CN105338371A - Multimedia transcoding scheduling method and apparatus - Google Patents
Multimedia transcoding scheduling method and apparatus Download PDFInfo
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- CN105338371A CN105338371A CN201510716904.9A CN201510716904A CN105338371A CN 105338371 A CN105338371 A CN 105338371A CN 201510716904 A CN201510716904 A CN 201510716904A CN 105338371 A CN105338371 A CN 105338371A
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 239000012634 fragment Substances 0.000 claims description 44
- 238000005520 cutting process Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 6
- 238000013486 operation strategy Methods 0.000 description 4
- 230000026676 system process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234309—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 or from Quicktime to Realvideo
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- Engineering & Computer Science (AREA)
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a multimedia transcoding scheduling method and apparatus. The multimedia transcoding scheduling method comprises the following steps that: classification processing is performed on original video files according to original multimedia file and target multimedia file attributes; and transcoding processing is performed on the original multimedia files according to classifications. According to the method of the invention, the original multimedia files are classified, and transcoding strategies are determined according to the classifications, and therefore, a transcoding server can be optimized; through optimizing scheduling strategies, fast transcoding can be realized under the premise that the hardware overhead of the transcoding server is not increased. With the multimedia transcoding scheduling method and apparatus of the invention adopted, the smoothness of video playing can be still ensured, and user experience can be improved under the situations that video calling conditions are complicated and video category sources are rich when video playing requests which are transmitted frequently and change frequently are fast responded.
Description
Technical field
The present invention relates to multi-media processing field, espespecially multi-media transcoding dispatching method and device.
Background technology
The Internet and each class of electronic devices universal, makes the extensive degree of video transmission unprecedented.Video content to need in multi-platform, multiple terminals repeatedly, concurrent broadcasting.
Patent documentation CN102802024A is in a kind of code-transferring method realized at server end on November 28th, 2012, wherein said server end comprises host side subsystem and has the transcoding processing subsystem of multiple core cpu, and described method comprises: described host side subsystem is by the data code flow attribute information of data flow after call parameters configuration definition transcoding; Described host side subsystem will treat that transcoded data stream sends described transcoding processing subsystem to; Described transcoding processing subsystem treats transcoded data stream described in receiving, and treats that transcoded data stream is decoded to described, obtains the data flow yuv data stream with brightness and chrominance representation; Described transcoding processing subsystem obtains described data code flow attribute information from described host side subsystem, encodes to described yuv data stream according to described data code flow attribute information, and by the data stream after coding to network.
Patent documentation CN103024445A discloses a kind of multi-media transcoding method and Cloud Server of high in the clouds on April 3rd, 2013, and wherein said method comprises the following steps: Cloud Server decodes to video file the multiple picture frames obtaining video file; Cloud Server judges that each of multiple picture frame is focus chart picture frame or background image frame respectively; If focus chart picture frame, then Cloud Server obtains focus area and the background area of focus chart picture frame, and carries out harmless and lossy coding respectively, to obtain the focus chart picture frame after coding; If background image frame, then lossy coding is carried out to background image frame, to obtain the background image frame after coding; And the background image frame after the focus chart picture frame after coding and coding is synthesized transcoded video file and stated transcoded video file and is sent to mobile terminal.The program can improve the picture quality of transcoded video file while high efficiency transcoding, can provide the video file of different code check according to different terminals, promotes Consumer's Experience.
Current, video service provider, when the video playback demand that response user is rapidly multiple, changeable, has occurred responding not in time, the problem of response quality instability.
Summary of the invention
The invention provides a kind of for promoting transcoding efficiency, improving multi-media transcoding dispatching method and the device of Consumer's Experience.
The object of the invention is to be achieved through the following technical solutions:
A kind of multi-media transcoding dispatching method, comprises step:
According to original multimedia file and destination multimedia file attribute, classification process is carried out to original multimedia file;
By classification, transcoding process is carried out to original multimedia file.
