CN102769730A - Off-line cataloging method for broadcast and television audio-visual materials - Google Patents
Off-line cataloging method for broadcast and television audio-visual materials Download PDFInfo
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- CN102769730A CN102769730A CN2012101299562A CN201210129956A CN102769730A CN 102769730 A CN102769730 A CN 102769730A CN 2012101299562 A CN2012101299562 A CN 2012101299562A CN 201210129956 A CN201210129956 A CN 201210129956A CN 102769730 A CN102769730 A CN 102769730A
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Abstract
An embodiment of the invention discloses an off-line cataloging method for broadcast and television audio-visual materials. The method specifically includes firstly, acquiring video and audio files from a remote media resource system; secondly, analyzing the video and audio files, and extracting key frame information of the video and audio files; thirdly, establishing a layered structure which includes a program layer, a segment layer, a scene layer and a lens layer according to the key frame information; fourthly, independently cataloging the layers according to the cataloging standards of a state system of radio, film and television to acquire cataloging metadata; and fifthly, submitting the cataloging metadata to the remote media resource system and publishing. Off-line cataloging is performed to the broadcast and television audio-visual materials, influence of the network speed is avoided, and accordingly network bandwidth is saved greatly, and cataloging efficiency is improved.
Description
Technical field
The present invention relates to the tv broadcasting technology field, particularly a kind of radio and television audio and video files off-line categorization.
Background technology
Catalogue is meant according to certain standard and rule; Surface and content characteristic to every kind of entity of document information content (Item) in certain scope are analyzed, select, are described; And write down and become an article or item in a contract, then an article or item in a contract is organized the process that becomes catalogue (Catalogue) or bibliography (Bibliography) in certain sequence.
Video and audio material catalogue be meant on computer platform with cataloging software with video and audio material by certain requirement carry out cutting, sort out, record, index; And annotate the record Word message programme content is summarized; Extract keyword; The video and audio material catalogue can help to write and direct and inquire tape or the slice, thin piece of wanting fast and accurately, makes video and audio material be able to utilize once more, the wastings of resources such as the human and material resources of saving film making subband, fund.
Audio and video files catalogues is looked audio resource to digitlization and is done necessary metadata description, makes things convenient for the user under the situation of not opening resource, to understand resource and resource is made judgement, to improve resource lookup efficient, eliminates information island, realizes that the magnanimity resource converges.
Along with the development of broadcasting and TV cause, the rise of the integration of three networks, the media asset management technology will be played a greater and greater role as the basis of Content Management.For satisfying the exchanges data demand between the media asset management system, the content format that the inventory information of TV audio and video files is described is the XML structured language, four layers of catalogue of national standard model: be divided into the program layer, slice layer, scene layer, camera lens layer.
In the prior art, usually adopt the method for online catalogue, from the media resource system database, call the file that needs catalogue looking audio file; Look in the process of audio file in preview, manually select and look going into a little and going out a little of audio file, go into a little and go out to name a person for a particular job to look the program layer that audio file is divided into national catalogue standard according to selected; Slice layer; The scene layer, the camera lens layer, and then make a catalogue according to layering.The difficult point of this online catalogue mainly is: it is bigger to look the audio file code check, and file takies big disk space, is difficult for copying on the unit and makes a catalogue, and takies a large amount of network bandwidth previews when causing online catalogue and looks audio file.
Summary of the invention
To defective of the prior art, the present invention adopts the off-line catalogue to the radio and television audio and video files, not influenced by network speed, saves a large amount of network bandwidths, improves catalogue efficient.
The invention provides a kind of radio and television audio and video files off-line categorization in order to solve above technical problem, specifically comprise:
Obtain from long-range media resource system and to look audio file;
Analyze the said audio file of looking, extract the said key frame information of looking audio file;
According to said key frame information, set up hierarchy, said hierarchy comprises program layer, slice layer, scene layer and camera lens layer;
According to national broadcasting and TV system catalogue standard said layering is made a catalogue separately, obtain the metadata of making a catalogue;
Submit said catalogue metadata to said long-range media resource system and issue.
Wherein, said key frame information comprise the key frame picture and with said key frame picture time corresponding position.
