first association identification for described video flowing fragment；
Video flowing fragment association module, for multiple continuous video flowing fragments are associated according to described first association identification,
And the video flowing fragment composition playback video file by association.
Alternatively, described video flowing fragment is made up of at least one video pictures group.
Alternatively, described video flowing fragment generation module includes：
Video stream data captures submodule, for according to pre-conditioned crawl video stream data；
Video stream data analyzing sub-module, for being solved the video stream data of crawl in units of video pictures group
Analysis；
Video flowing fragment sub-module stored, for being stored as video flowing fragment by least one continuous video pictures group.
Alternatively, described setting processing carries out module, specifically for each video flowing fragment is converted to mobile client
Playable setting form.
Alternatively, described device also includes：
Problem frame of video searching modul, generates in described crawl video stream data and according to the video stream data of crawl
After video flowing fragment, search the problem frame of video of time migration in the video pictures group of described video flowing fragment；
Problem frame of video repair module, for repairing to described problem frame of video.
Alternatively, described problem frame of video searching modul, specifically for searching with time difference of a upper frame of video beyond setting
Determine the frame of video of threshold value.
Alternatively, described device also includes：
Frame species judge module, for described described problem frame of video is repaired before, judge described problem regard
Frequency frame is I frame or P frame.
Alternatively, described problem frame of video repair module includes：
P frame deletion submodule, if being P frame for described problem frame of video, deleting described P frame and being contiguous therewith below
P frame.
Alternatively, described problem frame of video repair module also includes：
First slicing treatment carries out submodule, for the previous frame of video in described problem frame of video followed by section at
Reason, using described previous frame of video as first object video flowing fragment last video data frame；
Second association identification adds submodule, regards with next target for adding for described first object video flowing fragment
Second association identification of frequency fragment.
Alternatively, described problem frame of video repair module includes：
Second slicing treatment carries out submodule, if being I frame for described problem frame of video, carries out before described I frame
Slicing treatment, using described I frame as the second target video flow section first video data frame；
Second association identification increases submodule, regards with a upper target for adding for described second target video flow section
Second association identification of frequency fragment.
Alternatively, described second association identification be serial number, temporal information, the previous video segment of association and association
Afterwards a video segment at least one of.
According to the embodiment of the present invention, the video stream data uploading is carried out with grasping manipulation, and the video fluxion according to crawl
According to generation video flowing fragment, the chi of the complete video flow data belonging to video stream data being smaller in size than crawl of video flowing fragment
Very little, just generate playback video file after net cast terminates compared to prior art, the present invention can give birth to during live
Become to be available for the video flowing fragment that user calls and plays back, efficiently solve the problems, such as the playback delay of live video, shorten user
Wait the time reviewing live video it is ensured that Consumer's Experience.
And, the present invention also carries out setting processing to video flowing fragment, because the size of video flowing fragment is less, therefore only
The setting processing that the short period can complete to size less video flowing fragment need to be expended, live compared to treating in prior art
After end, setting processing is carried out to the whole video stream data of caching, the present invention is basically completed to whole at the end of net cast
The setting processing of video stream data, solves the problems, such as the playback delay of live video further.
Meanwhile, present invention is alternatively directed to each video flowing fragment adds the first association identification, and closed according to the first association identification
Join multiple continuous video flowing fragments, recognize a certain video flowing fragment carry correlation the first association identification after, unconditionally
Play this video flowing fragment, thus ensureing the continuous broadcasting of multiple video flowing fragments.
In addition, video flowing fragment can be made up of at least one video pictures group in the present invention, video flowing fragment is being entered
Before row association, the present invention can also look into the problem frame of video of time of occurrence skew in the video pictures group of video flowing fragment
Look for and repair, the operation of repairing to problem frame of video ensure that continuously broadcasting of at least one video pictures group in video flowing fragment
Put.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the specific embodiment of the present invention.
Brief description
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred embodiment, and is not considered as to the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical part.In the accompanying drawings：
Fig. 1 shows that a kind of steps flow chart of according to embodiments of the present invention one generation method of playback video file is illustrated
Figure；
Fig. 2 shows that a kind of steps flow chart of according to embodiments of the present invention two generation method of playback video file is illustrated
Figure；
Fig. 3 shows a kind of structured flowchart of according to embodiments of the present invention three generating means of playback video file；
Fig. 4 shows a kind of structured flowchart of according to embodiments of the present invention four generating means of playback video file.
Specific embodiment
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment it being understood, however, that may be realized in various forms the disclosure and should not be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to be able to be best understood from the disclosure, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.
With reference to Fig. 1, show a kind of step stream of according to embodiments of the present invention one generation method of playback video file
Journey schematic diagram, methods described specifically may include steps of：
Step 101, crawl video stream data simultaneously generates video flowing fragment according to the video stream data of crawl.
Method described in the embodiment of the present invention is applied to be existed with the scene of the video data of streaming manner transmission, example
As applied in net cast scene, video transmission scene, video transmission process etc..Video flowing uploads end and uploads video stream data
To the webserver, video request end plays out from webserver acquisition video data and to it.