Further, describedly by classification, the step that original multimedia file carries out transcoding process to be comprised:
Original multimedia file is cut at least two fragments;
Each fragment carries out transcoding respectively;
Fragment after transcoding is merged, forms destination multimedia file.
Further, described step original multimedia file being cut at least two fragments comprises:
Judge the code check of original multimedia file, if code check is even, carry out cutting by the principle of the size equalization of each fragment; If code check is uneven, is approximately all principle according to time of transcoding consumption mutually and carries out cutting.
Further, before to original multimedia file cutting, also step is comprised: preliminary treatment is carried out to the original multimedia file of needs section.
Further, described to needing the video file of section to carry out pretreated step and comprise: to convert original multimedia file to default reference format.
Further, the step that described each fragment carries out transcoding respectively comprises: each fragment allocation is carried out transcoding to different transcoding servers.
Further, describedly by classification, the step that original multimedia file carries out transcoding process to be comprised: original multimedia file is directly carried out transcoding.
Further, describedly according to original multimedia file and destination multimedia file attribute, original multimedia file carry out the classifying step of process to be comprised: the size and the file format that judge original multimedia file; Original multimedia file is classified;
Describedly by classification, the step that original multimedia file carries out transcoding process to be comprised:
If the size of original multimedia file is lower than threshold value and file format meets default reference format, direct transcoding;
If the file format of original multimedia file does not meet default reference format, after preliminary treatment is carried out to original multimedia file, carry out transcoding;
If the size of original multimedia file exceedes threshold value, but file format meets default reference format, original multimedia file is cut at least two fragments, and each fragment allocation is carried out transcoding to different transcoding servers; Fragment after transcoding is merged, forms destination multimedia file; Store destination multimedia file;
If the size of original multimedia file exceedes threshold value and file format does not meet default reference format, convert original multimedia file to default reference format, then original multimedia file is cut at least two fragments, each fragment allocation is carried out transcoding to different transcoding servers; Fragment after transcoding is merged, forms destination multimedia file; Store destination multimedia file;
Described step original multimedia file being cut at least two fragments comprises: the code check judging original multimedia file, if code check is even, carries out cutting by the principle of the size equalization of each fragment; If code check is uneven, is approximately all principle according to time of transcoding consumption mutually and carries out cutting.
A kind of multi-media transcoding dispatching device, comprising:
Sorter: for carrying out classification process according to original multimedia file and destination multimedia file attribute to original video files;
Transcoding device: for carrying out transcoding process by classification to original multimedia file.
Further, described transcoding device also comprises:
Preprocessor: for converting original multimedia file to default reference format;
Food slicer: for original multimedia file is cut at least two fragments;
Scheduler: distribute the multimedia file treating transcoding for the service behaviour for multiple stage transcoding server;
Transcoding server: for carrying out transcoding to multimedia file;
Combiner: form destination multimedia file for the fragment after transcoding being merged;
Multimedia storage server: for storing destination multimedia file.
The present invention, by being classified by original multimedia file, decides transcoding strategy by class, so just can optimize transcoding server, by Optimized Operation strategy, under the prerequisite not increasing transcoding server hardware spending, achieves fast transcoding.The present invention can, when the video playback demand that response user is rapidly multiple, changeable, cause video to call situation complexity, when video genre abundance, still can ensure that video playback is smooth, improve Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention one multi-media transcoding dispatching method;
Fig. 2 is the principle schematic of the embodiment of the present invention one multi-media transcoding dispatching device;
Fig. 3 is the schematic flow sheet of the embodiment of the present invention two multi-media transcoding dispatching method;
Fig. 4 is the principle schematic of the embodiment of the present invention three multi-media transcoding dispatching device;
Fig. 5 is the principle schematic of the embodiment of the present invention four video code conversion dispatching device.
