CN104581424A - Method, related equipment and system for streaming media transmission - Google Patents
Method, related equipment and system for streaming media transmission Download PDFInfo
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- CN104581424A CN104581424A CN201310514196.1A CN201310514196A CN104581424A CN 104581424 A CN104581424 A CN 104581424A CN 201310514196 A CN201310514196 A CN 201310514196A CN 104581424 A CN104581424 A CN 104581424A
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/23805—Controlling the feeding rate to the network, e.g. by controlling the video pump
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25825—Management of client data involving client display capabilities, e.g. screen resolution of a mobile phone
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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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
- H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
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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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/845—Structuring of content, e.g. decomposing content into time segments
- H04N21/8456—Structuring of content, e.g. decomposing content into time segments by decomposing the content in the time domain, e.g. in time segments
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- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Graphics (AREA)
- Mobile Radio Communication Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a method, related equipment and a system for streaming media transmission. The method comprises the following steps: receiving a video fragment from a streaming media server; detecting the wireless network throughput rate of a mobile terminal, wherein the mobile terminal is a target receiving terminal of the video fragment; adjusting the scheduling priority of the video fragment according to the wireless network throughput rate of the mobile terminal, wherein the scheduling priority of the video fragment is lowered as the wireless network throughput rate of the mobile terminal is increased within a preset range of the wireless network throughput rate; controlling the transmission of the video fragment to the mobile terminal according to the scheduling priority of the video fragment. Through the adoption of the method, the related equipment and the system, the problem of unfair user experience can be effectively solved.
Description
Technical field
The present invention relates to stream media technology field, particularly relate to a kind of flow-medium transmission method, relevant device and system.
Background technology
Based on the dynamic self-adapting stream (DASH of HTTP, Dynamic Adaptive Streaming of HTTP) a video file cutting is multiple video slicing by technology, and distribute independently URL(uniform resource locator) (URL for each video slicing, Uniform Resource Locator,) address, for HTTP (HTTP, Hyper Text Transport Protocol) request, response and buffer memory.In addition, video file also provides various video code check.In Conventional wide band network, adopt the code check adaptive approach transmission of video burst based on terminal, that is, streaming media server issues the video slicing of particular video frequency code check to client according to the network bandwidth resources of terminal, so that client carries out the broadcasting of video file.
At present, the rise of careless mobile Internet, DASH technology is equally applicable to mobile communications network.In the mobile communication network, because network bandwidth resources is rare, therefore the network equipment adopts centralized resources allocation strategy to be that the mobile terminal that each accesses distributes suitable network bandwidth resources.
Because the network equipment adopts centralized resources allocation strategy, therefore the network bandwidth resources that each mobile terminal obtains is not quite similar, and, also may there is larger difference in the network bandwidth resources that different mobile terminal obtains, such as, the network bandwidth resources that the mobile terminal being in cell edge position obtains is less, and the network bandwidth resources that the mobile terminal being in center of housing estate position obtains is more.For the different mobile terminal that network bandwidth resources in same community differs greatly, when adopting above-mentioned client-based code check adaptive approach transmission of video burst, differing greatly of the video code rate of the video slicing that above-mentioned different mobile terminal can be made to receive, thus the fluency of above-mentioned different mobile terminal when playing video file is differed greatly, cause Consumer's Experience unjustness problem.
Summary of the invention
Embodiments provide a kind of flow-medium transmission method, relevant device and system, for solving Consumer's Experience unjustness problem.
First aspect present invention provides a kind of flow-medium transmission method, comprising:
Receive the video slicing from streaming media server;
Detect the wireless network throughput rate of mobile terminal, wherein, above-mentioned mobile terminal is the intended recipient terminal of above-mentioned video slicing;
The dispatching priority of above-mentioned video slicing is adjusted according to the wireless network throughput rate of above-mentioned mobile terminal, wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing reduces with the increase of the wireless network throughput rate of mobile terminal;
According to the dispatching priority of above-mentioned video slicing, control the transmission of above-mentioned video slicing to above-mentioned mobile terminal.
Based on first aspect present invention, in the implementation that the first is possible,
The above-mentioned wireless network throughput rate according to above-mentioned mobile terminal adjusts the dispatching priority of above-mentioned video slicing, comprising:
The dispatching priority of above-mentioned video slicing is determined according to the wireless network throughput rate of throughput rate-dispatching priority relation function and above-mentioned mobile terminal.
Based on the first possible implementation of first aspect present invention, in the implementation that the second is possible, the feature of above-mentioned throughput rate-dispatching priority relation function comprises:
The domain of definition be [0 ,+∞), codomain is [0,1];
When wireless network throughput rate value is [0, a], the dispatching priority of video slicing is constantly equal to 1;
When wireless network throughput rate value be (a, b] time, the dispatching priority of video slicing successively decreases with the increase of wireless network throughput rate;
When wireless network throughput rate value is (b ,+∞), the dispatching priority of video slicing is constantly equal to 0;
Wherein, the minimum video code rate that above-mentioned a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server.
Based on first aspect present invention, or the first possible implementation of first aspect present invention, or the implementation that the second of first aspect present invention is possible, in the implementation that the third is possible, also comprises before the video slicing of above-mentioned reception from streaming media server:
The video code rate of the video slicing that will download is selected according to current video quality;
According to the video code rate selected to above-mentioned streaming media server request video slicing.
Based on the third possible implementation of first aspect present invention, in the 4th kind of possible implementation, the above-mentioned video code rate of the video slicing that will download of selecting according to current video quality comprises:
Calculate the square value of the difference of each video code rate that above-mentioned streaming media server provides and current average video code check respectively;
Video code rate corresponding to least square values is defined as the video code rate of the video slicing that will download.
