CN104469538B - RTP video streaming data packet recombination methods towards picture image quality compared with small loss - Google Patents
RTP video streaming data packet recombination methods towards picture image quality compared with small loss Download PDFInfo
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- CN104469538B CN104469538B CN201410751308.XA CN201410751308A CN104469538B CN 104469538 B CN104469538 B CN 104469538B CN 201410751308 A CN201410751308 A CN 201410751308A CN 104469538 B CN104469538 B CN 104469538B
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/6437—Real-time Transport Protocol [RTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64761—Control signals issued by the network directed to the server or the client directed to the server
- H04N21/64776—Control signals issued by the network directed to the server or the client directed to the server for requesting retransmission, e.g. of data packets lost or corrupted during transmission from server
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64784—Data processing by the network
- H04N21/64792—Controlling the complexity of the content stream, e.g. by dropping packets
Abstract
The invention discloses a kind of RTP video streaming data packet recombination methods towards picture image quality compared with small loss, sequential processes in the ideal case;When network signal is unstable, including four kinds of modes, if mode 1, video bag to be solved are differed within 15 with video bag sequence number is received;If mode 2, video bag to be solved are differed between 15 to 100 with video bag sequence number is received;If mode 3, video bag to be solved are differed more than 100 numbers with video bag sequence number is received;If mode 4, video bag to be solved are differed less than 0 with video bag sequence number is received, differentiation is that video bag sequence number restarts, or video bag is out of order.The inventive method is processed by the classification to corresponding sequence number different situations, and Internet video sequence is rapidly completed in the case where network environment is not considered, fluency and the accuracy played are ensured to greatest extent, improves video sequence efficiency.
Description
Technical field
The invention belongs to network video stream transmitting technical field, be related to it is a kind of towards picture image quality compared with small loss
RTP video streaming data packet recombination methods.
Background technology
With the deep development of network multimedia technology, real-time live broadcast, video monitoring have become a huge enterprise.Mesh
Before, video streaming media technology is widely used in internet multimedia news briefing, the online live, web advertisement, ecommerce, video
The every aspect of the information services of internet such as program request, long-distance education, tele-medicine, network radio station, real-time video meeting.
Streaming Media is a kind of form for transmitting audio, video and multimedia file in a network in a streaming manner.Streaming Media
File format is supported using stream transmission and the media formats played.Streaming manner is by multimedias such as video and audios
File is divided into compressed package one by one by special compress mode, is transmitted continuously, in real time to subscriber computer from server.User
Without whole file download is finished, only can need on the user computer utilize corresponding by the start-up study of short period
Player is played out to the video or the streaming video file such as audio that compress, and remaining part will proceed to download, until
Finish.A series of related bags of this process referred to as " flow ".
Host-host protocol is an important component of stream media technology, is also basic part.It includes " RSVP "
(real-time streams are assisted for (RSVP), " RTP " (RTP), " RTCP " (RTCP Real-time Transport Control Protocol), " RTSP "
View), these four agreements constitute the basis of " real-time " service.Wherein, RTP (Real-time Transport
Protocol, RTP) it is to be announced in RFC 1889 within 1996 by the multimedia transmission work group of IETF.
Real-time Transport Protocol is described in detail the normal data bag form for transmitting Voice & Video on the internet.
Real-time Transport Protocol provides the end-to-end transfer service with real-time characteristic for data, and RTP transmission of video is often based upon
Udp protocol, to be serviced using its multichannel node and verification;Both agreements both provide the function of transport layer protocol.But
RTP can be suitable with other bottom-layer network or host-host protocol be used together.In addition, RTP does not guarantee that transmission or prevents unordered
Transmission, does not know the reliability of bottom-layer network yet.
RTP messages are made up of two parts, i.e. header and payload.
The RTP video data bag sort methods for commonly using at present are ranked up based on sequence number, are arranged with sequence number
Sequence can ensure the continuity of video playback, but in the case where network condition is poor, because receiving terminal waits certain for a long time
The video bag of one sequence number, video parsing cannot be carried out persistently, cause video pictures to stop and video playback interruption, be even switched off,
And the method by reloading video, performance can significantly decline.
It is the easy bad student's packet loss of data transfer mass data based on UDP, out of order.NALU bursts are easily lost in transmitting procedure
Lose, the discontinuous of video data can be caused.
The content of the invention
It is an object of the invention to provide a kind of RTP video streaming data packet recombination methods towards picture image quality compared with small loss,
Prior art is solved using being ranked up based on sequence number, but in the case where network condition is poor, due to receiving terminal it is long when
Between a certain sequence number of wait video bag, video parsing cannot carry out persistently, cause that video pictures stop and video playback is interrupted,
The problem being even switched off.