Wherein: 10, sorter; 21, food slicer; 22, scheduler; 23, transcoding server; 24; Combiner; 25, preprocessor; 26, multimedia storage server.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the invention will be further described.
Embodiment one
As shown in Figure 1, the multi-media transcoding dispatching method of present embodiment comprises step:
S110, according to original multimedia file and destination multimedia file attribute, classification process is carried out to original multimedia file;
S120, by classification transcoding process is carried out to original multimedia file.
As shown in Figure 2, the multi-media transcoding dispatching device of present embodiment, comprising:
Sorter 10: for carrying out classification process according to original multimedia file and destination multimedia file attribute to original multimedia file;
Transcoding device 20: for carrying out transcoding process by classification to original multimedia file.
The present invention, by being classified by original multimedia file, decides transcoding strategy by class, so just can optimize transcoding server, by Optimized Operation strategy, under the prerequisite not increasing transcoding server hardware spending, achieves fast transcoding.The present invention can, when the video playback demand that response user is rapidly multiple, changeable, cause video to call situation complexity, when video genre abundance, still can ensure that video playback is smooth, improve Consumer's Experience.If no special instructions, multimedia file of the present invention is generally video and/or audio file.
Embodiment two
As shown in Figure 3, present embodiment discloses a kind of multi-media transcoding dispatching method, comprises step:
S310, acquisition original multimedia file;
S320, by classification transcoding process is carried out to original multimedia file.
Wherein, step S320 is roughly divided into following four kinds of processing modes:
If S321 original multimedia file is lower than threshold value and file format meets default reference format, direct transcoding.
If the file format of S322 original multimedia file does not meet default reference format, after preliminary treatment is carried out to original multimedia file, carry out transcoding.
If the size of S323 original multimedia file exceedes threshold value, but file format meets default reference format, original multimedia file is cut at least two fragments, and each fragment allocation is carried out transcoding to different transcoding servers; Fragment after transcoding is merged, forms destination multimedia file; Store destination multimedia file.
If the size of S324 original multimedia file exceedes threshold value and file format does not meet default reference format; Convert original multimedia file to default reference format; Then original multimedia file is cut at least two fragments, each fragment allocation is carried out transcoding to different transcoding servers; Fragment after transcoding is merged, forms destination multimedia file; Store destination multimedia file.
Described step original multimedia file being cut at least two fragments comprises: the code check judging original multimedia file, if code check is even, carries out cutting by the principle of the size equalization of each fragment; If code check is uneven, is approximately all principle according to time of transcoding consumption mutually and carries out cutting.
Present embodiment is in view of system source video sequence complexity to be processed, form and the situation of video are various, likely burden is brought to system process video content, even some special format may cause follow-up processing module to process, therefore, for such video content, video format conversion is carried out by preprocessor, be converted into suitable reference format, through such conversion, even directly can reduce video capacity sometimes, reduction system processing load, even if capacity changes little, also the problem that video content possibly cannot be identified at System Back-end can be solved.The present invention, by being classified by original multimedia file, decides transcoding strategy by class, and by the load balance of multiple stage transcoding server, so just transcoding server can be optimized, by Optimized Operation strategy, under the prerequisite not increasing transcoding server hardware spending, achieve fast transcoding.The present invention can, when the video playback demand that response user is rapidly multiple, changeable, cause video to call situation complexity, when video genre abundance, still can ensure that video playback is smooth, improve Consumer's Experience.
Embodiment three
As shown in Figure 4, disclosed in present embodiment, multi-media transcoding dispatching device comprises: sorter, the transcoding device be coupled with sorter.