Based on first aspect present invention, or the first possible implementation of first aspect present invention, or the implementation that the second of first aspect present invention is possible, in the 5th kind of possible implementation,
The above-mentioned dispatching priority according to above-mentioned video slicing, controls the transmission of above-mentioned video slicing to above-mentioned mobile terminal, comprising:
Serving BS to above-mentioned mobile terminal sends the dispatching priority of above-mentioned video slicing and above-mentioned video slicing, make the serving BS of above-mentioned mobile terminal according to the dispatching priority of above-mentioned video slicing, send the packet of above-mentioned video slicing to above-mentioned mobile terminal.
Based on the 5th kind of possible implementation of first aspect present invention, in the 6th kind of possible implementation, if when the dispatching priority of above-mentioned video slicing is the value in interval [0,1], then:
Above-mentionedly send in the process of the packet of above-mentioned video slicing to above-mentioned mobile terminal, the dispatching priority that the packet accounting of carrying out priority scheduling in above-mentioned video slicing equals above-mentioned video slicing is multiplied by 100%.
Based on first aspect present invention, or the first possible implementation of first aspect present invention, or the implementation that the second of first aspect present invention is possible, in the 7th kind of possible implementation, when system initialization, said method also comprises:
Receive the streaming media service request message that above-mentioned mobile terminal sends, wherein, above-mentioned streaming media service request message comprises the mark of asked video flowing;
Above-mentioned streaming media service request message is forwarded to above-mentioned streaming media server;
Receive the display advertising that above-mentioned streaming media server responds according to above-mentioned streaming media service request message and describe MPD file, wherein, all video slicings of video flowing of above-mentioned MPD file for describing above-mentioned streaming media service request message and asking.
Second aspect present invention provides a kind of streaming media equipment, comprising:
First receiving element, for receiving the video slicing from streaming media server;
Detecting unit, for detecting the wireless network throughput rate of mobile terminal, wherein, above-mentioned mobile terminal is the intended recipient terminal of above-mentioned video slicing;
Priority adjustment unit, throughput rate for the wireless network of above-mentioned mobile terminal detected according to above-mentioned detecting unit adjusts the dispatching priority of above-mentioned video slicing, wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing reduces with the increase of the wireless network throughput rate of mobile terminal;
Control unit, for the dispatching priority of the above-mentioned video slicing according to above-mentioned priority adjustment unit adjustment, controls the transmission of above-mentioned video slicing to above-mentioned mobile terminal.
Based on second aspect present invention, in the implementation that the first is possible, above-mentioned priority adjustment unit specifically for: the wireless network throughput rate for the above-mentioned mobile terminal detected according to throughput rate-priority relationship function and above-mentioned detecting unit determines the priority of above-mentioned video slicing;
The feature of above-mentioned throughput rate-priority relationship function comprises:
The domain of definition be [0 ,+∞), codomain is [0,1];
When wireless network throughput rate value is [0, a], the dispatching priority of video slicing is constantly equal to 1;
When wireless network throughput rate value be (a, b] time, the dispatching priority of video slicing successively decreases with the increase of wireless network throughput rate;
When wireless network throughput rate value is (b ,+∞), the dispatching priority of video slicing is constantly equal to 0;
Wherein, the minimum video code rate that above-mentioned a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server.
Based on second aspect present invention, or the first possible implementation of second aspect present invention, in the implementation that the second is possible, above-mentioned streaming media equipment also comprises:
Code rate selection unit, for selecting the video code rate of the video slicing that will download according to current video quality;
Request unit, for according to select video code rate to above-mentioned streaming media server request video slicing.
Based on the implementation that the second of second aspect present invention is possible, in the implementation that the third is possible, above-mentioned code rate selection unit comprises:
Computation subunit, for calculating the square value of the difference of each video code rate that above-mentioned streaming media server provides and current average video code check respectively;
Chooser unit, for being defined as the video code rate of the video slicing that will download by the video code rate corresponding to least square values according to the result of calculation of above-mentioned computation subunit.
Based on second aspect present invention, or the first possible implementation of second aspect present invention, in the 4th kind of possible implementation, above-mentioned control unit specifically for: the serving BS to above-mentioned mobile terminal sends the dispatching priority of above-mentioned video slicing and above-mentioned video slicing, make the serving BS of above-mentioned mobile terminal according to the dispatching priority of above-mentioned video slicing, send the packet of above-mentioned video slicing to above-mentioned mobile terminal.
Based on second aspect present invention, or the first possible implementation of second aspect present invention, in the 5th kind of possible implementation, above-mentioned streaming media equipment also comprises:
Second receiving element, for receiving the streaming media service request message that above-mentioned mobile terminal sends, wherein, above-mentioned streaming media service request message comprises the mark of asked video flowing;
Transmitting element, for forwarding above-mentioned streaming media service request message to streaming media server;
3rd receiving element, the display advertising responded according to above-mentioned streaming media service request message for receiving above-mentioned streaming media server describes MPD file, wherein, all video slicings of video flowing of above-mentioned MPD file for describing above-mentioned streaming media service request message and asking.
Third aspect present invention provides a kind of stream media transmission system, comprising:
Streaming media equipment, streaming media server and mobile terminal;
Wherein, above-mentioned streaming media server is used for the video slicing of the various video code check being provided video file by above-mentioned streaming media equipment to above-mentioned mobile terminal;
Above-mentioned streaming media equipment is as above-mentioned second aspect, the first possible implementation of second aspect, the implementation that the second of second aspect is possible, the third possible implementation of second aspect, streaming media equipment above-mentioned any one of the 4th kind of possible implementation of second aspect and the 5th kind of possible implementation of second aspect.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
Therefore, the embodiment of the present invention is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1-a is flow-medium transmission method provided by the invention embodiment schematic flow sheet;
Fig. 1-b is throughput rate provided by the invention-dispatching priority relation function curve synoptic diagram;
Fig. 2 is another embodiment schematic flow sheet of flow-medium transmission method provided by the invention;
Fig. 3 is another embodiment schematic flow sheet of flow-medium transmission method provided by the invention;
Fig. 4 is streaming media equipment provided by the invention example structure schematic diagram;
Fig. 5 is another example structure schematic diagram of streaming media equipment provided by the invention;
Fig. 6 is another example structure schematic diagram of streaming media equipment provided by the invention;
Fig. 7 is stream media transmission system provided by the invention example structure schematic diagram.