In existing scheme, playback video file is to generate after the reception of all video stream datas terminates, and plays back video file
There is generation delay issue, live video has playback delay problem.
For solving the generation delay issue of playback video file, shorten the time that user waits the video reviewing broadcasting,
The present embodiment captures to the video stream data receiving, and generates video flowing fragment, video according to the video stream data of crawl
The size being smaller in size than complete video of flow section, the video flowing fragment of generation have can call and can playback function, video please
Ask end can call video flowing fragment from the webserver after video flowing fragment generates and it is played out.
Because video flowing fragment is to generate during net cast, video request end can be during net cast
The video flowing fragment of generation is called, user can review the video stream data of broadcasting during net cast,
Therefore this method effectively shortens the time of the playback to be watched video file such as user, and the playback efficiently solving live video is prolonged
Problem late.
During the crawl of video stream data, video stream data can be captured according to preset rules, such as according to default
Crawl duration carries out to video stream data capturing, according to preset data size, video stream data is captured, and generates video flowing
Fragment.
Step 102, carries out setting processing to the video flowing fragment being currently generated.
Existing method, after all video stream data ends of transmission, sets to all video stream datas receiving and cache
Fixed process, for example, carry out format conversion processing to all video stream datas.Because the size of all video stream datas is larger, to institute
The setting processing having flow data needs to consume a longer time, therefore this operation can extend the generation time of playback video file, add
The playback delay problem of deep live video.
And the application, after the video stream data receiving is captured and generated video flowing fragment, enters to video flowing fragment
Row setting processing, the video flowing fragment after process can be play on multiple playing platforms.For example, row format is entered to video flowing fragment
Process, mp4 (MPEG-4Part 14) file format of video stream data is transcoded into HLS (HTTP Live Streaming) literary composition
Part form, makes the video stream data after process be applied to multiple playing platforms.
Because the size of video flowing fragment is less, when therefore the setting processing for video flowing fragment only needs to expend shorter
Between.During the reception of video stream data, video flowing fragment is continuously generated, i.e. to this after generation one new video flowing fragment
Fragment carries out setting processing, it is only necessary to the short period of consuming is to last video flowing after the reception of all video stream datas terminates
Fragment carries out setting processing, you can completing is the setting processing of all video stream datas to all video flowing fragments, therefore relatively
In existing scheme, the present embodiment can improve Consumer's Experience with the playback delay problem of effectively solving live video.
Step 103, the video flowing fragment after preservation is processed is called for during playback.
Setting processing is carried out to the video flowing fragment generating, obtains the video flowing fragment of kinds of platform support, with network
As a example server realizes the scheme of the application, the webserver preserves to the video flowing fragment after processing, and generates correspondence
Broadcast address.The broadcast address of video flowing fragment can be sent to by the webserver according to the call request playing end transmission
Play end, play end and can play corresponding video flowing fragment by accessing broadcast address, review the live of broadcasting for user
Video content.
Specifically can be by the single video flowing fragment composition playback video file after processing, for the life of each video flowing fragment
Become a broadcast address, call for video request end；Several video flowing fragment compositions after processing can also be played back video files,
Generate a broadcast address for several video flowing fragments；Can also be after setting processing terminates, by all video flowings after processing
The complete playback video file of fragment composition, generates a broadcast address for complete playback video file, for according to broadcasting
Address recalls this playback video file.
According to the embodiment of the present invention, the video stream data uploading is carried out with grasping manipulation, and the video fluxion according to crawl
According to generation video flowing fragment, the chi of the complete video flow data belonging to video stream data being smaller in size than crawl of video flowing fragment
Very little, just generate playback video file after net cast terminates compared to prior art, the present invention can give birth to during live
Become to be available for the video flowing fragment that user calls and plays back, efficiently solve the problems, such as the playback delay of live video, shorten user
Wait the time reviewing live video it is ensured that Consumer's Experience.
And, the present invention also carries out setting processing to video flowing fragment, because the size of video flowing fragment is less, therefore only
The setting processing that the short period can complete to size less video flowing fragment need to be expended, live compared to treating in prior art
After end, setting processing is carried out to the whole video stream data of caching, this method is basically completed to whole at the end of net cast
The setting processing of video stream data, solves the problems, such as the playback delay of live video further.
With reference to Fig. 2, show a kind of step stream of according to embodiments of the present invention two generation method of playback video file
Journey schematic diagram, methods described specifically may include steps of：
Step 201, according to pre-conditioned crawl video stream data and by the video stream data of crawl with video pictures group be
Unit is parsed.
Method described in the embodiment of the present invention is applied to be existed with the scene of the video data of streaming manner transmission, example
As applied in net cast process, video transmission process, video transmission process.Video stream data uploads end can be in units of frame
Video stream data is transmitted, correspondingly the webserver receives the video stream data pressing frame transmission.
The embodiment of the present invention can pre-set the condition of crawl video stream data, and pre-conditioned can limit is captured
The size of video stream data, the duration of video stream data.For the situation of webserver better performances, can limit less
Video stream data size or duration, so can be transmitted to the video stream data of real-time crawl as early as possible, so that video flowing
The transmission of data has more preferable real-time.
