CN105744287B - A kind of DVD-VIDEO video feature film content extraction element - Google Patents
A kind of DVD-VIDEO video feature film content extraction element Download PDFInfo
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- CN105744287B CN105744287B CN201610065882.9A CN201610065882A CN105744287B CN 105744287 B CN105744287 B CN 105744287B CN 201610065882 A CN201610065882 A CN 201610065882A CN 105744287 B CN105744287 B CN 105744287B
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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
-
- 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
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/2312—Data placement on disk arrays
-
- 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
- H04N21/232—Content retrieval operation locally within server, e.g. reading video streams from disk arrays
- H04N21/2326—Scheduling disk or memory reading operations
-
- 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
- H04N21/233—Processing of audio elementary streams
- H04N21/2335—Processing of audio elementary streams involving reformatting operations of audio signals, e.g. by converting from one coding standard to another
-
- 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
- H04N21/23614—Multiplexing of additional data 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
- H04N21/43—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
- H04N21/4348—Demultiplexing of additional data 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
- H04N21/43—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
- H04N21/439—Processing of audio elementary streams
- H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
-
- 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
- H04N21/488—Data services, e.g. news ticker
- H04N21/4884—Data services, e.g. news ticker for displaying subtitles
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/81—Monomedia components thereof
- H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
- H04N21/8133—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts specifically related to the content, e.g. biography of the actors in a movie, detailed information about an article seen in a video program
Abstract
The invention discloses a kind of DVD-VIDEO video feature film content extraction elements, including video source parsing module and video frequency source coding synthesis module, video source parsing module is for meta-data extraction and exports dvd content to video frequency source coding synthesis module, video frequency source coding synthesis module is for parsing the synthesis source DVD-VIDEO, this DVD-VIDEO video feature film content extraction element, start with from the playing principles of DVD-VIDEO, using the gimmick of forward analysis, it can effectively support multi-angle DVD-VIDEO video source, the merging of different DVD-VIDEO video sources, and any angle can be supported to extract, any subtitle selection, any track selection, the removing of spontaneous menu system, autopositive video content extracts, collection of TV plays is automatically separated, more collection of dramas are certainly Dynamic circuit connector at etc. functions, greatly improve contents production efficiency.
Description
Technical field
The present invention relates to a kind of DVD-VIDEO video feature film content extraction elements.
Background technique
When the external feed of content providers, general video format is usually transcoded into according to the requirement of the content side of selecting and purchasing, and
Presently, there are the statuses for using DVD-VIDEO video format in the source piece source of content providers.
Generally, content providers are that the vob file on DVD-VIDEO CD is spliced into one greatly according to document order
File carries out being transcoded into object format again.There are great risks for this way, because there are polygonal for DVD-VIDEO video format
Degree, multi-subtitle, menu navigation systems etc., while the content of DVD-VIDEO system is not simply according to video sequence file
What the mode after name sequence played.Nowadays merely vob file is spliced, is to be unable to meet production correctly in most cases
Content need, and be mostly can be only achieved purpose using many work integrations of operation, production efficiency is low.
In addition, being widely present the shape for collecting more and being compressed in same portion's DVD disc for the DVD-VIDEO of TV play type
Formula simply by analysis vob file can not be accomplished collection of drama lift-off processing.And for many film monumental works, video system
Column (such as upper and lower collection) are distributed across in multiple DVD disc, and the side of selecting and purchasing suppresses its video sequence sometimes for provider
In single video content, this is also that the method for current VOB parsing can not accomplish.
DVD-VIDEO video generally comprises VIDEO_TS catalogue, and there are multiple texts such as IFO, BUP, VOB under this catalogue
Part.IFO file describes the navigation content of DVD-VIDEO video media, be mainly used for instructing player carry out Title selection,
The realization of the functions such as chapters and sections jump, menu is presented, sound view/angle/subtitle；BUP file is the copy of IFO file, is mainly
Can be used BUP file when IFO file, which is destroyed, to be read plays out；Vob file houses the coding of audio-video
Content, video and audio, subtitle including menu and positive etc..The fast of video is participated in by IFO and vob file jointly in normal play
It is operated into TrickPlay such as rewind, Seek.Existing solution is mostly to show DVD-VIDEO bibliographic structure as shown in Figure 1
File in the boxed area of example diagram carries out transcoding production after forming a file.Judgment criteria is mostly the VOB for seeing which series
Document size is maximum, and being considered as it is positive, and can be according to VTS_02_1.VOB, VTS_02_2.VOB to VTS_02_n.VOB
Arrangement carry out sequence reading.When encountering feature film content not according to the storage of this order, the video sequence produced will lead to
It is undesirable.
Summary of the invention
Based on this, it is necessary to which the extraction of multi-angle DVD-VIDEO video source, difference DVD-VIDEO view can be supported by providing one kind
Frequency source merges, and has the DVD-VIDEO for the functions such as positive automatically extracts, collection of TV plays is automatically separated, more collection of dramas are automatically synthesized
Video feature film content extraction element.
