CN102802021A - Method and device for editing multi-media data - Google Patents
Method and device for editing multi-media data Download PDFInfo
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- CN102802021A CN102802021A CN2012102799359A CN201210279935A CN102802021A CN 102802021 A CN102802021 A CN 102802021A CN 2012102799359 A CN2012102799359 A CN 2012102799359A CN 201210279935 A CN201210279935 A CN 201210279935A CN 102802021 A CN102802021 A CN 102802021A
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Abstract
The invention discloses a method and device for editing multi-media data. The method comprises the following steps of: reducing multi-media data to be processed into original coded multi-media data; decoding the original coded multi-media data, to obtain a high-code-rate multi-media data stream; decoding and coding the original coded multi-media data, to obtain a low-code-rate multi-media data stream; synchronizing the high-code-rate multi-media data stream and the low-code-rate multi-media data stream; editing the synchronized low-code-rate multi-media data stream to obtain edition information; and editing the synchronized high-code-rate multi-media data stream file according to the edition information. The invention further discloses a device for implementing the method.
Description
Technical field
The present invention relates to the digital television techniques field, relate in particular to a kind of method and device of editing multimedia data.
Background technology
Digital TV in high resolution HDTV (High Definition TV) is the highest a kind of in the digital television standard; Its video must possess 720 line noninterlaced (720p at least; Promptly often say line by line) or 1080 line alternating expression interlacing (1080i; The interlacing of promptly often saying) scanning (DVD:Digital Versatile Disc standard is 480 lines), the screen aspect ratio is 16:9.Audio frequency is output as 5.1 sound channels (Dolby Digital form), and the digitized of simultaneously can compatible signal that receives other low form going forward side by side is handled and reset.
The HDTV program is compared with the traditional tv program and is had higher image quality and sound quality; Also need the huge network bandwidth to carry very high code check simultaneously; This also is not problem in the cable TV of independent transmission; But in the time of need editing again HDTV,, will bring the problem of transmission bottleneck owing to need huge Network Transmission.
After collecting the HDTV media stream of broadcasting signal through various receiving and recording equipments; Needs are carried out the file that high-definition multimedia handles again to be edited; General way is to copy huge HDTV video file on the computer of multi-media edit to, through various editing systems (compiling software or hardware device like non-line), directly the HDTV file is edited; Cut into slices then, transcoding is processed into the video content that needs, and then broadcasts; Another method of relatively compromising is to be transcoded into the HDTV multimedia file of high code check lower and the low code check multimedia file of acceptable; At the enterprising edlin of the media stream of this low code check, the multimedia file that produces SDTV (Standard Definition TV) then broadcasts then.This is a kind ofly to exchange the ageing a kind of compromise method of editor for the loss video quality; Also having a kind of method is directly to include the HDTV TV signal that TV stations such as satellite or cable TV broadcast; Pass through Network Transmission then to the multi-media edit computer; Directly edit, and then be transferred to the HDTV multi-medium data that edits and need to broadcast or broadcast in place that other need including the multimedia of getting off.
In the above-mentioned existing HDTV multimedia secondary treatment system, the shortcoming below existing:
The first, because HDTV has very high code check, when preserving into file and handling again; Need take very big disk space; Owing to need be transferred to the enterprising edlin of editor's computer, the transmission time is very long simultaneously, and this will need the very big bandwidth and the cost of memory space; If carry out the long-distance video editor through the Internet, this can not realize.
Second; Again the editing and processing time long, the editorial staff need download to this locality to the multi-medium data of complete HDTV, just begin then editor; The time of one section video cost of editor will be very long like this; Be unfavorable for increasing work efficiency, the performance requirement to editor's computer is very high simultaneously, and this will increase the cost of whole editing system.
Summary of the invention
The embodiment of the invention provides a kind of method and device of editing multimedia data; Be used for realizing directly the HDTV multi-medium data being edited again; And do not need the memory space and the network bandwidth of consume significant; And can improve actual effect and operating efficiency that the HDTV multimedia file is edited again, reduce equipment cost and personnel cost.
A kind of method of editing multimedia data may further comprise the steps: pending multi-medium data is reduced into the original coding multi-medium data; Said original coding multi-medium data is decoded, obtain high code check multimedia data stream; To the said original coding multi-medium data coding of decoding again, obtain low code check multimedia data stream; Synchronous said high code check multimedia data stream and low code check multimedia data stream; Edit file is edited and obtained to said low code check multimedia data stream after synchronously; According to said edit file the high code check multi-medium data stream file after synchronous is edited.Adopt this technical scheme; Can solve the huge memory space of consumption when directly multi-medium data being edited again and the high processing cost that the high network bandwidth brings; Through low code check multimedia file editor being obtained edit file and more synchronous high code check multimedia file being edited according to edit file; Need not save the network bandwidth and editor's cost at the high code check multimedia file of transmission through network.Improve the ageing and editor's that multi-medium data is edited again operating efficiency simultaneously, reduce equipment cost and personnel cost.
