CN103517135B - Method, system and television capable of playing MP4-format video files continuously - Google Patents
Method, system and television capable of playing MP4-format video files continuously Download PDFInfo
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- CN103517135B CN103517135B CN201210217794.8A CN201210217794A CN103517135B CN 103517135 B CN103517135 B CN 103517135B CN 201210217794 A CN201210217794 A CN 201210217794A CN 103517135 B CN103517135 B CN 103517135B
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Abstract
The invention discloses a method, system and television capable of playing MP4-format video files continuously. The method capable of playing the MP4-format video files continuously comprises the steps that a plurality of video files to be played are obtained; the formats of the obtained video files are analyzed, and when the formats of the obtained video files are MP4 formats, media description data of each video file are extracted, and the media description data of the video files are combined in sequence to form new media description data; media data of each video file are obtained and played in sequence according to the new media description data. The method, system and television capable of playing the MP4-format video files continuously have the advantages that the MP4-format video files can be played more smoothly, the efficiency of continuous playing of the MP4-format video files of the television is improved, image pause caused by playing intermittence is avoided, and user experience is improved.
Description
Technical field
The present invention relates to the video display arts of intelligent television, more particularly, to continuously play MP4 form on television
The method of video file, system and TV.
Background technology
So-called intelligent television, refers to, as smart mobile phone, have full open model platform, be equipped with operating system, permissible
Voluntarily install and uninstall the program of the third party service providers such as software, game offer by user, by this class method Lai constantly to coloured silk
The function of electricity is expanded it is possible to the general name of the such class colour TV realizing surfing the web by netting twine, wireless network.Intelligence
Not only can play radio and television by TV, audio and video playing can also be realized, connect the Internet etc. function.
And more than the video file of existing MP4 form by the way of broadcast multiple segments voice separately, such as one TV play is generally divided
It is segmented into about 20 segment video files of 5 minutes, intelligent television, when playing these multiple video files, needs one by one
Play, after playing a video file, need to make the action being switched to the next video file of broadcasting, and in switching
When, next video file need to be buffered, now picture occurs pause, make playing efficiency low, reduce the experience of user.
Therefore, prior art has yet to be improved and developed.
Content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, provides one kind to connect on television
Method, system and the TV of MP4 format video file is put in continued broadcasting, makes broadcasting more smooth, improves playing efficiency, strengthens user's body
Test.
The technical scheme that present invention solution technical problem is adopted is as follows：
A kind of method of continuous broadcasting MP4 format video file, wherein, comprises the following steps：
A, acquisition multiple video files to be played；
The file format of the acquired multiple video files of B, parsing, when described video file is MP4 form, then extracts every
The media description data of individual video file, and the media description data of all video files is successively merged retouch for a new media
State data；
C, the media data that data obtains successively and plays each video file is described according to described new media.
The method of described continuous broadcasting MP4 format video file, wherein, described media description data includes video file
Wide high proportion, duration, code check, coded format, frame list, Key Frames List, time stamp and media data be in video file
Position；
Described media data includes each audio frame and frame of video in video file.
The method of described continuous broadcasting MP4 format video file, wherein, described step A also includes：Television reception is continuous
Play the instruction of multiple video files, described instruction includes the storage address of each video file, described storage address includes regarding
The internet address of frequency file or the address in local file system.
The method of described continuous broadcasting MP4 format video file, wherein, described step B specifically also includes：
B1, the media description data of each video file is successively merged, and determine the media data of each video file
Size and the position in video file, generate a new media data is described.
The method of described continuous broadcasting MP4 format video file, wherein, described step B1 specifically also includes：
B11, initialization one original media describe data, described original media is described data and is set to sky；
B12, media description data and the original media of first video file to be played are described data merge, determine
The size of media data and the position in video file in first video file to be played, generate a temporary media and retouch
State data；
B13, the media description data of next video file to be played is retouched with the temporary media of previous generation respectively
State data to merge, and iteration successively, until the media description data of all video files to be played merges completing, and every time
The size of media data and the position in video file in each video file to be played of merging is all determined during merging, raw
A new media is become to describe data.
