CN102130886B - Network video streaming media system, transmission processing method, transmitting end - Google Patents
Network video streaming media system, transmission processing method, transmitting end Download PDFInfo
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- CN102130886B CN102130886B CN201010002815.5A CN201010002815A CN102130886B CN 102130886 B CN102130886 B CN 102130886B CN 201010002815 A CN201010002815 A CN 201010002815A CN 102130886 B CN102130886 B CN 102130886B
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Abstract
The invention discloses a network video streaming media system, a transmission processing method, a transmitting end and a receiving end. The method comprises the following steps that: the transmitting end determines the priority of a data packet according to the type of a video frame in the data packet of network video streaming media, and transmits higher-priority data packet of the network video streaming media preferentially; the receiving end resorts the received data packet of the network video streaming media so as to recover an original sequence of the data packet of the network video streaming media; and the receiving end plays the data packet of the network video streaming media, of which the sequence is reduced. In the network video streaming media system and the network video streaming media method, encoding characteristics based on a network video streaming media video coding format and transmission characteristics are optimized; on one hand, the condition that a client playing effect is sharply deteriorated and cannot be improved in a long time in case of insufficient data is effectively avoided; and on the other hand, a condition that a player frequently repeats buffering waiting time in a scheme of simultaneously compressing multi-rate data in the process of switching between different code rates is avoided.
Description
Technical field
The present invention relates to Technology of Network Streaming Media field, particularly relate to a kind of network video streaming media system and method for transmission processing, transmitting terminal.
Background technology
Network flow-medium refers to and adopts streaming manner to play media formats in a network, as audio frequency, video or multimedia file etc.By these data according to certain way cutting or coding, them are made to become a series of small-sized packet, be transferred in client by network transmission technology, and by client according to agreement, the packet received is reduced into original document or data flow, then is applied according to its practical use.
In traditional Technology of Network Streaming Media, the data that each node receives, usually can total former state be sent in network, like this, client just can obtain complete data.But in some specific network flow-medium application, such as, in internet video live broadcasting, to the real-time of data and time delay very responsive, that is, in these instances, the constraint of all packets validity all sometimes.At a time, the validity of some packet will reduce and even disappears.This means in some cases, in fact client does not need always to obtain whole data; The data of some out-of-date inefficacies in other words, nonsensical for the application of client.When the network environment residing for client is comparatively blocked up, time bandwidth is lower, this situation odds will increase greatly.And this time, the transmission of a large amount of invalid datas, can take again valuable bandwidth resources, reduces actual effective transfer of data further.When this vicious circle occurs and can not get effective alleviation and improve time, finally this node will stop up network because of data invalid in a large number, normal effective data cannot be obtained in time, thus cannot complete original business function normally normally.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of network video streaming media system and method for transmission processing, can ensure the fluency of video playback as far as possible.
One aspect of the present invention provides a kind of method for transmission processing of Internet video Streaming Media, comprising:
Transmitting terminal is according to the priority of the type determination packet of frame of video in the packet of Internet video Streaming Media, wherein, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority;
Described transmitting terminal sorts according to the type of frame of video in packet to the packet of described Internet video Streaming Media, and clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame;
The packet of described transmitting terminal to the described Internet video Streaming Media after sequence sends in order;
The packet of receiving terminal to the described Internet video Streaming Media received is resequenced, to recover original order of the packet of described Internet video Streaming Media;
The packet of described receiving terminal to the described Internet video Streaming Media after reduction sequence is play.
According to an embodiment of the method for transmission processing of Internet video Streaming Media of the present invention, above-mentioned transmitting terminal comprises according to the priority of the type determination packet of frame of video in the packet of Internet video Streaming Media, the preferential step with the packet of the described Internet video Streaming Media of higher priority that sends:
Described transmitting terminal cushions the packet of described Internet video Streaming Media;
The packet of described transmitting terminal to the described Internet video Streaming Media of buffering sorts according to the type of frame of video in packet, and clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame;
The packet of described transmitting terminal to the described Internet video Streaming Media after sequence sends in order.
