CN103686203A - Video transcoding method and device - Google Patents
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Abstract
The invention provides a video transcoding method which comprises the steps that input video stream data are received, and a coding type of the video stream data is acquired; sub data blocks are generated according to video stream data slices, and file information corresponding to the coding type is added to the sub data blocks to obtain video subfiles, wherein the file information comprises head information and tail information; the video subfiles are transcoded in a parallel mode, and the video subfiles obtained after transcoding are synthesized into a video file. In addition, the invention further provides a video transcoding device. The video transcoding method and device improve video transcoding efficiency.
Description
Technical field
The present invention relates to technical field of image processing, particularly relate to a kind of video transcoding method and device.
Background technology
At present for the difference of application, the equal a variety of causes of user's demand playback terminals different and that use need to carry out transcoding to obtain meeting the video file of demand to video source file.Such as fields such as traffic, security protection, monitoring and video display, video quality is had relatively high expectations, need video to there is high-resolution and code check; And mobile device is due to limited storage space, need to be generally the video file that resolution is lower by video source file transcoding, to reduce the shared memory space of video, and be easy to transmission.
And in traditional code-transferring method, can only carry out transcoding by the single-threaded video stream data to input, efficiency is lower, and video source file is larger, needs the longer time of cost.
Summary of the invention
Based on this, be necessary to provide a kind of video transcoding method and device that can improve transcoding efficiency.
A video transcoding method, comprising:
Receive the video stream data of input, obtain the type of coding of described video stream data;
According to described video stream data section, generate sub-block, and obtain video subfile for described sub-block adds the fileinfo corresponding with described type of coding, described fileinfo comprises header information and trailer information;
With parallel mode, described video subfile is carried out to transcoding, and the video subfile obtaining after described transcoding is synthesized to video file.
In an embodiment, the described step that generates sub-block according to described video stream data section comprises therein:
Obtain the image sets of described video stream data, take described image sets as unit section generation sub-block.
Therein in an embodiment, described and the step that the video subfile obtaining after described transcoding synthesizes video file is comprised:
According to the order that generates sub-block, choose the video subfile obtaining after corresponding transcoding, remove the fileinfo of the video subfile obtaining after described transcoding, the video subfile after described removal fileinfo is connected to generating video file.
In an embodiment, the described step that generates sub-block according to described video stream data section also comprises afterwards therein:
The reset decoded time stamp of described sub-block.
In an embodiment, the step of the described video subfile connection generating video file that will obtain after described removal fileinfo also comprises before therein:
Calculate the time migration of the video subfile after described removal fileinfo, according to described time migration, adjust the decoded time stamp of the video subfile after described removal fileinfo.
A video code conversion device, comprising:
Data reception module, for receiving the video stream data of input, obtains the type of coding of described video stream data;
Data slicer module, for generating sub-block according to described video stream data section, and obtains video subfile for described sub-block adds the fileinfo corresponding with described type of coding, and described fileinfo comprises header information and trailer information;
Parallel transcoding module, for carrying out transcoding with parallel mode to described video subfile;
Video synthesis module, for synthesizing video file by the video subfile obtaining after described transcoding.
In an embodiment, described data slicer module, also for obtaining the image sets of described video stream data, be take described image sets as unit section generation sub-block therein.
Therein in an embodiment, described video synthesis module is also for choosing according to the order that generates sub-block the video subfile obtaining after corresponding transcoding, remove the fileinfo of the video subfile obtaining after described transcoding, the video subfile after described removal fileinfo is connected to generating video file.
Therein in an embodiment, described data slicer module is also for the decoded time stamp of the described sub-block of resetting.
In an embodiment, described video synthesis module also, for calculating the time migration of the video subfile after described removal fileinfo, is adjusted the decoded time stamp of the video subfile after described removal fileinfo according to described time migration therein.
Above-mentioned video transcoding method and device, be sliced into a plurality of video subfiles that can independent play-out by the video stream data that needs transcoding of input, and to the plurality of video subfile transcoding that walks abreast, greatly improved the efficiency of video code conversion.
And above-mentioned video transcoding method and device obtain, in the process of video subfile, not changing the type of coding of video subfile in section, also video subfile are not carried out to encoding and decoding processing, the file of video subfile for independently play-overing.Compare with conventional art, the video subfile of section is not privately owned type of coding, is not limited to special-purpose transcoder, and any third-party transcoder all can be carried out transcoding to it, thereby makes the scope of application of above-mentioned video code conversion system and method more extensive.