The method of described continuous broadcasting MP4 format video file, wherein, described step C also includes：Every according to obtain
Individual new media describes data acquisition and plays the media data of each video file, and plays the media number of previous video file
According to when obtain the media data of next video file.
A kind of system of continuous broadcasting MP4 format video file, wherein, described system includes：
Video file acquisition module, for the instruction according to the multiple video file of continuous broadcasting receiving, obtains and waits to broadcast
The multiple video files put；
File analyzing module, for parsing the file format of acquired multiple video files, when described video file is
Extract the media description data of each video file during MP4 form, the media description data of each video file is successively merged
Describe data for a new media, be sent to playing module；
Playing module, the new media for being drawn according to file analyzing module describes data, obtains and play each video
The media data of file.
The system of described continuous broadcasting MP4 format video file, wherein, described file analyzing module also includes：
Pre-set module, be used for pre-setting an original media and describe data, and initialize described original media and describe number
According to for sky；
Merge module, for media description data and the described original media description of the video file to be played by first
Data merges, and determines the size of media data and the position in video file in first video file to be played, generates
One temporary media describes data；And by the media description data of next video file to be played respectively with previous generation
Temporary media describe data and merge, and iteration successively, until the media description data of all video files to be played is closed
And completing, and the size of media data and in video literary composition in each each video file to be played all determining merging when merging
Position in part, generates a new media and describes data.
The system of described continuous broadcasting MP4 format video file, wherein, described playing module is additionally operable to previous in broadcasting
The media data of next video file is obtained during the media data of individual video file.
A kind of TV, including the system of a continuous broadcasting MP4 format video file, wherein, including above-mentioned continuous broadcasting
The system of MP4 format video file.
The method of continuous broadcasting MP4 format video file provided by the present invention, system and TV, specific due to employing
The media description data of multiple video files is merged by algorithm, makes TV when playing multiple MP4 format video file, broadcasts
The media data discharging a MP4 format video file direct access next one MP4 format video file plays out, without
It is switched to the play operation of next MP4 format video file, make the broadcasting of MP4 format video file more smooth, carry
Rise Consumer's Experience.
Brief description
Fig. 1 is the flow chart that the present invention proposes the continuous preferred embodiment of method playing MP4 format video file.
Fig. 2 is the structural representation of the preferred embodiment of system that the present invention continuously plays MP4 format video file.
Fig. 3 is the structural representation of file analyzing module in the system shown in Fig. 2.
Specific embodiment
For making the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention further describes.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and without
In the restriction present invention.
Under normal circumstances, MP4 format video file is made up of media description data and media data, and is encapsulated in entitled
In the data block of box.The wide high proportion of media description data definition video, duration, code check, coded format, frame list, key frame
The information such as list, time stamp and media data position hereof.These information are all left in entitled with specific algorithm
In the box of moov, moov box is made up of many box（Such as mvhd box, trak box etc.）.Media data then exists
After moov box, contain the audio and video medium data that many piecemeals are deposited, the Voice ＆ Video that these piecemeals are deposited
Media data block is commonly referred to sample, and a sample is usually a frame video or a frame audio frequency.By media description data,
Size and this sample position hereof of each sample can be calculated.
Main idea is that, by analyzing the file structure of multiple MP4 format video files to be played, use
After these MP4 format video files are carried out " merging " analyzing and processing by special algorithm, TV is made to play multiple MP4 forms
During video file, when a MP4 format video file finishes it is not necessary to be switched to next MP4 format video
The play operation of file, the media data of direct access next one MP4 format video file plays out.MP4 form is regarded
Frequency file, by analyzing the media description data of multiple MP4 format video files, and ultimately generates one newly according to analysis result
Media description data, thus describe all media numbers of multiple MP4 format video files using new media description data
According to.Then newer media description data and media data are sent to TV to play out.Finally make user in viewing video
When feel more smooth, improve Consumer's Experience.
