CN102131097A - Method and system for transmitting 3D streaming media - Google Patents
Method and system for transmitting 3D streaming media Download PDFInfo
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- CN102131097A CN102131097A CN2011100676237A CN201110067623A CN102131097A CN 102131097 A CN102131097 A CN 102131097A CN 2011100676237 A CN2011100676237 A CN 2011100676237A CN 201110067623 A CN201110067623 A CN 201110067623A CN 102131097 A CN102131097 A CN 102131097A
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Abstract
The invention relates to a method for transmitting 3D streaming media, which comprises the following steps of: receiving a plurality of paths of original code streams, and segmenting the plurality of paths of original code streams; sorting data segments of various paths of the original code streams, packaging the data segments into a single path of video code stream, and carrying a serial number of each data block in a network transmission layer of the single path of video code stream; transmitting the packaged single path of video code stream; and after the single path of video code stream is received, re-assembling the plurality of paths of original code streams according to the serial number of each data block. The invention relates to a system for transmitting the 3D streaming media. Starting from a demand of a network for transmitting the 3D video code stream, the plurality of paths of code streams are segmented and packaged in the single path of video code stream; after a receiving party receives the transmitted video code stream, the single path of video code stream can be re-assembled into a plurality paths of code streams according to a packaging sequence and rule, so that presentation in a plurality of modes can be achieved when the transmission of the 3D video code stream is realized.
Description
Technical field
The present invention relates to the mobile flow medium application technology, relate in particular to a kind of 3D flow-medium transmission method and system.
Background technology
Along with popularizing gradually of 3G network, data service especially mobile flow medium service begins develop rapidly, and the 3D Streaming Media is a branch field that has just grown up, and does not form unified technical standard as yet.At present more existing manufacturers are Nvidia, Microsoft for example, and MetaStream, three magnitudes provide some solutions, but these solutions are still immature, and also incompatible each other.
With Nvidia is example, and the 2D+Delta form that it adopts utilizes the redundancy between the three-dimensional view of the left and right sides, complicated technology realization, and need transform largely encoder.And the Optimus 3D of LG mainly is the technology that presents, its transmission means mainly is the single channel code stream is utilized FLV file format encapsulation and to transmit by HTTP, this mode adopts is the code stream form of look branch (red indigo plant, red form such as green), it has just carried out the merging of two-path video when making, therefore do not support the rendering method of time-division, frequency division mode.
Summary of the invention
The objective of the invention is to propose a kind of 3D flow-medium transmission method and system, can support the various presentation modes of 3D Streaming Media, and the implementation of 3D Streaming Media transmission is simple, scrap build is little.
For achieving the above object, the invention provides a kind of 3D flow-medium transmission method, comprising:
Receive the multichannel source code flow, and respectively described multichannel source code flow is carried out cutting;
The data segment that each road source code flow is syncopated as sorts, and is encapsulated in the single channel video code flow, carries the sequence number of each data block in the transport network layer of described single channel video code flow;
Transmit packaged single channel video code flow;
After receiving described single channel video code flow, re-assembly out the multichannel source code flow according to the sequence number of described each data block.
For achieving the above object, the invention provides a kind of 3D stream media transmission system, comprising:
Code stream cutting unit is used for respectively the multichannel source code flow that receives being carried out cutting;
The data segment sequencing unit is used for the data segment that each road source code flow is syncopated as is sorted;
Single channel code stream encapsulation unit is used for the data block after the ordering is encapsulated into the single channel video code flow, carries the sequence number of each data block in the transport network layer of described single channel video code flow;
Single channel code stream transmission unit is used to transmit packaged single channel video code flow;
The code stream recomposition unit is used for after receiving described single channel video code flow, re-assemblies out the multichannel source code flow according to the sequence number of described each data block.
Based on technique scheme, the present invention starts with from the demand of Network Transmission 3D video code flow, encapsulate with the cutting of multichannel code stream and in the single channel video code flow, after the recipient receives the video code flow that transmits, can be according to encapsulation order and regular with single channel video code flow reorganization multichannel code stream, thereby in the transmission that realizes the 3D video code flow, also can satisfy presenting of multiple mode.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of an embodiment of 3D flow-medium transmission method of the present invention.
Fig. 2 is a kind of structural representation of realizing scene of Fig. 1 embodiment.
Fig. 3 is the schematic diagram of the code stream cutting encapsulation of another embodiment of 3D flow-medium transmission method of the present invention.
Fig. 4 is the structural representation of an embodiment of 3D stream media transmission system of the present invention.
