CN104768053A - Format conversion method and system based on streaming decomposition and streaming recombination - Google Patents
Format conversion method and system based on streaming decomposition and streaming recombination Download PDFInfo
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- CN104768053A CN104768053A CN201510178190.0A CN201510178190A CN104768053A CN 104768053 A CN104768053 A CN 104768053A CN 201510178190 A CN201510178190 A CN 201510178190A CN 104768053 A CN104768053 A CN 104768053A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 19
- 230000006798 recombination Effects 0.000 title claims abstract description 6
- 238000005215 recombination Methods 0.000 title claims abstract description 6
- 238000013519 translation Methods 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 8
- 238000005538 encapsulation Methods 0.000 claims description 8
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 claims description 3
- 102000057593 human F8 Human genes 0.000 claims description 3
- 229940047431 recombinate Drugs 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013442 quality metrics Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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]
- H04N21/40—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
- H04N21/4341—Demultiplexing of audio 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
- H04N21/440218—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4
-
- 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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to the field of video format conversion and discloses a format conversion method and system based on streaming decomposition and streaming recombination. The method includes the steps that a source video file is input and decomposed; the source video file is decomposed into video streaming, audio streaming and subtitle streaming; the video streaming, the audio streaming and the subtitle streaming are converted, coded and corrected; all the converted streaming is recombined. According to the technical scheme, due to the fact that the source video file is decomposed, all the streaming is converted and then recombined, video sources of different formats can be in a unified format after being converted, the operation management cost and the storage cost are effectively saved, and the video quality and the user experience are ensured.
Description
Technical field
The present invention relates to video format conversion technical field, particularly relate to a kind of based on Traffic Decomposition and the format conversion method and the system that flow restructuring.
Background technology
Society, because people improve the pursuit of quality of the life, the requirement of media video quality is also progressively improved, the requirement of image quality definition is also improved thereupon, and in the occasion of some a large amount of displaying videos, such as, KTV etc., not only require that the quality of video is high, also require that cost is low, be easy to management.
At present, the occasion source video sequence of a large amount of displaying video is varied, video format is disunity also, causes video quality also to have height to have low, plays the condition needed also different, the appreciation effect of all videos cannot be guaranteed, even cannot guarantee that all videos all can be play, need with many operation costs to guarantee that the video of separate sources different-format can both be play meanwhile, add operation cost, the Consumer's Experience that user is comfortable cannot be brought.
Summary of the invention
Technical problem to be solved by this invention is, a kind of format conversion method based on Traffic Decomposition and stream restructuring and system are provided, with solve cause due to source video file format disunity cannot play, the problems such as appreciation effect or operation cost are too high cannot be guaranteed.
The present invention solves the problems of the technologies described above adopted technical scheme, and provide a kind of format conversion method of recombinating based on Traffic Decomposition and stream, described method comprises step:
S1, reading source video file;
S2, described source video file is resolved into video flowing, audio stream and caption stream;
S3, transform coding is carried out to described video flowing, audio stream and caption stream;
S4, by conversion after video flowing, audio stream and caption stream Reseal.
Preferably, decompose described source video file, edit described video flowing, audio stream and caption stream, and subtitle setting and time unifying are carried out to it.
Preferably, in step S4, correction is carried out and Reseal to the video flowing after described conversion, audio stream and caption stream.
Preferably, in step S4, the video file after restructuring is unified adopts H.265 coding, the encapsulation of MP4 form.
Preferably, described source video file supports multiple format.
On the other hand, the present invention also provides a kind of format conversion system of recombinating based on Traffic Decomposition and stream simultaneously, and described system comprises:
Input module, for reading source video file;
Traffic Decomposition module, for being decomposed into video flowing, audio stream and caption stream by described source video file;
Stream translation module, for carrying out transform coding by described video flowing, audio stream and caption stream;
Stream recombination module, for encapsulating video flowing, audio stream and the caption stream after conversion and recombinate;
Output module, for exporting the video file after restructuring.
Preferably, described system also comprises editor module, for carrying out subtitle setting and time unifying to the video flowing after described conversion, audio stream and caption stream.
Preferably, described system also comprises correction module, corrects the video flowing after described conversion, audio stream and caption stream.
Preferably, described stream translation module comprises:
Video flowing modular converter, for carrying out transform coding to described video flowing;
Audio stream modular converter, for carrying out transform coding to described audio stream;
Caption stream modular converter, for carrying out transform coding to described caption stream.
Preferably, the video file after restructuring is unified adopts H.265 coding, the encapsulation of MP4 form.