Embodiment
Embodiments provide a kind of flow-medium transmission method, relevant device and system.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, 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 only the present invention's part embodiment, and not all embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making each other embodiments obtained under creative work prerequisite, belong to the scope of protection of the invention.
Be described a kind of flow-medium transmission method that the embodiment of the present invention provides below, refer to Fig. 1-a, the flow-medium transmission method in the embodiment of the present invention, comprising:
101, the video slicing from streaming media server is received;
In the embodiment of the present invention, video slicing refers to a video segment of cut video file.
Usually, video file is cut into the video segment of multiple 2-10 second by DASH technology, and distributes independently URL for each video segment, for HTTP request, and response, and buffer memory.For each video segment, video source (streaming media server as in the embodiment of the present invention) can provide multiple different video code rate.Such as, be the video file of 1 hour for a length, be a bit of, can be divided into 360 video segments, each video segment with 10 seconds, video source provides three kinds of different video code checks to be respectively:
1,320x240 resolution, 100kbps;
2,640x480 resolution, 500kbps;
3,640x480 resolution, 1Mbps;
Like this, from server side, this video file corresponds to 360x3=1080 different URL.Storage 1080 video slicings are needed, corresponding 1080 URL addresses in streaming media server.
Alternatively, streaming media equipment is when receiving the message of mobile terminal request video slicing, to the corresponding video slicing of streaming media server request, the corresponding video slicing that streaming media equipment receiving stream media server issues, or, initiatively will the video slicing being handed down to mobile terminal be needed to send to streaming media equipment, this video slicing is sent to this mobile terminal by streaming media equipment by streaming media server.
102, the wireless network throughput rate of mobile terminal is detected;
Wherein, above-mentioned mobile terminal is the intended recipient terminal of above-mentioned video slicing.
In embodiments of the present invention, above-mentioned mobile terminal can be the terminal of request displaying video burst, or above-mentioned mobile terminal also can be the terminal of chosen displaying video burst, is not construed as limiting herein.
The wireless network throughput rate of streaming media equipment Inspection mobile terminal.
Alternatively, streaming media equipment is by obtaining broadcasting buffer memory, any wireless network services quality (QoS of above-mentioned mobile terminal, Quality of Service) etc. information detect the wireless network throughput rate of above-mentioned mobile terminal, or, also can be detected the wireless network throughput rate of above-mentioned mobile terminal by alternate manner, the embodiment of the present invention does not limit the method for the wireless network throughput rate detecting mobile terminal.
103, the dispatching priority of above-mentioned video slicing is adjusted according to the wireless network throughput rate of above-mentioned mobile terminal;
Wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of above-mentioned video slicing reduces with the increase of the wireless network throughput rate of above-mentioned mobile terminal.
Alternatively, the wireless network throughput rate scope preset in the embodiment of the present invention is (a, b), wherein, the minimum video code rate that a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server, or, the wireless network throughput rate scope preset in the embodiment of the present invention also can be (0, + ∞), or above-mentioned wireless network throughput rate scope also can set according to actual conditions (as user's request, Consumer's Experience survey data etc.), is not construed as limiting herein.
Alternatively, when the wireless network throughput rate of above-mentioned mobile terminal is less than the minimum value within the scope of default wireless network throughput rate, the dispatching priority of above-mentioned video slicing is set to maximum threshold, when the wireless network throughput rate of above-mentioned mobile terminal is greater than the maximum within the scope of default wireless network throughput rate, the dispatching priority of above-mentioned video slicing is set to minimum threshold.Such as, as shown in Fig. 1-b, the feature of the throughput rate-dispatching priority relation function preset comprises: the domain of definition is [0, + ∞), codomain is [0,1], set when wireless network throughput rate value as [0, a] time, the dispatching priority of video slicing is constantly equal to 1, when wireless network throughput rate value is (a, b] time, the dispatching priority of video slicing successively decreases, when wireless network throughput rate value is (b with the increase of wireless network throughput rate, + ∞) time, the dispatching priority of video slicing is constantly equal to 0.Alternatively, the minimum video code rate that above-mentioned a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server, or, above-mentioned a and b also can set according to actual conditions (as user's request, Consumer's Experience survey data etc.), is not construed as limiting herein.
104, according to the dispatching priority of above-mentioned video slicing, the transmission of above-mentioned video slicing to above-mentioned mobile terminal is controlled;
Alternatively, streaming media equipment, according to the dispatching priority of above-mentioned video slicing, sends the packet of above-mentioned video slicing to above-mentioned mobile terminal by the dispatching algorithm (as Weighted Fair Queuing algorithm) preset.Or, streaming media equipment sends the dispatching priority of above-mentioned video slicing and above-mentioned video slicing to the serving BS of above-mentioned mobile terminal, make the serving BS of above-mentioned mobile terminal according to the dispatching priority of above-mentioned video slicing, the packet of above-mentioned video slicing is sent to above-mentioned mobile terminal, particularly, the serving BS of above-mentioned mobile terminal is receiving after from the above-mentioned video slicing of streaming media equipment and the dispatching priority of above-mentioned video slicing, the packet of above-mentioned video slicing can be sent to above-mentioned mobile terminal by the dispatching algorithm (as Weighted Fair Queuing algorithm) preset.
