CN101453284A - High resolution video and audio networked editing system and method - Google Patents
High resolution video and audio networked editing system and method Download PDFInfo
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- CN101453284A CN101453284A CNA2007101788002A CN200710178800A CN101453284A CN 101453284 A CN101453284 A CN 101453284A CN A2007101788002 A CNA2007101788002 A CN A2007101788002A CN 200710178800 A CN200710178800 A CN 200710178800A CN 101453284 A CN101453284 A CN 101453284A
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Abstract
The invention relates to a network editing system for high-definition video and audio, which comprises an upload workstation, an editing workstation, and a download workstation, wherein the upload workstation is used for converting a program material into a material with a standard definition format and a material with a high-definition format, storing the material with the standard definition format in a disk array of a high-definition network, and storing the material with the high-definition format in a local disk array; the editing workstation edits the material with the standard definition format stored in the disk array of the high-definition network to finish a story board; and the download workstation is used for corresponding the story board edited and finished by the editing workstation to the material with the high-definition format according to an editing decision table to download the material with the high-definition format from the local disk array. The invention also relates to a network editing method for the high-definition video and audio. Therefore, the network editing uses entirely program materials with low code rate, which reduces the pressure of code rate of the prior high-definition material on network bandwidth.
Description
Technical field
The present invention relates to the broadcasting and TV technical field, relate in particular to a kind of high resolution video and audio networked editing system and method.
Background technology
Because difference from video encoding form material code check under the high SD prerequisite of difference, at present support can only be realized, and support can not be realized high definition material coded format to SD video encoding form at the form of video and audio-editing network system inediting program material.Wherein, the high-quality editing form of SD material generally all can be selected DV50, DV25, MPEG-2 I, MPEG-2 IBP, and the code check of program material also is generally 25Mb/s or 50Mb/s.Generally be positioned 25Mb/S-50Mb/S, the code check of this SD material can satisfy the needs that radio and television users video-audio program editor broadcasts.But the band data amount that provides under present network environment is merely able to satisfy the demand (under a network system environment) of middle-size and small-size video and audio-editing network system.
Along with the development of broadcasting and TV technical field, the demand of high definition program making is also increasing, therefore just needs to make up the network manufacturing system based on the high resolution video and audio editing saving.But in network system technology realization at present, many technological difficulties have been run into.At first since the form code check of high resolution video and audio program material mostly at 100Mb/S-150Mb/S, be 2 times to 4 times of SD form 50Mb/s data volume, need take bigger bandwidth, and under the band data amount that is provided under the present network technology environment, make up real meaning, fully based on high definition material editor's large-scale audio-video network editing system, providing on the network system high performance-price ratio and correlation technique realizes all having bigger difficulty.
Summary of the invention
In order to solve in the prior art the problem that realizes that the high resolution video and audio network editing brought that solves to the pressure of the network bandwidth etc., the invention provides a kind of high resolution video and audio networked editing system and method, realize that it all is the program material of low code check that networking is edited employed, has reduced the pressure of original high definition material code check to the network bandwidth.
To achieve these goals, the invention provides a kind of high resolution video and audio networked editing system, comprising:
Upload work station, be used for converting program material to the material of SD form and the material of high-definition format, and the material of described SD form is stored in the dish battle array of high definition network, and the material of described high-definition format is stored on this domain battle array;
Edit to finish the story version the material of the SD form in the described dish battle array that is stored in the high definition network at the editing station;
Download work station, be used for story version that described editing station editor is finished, carry out according to the editor's decision table and the material of high-definition format corresponding, the material of download high-definition format.
To achieve these goals, the present invention also provides a kind of high resolution video and audio networked edit methods, comprising:
Convert program material to the material of SD form and the material of high-definition format, and the material of described SD form is stored in the dish battle array of high definition network, and the material of described high-definition format is stored on this domain battle array;
Material to the SD form in the described dish battle array that is stored in the high definition network is edited to finish the story version;
The story version that editor is finished, carry out according to the editor's decision table and the material of high-definition format corresponding, the material of download high-definition format.
Therefore, the present invention's networking editor is employed all to be the program material of low code check, has reduced the pressure of original high definition material code check to the network bandwidth.The high resolution video and audio network editing system that adopts this principle to realize can adapt to fully and makes up the application of large scale system cheaply.
Description of drawings
Fig. 1 is the structural representation of a kind of high resolution video and audio networked editing system of the present invention;
Fig. 2 is the schematic flow sheet of a kind of high resolution video and audio networked edit methods of the present invention;
Fig. 3 is the logical topology figure of the high resolution video and audio networked edit methods of the present invention.
