CN106658030B - A kind of playback method and equipment of the composite video comprising SCVF single channel voice frequency multi-channel video - Google Patents
A kind of playback method and equipment of the composite video comprising SCVF single channel voice frequency multi-channel video Download PDFInfo
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/21805—Source of audio or video content, e.g. local disk arrays enabling multiple viewpoints, e.g. using a plurality of cameras
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23418—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
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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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video streams
-
- 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
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
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Abstract
The invention proposes a kind of playback method, that is, equipment of composite video comprising SCVF single channel voice frequency multi-channel video, and wherein method includes the quantity information in determining composite video comprising video, determine main view frequency corresponding with audio；The child window of corresponding number is established in broadcast window according to the quantity in composite video comprising video, and will be corresponded per video all the way and window；It reads for the first time, obtains the preceding N frame of audio and the preceding N frame per video all the way, when audio and Ge Lu video are discontented with N frame, all obtain；The decoding of multithreading audio-visual synchronization, textures, audio broadcasting display are carried out according to audio time stamp；X time is read, and obtains the N frame audio since current frame number and each road video；Present device includes: identification device, establishes window device, for the first time reading device, playing device, subsequent reading device, end device.The present invention comes out multiple videos in an interface display, while can arbitrarily adjust broadcast interface size and the position of each road video.
Description
Technical field
The present invention relates to video broadcasting fields, and in particular to a kind of composite video comprising SCVF single channel voice frequency multi-channel video is broadcast
Put method and apparatus.
Background technique
With the development of internet video technology, people have got used to setting by the electronics with video playback capability
It is standby, such as television set, PC and intelligent terminal etc., the various videos of internet viewing are connected to enrich free life.
Currently, in the prior art, after the electronic equipment with video playback capability is connected to internet, user is watching various live streaming views
When frequency, video server requests to play out the video stream client of live streaming according to user.However, when user is according to upper
When stating prior art viewing live video program, it can only be watched with the shooting angle that current video stream provides, Wu Fatong
When from other angle view videos scene content.Therefore, in order to meet the viewing demand of user, answering comprising multi-channel video
It closes video to come into being, in actual video broadcasting, such as the video playing of competitive sports, be shown as on the same screen interface
Show the video data of multichannel.
At present in the application scenarios of multi-cam shooting, multi-path video stream namely the shooting of each camera will be generated
Video flowing be video flowing all the way.When playing multi-path video stream, multiple broadcastings are opened simultaneously usually on playback equipment
Client, it is corresponding on the display screen of each client end of playing back to play video flowing all the way.In this way, can use on playback equipment
Multiple client end of playing back show the image of multi-path video stream simultaneously.In existing broadcasting scheme, it will pop up multiple players pair
Words frame carries out the broadcasting of multiple videos, causes multiple labels pages to generate, is not easy to manage, meanwhile, the adjustment of level is brought
It is inconvenient.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of broadcastings of composite video comprising SCVF single channel voice frequency multi-channel video
Method and apparatus.The playback method and equipment of a kind of composite video comprising SCVF single channel voice frequency multi-channel video provided by the invention, will
Multiple videos come out in an interface display, while can arbitrarily adjust broadcast interface size and the position of each road video.
The technical solution adopted by the invention is as follows:
A kind of playback method of the composite video comprising SCVF single channel voice frequency multi-channel video, includes the following steps:
S1. composite video is opened；
S2. the SCVF single channel voice frequency and multi-channel video in composite video are identified；Determine the quantity in composite video comprising video
Information determines main view frequency corresponding with audio；
S3. the child window of corresponding number is established in broadcast window according to the quantity in composite video comprising video, and will be every
Video and window correspond all the way；
S4. read for the first time, obtain the preceding N frame of audio and the preceding N frame per video all the way, when audio and Ge Lu video not
When full N frame, all obtain；N is natural number；
S5. the decoding of multithreading audio-visual synchronization, textures, audio broadcasting display are carried out according to audio time stamp；When play extremely
When M frame, operating procedure S6 while playing composite video；M is greater than N/2, less than the natural number of N；
S6. X time is read, and obtains the N frame audio since current frame number and each road video, if without data,
To step S7；If there is data, until step S5；X is the positive integer greater than 1；
S7. terminate to play.
A kind of playback method of above-mentioned composite video comprising SCVF single channel voice frequency multi-channel video, wherein the step S6 packet
Including specifically further includes following content: main view frequency is synchronous by timestamp with audio, other videos pass through frame number and main audio video synchronization.
