CN103517135A - 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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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 playback technology of intelligent television, in particular in TV, play continuously method, system and the TV of MP4 format video file.
Background technology
So-called intelligent television, refer to as smart mobile phone, there is full open model platform, carried operating system, can be by user's program that the third party service provider such as installation and uninstall, game provides voluntarily, by this class method, constantly the function of colour TV is expanded, and can realize by netting twine, wireless network the general name of such class colour TV of surfing the web.Intelligent television not only can be play radio and television, can also realize audio frequency and video and play, connecting Internet etc. function.
And the video file of existing MP4 form adopts the mode of broadcast multiple segments voice separately more, such as a TV play is split into approximately 20 segment video files of 5 minutes conventionally, intelligent television, when playing these a plurality of video files, needs broadcasting one by one, after playing a video file, need to make and be switched to the action of playing next video file, and when switching, need the next video file of buffering, now picture there will be pause, make playing efficiency low, reduce user's experience.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of method, system and TV of playing continuously MP4 format video file in TV, makes broadcasting more smooth, improves playing efficiency, strengthens user and experiences.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A method for continuous broadcasting MP4 format video file, wherein, comprises the following steps:
A, obtain a plurality of video files to be played;
The file format of a plurality of video files that B, parsing are obtained, when described video file is MP4 form, extracts the media description data of each video file, and the media description data of all video files is merged into a new media data of description successively;
C, according to described new media data of description, obtain successively and play the media data of each video file.
The method of described continuous broadcasting MP4 format video file, wherein, described media description data comprise that wide high proportion, duration, code check, coded format, frame list, key frame list, time stamp and the media data of video file are in video file Zhong position;
Described media data comprises each audio frame and the frame of video in video file.
The method of described continuous broadcasting MP4 format video file, wherein, described steps A also comprises: television reception is play the instruction of a plurality of video files continuously, described instruction comprises the memory address of each video file, and described memory address comprises the internet address of video file or in local file system Zhong address.
The method of described continuous broadcasting MP4 format video file, wherein, described step B specifically also comprises:
B1, the media description data of each video file are merged successively, and determine each video file media data size and in video file Zhong position, generate a new media data of description.
The method of described continuous broadcasting MP4 format video file, wherein, described step B1 specifically also comprises:
B11, initialization one original media data of description, be set to sky by described original media data of description;
B12, the media description data of first video file to be played and original media data of description are merged, determine the size of media data in first video file to be played and in video file Zhong position, generate interim media description data;
B13, the media description data of next one video file to be played are merged with the interim media description data of previous generation respectively, and iteration successively, until the media description data of all video files to be played have merged, and while merging, all determine the size of media data in each video file to be played merging at every turn and in video file Zhong position, generate a new media data of description.
The method of described continuous broadcasting MP4 format video file, wherein, described step C also comprises: according to each new media data of description of obtaining, obtain and play the media data of each video file, and obtain the media data of next video file while playing the media data of previous video file.
A system for continuous broadcasting MP4 format video file, wherein, described system comprises:
Video file acquisition module, for according to the instruction of a plurality of video files of continuous broadcasting that receive, obtains a plurality of video files to be played;
File analysis module, for resolving the file format of obtained a plurality of video files, when being MP4 form, extracts described video file the media description data of each video file, the media description data of each video file are merged into a new media data of description successively, send to playing module;
Playing module, for the new media data of description drawing according to file analysis module, obtains and plays the media data of each video file.
The system of described continuous broadcasting MP4 format video file, wherein, described file analysis module also comprises:
Pre-set module, for setting in advance an original media data of description, and described in initialization, original media data of description is empty;
Merge module, for the media description data of first video file to be played and described original media data of description are merged, determine the size of media data in first video file to be played and in video file Zhong position, generate interim media description data; And the media description data of next one video file to be played are merged with the interim media description data of previous generation respectively, and iteration successively, until the media description data of all video files to be played have merged, and while merging, all determine the size of media data in each video file to be played merging at every turn and in video file Zhong position, generate a new media data of description.