Usually, a video slicing is made up of multiple packet, when the dispatching priority of video slicing is interval [0, during value 1], send in the process of the packet of above-mentioned video slicing to above-mentioned mobile terminal at above-mentioned streaming media equipment, or send to above-mentioned mobile terminal at the serving BS of above-mentioned mobile terminal in the process of the packet of above-mentioned video slicing, the dispatching priority that the packet accounting of carrying out priority scheduling in above-mentioned video slicing equals above-mentioned video slicing is multiplied by 100%.Illustrate, suppose that the dispatching priority of above-mentioned video slicing is 0.75, then, in the process of packet sending above-mentioned video slicing to above-mentioned mobile terminal, the packet accounting of carrying out priority scheduling in above-mentioned video slicing equals 75%.
Alternatively, when system initialization, streaming media equipment obtains from streaming media server, preserve and resolve the display advertising of video file describes (MPD, Media Presentation Description) file, this MPD file is for describing all video slicings of video file, so that streaming media information knows the URL address of each video slicing of above-mentioned video file, video format, the information such as duration (as 10 seconds/sheet) and video bitrate by this MPD file.
It should be noted that, the embodiment of the present invention is described to send video slicing to a mobile terminal, when there is multiple mobile terminal, the streaming media for each mobile terminal can with reference to the flow-medium transmission method described in the embodiment of the present invention.
It should be noted that, the streaming media server in the embodiment of the present invention is specifically as follows DASH video server, and the mobile terminal in the embodiment of the present invention can be specifically mobile phone, panel computer or other moveable video playback apparatus, is not construed as limiting herein.
Therefore, the embodiment of the present invention is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.
Below with another embodiment, be described the flow-medium transmission method that the embodiment of the present invention provides, as shown in Figure 2, the flow-medium transmission method in the embodiment of the present invention, comprising:
201, the video code rate of the video slicing that will download is selected according to current video quality;
In embodiments of the present invention, because video file sends to mobile terminal to play in units of video slicing, mobile terminal is in the process of displaying video burst, can to streaming media equipment feedback video quality information, so that streaming media equipment knows current video quality in real time, and the video code rate (video code rate as next video slicing) of the video slicing that will download is selected according to current video quality, or, streaming media equipment also can detect video quality in real time, to select the video code rate of the video slicing that will download according to current video quality.
Alternatively, characterize video quality by average bit rate, when average bit rate height, video quality is good, when average bit rate is low, and poor video quality.The current average bit rate of streaming media equipment Inspection, and calculate the square value of the difference of each video code rate that above-mentioned streaming media server provides and current average video code check respectively, video code rate corresponding for the least square values calculated is defined as the video code rate of the video slicing that will download.
202, according to select video code rate to above-mentioned streaming media server request video slicing;
The video code rate that streaming media equipment is selected according to step 201, to the video slicing of above-mentioned streaming media server request corresponding video code check.
Alternatively, before system initialization, streaming media equipment obtains from streaming media server, preserve and resolve the display advertising of video file describes (MPD, Media Presentation Description), this MPD file is for describing all video slicings of video file, so that streaming media information knows the URL address of each video slicing of above-mentioned video file, video format, the information such as duration (as 10 seconds/sheet) and video bitrate by this MPD file.Streaming media equipment after selection video code rate, the URL address foradownloaded video burst of the video slicing of the corresponding video code check downloaded according to the needs that describe in MPD file.
203, the video slicing from streaming media server is received;
In the embodiment of the present invention, video slicing refers to a video segment of cut video file.
Alternatively, streaming media equipment is when receiving the message of mobile terminal request video slicing, to the corresponding video slicing of streaming media server request, the corresponding video slicing that streaming media equipment receiving stream media server issues, or, initiatively will the video slicing being handed down to mobile terminal be needed to send to streaming media equipment, this video slicing is sent to this mobile terminal by streaming media equipment by streaming media server.
204, the wireless network throughput rate of mobile terminal is detected;
Wherein, above-mentioned mobile terminal is the intended recipient terminal of above-mentioned video slicing.
In embodiments of the present invention, above-mentioned mobile terminal can be the terminal of request displaying video burst, or above-mentioned mobile terminal also can be the terminal of chosen displaying video burst, is not construed as limiting herein.
The wireless network throughput rate of streaming media equipment Inspection mobile terminal.
Alternatively, streaming media equipment detects the wireless network throughput rate of above-mentioned mobile terminal by the information such as broadcasting buffer memory, wireless network QoS obtaining above-mentioned mobile terminal, or, also can be detected the wireless network throughput rate of above-mentioned mobile terminal by alternate manner, the embodiment of the present invention does not limit the method for the wireless network throughput rate detecting mobile terminal.
205, the dispatching priority of above-mentioned video slicing is adjusted according to the wireless network throughput rate of above-mentioned mobile terminal;
Wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of above-mentioned video slicing reduces with the increase of the wireless network throughput rate of above-mentioned mobile terminal.
Alternatively, the wireless network throughput rate scope preset in the embodiment of the present invention is (a, b), wherein, the minimum video code rate that a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server, or, the wireless network throughput rate scope preset in the embodiment of the present invention also can be (0, + ∞), or above-mentioned wireless network throughput rate scope also can set according to actual conditions (as user's request, Consumer's Experience survey data etc.), is not construed as limiting herein.