Specifically refer to the Y frame of other videos and the Y frame synchronization of main view frequency.
A kind of playback method of above-mentioned composite video comprising SCVF single channel voice frequency multi-channel video, wherein the child window root
According to the adjustment for needing to carry out position, size, level by pulling.
A kind of playback method of above-mentioned composite video comprising SCVF single channel voice frequency multi-channel video, wherein N value 100.
The playback method of above-mentioned a kind of composite video comprising SCVF single channel voice frequency multi-channel video, wherein in M value 90-95
Random natural number.
A kind of playback equipment of the composite video comprising SCVF single channel voice frequency multi-channel video, comprising:
Device for opening: to open composite video；
Identification device: to identify SCVF single channel voice frequency and multi-channel video in composite video；It determines in composite video and includes
The quantity information of video determines main view frequency corresponding with audio；
Establish window device: to establish corresponding number in broadcast window according to the quantity in composite video including video
Child window, and will be corresponded per video all the way and window；
Reading device for the first time: carrying out first time reading, obtaining the preceding N frame of audio and the preceding N frame per video all the way,
When audio and Ge Lu video are discontented with N frame, all obtain；N is natural number；
Playing device: aobvious to be played according to audio time stamp progress multithreading audio-visual synchronization decoding, textures, audio
Show；When broadcasting to M frame, subsequent reading device is read out；M is greater than N/2, less than the natural number of N；
Subsequent reading device: reading to carry out X time, obtains N frame audio and each road view since current frame number
Frequently, if without data, no content transmission to playing device；If there is data, reading of content is transmitted to playing device；X
For the positive integer greater than 1；
Terminate device: terminating to play to show when playing device does not have data to play.
The playback equipment of above-mentioned a kind of composite video comprising SCVF single channel voice frequency multi-channel video, wherein further include synchronous dress
Set: main view frequency to be played simultaneously with audio by timestamp, other videos are played simultaneously by frame number and main view frequency.
The present invention provides the playback method and equipment of a kind of composite video comprising SCVF single channel voice frequency multi-channel video, effective needle
Broadcasting approach is provided to the existing composite video comprising multi-channel video, and in playing process, to every road video
It synchronizes.The specific video playing as being directed to competitive sports, realizes and passes through multiple subwindows on a terminal screen
More race contents are watched from different perspectives.Since composite video is played out in the child window of a broadcast window, i.e.,
The image of each road video flowing can be shown on the display screen of the same client end of playing back, therefore solve and broadcast in the prior art
When putting equipment and opening multiple client end of playing back at the same time and play multi-path video stream, the problem of a large amount of system resource can be consumed；It reaches
To multi-path video stream can be played merely with a client end of playing back, to reduce the effect occupied to system resource.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of the playback method of the composite video comprising SCVF single channel voice frequency multi-channel video of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
A kind of playback equipment of the composite video comprising SCVF single channel voice frequency multi-channel video, including device for opening, identification device, build
Vertical window device, for the first time reading device, playing device, subsequent reading device, terminate device at synchronizing device, in which:
Device for opening: to open composite video；
Identification device: to identify SCVF single channel voice frequency and multi-channel video in composite video；It determines in composite video and includes
The quantity information of video determines main view frequency corresponding with audio；
Establish window device: to establish corresponding number in broadcast window according to the quantity in composite video including video
Child window, and will be corresponded per video all the way and window；
Reading device for the first time: carrying out first time reading, obtaining the preceding N frame of audio and the preceding N frame per video all the way,
When audio and Ge Lu video are discontented with N frame, all obtain；N is natural number；
Synchronizing device: to main view frequency is synchronous by timestamp with audio, other videos are same by frame number and main view frequency
Step；
Playing device: aobvious to be played according to audio time stamp progress multithreading audio-visual synchronization decoding, textures, audio
Show；
Subsequent reading device: reading to carry out X time, obtains N frame audio and each road view since current frame number
Frequently, if without data, until terminating device；If there is data, until playing device；X is the positive integer greater than 1；
Terminate device: terminating to play to show when playing device does not have data to play.
As shown in Figure 1, a kind of playback method of the composite video comprising SCVF single channel voice frequency multi-channel video, includes the following steps:
S1. composite video is opened；It include SCVF single channel voice frequency and multi-channel video in composite video.