The system of described continuous broadcasting MP4 format video file, wherein, described playing module also for obtaining the media data of next video file when playing the media data of previous video file.
, comprise that one plays the system of MP4 format video file continuously, wherein, comprise the system of above-mentioned continuous broadcasting MP4 format video file.
Method, system and the TV of continuous broadcasting MP4 format video file provided by the present invention, owing to having adopted special algorithm that the media description data of a plurality of video files are merged, make TV when playing a plurality of MP4 format video file, playing the media data that a MP4 format video file directly obtains next MP4 format video file plays, and do not need to be switched to the play operation of next MP4 format video file, make the broadcasting of MP4 format video file more smooth, promoted user's experience.
Accompanying drawing explanation
Fig. 1 is the flow chart of the preferred embodiment of the present invention's method of carrying continuous broadcasting MP4 format video file.
Fig. 2 is the structural representation of the preferred embodiment of the present invention's system of playing continuously MP4 format video file.
Fig. 3 is the structural representation of file analysis module in the system shown in Fig. 2.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Generally, MP4 format video file is comprised of media description data and media data, and is encapsulated in the data block of box by name.The wide high proportion of media description data definition video, duration, code check, coded format, frame list, key frame list, time stamp and the media data information such as position hereof.These information all leave name in specific algorithm and are called in the box of moov, and moov box forms (for example mvhd box, trak box etc.) by many box.Media data, after moov box, has comprised the audio and video medium data that many piecemeals are deposited, and the audio and video medium data block that these piecemeals are deposited is commonly referred to sample, and a sample is generally a frame video or a frame audio frequency.By media description data, can calculate size and this sample position hereof of each sample.
Main thought of the present invention is, by analyzing the file structure of a plurality of MP4 format video files to be played, after use special algorithm is carried out " merging " analyzing and processing by these MP4 format video files, make TV when playing a plurality of MP4 format video file, when a MP4 format video file finishes, do not need to be switched to the play operation of next MP4 format video file, directly obtain the media data of next MP4 format video file and play.For MP4 format video file, by analyzing the media description data of a plurality of MP4 format video files, and generate new media description data according to analysis result is final, thereby all media datas of a plurality of MP4 format video files are described by new media description data.And then send to TV to play new media description data and media data.Finally make user when watching video, feel more smooth, improve user and experience.
Referring to Fig. 1, Fig. 1 is the flow chart of the preferred embodiment of the present invention's method of playing continuously MP4 format video file, comprises the following steps:
Step S100, obtain a plurality of video files to be played;
The file format of a plurality of video files that step S200, parsing are obtained, when described video file is MP4 form, extract the media description data of each video file, and the media description data of all video files are merged into a new media data of description successively;
Step S300, according to described new media data of description, obtain successively and play the media data of each video file.
Below in conjunction with specific embodiment, above-mentioned steps is described in detail and is described.
In step S100, TV will receive the instruction of a plurality of video files of continuous broadcasting before playing, and play the memory address that includes each video file in the instruction of a plurality of video files, memory address can be the internet address of video file, can be also in TV local file system Zhong address etc.According to the memory address of each video file, TV is connected to media server by corresponding agreement (as HTTP, RSTP agreement) and downloads these video files, or reads from TV local file system.
After obtaining video file, execution step S200, the form of video file is carried out to analysis judgment, whether the form that judges these video files is MP4 form, if judgement show that the form of these video files is MP4 form, these video files are analyzed, extract the media description data of each video file, the media description data of each video file are merged successively, and determine each video file media data size and in video file Zhong position, generate a new media data of description.