Described transcoding device also comprises the food slicer be coupled with grader, the scheduler be coupled with grader and food slicer respectively, the transcoding server be coupled with scheduler, the combiner be coupled with transcoding server, to be coupled with transcoding server and combiner multimedia storage server respectively; Also preprocessor is provided with between described grader and food slicer;
Sorter carries out classification process according to original multimedia file and destination multimedia file attribute to original video files; Described food slicer is used for original multimedia file to be cut at least two fragments; Described scheduler is used for for the service behaviour of multiple stage transcoding server distributes the multimedia file treating transcoding; Described preprocessor is used for converting original multimedia file to default reference format; Described transcoding server is used for carrying out transcoding to multimedia file; Described combiner is used for the fragment after transcoding to merge to form destination multimedia file; Described multimedia storage server is for storing destination multimedia file.
Present embodiment is in view of system source video sequence complexity to be processed, form and the situation of video are various, likely burden is brought to system process video content, even some special format may cause follow-up processing module to process, therefore, for such video content, video format conversion is carried out by preprocessor, be converted into suitable reference format, through such conversion, even directly can reduce video capacity sometimes, reduction system processing load, even if capacity changes little, also the problem that video content possibly cannot be identified at System Back-end can be solved.Scheduler can arrange different transcoding servers to carry out parallel processing to the fragment of section respectively according to the situation that meets flexibly, can utilize hardware resource to greatest extent, turn improve transcoding efficiency.
Embodiment four
Present embodiment take original multimedia file as video file for example is illustrated.
As shown in Figure 5.Multi-media transcoding dispatching device disclosed in present embodiment comprises following 7 kinds of devices:
Grader.Grader is responsible for classifying to video-processing mode according to original audio-video document attribute, target sound video file attributes.Usually, 3 kinds are had: directly transcoding; Transcoding is sent after burst; After preliminary treatment, burst send transcoding again.
Preprocessor.Preprocessor is responsible for needing the video file of section to carry out preliminary treatment.Pretreated file can turn section.Object: in view of system source video sequence to be processed is complicated, form and the situation of video are various, likely burden is brought to system process video content, even some special format may cause follow-up processing module to process, therefore, for such video content, video format conversion is carried out by preprocessor, be converted into suitable reference format, through such conversion, even directly can reduce video capacity sometimes, reduction system processing load, even if capacity changes little, also the problem that video content possibly cannot be identified at System Back-end can be solved.
Food slicer.Food slicer is responsible for video file to be divided into multiple fragment according to rule.
If code check is even, cutting can be divided equally to video
If code check is uneven, as video content be motion or static time code check different, when cutting, be approximately all principle according to the time of transcoding consumption mutually and carry out cutting.
Scheduler.The service behaviour that scheduler is responsible for multiple stage transcoding server distributes the video file treating transcoding.
Transcoding server.There is multiple stage transcoding server.Transcoding server completes video file format conversion, comprises decoding and coding 2 processes.
The service behaviour of multiple stage transcoding server can be variant, then the load balance of multiple stage transcoding server is by such as needing section, then food slicer and scheduler complete jointly, if do not needed section, then complete primarily of scheduler
Combiner.Belong to a video file multiple bursts after transcoding, be assembled into one section of complete video by combiner.
Video storage server.Video storage server is responsible for the video file storing various form.
The code-transferring method job step of present embodiment Optimized Operation strategy is as follows:
The first step, according to original audio-video document attribute, target sound video file attributes, grader determination transcoding mode.
Usually, there are 3 kinds of transcoding strategy: a, as less in multiple video file content, directly send scheduler.B, as many in multiple video file content, send scheduler after sending slicing device to cut into slices.C, as video format is lack of standardization, is not suitable for direct slicing, then enter after original video files is carried out preliminary treatment by preprocessor and send slicing device and scheduler.
Second step, food slicer and scheduler are cut into slices according to the operating efficiency of each transcoding server, then give corresponding transcoding server process by the video distribution after section;
3rd step, after transcoding server transcoding, exports to video memory after having multiple files of section mark to be combined as a complete file in combiner; The file of mark of not cutting into slices directly exports to video server.