S2. the SCVF single channel voice frequency and multi-channel video in composite video are identified；Determine the quantity in composite video comprising video
Information determines main view frequency corresponding with audio；The main view frequency, which refers to, provides the video of audio, i.e. sound-content in audio is
It is taken place frequently out by main view.Using competitive sports as example, the video of audio, ewscaster including explanation and each visual angle of multichannel
The video for scene of competing, wherein ewscaster explains race, then the video of ewscaster is main video, the video of ewscaster
It is synchronous by timestamp with the audio of explanation, other each road videos and ewscaster's audio video synchronization；
S3. the child window of corresponding number is established in broadcast window according to the quantity in composite video comprising video, and will be every
Video and window correspond all the way；In specific implementation, when having identified five road videos, five sons are established in broadcast window
Window, and each child window plays video all the way；Child window as desired by pull carry out position, size, level tune
It is whole.As soon as every increase child window, will increase the consumption of system resource, therefore, establishes son according to the quantity information of video
Window rationally utilizes system resource；
S4. it reads for the first time, preceding 100 frame of audio and preceding 100 frame per video all the way is obtained, when audio and Ge Lu regard
When frequency is discontented with 100 frame, all obtain；The frame number of acquisition is more, more to the occupancy of the system resources such as memory, therefore, is protecting
Less acquisition frame number also embodies the reasonable utilization to system resource in the case that card composite video plays smoothness.
S5. main view frequency is synchronous by timestamp with audio, other videos pass through frame number and main audio video synchronization.Particularly
Refer to that the 1st frame of other road videos and the 1st frame synchronization of main view frequency, the 2nd frame of the 2nd frame and main view frequency of other road videos are same
The Y frame of other road videos of step ... ... and the Y frame synchronization of main view frequency.It is same that multithreading audio-video is carried out according to audio time stamp
Walk decoding, textures, audio broadcasting display；When broadcasting to 95 frame, operating procedure S6 while playing composite video；Starting
More rearward, then to the consumption of system resource with regard to smaller, but the frame number for starting operating procedure S6 leans on very much the frame number of operating procedure S6
Afterwards, the broadcasting of composite video just will appear the phenomenon that Caton, therefore, when for choosing 100 frame audios and each road video every time,
Preferably start operating procedure S6 when playing any one frame into 90-95 frame, that is, reduce the consumption to system resource,
In turn ensure the smooth playing of composite video.
S6. X time is read, and obtains the 100 frame audios since current frame number and each road video, if without data,
Then to step S7；If there is data, until step S5；X is the positive integer greater than 1；
S7. when step S6 is obtained less than new played data, the content in S5 just terminates entire compound after finishing
The broadcasting of video.
The present invention will include that the composite video file of SCVF single channel voice frequency multi-channel video plays, and passes through and obtains audio number therein
According to being synchronized according to the time of audio to video data, then simultaneously solved multi-channel video and audio using multithreading
Video data after multipath decoding, is mapped to the specific position i.e. child window of the same broadcast window by code, and every road video is corresponding
The position of child window the adjustment of size, level is carried out by pulling, audio data decoder is played by sound card, final realization
Composite video is played simultaneously.
It should be noted that the application can be carried out in the assembly of software and/or software and hardware, for example, can adopt
With specific integrated circuit (ASIC), general purpose computer or any other realized similar to hardware device.In one embodiment
In, the software program of the application can be executed to implement the above steps or functions by processor.Similarly, the application
Software program (including relevant data structure) can be stored in computer readable recording medium, for example, RAM memory,
Magnetic or optical driver or floppy disc and similar devices.In addition, hardware can be used to realize in some steps or function of the application, example
Such as, as the circuit cooperated with processor thereby executing each step or function.
In addition, a part of the application can be applied to computer program product, such as computer program instructions, when its quilt
When computer executes, by the operation of the computer, it can call or provide according to the present processes and/or technical solution.
And the program instruction of the present processes is called, it is possibly stored in fixed or moveable recording medium, and/or pass through
Broadcast or the data flow in other signal-bearing mediums and transmitted, and/or be stored according to described program instruction operation
In the working storage of computer equipment.Here, including a device according to one embodiment of the application, which includes using
Memory in storage computer program instructions and processor for executing program instructions, wherein when the computer program refers to
When enabling by processor execution, method and/or skill of the device operation based on aforementioned multiple embodiments according to the application are triggered
Art scheme.
It is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned exemplary embodiment, Er Qie
In the case where without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and scope of the present application is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included in the application.Any reference signs in the claims should not be construed as limiting the involved claims.This
Outside, it is clear that one word of " comprising " does not exclude other units or steps, and odd number is not excluded for plural number.That states in device claim is multiple
Unit or device can also be implemented through software or hardware by a unit or device.The first, the second equal words are used to table
Show title, and does not indicate any particular order.
