CN102724560B - Video data display packing and device thereof - Google Patents
Video data display packing and device thereof Download PDFInfo
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- CN102724560B CN102724560B CN201210217563.7A CN201210217563A CN102724560B CN 102724560 B CN102724560 B CN 102724560B CN 201210217563 A CN201210217563 A CN 201210217563A CN 102724560 B CN102724560 B CN 102724560B
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- 238000012856 packing Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 6
- 238000013144 data compression Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 description 9
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Abstract
The invention discloses a kind of video data display packing, comprising: generate the timing code corresponding with video data frame to be shown; Video data frame to be shown is split as several video data subframes; Generate the video data subframe containing timing code; The video data subframe that each contains timing code is encoded and sent; The video data subframe that each receiving contains timing code is decoded, and described timing code is carried out data separating with several video data subframes described respectively; According to isolated timing code, each video data subframe split is shown.In addition, a kind of video data display unit is also disclosed.The present invention encloses a timing code in video data frame, and this timing code is encoded as time synchronization information and sent together with video data.Overcoming each image shown by video data subframe is not from this problem of same primitive frame, thus avoids the situation producing picture break-up.
Description
Technical field
The present invention relates to video display technology field, particularly relate to a kind of video data display packing and a kind of video data display unit.
Background technology
At present, the application of ultrahigh resolution video flowing is more and more general.Ultrahigh resolution video flowing is very high to the requirement of codec performance, and when video bandwidth is too high, the performance of single codec unit cannot satisfy the demands.Therefore, a kind of common way ultrahigh resolution video data frame is split into the less video data subframe of several resolution, utilizes multiple codec unit to cooperate and solve this contradiction.But because the information of each video data frame is different, the time used of therefore encoding is also different to the greatest extent.And slow codec unit at that time prolongation of effect should also can slowly be accumulated, and therefore cannot ensure that different coding device carries out synchronous coding to the video data entered simultaneously.Also, namely, in multiple codec unit situation, cannot adopt as in single codec unit situation and beat the mode of timestamp to avoid the problems such as out of order, packet loss, time delay.Because if beat timestamp according to common practices at coding transmitting terminal, because the efficiency of each codec is different, even if each encoder gets video data frame in the same time, also cannot ensure each encoder to same video Frame to beat the temporal information of timestamp the same.This tears causing the image of last display to produce.
Summary of the invention
For solving above-mentioned Problems existing, the invention provides a kind of video data display packing and a kind of video data display unit.
A kind of video data display packing, comprises the following steps:
Generate the timing code corresponding with video data frame to be shown;
Video data frame to be shown is split as several video data subframes;
Described timing code is carried out data merging with several video data subframes described respectively, generates the video data subframe containing timing code;
Video data transmitting terminal is encoded to the video data subframe that each contains timing code, and is sent to video data receiving terminal by video data transmission network;
Described video data receiving terminal is decoded to the video data subframe that each receiving contains timing code, and described timing code is carried out data separating with several video data subframes described respectively;
According to isolated timing code, each video data subframe split is shown.
Compared with general technology, video data display packing of the present invention encloses a timing code in video data frame, and this timing code is encoded as time synchronization information and sent together with video data.The present invention effectively can ensure synchronous between multiple codec unit of video data, and overcoming each image shown by video data subframe is not from this problem of same primitive frame, thus avoids the situation producing picture break-up.
A kind of video data display unit, comprising: timing code generation module, video data frame split module, data combiners block, coding sending module, decoding separation module and display module;
Described timing code generation module is for generating the timing code corresponding with video data frame to be shown;
Described video data frame splits module and is used for video data frame to be shown to be split as several video data subframes;
Described data combiners block is used for described timing code to carry out data merging with several video data subframes described respectively, generates the video data subframe containing timing code;
Described coding sending module is used for encoding to the video data subframe that each contains timing code, and is sent to video data receiving terminal by video data transmission network;
Described decoding separation module is used for decoding to each video data subframe containing timing code that described video data receiving terminal receives, and described timing code is carried out data separating with several video data subframes described respectively;
Described display module is used for according to isolated timing code, shows each video data subframe split.