Accompanying drawing explanation
Fig. 1 is the flow chart of video transcoding method in an embodiment;
Fig. 2 is the walk abreast schematic diagram of transcoding of the distributes calculation resources of an embodiment;
Fig. 3 is the structured flowchart of video code conversion device in an embodiment.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In one embodiment, as shown in Figure 1, the method comprises:
Step S102, receives the video stream data of inputting, and obtains the type of coding of video stream data.
Video stream data is the flow data of the video file of input.The type of coding of video stream data is the Format Type of the video file of input.For example, if the suffix of the video file that need to carry out transcoding of input mp4 by name, the type of coding of the video stream data of this video file is MPEG-4(Moving Pictures Experts Group/Motion Pictures Experts Group, dynamic image expert group).The header information that also can need to carry out by reading the video file of transcoding obtains the type of coding of video stream data.For example, in the header information of the video file of MPEG-4 form, comprise ftyp(File Type Box) piece, in this piece, comprise a major brand(4 character of 1 32), the minor version(4 character of 1 32) and the compatible brands(4 character of 1 32).By reading above-mentioned information, can determine type of coding and the version number of video file.
Step S104, according to video stream data, section generates sub-block, and obtains video subfile for sub-block adds the fileinfo corresponding with type of coding, and fileinfo comprises header information and trailer information.
The video stream data receiving is continuous byte stream, can after receiving one section of video stream data, be about to the continuous byte stream fragment of this this section of receiving as the sub-block generating.After section obtains sub-block, can this sub-block be packaged into video file by add the fileinfo that the type of coding corresponding with video stream data is corresponding (being included in the header information of this sub-block head interpolation and the trailer information of adding at this sub-block afterbody) for this sub-block.For example, if the type of coding of the video stream data receiving is MEPG-4 form, can be header information and external information that the sub-block of the MPEG-4 form that section generates adds MPEG-4 form, being equivalent to generate the video subfile of a MPEG-4 form.
Preferably, can be that sub-block adds fileinfo according to the fileinfo of video file corresponding to aforementioned video stream data.For example, directly add head and the afterbody of sub-block after the information such as the duration in the fileinfo of video file corresponding to aforementioned video stream data, file size can being revised according to sub-block to.
It should be noted that, in the present embodiment, do not need the video stream data to receiving to carry out the separation of Audio and Video, the sub-block that has added fileinfo is an independently video subfile, can in corresponding player, play-over.
Preferably, the step that obtains sub-block according to video stream data section comprises: obtain the image sets of video stream data, the image sets of take obtains sub-block as unit section.
Image sets (GOP, Group of Picture) is the continuous frame in one group of coding and decoding video.For example, mpeg encoded is divided into tri-kinds of I, P, B by picture (being frame), and I is intra-coded frame, and P is forward predicted frame, and B is two-way interpolation frame.Be that I frame is a complete picture, and P frame and B frame recording is the variation with respect to I frame.There is no I frame, P frame and B frame just cannot be decoded.Therefore, in mpeg encoded, the original position that the I frame that image sets is to receive is is initial, and the original position of the I frame that next time receives of take is end, between comprised several P frames and B frame data segment.
The image sets of take is cut into slices as unit, represents that the sub-block that section obtains has comprised the individual image sets of integer.It should be noted that, the length of each image sets can be different.For example, if the video stream data receiving is IPBBIPBBPBIPBBBPBPIPBI ... 4 image sets have at least been comprised, be respectively: IPBB, IPBBPB, IPBBBPBP and IPB, the sub-block that section obtains can be IPBB or IPBBIPBBPB or IPBBIPBBPBIPBBBPBP, can be comprised of an integer image sets for arbitrary continuation.
The image sets of take is cut into slices as unit, can so that in sub-block with video data be complete frame data, make transcoding instrument to carry out transcoding with complete Zheng Wei unit, and can not cause the loss of data.
Step S106, carries out transcoding with parallel mode to video subfile, and the video subfile obtaining after transcoding is synthesized to video file.
For example, as shown in Figure 2, for distributive computing facility, it has a plurality of computational resources that can parallel computation, section can be obtained and by adding video subfile that the sub-block of fileinfo generates, distribute to a plurality of computational resources and concurrently it carried out to transcoding.When distributing video subfile, can consider the load balancing of computational resource, and be video subfile numbering.Computational resource completes returning to the video subfile of transcoding after the transcoding of video subfile.