Wherein, the said audio file of looking of said analysis extracts the said key frame information of looking audio file, specifically comprises:
Analyze the said audio file code stream of looking, obtain said point, transition of looking audio file, said point, transition is the said camera lens switching point of looking audio file;
Obtain the frame of video corresponding with said point, transition according to said point, transition, said frame of video is a key frame;
Extract said key frame information.
Wherein, said extraction is said look the key frame information of audio file after, also comprise:
The said key frame information that extracts is saved in the expandable mark language XML meta data file.
Wherein, the said said key frame information that will extract is saved in the expandable mark language XML meta data file, specifically comprises:
Key frame picture in the said key frame information is saved as the JPEG picture, and, be saved in the said XML meta data file said JPEG picture compression.
Wherein,, set up hierarchy, specifically comprise according to said key frame information:
According to independent key frame, set up said camera lens layer;
Interval according to the front and back key frame, set up said camera lens layer, scene layer, slice layer and program layer.
Wherein, said said layering is made a catalogue separately, cataloged priority is: program layer, slice layer, scene layer and camera lens layer.
Compared with prior art, the embodiment of the invention has the following advantages: through the radio and television audio and video files being adopted the off-line catalogue, not influenced by network speed, save a large amount of network bandwidths, improve catalogue efficient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1: the flow chart that is a kind of radio and television audio and video files off-line categorization in the embodiment of the invention 1;
Fig. 2: the flow chart that is another kind of radio and television audio and video files off-line categorization in the embodiment of the invention 2.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obvious described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
A kind of radio and television audio and video files off-line categorization is provided in the embodiment of the invention 1, as shown in Figure 1, may further comprise the steps:
Step S101 obtains from long-range media resource system and to look audio file.
Step S102 analyzes the said audio file of looking, and extracts the said key frame information of looking audio file, specifically comprises:
Analyze the said audio file code stream of looking, obtain said point, transition of looking audio file, said point, transition is the said camera lens switching point of looking audio file;
Obtain the frame of video corresponding with said point, transition according to said point, transition, said frame of video is a key frame;
Extract said key frame information, key frame information comprise the key frame picture and with said key frame picture time corresponding position.
The key frame information that extracts is saved to this locality, and then breaks away from looking online the catalogue of audio file.
Step S103 according to said key frame information, sets up hierarchy, and said hierarchy comprises program layer, slice layer, scene layer and camera lens layer.
The camera lens layer is the unit of making a catalogue basically, is made up of relevant video pictures, so the key frame information of audio and video files has determined the hierarchical structure of making a catalogue.
Step S104 makes a catalogue separately to said layering according to national broadcasting and TV system catalogue standard, obtains the metadata of making a catalogue.
Step S105 submits said catalogue metadata to said long-range media resource system and issue.
The beneficial effect that the technical scheme of embodiments of the invention obtains is following: through the radio and television audio and video files being adopted the off-line catalogue, not influenced by network speed, save a large amount of network bandwidths, improve catalogue efficient.
Another kind of radio and television audio and video files off-line categorization is provided in the embodiment of the invention 2, as shown in Figure 2, may further comprise the steps:
Step S201 obtains from long-range media resource system and to look audio file.
Step S202 analyzes the said audio file of looking, and extracts the said key frame information of looking audio file, specifically comprises:
Analyze the said audio file code stream of looking, obtain said point, transition of looking audio file, said point, transition is the said camera lens switching point of looking audio file;
Obtain the frame of video corresponding with said point, transition according to said point, transition, said frame of video is a key frame;
Extract said key frame information, key frame information comprise the key frame picture and with said key frame picture time corresponding position.
The key frame information that extracts is saved to this locality, and then breaks away from looking online the catalogue of audio file.
Step S203 is saved in the said key frame information that extracts in the expandable mark language XML meta data file.
To save as the JPEG of joint image expert group picture at the video pictures of the key frame information of line drawing, and, be saved in after the compression in the XML metadata element, make things convenient for off-line browsing key frame picture the JPEG picture compression.
Step S203 according to said key frame information, sets up hierarchy, and said hierarchy comprises program layer, slice layer, scene layer and camera lens layer.
