CN109120966B - Method, device and system for intelligently judging and identifying code rate of 4K video-on-demand - Google Patents
Method, device and system for intelligently judging and identifying code rate of 4K video-on-demand Download PDFInfo
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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
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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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
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Abstract
The invention discloses a method, a device and a system for intelligently judging and identifying code rate of 4K video-on-demand, wherein the method comprises the following steps: a, acquiring a 4K program source, and marking video information of the 4K program source, wherein the video information comprises video code rate information, and the video code rate comprises a P60 code rate or a P30 code rate; b, if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and meanwhile, reserving the P60 code rate video; c, injecting the P60 code rate video and the P30 code rate video into a front-end video identification system; d, the front-end video recognition system carries out identification recording of P60 and P30 on the video to form a P60 code rate video playing address and a P30 video playing address; and E, when the terminal set-top box requests video playing, returning a corresponding video playing address according to the model of the terminal set-top box.
Description
Technical Field
The invention relates to the technical field of 4K video on demand, in particular to a method, a device and a system for intelligently judging and identifying code rate of 4K video on demand.
Background
According to statistics, the yield of the Chinese 4K television set in 2017 is 3 thousand and 3 million, and accounts for 42 percent of the total amount of the global 4K television sets. In 2020, the number of 4K households worldwide breaks through 3 hundred million 3 million households, and China becomes the largest 4K television consumption market worldwide.
The rapid popularization of 4K televisions promotes the development of 4K video program sources. The current broadcast television network is greatly promoting the popularization of 4K video programs, however, at present, a large number of set top boxes with different models and old and new degrees exist in a user family, and the set top boxes have different hardware chips and have high and low video decoding capability. In the ultra-high-definition on-demand process, a user needs to order programs in a hardware support range, otherwise abnormal conditions such as playing incapability, black screen or blockage can occur.
The existing 4K video on demand technology has the following defects:
1. the program is put on shelf and needs to follow the requirements of the video program parameter specification, for example, the viewing experience effect of the user is influenced by the inconsistency of the program source parameters or the wrong setting of the transcoding parameters.
2. The existing transcoding device is difficult to process the conversion of parameters such as color gamut or HDR, the frame value transcoding effect is general, and the situation of stutter is easy to occur in a motion scene.
In view of this, it is an urgent need in the current market to provide a method, device and system for intelligently judging and identifying a code rate in 4K video-on-demand.
Disclosure of Invention
The invention provides a method for intelligently judging and identifying code rate of 4K video-on-demand aiming at the problems in the prior art, which comprises the following steps:
a, acquiring a 4K program source, and marking video information of the 4K program source, wherein the video information comprises video code rate information, and the video code rate comprises a P60 code rate or a P30 code rate;
b, if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and meanwhile, reserving the P60 code rate video;
c, injecting the P60 code rate video and the P30 code rate video into a front-end video identification system;
d, the front-end video recognition system carries out identification recording of P60 and P30 on the video to form a P60 code rate video playing address and a P30 video playing address;
and E, when the terminal set-top box requests video playing, returning a corresponding video playing address according to the model of the terminal set-top box.
Further, the step B specifically includes: if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and simultaneously reserving the P60 code rate video; if the video code rate is only the P30 code rate, converting the P30 code rate into the P60 code rate, and simultaneously reserving the P30 code rate; if the video bitrate simultaneously comprises P60 bitrate and P30 bitrate, transcoding is not performed;
further, the step C specifically includes: and injecting the P30 code rate video and the P60 code rate video into a front-end video identification system, and after the injection is successful, auditing and shelving the videos.
Further, the step D specifically includes: the front-end video recognition system carries out identification recording of P60 and P30 on the video, forms a P60 rate video playing address and a P30 video playing address, and stores the P60 rate video playing address and the P30 video playing address.
Further, the step E specifically includes: when the terminal set top box requests video playing, the terminal set top box provides parameters of the equipment to the video identification interface, the video identification interface judges according to the obtained equipment parameters after requesting playing to a playing link, and the set top box supporting the P60 format returns a playing address identified by P60; the set-top box supporting the P30 format returns the play address identified by P30.