According to an embodiment of the method for transmission processing of Internet video Streaming Media of the present invention, also comprise:
Receiving terminal determines according to network state the rank transmitting data, to the data of described transmitting terminal request corresponding level;
Described transmitting terminal, according to the request of described receiving terminal, sends the packet of corresponding priority.
Another aspect of the present invention provides a kind of network video streaming media system, comprising:
Transmitting terminal, for the priority of the type determination packet according to frame of video in the packet of Internet video Streaming Media, wherein, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority; Sort according to the type of frame of video in packet to the packet of described Internet video Streaming Media, clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame; The packet of the described Internet video Streaming Media after sequence is sent in order;
Receiving terminal, for receiving the packet of the described Internet video Streaming Media from described transmitting terminal, resequences to the packet of the described Internet video Streaming Media received, to recover original order of the packet of described Internet video Streaming Media; The packet of the described network flow-medium after reduction sequence is play.
According to an embodiment of network video streaming media system of the present invention, transmitting terminal cushions the packet of described Internet video Streaming Media, sort according to the type of frame of video in packet to the packet of the described Internet video Streaming Media of buffering, clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame; The packet of the described Internet video Streaming Media after sequence is sent in order.
According to an embodiment of network video streaming media system of the present invention, receiving terminal also transmits the rank of data, to the data of described transmitting terminal request corresponding level for determining according to network state;
Transmitting terminal, also for the request according to described receiving terminal, sends the packet of corresponding priority.
Another aspect of the present invention also provides a kind of transmitting terminal, comprising:
Data buffering module, for the packet of buffer network video stream media;
Classification reordering module, for obtaining packet from described data buffering module, according to the priority of the type determination packet of the frame of video in packet, wherein, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, and the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority; Packet is resequenced by the precedence information according to packet, and clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame;
Data transmission blocks, for obtaining the packet after rearrangement from described classification reordering module and send.
Further, this transmitting terminal also comprises:
Rank receiver module, for receiving the request of data from receiving terminal, obtains the rank of the packet that will download;
Described data transmission blocks, according to the rank of the packet that will download, sends the packet of corresponding priority.
Another aspect of the present invention also provides a kind of network video streaming media system, comprises above-mentioned transmitting terminal, also comprises receiving terminal, and this receiving terminal comprises:
Data reception module, for receive Internet video Streaming Media sequence after packet, and the packet that buffer memory receives; Wherein, described packet has different priority according to the type of the frame of video comprised, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority;
Data rearrangement module, for the packet rearrangement received by described data reception module, with the original order of recovery data packets;
Video playback module, for receiving the packet that described data rearrangement module exports, being supplied to media player and playing.
Further, receiving terminal also comprises:
Rank determination module, for receiving the average speed of download of data according to described data reception module, determines the rank of the packet that will download; Send request of data to transmitting terminal, request of data comprises the rank of the packet that will download;
Defect compensating module, simulates corresponding packet, to ensure that described media player is correctly decoded for the packet described data rearrangement module being reset to rear defect.
The method for transmission processing of Internet video Streaming Media provided by the invention and system, by transmitting terminal, packet is divided into different priority, the packet that preferential transmission priority is high, thus ensure that receiving terminal is preferentially received important packet, and send to player to play after rearrangement, thus ensure that the fluency of video playback as far as possible.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
Fig. 1 illustrates the flow chart of the method for transmission processing of a kind of Internet video Streaming Media of the embodiment of the present invention;
Fig. 2 illustrates the process schematic diagram of packet in the embodiment of the present invention;
Fig. 3 illustrates the flow chart of the method for transmission processing of the another kind of Internet video Streaming Media of the embodiment of the present invention;
Fig. 4 illustrates the structure chart of a kind of network video streaming media system of the embodiment of the present invention;
Fig. 5 illustrates the structure chart of the network video streaming media system of an alternative embodiment of the invention;
Fig. 6 illustrates the structure chart of the receiving terminal of one embodiment of the present of invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.In the accompanying drawings, identical label represents identical or similar assembly or element.
