CN105453512A - Video data transmission device, method, server, base station and client - Google Patents

Video data transmission device, method, server, base station and client Download PDF

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Publication number
CN105453512A
CN105453512A CN201480026521.2A CN201480026521A CN105453512A CN 105453512 A CN105453512 A CN 105453512A CN 201480026521 A CN201480026521 A CN 201480026521A CN 105453512 A CN105453512 A CN 105453512A
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video
client
coded system
time span
segmentation
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CN201480026521.2A
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CN105453512B (en
Inventor
邓晓琳
韩广林
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Abstract

The present invention relates to the field of communications. A video data transmission device, method, server, base station and client, being capable of enabling video data transmission to be more efficient and meeting customer requirements. The method comprises: a server segments a video and encodes the video segments by various means; a base station computes a data rate of a client according to channel quality, and selects an appropriate encoding rate according to the data rate for video data transmission.

Description

Video data transmission device, method, server, base station and client
Video data transmission device, method, server, base station and client
Technical field
The present embodiments relate to communication technical field, more particularly to video data transmission device, method, server, base station and client.Background technology
With the development of forth generation mobile communication technology, mobile video business needs more data traffics, and widely used video data transmission technology is HAS (Http Adaptive Streaming, adaptive stream media in the prior art）Technology, the technology is that source video data are carried out into burst, and each burst is encoded with the coding techniques of different code checks, and generate the retrieval file of each burst code check corresponding with its, client is when asking the burst of specific code check, the index file is first downloaded, then the corresponding video slicing of the code check according to required for the index file finds client, finally obtain the video slicing and the video slicing is decoded.
During video data transmission is carried out using prior art, inventor has found prior art, and at least there are the following problems：
After channel quality is deteriorated, server is after the coded system originally determined by client carries out Video coding, the video segmentation after coding is transferred to after client via the channel after change, the video quality that client is received will due to channel quality variation and phase strain differential；
And when channel quality becomes more preferable than in the past, if the waste by channel resource is caused still is encoded to video slicing using the currently determined coded system of client.The content of the invention
Embodiments of the invention provide video data transmission device, method, server, base station and client, can adjust video slicing coded system according to the change of channel quality so that video data transmission more efficiently and is met customer need.
The one side of the embodiment of the present invention is to provide a kind of video data transmission device, and described device includes：
Segmenting unit, for video data to be temporally segmented, carries out codings using different coded systems to each video segmentation and forms video slicing, every kind of coded system corresponds to a video slicing, And generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, segment information described in burst information includes the corresponding time span of the video segmentation, and the burst information burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；Quantifying unit, corresponding each video slicing is each segmented for being obtained from the segmenting unit, and the quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
Unit is described, for obtaining the segment information, the burst information and the quality quantized result from the segmenting unit and the quantifying unit, the corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result；
File transmitting element, for obtaining the media description file from the description unit, the media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client.
With reference in a first aspect, in the first possible implementation, described device also includes：Request reception unit, for after the media description file is sent to client, video traffic solicited message is obtained, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business；
Burst transmitting element, for obtaining first burst information from the request reception unit, corresponding first video slicing of first burst information is sent to the client.
Second aspect of the embodiment of the present invention is to provide a kind of video data transmission device, and described device includes：
File reception unit is described, for obtaining media description file, the media description file includes the segment information of video data, the quality quantized result of burst information and the video data, the segment information includes the corresponding time span of segmentation of the video data, the burst information includes the corresponding coded system of video slicing and the corresponding code check of the coded system of the video data, the quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
User profile receiving unit, for obtaining user profile, the user profile includes the mass fraction minimum needed for the channel SNRs and client between client and base station； Capacity calculation unit, for obtaining the channel SNRs from the user profile receiving unit, data transmission capabilities of the client in the time span are determined according to the channel SNRs, the data transmission capabilities include the data bit number that the client can be transmitted on a resource block；
Data transfer rate determining unit, for obtaining the data transmission capabilities from the capacity calculation unit, the minimum mass fraction according to needed for the data transmission capabilities and client, it is determined that being the data transfer rate of the client distribution in the time span, the data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that the client is transmitted on the resource block in the time span；
Burst determining unit, for obtaining the data transfer rate from the data transfer rate determining unit, it is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.With reference to second aspect, in the first possible implementation, described device also includes：
Service request acquiring unit, for obtaining the video traffic solicited message that the client is sent, the solicited message includes corresponding first burst information of corresponding first burst of the video segmentation；
Change unit, for obtaining the video traffic solicited message from the service request acquiring unit, the coded system in the video traffic solicited message is revised as corresponding first coded system of first burst information, and the encoder bit rate in the video traffic solicited message is revised as corresponding first encoder bit rate of first burst information；
Request transmitting unit, for obtaining the amended video traffic solicited message from the modification unit, will be modified after the video traffic request message send to server.
3rd aspect of the embodiment of the present invention is to provide a kind of video data transmission device, and described device includes：
User profile transmitting element, for sending user profile to base station, the user profile includes mass fraction minimum needed for the channel SNRs and client between client and the base station, video frequency coding rate in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
Solicited message transmitting element, for after the user profile transmitting element sends the user profile, video traffic solicited message is sent to the base station, so that the video traffic solicited message is modified in the base station and is forwarded to server, the solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, the video point The video slicing is formed after section is encoded；
It is segmented acquiring unit, for after the solicited message transmitting element sends the video traffic request message, obtain video segmentation and the corresponding media description file of the video segmentation, the media description file includes the segment information and burst information of video data, the segment information includes the corresponding time span of segmentation of the video data, and the burst information includes corresponding first coded system of the video slicing and corresponding first encoder bit rate of first coded system；
Decoding unit, for obtaining first coded system from the segmentation acquiring unit, is decoded to the video slicing in the time span according to the corresponding decoding process of the first coded system and reads decoded video data.
4th aspect of the embodiment of the present invention is to provide a kind of method of transmitting video data, and methods described includes：
Video data is temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, the segment information includes the corresponding time span of the video segmentation, and the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；
The quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
The corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result；
The media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client.
With reference to fourth aspect, in the first possible implementation, after the media description file is sent to client, methods described also includes：
After the media description file is sent to client, video traffic solicited message is obtained, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business；Corresponding first video slicing of first burst information is sent to the client.