The invention also provides a device for intelligently judging and identifying the code rate of the 4K video-on-demand, which comprises a transcoding service front end, a front-end video identification system, a video marking memory and a video identification interface, wherein,
the transcoding service front end transcodes a 4K program source, transcodes a video with a video code rate of P60 into a video with a P30 code rate, and simultaneously reserves a video with a P60 code rate, or transcodes a video with a video code rate of P30 into a video with a P60 code rate, and simultaneously reserves a video with a P30 code rate;
the front-end video recognition system identifies the transcoded video to form a P30 code rate playing address and a P60 code rate playing address;
the video mark memory stores the identified playing address;
the video identification interface acquires the equipment parameters of the terminal set-top box, carries out identification judgment according to the equipment parameters, and returns the playing address identified by P60 to the set-top box supporting the P60 format; the set top box supporting the P30 format returns the play address identified by the P30;
the transcoding service front end is connected with the front end video identification system, the front end video identification system is respectively connected with the video tag memory and the video identification interface, and the video tag memory is respectively connected with the front end video identification system and the video identification interface.
The invention also provides a system for intelligently judging and identifying the code rate of 4K video-on-demand, which comprises a 4K program source database, a transcoding service front end, a front end video identification subsystem, a video marking memory, a video identification interface and an intelligent set top box, wherein,
the 4K program source database provides 4K program source data;
the transcoding service front end transcodes a 4K program source, transcodes a video with a video code rate of P60 into a video with a P30 code rate, and simultaneously reserves a video with a P60 code rate, or transcodes a video with a video code rate of P30 into a video with a P60 code rate, and simultaneously reserves a video with a P30 code rate;
the front-end video identification subsystem identifies the transcoded video to form a P30 code rate playing address and a P60 code rate playing address;
the video mark memory stores the identified playing address;
the video identification interface acquires the equipment parameters of the intelligent set top box of the terminal, performs identification and judgment according to the equipment parameters, and returns the play address identified by P60 to the intelligent set top box supporting the P60 format; the intelligent set-top box supporting the P30 format returns the play address identified by the P30;
the intelligent set top box requests the 4K video on demand;
the 4K program source database is connected with the transcoding service front end; the transcoding service front end is respectively connected with a 4K program source database and a front end video identification system, the front end video identification system is respectively connected with a video tag storage and a video identification interface, the video tag storage is respectively connected with the front end video identification system and the video identification interface, and the video identification interface is respectively connected with the front end video identification system, the video tag storage and an intelligent set top box.
Compared with the prior art, the method, the device and the system for intelligently judging and identifying the code rate of the 4K video-on-demand solve the problems that the existing set top box has different decoding capabilities, selects programs with wrong hardware support ranges, and has abnormal conditions of playing incapability, black screen or blockage and the like. The method, the device and the system for intelligently judging and identifying the code rate of the 4K video-on-demand have the following advantages:
1. in the original system architecture design, the old model equipment can not play the content in the P60 format, and the program listing list is different among different equipment. After intelligent identification, the corresponding decoded programs can be automatically played, and the on-demand directory can be uniformly displayed.
2. The programs are selected on the shelf in a wider range, namely the programs of P60 and P30 can be selected.
3. The method can be applied to chip terminals with other decoding capabilities in the future.
Drawings
FIG. 1 is a flow chart of a method for intelligently judging and identifying a code rate for 4K on demand according to the present invention;
fig. 2 is a schematic structural diagram of the apparatus and system for intelligently judging and identifying a code rate for 4K on demand of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, the present invention provides a method for intelligently judging an identification code rate for 4K on demand, wherein the method comprises:
a, acquiring a 4K program source, and marking video information of the 4K program source, wherein the video information comprises video code rate information, and the video code rate comprises a P60 code rate or a P30 code rate;
b, if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and meanwhile, reserving the P60 code rate video;
c, injecting the P60 code rate video and the P30 code rate video into a front-end video identification system;
d, the front-end video recognition system carries out identification recording of P60 and P30 on the video to form a P60 code rate video playing address and a P30 video playing address;
and E, when the terminal set-top box requests video playing, returning a corresponding video playing address according to the model of the terminal set-top box.
Wherein, the step B specifically comprises: if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and simultaneously reserving the P60 code rate video; if the video code rate is only the P30 code rate, converting the P30 code rate into the P60 code rate, and simultaneously reserving the P30 code rate; if the video bitrate simultaneously comprises P60 bitrate and P30 bitrate, transcoding is not performed;
wherein, the step C specifically comprises: and injecting the P30 code rate video and the P60 code rate video into a front-end video identification system, and after the injection is successful, auditing and shelving the videos.
Wherein, the step D specifically comprises: the front-end video recognition system carries out identification recording of P60 and P30 on the video, forms a P60 rate video playing address and a P30 video playing address, and stores the P60 rate video playing address and the P30 video playing address.