According to an aspect of the present invention, a kind of DVD-VIDEO video feature film content extraction element, including video source are provided
Parsing module and video frequency source coding synthesis module, video source parsing module is for meta-data extraction and exports dvd content to video
Source code synthesis module, video frequency source coding synthesis module is for parsing the synthesis source DVD-VIDEO.
It in one of the embodiments, further include video source selection previewing module, video source selection previewing module is used
Family preview video, confirmation message simultaneously feed back to video source parsing module, and the information that video source parsing module confirms user exports
Dvd content is to video frequency source coding synthesis module.
The dvd content of video source parsing module output is retouching for Title number and each Title in one of the embodiments,
State metadata.
Metadata includes angle number, track number, subtitle number, the first number of track description in one of the embodiments,
According to and subtitle descriptive metadata, track descriptive metadata include audio coding parameters, subtitle descriptive metadata includes subtitle coding
Parameter and languages.
Audio coding parameters include coded format, channel number, sample rate and languages in one of the embodiments,.
Video source parsing module is used to select the feedback information of previewing module according to video source in one of the embodiments,
Determining Title parameter is provided.
This DVD-VIDEO video feature film content extraction element, starts with from the playing principles of DVD-VIDEO, using forward direction
The gimmick of analysis can effectively support any angle to extract, the selection of any subtitle, the selection of any track, spontaneous menu system
Removing, autopositive video content extracts, collection of TV plays is automatically separated, more collection of dramas are automatically synthesized etc. functions, greatly improve in
Hold production efficiency.
Detailed description of the invention
Fig. 1 is DVD-VIDEO bibliographic structure exemplary diagram；
Fig. 2 is a kind of structural schematic diagram of DVD-VIDEO video feature film content extraction element of an embodiment of the present invention；
Fig. 3 is the meta-data extraction logic schematic block diagram of the video source parsing module of Fig. 2；
Fig. 4 is the functional block diagram that list DVD-VIDEO flows, list Title is exported；
Fig. 5 is more DVD-VIDEO stream, carries out the functional block diagram that Title merges output.
Specific embodiment
It to facilitate the understanding of the present invention, below will be with specific embodiment to invention is more fully described.But this
Invention can be realized in many different forms, however it is not limited to embodiment described herein.On the contrary, providing this embodiment
Purpose be to make the disclosure of the present invention more thorough and comprehensive.
As shown in Fig. 2, be the DVD-VIDEO video feature film content extraction element of one embodiment of the invention, the present embodiment
Extraction element is by video source parsing module 10, video source selection previewing module 30 and 50 three parts group of video frequency source coding synthesis module
At.
The input of video source parsing module 10 is DVD-VIDEO media directory, as shown in figure 3, being video source parsing module
The extraction logic schematic block diagram of 10 pairs of metadata, video source parsing module 10 can carry out meta-data extraction, and output result is Title
The descriptive metadata of number, each Title.Metadata includes angle number, track number, subtitle number, each track and subtitle
Specifically describe metadata etc..Track descriptive metadata describes audio coding parameters (coded format, channel number, sample rate, languages
Deng), subtitle descriptive metadata includes subtitle coding parameter and languages etc..
After parsing Title number, video source parsing module 10 provides two kinds of positive recommendation patterns to user, film mould
Formula and TV play mode, film mode are selected as positive to user using longest Title, and TV play mode can utilize each play
Collect the almost the same principle of duration, is to choose Title duration automatically greater than 10 minutes in the present embodiment, and appearance when each Title
Away from the Title group for being no more than 2 minutes.In the present embodiment, to avoid special circumstances from occurring, user can voluntarily revise selection
?.It may be implemented to skip the purpose that menu video directly carries out positive production by the method.
When user clicks each Title, angle, audio stream, the caption stream of needs can choose.The video of the present embodiment
Source resolution module 10 additionally provides default languages mechanism and candidate languages mechanism, and each Title can automatically select default languages,
In the absence of defaulting languages, candidate languages are used.Such as default languages are Chinese, when candidate languages are English, if Title
In containing Chinese audio stream when, this audio stream can be selected, otherwise can go attempt search English stream, if all do not had, can write from memory
Recognize first audio stream.Subtitle is also using same treatment mechanism.It is appreciated that user can also close audio or word
Curtain.
After user selectes Title parameter (which Title, which audio stream, which caption stream, which angle), video
Source resolution module 10 parses the Cell sequence in PGC from the specified corresponding VTSIFO file of Title, and Cell sequence includes
The start-stop location information of each Cell, in the presence of having multi-angle, the Cell of each angle can be also described in PGC, selection
The Cell of respective angles is parsed, and video source parsing module 10 is again by specified view from the vob file that these Cell are directed toward
Frequency stream, audio stream, caption stream are exported.
The video source of the present embodiment selects previewing module 30 for a player module, in video source parsing module 10 above-mentioned
After selecting Title, audio, subtitle, angle, real-time audio and video broadcasting can be provided, full frame viewing can be amplified, and provide multiple velocity
User can have an opportunity to confirm that selected Title is that it is produced for the operation such as F.F., multiple velocity rewind, Seek.