The original video data of uncompressed, amount of information very large, is directly stored them or is transmitted by network inconvenient, usually needing to use various video coding technique to carry out compressing and encoding.In method for video coding common at present, mostly based on the Compression Strategies of intraframe coding, motion estimation, compensation.And on frame forming strategies, mostly also form similar I frame (intracoded frame), P frame (inter-frame encoding frame), B frame (bi-directional predicted frames) or similar concept.Although only have these frames all complete, just can see complete video pictures, at some in particular cases, in time must abandoning the data of some frame, the importance of each Frame is not of equal value.
Such as, the frame that I frame produces as intraframe coding, its display does not need the data of other frame.And its a part of frame of video subsequently, be then calculate last result based on it.Obviously, it has limit priority and the longest data validity interval, because until there is next I frame in video flowing, the effect of previous I frame just disappears completely.
The frame that P frame produces as interframe encode, it needs to utilize the I frame before it or P frame and reducible.And it not only has an impact to the generation of P frame thereafter, and several B frames before also can rely on its data.So it has medium priority and data validity interval.
B frame, as a kind of alternating binary coding frame, is resolved for the I frame or P frame ability can completely that must rely on front and back simultaneously.And it also only has an impact to the generation of adjacent several B frames, therefore, its priority is minimum, and data validity interval is also the shortest.
According to above importance and the term of validity, can according to above-mentioned information and data, classification and management is carried out to each Frame in video data, make it possible at some in emergency circumstances, choice can be made to different packets, abandon the inessential non-emergent packet of part, thus ensure effective broadcasting of client.
Fig. 1 illustrates the flow chart of the method for transmission processing of a kind of Internet video Streaming Media of the embodiment of the present invention.
As shown in Figure 1, in step 102, transmitting terminal is according to the priority of the type determination packet of frame of video in the packet of Internet video Streaming Media, and preferential transmission has the packet of the Internet video Streaming Media of higher priority.Such as, at MPEG (Moving Picture ExpertsGroup, dynamic image expert group) 1, in the video stream media of the form such as MPEG2 and MPEG4, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority.Packet is sent according to the order of I frame, P frame, B frame.
In step 104, the packet of receiving terminal to the Internet video Streaming Media received is resequenced, to recover original order of the packet of network video stream media.After receiving terminal receives packet, need the packet rearrangement to receiving, with the original order of recovery data packets.Such as according to the numbering of packet, packet is resequenced, or according to the timestamp information in packet, packet is resequenced.
In step 106, the packet of receiving terminal to the Internet video Streaming Media after reduction sequence is play.Packet after reduction sequence is issued media player and is play by receiving terminal.
Such as, in net cast process, for the packet in each time period according to the importance of Frame in packet with ageing packet is divided into different priority; Transmitting terminal preferentially sends the packet in this time period with higher priority, the packet with higher priority has higher importance and ageing, thus ensure that receiving terminal is preferentially received these and has higher importance and ageing packet as far as possible, ensure effect and the quality of net cast.
Fig. 2 illustrates the process schematic diagram of packet in the embodiment of the present invention.Fig. 2 (a) is the initial data packet sequence of a period of time of buffering, and wherein packet A represents the packet comprising A type frame of video, and packet B represents the packet comprising Type B frame of video, and packet C represents the packet comprising C type frame of video; Under normal circumstances, packet A, B, C is staggered.Fig. 2 (b) represents the sequence of data packet after sequence, and packet A has the highest priority, and packet B has secondary high priority, and packet C has minimum priority.Fig. 2 (c) represents the sending order of packet, wherein preferentially sends the packet A of limit priority, and being secondly the packet B of time high priority, is finally the packet C of lowest priority.Fig. 2 (d) represents the PACKET RECEIVE SEQUENCE of receiving terminal.Fig. 2 (e) represents the sequence of data packet after receiving terminal rearrangement, by rearrangement, has recovered the original order of packet.Such as, Frame A, B, C can correspond to the frame of video I commonly used in Video coding, P, B.