Referring to Fig. 1, Fig. 1 is the flow chart of the preferred embodiment of method that the present invention continuously plays MP4 format video file,
Comprise the following steps：
Step S100, acquisition multiple video files to be played；
The file format of the acquired multiple video files of step S200, parsing, when described video file is MP4 form
When, then extract the media description data of each video file, and by the media description data of all video files successively merge for
One new media describes data；
Step S300, the media data that data obtains successively and plays each video file is described according to described new media.
With reference to specific embodiment, above-mentioned steps are described in detail and describe.
In the step s 100, TV will receive the continuous instruction playing multiple video files before being played, and plays many
The storage address of each video file is included, storage address can be the Internet of video file in the instruction of individual video file
Address or the address in TV local file system etc..According to the storage address of each video file, TV passes through
Corresponding agreement（As HTTP, RSTP agreement）It is connected to media server and download these video files, or locally civilian from TV
Read in part system.
After obtaining video file, execution step S200, analysis judgment is carried out to the form of video file, judges these
Whether the form of video file is MP4 form, if it is determined that showing that the form of these video files is MP4 form, then to these
Video file is analyzed, and extracts the media description data of each video file, by the media description data of each video file
Successively merge, and determine the size of the media data of each video file and the position in video file, generate a new media
Description data.
And in concrete analysis it is analysis one by one, specifically, define an original media first and describe data, and
It is initialized so as to length is 0, original media will describe data and be set to sky, in it, do not comprise any media description
Data.After extracting the media description data of first MP4 format video file, extract the media of this MP4 format video file
Description data, the wide height of video, duration, code check, coded format, frame list, Key Frames List, time stamp and audio frequency and video sample
The information such as position hereof, these information have indicated collectively how TV plays this video file.To extract again afterwards
The media description data of first MP4 format video file and original media describe data and merged by special algorithm,
Special algorithm is specifically by the duration in media description data, frame list, Key Frames List, audio frequency and video sample hereof
The information such as position are overlapped, and make multiple media description data be transformed to an entirety, generate a temporary media and describe data.
Because the moov box length that temporary media now describes data is 0, does not comprise any MP4 and describe data, because
, when first MP4 format video Piece file mergence finishes, temporary media describes data and only describes first MP4 format video for this
The media description data of file.Merge after finishing, generate the first media description data, record this MP4 format video file
Each audio frame and frame of video position within this document and size information, these information will make when playing media data
With.
The media description data of second MP4 format video file is extracted when completing, by the media description data of this document
Merge with the first media description data, generate the second media description data.Because the first media description data now contains
The media description data of first MP4 format video file, therefore, the second media description data after merging can describe
Information in the media description data of above 2 MP4 format video files.Merge after finishing, second MP4 form of record regards
Each audio frame and frame of video position within this document and size in frequency file.
According to said method, after a MP4 format video file acquisition, analysis finish, by its media description number
Merge according to a upper media description data, and record each audio frame and frame of video in this MP4 format video file and exist
Position in this file and size.After the completion of the media description data of all MP4 format video files all merges, finally this
Total media description data is exactly that our required new medias describe data.
This new media describes the media data that data can describe each MP4 format video file, including describe each
The key of the size and location of each frame of video and audio frame and each MP4 format video file in MP4 format video file
The information such as frame.The media description data of all MP4 format video files so to be played all by unified description, by this
New media describes data, each frame of video that what system can will be apparent that easily find in each MP4 format video file and
The size and location of audio frame, facilitates follow-up broadcasting.
After media description data is merged, the playing device to TV for the data is activation is described new media, and
Execution step S300, TV obtains new media and describes duration, the size of frame of video and audio frame and position in data when playing
Put, the information such as key frame.And play out according to the media data of this media description each video file of data acquisition.