Wherein, the step E specifically comprises: when the terminal set top box requests video playing, the terminal set top box provides parameters of the equipment to the video identification interface, the video identification interface judges according to the obtained equipment parameters after requesting playing to a playing link, and the set top box supporting the P60 format returns a playing address identified by P60; the set-top box supporting the P30 format returns the play address identified by P30.
As shown in fig. 2, the present invention further provides a device for intelligently judging and identifying bit rate for 4K on demand, which comprises a transcoding service front end, a front-end video identification system, a video tag memory, and a video identification interface, wherein,
the transcoding service front end transcodes a 4K program source, transcodes a video with a video code rate of P60 into a video with a P30 code rate, and simultaneously reserves a video with a P60 code rate, or transcodes a video with a video code rate of P30 into a video with a P60 code rate, and simultaneously reserves a video with a P30 code rate;
the front-end video recognition system identifies the transcoded video to form a P30 code rate playing address and a P60 code rate playing address;
the video mark memory stores the identified playing address;
the video identification interface acquires the equipment parameters of the terminal set-top box, carries out identification judgment according to the equipment parameters, and returns the playing address identified by P60 to the set-top box supporting the P60 format; the set top box supporting the P30 format returns the play address identified by the P30;
the transcoding service front end is connected with the front end video identification system, the front end video identification system is respectively connected with the video tag memory and the video identification interface, and the video tag memory is respectively connected with the front end video identification system and the video identification interface.
As shown in fig. 2, the present invention further provides a system for intelligently judging and identifying a code rate for 4K on demand, which comprises a 4K program source database, a transcoding service front end, a front end video identification subsystem, a video mark memory, a video identification interface and an intelligent set-top box, wherein,
the 4K program source database provides 4K program source data;
the transcoding service front end transcodes a 4K program source, transcodes a video with a video code rate of P60 into a video with a P30 code rate, and simultaneously reserves a video with a P60 code rate, or transcodes a video with a video code rate of P30 into a video with a P60 code rate, and simultaneously reserves a video with a P30 code rate;
the front-end video identification subsystem identifies the transcoded video to form a P30 code rate playing address and a P60 code rate playing address;
the video mark memory stores the identified playing address;
the video identification interface acquires the equipment parameters of the intelligent set top box of the terminal, performs identification and judgment according to the equipment parameters, and returns the play address identified by P60 to the intelligent set top box supporting the P60 format; the intelligent set-top box supporting the P30 format returns the play address identified by the P30;
the intelligent set top box requests the 4K video on demand;
the 4K program source database is connected with the transcoding service front end; the transcoding service front end is respectively connected with a 4K program source database and a front end video identification system, the front end video identification system is respectively connected with a video tag storage and a video identification interface, the video tag storage is respectively connected with the front end video identification system and the video identification interface, and the video identification interface is respectively connected with the front end video identification system, the video tag storage and an intelligent set top box.
Examples
When the 4K films are put on shelf, the information such as the video frame number is marked, and the information which indicates that the films are P60 or P30 and the information of the put-on-shelf code rate is informed to the front-end system. If the video format is only P60, the video is automatically transcoded into P30 format.
After the two videos are injected successfully, the film can be audited and put on the shelf. And after the video is injected, the front end records the identifications P60 and P30, the identifications need to be agreed with the terminal, and the terminal returns two play addresses when requesting to play, wherein one play link is carried by the P60 identification, and the other play link is carried by the P30 identification.
After two film sources of the 4K film are injected successfully and put on shelf, when the terminal requests playing, the PORTAL returns a playing address suitable for the terminal according to the model of the terminal. The set top box supporting the P60 format returns the play address identified by the P60; the set-top box supporting only the P30 format returns the play address identified by P30.
If only one source in the P30 format is available for the 4K movie, terminals of different models all return the play address of MV 100.
The terminal set-top box needs to provide the parameters of the equipment to the on-demand APK, and the on-demand APK judges according to the equipment parameters after requesting the playing to the playing link according to the obtained equipment parameters.
The set top box supporting the P60 format returns the play address identified by the P60; the set-top box supporting only the P30 format returns the play address identified by P30.
The method has the advantages that the original playing logic is kept without processing the multi-code-rate video which is not 4K, and the current playing logic is kept without processing the single-code-rate video.