And be analysis one by one when concrete analysis, specifically, first define an original media data of description, and it is carried out to initialization, making its length is 0, is about to original media data of description and is set to sky, does not comprise any media description data in it.Extract after the media description data of first MP4 format video file, extract the media description data of this MP4 format video file, the wide height of video, duration, code check, coded format, frame list, key frame list, time stamp and the audio frequency and video sample information such as position hereof, these information have indicated TV how to play this video file jointly.Again media description data and the original media data of description of first MP4 format video file extracting are merged by special algorithm afterwards, special algorithm specifically superposes the duration in media description data, frame list, key frame list, the audio frequency and video sample information such as position hereof, make a plurality of media description data transformations as a whole, generate interim media description data.
Because the moov box length of interim media description data is now 0, do not comprise any MP4 data of description, therefore when first MP4 format video Piece file mergence is complete, interim media description data have only been described the media description data of first MP4 format video file.Merge complete after, generate the first media description data, record each audio frame of this MP4 format video file and frame of video in this file Zhong position and size information, these information will be used when playing media data.
When the media description data of second MP4 format video file have been extracted, the media description data of this document and the first media description data are merged, generate the second media description data.Because the first media description packet has now contained the media description data of first MP4 format video file, therefore, the second media description data after merging can be described the information in the media description data of above 2 MP4 format video files.Merge complete after, record in second MP4 format video file each audio frame and frame of video in this file Zhong position and size.
According to said method, whenever a MP4 format video file acquisition, analyze complete after, its media description data and upper media description data are merged, and record in this MP4 format video file each audio frame and frame of video in this file Zhong position and size.After the media description data of all MP4 format video files have all merged, total finally these media description data are exactly our needed new media data of description.
This new media data of description can be described the media data of each MP4 format video file, comprises each frame of video and the size of audio frame and the information such as key frame of position and each MP4 format video file in each MP4 format video file of describing.The description that the media description data of all MP4 format video files to be played so are all unified, by this new media data of description, system can very clearly find size and the position of each frame of video and audio frame in each MP4 format video file easily, facilitates follow-up broadcasting.
After media description data are merged, new media data of description is sent to the playing device of TV, and perform step S300, TV obtains the duration in new media data of description when playing, the size and location of frame of video and audio frame, the information such as key frame.And play according to the media data of this each video file of media description data acquisition.
For broadcasting that can be more smooth, system can be obtained a part of media data in advance, in order to avoid occur affecting result of broadcast by data buffer storage when network jitter.Certainly, when the present invention can also play the media data of previous MP4 format video file by new media data of description, obtain the media data of next MP4 format video file simultaneously, when the media data of previous MP4 format video file finishes playing, the media data of next MP4 format video file has also loaded, reduce the acquisition time of media data, increase playing efficiency.
The method of the continuous broadcasting MP4 format video file providing based on the invention described above, the present invention also provides a kind of system of continuous broadcasting MP4 format video file, as shown in Figure 2, comprising:
Video file acquisition module 10, for according to the instruction of a plurality of video files of continuous broadcasting that receive, obtains a plurality of video files to be played;
Playing module 30, for the new media data of description drawing according to file analysis module 20, obtains and plays the media data of each video file.
Further, as shown in Figure 3.Described file analysis module 20 also comprises:
Pre-set module 21, for setting in advance an original media data of description, and described in initialization, original media data of description is empty;
Merge module 22, for the media description data of first video file to be played and described original media data of description are merged, determine the size of media data in first video file to be played and in video file Zhong position, generate interim media description data; And the media description data of next one video file to be played are merged with the interim media description data of previous generation respectively, and iteration successively, until the media description data of all video files to be played have merged, and while merging, all determine the size of media data in each video file to be played merging at every turn and in video file Zhong position, generate a new media data of description.
Further, described playing module 30 also for obtaining the media data of next video file when playing the media data of previous video file.
Preferably, the present invention also provides a kind of TV, comprises the system of the continuous broadcasting MP4 format video file that a invention described above provides.