5th aspect of the embodiment of the present invention is to provide a kind of method of transmitting video data, methods described bag Include：
Obtain media description file, the media description file includes the burst information of video data and the quality quantized result of the video data, the burst information includes the corresponding time span of segmentation of the video data, the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system, the quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；User profile is obtained, the user profile includes the mass fraction minimum needed for the channel SNRs and client between client and base station；
Data transmission capabilities of the client in the time span are determined according to the channel SNRs, the data transmission capabilities include the data bit number that the client can be transmitted on a resource block；The minimum mass fraction according to needed for the data transmission capabilities and client, it is determined that being the data transfer rate of the client distribution in the time span, the data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that the client is transmitted on the resource block in the time span；
It is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.
It is being that methods described also includes after the client determines the corresponding coded system of the video segmentation and the encoder bit rate according to the data transfer rate in the first possible implementation with reference to the 5th aspect：
The video traffic solicited message that the client is sent is obtained, the solicited message includes corresponding first burst information of corresponding first burst of the video segmentation；
The coded system in the video traffic solicited message is revised as corresponding first coded system of first burst information, and the encoder bit rate in the video traffic solicited message is revised as corresponding first encoder bit rate of first burst information；
The video traffic request message after will be modified is sent to server.
6th aspect of the embodiment of the present invention is to provide a kind of method of transmitting video data, and methods described includes：
User profile is sent to base station, the user profile includes mass fraction minimum needed for the channel SNRs and client between client and the base station, video frequency coding rate in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check； Video traffic solicited message is sent to the base station, so that the video traffic solicited message is modified in the base station and is forwarded to server, the solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, and the video slicing is formed after the video segmentation is encoded；
Obtain video segmentation and the corresponding media description file of the video segmentation, the media description file includes the segment information and burst information of video data, the segment information includes the corresponding time span of segmentation of the video data, and the burst information includes corresponding first coded system of the video slicing and corresponding first encoder bit rate of first coded system；
The video slicing is decoded in the time span according to the corresponding decoding process of the first coded system and decoded video data is read.
7th aspect of the embodiment of the present invention is to provide a kind of server, and the server includes bus and the transmitter, receiver, memory and the processor that are connected with the bus, and the memory is used for store instruction, and processor, which reads the instruction, to be used for：
Video data is temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, the segment information includes the corresponding time span of the video segmentation, and the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；
The quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
The corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result；
The media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client by the transmitter.
With reference to the 7th aspect, in the first possible implementation, the processor reads the instruction and is additionally operable to：
After the media description file is sent to client, video traffic solicited message is obtained by the receiver, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business； Corresponding first video slicing of first burst information is sent to the client by the transmitter.
8th aspect of the embodiment of the present invention is to provide a kind of base station, and the base station includes bus and the receiver, transmitter, memory and the processor that are connected with the bus, and the memory is used for store instruction, and the processor, which reads the instruction, to be used for：
Media description file is obtained by the receiver, the media description file includes the burst information of video data, and the quality quantized result of the video data, the burst information includes the corresponding time span of segmentation of the video data, the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system, the quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
User profile is obtained by the receiver, the user profile includes the mass fraction minimum needed for the channel SNRs and client between client and base station；
Data transmission capabilities of the client in the time span are determined according to the channel SNRs, the data transmission capabilities include the data bit number that the client can be transmitted on a resource block；The minimum mass fraction according to needed for the data transmission capabilities and client, it is determined that being the data transfer rate of the client distribution in the time span, the data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that the client is transmitted on the resource block in the time span；
It is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.
It is being that the processor reads the instruction and is additionally operable to after the client determines the corresponding coded system of the video segmentation and the encoder bit rate according to the data transfer rate in the first possible implementation with reference to the 8th aspect：
The video traffic solicited message that the client is sent is obtained, the solicited message includes corresponding first burst information of corresponding first burst of the video segmentation；
The coded system in the video traffic solicited message is revised as corresponding first coded system of first burst information, and the encoder bit rate in the video traffic solicited message is revised as corresponding first encoder bit rate of first burst information；
By the transmitter will be modified after the video traffic request message send to server. 9th aspect of the embodiment of the present invention is to provide a kind of client, the client includes bus and the transmitter, receiver, memory and the processor that are connected with the bus, the memory is used for store instruction, and the processor, which reads the instruction, to be used for：
User profile is sent to base station by the transmitter, the user profile includes mass fraction minimum needed for the channel SNRs and client between client and the base station, video frequency coding rate in different number ranges is expressed as the different mass fractions, the mass fraction sends video traffic solicited message by the transmitter with the proportional pass of the code check to the base station, so that the video traffic solicited message is modified in the base station and is forwarded to server, the solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, the video slicing is formed after the video segmentation is encoded；
Video segmentation and the corresponding media description file of the video segmentation are obtained by the receiver, the media description file includes the segment information and burst information of video data, the segment information includes the corresponding time span of segmentation of the video data, and the burst information includes corresponding first coded system of the video slicing and corresponding first encoder bit rate of first coded system；
The video slicing is decoded in the time span according to the corresponding decoding process of the first coded system and decoded video data is read.
The embodiment of the present invention provides video data transmission device, method, server, base station and client, server carries out burst to original video first, and coding is carried out according to different coding mode to each burst form video slicing, burst quality is quantified and media description file is generated, then base station obtains the data transmission capabilities of media description file and client in the channel, and determine data transfer rate of each client in each video segmentation time span according to the data transmission capabilities, the coded system of video slicing is determined finally according to the media description file and the data transfer rate, video slicing coded system can be adjusted according to the change of channel quality, so that video data transmission more efficiently and is met customer need.Brief description of the drawings
Fig. 1 is this hair figure one
Fig. 2 is this hair figure two
Fig. 3 is this hair figure three
Fig. 4 is this hair Figure four Fig. 5 is video data transmission apparatus structure schematic diagram five provided in an embodiment of the present invention；Fig. 6 is method of transmitting video data schematic flow sheet one provided in an embodiment of the present invention；
Fig. 7 is method of transmitting video data schematic flow sheet two provided in an embodiment of the present invention；
Fig. 8 is method of transmitting video data schematic flow sheet three provided in an embodiment of the present invention；
Fig. 9 is method of transmitting video data schematic flow sheet four provided in an embodiment of the present invention；
Figure 10 is the structural representation of server provided in an embodiment of the present invention；
Figure 11 is the structural representation of base station provided in an embodiment of the present invention；
Figure 12 is the structural representation of client provided in an embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, and is not intended to be limiting the present invention." one kind ", " described " and " being somebody's turn to do " of singulative used in the embodiment of the present invention and appended claims is also intended to including most forms, unless context clearly shows that other implications.It is also understood that term used herein " and/or " refer to and may be combined comprising one or more associated any or all of project listed.