In the technique scheme, preferred, saidly also comprise before will said pending multi-medium data being reduced into original coding multi-medium data step: collection high-definition multimedia data.Present most of high-definition multimedia data all derive from digital TV in high resolution, directly from TV programme, gather the high-definition multimedia data edlin of going forward side by side, and can promote editorial efficiency.
In the technique scheme, preferred, said said original coding multi-medium data is decoded encoded again, also comprises after the step of the low code check multimedia data stream of acquisition: carry out multiplexing to said high code check multimedia data stream and low code check multimedia data stream.Can carry out two kinds of different decode operations simultaneously to original multi-medium data through a communication line through multiplex technique, save Internet resources and bandwidth.
In the technique scheme, preferred, said high-definition multimedia data comprise digital television program, high-definition television programs or standard clarity television program.
In the technique scheme, preferred, said said original coding multi-medium data is decoded, obtain high code check multi-medium data flow step and further comprise, when including said original coding high-definition multimedia data are alignd.Adopt this technical scheme, the error that occurs in the time of can when including high code check multimedia file, eliminating Network Transmission, the multi-medium data of acquisition better quality with encoding and decoding.
Adopt this technical scheme, the error that occurs in the time of can when including high code check multimedia file, eliminating Network Transmission, the multi-medium data of acquisition better quality with encoding and decoding.Also comprise after the step of said said high code check multimedia data stream synchronously and low code check multimedia data stream: will carry out the high code check multimedia data stream of frame synchronization and the file that low code check multimedia data stream is output as predetermined format respectively.Through exporting the edit tool that the predetermined format file can better adapt to the editorial staff, promote treatment effeciency.
The present invention also provides the device that is used to realize this method.
A kind of device of editing multimedia data; It is characterized in that; Comprise recovery module, high code check decoder module, low code check decoder module, synchronization module, low code check editor module and high code check editor module; Wherein said recovery module is used for pending multi-medium data is reduced into the original coding multi-medium data; Said high code check decoder module is used for said original coding multi-medium data is decoded, and obtains high code check multimedia data stream; Said low code check decoder module, coding again after being used for said original coding multi-medium data decoded obtains low code check multimedia data stream; Said synchronization module is used for said high code check multimedia data stream and low code check multimedia data stream synchronously; Said low code check editor module is used for edit file is edited and obtained to said low code check multimedia data stream after synchronously; Said high code check editor module is used for according to said edit file the high code check multi-medium data stream file after synchronous being edited.
In technique scheme, preferred, also comprise acquisition module, be connected with said recovery module, be used to gather the high-definition multimedia data.
In technique scheme, preferred, also comprise Multiplexing module; One side is connected with recovery module; Opposite side is connected with low code check decoder module with high code check decoder module, and said Multiplexing module is used for carrying out multiplexing to said high code check multimedia data stream and low code check multimedia data stream.
In technique scheme, preferred, when said decoder module also is used to include said original coding high-definition multimedia data are alignd.
In technique scheme; Preferably, also comprise output module, be connected with high code check editor module with said low code check editor module; Said output module is used for the high code check multimedia data stream that carries out frame synchronization and low code check multimedia data stream are output as respectively the file of predetermined format.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with embodiments of the invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart of a kind of method of editing multimedia data in the embodiment of the invention;
Fig. 2 is the flow chart of the method for another kind of editing multimedia data in the embodiment of the invention;
Fig. 3 is the structural representation of a kind of device of editing multimedia data in the embodiment of the invention;
Fig. 4 is the structural representation of the device of another kind of editing multimedia data in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for explanation and explains the present invention, and be not used in qualification the present invention.
Core concept of the present invention is; Through producing two height code checks simultaneously but the multimedia file of frame synchronization; Pass back to server then in the enterprising edlin sign of the media stream of low code check, and identification information, the information that on server, identifies with low code check suits the media stream of high code check; So just avoided at the media stream of the high code check of transmission over networks improving editorial efficiency simultaneously to practice thrift cost.
As shown in Figure 1, a kind of method of editing multimedia data may further comprise the steps:
Step 101, pending multi-medium data is reduced into the original coding multi-medium data;
Step 102, said original coding multi-medium data is decoded, obtain high code check multimedia data stream;
Step 103, to the said original coding multi-medium data coding of decoding again, obtain low code check multimedia data stream;
Step 104, synchronous said high code check multimedia data stream and low code check multimedia data stream;
Step 105, edit file is edited and obtained to said low code check multimedia data stream after synchronously;
Step 106, the high code check multi-medium data stream file after is synchronously edited according to said edit file.