The present invention, when the video playback demand that response user is rapidly multiple, changeable, causes video to call situation complexity, when video genre abundance, still can ensure that video playback is smooth, improve Consumer's Experience.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a multi-media transcoding dispatching method, is characterized in that, comprises step:
According to original multimedia file and destination multimedia file attribute, classification process is carried out to original multimedia file;
By classification, transcoding process is carried out to original multimedia file.
2. multi-media transcoding dispatching method according to claim 1, is characterized in that, describedly comprises the step that original multimedia file carries out transcoding process by classification:
Original multimedia file is cut at least two fragments;
Respectively transcoding is carried out to each fragment;
Fragment after transcoding is merged, forms destination multimedia file.
3. multi-media transcoding dispatching method according to claim 2, is characterized in that, described step original multimedia file being cut at least two fragments comprises:
Judge the code check of original multimedia file, if code check is even, carry out cutting by the principle of the size equalization of each fragment; If code check is uneven, is approximately all principle according to time of transcoding consumption mutually and carries out cutting.
4. multi-media transcoding dispatching method according to claim 2, is characterized in that, before to original multimedia file cutting, also comprise step: carry out preliminary treatment to the original multimedia file of needs section.
5. multi-media transcoding dispatching method according to claim 4, is characterized in that, the described original multimedia file to needs section carries out pretreated step and comprises: convert original multimedia file to default reference format.
6. multi-media transcoding dispatching method according to claim 2, is characterized in that, describedly comprises the step that each fragment carries out transcoding respectively: each fragment allocation is carried out transcoding to different transcoding servers.
7. multi-media transcoding dispatching method according to claim 1, is characterized in that, describedly comprises the step that original multimedia file carries out transcoding process by classification: original multimedia file is directly carried out transcoding.
8. multi-media transcoding dispatching method according to claim 1, it is characterized in that, describedly according to original multimedia file and destination multimedia file attribute, original video files carry out the classifying step of process to be comprised: the size and the file format that judge original multimedia file; Original multimedia file is classified;
Describedly by classification, the step that original multimedia file carries out transcoding process to be comprised:
If the size of original multimedia file is lower than threshold value and file format meets default reference format, direct transcoding;
If the file format of original multimedia file does not meet default reference format, after preliminary treatment is carried out to original multimedia file, carry out transcoding;
If the size of original multimedia file exceedes threshold value, but file format meets default reference format, original multimedia file is cut at least two fragments, and each fragment allocation is carried out transcoding to different transcoding servers; Fragment after transcoding is merged, forms destination multimedia file; Store destination multimedia file;
If the size of original multimedia file exceedes threshold value and file format does not meet default reference format, convert original multimedia file to default reference format, then original multimedia file is cut at least two fragments, each fragment allocation is carried out transcoding to different transcoding servers; Fragment after transcoding is merged, forms destination multimedia file; Store destination multimedia file.
9. a multi-media transcoding dispatching device, is characterized in that, comprising:
Sorter: for carrying out classification process according to original multimedia file and destination multimedia file attribute to original multimedia file;
Transcoding device: for carrying out transcoding process by classification to original multimedia file.
10. multi-media transcoding dispatching device according to claim 9, is characterized in that, described transcoding device also comprises:
Preprocessor: for converting original multimedia file to default reference format;
Food slicer: for original multimedia file is cut at least two fragments;
Scheduler: distribute the multimedia file treating transcoding for the service behaviour for multiple stage transcoding server;
Transcoding server: for carrying out transcoding to multimedia file;
Combiner: form destination multimedia file for the fragment after transcoding being merged;
Multimedia storage server: for storing destination multimedia file.
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| CN109640115A (en) * | 2018-12-17 | 2019-04-16 | 视联动力信息技术股份有限公司 | A kind of files in stream media code-transferring method and device |
| CN110381356A (en) * | 2019-07-19 | 2019-10-25 | 北京字节跳动网络技术有限公司 | Audio-video generation method, device, electronic equipment and readable medium |
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