The embodiment of the present invention provides video data transmission device 01, as shown in figure 1, the device 01 includes:Segmenting unit 011, for video data to be temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, segment information described in burst information includes the corresponding time span of the video segmentation, and the burst information burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；
Quantifying unit 012, for obtaining the corresponding code check of coded system from segmenting unit 011, the quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
Unit 013 is described, for obtaining segment information and quantized result from segmenting unit 012 and quantifying unit, the corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result； File transmitting element 014, for obtaining media description file from description unit 013, the media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client.
Jin mono- Walk's, as shown in Fig. 2 device 01 also includes：
Request reception unit 015, for after the media description file is sent to client, video traffic solicited message is obtained, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business；
Burst transmitting element 016, for obtaining the first coded system and affiliated first encoder bit rate from request reception unit 015, corresponding first video slicing of first burst information is sent to the client.
Zai Jin mono- Walk's, quantifying unit 012 specifically for：
Quantization test is carried out to the video quality of the video slicing under the corresponding coded system of the video slicing, the quantization test is to be contrasted the video slicing with the original video；
Quantifying the mode of test includes subjective testing or objective examination, and generates quality quantized result.
Embodiments of the invention provide video data transmission device, server carries out burst to original video first, and each burst is encoded according to different coding mode, then burst quality is quantified and media description file is generated, the burst and corresponding media description file are sent to client, to determine the corresponding video slicing of video segmentation according to media description file and channel quality, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide video data transmission device 02, as shown in figure 3, device 02 includes:File reception unit 021 is described, for obtaining media description file, media description file includes the quality quantized result of segment information, burst information and the video data of video data, segment information includes the corresponding time span of segmentation of video data, burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system of video data, quantized result includes different mass fractions, code check in different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check；
User profile receiving unit 022, for obtaining user profile, user profile includes mass fraction minimum needed for the channel SNRs and client between client and base station；
Capacity calculation unit 023, for obtaining channel SNRs from user profile receiving unit 022, data transmission capabilities of the client in time span are determined according to channel SNRs, data transmission capabilities include the data bit number that client can be transmitted on a resource block； Data transfer rate determining unit 024, for obtaining data transmission capabilities from capacity calculation unit 023, the minimum mass fraction according to needed for data transmission capabilities and client, it is determined that the data transfer rate distributed in time span for client, data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that client is transmitted on the resource block in time span；
Burst determining unit 025, for obtaining data transfer rate from data transfer rate determining unit 024, it is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.
Jin mono- Walk's, as shown in figure 4, the device 02 also includes：
Service request acquiring unit 026, the video traffic solicited message for obtaining client transmission, solicited message includes corresponding first burst information of corresponding first burst of video segmentation；
Change unit 027, for obtaining video traffic solicited message from business acquisition request unit 026, coded system in video traffic solicited message is revised as corresponding first coded system of the first burst information, and the encoder bit rate in video traffic solicited message is revised as corresponding first encoder bit rate of the first burst information；
Request transmitting unit 028, for from modification unit 027 obtain amended video traffic solicited message, will be modified after video traffic request message send to server.
Jin mono- Walk's, capacity calculation unit 023 specifically for：
The data transmission capabilities of the client in the time span are determined according to the channel SNRs between client and base station by Adaptive Modulation and Coding technology.
Zai Jin mono- Walk's, data transfer rate determining unit 024 specifically for：
Resource block in the time span is individually assigned to the client, untill resource block all in mass fraction or the time span minimum needed for the client is met is all allocated；If client mass fraction minimum needed for meeting, and also have unappropriated resource block in time span, then unappropriated resource block is continued to be individually assigned to client, until client meet resource blocks all in highest transmission code rate or the time span it is all allocated untill；
After all resource blocks in time span are all allocated, the ratio of the data bit number that client is transmitted on the resource block of distribution and the data bit number on all resource blocks in the time span is data transfer rate of the client in the time span.
Zai Jin mono- Walk's, coded system determining unit 025 specifically for：
The first coded system, the first coded system corresponding first are determined in the coded system of video segmentation Encoder bit rate is less than or equal to the data transfer rate of client.
Embodiments of the invention provide video data transmission device, the data transmission capabilities of media description file and client in the channel are obtained first, then data transfer rate of each client in each video segmentation time span is determined according to the data transmission capabilities, the corresponding video slicing of video segmentation is determined finally according to the media description file and the data transfer rate, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide video data transmission device 03, as shown in figure 5, the device 03 includes：
User profile transmitting element 031, for sending user profile to base station, user profile includes mass fraction minimum needed for the channel SNRs and client between client and base station, video frequency coding rate in different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check；
Solicited message transmitting element 032, for after user profile transmitting element 031 sends user profile, video traffic solicited message is sent to base station, so that video traffic solicited message is modified in base station and is forwarded to server, solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, and the video slicing is formed after the video segmentation is encoded；
It is segmented acquiring unit 033, for after solicited message transmitting element 032 sends video traffic request message, obtain video segmentation and the corresponding media description file of the video segmentation, media description file includes the segment information of video data, burst information, segment information includes the corresponding time span of segmentation of video data, and burst information includes corresponding first coded system of burst and corresponding first encoder bit rate of the first coded system of video data；
Decoding unit 034, for obtaining the first coded system from segmentation acquiring unit 033, is decoded to video slicing in time span according to the corresponding decoding process of the first coded system and reads decoded video data.
The embodiment of the present invention provides video data transmission device, client is received after media description file, send user profile, so that base station receives the user profile and rewrites the video traffic solicitation message of client according to channel quality and be forwarded to server, the video slicing that then the reception server is sent, and the video slicing is parsed, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide method of transmitting video data, as shown in fig. 6, this method includes： 5101st, video data is temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, segment information includes the corresponding time span of video segmentation, and burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system.
5102nd, the quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the code check that quality quantized result is included in different mass fractions, different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check.
5103rd, the corresponding media description file of generation video segmentation, media description file includes segment information and burst information and quality quantized result.
5104th, media description file is sent so that base station determines each to be segmented corresponding video slicing according to media description file and channel quality to client.
Embodiments of the invention provide method of transmitting video data, server carries out burst to original video first, and each burst is encoded according to different coding mode, then burst quality is quantified and media description file is generated, the burst and corresponding media description file are sent to client, to determine the corresponding video slicing of video segmentation according to media description file and channel quality, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide method of transmitting video data, as shown in fig. 7, this method includes：S20 obtains media description file, media description file includes the burst information of video data and the quality quantized result of video data, burst information includes the corresponding time span of segmentation of video data, burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system, quantized result includes different mass fractions, code check in different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check.