Embodiment
Below by drawings and Examples, the technical scheme of the embodiment of the invention is described in further detail.
The present invention be directed to original on the SD network notion of dual code stream propose, it is online that it is applied in the high definition editor, also adopted same mode of operation.Compare with SD, the high definition of high definition program picture means needs to transmit the more data amount in the unit interval, and the bandwidth that takies during transfer of data is bigger, and the shared memory capacity of the program of identical duration space is also bigger.Though memory device and network switching equipment interface rate are greatly improved, available bandwidth is greatly improved, but still can't be competent at the high definition editor fully and make professional demand, therefore adopting dicode rate editor to make net for high definition in present stage is best selection.The dual code stream editor is the same at SD with principle in the high definition, and difference is: the high code check editor of SD generally is the SD signal, and as ASCII stream file ASCIIs such as MPEG-2I 50Mbps, low code check is the MPEG4 file, and code check is hundreds of Kbps; High aloof from politics and material pursuits code check editor's is high-definition signal code check file, and as MPEG-2 100Mbps or DVCPRO HD etc., and the low code check file of high definition then is the code check file of SD signal, as MPEG-2I 50Mbps etc.
Be illustrated in figure 1 as the structural representation of a kind of high resolution video and audio networked editing system of the present invention; In this high resolution video and audio networked editing system, original function of downloading work station and network editing station that goes up is improved, other are with traditional SD video and audio networked editing system.This high resolution video and audio networked editing system comprises:
Upload workstation1, be used for converting program material to the material of SD form and the material of high-definition format, and the material of described SD form is stored in the dish battle array 2 of high definition network, and the material of described high-definition format is stored on this domain battle array 3 of uploading work station; Editing station 4 is high definition editing station, and the material of the SD form in the described dish battle array 2 that is stored in the high definition network is edited to finish the story version;
In this editing system, the networking editor of program relies on the editing station that the SD code check that is stored in the high definition network disk battle array is finished, the networking editor will be carried out to SD code check file in high definition editing station, because the content of high definition file and SD file is a frame frame correspondence, can in the download work after program making is finished file be saved as high definition code check file again.
Be illustrated in figure 2 as the schematic flow sheet of a kind of high resolution video and audio networked edit methods of the present invention; Edit methods of the present invention is edited the material of low code check by the dicode rate edit methods of using among the SD editor, thereby reduces the pressure of editor's high definition material code check to the network bandwidth.The process of this method may further comprise the steps:
Step 20: convert program material to the material of SD form and the material of high-definition format, and the material of described SD form is stored in the dish battle array of high definition network, and the material of described high-definition format is stored on this domain battle array of uploading work station;
Step 21: the material to the SD form in the described dish battle array that is stored in the high definition network is edited to finish the story version;
Step 22: with the story version that editor finishes, it is corresponding to determine that according to editor (EDL) code table and the material of high-definition format carry out, and downloads the material of high-definition format from this domain battle array.The project file of editor's decision table and material is stored together, and the EDL code table is stored in network disk and shares in the array, carries out information interaction with the local EDL code table of high definition work station.The material of described high-definition format is corresponding with the content frame frame of the material of described SD form.
Referring to the logical topology figure of Fig. 3 for the high resolution video and audio networked edit methods of the present invention.At first, upload work station and carry out program when uploading, the file that has generated a SD code check file and two kinds of code checks of a high definition code check file is the material of high-definition format and the material of SD form, and SD code check file is stored in the dish battle array of high definition network then.Promptly as shown in the figure, when step 10, carry out the dual code stream collection when uploading work station and uploading program, low code stream＜50Mb/s wherein, high code stream is 100Mb/s, the low code stream material of gathering generation when step 11 as shown in the figure is as SD 4:3 material, SD 16:9 material, the low code check material of high definition; Gather the high code stream material in step 12 simultaneously, as MPEG2 100Mb/s, DVCPRO100Mb/s; In step 13 SD low code stream material and SD high code stream material are kept in the high definition network disk battle array of network, and the material of high-definition format is stored on this domain battle array of uploading work station (logical topology is not shown), carry out the networking editor of SD material at this moment in step 14, as SD 4:3 material, SD 16:9 material and high definition low code stream material are edited; The networking editor of program of the present invention relies on the editing station that the SD code check is finished, the networking editor will be carried out to SD code check file in high definition editing station, because the content of two kinds of files of high SD is frame frame correspondences, can in the download work after program making is finished file be saved as high definition code check file again shown in step 16.Certainly after having stored corresponding high code stream and low code stream material, also can carry out high definition networking editor (step 15), but do not use in the present invention.