Video pictures group (Group of Pictures, GOP), a GOP is exactly one group of continuous picture.In MPEG
In (Moving Picture Experts Group) coding standard, picture is divided into I frame (intra picture, internal picture
Face), P frame (predictive-frame, forward-predictive-coded frames) and B frame (bi-directional interpolated
Prediction frame, bi-directional predicted interpolation coding frame), the group belonging to the multiple continuous frame of a picture is collectively referred to as regarding
Frequency picture group, such as IBBPBBPBBPB BPBBP.
The embodiment of the present invention, can be to grabbing in units of video pictures group after according to pre-conditioned crawl video stream data
The video stream data taking is parsed, and obtains the information such as incidence relation between video pictures group number, video pictures group.
In units of video pictures group, pre-conditioned can also the restriction capturing video stream data in the embodiment of the present invention is grabbed
The number of the video pictures group taking.
Step 202, at least one continuous video pictures group is stored as video flowing fragment.
Video flowing fragment can be made up of at least one video pictures group.Video flowing fragment according to the crawl of video pictures group
Including integer video pictures group, and potentially include integer video pictures according to the video stream data of other pre-conditioned crawls
Group is it is also possible to include partial video picture group.If it is determined that current video flow data after completing the parsing to video stream data
In there is incomplete partial video picture group, then partial video picture group can be allocated to the video fluxion next time capturing
According to according only to the complete video pictures group generation video flowing fragment in current video flow data.
The video stream data transmitting by frame is received, makes the video receiving based on reasons such as frame-skipping, network delays
Timestamp skew is there may be, timestamp skew can lead to multiple frame of video cannot continuously play, lead to video flow between frame
Duan Wufa continuously plays, thus reducing Consumer's Experience.For solve the above problems it is ensured that in server storage multiple video flowings
Fragment and multiple frame of video can continuously be play, and the embodiment of the present invention can also be to different video flow section and to video flow
Problem frame of video in section is processed.
Specifically, may comprise steps of to carrying out process between different video flow section：In crawl video stream data
And after video flowing fragment is generated according to the video stream data of crawl, add the first association identification for video flowing fragment；According to
First association identification associates multiple continuous video flowing fragments, and the video flowing fragment composition playback video file by association.Its
Middle playback video file can be including one or more video flowing fragments.Video request end is recognizing the first association identification
Afterwards, the first association identification corresponding video flowing fragment is unconditionally play, thus ensure that the company of multiple video flowing fragments
Continued broadcasting is put it is ensured that playing back the continuous broadcasting of video file.
Carry out process to the problem frame of video in video flowing fragment may comprise steps of：In crawl video stream data simultaneously
After video stream data according to crawl generates video flowing fragment, search time migration in the video pictures group of video flowing fragment
Problem frame of video；Problem frame of video is repaired.After the reparation of complete dual problem frame of video, video flowing fragment can normally be broadcast
Put.
Video stream data uploads end and presses frame uploaded videos flow data, and the time interval between two adjacent video frames is very
Short, such as the time difference between two adjacent video frames is less than 1s, if frame of video is normal when uploading and in upload procedure
The problems such as existence time does not offset, then the time difference between the two adjacent video frames that the webserver receives is constant；If
There are serious problems during upload and in upload procedure, lead to larger time migration, then the phase that the webserver receives
Time difference between adjacent two frame of video becomes very large；If there is slight problem when uploading and in upload procedure, lead
Cause less time migration, then the time difference between the two adjacent video frames that the webserver receives can become big, but
Become significantly less.
The embodiment of the present invention can preset the time difference threshold value between two adjacent video frames.Work as two adjacent video
Time difference between frame is less than during time difference threshold value it may be said that non-time of origin skew between bright two adjacent video frames, or
Time of origin skew between two adjacent video frames is described, but the time migration occurring is in tolerance interval, will not be right
Presentation of video frames causes to have a strong impact on；Time difference between two adjacent video frames exceeds during time difference threshold value it may be said that bright
The frame of video receiving afterwards exists and a upper frame of video time of origin skew, and the frame of video receiving afterwards is problem frame of video.Therefore, look into
The step looking for the problem frame of video of time migration in the video pictures group of video flowing fragment can be by searching and a upper frame of video
Time difference exceed given threshold frame of video method realize.
Video flowing fragment includes at least one video pictures group, in video pictures group picture frame include I frame and P
Frame, the I frame in a video pictures group is adjacent with the P frame in a upper video pictures group, last in a video pictures group
One P frame is adjacent with the I frame in next video pictures group, the difference in functionality based on I frame and P frame and present position, the present invention
Embodiment employs different restorative procedures to I frame and P frame.Therefore, in addition it is also necessary to judge before repairing to problem frame of video
The species of problem frame of video, is I frame or P frame.