Alternatively, when the wireless network throughput rate of above-mentioned mobile terminal is less than the minimum value within the scope of default wireless network throughput rate, the dispatching priority of above-mentioned video slicing is set to maximum threshold, when the wireless network throughput rate of above-mentioned mobile terminal is greater than the maximum within the scope of default wireless network throughput rate, the dispatching priority of above-mentioned video slicing is set to minimum threshold.Such as, as shown in Fig. 1-b, the feature presetting throughput rate-dispatching priority relation function comprises: the domain of definition is [0, + ∞), codomain is [0,1], set when wireless network throughput rate value as [0, a] time, the dispatching priority of video slicing is constantly equal to 1, when wireless network throughput rate value is (a, b] time, the dispatching priority of video slicing successively decreases, when wireless network throughput rate value is (b with the increase of wireless network throughput rate, + ∞) time, the dispatching priority of video slicing is constantly equal to 0.Alternatively, the minimum video code rate that above-mentioned a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server, or, above-mentioned a and b also can set according to actual conditions (as user's request, Consumer's Experience survey data etc.), is not construed as limiting herein.
206, according to the dispatching priority of above-mentioned video slicing, the transmission of above-mentioned video slicing to above-mentioned mobile terminal is controlled;
Alternatively, streaming media equipment, according to the dispatching priority of above-mentioned video slicing, sends the packet of above-mentioned video slicing to above-mentioned mobile terminal by the dispatching algorithm (as Weighted Fair Queuing algorithm) preset.Or, streaming media equipment sends the dispatching priority of above-mentioned video slicing and above-mentioned video slicing to the serving BS of above-mentioned mobile terminal, make the serving BS of above-mentioned mobile terminal according to the dispatching priority of above-mentioned video slicing, the packet of above-mentioned video slicing is sent to above-mentioned mobile terminal, particularly, the serving BS of above-mentioned mobile terminal is receiving after from the above-mentioned video slicing of streaming media equipment and the dispatching priority of above-mentioned video slicing, the packet of above-mentioned video slicing can be sent to above-mentioned mobile terminal by the dispatching algorithm (as Weighted Fair Queuing algorithm) preset.
Usually, a video slicing is made up of multiple packet, when the dispatching priority of video slicing is interval [0, during value 1], send in the process of the packet of above-mentioned video slicing to above-mentioned mobile terminal at above-mentioned streaming media equipment, or send to above-mentioned mobile terminal at the serving BS of above-mentioned mobile terminal in the process of the packet of above-mentioned video slicing, the dispatching priority that the packet accounting of carrying out priority scheduling in above-mentioned video slicing equals above-mentioned video slicing is multiplied by 100%.Illustrate, suppose that the dispatching priority of above-mentioned video slicing is 0.75, then, in the process of packet sending above-mentioned video slicing to above-mentioned mobile terminal, the packet accounting of carrying out priority scheduling in above-mentioned video slicing equals 75%.
Alternatively, before system initialization, streaming media equipment obtains from streaming media server, preserve and resolve the display advertising of video file describes (MPD, Media Presentation Description), this MPD file is for describing all video slicings of video file, so that streaming media equipment knows the URL address of each video slicing of above-mentioned video file, video format, the information such as duration (as 10 seconds/sheet) and video bitrate by this MPD file.
Alternatively, when the first video slicing of downloading video files, carry out according to the video code rate of acquiescence the video slicing downloading corresponding video code check.
It should be noted that, the embodiment of the present invention is described to send video slicing to a mobile terminal, when there is multiple mobile terminal, the streaming media for each mobile terminal can with reference to the flow-medium transmission method described in the embodiment of the present invention.
It should be noted that, the streaming media server in the embodiment of the present invention is specifically as follows DASH video server, and the mobile terminal in the embodiment of the present invention can be specifically mobile phone, panel computer or other moveable video playback apparatus, is not construed as limiting herein.
Therefore, the embodiment of the present invention is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.Further, the embodiment of the present invention selects the video code rate of the video slicing that will download according to current video quality, limit when Streaming Media Continuous Play, the situation of video quality big ups and downs.
Below for mobile terminal request streaming media service, be described the flow-medium transmission method that the embodiment of the present invention provides, as shown in Figure 3, the flow-medium transmission method in the embodiment of the present invention, comprising:
301, the streaming media service request message of mobile terminal receive transmission;
Wherein, above-mentioned streaming media service request message comprises the mark of asked video file.
Alternatively, video flowing be designated video file name, video file numbering or video file code etc.
302, above-mentioned streaming media service request message is forwarded to streaming media server;
This streaming media service request message, after the streaming media service request message receiving mobile terminal transmission, is transmitted to streaming media server by streaming media equipment.
303, the MPD file that above-mentioned streaming media server responds according to above-mentioned streaming media service request message is received;
Wherein, all video slicings of video flowing of above-mentioned MPD file for describing above-mentioned streaming media service request message and asking.
In embodiments of the present invention, when streaming media server receives the streaming media service request message from streaming media equipment, the MPD file describing all video slicings of video flowing that above-mentioned streaming media service request message is asked is sent to streaming media equipment by streaming media server, so that streaming media equipment knows the information such as the URL address of each video slicing of above-mentioned mobile terminal request video file, video format, duration (as 10 seconds/sheet) and video bitrate by this MPD file.
Step 304 ~ 309 with reference to the description in step 201 ~ 206 in embodiment illustrated in fig. 2, can repeat no more herein.
310, last video slicing of whether downloading video files is detected;
Whether streaming media equipment Inspection has obtained last video slicing of above-mentioned video file from streaming media server, if last video slicing of downloading video files, then, alternatively, perform step 311, or, immediately or wait for scheduled duration or terminate this flow process when receiving triggering command; If last video slicing of non-downloading video files, then return step 304, continue download and the transmission processing of next video file.
311, to the information that mobile terminal feedback instruction video file is sent.
Alternatively, when the first video slicing of downloading video files, download the video slicing of corresponding video code check according to the video code rate of acquiescence.