S202, acquisition user profile, user profile include mass fraction minimum needed for the channel SNRs and client between client and base station.
5203rd, data transmission capabilities of the client in time span are determined according to channel SNRs, data transmission capabilities include the data bit number that client can be transmitted on a resource block.
5204th, mass fraction minimum according to needed for data transmission capabilities and client, it is determined that the data transfer rate distributed in time span for client, data transfer rate includes client on the resource block in time span The ratio of the data bit number of transmission and the data bit number of all resource blocks in the time span.
S205, according to data transfer rate be client determine corresponding first video slicing of video segmentation, so as to server and the video slicing of client transmissions first.
Embodiments of the invention provide method of transmitting video data, the data transmission capabilities of media description file and client in the channel are obtained first, then data transfer rate of each client in each video segmentation time span is determined according to the data transmission capabilities, the corresponding video slicing of video segmentation is determined finally according to the media description file and the data transfer rate, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide method of transmitting video data, as shown in figure 8, this method includes：S30 sends user profile to base station, user profile includes mass fraction minimum needed for the channel SNRs and client between client and base station, video frequency coding rate in different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check.
5302nd, video traffic solicited message is sent to base station, so that video traffic solicited message is modified in base station and is forwarded to server, solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, and video slicing is formed after video segmentation is encoded.
5303rd, video segmentation and the corresponding media description file of the video segmentation are obtained, media description file includes the segment information and burst information of video data, segment information includes the corresponding time span of segmentation of video data, and burst information includes corresponding first coded system of burst and corresponding first encoder bit rate of the first coded system of video data.
5304th, video slicing is decoded in time span according to the corresponding decoding process of the first coded system and reads decoded video data.
Embodiments of the invention provide method of transmitting video data, the user profile and video traffic request message of client are sent to base station first, so that the video segmentation coded system in the video traffic request message is rewritten as the coded system that base station is determined according to user profile and media description file by base station according to the user profile, and it is forwarded to server, the video slicing that then the reception server is sent, the video slicing received is finally decoded using corresponding coding/decoding method, video slicing coded system can be adjusted according to the change of channel quality, so that video data transmission more efficiently and is met customer need.
In order that those skilled in the art can become apparent from that technical scheme must be understood, a kind of more detailed embodiment is had altogether below. The embodiment of the present invention provides method of transmitting video data, as shown in figure 9, this method includes：
5401st, original video data is temporally segmented by server, coding generation video slicing is carried out using different coded systems to each video segmentation, and generate the corresponding segment information of each video segmentation burst information corresponding with burst, segment information includes the corresponding time span of video segmentation, and burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system.
Specifically, can be realized by the following method：
Collected by video capture device after original video data, server is segmented after the original video data is got to the original video data, the video data can be divided into the video segmentation that multiple time spans are identical or differ, and each video segmentation after over-segmentation is encoded using different coded systems, and generate the corresponding segment information of each video segmentation and burst information, segment information includes the corresponding time span of video segmentation, burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system.
Exemplary, in HAS (Http Adaptive Streaming, adaptive stream media）In business, there are 6 kinds of different coded systems, the corresponding code check of above-mentioned coded system is respectively 128kbps, 210kbps, 350kbps, 545kbps, 876kbps and 1410kbps, assuming that the total length of HAS videos is 100 seconds, the video can be subjected to segment processing, the length being each segmented can be 5 seconds, 20 segmentations can be divided into altogether, then encoded this 20 segmentations according to the coded system of above-mentioned six kinds of code checks respectively, each segmentation forms six kinds of version of codes.
5402nd, the quantification treatment of video quality is carried out according to code rate to the different coding version of each video segmentation, and generates quality quantized result.
Specifically, can be realized by the following method：
Quantization test is carried out to the video quality of video segmentation under the corresponding coded system of video segmentation, quantifies test and is carried out according to the corresponding code check of the corresponding coded system of video segmentation；
Quantifying the mode of test includes subjective testing or objective examination, and generates quality quantized result, and the code check that quality quantized result is included in five mass fractions, different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check.
Exemplary, can the version of codes different to 6 of above-mentioned HAS business carry out video quality quantizations, quantizing process can be that according to speed size the code rate of above-mentioned 6 different version of codes is quantified as into 5 fractions, the division Ke Yi Jin mono- Walk of the fraction are quantified as MOS (Mean Opinion Score, subjective testing fraction）The form of value, MOS values after quantization may range from 1 to 5 point, and 1 represent The minimum fraction of speed, 5 represent speed highest fraction, the quantized result of above-mentioned HAS business can table be content shown in table 1 below.
Table 1
5403rd, the corresponding media description file of generation video segmentation, media description file includes segment information and burst information and quality quantized result.
5404th, server sends media description file to client.
5405th, client receives media description file, generates user profile, and send user profile to base station.
Specifically, can be realized by the following method：
Client is received after media description file, the minimum video frequency coding rate according to needed for client, minimum mass fraction needed for generation client, then client calculates channel SNRs now, and the signal to noise ratio is generated into user profile with required minimum mass fraction, and send to base station.
5406th, base station receives user profile, calculates data transmission capabilities of the client in a video segmentation time span.
Specifically, can be realized by the following method：
In forth generation mobile communication technology, due to using Adaptive Modulation and Coding technology, the data transmission capabilities of client can be determined by the channel SNRs between client and base station, data transmission capabilities represent the data bit number that client can be transmitted on a resource block.
It should be noted that data transmission capabilities of the different clients on same resource block are identical or differ.
5407th, base station mass fraction minimum according to needed for client and data transmission capabilities determine the data transfer rate distributed in video segmentation time span for client. It can specifically be realized by the following method：
Resource block in time span is individually assigned to client, untill resource block all in mass fraction or the time span minimum needed for client is met is all allocated；
If client mass fraction minimum needed for meeting, and also have unappropriated resource block in time span, then unappropriated resource block is continued to be individually assigned to client, until client meet resource blocks all in highest transmission code rate or the time span it is all allocated untill；
After all resource blocks in time span are all allocated, the ratio of the data bit number that client is transmitted on the resource block of distribution and the data bit number on all resource blocks in the time span is data transfer rate of the client in the time span.
