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CN103650449A - Media stream sending method and server - Google Patents

Media stream sending method and server Download PDF

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Publication number
CN103650449A
CN103650449A CN201180003003.5A CN201180003003A CN103650449A CN 103650449 A CN103650449 A CN 103650449A CN 201180003003 A CN201180003003 A CN 201180003003A CN 103650449 A CN103650449 A CN 103650449A
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CN
China
Prior art keywords
client
server
bandwidth
media stream
code rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201180003003.5A
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Chinese (zh)
Inventor
许磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of CN103650449A publication Critical patent/CN103650449A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80Responding to QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60Network streaming of media packets
    • H04L65/61Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The present invention provides a media stream sending method and a server. A server according to an embodiment of the present invention determines, according to a media stream having a preset transmission bit rate and sent to a client, the bandwidth used by a terminal where the client is located, and determines, according to the determined bandwidth, a transmission bit rate corresponding to the bandwidth, so as to solve the problem of the deteriorated streaming media service quality of the client and the problem of the waste of network resources incurred by inconsistency between the bandwidth used by the terminal where the client is located and the fixed bit rate in the prior art, thereby improving the streaming media service quality of the client and saving the network resources. Further, the media stream sending method provided by the embodiment of the present invention does not need the involvement of the client, so that the client is not required to undergo update or modification, thereby improving the adaptability of the client. No extra packet between the client and the server is required to be added, so as to avoid extra bandwidth overhead, thereby improving the performance of the server.