It should be noted that, the embodiment of the present invention is described to send video slicing to a mobile terminal, when there is multiple mobile terminal, the streaming media for each mobile terminal can with reference to the flow-medium transmission method described in the embodiment of the present invention.
It should be noted that, in the embodiment of the present invention, also directly can be issued the video slicing of default video code check by streaming media server to streaming media equipment, then step 304 ~ 311 can be replaced embodiment illustrated in fig. 1 in 101 ~ 104.
It should be noted that, the streaming media server in the embodiment of the present invention is specifically as follows DASH video server, and the mobile terminal in the embodiment of the present invention can be specifically mobile phone, panel computer or other moveable video playback apparatus, is not construed as limiting herein.
Therefore, the embodiment of the present invention is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.Further, the embodiment of the present invention selects the video code rate of the video slicing that will download according to current video quality, limit when Streaming Media Continuous Play, the situation of video quality big ups and downs.
The embodiment of the present invention additionally provides a kind of streaming media equipment, and as shown in Figure 4, streaming media equipment 400, comprising:
First receiving element 401, for receiving the video slicing from streaming media server.
Detecting unit 402, for detecting the wireless network throughput rate of mobile terminal, wherein, above-mentioned mobile terminal is the intended recipient terminal of above-mentioned video slicing;
Alternatively, detecting unit 402 detects the wireless network throughput rate of above-mentioned mobile terminal by the information such as broadcasting buffer memory, wireless network QoS obtaining above-mentioned mobile terminal, or, detecting unit 402 also can detect the wireless network throughput rate of above-mentioned mobile terminal by alternate manner, the embodiment of the present invention does not detect the wireless network throughput rate of mobile terminal method to detecting unit 402 limits.
Priority adjustment unit 403, throughput rate for the wireless network of above-mentioned mobile terminal detected according to detecting unit 402 adjusts the dispatching priority of above-mentioned video slicing, wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing reduces with the increase of the wireless network throughput rate of mobile terminal.
Control unit 404, for the dispatching priority of above-mentioned video slicing adjusted according to priority adjustment unit 403, controls the transmission of above-mentioned video slicing to above-mentioned mobile terminal;
Alternatively, control unit 404 specifically for: the dispatching priority sending above-mentioned video slicing and above-mentioned video slicing to base station, makes base station according to the dispatching priority of above-mentioned video slicing, sends the packet of above-mentioned video slicing to above-mentioned mobile terminal.
Alternatively, priority adjustment unit 403, the wireless network throughput rate specifically for the above-mentioned mobile terminal detected according to throughput rate-priority relationship function and detecting unit 402 determines the priority of above-mentioned video slicing; Wherein, the feature of above-mentioned throughput rate-priority relationship function comprises: the domain of definition for [0 ,+∞), codomain is [0,1]; When wireless network throughput rate value is [0, a], the dispatching priority of video slicing is constantly equal to 1; When wireless network throughput rate value be (a, b] time, the dispatching priority of video slicing successively decreases with the increase of wireless network throughput rate; When wireless network throughput rate value is (b ,+∞), the dispatching priority of video slicing is constantly equal to 0; Wherein, the minimum video code rate that above-mentioned a provides for above-mentioned streaming media server, the maximum video code rate that above-mentioned b provides for above-mentioned streaming media server.
Alternatively, on the basis of Fig. 4 institute embodiment, as shown in Figure 5, streaming media equipment 500 also comprises: code rate selection unit 405, for selecting the video code rate of the video slicing that will download according to current video quality; Request unit 406, for the video code rate selected according to code rate selection unit 405 to above-mentioned streaming media server request video slicing.
Alternatively, code rate selection unit 405 comprises: computation subunit, for calculating the square value of the difference of each video code rate that above-mentioned streaming media server provides and current average video code check respectively; Chooser unit, for being defined as the video code rate of the video slicing that will download by the video code rate corresponding to least square values according to the result of calculation of above-mentioned computation subunit.
Alternatively, the streaming media equipment in the embodiment of the present invention also comprises: the second receiving element, and for receiving the streaming media service request message that above-mentioned mobile terminal sends, wherein, above-mentioned streaming media service request message comprises the mark of asked video flowing; Transmitting element, for forwarding above-mentioned streaming media service request message to streaming media server; 3rd receiving element, the display advertising responded according to above-mentioned streaming media service request message for receiving above-mentioned streaming media server describes MPD file, wherein, all video slicings of video flowing of above-mentioned MPD file for describing above-mentioned streaming media service request message and asking.
It should be noted that, the streaming media server in the embodiment of the present invention is specifically as follows DASH video server, and the mobile terminal in the embodiment of the present invention can be specifically mobile phone, panel computer or other moveable video playback apparatus, is not construed as limiting herein.
It should be noted that, streaming media equipment in the embodiment of the present invention can as the streaming media equipment in above-mentioned embodiment of the method, may be used for the whole technical schemes realized in said method embodiment, the function of its each functional module can according to the method specific implementation in said method embodiment, its specific implementation process can refer to the associated description in above-described embodiment, repeats no more herein.
Therefore, embodiment of the present invention streaming media equipment is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.Further, the embodiment of the present invention selects the video code rate of the video slicing that will download according to current video quality, limit when Streaming Media Continuous Play, the situation of video quality big ups and downs.
The embodiment of the present invention also provides a kind of computer-readable storage medium, and wherein, this computer-readable storage medium has program stored therein, and this program performs and comprises in said method embodiment the part or all of layout recorded.