In order to more smooth broadcasting, system can obtain a part of media data in advance, in order to avoid in network jitter
Data buffer storage occurs, affects result of broadcast.Certainly, the present invention can also describe data playback previous MP4 lattice by new media
During the media data of formula video file, obtain the media data of next MP4 format video file, when previous MP4 lattice simultaneously
When the media data of formula video file finishes playing, the media data of next MP4 format video file has also loaded and has completed,
Reduce the acquisition time of media data, increase playing efficiency.
The method of the continuous broadcasting MP4 format video file being provided based on the invention described above, present invention also offers a kind of
The continuous system playing MP4 format video file, as shown in Fig. 2 include：
Video file acquisition module 10, for the instruction according to the multiple video file of continuous broadcasting receiving, acquisition is treated
The multiple video files play；
File analyzing module 20, for parsing the file format of acquired multiple video files, when described video file
Extract the media description data of each video file during for MP4 form, the media description data of each video file is closed successively
And for a new media, data is described, it is sent to playing module 30；
Playing module 30, for describing data according to the new media that file analyzing module 20 draws, obtains and plays each
The media data of video file.
Further, as shown in Figure 3.Described file analyzing module 20 also includes：
Pre-set module 21, be used for pre-setting an original media and describe data, and initialize described original media description
Data is sky；
Merge module 22, media description data and described original media for the video file to be played by first are retouched
State data to merge, determine the size of media data and the position in video file in first video file to be played, raw
A temporary media is become to describe data；And by the media description data of next video file to be played respectively with previous life
The temporary media becoming describes data and merges, and iteration successively, until the media description data of all video files to be played
Merging completes, and the size of media data and in video in each each video file to be played all determining merging when merging
Position in file, generates a new media and describes data.
Further, described playing module 30 is additionally operable to obtain next when playing the media data of previous video file
The media data of individual video file.
Preferably, present invention also offers a kind of TV, the continuous broadcasting MP4 form providing including a invention described above regards
The system of frequency file.
In sum, the present invention provides the method for continuous broadcasting MP4 format video file, system and TV, described side
Method includes：Obtain multiple video files to be played；The file format of the acquired multiple video files of parsing, when described video
When file is MP4 form, then extract the media description data of each video file, and the media description number by all video files
For a new media, data is described according to successively merging；Describe data according to described new media to obtain successively and play each video literary composition
The media data of part.The present invention can make the broadcasting of MP4 format video file more smooth, improve TV and continuously play
The playing efficiency of MP4 format video file, it is to avoid the picture playing interval pauses, and improves Consumer's Experience.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved according to the above description or to convert, all these modifications and variations all should belong to the guarantor of claims of the present invention
Shield scope.
Claims (4)
1. a kind of method of continuous broadcasting MP4 format video file is it is characterised in that comprise the following steps：
A, acquisition multiple video files to be played；
The file format of the acquired multiple video files of B, parsing, when described video file is MP4 form, then extracts each
The media description data of video file, and the media description data of all video files is successively merged as a new media description
Data；
C, the media data that data obtains successively and plays each video file is described according to described new media；
Described step C also includes：Each new media according to obtaining describes data acquisition and plays the media of each video file
Data, and play the media data obtaining next video file during the media data of previous video file；
Described new media describe data include the size and location of each frame of video and audio frame in MP4 format video file, with
And the key frame of each MP4 format video file；
Described step A also includes：Television reception continuously plays the instruction of multiple video files, and described instruction includes each video literary composition
The storage address of part, described storage address includes the internet address of video file or the address in local file system；
Described step B specifically also includes：
B1, the media description data of each video file is successively merged, and determine each video file media data big
Little and position in video file, generates a new media and describes data；
Described step B1 specifically also includes：
B11, initialization one original media describe data, described original media is described data and is set to sky；
B12, media description data and the original media of first video file to be played are described data merge, determine first
The size of media data and the position in video file in individual video file to be played, generate a temporary media and describe number
According to；
B13, the media description data of next video file to be played with the temporary media of previous generation, number is described respectively
According to merging, and iteration successively, until the media description data of all video files to be played merges completing, and each merge
When all determine the size of media data and the position in video file in each video file to be played of merging, generate one
New media describes data；
MP4 format video file is made up of media description data and media data, in the data block being encapsulated in.