In the present embodiment, can choose the video subfile obtaining after corresponding transcoding according to the order that generates sub-block, can be according to the aforesaid video subfile sequence that is numbered the transcoding receiving.Remove the fileinfo of the video subfile obtaining after transcoding, the video subfile of removing after fileinfo is connected to generating video file.
In one embodiment, according to the decoded time stamp of the sub-block of also can resetting after the step of video stream data section generation sub-block.
In the present embodiment, by removing the video subfile obtaining after fileinfo, connect the time migration that also can calculate the video subfile after removal fileinfo before the step of generating video file, according to time migration adjustment, remove the decoded time stamp of the video subfile after fileinfo.
For example, if what the sub-block that section obtains was corresponding is that decoded time stamp is the frame of video (image while playing between the 20th second to the 45th second) between the 20th second to the 45th second, thereby can be in adding the process of fileinfo generating video subfile, in header information, decoded time stamp is changed to by 0 second initial, within 25 seconds, finish (as initial decoded time stamp advance offset 20 seconds).That is to say, the video subfile of generation is when playing, also all since 0 second.
And when the video subfile obtaining after transcoding is synthesized to video file, can be according to the length computation side-play amount of the video file to synthesize.For example, if receive the video subfile of numbering after the transcoding that is respectively 1,2,3,4, and the playing duration of video subfile is followed successively by 10 seconds, 3 seconds, 20 seconds and 17 seconds, can first take out the fileinfo of video subfile, then take No. 1 video subfile as initial, in its ending place, connect No. 2 video subfiles, and the side-play amount that calculates the decoded time stamp of No. 2 video subfiles is 10 seconds, decoded time stamp corresponding to frame in No. 2 video subfiles can be delayed to the side-play amount of 10 seconds.Then can continue to connect No. 3 video subfiles at the end of No. 2 video subfiles, and the side-play amount that calculates the decoded time stamp of No. 3 video subfiles is 13 seconds (10+3), decoded time stamp corresponding to frame in No. 3 video subfiles can be delayed to the side-play amount of 13 seconds ... by that analogy, can be linked in sequence the video subfile after numbered transcoding, then for it, add the fileinfo of the type of transcoding, completed the transcoding to the video stream data of input.
As shown in Figure 3, in one embodiment, provide a kind of video code conversion device, comprised data reception module 102, data slicer module 104, parallel transcoding module 106 and video synthesis module 108, wherein:
In the present embodiment, data slicer module 104, also for obtaining the image sets of video stream data, be take image sets as unit section generation sub-block.
In the present embodiment, video synthesis module 108 is also for choosing according to the order that generates sub-block the video subfile obtaining after corresponding transcoding, remove the fileinfo of the video subfile obtaining after transcoding, the video subfile of removing after fileinfo is connected to generating video file.
In the present embodiment, data slicer module 104 is also for the decoded time stamp of the sub-block of resetting.
In the present embodiment, video synthesis module 108 also, for calculating the time migration of removing the video subfile after fileinfo, is removed the decoded time stamp of the video subfile after fileinfo according to time migration adjustment.
Above-mentioned video code conversion system and method, is sliced into a plurality of video subfiles that can independent play-out by the video stream data that needs transcoding of input, and to the plurality of video subfile transcoding that walks abreast, has greatly improved the efficiency of video code conversion.
And above-mentioned video transcoding method and device obtain, in the process of video subfile, not changing the type of coding of video subfile in section, also video subfile are not carried out to encoding and decoding processing, the file of video subfile for independently play-overing.Compare with conventional art, the video subfile of section is not privately owned type of coding, is not limited to special-purpose transcoder, and any third-party transcoder all can be carried out transcoding to it, thereby makes the scope of application of above-mentioned video code conversion system and method more extensive.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a video transcoding method, described method comprises:
Receive the video stream data of input, obtain the type of coding of described video stream data;
According to described video stream data section, generate sub-block, and obtain video subfile for described sub-block adds the fileinfo corresponding with described type of coding, described fileinfo comprises header information and trailer information;
With parallel mode, described video subfile is carried out to transcoding, and the video subfile obtaining after described transcoding is synthesized to video file.
2. video transcoding method according to claim 1, is characterized in that, the described step that generates sub-block according to described video stream data section comprises:
Obtain the image sets of described video stream data, take described image sets as unit section generation sub-block.