Compared with general technology, video data display unit of the present invention encloses a timing code in video data frame, and this timing code is encoded as time synchronization information and sent together with video data.The present invention effectively can ensure synchronous between multiple codec unit of video data, and overcoming each image shown by video data subframe is not from this problem of same primitive frame, thus avoids the situation producing picture break-up.
Accompanying drawing explanation
Fig. 1 is the schematic flow diagram of video data display packing of the present invention;
Fig. 2 is the structural representation of video data display unit of the present invention.
Embodiment
For further setting forth the technological means that the present invention takes and the effect obtained, below in conjunction with accompanying drawing and preferred embodiment, to technical scheme of the present invention, carry out clear and complete description.
Referring to Fig. 1, is the schematic flow diagram of video data display packing of the present invention.Video data display packing of the present invention comprises the following steps:
S101 generates the timing code corresponding with video data frame to be shown;
Video server each frame to the video flowing of input all encloses a timing code, and this timing code can be decided to be 8bit.Produce a timing code for every frame video, this timing code dullness increases, and value 0-255, unrolls after exceeding.
Video data frame to be shown is split as several video data subframes by S102;
Preferably, can adopt the mode of decile that video data frame to be shown is split as several video data subframes.
Assuming that the size 3840*2160 of the every frame of original video stream, every frame can be divided into 4 less frames, then the resolution of each less frame is 1920*1080.
Described timing code is carried out data merging with several video data subframes described by S103 respectively, generates the video data subframe containing timing code;
Video server by the reproduction time code 4 parts of above-mentioned generation, can enclose portion to each frame.This 8bit timing code encoded, describe by every with 8x4 pixel size, the resolution of four after joining day code less video data frames becomes 1920*1084.
S104 video data transmitting terminal is encoded to the video data subframe that each contains timing code, and is sent to video data receiving terminal by video data transmission network;
As one of them embodiment, after the video data subframe that video data transmitting terminal can contain timing code to each is encoded, be IP packet by the video data compression after coding, be sent to video data receiving terminal by IP network.
4 less video data subframes are issued encoder and are carried out compressed encoding by video server.Coded data is broken into IP bag and is exported by network.
Video data receiving terminal described in S105 is decoded to the video data subframe that each receiving contains timing code, and described timing code is carried out data separating with several video data subframes described respectively;
Each decoder end can be decoded into yuv video data IP bag, then by separated in synchronization module, yuv data and timing code is separated.Because the position that the image information that timing code is changed is incorporated in true picture information is known, image information can be split into 1920*1080 and 192,0*4 two pieces, according to the transition form of timing code to image information, easily timing code be recovered.
S106, according to isolated timing code, shows each video data subframe split.
The trigger command that each decoder end sends according to video server sends the frame received.After receiving terminal receives the synchronous trigger command of server transmission, in buffer queue, finding the frame identical with the synchronous trigger source that server sends, if there is no the frame identical with trigger source, then nearest frame being exported for showing.
Such as, by splicer unit, the 4 road YUV real time datas received are shown respectively.
For the application such as long range propagation of applicable video data, now more popular way is that live video stream carry out IPization, and the form of being wrapped by IP is in transmission over networks.Because by the impact that network is intrinsic, the IP bag therefore obtained at receiving terminal may occur out of order, packet loss, time delay etc. problem.Show and image there will be card, the phenomenons such as flicker.Conventional way utilizes timestamp to carry out synchronously.But this implementation does not consider the difference between each encoder.What timestamp described is the time of having encoded, because to encoding tasks, each encoder can not accomplish that identical time-triggered protocol completes (reason such as CPU operating frequency and task switch).Therefore for the raw video signal that the same time inputs, the time of output is also differentiated.When this differential cumulative to a certain extent, will, more than the time of a frame, cause decoding end to judge that image is not corresponding according to timestamp, thus occur picture tear and irrecoverable.
Causing the basic reason of picture break-up to be the image that each little frame shows is not from same primitive frame.By the invention solves the problem that original image cannot be corresponding with timestamp after a series of process, therefore, it is possible to ensure that the method for conventional timestamp also can be applicable to the application to original image associated treatment.