Accompanying drawing explanation
Fig. 1 is based on Traffic Decomposition and the flow chart flowing the format conversion method of recombinating in a preferred embodiment of the present invention;
Fig. 2 is based on Traffic Decomposition and the structure chart flowing the format conversion system of recombinating in a preferred embodiment of the present invention.
Embodiment
Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.Specification subsequent descriptions is for implementing better embodiment of the present invention, and right described description is to illustrate for the purpose of rule of the present invention, and is not used to limit scope of the present invention.Protection scope of the present invention is when being as the criterion depending on the claims person of defining.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
As shown in Figure 1, disclosed in this invention based on Traffic Decomposition and the preferred embodiment flowing the format conversion method of recombinating, comprise following steps:
S1, reading source video file;
S2, source video file is resolved into video flowing, audio stream and caption stream;
S3, transform coding is carried out to video flowing, audio stream and caption stream;
S4, by conversion after video flowing, audio stream and caption stream Reseal.
In the present embodiment, the source video file of various different-format is decomposed into video flowing, audio stream and caption stream through Traffic Decomposition, re-assembly after transform coding, unified H.265 coding (efficient video coding), the MP4 form of adopting encapsulates, ensure that the video file format through restructuring is unified, can smooth playing, definition is high, and Consumer's Experience is good.
Further, decompose source video file, editing video stream, audio stream and caption stream, and subtitle setting and time unifying are carried out to it.
Further, in step S4, correction is carried out and Reseal to video flowing, audio stream and the caption stream after conversion.
In the present embodiment, video flowing, audio stream and the caption stream after decomposing is edited and the time of aliging, setting captions, when guaranteeing stream restructuring, video flowing, audio stream and caption stream can one_to_one corresponding; Before restructuring, video flowing, audio stream and the caption stream after conversion is corrected, guarantee that the video file after recombinating can true(-)running, save operation cost.
Further, in step S4, the video file after restructuring is unified adopts H.265 coding, the encapsulation of MP4 form.
Further, source video file supports multiple format.
In the present embodiment, adopt H.265 form to carry out Unified coding to video flowing, audio stream and caption stream, and adopt MP4 form to encapsulate it, improve compression efficiency and the resolution of video file, effectively save carrying cost and improve video quality; After the source video file consolidation form of multiple format, effectively save operation management cost; Meanwhile, MP4 form can reduce distribution and Internet Transmission cost greatly, is applicable to the Consumer's Experience requirement in current mobile Internet epoch.
One of ordinary skill in the art will appreciate that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, this program is when performing, comprise each step of above-described embodiment method, and described storage medium can be: ROM/RAM, magnetic disc, CD, storage card etc.Therefore, relevant technical staff in the field will be understood that corresponding with method of the present invention, the present invention also comprise simultaneously a kind of based on Traffic Decomposition and stream restructuring format conversion system, see Fig. 2, with said method step correspondingly, this system comprises:
Input module, for reading source video file;
Traffic Decomposition module, for being decomposed into video flowing, audio stream and caption stream by source video file;
Stream translation module, for carrying out transform coding by video flowing, audio stream and caption stream;
Stream recombination module, for encapsulating video flowing, audio stream and the caption stream after conversion and recombinate;
Output module, for exporting the video file after restructuring.
In the present embodiment, restructuring is decomposed, changes and encapsulated to system by Traffic Decomposition module, stream translation module and stream recombination module to source video file, complete the format conversion of the source video file to different-format, video file format is transferred to unified H.265 coding, MP4 form, ensure that the active video file of institute can smooth playing after conversion, image quality is clear, and meanwhile, unified MP4 form makes operation cost, carrying cost and Internet Transmission cost all greatly reduce.
Further, system also comprises editor module, for carrying out subtitle setting and time unifying to video flowing, audio stream and the caption stream after conversion.
Further, system also comprises correction module, corrects the video flowing after described conversion, audio stream and caption stream.
Further, stream translation module comprises:
Video flowing modular converter, for carrying out transform coding to video flowing;
Audio stream modular converter, for carrying out transform coding to audio stream;
Caption stream modular converter, for carrying out transform coding to caption stream.
In the present embodiment, respectively transform coding is carried out to each stream decomposed by video flowing modular converter, audio stream modular converter and caption stream modular converter in stream translation module, by editor module and correction module, line time alignment, subtitle setting and correction are flow to each, guarantee that the video file after encapsulating restructuring can smoothly be play fast, improve users'comfort, and improve Video Quality Metric efficiency.
Further, the video file after restructuring is unified adopts H.265 coding, the encapsulation of MP4 form.