Certainly, it is obvious to a person skilled in the art that the application is not limited to the details of above-mentioned exemplary embodiment, and
And without departing substantially from spirit herein or essential characteristic, the application can be realized in other specific forms.Therefore,
In all respects, the present embodiments are to be considered as illustrative and not restrictive, scope of the present application is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are included in the application.Right involved in should not treating any reference in the claims as limiting is wanted
It asks.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of playback method of the composite video comprising SCVF single channel voice frequency multi-channel video, which comprises the steps of:
S1. composite video is opened；
S2. the SCVF single channel voice frequency and multi-channel video in composite video are identified；Determine the quantity information in composite video comprising video,
Determine main view frequency corresponding with audio；
S3. the child window of corresponding number is established in broadcast window according to the quantity in composite video comprising video, and will be per all the way
Video and window correspond；
S4. it reads for the first time, the preceding N frame of audio and the preceding N frame per video all the way is obtained, when audio and Ge Lu video are discontented with N
When frame, all obtain；N is natural number；
S5. the decoding of multithreading audio-visual synchronization, textures, audio broadcasting display are carried out according to audio time stamp；When broadcasting to M frame
When, operating procedure S6 while playing composite video；M is greater than N/2, less than the natural number of N；
S6. X time is read, and obtains the N frame audio since current frame number and each road video, if without data, until step
Rapid S7；If there is data, until step S5；X is the positive integer greater than 1；Main view frequency with audio by timestamp it is synchronous, other videos
Pass through frame number and main audio video synchronization；
S7. terminate to play.
2. a kind of playback method of composite video comprising SCVF single channel voice frequency multi-channel video according to claim 1, feature
It is, the child window carries out the adjustment of position, size, level as desired by pulling.
3. a kind of playback method of composite video comprising SCVF single channel voice frequency multi-channel video according to claim 1 or 2, special
Sign is, N value 100.
4. a kind of playback method of composite video comprising SCVF single channel voice frequency multi-channel video according to claim 1 or 2, special
Sign is, the random natural number in M value 90-95.
5. a kind of playback equipment of the composite video comprising SCVF single channel voice frequency multi-channel video characterized by comprising
Device for opening: to open composite video；
Identification device: to identify SCVF single channel voice frequency and multi-channel video in composite video；It determines in composite video comprising video
Quantity information, determine corresponding with audio main view frequently；
Establish window device: the sub- window to establish corresponding number in broadcast window according to the quantity in composite video comprising video
Mouthful, and will be corresponded per video all the way and window；
Reading device for the first time: to carry out first time reading, the preceding N frame of audio and the preceding N frame per video all the way is obtained, sound is worked as
When the road Pin Hege video is discontented with N frame, all obtain；N is natural number；
Playing device: to carry out the decoding of multithreading audio-visual synchronization, textures, audio broadcasting display according to audio time stamp；When
When broadcasting to M frame, subsequent reading device is read out；M is greater than N/2, less than the natural number of N；
Subsequent reading device: it is read to carry out X time, obtains the N frame audio since current frame number and each road video, such as
Fruit does not have data, then without content transmission to playing device；If there is data, reading of content is transmitted to playing device；X be greater than
1 positive integer；
Terminate device: terminating to play to show when playing device does not have data to play；
Further include synchronizing device: main view frequency to be played simultaneously with audio by timestamp, other videos pass through frame number and master
Audio video synchronization plays.
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| CN107483971A (en) * | 2017-06-26 | 2017-12-15 | 广州市千钧网络科技有限公司 | A kind of processing method of audio/video flow, service unit and viewing apparatus |
| CN108900857B (en) * | 2018-08-03 | 2020-12-11 | 东方明珠新媒体股份有限公司 | Multi-view video stream processing method and device |
| CN109874027A (en) * | 2019-03-11 | 2019-06-11 | 宸瑞普惠(广州)科技有限公司 | A kind of low delay educational surgery demonstration live broadcasting method and its system |
| CN110896464B (en) * | 2019-11-19 | 2022-03-04 | 北京奇艺世纪科技有限公司 | Audio data generation method, device and system and controller |
| CN114245192B (en) * | 2021-12-20 | 2024-02-02 | 北京数码视讯软件技术发展有限公司 | Multi-process decoding and playing method and device |
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