2. continuous broadcasting MP4 format video file according to claim 1 method it is characterised in that
Described media description data includes the wide high proportion of video file, duration, code check, coded format, frame list, key frame row
Table, the time stamp and media data position in video file；
Described media data includes each audio frame and frame of video in video file.
3. a kind of system of continuous broadcasting MP4 format video file is it is characterised in that described system includes：
Video file acquisition module, for the instruction according to the multiple video file of continuous broadcasting receiving, obtains to be played
Multiple video files；
File analyzing module, for parsing the file format of acquired multiple video files, when described video file is MP4 lattice
Extract the media description data of each video file during formula, the media description data of each video file is successively merged as one
New media describes data, is sent to playing module；
Playing module, the new media for being drawn according to file analyzing module describes data, obtains and play each video file
Media data；
Described playing module is additionally operable to obtain the matchmaker of next video file when playing the media data of previous video file
Volume data；
Described new media describe data include the size and location of each frame of video and audio frame in MP4 format video file, with
And the key frame of each MP4 format video file；
Described file analyzing module also includes：
Pre-set module, be used for pre-setting an original media and describe data, and initialize described original media and describe data and be
Empty；
Merge module, media description data and described original media for the video file to be played by first describe data
Merge, determine the size of media data and the position in video file in first video file to be played, generate one
Temporary media describes data；And by the media description data of next video file to be played respectively with the facing of previous generation
When media description data merge, and iteration successively, until the media description data of all video files to be played has merged
Become, and the size of media data and in video file in each each video file to be played all determining merging when merging
Position, generate a new media data is described；
Described instruction includes the storage address of each video file, described storage address include video file internet address or
Address in local file system for the person；
MP4 format video file is made up of media description data and media data, in the data block being encapsulated in.
4. a kind of TV is it is characterised in that include the system of the continuous broadcasting MP4 format video file described in claim 3.
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| CN201210217794.8A CN103517135B (en) | 2012-06-28 | 2012-06-28 | Method, system and television capable of playing MP4-format video files continuously |
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| CN201210217794.8A CN103517135B (en) | 2012-06-28 | 2012-06-28 | Method, system and television capable of playing MP4-format video files continuously |
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| CN103517135B true CN103517135B (en) | 2017-02-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105528348B (en) * | 2014-09-28 | 2020-03-20 | 阿里巴巴集团控股有限公司 | Media file processing method and device |
| CN105163202A (en) * | 2015-07-20 | 2015-12-16 | 天脉聚源（北京）科技有限公司 | Method and device for switching files |
| CN105355167B (en) * | 2015-11-13 | 2018-04-06 | 西安诺瓦电子科技有限公司 | LED correction coefficient data merging methods |
| CN105471871B (en) * | 2015-11-26 | 2020-07-14 | 阿里巴巴（中国）有限公司 | Method and apparatus for providing a set of video segments |
| CN110545483B (en) * | 2018-05-29 | 2021-08-10 | 北京字节跳动网络技术有限公司 | Method, device and storage medium for playing media file by switching resolution in webpage |
| CN110113389B (en) * | 2019-04-17 | 2022-06-07 | 浙江大华技术股份有限公司 | Video playing method and device, electronic equipment and storage medium |
| CN110856047A (en) * | 2019-12-05 | 2020-02-28 | 湖南省农业信息与工程研究所 | Decomposition method of traceability video file, streaming media server and client |
| CN112423117B (en) * | 2020-06-11 | 2022-12-16 | 上海哔哩哔哩科技有限公司 | Web end video playing method and device and computer equipment |
| CN113079386B (en) * | 2021-03-19 | 2023-01-17 | 北京百度网讯科技有限公司 | Video online playing method and device, electronic equipment and storage medium |
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