3. video transcoding method according to claim 1, is characterized in that, described and the step that the video subfile obtaining after described transcoding synthesizes video file is comprised:
According to the order that generates sub-block, choose the video subfile obtaining after corresponding transcoding, remove the fileinfo of the video subfile obtaining after described transcoding, the video subfile after described removal fileinfo is connected to generating video file.
4. video transcoding method according to claim 3, is characterized in that, the described step that generates sub-block according to described video stream data section also comprises afterwards:
The reset decoded time stamp of described sub-block.
5. video transcoding method according to claim 4, is characterized in that, described also comprising before the step of the video subfile connection generating video file obtaining after described removal fileinfo:
Calculate the time migration of the video subfile after described removal fileinfo, according to described time migration, adjust the decoded time stamp of the video subfile after described removal fileinfo.
6. a video code conversion device, is characterized in that, comprising:
Data reception module, for receiving the video stream data of input, obtains the type of coding of described video stream data;
Data slicer module, for generating sub-block according to described video stream data section, and obtains video subfile for described sub-block adds the fileinfo corresponding with described type of coding, and described fileinfo comprises header information and trailer information;
Parallel transcoding module, for carrying out transcoding with parallel mode to described video subfile;
Video synthesis module, for synthesizing video file by the video subfile obtaining after described transcoding.
7. video code conversion device according to claim 6, is characterized in that, described data slicer module, also for obtaining the image sets of described video stream data, be take described image sets as unit section generation sub-block.
8. video code conversion device according to claim 6, it is characterized in that, described video synthesis module is also for choosing according to the order that generates sub-block the video subfile obtaining after corresponding transcoding, remove the fileinfo of the video subfile obtaining after described transcoding, the video subfile after described removal fileinfo is connected to generating video file.
9. video code conversion device according to claim 8, is characterized in that, described data slicer module is also for the decoded time stamp of the described sub-block of resetting.
10. video code conversion device according to claim 9, it is characterized in that, described video synthesis module also, for calculating the time migration of the video subfile after described removal fileinfo, is adjusted the decoded time stamp of the video subfile after described removal fileinfo according to described time migration.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717517A (en) * | 2015-03-31 | 2015-06-17 | 北京奇艺世纪科技有限公司 | Scheduling method and scheduling device for video transcoding task |
| CN105141973A (en) * | 2015-09-01 | 2015-12-09 | 北京暴风科技股份有限公司 | Multi-segment media file mosaicing method and system |
| CN105338371A (en) * | 2015-10-29 | 2016-02-17 | 南京秦杜明视信息技术有限公司 | Multimedia transcoding scheduling method and apparatus |
| CN106254867A (en) * | 2016-08-08 | 2016-12-21 | 暴风集团股份有限公司 | Based on picture group, video file is carried out the method and system of transcoding |
| CN106487855A (en) * | 2015-08-31 | 2017-03-08 | 阿里巴巴集团控股有限公司 | file uploading method, access method, device and equipment |
| CN108989885A (en) * | 2017-06-05 | 2018-12-11 | 腾讯科技（深圳）有限公司 | Video file trans-coding system, dividing method, code-transferring method and device |
| CN109119100A (en) * | 2017-06-26 | 2019-01-01 | 北京嘀嘀无限科技发展有限公司 | The storage method of audio data or video data, storage system and computer equipment |
| CN109195012A (en) * | 2018-11-07 | 2019-01-11 | 成都索贝数码科技股份有限公司 | A method of MP4 file is combined into based on object storage fragment transcoding/synthesis sudden strain of a muscle |
| CN112312164A (en) * | 2020-10-16 | 2021-02-02 | 安擎(天津)计算机有限公司 | Video transcoding system based on distributed transcoding server |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098483A (en) * | 2007-07-19 | 2008-01-02 | 上海交通大学 | Video cluster transcoding system using image group structure as parallel processing element |