Fig. 5 is the structural representation of another embodiment of 3D stream media transmission system of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 1, be the schematic flow sheet of an embodiment of 3D flow-medium transmission method of the present invention.The 3D Streaming Media transfer process of present embodiment comprises:
In the present embodiment, the transmit leg and the equal as offered encapsulation/decapsulation of the recipient rule that need the 3D Streaming Media, so that the recipient can re-assembly out the multichannel source code flow accurately, also can adopt to sort packing rule and bit stream data to issue recipient's advice method in the lump.
Present embodiment is than the encoding and decoding of 3D Streaming Media and the transmission means of existing 2D+Delta form, only need carry out the cutting and the reorganization of code stream, and do not need encoder is improved largely, therefore more simple in realization, cost is cheaper; Than Optimus 3D technology, though employing also is the transmission of single channel code stream, can realizes the reorganization of multichannel source code flow the recipient, thereby not only can support the code stream form that look divides, support rendering methods such as time-division, frequency division mode too.
As shown in Figure 2, be a kind of structural representation of realizing scene of Fig. 1 embodiment.In the drawings as can be seen as can the cooperate coding of finishing multi-channel video, the work of cutting encapsulation such as the video compression coding server of transmit leg, 3D video distribution processing server, stream media distribution server, the recipient can comprise the intelligent mobile phone terminal etc. that receives PC, the IPTV of 3D Streaming Media and receive the 3D Streaming Media by wireless mode by interconnected network mode.
In another specific embodiment, the video source of transmit leg is two-way (left side and right) source code flow, when cutting, need select cutting unit earlier according to network capacity, wherein least unit is picture group (Group of Pictures, be called for short GOP), GOP comprises an I frame and relevant P frame and B frame at least, and the ordering packing rule after the cutting as shown in Figure 3.The data block that left side road source code flow and right wing source code flow cut out can be numbered by the odd even order, the sequence number of the data block that for example left road source code flow cuts out is odd numbers such as 1,3,5 by volume, the sequence number of the data block that the right wing source code flow cuts out is even numbers such as 2,4,6 by volume, and the data block with this two-way code stream is assembled in the single channel code stream according to numerical order then.When encapsulation, these sequence numbers are packaged in the transport network layer of code stream.After the recipient receives this single channel code stream, ordering packing rule according to a preconcerted arrangement carries out decapsulation to the single channel code stream, with sequence number is that the data block of odd number extracts and be reduced into left road source code flow, is that the data block of even number extracts and be reduced into the right wing source code flow with sequence number.
Because video code flow mistake may occur in transmission course, the mistake that occurs in therefore can also increasing transmission course in the transmission course of said method embodiment is revised, and according to packet loss or do not have yard situation and carry out the step that selectivity abandons.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
As shown in Figure 4, be the structural representation of an embodiment of 3D stream media transmission system of the present invention.Present embodiment 3D stream media transmission system specifically comprises: code stream cutting unit 1, data segment sequencing unit 2, single channel code stream encapsulation unit 3, single channel code stream transmission unit 4 and code stream recomposition unit 5.Wherein code stream cutting unit 1 is responsible for respectively the multichannel source code flow that receives being carried out cutting.The data segment that data segment sequencing unit 2 is responsible for each road source code flow is syncopated as sorts.Data block after single channel code stream encapsulation unit 3 is responsible for sorting is encapsulated in the single channel video code flow, carries the sequence number of each data block in the transport network layer of described single channel video code flow.Single channel code stream transmission unit 4 is responsible for the packaged single channel video code flow of transmission.Code stream recomposition unit 5 is responsible for after receiving described single channel video code flow, re-assemblies out the multichannel source code flow according to the sequence number of described each data block.
In the present embodiment, code stream cutting unit 1 can also specifically comprise: module and cutting module are selected by cutting unit, wherein cutting unit selects module to be responsible for selecting cutting unit according to network capacity, and the cutting module is responsible for respectively described multichannel source code flow being carried out cutting according to described cutting unit.
Preferably, the least unit of cutting unit is the picture group, and described picture group comprises an I frame and relevant P frame and B frame at least.
As shown in Figure 5, be the structural representation of another embodiment of 3D stream media transmission system of the present invention.Compare with a last embodiment, present embodiment also comprises data transmission fault processing unit 6, this unit is responsible in the process of the packaged single channel video code flow of single channel code stream transmission unit 4 transmission, the mistake that occurs in the transmission course is revised, and according to packet loss or do not have yard situation and carry out selectivity and abandon.
In another embodiment, the multichannel source code flow comprises left road source code flow and right wing source code flow, described data segment sequencing unit specifically is used for according to the ordering packing rule of making an appointment, and the data block of left road source code flow after the cutting and right wing source code flow is pressed the odd even serial number respectively; Described code stream recomposition unit is used for after receiving described single channel video code flow, according to the ordering packing rule of making an appointment, restores left road source code flow and right wing source code flow respectively according to the odd even order.