Exemplary, can be that client distributes data transfer rate based on greedy algorithm, data transfer rate assigning process can be divided into two-wheeled, in first round assigning process, first all clients can be added in distribution queue, resource block in video segmentation is individually assigned to the client in distribution queue, if one of client meets the requirement of the minimum quality fraction needed for the client, then the client is temporarily removed from the distribution queue, untill distribution queue is all allocated for the resource block in empty or video segmentation time span；
If after in the first round, assigning process terminates, there is unnecessary resource block to be not previously allocated in video segmentation time span, all clients can be then added in distribution queue again, if data transmission capabilities highest of some client on some resource block, the resource block can then be distributed to the client, untill all unappropriated resource blocks are all allocated or distribution queue is empty.
After the assigning process of two-wheeled resource block, the data transfer rate that each client is assigned in the video segmentation time span is calculated, data transfer rate represents the ratio of data bit number and the data bit number of all resource blocks in the time span that client is transmitted on the resource block in time span.
The data transfer rate of S408, base station according to client in video segmentation time span, determines the corresponding coded system of video segmentation and encoder bit rate of the client.
Specifically, can be realized by the following method：
It is determined that after each data transfer rate of the client in video segmentation time span, for the client code check can be selected to be less than the data transfer rate of the client and closest to the first coded system of the data transfer rate in all coded systems of video segmentation, corresponding code check is the first code check, so can not only save resource but also can guarantee that a video segmentation can all be downloaded in a split time length by client.
S409, base station obtain the video traffic solicited message that client is sent, and the solicited message is carried out Rewrite, then will be forwarded to server by the video traffic request message rewritten.
Specifically, can be realized by the following method：
Client is sent after video traffic request message, base station obtains the video traffic request message, solicited message includes the corresponding coded system of video segmentation and encoder bit rate corresponding with the coded system, it is the first coded system that client is determined that the coded system in the video traffic request message then is revised as into base station, code check is revised as corresponding first code check, then will be modified after video traffic request message be forwarded to server.
S410, server receive the video traffic request message of base station forwarding, will be sent with the coded system identical video segmentation in the request message to client.
Specifically, can be realized by the following method：
Server is received after the video traffic request message of base station forwarding, the first coded system identical video segmentation in coded system in video segmentation and the request message is added on first resource block, the first resource block is the resource block for distributing to the corresponding client of the request message.
S41 clients receive video segmentation, according to the corresponding media description document analysis video segmentation of the video segmentation.
Specifically, can be realized by the following method：
Client is received after the video segmentation of server transmission, the video segmentation and the corresponding media description file of the video segmentation are read from allocated resource block, determine that the coded system of the video segmentation is the first coded system according to the media description file, then the video segmentation received is decoded using decoding process corresponding with first coded system, and reads decoded video data.
The embodiment of the present invention provides method of transmitting video data, server carries out burst to original video first, and each burst is encoded according to different coding mode, burst quality is quantified and media description file is generated, then base station obtains the data transmission capabilities of media description file and client in the channel, and determine data transfer rate of each client in each video segmentation time span according to the data transmission capabilities, the corresponding video slicing of video segmentation is determined finally according to the media description file and the data transfer rate, video slicing coded system can be adjusted according to the change of channel quality, so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide server 03, as shown in Figure 10, the server 03 includes transmitter 031, receiver 032, bus 033 and memory 034 and processor 035, wherein transmitter 031, receiver 032, memory 034 are connected with processor 035 by bus 033, the memory 034 For store instruction, the processor 035 is used for for reading the instruction：
Video data is temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, segment information includes the corresponding time span of video segmentation, and burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system；The quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the code check that quality quantized result is included in different mass fractions, different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check；
The corresponding media description file of video segmentation is generated, media description file includes segment information and burst information and quality quantized result；
Media description file is sent so that base station determines each to be segmented corresponding video slicing according to media description file and channel quality to client by transmitter 031.Jin mono- Walk's, processor 035 reads the instruction and is additionally operable to：
After media description file is sent to client, video traffic solicited message is obtained by receiver, solicited message includes the first burst information of corresponding first video slicing of video segmentation, and video traffic includes adaptive stream media business；
Corresponding first video slicing of first burst information is sent to client by transmitter.
Zai Jin mono- Walk's, processor 035 read the instruction specifically for：
Quantization test is carried out to the video quality of video slicing under the corresponding coded system of video slicing, it is to be contrasted video slicing with original video to quantify test；
Quantifying the mode of test includes subjective testing or objective examination, and generates quality quantized result, and the code check that quality quantized result is included in five mass fractions, different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check.
Embodiments of the invention provide server, server carries out burst to original video first, and each burst is encoded according to different coding mode, then burst quality is quantified and media description file is generated, the burst and corresponding media description file are sent to client, to determine coded system according to media description file and channel quality, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide base station 04, as shown in figure 11, and the base station 04 includes transmitter 041, receiver 042, bus 043 and memory 044 and processor 045, wherein transmitter 041, reception Device 042, memory 044 are connected with processor 045 by bus 043, and the memory 044 is used for store instruction, and the processor 045 is used for for reading the instruction：
Media description file is obtained by receiver, media description file includes the burst information of video data and the quality quantized result of video data, burst information includes the corresponding time span of segmentation of video data, burst information includes the corresponding coded system of video slicing and the corresponding code check of coded system, quantized result includes different mass fractions, code check in different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check；
User profile is obtained by receiver 042, user profile includes mass fraction minimum needed for the channel SNRs and client between client and base station；
Data transmission capabilities of the client in time span are determined according to channel SNRs, data transmission capabilities include the data bit number that client can be transmitted on a resource block；
The minimum mass fraction according to needed for data transmission capabilities and client, it is determined that the data transfer rate distributed in time span for client, data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that client is transmitted on the resource block in time span；
It is that client determines corresponding first video slicing of video segmentation according to data transfer rate, so as to server and the video slicing of client transmissions first.Jin mono- Walk's, processor 045 performs the instruction and is additionally operable to：
The video traffic solicited message that client is sent is obtained by receiver, solicited message includes corresponding first burst information of corresponding first burst of video segmentation；
Coded system in video traffic solicited message is revised as corresponding first coded system of the first burst information, and the encoder bit rate in video traffic solicited message is revised as corresponding first encoder bit rate of the first burst information；
By transmitter will be modified after video traffic request message send to server.
Zai Jin mono- Walk's, processor 045 read the instruction specifically for：
Data transmission capabilities of the client in time span are determined according to the channel SNRs between client and base station by Adaptive Modulation and Coding technology.