Be described the equipment that the another kind in the invention process is applied to peer-to-peer network below, refer to Fig. 6, the streaming media equipment 600 in the embodiment of the present invention comprises:
The quantity of the processor 604 of input unit 601, output device 602, memory 603 and processor 604(streaming media equipment 600 can be one or more, and Fig. 6 is for a processor).In some embodiments of the invention, input unit 601, output device 602, memory 603 and processor 604 can be connected by bus or alternate manner, are to be connected by bus as shown in Figure 6.Wherein, be used in memory 603 storing the data inputted from input unit 601, and the information such as the necessary file of processor 604 deal with data can also be stored; Input unit 601 and output device 602 can comprise the port of streaming media equipment 600 and other devices communicatings, and the external output equipment of streaming media equipment 600 such as display, keyboard, mouse and printer etc. can also be comprised, input unit 601 can comprise mouse and keyboard etc. particularly, and output device 602 can comprise display etc., be antenna and/or the communications cable with the port of other devices communicatings in input unit 601 and output device 602 in the present embodiment.
Wherein, processor 604 performs following steps:
Receive the video slicing from streaming media server;
Detect the wireless network throughput rate of mobile terminal, wherein, above-mentioned mobile terminal is the intended recipient terminal of above-mentioned video slicing;
The dispatching priority of above-mentioned video slicing is adjusted according to the wireless network throughput rate of above-mentioned mobile terminal, wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of above-mentioned video slicing reduces with the increase of the wireless network throughput rate of above-mentioned mobile terminal;
According to the dispatching priority of above-mentioned video slicing, control the transmission of above-mentioned video slicing to above-mentioned mobile terminal;
Alternatively, processor 604, according to the dispatching priority of above-mentioned video slicing, sends the packet of above-mentioned video slicing to above-mentioned mobile terminal by the dispatching algorithm (as Weighted Fair Queuing algorithm) preset.Or, processor 604 sends the dispatching priority of above-mentioned video slicing and above-mentioned video slicing to the serving BS of above-mentioned mobile terminal, make the serving BS of above-mentioned mobile terminal according to the dispatching priority of above-mentioned video slicing, the packet of above-mentioned video slicing is sent to above-mentioned mobile terminal, particularly, the serving BS of above-mentioned mobile terminal is receiving after from the above-mentioned video slicing of streaming media equipment and the dispatching priority of above-mentioned video slicing, the packet of above-mentioned video slicing can be sent to above-mentioned mobile terminal by the dispatching algorithm (as Weighted Fair Queuing algorithm) preset.
Alternatively, processor 604 also for: when system initialization, obtain, preserve and resolve the MPD file of video file from streaming media server, this MPD file is for describing all video slicings of video file, so that streaming media information knows the URL address of each video slicing of above-mentioned video file, video format, the information such as duration (as 10 seconds/sheet) and video bitrate by this MPD file.
It should be noted that, the streaming media server in the embodiment of the present invention is specifically as follows DASH video server, and the mobile terminal in the embodiment of the present invention can be specifically mobile phone, panel computer or other moveable video playback apparatus, is not construed as limiting herein.
It should be noted that, streaming media equipment in the embodiment of the present invention can as the streaming media equipment in above-mentioned embodiment of the method, may be used for the whole technical schemes realized in said method embodiment, the function of its each functional module can according to the method specific implementation in said method embodiment, its specific implementation process can refer to the associated description in above-described embodiment, repeats no more herein.
Therefore, embodiment of the present invention streaming media equipment is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.
The embodiment of the present invention also provides a kind of stream media transmission system, and as shown in Figure 7, the stream media transmission system 700 in the embodiment of the present invention comprises:
Streaming media equipment 701, streaming media server 702 and mobile terminal 703.
Wherein, streaming media server 702 is for providing the video slicing of the various video code check of video file to mobile terminal 703 by streaming media equipment 701.
Alternatively, streaming media equipment 701 is connected by cable network with streaming media server 702, adopt wire transmission control protocol (TCP, Transmission Control Protocol) mode carries out communication, streaming media equipment 701 is connected by wireless network with mobile terminal 703, uses wireless tcp mode to carry out communication.
Alternatively, streaming media equipment 701 realizes information interaction by the serving BS of mobile terminal 703 and mobile terminal 703.
Streaming media equipment 701 in the embodiment of the present invention can as the streaming media equipment in above-mentioned embodiment of the method, may be used for the whole technical schemes realized in said method embodiment, the function of its each functional module can according to the method specific implementation in said method embodiment, its specific implementation process can refer to the associated description in above-described embodiment, repeats no more herein.
Therefore, in the stream media transmission system of the embodiment of the present invention, streaming media equipment is by detecting the wireless network throughput rate of mobile terminal, according to the dispatching priority of the wireless network throughput rate adjustment video slicing of mobile terminal, and, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing is reduced with the increase of the wireless network throughput rate of mobile terminal, due to the different mobile terminal that network bandwidth resources differs greatly, the difference of its wireless network throughput rate is also inevitable larger, therefore, pass through the embodiment of the present invention, the dispatching priority of the video slicing of the mobile terminal that wireless network throughput rate is lower can be made higher, thus can the video slicing of the lower mobile terminal of priority scheduling wireless network throughput rate, reduce the difference of the fluency of above-mentioned different mobile terminal when playing video file, solve the problem of Consumer's Experience unjustness.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
Above a kind of flow-medium transmission method provided by the present invention, relevant device and system are described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (15)
1. a flow-medium transmission method, is characterized in that, comprising:
Receive the video slicing from streaming media server;
Detect the wireless network throughput rate of mobile terminal, wherein, described mobile terminal is the intended recipient terminal of described video slicing;
The dispatching priority of described video slicing is adjusted according to the wireless network throughput rate of described mobile terminal, wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing reduces with the increase of the wireless network throughput rate of mobile terminal;
According to the dispatching priority of described video slicing, control the transmission of described video slicing to described mobile terminal.