For a video pictures group if it is decided that problem frame of video is P frame, because P frame is forward predicted frame although going
Except P frame picture occurs the main situation of card, but picture also exists, and blank screen, and user still can continue to watch, then right
Restorative procedure in P frame can be for deleting P frame and the P frame being contiguous therewith below.For example, a video pictures group is (I P P
P P P P P P), if the 5th P frame is problem frame of video, delete the 5th P frame and continuously multiple P behind
Frame, the video pictures group after reparation is (I P P P P).
One video flowing fragment includes multiple video pictures groups, in a video flowing fragment, if problem frame of video
Be located video pictures group after also there is other video pictures groups, then according to said method delete ask P frame and below with
After its continuous P frame, in the presence of the I frame in last P frame and next video pictures group in the video pictures group after reparation
Between offset so that two video pictures groups cannot normal play.
For solving the above problems it is ensured that the video pictures group after repairing and adjacent next video pictures group are normally broadcast
Put, the embodiment of the present invention can carry out slicing treatment to the video pictures group after repairing and adjacent next video pictures group,
Obtain two video flowing fragments；Afterwards the second association identification is added to video flowing fragment, player is recognizing the second association mark
After knowledge, two video flowing fragments are continuously play.
Second association identification can be added in the video flowing fragment of video pictures group after comprising to repair.Video request end
If recognizing currently playing video flowing fragment to carry the second association identification, treat that currently playing video flowing fragment plays knot
Shu Hou, does not consider that next video flowing fragment whether there is time migration, directly next video flowing fragment is played out, from
And realize the continuous broadcasting of multiple video pictures groups.
Second association identification can also be added in the video flowing fragment comprising next video pictures group.Treat currently playing
Video flowing fragment play terminate after, if video request end recognizes next video flowing fragment and carries the second association identification,
Then do not consider that next video flowing fragment whether there is time migration, directly next video flowing fragment is played out.
Second association identification can be various ways, for example serial number, temporal information, association previous video segment and
At least one of a rear video segment of association.In the embodiment of the present invention, the first association identification is permissible with the second association identification
For like-identified or differ mark.
By above-mentioned analysis, after the P frame being contiguous therewith in deletion P frame and below, problem frame of video is repaiied
Recover and can include：Problem frame of video previous frame of video followed by slicing treatment, using previous frame of video as the first mesh
Last video data frame of mark video flowing fragment；Add and next target video fragment for first object video flowing fragment
The second association identification.
For example, video flowing fragment includes two adjacent video pictures groups (I P P P P P P P P I P P P P
P P P P), if the 6th P frame in first video pictures group goes wrong, first, delete first video pictures
The 6th P frame in group, the 7th P frame and the 8th P frame；Secondly, after the 5th P frame in first video pictures group
Carry out slicing treatment, obtain two video flowing fragments, be i.e. (I P P P P P) and (I P P P P P P P P)；Finally, right
Video flowing fragment (I P P P P P) adds the second association identification.
When a video flowing fragment includes multiple video pictures group if it is decided that video pictures group in an intermediate position
In I frame go wrong, that is, problem frame of video is I frame, then step problem frame of video repaired can include：First,
Carried out slicing treatment before I frame, using I frame as the second target video flow section first video data frame；Next, for
Second target video flow section adds the second association identification with a upper target video fragment.Video request end is recognizing currently
The upper target video fragment play or after the second target video flow section carries the second association identification, unconditionally to the second target
Video flowing fragment plays out, thus ensure that the continuous broadcasting of two video pictures groups.
Step 203, each video flowing fragment is converted to the setting form that mobile client can play.
Video flowing fragment for making generation can be play in mobile client, the video flow that the present embodiment can will generate
Section is converted into the form that mobile client can play, for example can be by mp4 (MPEG-4Part 14) tray of video stream data
Formula is transcoded into HLS (HTTP Live Streaming) file format.
During the reception of video stream data, video flowing fragment is continuously generated, after generation one new video flowing fragment
Size less video flowing fragment is entered with row format conversion, after the reception of all video stream datas terminates it is only necessary to when expending shorter
Between last video flowing fragment carried out with format analysis processing can complete the form conversion to all video stream datas, therefore relatively
After the video stream data end of transmission, row format conversion is entered to all video stream datas of caching in existing method, the present embodiment can
Wait, to shorten user further, the time reviewing live video, improve Consumer's Experience.
Step 204, the video flowing fragment after preservation is processed is called for during playback.
According to the embodiment of the present invention, the video stream data uploading is carried out with grasping manipulation, and the video fluxion according to crawl
According to generation video flowing fragment, the chi of the complete video flow data belonging to video stream data being smaller in size than crawl of video flowing fragment
Very little, just generate playback video file after net cast terminates compared to prior art, the present invention can give birth to during live
Become to be available for the video flowing fragment that user calls and plays back, efficiently solve the problems, such as the playback delay of live video, shorten user
Wait the time reviewing live video it is ensured that Consumer's Experience.
And, the present invention also carries out setting processing to video flowing fragment, because the size of video flowing fragment is less, therefore only
The setting processing that the short period can complete to size less video flowing fragment need to be expended, live compared to treating in prior art
After end, setting processing is carried out to the whole video stream data of caching, this method is basically completed to whole at the end of net cast
The setting processing of video stream data, solves the problems, such as the playback delay of live video further.