As one of them embodiment, for 3840*2160P30, the first every frame of video server all produces a timestamp, then this video flowing is divided into 4 1080P30 streams, then all this timestamp information is enclosed in every frame header of 4 code streams.
Then these four less live video streams are passed to 4 encoders respectively, 4 encoders carry out compressed encoding to each live video stream and then break into IP bag and pass to switch.
Decoder end obtains corresponding IP data from switch, obtains the image of 4 road 1084P30 after decoding, then view data and synchrodata is separated, obtains the timestamp of every frame.
According to the timestamp of every frame, and the benchmark that server sends compares, and selects corresponding frame to issue combination 4 unit.
The 4 road signals received show by combination 4 unit, because combination is stitched together physically, therefore from the original image that display effect is the 3840*2160 size that a pair is complete.
Compared with general technology, video data display packing of the present invention encloses a timing code in video data frame, and this timing code is encoded as time synchronization information and sent together with video data.The present invention effectively can ensure synchronous between multiple codec unit of video data, and overcoming each image shown by video data subframe is not from this problem of same primitive frame, thus avoids the situation producing picture break-up.
Referring to Fig. 2, is the structural representation of video data display unit of the present invention.Video data display unit of the present invention comprises: timing code generation module 201, video data frame split module 202, data combiners block 203, coding sending module 204, decoding separation module 205 and display module 206;
Described timing code generation module 201 is for generating the timing code corresponding with video data frame to be shown;
Video server each frame to the video flowing of input all encloses a timing code, and this timing code can be decided to be 8bit.Produce a timing code for every frame video, this timing code dullness increases, and value 0-255, unrolls after exceeding.
Described video data frame splits module 202 for video data frame to be shown is split as several video data subframes;
As one of them embodiment, described video data frame splits module 202 and can be used for adopting the mode of decile that video data frame to be shown is split as several video data subframes.
Described data combiners block 203, for described timing code is carried out data merging with several video data subframes described respectively, generates the video data subframe containing timing code;
Such as, video server by the reproduction time code 4 parts of above-mentioned generation, can enclose portion to each frame.This 8bit timing code encoded, describe by every with 8x4 pixel size, the resolution of four after joining day code less video data frames becomes 1920*1084.
Described coding sending module 204 is encoded for the video data subframe each being contained to timing code, and is sent to video data receiving terminal by video data transmission network;
As one of them embodiment, after described coding sending module 204 can be used for encoding to the video data subframe that each contains timing code, be IP packet by the video data compression after coding, be sent to video data receiving terminal by IP network.
Described decoding separation module 205 is decoded for each the video data subframe containing timing code received described video data receiving terminal, and described timing code is carried out data separating with several video data subframes described respectively;
Each decoder end can be decoded into yuv video data IP bag, then by separated in synchronization module, yuv data and timing code is separated.Because the position that the image information that timing code is changed is incorporated in true picture information is known, image information can be split into 1920*1080 and 192,0*4 two pieces, according to the transition form of timing code to image information, easily timing code be recovered.
Described display module 206, for according to isolated timing code, shows each video data subframe split.
The trigger command that each decoder end sends according to video server sends the frame received.After receiving terminal receives the synchronous trigger command of server transmission, in buffer queue, finding the frame identical with the synchronous trigger source that server sends, if there is no the frame identical with trigger source, then nearest frame being exported for showing.
Such as, by splicer unit, the 4 road YUV real time datas received are shown respectively.
Compared with general technology, video data display unit of the present invention encloses a timing code in video data frame, and this timing code is encoded as time synchronization information and sent together with video data.The present invention effectively can ensure synchronous between multiple codec unit of video data, and overcoming each image shown by video data subframe is not from this problem of same primitive frame, thus avoids the situation producing picture break-up.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not 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 (6)
1. a video data display packing, is characterized in that, comprises the following steps:
Video server generates the timing code corresponding with video data frame to be shown;
Video data frame to be shown is split as several video data subframes by video server;
Described timing code is carried out data merging with several video data subframes described by video server respectively, generate the video data subframe containing timing code, and the video data subframe each being contained timing code is sent to each encoder respectively;
Each encoder is encoded to the video data subframe that each contains timing code respectively, and is sent to decoder end by video data transmission network;
Described decoder end is decoded to the video data subframe that each receiving contains timing code, and described timing code is carried out data separating with several video data subframes described respectively;
According to isolated timing code, each video data subframe split is shown.