The technical solution adopted in the present invention is, a kind of RTP video streaming data packet weights towards picture image quality compared with small loss
Prescription method, the method is implemented according to following steps:
Transmitting terminal sends N number of video flowing package, serial number 0,1,2,3 ..., N, N<1000,
In network signal stabilization ideally, receiving terminal starts reception, it is necessary to parse No. 0 video bag, if received
First bag for arriving is No. 0 video bag, then directly carry out parsing broadcasting, then needs to wait No. 1 video bag afterwards, is connected to second
Wrap during for No. 1 video bag, proceed parsing and play, the like, N video bags are waited, it is N video bags such as to receive,
Then directly parsing is played, that is, video bag to be solved is reciprocity with reception video bag, sequential processes;
In the case where network signal is unstable, receiving terminal does not receive and waits to unpack in sequence, it is assumed that receiving terminal is current
It is M video bags to wait to unpack, and the bag being currently received is K video bags, then include following four mode as the case may be:
If mode 1,0<K-M≤15, that is, video bag to be solved is differed within 15 with video bag sequence number is received, then will be received
Video bag be temporarily stored into Hash table, current desired video bag to be solved, i.e. M video bags are then searched in Hash table, such as
Fruit finds video bag to be solved, then parsing broadcasting is directly carried out to M video bags, and M video bags are deleted in Hash table,
To keep there is less element in Hash table, if not searching M video bags, regarding for next reception is continued waiting for
Frequency is wrapped;
If mode 2,15<K-M≤100, that is, video bag to be solved is differed between 15 to 100 with video bag sequence number is received, then
The video bag that will be received is temporarily stored into Hash table, then begins look for caching from M video bags in Hash table, one by one
Treatment composition NALU, until treatment is to K video bags;
If mode 3, K-M>100, that is, video bag to be solved is differed more than 100 numbers with video bag sequence number is received, and illustrates network
Environment is very unstable, and in order to keep the fluency of video, it is necessary to do appropriate discard processing, the element that will be cached in Hash table is clear
Sky, directly the video bag for receiving as video bag to be solved, parsing is played, i.e., receive video bag K as M videos using current
Bag, restarts caching;
If mode 4, K-M<0, then it is that video bag sequence number restarts to need differentiation, or video bag is out of order,
When K is a far smaller than number of M, then video bag sequence number can be defined as and restarted, M is initially into K, after
It is continuous to receive next time;
When the difference of K and M is in a less scope, then be considered that video bag is out of order, the video bag is cached, after
Continuous next time receives.
The beneficial effects of the invention are as follows,
1) the method is extracted when video bag is analyzed to RTP packet number, is pressed time stamp different from tradition and is extracted sequence
Thinking, it is possible to increase the speed of video sequence analysis, can be rapidly completed in the case where network environment is not considered Internet video sequence,
And ensure fluency and the accuracy played to greatest extent;Meanwhile, the present invention can process the sequence of different types of video files, energy
Situations such as enough reply video file species is more.
2) engineering of the present invention suitable for monitor in real time property, it is ensured that the continuity of on-line monitoring picture, prevents video from drawing
Face distortion.The method is succinct, efficiently the real-time of video playback is maintained, while can also meet the order of video streaming data packet
Parsing.
3) present invention uses corresponding video bag parser, by the analysis to bag sequence number and time stamp, by different sequence numbers
Classification caching, according to the appropriate packet loss of network environment, adjusts the parsing order of video bag, not only in the case where network environment is excellent,
Video definition higher is kept, and in the case of unstable networks, appropriate discarding is done to video bag, subtracted to greatest extent
The loss of few video pictures, so as to ensure fluency and the accuracy played.Packet loss, it is out of order in the case of, to having connect
The data for receiving are resequenced, decoded.Key technology is that high-quality can ensure the smooth parsing of video.
Brief description of the drawings
Fig. 1 be the inventive method embodiment under WIFI network environment, cell-phone customer terminal receive in video 30 minutes with
Machine extracts N minutes give out a contract for a project and connects the quantity block diagram of bag;
Fig. 2 be the inventive method embodiment under WIFI network environment, cell-phone customer terminal receive in video 30 minutes with
The quantity block diagram of bag is abandoned in the unpacking of machine extraction N minutes;
Fig. 3 be the inventive method embodiment under 3G network environment, cell-phone customer terminal is receiving random in video 30 minutes
Extract N minutes give out a contract for a project and connect the quantity block diagram of bag;
Fig. 4 be the inventive method embodiment under 3G network environment, cell-phone customer terminal is receiving random in video 30 minutes
Extract the quantity block diagram that bag is abandoned in the unpacking of N minutes.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
RTP video streaming data packet recombination method of the present invention towards picture image quality compared with small loss, by using in RTP headers
Sequence number and time stamp content carry out packet sequencing, specifically include:
Sequence number accounts for 16, the sequence number for identifying the RTP messages transmitted by sender, often sends a message, sequence
Row number increases 1, and by sequence number come detection messages loss situation, message of resequencing recovers data to recipient;
Time stamp (Timestamp) accounts for 32, and time stamp reflects first sampling instant of eight hytes of the RTP messages, connects
Receipts person comes computing relay and delay jitter using time stamp, and carries out Synchronization Control.