Each embodiment all adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that same or analogous part cross-references gets final product between each embodiment.For system embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. 3D flow-medium transmission method comprises:
Receive the multichannel source code flow, and respectively described multichannel source code flow is carried out cutting;
The data segment that each road source code flow is syncopated as sorts, and is encapsulated in the single channel video code flow, carries the sequence number of each data block in the transport network layer of described single channel video code flow;
Transmit packaged single channel video code flow;
After receiving described single channel video code flow, re-assembly out the multichannel source code flow according to the sequence number of described each data block.
2. 3D flow-medium transmission method according to claim 1, the wherein said operation of respectively described multichannel source code flow being carried out cutting is specially:
Select cutting unit according to network capacity, and respectively described multichannel source code flow is carried out cutting according to described cutting unit.
3. 3D flow-medium transmission method according to claim 2, the least unit of wherein said cutting unit are the picture group, and described picture group comprises an I frame and relevant P frame and B frame at least.
4. 3D flow-medium transmission method according to claim 1 wherein in the process of the packaged single channel video code flow of transmission, also comprises:
The mistake that occurs in the transmission course is revised, and according to packet loss or do not have yard situation and carry out selectivity and abandon.
5. 3D flow-medium transmission method according to claim 1, wherein said multichannel source code flow comprises left road source code flow and right wing source code flow, the operation that the described data segment that each road source code flow is syncopated as sorts is specially:
According to the ordering packing rule of making an appointment, the data block of left road source code flow after the cutting and right wing source code flow is pressed the odd even serial number respectively;
The operation that described sequence number according to described each data block re-assemblies out the multichannel source code flow is specially:
According to the ordering packing rule of making an appointment, restore left road source code flow and right wing source code flow respectively according to the odd even order.
6. 3D stream media transmission system comprises:
Code stream cutting unit is used for respectively the multichannel source code flow that receives being carried out cutting;
The data segment sequencing unit is used for the data segment that each road source code flow is syncopated as is sorted;
Single channel code stream encapsulation unit is used for the data block after the ordering is encapsulated into the single channel video code flow, carries the sequence number of each data block in the transport network layer of described single channel video code flow;
Single channel code stream transmission unit is used to transmit packaged single channel video code flow;
The code stream recomposition unit is used for after receiving described single channel video code flow, re-assemblies out the multichannel source code flow according to the sequence number of described each data block.
7. 3D stream media transmission system according to claim 6, wherein said code stream cutting unit specifically comprises:
Module is selected by cutting unit, is used for selecting cutting unit according to network capacity;
The cutting module is used for respectively described multichannel source code flow being carried out cutting according to described cutting unit.
8. 3D stream media transmission system according to claim 7, the least unit of wherein said cutting unit are the picture group, and described picture group comprises an I frame and relevant P frame and B frame at least.
9. 3D stream media transmission system according to claim 6 wherein also comprises:
The data transmission fault processing unit is used for the process at the packaged single channel video code flow of described single channel code stream transmission unit transmission, the mistake that occurs in the transmission course revised, and according to packet loss or do not have yard situation and carry out selectivity and abandon.
10. 3D stream media transmission system according to claim 6, wherein said multichannel source code flow comprises left road source code flow and right wing source code flow, described data segment sequencing unit specifically is used for according to the ordering packing rule of making an appointment, and the data block of left road source code flow after the cutting and right wing source code flow is pressed the odd even serial number respectively; Described code stream recomposition unit is used for after receiving described single channel video code flow, according to the ordering packing rule of making an appointment, restores left road source code flow and right wing source code flow respectively according to the odd even order.
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| CN103856784A (en) * | 2012-12-03 | 2014-06-11 | 联想(北京)有限公司 | Data sending method, data receiving method and electronic devices |
| CN111372035A (en) * | 2018-12-25 | 2020-07-03 | 杭州海康威视数字技术股份有限公司 | Multimedia data processing method and device, electronic equipment and readable storage medium |
| CN111614869A (en) * | 2020-04-17 | 2020-09-01 | 北京中庆现代技术股份有限公司 | 4K high definition camera double-circuit picture collection system |
| CN113051544A (en) * | 2019-12-26 | 2021-06-29 | 瑞昱半导体股份有限公司 | External device and verification updating method thereof |
| CN116781867A (en) * | 2023-07-08 | 2023-09-19 | 深圳市恺恩科技有限公司 | Method and system for monitoring transmission line in signal-free area |
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