2. method according to claim 1, is characterized in that, the described wireless network throughput rate according to described mobile terminal adjusts the dispatching priority of described video slicing, comprising:
The dispatching priority of described video slicing is determined according to the wireless network throughput rate of throughput rate-dispatching priority relation function and described mobile terminal.
3. method according to claim 2, is characterized in that, the feature of described throughput rate-dispatching priority relation function comprises:
The domain of definition be [0 ,+∞), codomain is [0,1];
When wireless network throughput rate value is [0, a], the dispatching priority of video slicing is constantly equal to 1;
When wireless network throughput rate value be (a, b] time, the dispatching priority of video slicing successively decreases with the increase of wireless network throughput rate;
When wireless network throughput rate value is (b ,+∞), the dispatching priority of video slicing is constantly equal to 0;
Wherein, the minimum video code rate that described a provides for described streaming media server, the maximum video code rate that described b provides for described streaming media server.
4. the method according to any one of claims 1 to 3, is characterized in that, also comprises before the video slicing of described reception from streaming media server:
The video code rate of the video slicing that will download is selected according to current video quality;
According to the video code rate selected to described streaming media server request video slicing.
5. method according to claim 4, is characterized in that, the described video code rate of the video slicing that will download of selecting according to current video quality comprises:
Calculate the square value of the difference of each video code rate that described streaming media server provides and current average video code check respectively;
Video code rate corresponding to least square values is defined as the video code rate of the video slicing that will download.
6. the method according to any one of claims 1 to 3, is characterized in that, the described dispatching priority according to described video slicing, controls the transmission of described video slicing to described mobile terminal, comprising:
Serving BS to described mobile terminal sends the dispatching priority of described video slicing and described video slicing, make the serving BS of described mobile terminal according to the dispatching priority of described video slicing, send the packet of described video slicing to described mobile terminal.
7. method according to claim 6, is characterized in that,
If when the dispatching priority of described video slicing is the value in interval [0,1], then:
Describedly send in the process of the packet of described video slicing to described mobile terminal, the dispatching priority that the packet accounting of carrying out priority scheduling in described video slicing equals described video slicing is multiplied by 100%.
8. the method according to any one of claims 1 to 3, is characterized in that, when system initialization, described method also comprises:
Receive the streaming media service request message that described mobile terminal sends, wherein, described streaming media service request message comprises the mark of asked video flowing;
Described streaming media service request message is forwarded to described streaming media server;
Receive the display advertising that described streaming media server responds according to described streaming media service request message and describe MPD file, wherein, all video slicings of video flowing of described MPD file for describing described streaming media service request message and asking.
9. a streaming media equipment, is characterized in that, comprising:
First receiving element, for receiving the video slicing from streaming media server;
Detecting unit, for detecting the wireless network throughput rate of mobile terminal, wherein, described mobile terminal is the intended recipient terminal of described video slicing;
Priority adjustment unit, throughput rate for the wireless network of described mobile terminal detected according to described detecting unit adjusts the dispatching priority of described video slicing, wherein, within the scope of the wireless network throughput rate preset, the dispatching priority of video slicing reduces with the increase of the wireless network throughput rate of mobile terminal;
Control unit, for the dispatching priority of the described video slicing according to described priority adjustment unit adjustment, controls the transmission of described video slicing to described mobile terminal.
10. streaming media equipment according to claim 9, it is characterized in that, described priority adjustment unit specifically for: the wireless network throughput rate for the described mobile terminal detected according to throughput rate-priority relationship function and described detecting unit determines the priority of described video slicing;
The feature of described throughput rate-priority relationship function comprises:
The domain of definition be [0 ,+∞), codomain is [0,1];
When wireless network throughput rate value is [0, a], the dispatching priority of video slicing is constantly equal to 1;
When wireless network throughput rate value be (a, b] time, the dispatching priority of video slicing successively decreases with the increase of wireless network throughput rate;
When wireless network throughput rate value is (b ,+∞), the dispatching priority of video slicing is constantly equal to 0;
Wherein, the minimum video code rate that described a provides for described streaming media server, the maximum video code rate that described b provides for described streaming media server.
11. streaming media equipment according to claim 9 or 10, is characterized in that,
Described streaming media equipment also comprises:
Code rate selection unit, for selecting the video code rate of the video slicing that will download according to current video quality;
Request unit, for according to select video code rate to described streaming media server request video slicing.
12. streaming media equipment according to claim 11, is characterized in that, described code rate selection unit comprises:
Computation subunit, for calculating the square value of the difference of each video code rate that described streaming media server provides and current average video code check respectively;
Chooser unit, for being defined as the video code rate of the video slicing that will download by the video code rate corresponding to least square values according to the result of calculation of described computation subunit.
13. streaming media equipment according to claim 9 or 10, is characterized in that,
Described control unit specifically for: the serving BS to described mobile terminal sends the dispatching priority of described video slicing and described video slicing, make the serving BS of described mobile terminal according to the dispatching priority of described video slicing, send the packet of described video slicing to described mobile terminal.
14. streaming media equipment according to claim 9 or 10, it is characterized in that, described streaming media equipment also comprises:
Second receiving element, for receiving the streaming media service request message that described mobile terminal sends, wherein, described streaming media service request message comprises the mark of asked video flowing;
Transmitting element, for forwarding described streaming media service request message to streaming media server;
3rd receiving element, the display advertising responded according to described streaming media service request message for receiving described streaming media server describes MPD file, wherein, all video slicings of video flowing of described MPD file for describing described streaming media service request message and asking.
15. 1 kinds of stream media transmission systems, is characterized in that, comprising:
Streaming media equipment, streaming media server and mobile terminal;
Wherein, described streaming media server is used for the video slicing of the various video code check being provided video file by described streaming media equipment to described mobile terminal;
The streaming media equipment of described streaming media equipment as described in any one of claim 9 to 14.
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