2. video data display packing according to claim 1, is characterized in that, adopts the mode of decile that video data frame to be shown is split as several video data subframes.
3. video data display packing according to claim 1, it is characterized in that, after each encoder is encoded to the video data subframe that each contains timing code, be IP packet by the video data compression after coding, be sent to described decoder end by IP network.
4. a video data display unit, is characterized in that, comprising: timing code generation module, video data frame split module, data combiners block, coding sending module, decoding separation module and display module;
Described timing code generation module is for generating the timing code corresponding with video data frame to be shown;
Described video data frame splits module and is used for video data frame to be shown to be split as several video data subframes;
Described data combiners block is used for described timing code to carry out data merging with several video data subframes described respectively, generate the video data subframe containing timing code, and the video data subframe each being contained timing code is sent to described coding sending module respectively;
Described coding sending module is used for encoding to the video data subframe that each contains timing code, and is sent to video data receiving terminal by video data transmission network;
Described decoding separation module is used for decoding to each video data subframe containing timing code that described video data receiving terminal receives, and described timing code is carried out data separating with several video data subframes described respectively;
Described display module is used for according to isolated timing code, shows each video data subframe split.
5. video data display unit according to claim 4, is characterized in that, described video data frame splits module, for adopting the mode of decile, video data frame to be shown is split as several video data subframes.
6. video data display unit according to claim 4, it is characterized in that, described coding sending module be used for each video data subframe containing timing code is encoded after, by coding after video data compression be IP packet, be sent to video data receiving terminal by IP network.
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| CN103139610B (en) * | 2013-01-23 | 2016-12-28 | 深圳市创凯智能股份有限公司 | The method and apparatus that cluster audio video synchronization is play |
| CN104602008B (en) * | 2015-01-14 | 2018-03-20 | 腾讯科技（深圳）有限公司 | Method for video coding, device and system |
| CN105635752B (en) * | 2016-01-27 | 2019-03-22 | 广州偕作信息科技有限公司 | A kind of multistage synchronous display system and display methods for distributed mosaic screen |
| CN105677283B (en) * | 2016-03-02 | 2018-10-09 | 广东农工商职业技术学院(农业部华南农垦干部培训中心) | A kind of video-signal transmission method and device shown applied to multi-screen splicing |
| CN106060582B (en) * | 2016-05-24 | 2019-06-11 | 广州华多网络科技有限公司 | Video transmission system, method and device |
| CN109963185B (en) * | 2017-12-26 | 2022-09-02 | 杭州海康威视数字技术股份有限公司 | Video data sending method, video display method, device, system and equipment |
| CN110049336B (en) * | 2019-05-22 | 2020-08-25 | 腾讯科技（深圳）有限公司 | Video encoding method and video decoding method |
| CN112788370A (en) * | 2019-11-08 | 2021-05-11 | 京东方科技集团股份有限公司 | Display control method, display control device, display system, electronic device, and storage medium |
| CN111064962B (en) * | 2019-12-31 | 2022-02-15 | 广州市奥威亚电子科技有限公司 | Video transmission system and method |
| CN111638861B (en) * | 2020-06-10 | 2022-03-22 | 威创集团股份有限公司 | Splicing wall signal synchronization method and device |
| CN111683252B (en) * | 2020-06-11 | 2021-11-09 | 浪潮(北京)电子信息产业有限公司 | Server and output system and method of video compression image |
| CN115462086A (en) * | 2020-06-30 | 2022-12-09 | 华为技术有限公司 | Image processing method and device |
| CN114079706B (en) * | 2020-08-18 | 2024-06-14 | 京东方科技集团股份有限公司 | Signal processing device, audio/video display device and processing method |
| CN113068070B (en) * | 2021-03-18 | 2023-03-10 | 京东方科技集团股份有限公司 | Time code display system, method, display device, storage medium, and electronic device |
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| CN101562706A (en) * | 2009-05-22 | 2009-10-21 | 杭州华三通信技术有限公司 | Method for splicing images and equipment thereof |
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