Description

Media stream sending method and server
The present invention relates to the sending method and server of the communication technology, more particularly to a kind of Media Stream for the sending method of Media Stream and server technology field.Background technology
Streaming Media refers to the audio of real-time release, the media of video multimedia content in the way of data flow on the internet, and stream media technology is then issuing multimedia data flow on ip networks(Media Stream)Technology.In the prior art, Media Stream is typically what is sent with the cbr (constant bit rate) pre-set to client, so that client can get the Media Stream with cbr (constant bit rate), carries out streaming media service.
But, because the bandwidth that terminal where client is used varies, if cbr (constant bit rate) is more than access bandwidth, client can be caused the phenomenons such as video card, mosaic occur, so as to have impact on the streaming media service quality of client, if cbr (constant bit rate) is less than access bandwidth, the waste of Internet resources can be caused;Even if client uses identical access bandwidth, but it is due to that the bandwidth of client/headend equipment to distribution of media unit changes over time and there is certain fluctuation, if bandwidth diminishes, client can be caused the phenomenons such as video card, mosaic occur, so as to have impact on the streaming media service quality of client.The content of the invention present invention provides the sending method and server of a kind of Media Stream, to the reduction of the streaming media service quality of client and the problem of the waste of Internet resources caused by inconsistent of the bandwidth that solves to use due to terminal where client in the prior art and cbr (constant bit rate).
On the one hand a kind of sending method of Media Stream is provided, including:
The bandwidth that server is used according to the Media Stream with Preset Transfer code check sent to client, terminal where determining client;
The server is according to the bandwidth, it is determined that transmission code rate corresponding with the bandwidth;
The server sends the Media Stream of the transmission code rate with the determination to the client.
On the other hand a kind of server is provided, including:
Bandwidth determining unit, the bandwidth used for the Media Stream with Preset Transfer code check sent according to the server to client, terminal where determining client; Code check determining unit, for the bandwidth determined according to the bandwidth determining unit, it is determined that transmission code rate corresponding with the bandwidth;
Code check adjustment unit, the Media Stream for sending the transmission code rate determined with the code check determining unit to the client.
As shown from the above technical solution, server of the embodiment of the present invention passes through according to the Media Stream with Preset Transfer code check sent to client, the bandwidth that terminal where determining client is used, and according to the bandwidth of determination, it is determined that transmission code rate corresponding with the bandwidth, it can solve the problem that the reduction of the streaming media service quality of client and the problem of the waste of Internet resources caused by inconsistent of the bandwidth used in the prior art due to terminal where client and cbr (constant bit rate), the streaming media service quality of client is improved, Internet resources are saved.In addition, the sending method of Media Stream provided in an embodiment of the present invention is participated in without client so that client upgrading is not needed, so as to improve the adaptability of client;Message extra between client and server need not be increased, so as to avoid extra bandwidth cost, the performance of server is improved.Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
The schematic flow sheet of the sending method for the Media Stream that Fig. 1 provides for one embodiment of the invention;The structural representation for the server that Fig. 2 provides for another embodiment of the present invention.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
The schematic flow sheet of the sending method for the Media Stream that Fig. 1 provides for one embodiment of the invention, as shown in Fig. 1, the sending method of the Media Stream of the present embodiment can include: 101st, the bandwidth that server is used according to the Media Stream with Preset Transfer code check sent to client, terminal where determining client;
For example, in client request Media Stream, server can send the Media Stream with Preset Transfer code check to client so that server can be according to the Media Stream with Preset Transfer code check sent to client, the bandwidth that terminal where determining client is used.
For example, a video file can be divided into several video groups, each video group is with key(I) frame, being capable of independent play-out to start.In addition, for the ease of can quickly navigate to each position of video group in video file, can be in the beginning of video file, ending or the single file position using time as index for identifying each video group in video file.Wherein, used when above-mentioned index is only server selection video group, and client need not be sent to.For ease of the Switch Video between code check, the video group of different bit-rate video files is according to identical time interval cutting.
When server receive client transmission based on HTTP(HyperText Transfer Protocol, abbreviation HTTP) acquisition request message when, server first to client send with Preset Transfer code check Media Stream(There are one or several video groups of Preset Transfer code check).Wherein, acquisition request message based on HTTP can client initiated in initial access video file, or can also be client, by what is advanced or initiated during back operation, the present embodiment is to this without limiting after initial access video file.
Then, server then can be according to the Media Stream with Preset Transfer code check sent to client, the bandwidth that terminal where determining client is used.For example, the transmission control unit in server can record current point in time as sart point in time before video group is sent;Then, transmission control unit in server then starts socket (Socket) application programming interface of transmission control protocol/internet protocol (Transmission Control Protocol/Internet Protocol, abbreviation TCP/IP) of call operation system offer(Application Programming Interface, abbreviation API) send video group.ICP/IP protocol stack in server completes the transmission of video group according to TCP/IP, and after the confirmation for receiving client end response is all finished receiving, passes through input/output
The methods such as (Input/Output, abbreviation I/O) event notify the transmission control unit in server to be sent completely;Transmission control unit in server is received after notice, and record current point in time is used as end time point;Finally, the bandwidth calculation unit in server then can be according to formula(1) bandwidth that terminal where obtaining client is used, is calculated.Wherein,
The length of bandwidth=video group/(end time point-sart point in time)Formula( 1 ) It is appreciated that:In general, the video group of relatively low transmission code rate has less Slow to rush the time, if the reproduction time of a video group is shorter, in order that the bandwidth that terminal where obtaining the client of server determination is used is accurate, server continuously can send multiple video groups to client, for example, sending video group of the reproduction time more than 10 seconds at least one times.
102nd, above-mentioned server is according to above-mentioned bandwidth, it is determined that transmission code rate corresponding with above-mentioned bandwidth;Specifically, the code check for the bandwidth that terminal where the client that service implement body will can be determined less than or equal to server is used is used as transmission code rate.
For example, a width of 2 MBPS of band that terminal where client is used(Mbps), server can select transmission code rate to be less than or equal to 2Mbps.If current transmission code rate is 0.5Mbps, server then can directly determine that transmission code rate is 2Mbps;Or can also first determine that transmission code rate is 1 Mbps, transmission code rate can be avoided larger fluctuation occur.
103rd, above-mentioned server sends the Media Stream of the transmission code rate with above-mentioned determination to above-mentioned client.For example, it is assumed that the video file of terminal request can be divided into N number of video group, server have sent 5 video groups with Preset Transfer code check before 103, then, now, server can then continue to send remaining to client(N-5) the individual video group with above-mentioned transmission code rate.