Fig. 3 illustrates the flow chart of the method for transmission processing of the another kind of Internet video Streaming Media of the embodiment of the present invention.
As shown in Figure 3, in step 302, receiving terminal sends request of data to transmitting terminal, and this request comprises receiving terminal and determines according to network state the data packet level that needs transmit.Such as, receiving terminal is when starting the video data playing a channel, and first obtain the buffering of one piece of data as player, receiving terminal calculates the average speed of download of downloading data simultaneously.Receiving terminal, according to the average speed of download of data, determines whether to download all videos data, still downloads the data of some rank, and be sent to transmitting terminal by request of data.
In step 304, transmitting terminal is according to the priority of the type determination packet of frame of video in video stream media packet.
In step 306, transmitting terminal sends the packet with corresponding priority according to the data packet level of request.
In step 308, the packet of receiving terminal to the Internet video Streaming Media received is resequenced, to recover original order of the packet of network video stream media.
In step 310, the packet of receiving terminal to the Streaming Media after reduction sequence is play.If only download section divided data, then receiving terminal sends to player to play by after the data convert of download order.
In step 312, receiving terminal determines according to current network state the data packet level needing transmission, and sends request of data to transmitting terminal, then carries out execution step 304.Such as, after beginning is more newly downloaded, receiving terminal periodic statistical average speed of download for the previous period, determines according to average speed of download the priority whether adjusting the download policy of oneself and the packet of download.
According to an embodiment of the method for transmission processing of Internet video Streaming Media of the present invention, when a receiving terminal download section divided data bag or when causing the packet of some rank to download in time because network condition is bad, also comprise after step 308: receiving terminal simulates corresponding packet for the packet of defect, thus ensures being correctly decoded of player.
Fig. 4 illustrates the structure chart of the network video streaming media system of one embodiment of the present of invention.As shown in Figure 4, this system comprises transmitting terminal 41 and receiving terminal 42.Wherein, transmitting terminal 41 is for the priority of the type determination packet according to frame of video in the packet of Internet video Streaming Media, and preferential transmission has the packet of the Internet video Streaming Media of higher priority; Receiving terminal 42, for receiving the packet of the Internet video Streaming Media from transmitting terminal 41, is resequenced to the packet of the Internet video Streaming Media received, to recover original order of the packet of network video stream media; The packet of the network flow-medium after reduction sequence is play.Such as, the type of frame of video comprises I frame, P frame and B frame; The packet of transmitting terminal 41 buffer network video stream media, sort according to the type of frame of video in packet to the packet of the Internet video Streaming Media of buffering, clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame; The packet of the Internet video Streaming Media after sequence is sent in order.Data can be transmitted by P2P mode between transmitting terminal 41 and receiving terminal 42, or transmit data by the mode such as program request, broadcast of common centralized server.
According to an embodiment of network video streaming media system of the present invention, transmitting terminal 41 comprises data buffering module 411, classification reordering module 412 and data transmission blocks 413.Wherein, data buffering module 411 is for the packet of buffer network video stream media.Data buffering module 411 is generally used for cushioning the packet in predetermined amount of time.Classification reordering module 412: for obtaining packet from data buffering module 411, analyze packet content, determine the priority of this packet according to the type of the frame of video in packet, packet is resequenced by the precedence information according to packet.Data transmission blocks 413, for obtaining the packet after rearrangement from classification reordering module 412, sends to receiving terminal.
According to an embodiment of network video streaming media system of the present invention, receiving terminal 42 comprises data reception module 421, data rearrangement module 422 and video playback module 423.Wherein, data reception module 421 is for receiving the packet from transmitting terminal, and the packet that buffer memory receives.Data rearrangement module 422, for the packet rearrangement received by data reception module 421, with the original order of recovery data packets, and exports to video playback module 423.The packet that video playback module 423 exports for receiving data rearrangement module 422, is supplied to media player and plays.