In the process, user further can carry out content time reduction, Ke Yisheng in a manner of What You See Is What You Get (playing form)
At video clip or try content.
Video frequency source coding synthesis module 50 provides the parsing in any number of source DVD-VIDEO simultaneously, therefore user can be with
Solve content across multiple sources there are the case where.
The video frequency source coding synthesis module 50 of the present embodiment may specify multiple sources DVD-VIDEO, and select in each source
Across source code one video of synthesis is carried out after good positive Title and angle, audio, subtitle configuration；And in the single source DVD-VIDEO
In, multiple collection of drama Title (containing angle, audio, subtitle configuration) is selected, the multiple Title target video texts of output can be encoded simultaneously
Part.The video frequency source coding synthesis module 50 of the present embodiment can also support the video coding parameter of file destination to configure, and defeated simultaneously
The target video file of multiple and different coding parameters out.
Specifically, the principle of video frequency source coding synthesis module 50 is as follows:
1, list DVD-VIDEO stream, list Title are exported.Its principle is as shown in figure 4, DvD-VIDEO video source resolution mould
The Title information that block 10 is selected according to user, output video/audio/caption data, coding synthesis module progress video/audio/
The decoding of three kinds of data of subtitle, is encoded according to coding parameter set by user, is carried out according to the requirement of destination file format
Data interlacing is ultimately written file destination.
2, list DVD-VIDEO flows, carries out more Title outputs.Its principle is according to aforementioned " single DVD-VIDEO stream, list Title
Exported " principle description, recycled, more Title output dismantling exported at multiple list Title.
3, more DVD-VIDEO streams, progress Title merge output.Its principle is as shown in figure 5, under such demand, video source
Parsing module 10 will receive multiple DVD-VIDEO video sources, be exported and complete by video source parsing module 10 in first video source
Afterwards, last time stamp T is recorded, second video source is then read and (is being cut using being exported using time stamp T as time origin
When changing video source, video source parsing module 10 needs to carry specific media coding format description when downstream sending data, with
The video frequency source coding synthesis module 50 in downstream is facilitated normally to decode).In this case, from video frequency source coding synthesis module 50
From the point of view of angle, it is not aware that video source is switched, therefore can continue to generate file destination.
In the foregoing written description, video frequency source coding synthesis module 50 includes media data decoder module, and media data decodes mould
Block support different coding format self-adaption of decoding, therefore when different data sources switch over can with adaptive video/
The variation of audio/subtitle coding parameter.
The DVD-VIDEO video feature film content extraction element of the present embodiment, starts with from the playing principles of DVD-VIDEO, adopts
With the gimmick of forward analysis, the conjunction of multi-angle DVD-VIDEO video source, difference DVD-VIDEO video source can be effectively supported
And and any angle can be supported to extract, the selection of any subtitle, the selection of any track, the removing of spontaneous menu system, autopositive view
The functions such as frequency contents extraction, collection of TV plays are automatically separated, more collection of dramas are automatically synthesized greatly improve contents production efficiency.
Individual embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (3)
1. a kind of DVD-VIDEO video feature film content extraction element, which is characterized in that including video source parsing module, video source
It encodes synthesis module and video source selects previewing module,
The video source parsing module is for meta-data extraction and exports dvd content to the video frequency source coding synthesis module, institute
The descriptive metadata that dvd content is Title number and each Title is stated,
The video frequency source coding synthesis module is used for while parsing any number of source DVD-VIDEO, including single DVD-VIDEO stream
And list Title output, list DVD-VIDEO stream and more Title output, more DVD-VIDEO stream and Title merge output,
The video source selection previewing module is for user's preview video, confirmation message and feeds back to the video source resolution mould
Block,
The information that the video source parsing module confirms user exports dvd content to the video frequency source coding synthesis module, institute
Title parameter of the video source parsing module for selecting the feedback information offer of previewing module determining according to the video source is stated,
In selected Title parameter, the video source parsing module parses in PGC from the corresponding VTSIFO file of specified Title
Cell sequence, the Cell sequence include each Cell start-stop location information, in the presence of having multi-angle, each angle
The Cell of degree can be also described in PGC, select the Cell of respective angles to be parsed, the video source resolution mould
Block exports specified video flowing, audio stream, caption stream from the vob file that the Cell is directed toward.
2. a kind of DVD-VIDEO video feature film content extraction element according to claim 1, which is characterized in that the member
Data include angle number mesh, track number, subtitle number, track descriptive metadata and subtitle descriptive metadata, and the track is retouched
Stating metadata includes audio coding parameters, and the subtitle descriptive metadata includes subtitle coding parameter and languages.
3. a kind of DVD-VIDEO video feature film content extraction element according to claim 2, which is characterized in that the sound
Frequency coding parameter includes coded format, channel number, sample rate and languages.
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