Zai Jin mono- Walk's, processor 045 read the instruction specifically for：
Resource block in time span is individually assigned to client, untill resource block all in mass fraction or the time span minimum needed for client is met is all allocated；
If client mass fraction minimum needed for meeting, and also have unappropriated resource block in time span, then unappropriated resource block is continued to be individually assigned to client, until client meets highest transmission code Untill all resource blocks are all allocated in rate or the time span；
After all resource blocks in time span are all allocated, the ratio of the data bit number that client is transmitted on the resource block of distribution and the data bit number on all resource blocks in the time span is data transfer rate of the client in the time span.
Geng Jin mono- Walk's, processor 045 read the instruction specifically for：
The first coded system is determined in the coded system of video segmentation, corresponding first encoder bit rate of the first coded system is less than or equal to the data transfer rate of client.
The embodiment of the present invention provides base station, the data transmission capabilities of media description file and client in the channel are obtained first, then data transfer rate of each client in each video segmentation time span is determined according to the data transmission capabilities, the coded system of video segmentation is determined finally according to the media description file and the data transfer rate, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Embodiments of the invention provide client 05, as shown in figure 12, the base station 05 includes transmitter 051, receiver 052, bus 053 and memory 054 and processor 055, wherein transmitter 051, receiver 052, memory 054 are connected with processor 055 by bus 053, the memory 054 is used for store instruction, and the processor 055 is used for for reading the instruction：
User profile is sent to base station by transmitter 051, user profile includes mass fraction minimum needed for the channel SNRs and client between client and base station, video frequency coding rate in different number ranges is expressed as different mass fractions, mass fraction and the proportional relation of code check；
Video traffic solicited message is sent to base station by transmitter 051, so that video traffic solicited message is modified in base station and is forwarded to server, solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, and video slicing is formed after video segmentation is encoded；
Video segmentation and the corresponding media description file of the video segmentation are obtained by receiver 052, media description file includes the segment information and burst information of video data, segment information includes the corresponding time span of segmentation of video data, and burst information includes corresponding first coded system of burst and corresponding first encoder bit rate of the first coded system of video data；
Video slicing is decoded in time span according to the corresponding decoding process of the first coded system and decoded video data is read.
Embodiments of the invention provide client, and client is received after media description file, send user Information, so that base station receives the user profile and rewrites the video traffic solicitation message of client according to channel quality and be forwarded to server, the video segmentation that then the reception server is sent, and parse the video segmentation, video slicing coded system can be adjusted according to the change of channel quality so that video data transmission more efficiently and is met customer need.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims (26)

  1. Claims
    1st, a kind of video data transmission device, it is characterised in that including：
    Segmenting unit, for video data to be temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, segment information described in burst information includes the corresponding time span of the video segmentation, and the burst information burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；Quantifying unit, corresponding each video slicing is each segmented for being obtained from the segmenting unit, and the quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    Unit is described, for obtaining the segment information, the burst information and the quality quantized result from the segmenting unit and the quantifying unit, the corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result；
    File transmitting element, for obtaining the media description file from the description unit, the media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client.
    2nd, device according to claim 1, it is characterised in that described device also includes：Request reception unit, for after the media description file is sent to client, video traffic solicited message is obtained, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business；
    Burst transmitting element, for obtaining first burst information from the request reception unit, corresponding first video slicing of first burst information is sent to the client.
    3rd, device according to claim 1, it is characterised in that the quantifying unit specifically for：Quantization test is carried out to the video quality of the video slicing under the corresponding coded system of the video slicing, the quantization test is to be contrasted the video slicing with the original video；
    The mode for quantifying test includes subjective testing or objective examination, and generates the quality quantized result.
    4th, a kind of video data transmission device, it is characterised in that including： File reception unit is described, for obtaining media description file, the media description file includes the segment information of video data, the quality quantized result of burst information and the video data, the segment information includes the corresponding time span of segmentation of the video data, the burst information includes the corresponding coded system of video slicing and the corresponding code check of the coded system of the video data, the quantized result includes the different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    User profile receiving unit, for obtaining user profile, the user profile includes the mass fraction minimum needed for the channel SNRs and client between client and base station；
    Capacity calculation unit, for obtaining the channel SNRs from the user profile receiving unit, data transmission capabilities of the client in the time span are determined according to the channel SNRs, the data transmission capabilities include the data bit number that the client can be transmitted on a resource block；
    Data transfer rate determining unit, for obtaining the data transmission capabilities from the capacity calculation unit, the minimum mass fraction according to needed for the data transmission capabilities and client, it is determined that being the data transfer rate of the client distribution in the time span, the data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that the client is transmitted on the resource block in the time span；
    Burst determining unit, for obtaining the data transfer rate from the data transfer rate determining unit, it is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.
    5th, device according to claim 4, it is characterised in that described device also includes：Service request acquiring unit, for obtaining the video traffic solicited message that the client is sent, the solicited message includes corresponding first burst information of corresponding first burst of the video segmentation；
    Change unit, for obtaining the video traffic solicited message from the service request acquiring unit, the coded system in the video traffic solicited message is revised as corresponding first coded system of first burst information, and the encoder bit rate in the video traffic solicited message is revised as corresponding first encoder bit rate of first burst information；
    Request transmitting unit, for obtaining the amended video traffic solicited message from the modification unit, will be modified after the video traffic request message send to server.
    6th, device according to claim 4, it is characterised in that the capacity calculation unit specifically for： The data transmission capabilities of the client in the time span are determined according to the channel SNRs between the client and base station by Adaptive Modulation and Coding technology.
    7th, device according to claim 4, it is characterised in that the data transfer rate determining unit specifically for：
    Resource block in the time span is individually assigned to the client, untill resource block all in mass fraction or the time span minimum needed for the client is met is all allocated；If the client mass fraction minimum needed for meeting, and also have unappropriated resource block in the time span, then unappropriated resource block is continued to be individually assigned to the client, until the client meet resource blocks all in highest transmission code rate or the time span it is all allocated untill；
    After all resource blocks in the time span are all allocated, the ratio of the data bit number that the client is transmitted on the resource block of distribution and the data bit number on all resource blocks in the time span is data transfer rate of the client in the time span.
    8th, device according to claim 4, it is characterised in that the coded system determining unit specifically for：
    Determine the first coded system in the coded system of the video segmentation, corresponding first encoder bit rate of first coded system is less than or equal to the data transfer rate of the client.