| CN101459502A (en) * | 2007-12-13 | 2009-06-17 | 华为技术有限公司 | Method and apparatus for network clock synchronization |
| CN101917606A (en) * | 2009-12-08 | 2010-12-15 | 新奥特（北京）视频技术有限公司 | Control method and device for transcoding system |
| CN101964894A (en) * | 2010-08-24 | 2011-02-02 | 中国科学院深圳先进技术研究院 | Method and system for parallel trans-coding of video slicing |
| CN102055965A (en) * | 2009-10-28 | 2011-05-11 | 腾讯科技（深圳）有限公司 | Media file transcoding system and method |
| CN103024605A (en) * | 2012-12-31 | 2013-04-03 | 传聚互动(北京)科技有限公司 | Cloud transcoding method and system for video files |
| US20130083859A1 (en) * | 2011-10-04 | 2013-04-04 | General Instrument Corporation | Method to match input and output timestamps in a video encoder and advertisement inserter |
| CN103152613A (en) * | 2011-12-06 | 2013-06-12 | 上海文广互动电视有限公司 | Distributed code conversion task scheduling system and method based on video image group segmentation |
-
2013
- 2013-12-04 CN CN201310680352.1A patent/CN103686203A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098483A (en) * | 2007-07-19 | 2008-01-02 | 上海交通大学 | Video cluster transcoding system using image group structure as parallel processing element |
| CN101459502A (en) * | 2007-12-13 | 2009-06-17 | 华为技术有限公司 | Method and apparatus for network clock synchronization |
| CN102055965A (en) * | 2009-10-28 | 2011-05-11 | 腾讯科技（深圳）有限公司 | Media file transcoding system and method |
| CN101917606A (en) * | 2009-12-08 | 2010-12-15 | 新奥特（北京）视频技术有限公司 | Control method and device for transcoding system |
| CN101964894A (en) * | 2010-08-24 | 2011-02-02 | 中国科学院深圳先进技术研究院 | Method and system for parallel trans-coding of video slicing |
| US20130083859A1 (en) * | 2011-10-04 | 2013-04-04 | General Instrument Corporation | Method to match input and output timestamps in a video encoder and advertisement inserter |
| CN103152613A (en) * | 2011-12-06 | 2013-06-12 | 上海文广互动电视有限公司 | Distributed code conversion task scheduling system and method based on video image group segmentation |
| CN103024605A (en) * | 2012-12-31 | 2013-04-03 | 传聚互动(北京)科技有限公司 | Cloud transcoding method and system for video files |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717517A (en) * | 2015-03-31 | 2015-06-17 | 北京奇艺世纪科技有限公司 | Scheduling method and scheduling device for video transcoding task |
| CN104717517B (en) * | 2015-03-31 | 2018-04-13 | 北京爱奇艺科技有限公司 | A kind of video code conversion method for scheduling task and device |
| CN106487855A (en) * | 2015-08-31 | 2017-03-08 | 阿里巴巴集团控股有限公司 | file uploading method, access method, device and equipment |
| CN106487855B (en) * | 2015-08-31 | 2020-01-03 | 阿里巴巴集团控股有限公司 | File uploading method, file accessing method, file uploading device, file accessing device and equipment |
| CN105141973A (en) * | 2015-09-01 | 2015-12-09 | 北京暴风科技股份有限公司 | Multi-segment media file mosaicing method and system |
| CN105338371B (en) * | 2015-10-29 | 2019-05-17 | 四川奇迹云科技有限公司 | A kind of multi-media transcoding dispatching method and device |
| CN105338371A (en) * | 2015-10-29 | 2016-02-17 | 南京秦杜明视信息技术有限公司 | Multimedia transcoding scheduling method and apparatus |
| CN106254867A (en) * | 2016-08-08 | 2016-12-21 | 暴风集团股份有限公司 | Based on picture group, video file is carried out the method and system of transcoding |
| CN108989885A (en) * | 2017-06-05 | 2018-12-11 | 腾讯科技（深圳）有限公司 | Video file trans-coding system, dividing method, code-transferring method and device |
| US10743008B2 (en) | 2017-06-05 | 2020-08-11 | Tencent Technology (Shenzhen) Company Limited | Video file transcoding system, segmentation method, and transcoding method and apparatus |
| CN108989885B (en) * | 2017-06-05 | 2020-08-28 | 腾讯科技（深圳）有限公司 | Video file transcoding system, segmentation method, transcoding method and device |
| CN109119100A (en) * | 2017-06-26 | 2019-01-01 | 北京嘀嘀无限科技发展有限公司 | The storage method of audio data or video data, storage system and computer equipment |
| CN109195012A (en) * | 2018-11-07 | 2019-01-11 | 成都索贝数码科技股份有限公司 | A method of MP4 file is combined into based on object storage fragment transcoding/synthesis sudden strain of a muscle |
| CN112312164A (en) * | 2020-10-16 | 2021-02-02 | 安擎(天津)计算机有限公司 | Video transcoding system based on distributed transcoding server |
| CN112911410A (en) * | 2021-02-05 | 2021-06-04 | 北京乐学帮网络技术有限公司 | Online video processing method and device |
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