Fig. 5 illustrates the structure chart of the network video streaming media system of an alternative embodiment of the invention.As shown in Figure 5, receiving terminal 52 is except comprising data reception module 421, data rearrangement module 422 and video playback module 423, also comprise rank determination module 524, for receiving the average speed of download of data according to data reception module 421, determine the rank of the packet that will download, and sending request of data to transmitting terminal, request of data comprises the rank of the packet that will download.Transmitting terminal, except comprising data buffering module 411, classification reordering module 412 and data transmission blocks 413, also comprises rank receiver module 514, for receiving the request of data from receiving terminal 52, obtains the rank of the packet that will download.Data transmission blocks 413, according to the rank of the packet that will download, sends the packet of corresponding priority.
Fig. 6 illustrates the structure chart of the receiving terminal of one embodiment of the present of invention.As shown in Figure 6, receiving terminal 62 comprises data reception module 421, data rearrangement module 422, defect compensating module 625 and video playback module 623.Wherein, data reception module 421 and data rearrangement module 422 can describe, for being not described in detail at this for purpose of brevity see the correspondence in Fig. 4.Defect compensating module 625, for resetting the packet of rear defect to data reordering module 422, simulates corresponding packet, to ensure being correctly decoded of player.Video playback module 623 is play the sequence of data packet after compensation.
Network video streaming media system of the present invention and method, support hierarchical coding and the transmission of video data, coding for common video code model forms feature and characteristic, video data according to importance with ageingly divide into multiple different rank, when network state is poor, class transport is divided to video data, although may because lack the continuity that certain more low-level data reduces fluency and the picture play, but be unlikely to allow picture stagnate completely or cannot play completely, to reach an ideal result of broadcast and to save meaningless inefficient bandwidth consumption.The adjustable strategies of further employing adaptive network dynamic change, according to network condition the last period, analyzes and estimation current network state, and determines the data rank of transmission, thus reach adaptive effect.
Network video streaming media system of the present invention and method, feature and the transmission feature of streaming media video coding said shank Network Based are optimized, effectively avoid the client terminal playing effect when data deficiencies on the one hand sharply to worsen and the situation that may can not get improvement for a long time, avoid compressing the stand-by period that player when switching between different code check in multi code Rate of Chinese character scheme can frequently repeat to cushion on the other hand simultaneously.
Claims (11)
1. a method for transmission processing for Internet video Streaming Media, is characterized in that, comprising:
Transmitting terminal is according to the priority of the type determination packet of frame of video in the packet of Internet video Streaming Media, wherein, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority;
Described transmitting terminal sorts according to the type of frame of video in packet to the packet of described Internet video Streaming Media, and clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame;
The packet of described transmitting terminal to the described Internet video Streaming Media after sequence sends in order;
The packet of receiving terminal to the described Internet video Streaming Media received is resequenced, to recover original order of the packet of described Internet video Streaming Media;
The packet of described receiving terminal to the described Internet video Streaming Media after reduction sequence is play.
2. the method for transmission processing of Internet video Streaming Media according to claim 1, is characterized in that, also comprise:
Described receiving terminal determines according to network state the rank transmitting data, to the data of described transmitting terminal request corresponding level;
Described transmitting terminal, according to the request of described receiving terminal, sends the packet of corresponding priority.
3. the method for transmission processing of Internet video Streaming Media according to claim 2, is characterized in that, also comprise:
Described receiving terminal is according to the priority of current network state self-adaptative adjustment request data transfer.
4. a network video streaming media system, is characterized in that, comprising:
Transmitting terminal, for the priority of the type determination packet according to frame of video in the packet of Internet video Streaming Media, wherein, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority; Sort according to the type of frame of video in packet to the packet of described Internet video Streaming Media, clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame; The packet of the described Internet video Streaming Media after sequence is sent in order;
Receiving terminal, for receiving the packet of the described Internet video Streaming Media from described transmitting terminal, resequences to the packet of the described Internet video Streaming Media received, to recover original order of the packet of described Internet video Streaming Media; The packet of the described network flow-medium after reduction sequence is play.