Meanwhile, present invention is alternatively directed to each video flowing fragment adds the first association identification, and closed according to the first association identification
Join multiple continuous video flowing fragments, after proprietary players recognize the first association identification of a certain video flowing fragment, unconditionally
Play this video flowing fragment, thus ensureing the continuous broadcasting of multiple video flowing fragments.
In addition, video flowing fragment can be made up of at least one video pictures group in the present invention, video flowing fragment is being entered
Before row association, the present invention can also look into the problem frame of video of time of occurrence skew in the video pictures group of video flowing fragment
Look for and repair, the operation of repairing to problem frame of video ensure that continuously broadcasting of at least one video pictures group in video flowing fragment
Put.
Fig. 3 shows a kind of structured flowchart of according to embodiments of the present invention three generating means of playback video file.Fig. 3
In playback video file generating means include：
Video flowing fragment generation module 301, for capture video stream data and according to crawl video stream data generate regard
Frequency flow section.
Setting processing carries out module 302, for carrying out setting processing to the video flowing fragment being currently generated.
Video flowing fragment preserving module 303, the video flowing fragment after processing for preservation is called for during playback.
According to the embodiment of the present invention, the video stream data uploading is carried out with grasping manipulation, and the video fluxion according to crawl
According to generation video flowing fragment, the chi of the complete video flow data belonging to video stream data being smaller in size than crawl of video flowing fragment
Very little, just generate playback video file after net cast terminates compared to prior art, the present invention can give birth to during live
Become to be available for the video flowing fragment that user calls and plays back, efficiently solve the problems, such as the playback delay of live video, shorten user
Wait the time reviewing live video it is ensured that Consumer's Experience.
And, the present invention also carries out setting processing to video flowing fragment, because the size of video flowing fragment is less, therefore only
The setting processing that the short period can complete to size less video flowing fragment need to be expended, live compared to treating in prior art
After end, setting processing is carried out to the whole video stream data of caching, this method is basically completed to whole at the end of net cast
The setting processing of video stream data, solves the problems, such as the playback delay of live video further.
Fig. 4 shows a kind of structured flowchart of according to embodiments of the present invention four generating means of playback video file.Fig. 4
In playback video file generating means include：
Video flowing fragment generation module 401, for capture video stream data and according to crawl video stream data generate regard
Frequency flow section.
Setting processing carries out module 402, for carrying out setting processing to the video flowing fragment being currently generated.
Video flowing fragment preserving module 403, the video flowing fragment after processing for preservation is called for during playback.
Described video flowing fragment generation module 401 includes：
Video stream data captures submodule 4011, for according to pre-conditioned crawl video stream data；
Video stream data analyzing sub-module 4012, for carrying out the video stream data of crawl in units of video pictures group
Parsing；
Video flowing fragment sub-module stored 4013, for being stored as video flow by least one continuous video pictures group
Section.
It is preferable that described setting processing carries out module 402 in the embodiment of the present invention, specifically for by each video flow
Section is converted to the setting form that mobile client can play.
It is preferable that described device also includes in the embodiment of the present invention：
First association identification add module, gives birth to in described crawl video stream data and according to the video stream data of crawl
After becoming video flowing fragment, add the first association identification for described video flowing fragment；
Video flowing fragment association module, for multiple continuous video flowing fragments are associated according to described first association identification,
And the video flowing fragment composition playback video file by association.
It is preferable that described video flowing fragment is made up of at least one video pictures group in the embodiment of the present invention.
It is preferable that the generating means of described playback video file also include in the embodiment of the present invention：
Problem frame of video searching modul, generates in described crawl video stream data and according to the video stream data of crawl
After video flowing fragment, search the problem frame of video of time migration in the video pictures group of described video flowing fragment；
Problem frame of video repair module, for repairing to described problem frame of video.
It is preferable that described problem frame of video searching modul in the embodiment of the present invention, specifically for searching and a upper frame of video
Time difference exceed given threshold frame of video.
It is preferable that the generating means of described playback video file also include in the embodiment of the present invention：
Frame species judge module, for described described problem frame of video is repaired before, judge described problem regard
Frequency frame is I frame or P frame.
It is preferable that described problem frame of video repair module includes in the embodiment of the present invention：
P frame deletion submodule, if being P frame for described problem frame of video, deleting described P frame and being contiguous therewith below
P frame.
It is preferable that described problem frame of video repair module also includes in the embodiment of the present invention：
First slicing treatment carries out submodule, for the previous frame of video in described problem frame of video followed by section at
Reason, using described previous frame of video as first object video flowing fragment last video data frame；
Second association identification adds submodule, regards with next target for adding for described first object video flowing fragment
Second association identification of frequency fragment.