The method of the present invention, it is contemplated that there is the factors such as unstable, the video packet loss of network environment, using RTP headers Bao Xu
Number extraction, give it is a kind of extract sequence number sort RTP video bags method, specifically according to following steps implement,
Assuming that there is one section of pending original video stream, transmitting terminal sends N number of video flowing package, and sequence number is followed successively by 0,1,2,
3 ... .., N, N<1000,
When RTP video bags are received and parsed through, according to video packet head sequence number, this method maintains a Kazakhstan to receiving terminal therebetween
Uncommon table carries out caching process to video bag, and Hash table (is also named hash table), is directly conducted interviews according to key value (Key)
Data structure, wherein, by the key value of mapping function, i.e., the unique data storage of correspondence, the array of data storage
It is called hash table, that is to say, that storage is accessed by the way that key value is mapped in table a position, with the speed for accelerating to search
Degree, Hash table in the present invention, key value is video bag sequence number, and correspondence storage is the video bag for entirely receiving, point
It is the treatment of following two major classes situation,
Network signal is stable ideally,
Receiving terminal starts reception, it is necessary to parse No. 0 video bag, if first bag for receiving is No. 0 video bag, directly
Tap into row parsing to play, then need to wait No. 1 video bag afterwards, when being connected to second bag for No. 1 video bag, proceed parsing
Play, the like, N video bags are waited, it is N video bags such as to receive, then directly parsing is played, that is, treat that solution (waits solution
Analysis) video bag with receive video bag equity, sequential processes;
In the case that network signal is unstable, receiving terminal is not received and waits to unpack in sequence, it is assumed that receiving terminal is currently treated
It is M video bags to unpack, and the bag being currently received is K video bags, then include following four mode as the case may be:
If mode 1,0<K-M≤15, that is, video bag to be solved is differed within 15 (containing 15) with video bag sequence number is received, then will
The video bag for receiving is temporarily stored into Hash table, and current desired video bag to be solved, i.e. M videos are then searched in Hash table
Bag, if finding video bag to be solved, directly carries out parsing broadcasting, and deletes No. M in Hash table to regard to M video bags
Frequency is wrapped, and to keep there is less element in Hash table, if not searching M video bags, continues waiting for next connecing
The video bag of receipts;
If mode 2,15<K-M≤100, that is, video bag to be solved is differed in 15 to 100 (containing 100) with video bag sequence number is received
Between, then the video bag that will be received is temporarily stored into Hash table, then begins look for caching from M video bags in Hash table,
Treatment one by one constitutes NALU, until treatment is to K video bags;
If mode 3, K-M>100, that is, video bag to be solved is differed more than 100 numbers with video bag sequence number is received, and illustrates network
Environment is very unstable, and in order to keep the fluency of video, it is necessary to do appropriate discard processing, the element that will be cached in Hash table is clear
Sky, directly the video bag for receiving as video bag to be solved, parsing is played, i.e., receive video bag K as M videos using current
Bag, restarts caching;
If mode 4, K-M<0, then it is that video bag sequence number restarts to need differentiation, or video bag is out of order,
When K is a far smaller than number of M, then video bag sequence number can be defined as and restarted, M is initially into K, after
It is continuous to receive next time;
When the difference of K and M is in a less scope, then be considered that video bag is out of order, the video bag is cached, after
Continuous next time receives.
Embodiment, suppose there is one section of video flowing (containing 200 video bags).
