CN101673572B - Method for reediting digital film - Google Patents
Method for reediting digital film Download PDFInfo
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- CN101673572B CN101673572B CN2009100931731A CN200910093173A CN101673572B CN 101673572 B CN101673572 B CN 101673572B CN 2009100931731 A CN2009100931731 A CN 2009100931731A CN 200910093173 A CN200910093173 A CN 200910093173A CN 101673572 B CN101673572 B CN 101673572B
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Abstract
The invention provides a method for reediting a digital film, comprising the steps of analyzing a digital film package to acquire Reel and CPL properties contained in film information structure, creating a container for the Reel and CPL properties, storing the acquired Reel and CPL properties in the container, editing the Reel and CPL properties stored in the container and generating the digital film package according to the edited Reel and CPL properties. The method can reedit by utilizing the digital film which is encoded and packed, thus improving the encoding efficiency for the digital film.
Description
Technical field
The present invention relates to the digital movie technical field, be meant a kind of method of the reediting digital film that packing is finished to coding especially.
Background technology
In digital movie (D-Cinema) projection process, because film projection from different places, so the demand of projection is also different, for example different areas needs the audio frequency of different language, the caption information of different language etc., not even Tong video content (advertising film that for example different area projections is different or other inserted sheets etc.).
Show the schematic diagram of the film information structure of digital movie as Fig. 1, its structure comprises more than one CPL (CPL, Composition Playlists, composite playlist, it is the xml text of a standard, each element of digital movie has been described, how to be played out as image, sound, captions etc., can create in the post production process of film) comprise more than one Reel (tep reel, general reference film storage medium) assets under the assets, each CPL assets, each Reel assets comprises video, audio frequency and captions resource information.Show a film information example of structure as Fig. 2, the CPL assets comprise three Reel assets in this example, and each Reel assets comprises image, sound and captions resource information, and described resource information is pointed to the file of (or link) corresponding body.
Under the technical conditions of digital movie coding packing at present, in order to satisfy the difference projection demand of different regions user to same digital movie, often need be at a plurality of digital movie bags of master production, promptly when the new projection demand in new area, just need carry out new coding packing once more at master slice.
This each all at the encode film editing of packing of master slice, utilize the resource of the digital movie bag that the packing of having encoded finishes, cause the repeatedly repeatability coding of identical content, the operating efficiency that makes coding pack is lower.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of reediting digital film, edits once more to utilize the digital movie bag of having encoded after packing, and improves the efficient of coding.
For achieving the above object, the method for reediting digital film provided by the invention comprises step:
A, resolution digital film bag obtain Reel and CPL assets that the film information structure comprises;
B, create Reel asset bin and CPL asset bin, and Reel assets and the CPL assets of being obtained are saved in respectively in the Reel asset bin of being created and CPL asset bin;
C, Reel in described Reel and the CPL asset bin and CPL assets are edited;
D, generate the digital film bag according to Reel behind the editor and CPL assets.
Wherein, the described Reel assets of steps A comprise: audio frequency and video and/or captions resource information.
Optionally, described audio resource information comprises one of following at least: audio file title, editor's frame per second, frame number, entrance, broadcast frame number, enciphered message; One of below described video resource information comprises at least: video file title, editor's frame per second, frame number, entrance, broadcast frame number, frame per second, enciphered message, resolution; One of below described captions resource information comprises at least: subtitle file title, editor's frame per second, frame number, entrance, broadcast frame number, enciphered message.
Wherein, described step C comprises substep:
C1, judge whether need to create new audio frequency and video and/or subtitle file bag, if, then generate corresponding audio frequency and video and/or subtitle file bag, otherwise execution in step C2;
C2, judge whether to need the Reel assets in the editor Reel asset bin, if, then edit the Reel assets, otherwise execution in step C3;
C3, judge whether to need editor CPL assets, if, then edit the CPL assets, otherwise execution in step D.
Wherein, the Reel assets of editor described in the step C2 comprise: to the Reel assets that the Reel asset bin is comprised add, deletion and retouching operation.
Optionally, the CPL of editor described in step C3 assets take a step forward and comprise: determine that the related Reel assets of CPL assets that will edit are present in the Reel asset bin.
Wherein, the described editor of step C3 CPL assets comprise: to the CPL assets that the CPL asset bin is comprised add, deletion and retouching operation.
Wherein, step C is described to be compiled as when adding, and step C comprises substep:
Audio frequency and video or subtitle file bag that C11, generation need;
C12, generate the Reel assets of the audio frequency and video comprise audio frequency and video that sensing creates or subtitle file bag or captions resource information and be added in the Reel asset bin;
C13, generation comprise the CPL assets of the Reel assets that generated and are added in the CPL asset bin.
Wherein, described audio-video document bag is a MXF file bag, and the step of described generation audio-video document bag comprises:
The audio-source file is synthesized, and packing generates audio frequency MXF file bag again;
The video source file is encoded, and packing generates video MXF file bag again.