It is preferable that described problem frame of video repair module includes in the embodiment of the present invention：
Second slicing treatment carries out submodule, if being I frame for described problem frame of video, carries out before described I frame
Slicing treatment, using described I frame as the second target video flow section first video data frame；
Second association identification increases submodule, regards with a upper target for adding for described second target video flow section
Second association identification of frequency fragment.
In the embodiment of the present invention it is preferable that described second association identification be serial number, temporal information, association previous
At least one of video segment and the rear video segment associating.
According to the embodiment of the present invention, the video stream data uploading is carried out with grasping manipulation, and the video fluxion according to crawl
According to generation video flowing fragment, the chi of the complete video flow data belonging to video stream data being smaller in size than crawl of video flowing fragment
Very little, just generate playback video file after net cast terminates compared to prior art, the present invention can give birth to during live
Become to be available for the video flowing fragment that user calls and plays back, efficiently solve the problems, such as the playback delay of live video, shorten user
Wait the time reviewing live video it is ensured that Consumer's Experience.
And, the present invention also carries out setting processing to video flowing fragment, because the size of video flowing fragment is less, therefore only
The setting processing that the short period can complete to size less video flowing fragment need to be expended, live compared to treating in prior art
After end, setting processing is carried out to the whole video stream data of caching, this method is basically completed to whole at the end of net cast
The setting processing of video stream data, solves the problems, such as the playback delay of live video further.
Meanwhile, present invention is alternatively directed to each video flowing fragment adds the first association identification, and closed according to the first association identification
Join multiple continuous video flowing fragments, after proprietary players recognize the first association identification of a certain video flowing fragment, unconditionally
Play this video flowing fragment, thus ensureing the continuous broadcasting of multiple video flowing fragments.
In addition, video flowing fragment can be made up of at least one video pictures group in the present invention, video flowing fragment is being entered
Before row association, the present invention can also look into the problem frame of video of time of occurrence skew in the video pictures group of video flowing fragment
Look for and repair, the operation of repairing to problem frame of video ensure that continuously broadcasting of at least one video pictures group in video flowing fragment
Put.
Algorithm and display be not inherently related to any certain computer, virtual system or miscellaneous equipment provided herein.
Various general-purpose systems can also be used together with based on teaching in this.As described above, construct required by this kind of system
Structure be obvious.Additionally, the present invention is also not for any certain programmed language.It is understood that, it is possible to use various
Programming language realizes the content of invention described herein, and the description above language-specific done is to disclose this
Bright preferred forms.
In specification mentioned herein, illustrate a large amount of details.It is to be appreciated, however, that the enforcement of the present invention
Example can be put into practice in the case of not having these details.In some instances, known method, structure are not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly it will be appreciated that in order to simplify the disclosure and help understand one or more of each inventive aspect,
Above in the description to the exemplary embodiment of the present invention, each feature of the present invention is grouped together into single enforcement sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：I.e. required guarantor
The application claims of shield more features than the feature being expressly recited in each claim.More precisely, it is such as following
Claims reflected as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
The claims following specific embodiment are thus expressly incorporated in this specific embodiment, wherein each claim itself
All as the separate embodiments of the present invention.
Those skilled in the art are appreciated that and the module in the equipment in embodiment can be carried out adaptively
Change and they are arranged in one or more equipment different from this embodiment.Can be the module in embodiment or list
Unit or assembly be combined into a module or unit or assembly, and can be divided in addition multiple submodule or subelement or
Sub-component.In addition to such feature and/or at least some of process or unit exclude each other, can adopt any
Combination is to all features disclosed in this specification (including adjoint claim, summary and accompanying drawing) and so disclosed
Where method or all processes of equipment or unit are combined.Unless expressly stated otherwise, this specification (includes adjoint power
Profit requires, summary and accompanying drawing) disclosed in each feature can carry out generation by the alternative features providing identical, equivalent or similar purpose
Replace.
Although additionally, it will be appreciated by those of skill in the art that some embodiments described herein include other embodiments
In included some features rather than further feature, but the combination of the feature of different embodiment means to be in the present invention's
Within the scope of and form different embodiments.For example, in the following claims, embodiment required for protection appoint
One of meaning can in any combination mode using.
The all parts embodiment of the present invention can be realized with hardware, or to run on one or more processor
Software module realize, or with combinations thereof realize.It will be understood by those of skill in the art that can use in practice
Microprocessor or digital signal processor (DSP) are realizing the generation equipment of playback video file according to embodiments of the present invention
In some or all parts some or all functions.The present invention is also implemented as described herein for executing
Some or all equipment of method or program of device (for example, computer program and computer program).So
The program realizing the present invention can store on a computer-readable medium, or can have the shape of one or more signal
Formula.Such signal can be downloaded from internet website and obtain, or provides on carrier signal, or with any other shape
Formula provides.
It should be noted that above-described embodiment the present invention will be described rather than limits the invention, and ability
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element listed in the claims or step.Word "a" or "an" before element does not exclude the presence of multiple such
Element.The present invention can come real by means of the hardware including some different elements and by means of properly programmed computer
Existing.If in the unit claim listing equipment for drying, several in these devices can be by same hardware branch
To embody.The use of word first, second, and third does not indicate that any order.These words can be explained and run after fame
Claim.