Transmitting terminal sends video bag serial number 0,1,2,3,4,5,6 ..., and 200, the video bag sequence number that receiving terminal is received is successively
It is 0,1,2,4,18,3,5,30,65,126,118 ..., when receiving terminal receives No. 0 video bag, No. 1 video bag, No. 2 video bags,
Because receiving video bag and video bag to be solved equity (i.e. K=M), directly parsing is played, and receiving terminal receives No. 4 and regards afterwards
Frequency is wrapped, then No. 4 video bags are temporarily stored into (i.e. 0 in Hash table<K-M≤15), and No. 3 video bags are searched in Hash table, afterwards
No. 18 video bags remain unchanged in temporary Hash table, continue waiting for receiving;When No. 3 video bags are received, No. 3 video bags are carried out
Parsing playback process;No. 5 video bags are received afterwards, then No. 5 video bags are temporarily stored into Hash table, and 4 are searched in Hash table
Number video bag, has No. 4 video bags instantly in Hash table, then No. 4 video bags are taken out from caching carries out parsing broadcasting, and by 4
Number video bag is deleted from Hash table;Continue to No. 30 video bags, then No. 30 video bags are temporarily stored into (i.e. 15 in Hash table
<K-M≤100), and No. 5 video bags of lookup carry out parsing broadcasting, after caching deletes No. 5 video bags, receive No. 65 video bags,
Then No. 65 video bags are temporarily stored into Hash table, No. 6 video bags are begun look for, due to not having No. 6 video bags in table, then table is taken out
The video bag of middle smallest sequence number, i.e., No. 18 video bag carry out parsing broadcasting as waiting to unpack;When receiving No. 126 video bags (i.e.
K-M>100), then Hash table cache is emptied, using No. 126 video bags as video bag to be solved, parsing is played, cached again;Most
It is followed by No. 118 video bag (i.e. K-M<0), the difference of K and M is smaller, regard as it is out of order, by the video bag caching, continue next time
Receive.
From said process as can be seen that the present invention is in video bag unpacking process, according to the different situations of network environment, correspondence
Different unpacking method, in the case where network environment is poor, because packet loss is serious, although of the invention unpacking is played and may be made
The phenomenon such as the broadcasting generation interruption of reception video, discontinuous, but the smooth playing of video can be still kept, fluency can expire
The visual experience of sufficient user, thus RTP videos packet sequencing of the present invention method fully met on visual performance practical application will
Ask.
Additionally, this method also has time efficiency higher, including following two aspect:
1) present invention is clear and definite according to different situations classification, after video bag sequence number is taken out, directly compare with classification numeral (with
As a example by 0,15,100), comparative result is directly processed package, it is to avoid a large amount of unnecessary calculating, and the time of having saved opens
Pin.
2) present invention maintains a Hash table, Hash table to be cleared up immediately after unpacking, network feelings during Packet analyzing is taken
When condition is not good, empty at any time, remain less data amount in table, improve the efficiency of search in table.
Fig. 1 is that under WIFI network environment, cell-phone customer terminal randomly selects N minutes video in 30 minutes receiving video
Giving out a contract for a project for bag connects the quantity block diagram of bag, and abscissa represents the time end randomly selected in figure, and ordinate is the quantity of video bag,
To send bag number, left frame is reception bag number to every group of left frame;Fig. 2 is the inventive method embodiment for right in Fig. 1
The quantity block diagram for abandoning bag is unpacked between seasonable, abscissa represents the time period randomly selected in figure, and ordinate is the number of video bag
Amount, to unpack number, left frame is to abandon bag number to every group of left frame.In Fig. 1, Fig. 2, count the 1st, 6,17,23,29 minutes
6 the transmission bags of time period, receptions are wrapped, unpacked, abandoning bag quantity.The resolution ratio for sending video is 1920x1080, by Fig. 1, Fig. 2
As can be seen that send bag and receiver packet number amount remaining basically stable, network environment preferably, abandons bag negligible amounts, receives video bag base
Originally broadcasting can be unpacked, illustrates that the present invention can quickly be received under good network environment and solve video bag, can be sequentially
Smooth broadcasting video.
Fig. 3 is that under 3G network environment, cell-phone customer terminal is given out a contract for a project receiving video and randomly select in 30 minutes N minutes
The quantity block diagram of bag is connect, abscissa represents the time end randomly selected in figure, ordinate is the quantity of video bag, the left side of every group
To send bag number, left frame is reception bag number to frame;Fig. 4 is the inventive method embodiment for correspondence time solution in Fig. 3
Bag abandons the quantity block diagram of bag, and abscissa represents the time period randomly selected in figure, and ordinate is the quantity of video bag, every group
To unpack number, left frame is to abandon bag number to left frame;In Fig. 3 and Fig. 4, the 1st, 4,16,22,26 minute 6 time has been counted
The transmission bag of section, reception are wrapped, unpacked, abandoning bag quantity.The resolution ratio for sending video is 1920x1080, can be seen by Fig. 3, Fig. 4
Go out, send bag and receive and be surrounded by that certain quantity is poor, network environment is more unstable, and have it is a number of abandon bag, partly reception
To bag can be stored in Hash caching, played by caching to extract progressively to unpack, illustrate of the invention in the unstable feelings of network environment
Under condition, can be cached by Hash and quickly extract unpacking, although have a number of stream abandoned bag, but do not influence overall video
It is smooth to play.