As shown in Figure 2, the embodiment of the invention also provides the method for another kind of editing multimedia data, may further comprise the steps:
Said multi-medium data is digital television program DTV (Digital Television), high-definition television programs HDTV (High Definition TV) high definition TV or standard clarity television program SDTV (Standard Definition TV).
Adopted technical scheme of the present invention; Can solve high definition and include the huge network bandwidth and the carrying cost pressure that editor brings; For example: 1.5 hours HD video, press the 20Mbps code check and calculate, will produce: the file of 1.5*3600*20=108000Mbps; In 5 minutes, being sent to this file on editor's computer of editorial staff if desired needs bandwidth to be: the bandwidth of 108000/ (5*60)=360Mbps; This still is high definition data, if 10 HD videos, so just needs the bandwidth of 360*10=3.6Gbps; If adopt the present technique scheme; What be sent to that editor's computer edits is low code check multimedia; If the code check by low code check 0.512Mbps calculates, the file that low code check generates is: the 1.5*3600*0.512=2764.8Mbps size, and the bandwidth that also needs by the computer that is sent to editor in 5 minutes is: 2764.8/ (5*60)=9.216Mbps bandwidth; If 10 videos 100Mbps bandwidth has just been saved the significant cost that the network bandwidth brings so greatly.
Because bandwidth requirement reduces, and the time of transfer files also shortens greatly, the while to the also reduction greatly of performance requirement of editor's computer, but also has been improved editorial staff's editorial efficiency owing to use the media stream of low code check to edit in addition.
As shown in Figure 3, the present invention also provides a kind of device that is used to realize this method.
Said recovery module 301 is used for pending multi-medium data is reduced into the original coding multi-medium data; Said high code check decoder module 302 is used for said original coding multi-medium data is decoded, and obtains high code check multimedia data stream; Said low code check decoder module 303, coding again after being used for said original coding multi-medium data decoded obtains low code check multimedia data stream; Said synchronization module 304 is used for said high code check multimedia data stream and low code check multimedia data stream synchronously; Said low code check editor module 305 is used for edit file is edited and obtained to said low code check multimedia data stream after synchronously; Said high code check editor module 306 is used for according to said edit file the high code check multi-medium data stream file after synchronous being edited.
As shown in Figure 4; The embodiment of the invention also provides the device of another kind of this method of realization, comprises acquisition module 401, recovery module 402, Multiplexing module 403, high code check decoder module 404, low code check decoder module 405, synchronization module 406, low code check editor module 407, high code check editor module 408 and output module 409.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. the method for an editing multimedia data is characterized in that, may further comprise the steps:
Pending multi-medium data is reduced into the original coding multi-medium data;
Said original coding multi-medium data is decoded, obtain high code check multimedia data stream;
To the said original coding multi-medium data coding of decoding again, obtain low code check multimedia data stream;
Synchronous said high code check multimedia data stream and low code check multimedia data stream;
Edit file is edited and obtained to said low code check multimedia data stream after synchronously;
According to said edit file the high code check multi-medium data stream file after synchronous is edited.
2. the method for claim 1 is characterized in that, said said pending multi-medium data is reduced into also comprises before the original coding multi-medium data step: gather the high-definition multimedia data.
3. the method for claim 1 is characterized in that, said said original coding multi-medium data is decoded encoded again, also comprises after the step of the low code check multimedia data stream of acquisition:
Carry out multiplexing to said high code check multimedia data stream and low code check multimedia data stream.
4. method as claimed in claim 2 is characterized in that, said high-definition multimedia data comprise digital television program, high-definition television programs or standard clarity television program.
5. the method for claim 1 is characterized in that, said said original coding multi-medium data is decoded, and obtains high code check multi-medium data flow step and further comprises, when including said original coding high-definition multimedia data is alignd.
6. the method for claim 1 is characterized in that, also comprises after the step of said said high code check multimedia data stream synchronously and low code check multimedia data stream:
The high code check multimedia data stream that carries out frame synchronization and low code check multimedia data stream are output as the file of predetermined format respectively.