In the present embodiment, adopt and H.265 encode, ensure that compression volume is less under much compression quality, under much compression volume, image quality sophistication significantly promotes, and guarantee that the video file image quality after changing is higher, volume is less, and carrying cost is lower; MP4 form encapsulation occupied bandwidth is few, greatly reduces distribution and Internet Transmission cost, and meanwhile, consolidation form, distributes, stores and play and can both smoothness carry out, save operation management cost.
Compared with prior art, in the present invention, by carrying out Traffic Decomposition to source video file, H.265, unified for the source video file of different-format being converted to is encoded by stream translation and stream restructuring, the video file of MP4 form encapsulation, this mode ensure that the rapidly and efficiently conversion of the source video file to different-format, ensure that video can quick and smoothly be play, simultaneously, the video flowing decomposed is guaranteed in transfer process, audio stream and caption stream time unifying, captions are set and make each stream one_to_one corresponding, and it is corrected, guarantee video in the video file after changing, audio frequency and captions are mutually corresponding, can smoothly play fast, consolidation form and coding can ensure that operation management cost, carrying cost and Internet Transmission cost significantly reduce, guarantee simultaneously the video file quality of identical compression degree and definition higher, greatly improve user experience.
Although below invention has been described in conjunction with the preferred embodiments, but it should be appreciated by those skilled in the art, method and system of the present invention is not limited to the embodiment described in embodiment, when not deviating from the spirit and scope of the invention be defined by the appended claims, can various amendment, increase be made to the present invention and replace.
Claims (10)
1., based on the format conversion method that Traffic Decomposition and stream are recombinated, it is characterized in that, described method comprises step:
S1, reading source video file;
S2, described source video file is resolved into video flowing, audio stream and caption stream;
S3, transform coding is carried out to described video flowing, audio stream and caption stream;
S4, by conversion after video flowing, audio stream and caption stream Reseal.
2. the method for claim 1, is characterized in that, decomposes described source video file, edits described video flowing, audio stream and caption stream, and carry out subtitle setting and time unifying to it.
3. the method for claim 1, is characterized in that, in step S4, carries out correction and Reseal to the video flowing after described conversion, audio stream and caption stream.
4. the method for claim 1, is characterized in that, in step S4, the video file after restructuring is unified adopts H.265 coding, the encapsulation of MP4 form.
5. the method for claim 1, is characterized in that, described source video file supports multiple format.
6., based on the format conversion system that Traffic Decomposition and stream are recombinated, it is characterized in that, described system comprises:
Input module, for reading source video file;
Traffic Decomposition module, for being decomposed into video flowing, audio stream and caption stream by described source video file;
Stream translation module, for carrying out transform coding by described video flowing, audio stream and caption stream;
Stream recombination module, for encapsulating video flowing, audio stream and the caption stream after conversion and recombinate;
Output module, for exporting the video file after restructuring.
7. system as claimed in claim 6, it is characterized in that, described system also comprises editor module, for carrying out subtitle setting and time unifying to the video flowing after described conversion, audio stream and caption stream.
8. system as claimed in claim 6, it is characterized in that, described system also comprises correction module, corrects the video flowing after described conversion, audio stream and caption stream.
9. system as claimed in claim 6, it is characterized in that, described stream translation module comprises:
Video flowing modular converter, for carrying out transform coding to described video flowing;
Audio stream modular converter, for carrying out transform coding to described audio stream;
Caption stream modular converter, for carrying out transform coding to described caption stream.
10. system as claimed in claim 6, is characterized in that, the video file after restructuring is unified adopts H.265 coding, the encapsulation of MP4 form.
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| CN201510178190.0A CN104768053A (en) | 2015-04-15 | 2015-04-15 | Format conversion method and system based on streaming decomposition and streaming recombination |
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Cited By (4)
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| CN114598915A (en) * | 2020-12-03 | 2022-06-07 | 南京中兴软件有限责任公司 | Media service method, device, equipment and computer storage medium |
| CN114640865A (en) * | 2022-03-10 | 2022-06-17 | 京东科技信息技术有限公司 | Video file trans-packaging method, device, equipment and storage medium |
| US11368790B2 (en) | 2017-10-04 | 2022-06-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus, method and computer program for encoding, decoding, scene processing and other procedures related to DirAC based spatial audio coding |
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Application publication date: 20150708 Assignee: Beidou satellite digital new media (Beijing) Co., Ltd. Assignor: Feng Shanquan Contract record no.: 2016990000095 Denomination of invention: Format conversion method and system based on streaming decomposition and streaming recombination License type: Common License Record date: 20160314 |
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