Alternatively, distribution of media unit in server can be into server headend equipment send and include the adjust request of above-mentioned transmission code rate so that the Media Stream for the transmission code rate with above-mentioned determination that the above-mentioned headend equipment of above-mentioned distribution of media unit acquisition is recompiled according to above-mentioned transmission code rate;Then, above-mentioned distribution of media unit then can send above-mentioned Media Stream to above-mentioned client.The Media Stream of code check and the adjust request for including above-mentioned transmission code rate so that above-mentioned distribution of media unit obtains the Media Stream for the transmission code rate with above-mentioned determination that above-mentioned media transcoding units are changed according to above-mentioned transmission code rate;Then, above-mentioned distribution of media unit then can send above-mentioned Media Stream to above-mentioned client.The Media Stream of code check and the adjust request for including above-mentioned transmission code rate so that above-mentioned distribution of media unit obtains the Media Stream for the transmission code rate with above-mentioned determination that above-mentioned media transcoding units are changed in advance;Then, above-mentioned distribution of media unit then can send above-mentioned Media Stream to above-mentioned client.
Alternatively, server can monitor the load of the server, if the load of the server, which is more than or equal to, presets wealthy value, above-mentioned server then can send the Media Stream with Preset Transfer code check to client, so as to effectively mitigate the burden of server, it would be preferable to support more clients. The sending method of Media Stream provided in an embodiment of the present invention goes for the scene of a client, can be applicable to the scene of multiple client, and the embodiment of the present invention is not limited to the quantity of client.
In the present embodiment, server passes through according to the Media Stream with Preset Transfer code check sent to client, the bandwidth that terminal where determining client is used, and according to the bandwidth of determination, it is determined that transmission code rate corresponding with the bandwidth, so that above-mentioned server can send the Media Stream with the transmission code rate determined to client, the streaming media service quality of client is improved, Internet resources are saved.In addition, the sending method for the Media Stream that the present embodiment is provided is participated in without client so that client upgrading is not needed, so as to improve the adaptability of client;Message extra between client and server need not be increased, so as to avoid extra bandwidth cost, the performance of server is improved.
It should be noted that:For foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to the present invention, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, embodiment described in this description belongs to preferred embodiment, and involved action and the module not necessarily present invention are necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the part being described in detail in some embodiment, may refer to the associated description of other embodiment.
The structural representation for the server that Fig. 2 provides for another embodiment of the present invention, as shown in Fig. 2 the server of the present embodiment can include bandwidth determining unit 21, code check determining unit 22 and code check adjustment unit 23.Wherein, bandwidth determining unit 21 is used for the bandwidth that terminal where determining client is used;Code check determining unit 22 is used for the above-mentioned bandwidth determined according to above-mentioned bandwidth determining unit, it is determined that transmission code rate corresponding with above-mentioned bandwidth;Code check adjustment unit 23 is used for the Media Stream that the above-mentioned transmission code rate determined with above-mentioned code check determining unit is sent to above-mentioned client.
The server that the function of server can be provided by the present embodiment in the corresponding embodiment of above-mentioned Fig. 1 is realized.
Specifically, the code check determining unit 22 in the present embodiment can specifically regard the code check for the above-mentioned bandwidth that 21 are determined less than or equal to bandwidth determining unit as transmission code rate.
For example, in client request Media Stream, server can send the Media Stream with Preset Transfer code check to client, the Media Stream with Preset Transfer code check that bandwidth determining unit 21 in the present embodiment is sent according to server to client, the bandwidth that terminal where determining client is used.
For example, there is some specific transmission code rate in follow-up sent to client of code check adjustment unit 23(Example Such as:The transmission code rate that code check determining unit 22 is determined)Media Stream when, the Media Stream for the above-mentioned transmission code rate that there is code check determining unit 22 to determine that the bandwidth determining unit 21 in the present embodiment can be sent according to code check adjustment unit 23 to client, the bandwidth that terminal where determining client is used.
Alternatively, the code check adjustment unit 23 in the present embodiment can specifically send the Media Stream for the transmission code rate with above-mentioned determination that acquisition is recompiled according to above-mentioned transmission code rate to above-mentioned client.
Alternatively, the code check adjustment unit 23 in the present embodiment can also specifically send the Media Stream changed according to above-mentioned transmission code rate and obtain the transmission code rate determined with above-mentioned code check determining unit 22, and above-mentioned Media Stream to above-mentioned client.
Alternatively, the code check adjustment unit 23 in the present embodiment can also specifically send the Media Stream for the transmission code rate that there is above-mentioned code check determining unit 22 to determine that above-mentioned server is changed in advance to above-mentioned client.
Alternatively, if the load that the code check adjustment unit 23 in the present embodiment can also be further used for above-mentioned server is more than or equal to default wealthy value, the Media Stream with Preset Transfer code check is sent to above-mentioned client, so as to effectively mitigate the burden of server, it would be preferable to support more clients.
In the present embodiment, server is by bandwidth determining unit according to the Media Stream with Preset Transfer code check sent to client, the bandwidth that terminal where determining client is used, and the bandwidth determined by code check determining unit according to bandwidth determining unit, it is determined that transmission code rate corresponding with the bandwidth, so that stream, it can solve the problem that the reduction of the streaming media service quality of client and the problem of the waste of Internet resources caused by inconsistent of the bandwidth used in the prior art due to terminal where client and cbr (constant bit rate), improve the streaming media service quality of client, save Internet resources.In addition, the sending method of Media Stream provided in an embodiment of the present invention is participated in without client so that client upgrading is not needed, so as to improve the adaptability of client;Message extra between client and server need not be increased, so as to avoid extra bandwidth cost, the performance of server is improved.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,. It can be for the part that unit is shown or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are to cause a computer equipment(Can be personal computer, server, or network equipment etc.)Perform the part steps of each embodiment methods described of the invention.And foregoing storage medium includes:USB flash disk, mobile hard disk, read-only storage(Read-Only Memory, abbreviation ROM), random access memory(Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can be with the medium of store program codes.
Finally it should be noted that:The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although the present invention is described in detail with reference to the 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 technical characteristic;And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (1)