The invention discloses A1, a kind of generation method of playback video file, including：
Crawl video stream data simultaneously generates video flowing fragment according to the video stream data of crawl；
Setting processing is carried out to the video flowing fragment being currently generated；
Video flowing fragment after preservation is processed is called for during playback.
A2, the method according to A1, wherein, give birth in described crawl video stream data and according to the video stream data of crawl
After becoming video flowing fragment, methods described also includes：
Add the first association identification for described video flowing fragment；
Multiple continuous video flowing fragments, and the video flowing fragment composition by association are associated according to described first association identification
Playback video file.
A3, the method according to A1, wherein, described video flowing fragment is made up of at least one video pictures group.
A4, the method according to A3, wherein, described crawl video stream data simultaneously generates according to the video stream data of crawl
Video flowing fragment includes：
Carried out in units of video pictures group according to pre-conditioned crawl video stream data and by the video stream data of crawl
Parsing；
At least one continuous video pictures group is stored as video flowing fragment.
A5, the method according to A1, wherein, described carry out setting processing to the video flowing fragment being currently generated and include：
Each video flowing fragment is converted to the setting form that mobile client can play.
A6, the method according to A3, wherein, give birth in described crawl video stream data and according to the video stream data of crawl
After becoming video flowing fragment, methods described also includes：
Search the problem frame of video of time migration in the video pictures group of described video flowing fragment；
Described problem frame of video is repaired.
A7, the method according to A6, wherein, time migration in the video pictures group of the described video flowing fragment of described lookup
Problem frame of video include：
The time difference of lookup and a upper frame of video exceeds the frame of video of given threshold.
A8, the method according to A6, wherein, described described problem frame of video is repaired before, methods described
Also include：
Judge described problem frame of video as I frame or P frame.
A9, the method according to A8, wherein, described described problem frame of video is carried out repair include：
If described problem frame of video is P frame, delete described P frame and the P frame being contiguous therewith below.
A10, the method according to A9, wherein, described carry out repairing also including to described problem frame of video：
Described problem frame of video previous frame of video followed by slicing treatment, using described previous frame of video as first
Last video data frame of target video flow section；
Add the second association identification with next target video fragment for described first object video flowing fragment.
A11, the method according to A8, wherein, described described problem frame of video is carried out repair include：
If described problem frame of video is I frame, carried out slicing treatment before described I frame, using described I frame as the second mesh
First video data frame of mark video flowing fragment；
Add the second association identification with a upper target video fragment for described second target video flow section.
A12, the method according to A10, wherein, described second association identification be serial number, temporal information, association
At least one of previous video segment and the rear video segment associating.
The invention also discloses B13, a kind of generating means of playback video file, including：
Video flowing fragment generation module, for capturing video stream data the video stream data generation video flowing according to crawl
Fragment；
Setting processing carries out module, for carrying out setting processing to the video flowing fragment being currently generated；
Video flowing fragment preserving module, the video flowing fragment after processing for preservation is called for during playback.
B14, the device according to B13, wherein, described device also includes：
First association identification add module, gives birth to in described crawl video stream data and according to the video stream data of crawl
After becoming video flowing fragment, add the first association identification for described video flowing fragment；
Video flowing fragment association module, for multiple continuous video flowing fragments are associated according to described first association identification,
And the video flowing fragment composition playback video file by association.
B15, the device according to B13, wherein, described video flowing fragment is made up of at least one video pictures group.
B16, the device according to B15, wherein, described video flowing fragment generation module includes：
Video stream data captures submodule, for according to pre-conditioned crawl video stream data；
Video stream data analyzing sub-module, for being solved the video stream data of crawl in units of video pictures group
Analysis；
Video flowing fragment sub-module stored, for being stored as video flowing fragment by least one continuous video pictures group.
B17, the device according to B13, wherein：
Described setting processing carries out module, specifically for each video flowing fragment is converted to what mobile client can play
Set form.
B18, the device according to B15, wherein, described device also includes：
Problem frame of video searching modul, generates in described crawl video stream data and according to the video stream data of crawl
After video flowing fragment, search the problem frame of video of time migration in the video pictures group of described video flowing fragment；
Problem frame of video repair module, for repairing to described problem frame of video.
B19, the device according to B18, wherein：
Described problem frame of video searching modul, the time difference specifically for lookup and a upper frame of video exceeds given threshold
Frame of video.
B20, the device according to B18, wherein, described device also includes：
Frame species judge module, for described described problem frame of video is repaired before, judge described problem regard
Frequency frame is I frame or P frame.
B21, the device according to B20, wherein, described problem frame of video repair module includes：
P frame deletion submodule, if being P frame for described problem frame of video, deleting described P frame and being contiguous therewith below
P frame.
B22, the device according to B21, wherein, described problem frame of video repair module also includes：
First slicing treatment carries out submodule, for the previous frame of video in described problem frame of video followed by section at
Reason, using described previous frame of video as first object video flowing fragment last video data frame；
Second association identification adds submodule, regards with next target for adding for described first object video flowing fragment
Second association identification of frequency fragment.