7. the device of an editing multimedia data is characterized in that, comprises recovery module, high code check decoder module, low code check decoder module, synchronization module, low code check editor module and high code check editor module, wherein
Said recovery module is used for pending multi-medium data is reduced into the original coding multi-medium data;
Said high code check decoder module is used for said original coding multi-medium data is decoded, and obtains high code check multimedia data stream;
Said low code check decoder module, coding again after being used for said original coding multi-medium data decoded obtains low code check multimedia data stream;
Said synchronization module is used for said high code check multimedia data stream and low code check multimedia data stream synchronously;
Said low code check editor module is used for edit file is edited and obtained to said low code check multimedia data stream after synchronously;
Said high code check editor module is used for according to said edit file the high code check multi-medium data stream file after synchronous being edited.
8. device as claimed in claim 7 is characterized in that, also comprises acquisition module, is connected with said recovery module, is used to gather the high-definition multimedia data.
9. device as claimed in claim 7; It is characterized in that; Also comprise Multiplexing module, a side is connected with recovery module, and opposite side is connected with low code check decoder module with high code check decoder module; Said Multiplexing module is used for carrying out multiplexing to said high code check multimedia data stream and low code check multimedia data stream.
10. device as claimed in claim 7 is characterized in that, when said decoder module also is used to include said original coding high-definition multimedia data is alignd.
11. device as claimed in claim 7; It is characterized in that; Also comprise output module, a side is connected with said synchronization module, and opposite side is connected with said low code check editor module; Said output module is used for the high code check multimedia data stream that carries out frame synchronization and low code check multimedia data stream are output as respectively the file of predetermined format.
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| CN201210279935.9A CN102802021B (en) | 2012-08-08 | 2012-08-08 | A kind of method of editing multimedia data and device |
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| CN201210279935.9A CN102802021B (en) | 2012-08-08 | 2012-08-08 | A kind of method of editing multimedia data and device |
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Cited By (7)
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| CN104052912A (en) * | 2013-03-11 | 2014-09-17 | 腾讯科技（深圳）有限公司 | Video processing method and device |
| CN104703051A (en) * | 2014-01-06 | 2015-06-10 | 杭州海康威视数字技术股份有限公司 | Code stream transmitting method and code stream transmitting device |
| CN104780389A (en) * | 2015-04-21 | 2015-07-15 | 无锡天脉聚源传媒科技有限公司 | Video processing method and device |
| CN104796732A (en) * | 2015-04-21 | 2015-07-22 | 无锡天脉聚源传媒科技有限公司 | Audio and video editing method and device |
| CN106162225A (en) * | 2016-07-28 | 2016-11-23 | 杭州当虹科技有限公司 | A kind of high timeliness editor's live video method based on agency's stream |
| WO2016202887A1 (en) * | 2015-06-15 | 2016-12-22 | Piksel, Inc | Providing low & high quality streams |
| CN108881472A (en) * | 2018-07-09 | 2018-11-23 | 掌阅科技股份有限公司 | The processing method of electronic book documentary, electronic equipment, storage medium |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104052912A (en) * | 2013-03-11 | 2014-09-17 | 腾讯科技（深圳）有限公司 | Video processing method and device |
| CN104052912B (en) * | 2013-03-11 | 2019-03-15 | 腾讯科技（深圳）有限公司 | Handle the method and device of video |
| CN104703051A (en) * | 2014-01-06 | 2015-06-10 | 杭州海康威视数字技术股份有限公司 | Code stream transmitting method and code stream transmitting device |
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| CN104780389B (en) * | 2015-04-21 | 2018-01-05 | 无锡天脉聚源传媒科技有限公司 | A kind of method for processing video frequency and device |
| CN104796732B (en) * | 2015-04-21 | 2018-05-08 | 无锡天脉聚源传媒科技有限公司 | A kind of audio and video edit methods and device |
| CN104796732A (en) * | 2015-04-21 | 2015-07-22 | 无锡天脉聚源传媒科技有限公司 | Audio and video editing method and device |
| CN104780389A (en) * | 2015-04-21 | 2015-07-15 | 无锡天脉聚源传媒科技有限公司 | Video processing method and device |
| WO2016202887A1 (en) * | 2015-06-15 | 2016-12-22 | Piksel, Inc | Providing low & high quality streams |
| US10856029B2 (en) | 2015-06-15 | 2020-12-01 | Piksel, Inc. | Providing low and high quality streams |
| CN106162225A (en) * | 2016-07-28 | 2016-11-23 | 杭州当虹科技有限公司 | A kind of high timeliness editor's live video method based on agency's stream |
| CN108881472A (en) * | 2018-07-09 | 2018-11-23 | 掌阅科技股份有限公司 | The processing method of electronic book documentary, electronic equipment, storage medium |
| CN108881472B (en) * | 2018-07-09 | 2019-03-29 | 掌阅科技股份有限公司 | The processing method of electronic book documentary, electronic equipment, storage medium |
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