  1. Claims
    1st, a kind of sending method of Media Stream, it is characterised in that including:
    The bandwidth that server is used according to the Media Stream with Preset Transfer code check sent to client, terminal where determining client;
    The server is according to the bandwidth, it is determined that transmission code rate corresponding with the bandwidth;
    The server sends the Media Stream of the transmission code rate with the determination to the client.
    2nd, according to the method described in claim 1, it is characterised in that the server is according to the bandwidth, it is determined that transmission code rate corresponding with the bandwidth, including:
    The server regard the code check less than or equal to the bandwidth as transmission code rate.
    3rd, method according to claim 1 or 2, it is characterised in that the server sends the Media Stream of the transmission code rate with the determination to the client, including:
    The server sends the Media Stream with the transmission code rate determined that acquisition is recompiled according to the transmission code rate to the client.
    4th, method according to claim 1 or 2, it is characterised in that the server sends the Media Stream of the transmission code rate with the determination to the client, including:
    The server sends the Media Stream with the transmission code rate determined changed and obtained according to the transmission code rate to the client.
    5th, method according to claim 1 or 2, it is characterised in that the server sends the Media Stream of the transmission code rate with the determination to the client, including:
    The server sends the Media Stream for the transmission code rate with the determination that the server is changed in advance to the client.
    6th, the method according to claim 1 ~ 5 any claim, it is characterised in that methods described also includes:
    If the load of the server, which is more than or equal to, presets wealthy value, the server sends the Media Stream with Preset Transfer code check to the client.
    7th, a kind of server, it is characterised in that including:
    Bandwidth determining unit, the bandwidth used for the Media Stream with Preset Transfer code check sent according to the server to client, terminal where determining client;
    Code check determining unit, for the bandwidth determined according to the bandwidth determining unit, it is determined that transmission code rate corresponding with the bandwidth; Code check adjustment unit, the Media Stream for sending the transmission code rate determined with the code check determining unit to the client.
    8th, server according to claim 7, it is characterised in that the code check determining unit specifically for
    It regard the code check of the bandwidth determined less than or equal to the bandwidth determining unit as transmission code rate.
    9th, the server according to claim 7 or 8, it is characterised in that the code check adjustment unit is additionally operable to
    If the load of the server, which is more than or equal to, presets wealthy value, the Media Stream with Preset Transfer code check is sent to the client.
CN201180003003.5A 2011-11-18 2011-11-18 Media stream sending method and server Pending CN103650449A (en)

Applications Claiming Priority (1)

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PCT/CN2011/082455 WO2013071517A1 (en) 2011-11-18 2011-11-18 Media stream sending method and server

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CN103650449A true CN103650449A (en) 2014-03-19

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CN113542215A (en) * 2021-05-31 2021-10-22 浙江大华技术股份有限公司 Method for improving streaming media transmission performance and related device

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Application publication date: 20140319