The method, the device and the system for intelligently judging and identifying the code rate of the 4K video-on-demand solve the problems that the existing set top box has different decoding capabilities, selects programs with wrong hardware support ranges, and has abnormal conditions of playing incapability, black screen or blockage and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A method for intelligently judging and identifying code rate of 4K video-on-demand is characterized by comprising the following steps:
a, acquiring a 4K program source, and marking video information of the 4K program source, wherein the video information comprises video code rate information, and the video code rate comprises a P60 code rate or a P30 code rate;
b, if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and meanwhile, reserving the P60 code rate video;
c, injecting the P60 code rate video and the P30 code rate video into a front-end video identification system;
d, the front-end video recognition system carries out identification recording of P60 and P30 on the video to form a P60 code rate video playing address and a P30 video playing address;
step E, when the terminal set-top box requests video playing, returning a corresponding video playing address according to the model of the terminal set-top box; the method specifically comprises the following steps:
when the terminal set-top box requests video playing, the terminal set-top box provides self parameters to the video identification interface, the video identification interface judges according to the acquired equipment parameters and the equipment parameters after requesting playing to the playing link, and the set-top box supporting the P60 format returns the playing address identified by the P60; the set-top box supporting the P30 format returns the play address identified by P30.
2. The method for intelligently judging and identifying the bit rate for 4K video-on-demand according to claim 1, wherein the step B specifically comprises: if the video code rate is only the P60 code rate, converting the P60 code rate into the P30 code rate, and simultaneously reserving the P60 code rate video; if the video code rate is only the P30 code rate, converting the P30 code rate into the P60 code rate, and simultaneously reserving the P30 code rate; and if the video rate simultaneously comprises the P60 rate and the P30 rate, the transcoding is not carried out.
3. The method for intelligently judging and identifying the bit rate for 4K video-on-demand according to claim 1, wherein the step C specifically comprises: and injecting the P30 code rate video and the P60 code rate video into a front-end video identification system, and after the injection is successful, auditing and shelving the videos.
4. The method for intelligently judging and identifying the bit rate for 4K video-on-demand according to claim 1, wherein the step D specifically comprises: the front-end video recognition system carries out identification recording of P60 and P30 on the video, forms a P60 rate video playing address and a P30 video playing address, and stores the P60 rate video playing address and the P30 video playing address.
5. A device for intelligently judging and identifying code rate of 4K video-on-demand is characterized by comprising a transcoding service front end, a front-end video identification system, a video mark memory and a video identification interface, wherein,
the transcoding service front end transcodes a 4K program source, transcodes a video with a video code rate of P60 into a video with a P30 code rate, and simultaneously reserves a video with a P60 code rate, or transcodes a video with a video code rate of P30 into a video with a P60 code rate, and simultaneously reserves a video with a P30 code rate;
the front-end video recognition system identifies the transcoded video to form a P30 code rate playing address and a P60 code rate playing address;
the video mark memory stores the identified playing address;
the video identification interface acquires the equipment parameters of the terminal set-top box, carries out identification judgment according to the equipment parameters, and returns the playing address identified by P60 to the set-top box supporting the P60 format; the set top box supporting the P30 format returns the play address identified by the P30;
the transcoding service front end is connected with the front end video identification system, the front end video identification system is respectively connected with the video tag memory and the video identification interface, and the video tag memory is respectively connected with the front end video identification system and the video identification interface.
6. A4K on-demand intelligent judgment and identification code rate system is characterized by comprising a 4K program source database, a transcoding service front end, a front end video identification subsystem, a video marking memory, a video identification interface and an intelligent set top box, wherein,
the 4K program source database provides 4K program source data;
the transcoding service front end transcodes a 4K program source, transcodes a video with a video code rate of P60 into a video with a P30 code rate, and simultaneously reserves a video with a P60 code rate, or transcodes a video with a video code rate of P30 into a video with a P60 code rate, and simultaneously reserves a video with a P30 code rate;
the front-end video identification subsystem identifies the transcoded video to form a P30 code rate playing address and a P60 code rate playing address;
the video mark memory stores the identified playing address;
the video identification interface acquires the equipment parameters of the intelligent set top box of the terminal, performs identification and judgment according to the equipment parameters, and returns the play address identified by P60 to the intelligent set top box supporting the P60 format; the intelligent set-top box supporting the P30 format returns the play address identified by the P30;
the intelligent set top box requests the 4K video on demand;
the 4K program source database is connected with the transcoding service front end; the transcoding service front end is respectively connected with a 4K program source database and a front end video identification system, the front end video identification system is respectively connected with a video tag storage and a video identification interface, the video tag storage is respectively connected with the front end video identification system and the video identification interface, and the video identification interface is respectively connected with the front end video identification system, the video tag storage and an intelligent set top box.
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