As seen from the above, film edit methods in the digital film domain provided by the invention, can realize that the film that packing is finished to coding carries out the secondary editor, by editing existing film, on existing film basis, generate the packet of the new film that is fit to new demand, avoided that the full content in the film is carried out repeated encoding and made, overcome shortcoming, improved the operating efficiency of digital cinema movies coding packing the packing of film identical content repeated encoding.
The method that film provided by the invention is edited once more is applicable to increase, modification or the deletion of advertising film, finishes change, the interpolation requirement to film languages (national language, English etc.), captions (national language, English etc.) of country variant or area fast.
As seen, the present invention has made full use of the film resource of finishing the coding packing and has produced the film that is fit to new demand, no longer the full content to digital movie carries out recompile, the editor who all digital film bags is only carried out partial information gets final product, do not need the full detail of digital film is encoded again, the original audio-video document bag in the good digital film bag of the packing of encoding is changed once more as not needing.And for example only need to revise, when replacing sound or caption information, also only this partly advanced operation and get final product.Compare with background technology, improved the operating efficiency of coding packing.
Description of drawings
Fig. 1 is the film information structural representation;
Fig. 2 implements illustration for the film information structure;
Fig. 3 is the flow chart of film edit methods.
Embodiment
The present invention promptly operates the CPL asset bin and the Reel asset bin (Container) of digital movie bag the editor of digital movie bag.In this example, the CPL asset bin comprises 1 CPL assets (Asset) at least, and the Reel asset bin comprises 1 Reel assets at least, and the content of 1 Reel assets comprises 1 video resource information at least, and its sound intermediate frequency and captions resource information are optional content.
Below, referring to the method flow diagram that the film shown in Fig. 3 is edited once more, the method that the digital film that packing is finished to coding provided by the invention is carried out the secondary editor is elaborated, and specifically may further comprise the steps:
Step 301: resolution digital film bag, obtain the content that the film information structure is comprised.
This step is promptly by resolution digital film bag, obtains the audio frequency and video and the captions resource information that comprise in each CPL assets in the digital movie bag, each Reel assets that each CPL assets comprises and each the Reel assets.
Wherein audio resource information comprises audio file title, editor's frame per second, frame number, entrance, broadcast frame number, the enciphered message of sensing; Video resource information comprises video file title, editor's frame per second, frame number, entrance, broadcast frame number, frame per second, enciphered message, the resolution of sensing; The captions resource information comprises subtitle file title, editor's frame per second, frame number, entrance, broadcast frame number, the enciphered message of sensing.
Step 302: create Reel, CPL asset bin, and each audio frequency and video and the captions resource information that comprises in each Reel assets of being obtained and each Reel assets is saved in the described Reel asset bin; Each CPL assets of being obtained and each Reel assets that each CPL assets comprises are saved in the CPL asset bin.
Wherein, the generation step of sound, video MXF file bag is summarized as follows respectively: the audio-source file is synthesized, then synthetic audio file packing is generated audio frequency MXF file bag; The video source file is encoded, and the video file behind the coding is packed produces video MXF file bag then.Wherein, described audio frequency, video source file can be the contents that will newly add in the digital film bag, as advertising film, and and for example new languages audio-frequency information etc.
Specifically, add the Reel assets and be meant the new Reel assets of adding in the Reel asset bin, the audio frequency and video that the content of new Reel assets comprises and the resource information of captions refer to the new ontology file that will add, as the audio frequency and video MXF file and the subtitle file that point in the step 304 to be created, wherein audio frequency and video MXF file can use already present audio frequency and video MXF file bag (as making in advance), the audio frequency and video MXF file bag that also can use step 304 to create;
Deletion Reel assets are meant deletes the Reel assets from the Reel asset bin;
Revise audio frequency and video and captions resource information that the Reel assets are meant that modification Reel assets comprise.Audio frequency and video MXF file bag title, subtitle file title, editor's frame per second, frame number, entrance, broadcast frame number information and the enciphered message etc. that comprise sensing.
Here need to prove, for the above-mentioned reason of returning step 303 be: owing to must comprise MXF file bag in the Reel assets, when therefore in editor CPL assets process, judging that the Reel assets do not exist, when needing newly to add the Reel assets, whether need add new MXF file bag, to cooperate the generation of new Reel assets if then should inquire.
Specifically, add the CPL assets and be meant the new CPL assets of adding in the CPL asset bin.The content that the CPL assets are comprised is the Reel assets.Need to prove, its Reel assets that comprised of new CPL assets of adding are the Reel asset bin that generates of step 302 or through in the amended asset bin of step 306 Already in, could will add like this comprise these Reel assets new CPL assets in the CPL asset bin;
Deletion CPL assets are meant deletes the CPL assets information from the CPL asset bin;
Revise the Reel assets information that the CPL assets are meant that modification CPL assets are comprised, the Reel assets information that needs are revised replaces with other Reel assets information.The same principle, the new Reel assets that these are used for replacing must exist at the Reel asset bin.
Step 310:, generate new digital movie bag according to upgrading the digital movie bag that back C reconfigures.