In sum, method, system and the TV of continuous broadcasting MP4 format video file provided by the invention, described method comprises: obtain a plurality of video files to be played; Resolve the file format of a plurality of video files that obtain, when described video file is MP4 form, extract the media description data of each video file, and the media description data of all video files are merged into a new media data of description successively; According to described new media data of description, obtain successively and play the media data of each video file.The broadcasting that the present invention can make MP4 format video file is more smooth, has improved the playing efficiency that TV is play MP4 format video file continuously, has avoided playing picture intermittently and pauses, and has promoted user's experience.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (10)
1. play continuously a method for MP4 format video file, it is characterized in that, comprise the following steps:
A, obtain a plurality of video files to be played;
The file format of a plurality of video files that B, parsing are obtained, when described video file is MP4 form, extracts the media description data of each video file, and the media description data of all video files is merged into a new media data of description successively;
C, according to described new media data of description, obtain successively and play the media data of each video file.
2. the method for continuous broadcasting MP4 format video file according to claim 1, is characterized in that,
Described media description data comprise that wide high proportion, duration, code check, coded format, frame list, key frame list, time stamp and the media data of video file are in video file Zhong position;
Described media data comprises each audio frame and the frame of video in video file.
3. the method for continuous broadcasting MP4 format video file according to claim 1, it is characterized in that, described steps A also comprises: television reception is play the instruction of a plurality of video files continuously, described instruction comprises the memory address of each video file, and described memory address comprises the internet address of video file or in local file system Zhong address.
4. the method for continuous broadcasting MP4 format video file according to claim 1, is characterized in that, described step B specifically also comprises:
B1, the media description data of each video file are merged successively, and determine each video file media data size and in video file Zhong position, generate a new media data of description.
5. the method for continuous broadcasting MP4 format video file according to claim 4, is characterized in that, described step B1 specifically also comprises:
B11, initialization one original media data of description, be set to sky by described original media data of description;
B12, the media description data of first video file to be played and original media data of description are merged, determine the size of media data in first video file to be played and in video file Zhong position, generate interim media description data;
B13, the media description data of next one video file to be played are merged with the interim media description data of previous generation respectively, and iteration successively, until the media description data of all video files to be played have merged, and while merging, all determine the size of media data in each video file to be played merging at every turn and in video file Zhong position, generate a new media data of description.
6. the method for continuous broadcasting MP4 format video file according to claim 5, it is characterized in that, described step C also comprises: according to each new media data of description of obtaining, obtain and play the media data of each video file, and obtain the media data of next video file while playing the media data of previous video file.
7. play continuously a system for MP4 format video file, it is characterized in that, described system comprises:
Video file acquisition module, for according to the instruction of a plurality of video files of continuous broadcasting that receive, obtains a plurality of video files to be played;
File analysis module, for resolving the file format of obtained a plurality of video files, when being MP4 form, extracts described video file the media description data of each video file, the media description data of each video file are merged into a new media data of description successively, send to playing module;
Playing module, for the new media data of description drawing according to file analysis module, obtains and plays the media data of each video file.
8. the system of continuous broadcasting MP4 format video file according to claim 7, is characterized in that, described file analysis module also comprises:
Pre-set module, for setting in advance an original media data of description, and described in initialization, original media data of description is empty;
Merge module, for the media description data of first video file to be played and described original media data of description are merged, determine the size of media data in first video file to be played and in video file Zhong position, generate interim media description data; And the media description data of next one video file to be played are merged with the interim media description data of previous generation respectively, and iteration successively, until the media description data of all video files to be played have merged, and while merging, all determine the size of media data in each video file to be played merging at every turn and in video file Zhong position, generate a new media data of description.
9. the system of continuous broadcasting MP4 format video file according to claim 7, is characterized in that, described playing module also for obtaining the media data of next video file when playing the media data of previous video file.
10. a TV, is characterized in that, comprises the system of the continuous broadcasting MP4 format video file described in claim 7-9 any one.
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| 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 |
| CN113079386A (en) * | 2021-03-19 | 2021-07-06 | 北京百度网讯科技有限公司 | Video online playing method and device, electronic equipment and storage medium |
| 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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| CN103517135B (en) | 2017-02-08 |
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