The camera lens layer is the unit of making a catalogue basically, is made up of relevant video pictures, so the key frame information of audio and video files has determined the hierarchical structure of making a catalogue.
Behind the line drawing key frame information, key frame information has been kept among the meta data file XML, can break away from and look audio resource, according to key frame information, sets up hierarchy.
According to independent key frame, can set up the camera lens layer; Interval according to the front and back key frame, can set up camera lens layer, scene layer, slice layer and program layer.
Step S205 makes a catalogue separately to said layering according to national broadcasting and TV system catalogue standard, obtains the metadata of making a catalogue.
When making a catalogue,, secondly be slice layer, scene layer and camera lens layer preferentially to program layer catalogue.
Catalogue standard for national broadcasting and TV system is public general knowledge, does not give unnecessary details at this.
Step S206 submits said catalogue metadata to said long-range media resource system and issue.
Final result behind the catalogue is submitted to media resource system, uploads metadata information behind the catalogue, register, examine and issue, make things convenient for data retrieval to the resources bank backstage.
The beneficial effect that the technical scheme of embodiments of the invention obtains is following: through the radio and television audio and video files being adopted the off-line catalogue, not influenced by network speed, save a large amount of network bandwidths, improve catalogue efficient.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize through hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding; Technical scheme of the present invention can be come out with the embodied of software product, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk; Portable hard drive etc.) in; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (7)
1. a radio and television audio and video files off-line categorization is characterized in that, comprising:
Obtain from long-range media resource system and to look audio file;
Analyze the said audio file of looking, extract the said key frame information of looking audio file;
According to said key frame information, set up hierarchy, said hierarchy comprises program layer, slice layer, scene layer and camera lens layer;
According to national broadcasting and TV system catalogue standard said layering is made a catalogue separately, obtain the metadata of making a catalogue;
Submit said catalogue metadata to said long-range media resource system and issue.
2. the method for claim 1 is characterized in that, said key frame information comprise the key frame picture and with said key frame picture time corresponding position.
3. the method for claim 1 is characterized in that, the said audio file of looking of said analysis extracts the said key frame information of looking audio file, specifically comprises:
Analyze the said audio file code stream of looking, obtain said point, transition of looking audio file, said point, transition is the said camera lens switching point of looking audio file;
Obtain the frame of video corresponding with said point, transition according to said point, transition, said frame of video is a key frame;
Extract said key frame information.
4. the method for claim 1 is characterized in that, said extraction is said look the key frame information of audio file after, also comprise:
The said key frame information that extracts is saved in the expandable mark language XML meta data file.
5. method as claimed in claim 4 is characterized in that, the said said key frame information that will extract is saved in the expandable mark language XML meta data file, specifically comprises:
Key frame picture in the said key frame information is saved as the JPEG picture, and, be saved in the said XML meta data file said JPEG picture compression.
6. the method for claim 1 is characterized in that, according to said key frame information, sets up hierarchy, specifically comprises:
According to independent key frame, set up said camera lens layer;
Interval according to the front and back key frame, set up said camera lens layer, scene layer, slice layer and program layer.
7. the method for claim 1 is characterized in that, said said layering is made a catalogue separately, and cataloged priority is: program layer, slice layer, scene layer and camera lens layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101299562A CN102769730A (en) | 2012-04-27 | 2012-04-27 | Off-line cataloging method for broadcast and television audio-visual materials |
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| CN2012101299562A CN102769730A (en) | 2012-04-27 | 2012-04-27 | Off-line cataloging method for broadcast and television audio-visual materials |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103870598A (en) * | 2014-04-02 | 2014-06-18 | 北京航空航天大学 | Unmanned aerial vehicle surveillance video information extracting and layered cataloguing method |
| CN104598435A (en) * | 2015-01-20 | 2015-05-06 | 青岛农业大学 | Method for solving prepress catalog data localization |
| CN110099251A (en) * | 2019-04-29 | 2019-08-06 | 努比亚技术有限公司 | Processing method, device and the computer readable storage medium of monitor video |
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| CN110099251A (en) * | 2019-04-29 | 2019-08-06 | 努比亚技术有限公司 | Processing method, device and the computer readable storage medium of monitor video |
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Application publication date: 20121107 |