As seen from the above, the method above using, the editor who all digital film bags is only carried out partial information gets final product, and when for example adding audio frequency and video MXF file, according to above step is: audio frequency and video or subtitle file bag that need to determine establishment; Generation comprises the Reel assets of the audio frequency and video of audio frequency and video that sensing creates or subtitle file bag or captions resource information and is added in the Reel asset bin of being created; Generation comprises the CPL assets of the Reel assets that generated and adds as in the CPL asset bin of being created.As seen, do not need the full detail of digital film is encoded again, the original audio-video document bag in the good digital film bag of the packing of encoding is changed once more as not needing.And for example only need to revise, when replacing sound or caption information, also only this partly updated coding and get final product, remove the packing of as prior art, the master slice full detail all will being encoded from, thereby improved operating efficiency.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the method for a reediting digital film is characterized in that, comprising:
A, resolution digital film bag obtain tep reel Reel and composite playlist CPL assets that the film information structure comprises;
B, create Reel asset bin and CPL asset bin, and Reel assets and the CPL assets of being obtained are saved in respectively in the Reel asset bin of being created and CPL asset bin;
C, Reel in described Reel and the CPL asset bin and CPL assets are edited;
D, generate the digital film bag according to Reel behind the editor and CPL assets.
2. method according to claim 1 is characterized in that, the described Reel assets of steps A comprise: audio frequency and video and/or captions resource information.
One of 3. method according to claim 2 is characterized in that, below described audio resource information comprises at least: audio file title, editor's frame per second, frame number, entrance, broadcast frame number, enciphered message;
One of below described video resource information comprises at least: video file title, editor's frame per second, frame number, entrance, broadcast frame number, frame per second, enciphered message, resolution;
One of below described captions resource information comprises at least: subtitle file title, editor's frame per second, frame number, entrance, broadcast frame number, enciphered message.
4. method according to claim 2 is characterized in that, described step C comprises substep:
C1, judge whether need to create new audio frequency and video and/or subtitle file bag, if, then generate corresponding audio frequency and video and/or subtitle file bag, otherwise execution in step C2;
C2, judge whether to need the Reel assets in the editor Reel asset bin, if, then edit the Reel assets, otherwise execution in step C3;
C3, judge whether to need editor CPL assets, if, then edit the CPL assets, otherwise execution in step D.
5. method according to claim 4 is characterized in that, the Reel assets of editor described in the step C2 comprise: to the Reel assets that the Reel asset bin is comprised add, deletion and retouching operation.
6. method according to claim 4 is characterized in that, the CPL of editor described in step C3 assets take a step forward and comprise: determine that the related Reel assets of CPL assets that will edit are present in the Reel asset bin.
7. method according to claim 4 is characterized in that, the described editor of step C3 CPL assets comprise: to the CPL assets that the CPL asset bin is comprised add, deletion and retouching operation.
8. method according to claim 2 is characterized in that, step C is described to be compiled as when adding, and step C comprises substep:
Audio frequency and video or subtitle file bag that C11, generation need;
C12, generate the Reel assets of the audio frequency and video comprise audio frequency and video that sensing creates or subtitle file bag or captions resource information and be added in the Reel asset bin;
C13, generation comprise the CPL assets of the Reel assets that generated and are added in the CPL asset bin.
9. according to claim 4 or 8 described methods, it is characterized in that described audio-video document bag is a MXF file bag, the step of described generation audio-video document bag comprises:
The audio-source file is synthesized, and packing generates audio frequency MXF file bag again;
The video source file is encoded, and packing generates video MXF file bag again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100931731A CN101673572B (en) | 2009-09-25 | 2009-09-25 | Method for reediting digital film |
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| CN2009100931731A CN101673572B (en) | 2009-09-25 | 2009-09-25 | Method for reediting digital film |
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| CN101673572A CN101673572A (en) | 2010-03-17 |
| CN101673572B true CN101673572B (en) | 2011-12-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104602125B (en) * | 2013-10-30 | 2018-02-16 | 中国科学院声学研究所 | A kind of packing and encryption method based on MXF audio-video frequency media files |
| CN104093089B (en) * | 2014-07-25 | 2017-04-12 | 中国电影科学技术研究所 | Cinema program live telecasting system and method |
| KR20170108094A (en) * | 2015-01-27 | 2017-09-26 | 바르코 인코포레이티드 | System and method for merging digital cinema packages for a multi-screen environment |
| CN108449651B (en) * | 2018-05-24 | 2021-11-02 | 腾讯科技（深圳）有限公司 | Subtitle adding method, device, equipment and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848955A (en) * | 2005-04-15 | 2006-10-18 | 汤姆森许可贸易公司 | Method and device for recording digital data |
| CN101223602A (en) * | 2005-07-14 | 2008-07-16 | 汤姆森许可贸易公司 | Method and apparatus for providing an auxiliary media in a digital cinema composition playlist |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848955A (en) * | 2005-04-15 | 2006-10-18 | 汤姆森许可贸易公司 | Method and device for recording digital data |
| CN101223602A (en) * | 2005-07-14 | 2008-07-16 | 汤姆森许可贸易公司 | Method and apparatus for providing an auxiliary media in a digital cinema composition playlist |
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