B23, the device according to B20, wherein, described problem frame of video repair module includes：
Second slicing treatment carries out submodule, if being I frame for described problem frame of video, carries out before described I frame
Slicing treatment, using described I frame as the second target video flow section first video data frame；
Second association identification increases submodule, regards with a upper target for adding for described second target video flow section
Second association identification of frequency fragment.
B24, the device according to B22, wherein, described second association identification be serial number, temporal information, association
At least one of previous video segment and the rear video segment associating.
Claims (10)
1. a kind of generation method of playback video file, including：
Crawl video stream data simultaneously generates video flowing fragment according to the video stream data of crawl；
Setting processing is carried out to the video flowing fragment being currently generated；
Video flowing fragment after preservation is processed is called for during playback.
2. method according to claim 1, wherein, in described crawl video stream data and according to the video stream data capturing
After generating video flowing fragment, methods described also includes：
Add the first association identification for described video flowing fragment；
Multiple continuous video flowing fragments, and the video flowing fragment composition playback by association are associated according to described first association identification
Video file.
3. method according to claim 1, wherein, described video flowing fragment is made up of at least one video pictures group.
4. method according to claim 3, wherein, described crawl video stream data is simultaneously given birth to according to the video stream data of crawl
Video flowing fragment is become to include：
Parsed in units of video pictures group according to pre-conditioned crawl video stream data and by the video stream data of crawl；
At least one continuous video pictures group is stored as video flowing fragment.
5. method according to claim 1, wherein, described carries out setting processing bag to the video flowing fragment being currently generated
Include：
Each video flowing fragment is converted to the setting form that mobile client can play.
6. method according to claim 3, wherein, in described crawl video stream data and according to the video stream data capturing
After generating video flowing fragment, methods described also includes：
Search the problem frame of video of time migration in the video pictures group of described video flowing fragment；
Described problem frame of video is repaired.
7. method according to claim 6, wherein, in the video pictures group of the described video flowing fragment of described lookup, the time is inclined
The problem frame of video moved includes：
The time difference of lookup and a upper frame of video exceeds the frame of video of given threshold.
8. method according to claim 6, wherein, described described problem frame of video is repaired before, described side
Method also includes：
Judge described problem frame of video as I frame or P frame.
9. method according to claim 8, wherein, described described problem frame of video is carried out repair include：
If described problem frame of video is P frame, delete described P frame and the P frame being contiguous therewith below.
10. a kind of generating means of playback video file, including：
Video flowing fragment generation module, for capturing video stream data the video stream data generation video flow according to crawl
Section；
Setting processing carries out module, for carrying out setting processing to the video flowing fragment being currently generated；
Video flowing fragment preserving module, the video flowing fragment after processing for preservation is called for during playback.
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| CN201610964634.8A CN106412677B (en) | 2016-10-28 | 2016-10-28 | Method and device for generating playback video file |
| PCT/CN2017/103836 WO2018076998A1 (en) | 2016-10-28 | 2017-09-28 | Method and device for generating playback video file |
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| CN201610964634.8A CN106412677B (en) | 2016-10-28 | 2016-10-28 | Method and device for generating playback video file |
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| CN107948715A (en) * | 2017-11-28 | 2018-04-20 | 北京潘达互娱科技有限公司 | Live network broadcast method and device |
| CN108965831A (en) * | 2018-09-05 | 2018-12-07 | 北京疯景科技有限公司 | Method for processing video frequency, device and intelligent visual door bell |
| CN111447455A (en) * | 2018-12-29 | 2020-07-24 | 北京奇虎科技有限公司 | Live video stream playback processing method and device and computing equipment |
| CN112289429A (en) * | 2019-07-25 | 2021-01-29 | 深圳市理邦精密仪器股份有限公司 | Central monitoring station, monitoring system, data reviewing method and device |
| CN111031385A (en) * | 2019-12-20 | 2020-04-17 | 北京爱奇艺科技有限公司 | Video playing method and device |
| CN111031385B (en) * | 2019-12-20 | 2022-03-08 | 北京爱奇艺科技有限公司 | Video playing method and device |
| CN113630618A (en) * | 2021-08-06 | 2021-11-09 | 上海哔哩哔哩科技有限公司 | Video processing method, device and system |
| CN113630618B (en) * | 2021-08-06 | 2024-02-13 | 上海哔哩哔哩科技有限公司 | Video processing method, device and system |
| CN113873288A (en) * | 2021-12-02 | 2021-12-31 | 北京微吼时代科技有限公司 | Method and device for generating playback in live broadcast process |
| CN114339289A (en) * | 2021-12-30 | 2022-04-12 | 杭州当虹科技股份有限公司 | Video playing processing method |
| CN114339289B (en) * | 2021-12-30 | 2023-08-15 | 杭州当虹科技股份有限公司 | Video playing processing method |
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| Publication number | Publication date |
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| WO2018076998A1 (en) | 2018-05-03 |
| CN106412677B (en) | 2020-06-02 |
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