    9th, a kind of video data transmission device, it is characterised in that including：
    User profile transmitting element, for sending user profile to base station, the user profile includes mass fraction minimum needed for the channel SNRs and client between client and the base station, video frequency coding rate in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    Solicited message transmitting element, for after the user profile transmitting element sends the user profile, video traffic solicited message is sent to the base station, so that the video traffic solicited message is modified in the base station and is forwarded to server, the solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, and the video slicing is formed after the video segmentation is encoded；
    It is segmented acquiring unit, for after the solicited message transmitting element sends the video traffic request message, obtain video segmentation and the corresponding media description file of the video segmentation, the media description file includes the segment information and burst information of video data, and the segment information includes the video data Corresponding time span is segmented, the burst information includes corresponding first coded system of the video slicing and corresponding first encoder bit rate of first coded system；
    Decoding unit, for obtaining first coded system from the segmentation acquiring unit, is decoded to the video slicing in the time span according to the corresponding decoding process of the first coded system and reads decoded video data.
    10th, a kind of method of transmitting video data, it is characterised in that including：
    Video data is temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, the segment information includes the corresponding time span of the video segmentation, and the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；
    The quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    The corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result；
    The media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client.
    11st, method according to claim 10, it is characterised in that after the media description file is sent to client, methods described also includes：
    After the media description file is sent to client, video traffic solicited message is obtained, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business；Corresponding first video slicing of first burst information is sent to the client.
    12nd, method according to claim 10, it is characterised in that described to be quantified according to video objective appraisal procedure to the quality of video slicing, generation quality quantized result includes：
    Quantization test is carried out to the video quality of the video slicing under the corresponding coded system of the video slicing, the quantization test is to be contrasted the video slicing and original video；
    The mode for quantifying test includes subjective testing or objective examination, and generates the quality quantized result. 13rd, a kind of method of transmitting video data, it is characterised in that including：
    Obtain media description file, the media description file includes the burst information of video data and the quality quantized result of the video data, the burst information includes the corresponding time span of segmentation of the video data, the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system, the quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；User profile is obtained, the user profile includes the mass fraction minimum needed for the channel SNRs and client between client and base station；
    Data transmission capabilities of the client in the time span are determined according to the channel SNRs, the data transmission capabilities include the data bit number that the client can be transmitted on a resource block；The minimum mass fraction according to needed for the data transmission capabilities and client, it is determined that being the data transfer rate of the client distribution in the time span, the data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that the client is transmitted on the resource block in the time span；
    It is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.
    14th, method according to claim 13, it is characterised in that be that methods described also includes after the client determines the corresponding coded system of the video segmentation and the encoder bit rate according to the data transfer rate：
    The video traffic solicited message that the client is sent is obtained, the solicited message includes corresponding first burst information of corresponding first burst of the video segmentation；
    The coded system in the video traffic solicited message is revised as corresponding first coded system of first burst information, and the encoder bit rate in the video traffic solicited message is revised as corresponding first encoder bit rate of first burst information；
    The video traffic request message after will be modified is sent to server.
    15th, method according to claim 13, it is characterised in that described to determine that data transmission capabilities of the client in the time span include according to the channel SNRs；
    The data transmission capabilities of the client in the time span are determined according to the channel SNRs between the client and base station by Adaptive Modulation and Coding technology.
    16th, method according to claim 13, it is characterised in that described according to the data transfer The minimum mass fraction needed for ability and client, it is determined that being that the data transfer rate that the client is distributed includes in the time span：
    Resource block in the time span is individually assigned to the client, untill resource block all in mass fraction or the time span minimum needed for the client is met is all allocated；If the client mass fraction minimum needed for meeting, and also have unappropriated resource block in the time span, then unappropriated resource block is continued to be individually assigned to the client, until the client meet resource blocks all in highest transmission code rate or the time span it is all allocated untill；
    After all resource blocks in the time span are all allocated, the ratio of the data bit number that the client is transmitted on the resource block of distribution and the data bit number on all resource blocks in the time span is data transfer rate of the client in the time span.
    17th, method according to claim 13, it is characterised in that described is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.Including：
    Determine corresponding first coded system of the first burst in the coded system of the video segmentation, corresponding first encoder bit rate of first coded system is less than or equal to the data transfer rate of the client.
    18th, a kind of method of transmitting video data, it is characterised in that including：
    User profile is sent to base station, the user profile includes mass fraction minimum needed for the channel SNRs and client between client and the base station, video frequency coding rate in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    Video traffic solicited message is sent to the base station, so that the video traffic solicited message is modified in the base station and is forwarded to server, the solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, formed after the video segmentation is encoded the video slicing '
    Obtain video segmentation and the corresponding media description file of the video segmentation, the media description file includes the segment information and burst information of video data, the segment information includes the corresponding time span of segmentation of the video data, and the burst information includes corresponding first coded system of the video slicing and corresponding first encoder bit rate of first coded system；
    The video slicing is entered in the time span according to the corresponding decoding process of the first coded system Row decodes and reads decoded video data.
    19th, a kind of server, it is characterised in that transmitter, receiver, memory and the processor being connected including bus and with the bus, the memory is used for store instruction, and processor, which reads the instruction, to be used for：
    Video data is temporally segmented, coding is carried out using different coded systems to each video segmentation and forms video slicing, one video slicing of every kind of coded system correspondence, and generate the corresponding segment information of each video segmentation burst information corresponding with each video segmentation, the segment information includes the corresponding time span of the video segmentation, and the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system；
    The quality of video slicing is quantified according to video objective appraisal procedure, generate quality quantized result, the quality quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    The corresponding media description file of the video segmentation is generated, the media description file includes the segment information and the burst information and the quality quantized result；
    The media description file is sent so that base station determines described to be each segmented corresponding video slicing according to the media description file and channel quality to client by the transmitter.
    20th, server according to claim 19, it is characterised in that the processor reads the instruction and is additionally operable to：
    After the media description file is sent to client, video traffic solicited message is obtained by the receiver, the solicited message includes the first burst information of corresponding first video slicing of the video segmentation, and the video traffic includes adaptive stream media business；
    Corresponding first video slicing of first burst information is sent to the client by the transmitter.
    21st, server according to claim 19, it is characterised in that the processor read the instruction specifically for：
    Quantization test is carried out to the video quality of the video slicing under the corresponding coded system of the video slicing, the quantization test is to be contrasted the video slicing and original video；
    The mode for quantifying test includes subjective testing or objective examination, and generates the quality quantized result.