5. network video streaming media system according to claim 4, it is characterized in that, described transmitting terminal cushions the packet of described Internet video Streaming Media, sort according to the type of frame of video in packet to the packet of the described Internet video Streaming Media of buffering, clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame; The packet of the described Internet video Streaming Media after sequence is sent in order.
6. the network video streaming media system according to claim 4 or 5, is characterized in that, described receiving terminal also transmits the rank of data, to the data of described transmitting terminal request corresponding level for determining according to network state;
Described transmitting terminal, also for the request according to described receiving terminal, sends the packet of corresponding priority.
7. network video streaming media system according to claim 6, is characterized in that,
Described receiving terminal is according to the priority of current network state self-adaptative adjustment request data transfer.
8. a transmitting terminal, is characterized in that, comprising:
Data buffering module, for the packet of buffer network video stream media;
Classification reordering module, for obtaining packet from described data buffering module, according to the priority of the type determination packet of the frame of video in packet, wherein, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, and the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority; Packet is resequenced by the precedence information according to packet, and clooating sequence is followed successively by the packet comprising I frame, the packet comprising P frame and comprises the packet of B frame;
Data transmission blocks, for obtaining the packet after rearrangement from described classification reordering module and send.
9. transmitting terminal according to claim 8, is characterized in that, also comprises:
Rank receiver module, for receiving the request of data from receiving terminal, obtains the rank of the packet that will download;
Described data transmission blocks, according to the rank of the packet that will download, sends the packet of corresponding priority.
10. a network video streaming media system, comprises transmitting terminal as claimed in claim 8 or 9, also comprises receiving terminal, and wherein, described receiving terminal comprises:
Data reception module, for receive Internet video Streaming Media sequence after packet, and the packet that buffer memory receives; Wherein, described packet has different priority according to the type of the frame of video comprised, the type of described frame of video comprises I frame, P frame and B frame, the packet comprising I frame has limit priority, the packet comprising P frame has secondary high priority, and the packet comprising B frame has lower priority;
Data rearrangement module, for the packet rearrangement received by described data reception module, with the original order of recovery data packets;
Video playback module, for receiving the packet that described data rearrangement module exports, being supplied to media player and playing.
11. systems according to claim 10, is characterized in that, described receiving terminal also comprises:
Rank determination module, for receiving the average speed of download of data according to described data reception module, determines the rank of the packet that will download; Send request of data to transmitting terminal, request of data comprises the rank of the packet that will download;
Defect compensating module, simulates corresponding packet, to ensure that described media player is correctly decoded for the packet described data rearrangement module being reset to rear defect.
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| CN201010002815.5A CN102130886B (en) | 2010-01-18 | 2010-01-18 | Network video streaming media system, transmission processing method, transmitting end |
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| CN106160920B (en) * | 2015-03-31 | 2019-05-31 | 联想(北京)有限公司 | A kind of information processing method, device and electronic equipment |
| CN105681931B (en) * | 2016-01-12 | 2018-12-28 | 清华大学 | A kind of video data package transmission method and system based on wireless network |
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| CN114866838B (en) * | 2022-05-31 | 2024-02-23 | 厦门蝉羽网络科技有限公司 | Live broadcast on-demand method and system based on information processing |
| CN114979023A (en) * | 2022-07-26 | 2022-08-30 | 浙江大华技术股份有限公司 | Data transmission method, system, electronic equipment and storage medium |
| CN115988242A (en) * | 2022-12-27 | 2023-04-18 | 富春科技股份有限公司 | Low-delay video transmission method in 5G network |
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| CN1728677A (en) * | 2004-07-28 | 2006-02-01 | 国家数字交换系统工程技术研究中心 | Method and system for carrying video stream media through network in multiple velocities |
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