The inventive method considers different network environments, various video resolution ratio, the fluency of video playback and real-time
Etc. factor, using Real-time Transport Protocol header, video bag sequence number is extracted, by Hash table cache, at different situations classification
Reason, gives a kind of method unpacked in the sequence of RTP videos streaming, changes tradition and extracts sequence according to time stamp, sequence number
Thinking, under conditions of accuracy is ensured, simplifies video packet sequencing flow, can be rapidly completed Internet video order unpacking and broadcast
The process put, and ensure the real-time and accuracy of result;Meanwhile, the present invention can process the sequence of polytype video flowing, face
To the video file of various video compression standards (such as MPEG-1/2/4, H.261, H.263), various resolution ratio are coped with
Video, and keep smooth playing.
Claims (2)
1. a kind of RTP video streaming data packet recombination methods towards picture image quality compared with small loss, it is characterised in that the method according to
Following steps are implemented:
Assuming that transmitting terminal sends N number of video flowing package, serial number 0,1,2,3 ..., N, N<1000,
In the case of network signal stabilization, receiving terminal starts reception, it is necessary to parse No. 0 video bag, if receive first
Individual bag is No. 0 video bag, then directly carry out parsing broadcasting, then needs to wait No. 1 video bag afterwards, and it is No. 1 to be connected to second bag
During video bag, proceed parsing and play, the like, N video bags are waited, it is N video bags such as to receive, then directly solve
Analysis is played, that is, video bag to be solved is reciprocity with reception video bag, sequential processes;
In the case where network signal is unstable, receiving terminal does not receive and waits to unpack in sequence, it is assumed that receiving terminal is currently waited to solve
It is M video bags to wrap, and the bag being currently received is K video bags, then include following four processing mode as the case may be:
If mode 1,0<K-M≤15, that is, video bag to be solved is differed within 15 with video bag sequence number is received, then by regarding for receiving
Frequency bag is temporarily stored into Hash table, current desired video bag to be solved, i.e. M video bags is then searched in Hash table, if looked into
Video bag to be solved is found, then parsing broadcasting is directly carried out to M video bags, and M video bags are deleted in Hash table, to protect
Hold in Hash table and there is less element, if not searching M video bags, continue waiting for the video of next reception
Bag;
If mode 2,15<K-M≤100, that is, video bag to be solved is differed between 15 to 100 with video bag sequence number is received, and will be received
To video bag be temporarily stored into Hash table, take out table in smallest sequence number video bag, as waiting to unpack, carry out parsing broadcasting;
If mode 3, K-M>100, that is, video bag to be solved is differed more than 100 numbers with video bag sequence number is received, and illustrates network environment
It is very unstable, in order to keep the fluency of video, it is necessary to do appropriate discard processing, the element cached in Hash table is emptied, directly
Connect the video bag for receiving as video bag to be solved, parsing is played, i.e., receive video bag K as M video bags, weight using current
It is new to start caching;
If mode 4, K-M<0, then it is that video bag sequence number restarts to need differentiation, or video bag is out of order,
When K is a far smaller than number of M, then video bag sequence number can be defined as and restarted, M is initially into K, under continuation
Once receive;
When the difference of K and M is in a less scope, then be considered that video bag is out of order, by video bag caching, under continuation
Secondary reception.
2. the RTP video streaming data packet recombination methods towards picture image quality compared with small loss according to claim 1, its feature
It is:Described Hash table is by mapping function, i.e., one the key value unique data storage of correspondence, the Hash in this method
Table, key value is video bag sequence number, and correspondence storage is the video bag for entirely receiving.
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CN106961627B (en) * | 2017-03-24 | 2019-07-02 | 北京金风易通科技有限公司 | A method of improving real-time video play quality |
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CN1909500A (en) * | 2005-08-05 | 2007-02-07 | 中兴通讯股份有限公司 | Method for guaranteeing service quality of media receiving end |
CN101394252A (en) * | 2008-11-12 | 2009-03-25 | 北京佳讯飞鸿电气股份有限公司 | Data transmission method based on RTP |
CN101707786A (en) * | 2009-11-26 | 2010-05-12 | 武汉虹信通信技术有限责任公司 | Multilink video packet receiving and playing method based on public mobile communication |
CN103929681A (en) * | 2014-04-09 | 2014-07-16 | 安徽超远信息技术有限公司 | Method for improving RTP video streaming treatment efficiency in low-speed network |
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