    22nd, a kind of base station, it is characterised in that receiver, the hair being connected including bus and with the bus Device, memory and processor are sent, the memory is used for store instruction, and the processor, which reads the instruction, to be used for：
    Media description file is obtained by the receiver, the media description file includes the burst information of video data, and the quality quantized result of the video data, the burst information includes the corresponding time span of segmentation of the video data, the burst information includes the corresponding coded system of the video slicing and the corresponding code check of the coded system, the quantized result includes different mass fractions, the code check in different number ranges is expressed as the different mass fractions, the mass fraction and the proportional relation of the code check；
    User profile is obtained by the receiver, the user profile includes the mass fraction minimum needed for the channel SNRs and client between client and base station；
    Data transmission capabilities of the client in the time span are determined according to the channel SNRs, the data transmission capabilities include the data bit number that the client can be transmitted on a resource block；The minimum mass fraction according to needed for the data transmission capabilities and client, it is determined that being the data transfer rate of the client distribution in the time span, the data transfer rate includes the ratio of data bit number and the data bit number of all resource blocks in the time span that the client is transmitted on the resource block in the time span；
    It is that the client determines corresponding first video slicing of the video segmentation according to the data transfer rate, so as to server and the first video slicing described in the client transmissions.
    23rd, base station according to claim 22, it is characterised in that be that the processor reads the instruction and is additionally operable to after the client determines the corresponding coded system of the video segmentation and the encoder bit rate according to the data transfer rate：
    The video traffic solicited message that the client is sent is obtained by the receiver, the solicited message includes corresponding first burst information of corresponding first burst of the video segmentation；
    The coded system in the video traffic solicited message is revised as corresponding first coded system of first burst information, and the encoder bit rate in the video traffic solicited message is revised as corresponding first encoder bit rate of first burst information；
    By the transmitter will be modified after the video traffic request message send to server.
    24th, base station according to claim 22, it is characterised in that the processor read the instruction specifically for：
    Institute is determined according to the channel SNRs between the client and base station by Adaptive Modulation and Coding technology State the data transmission capabilities of the client in the time span.
    25th, base station according to claim 22, it is characterised in that the processor read the instruction specifically for：
    Resource block in the time span is individually assigned to the client, untill resource block all in mass fraction or the time span minimum needed for the client is met is all allocated；If the client mass fraction minimum needed for meeting, and also have unappropriated resource block in the time span, then unappropriated resource block is continued to be individually assigned to the client, until the client meet resource blocks all in highest transmission code rate or the time span it is all allocated untill；
    After all resource blocks in the time span are all allocated, the ratio of the data bit number that the client is transmitted on the resource block of distribution and the data bit number on all resource blocks in the time span is data transfer rate of the client in the time span.
    26th, base station according to claim 22, it is characterised in that the processor read the instruction specifically for：
    Determine the first coded system in the coded system of the video segmentation, corresponding first encoder bit rate of first coded system is less than or equal to the data transfer rate of the client.
    27th, a kind of client, it is characterised in that transmitter, receiver, memory and the processor being connected including bus and with the bus, the memory is used for store instruction, and the processor, which reads the instruction, to be used for：
    User profile is sent to base station by the transmitter, the user profile includes mass fraction minimum needed for the channel SNRs and client between client and the base station, video frequency coding rate in different number ranges is expressed as the different mass fractions, the mass fraction sends video traffic solicited message by the transmitter with the proportional pass of the code check to the base station, so that the video traffic solicited message is modified in the base station and is forwarded to server, the solicited message includes the corresponding video slicing of video segmentation and the corresponding coded system of the video slicing and encoder bit rate corresponding with the coded system, the video slicing is formed after the video segmentation is encoded；
    Video segmentation and the corresponding media description file of the video segmentation are obtained by the receiver, the media description file includes the segment information and burst information of video data, the segment information includes the corresponding time span of segmentation of the video data, and it is corresponding that the burst information includes the video slicing First coded system and corresponding first encoder bit rate of first coded system；
    The video slicing is decoded in the time span according to the corresponding decoding process of the first coded system and decoded video data is read.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108886628A (en) * 2016-03-28 2018-11-23 索尼公司 File creating apparatus and document generating method
WO2019001391A1 (en) * 2017-06-28 2019-01-03 华为技术有限公司 Radio resource scheduling method, video terminal, and access network device
CN114338651A (en) * 2021-12-27 2022-04-12 中电金信软件有限公司 File transmission method and device, electronic equipment and readable storage medium

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107333153B (en) * 2016-04-28 2020-06-02 华为技术有限公司 Video transmission method, base station and system
CN107580339B (en) * 2017-08-25 2021-04-30 中国联合网络通信集团有限公司 Information transmission method, device and wireless communication system
CN113904980B (en) * 2021-09-30 2023-07-18 北京东土科技股份有限公司 Channel switching method, device, switch and storage medium
CN113852642B (en) * 2021-10-09 2023-05-09 珠海迈科智能科技股份有限公司 DVB standard-based TS (transport stream) stream fragment uploading method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111643A (en) * 2009-11-24 2011-06-29 Rgb网络有限公司 Managed multiplexing of video in an adaptive bit rate environment
CN102710586A (en) * 2011-03-28 2012-10-03 华为技术有限公司 Streaming media transmission control method, media transmission control method and associated equipment
CN102833219A (en) * 2011-06-16 2012-12-19 华为技术有限公司 Method and device for transmitting data files to client side
CN103384236A (en) * 2012-05-04 2013-11-06 华为技术有限公司 Method, device and system for acquiring streaming media data
US20140082192A1 (en) * 2011-05-25 2014-03-20 Huawei Technologies Co., Ltd. Processing method, distribution server, client, and system for streaming media

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102111643A (en) * 2009-11-24 2011-06-29 Rgb网络有限公司 Managed multiplexing of video in an adaptive bit rate environment
CN102710586A (en) * 2011-03-28 2012-10-03 华为技术有限公司 Streaming media transmission control method, media transmission control method and associated equipment
US20140082192A1 (en) * 2011-05-25 2014-03-20 Huawei Technologies Co., Ltd. Processing method, distribution server, client, and system for streaming media
CN102833219A (en) * 2011-06-16 2012-12-19 华为技术有限公司 Method and device for transmitting data files to client side
CN103384236A (en) * 2012-05-04 2013-11-06 华为技术有限公司 Method, device and system for acquiring streaming media data

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
许起明，余翔，徐宇明: "无线信道的自适应视频质量保障技术研究", 《广播与传输》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108886628A (en) * 2016-03-28 2018-11-23 索尼公司 File creating apparatus and document generating method
WO2019001391A1 (en) * 2017-06-28 2019-01-03 华为技术有限公司 Radio resource scheduling method, video terminal, and access network device
CN114338651A (en) * 2021-12-27 2022-04-12 中电金信软件有限公司 File transmission method and device, electronic equipment and readable storage medium

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