Adopting the high definition editing network of this mode of operation to have every editing station, to take the network bandwidth few, supports editing website quantity significantly to improve, and is suitable for large-scale high definition networking editor's characteristics.
Can satisfy at the network bandwidth under the prerequisite of edit request, can support that with the disk array of high definition editing network the memory bandwidth of 300MB/s is an example, if realize the real-time edition of two-layer high definition code check, the SD file code check that correspondence is carried out the networking editor can adopt 50Mb/s, the therefore maximum online editing that can support 24 editing stations.It is big to adopt this mode of operation to solve high definition network editing occupied bandwidth to a great extent, the limited problem that waits puzzlement high definition networking editor of linkage editing number of devices.
Therefore, the bandwidth constraints that is limited to present network and memory device, and the work station computing capability restriction of networking editor high definition code stream, the present invention is actually the compromise proposal that has adopted a kind of balance bandwidth, CPU disposal ability and editorial efficiency, at future network equipment bandwidth, memory device read-write efficiency and after the CPU computing capability is increased dramatically and compression algorithm optimizes, can make directly that editor, transmission high definition code stream become a reality under network environment.
It should be noted last that, above embodiment is only unrestricted in order to the technical scheme of the explanation embodiment of the invention, although the embodiment of the invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical scheme of the embodiment of the invention, and not break away from the spirit and scope of embodiment of the invention technical scheme.
Claims (3)
1, a kind of high resolution video and audio networked editing system is characterized in that comprising:
Upload work station, be used for converting program material to the material of SD form and the material of high-definition format, and the material of described SD form is stored in the dish battle array of high definition network, and the material of described high-definition format is stored on this domain battle array;
The editing station is connected with the dish battle array of described high definition network, and the material of the SD form in the described dish battle array that is stored in the high definition network is edited to finish the story version;
Download work station, be connected with the editing station, be used for story version that described editing station editor is finished with described this domain battle array, according to edit the decision table and the material of high-definition format carry out corresponding, from the material of this domain battle array download high-definition format.
2, a kind of high resolution video and audio networked edit methods is characterized in that comprising:
Convert program material to the material of SD form and the material of high-definition format, and the material of described SD form is stored in the dish battle array of high definition network, and the material of described high-definition format is stored on this domain battle array;
Material to the SD form in the described dish battle array that is stored in the high definition network is edited to finish the story version;
The story version that editor is finished, carry out according to the editor's decision table and the material of high-definition format corresponding, the material of download high-definition format.
3, high resolution video and audio networked edit methods according to claim 2 is characterized in that comprising: the material of described high-definition format is corresponding with the content frame frame of the material of described SD form.
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| CNA2007101788002A CN101453284A (en) | 2007-12-05 | 2007-12-05 | High resolution video and audio networked editing system and method |
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| CNA2007101788002A CN101453284A (en) | 2007-12-05 | 2007-12-05 | High resolution video and audio networked editing system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102647546A (en) * | 2012-04-26 | 2012-08-22 | 新奥特（北京）视频技术有限公司 | Method for realizing collection and edition of multi-channel signals |
| CN102724407A (en) * | 2011-03-29 | 2012-10-10 | 新奥特（北京）视频技术有限公司 | Platform-level method and device based on AAF and audio workstation interactions |
| CN102752538A (en) * | 2011-11-30 | 2012-10-24 | 新奥特（北京）视频技术有限公司 | Method for generating agent code stream materials |
| CN103902721A (en) * | 2014-04-10 | 2014-07-02 | 中央电视台 | Data frontcourt processing method, data frontcourt processing system, data backcourt publishing method and data backcourt publishing system |
-
2007
- 2007-12-05 CN CNA2007101788002A patent/CN101453284A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724407A (en) * | 2011-03-29 | 2012-10-10 | 新奥特（北京）视频技术有限公司 | Platform-level method and device based on AAF and audio workstation interactions |
| CN102752538A (en) * | 2011-11-30 | 2012-10-24 | 新奥特（北京）视频技术有限公司 | Method for generating agent code stream materials |
| CN102752538B (en) * | 2011-11-30 | 2018-03-16 | 新奥特（北京）视频技术有限公司 | A kind of method of the generation of agent code stream material |
| CN102647546A (en) * | 2012-04-26 | 2012-08-22 | 新奥特（北京）视频技术有限公司 | Method for realizing collection and edition of multi-channel signals |
| CN103902721A (en) * | 2014-04-10 | 2014-07-02 | 中央电视台 | Data frontcourt processing method, data frontcourt processing system, data backcourt publishing method and data backcourt publishing system |
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Application publication date: 20090610 |