CN110049355A - Method for broadcasting multimedia file and device - Google Patents
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- CN110049355A CN110049355A CN201810044029.8A CN201810044029A CN110049355A CN 110049355 A CN110049355 A CN 110049355A CN 201810044029 A CN201810044029 A CN 201810044029A CN 110049355 A CN110049355 A CN 110049355A
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Classifications
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
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- 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
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- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
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Landscapes
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Abstract
Present disclose provides a kind of method for broadcasting multimedia file and devices, belong to network technique field.The described method includes: obtaining the first index file of multimedia file when receiving the index file acquisition request of terminal, the first index file includes the address of all code rates of the multimedia file and the slicing files of all code rates；Obtain the highest code rate that the terminal is supported；According to the highest code rate that the terminal is supported, the address of the slicing files of specified code rate and specified code rate is deleted from the first index file, obtains the second index file, and the specified code rate is higher than the highest code rate；Second index file is sent to the terminal, the second index file plays out the multimedia file according to the second index file for the terminal.The disclosure is lower than the highest code rate that terminal is supported by the code rate that control is supplied in the index file of terminal, and avoiding leads to the problem of result of broadcast difference since the code rate of terminal selection slicing files is excessive.
Description
Technical field
This disclosure relates to network technique field, in particular to a kind of method for broadcasting multimedia file and device.
Background technique
With the development of network technology, network direct broadcasting platform gradually rises, and network direct broadcasting platform can provide various live streamings
Program, such as live news, sports event live broadcast, TV play live streaming, variety show live streaming.When user wants viewing, some is straight
When broadcasting program, the corresponding multimedia file of the programme televised live can be played at the terminal.
Currently, the method for terminal plays multimedia file is as follows: terminal to server, which is sent, plays some multimedia file
Request, server upon receiving the request, can send the index file of the multimedia file, the index file to terminal
In contain the address of all code rates of the multimedia file and the slicing files of each code rate.Terminal is receiving the index
, can be according to current Wireless Fidelity (Wireless Fidelity, WiFi) bandwidth after file, the institute that indexed file includes
Have in code rate, the code rate that selection matches with the WiFi bandwidth, and the address of the slicing files according to the code rate, downloads the code rate
Slicing files play out.In addition, terminal can be time-consuming according to the downloading of the slicing files of the code rate, to select downloading different
Next slicing files of code rate, such as when slicing files downloading is time-consuming larger, terminal can attempt choosing in all code rates
Next slicing files of downloading more low bit- rate are selected to play out；When slicing files downloading is time-consuming smaller, terminal can be with
In all code rates, attempts selection and download next slicing files of higher code rate to play out, closed until adjusting to one
Suitable code rate, for example, the suitable code rate refers to the time-consuming code rate for preset threshold of downloading.
In implementing the present disclosure, inventor find the relevant technologies the prior art has at least the following problems:
For above-mentioned technology during playing multimedia file, terminal is all according to include in the index file received
Code rate continuously attempts to that the slicing files of different code rates is selected to be downloaded, if the code rate of selection is excessive, such as larger than terminal is supported
Highest code rate, then it is poor to will lead to result of broadcast.
Summary of the invention
The embodiment of the present disclosure provides a kind of method for broadcasting multimedia file and device, can solve the relevant technologies and plays effect
The problem of fruit difference.The technical solution is as follows:
In a first aspect, providing a kind of method for broadcasting multimedia file, which comprises
When receiving the index file acquisition request of terminal, the first index file of multimedia file is obtained, described
One index file includes the address of all code rates of the multimedia file and the slicing files of all code rates；
Obtain the highest code rate that the terminal is supported；
According to the highest code rate that the terminal is supported, specified code rate and the finger are deleted from first index file
The address of the slicing files of constant bit rate, obtains the second index file, and the specified code rate is higher than the highest code rate；
Second index file is sent to the terminal, second index file is for the terminal according to
Second index file plays out the multimedia file.
The method that the embodiment of the present disclosure provides, the highest code rate supported by obtaining terminal, and according to the highest code rate pair
Code rate in index file is adjusted, so that the code rate in the index file that terminal receives is lower than the highest code that terminal is supported
Rate, the slicing files for avoiding the highest code rate that terminal selection code rate is greater than terminal support are downloaded and cause result of broadcast poor
The problem of.
In a kind of possible implementation, the highest code rate for obtaining the terminal and supporting, comprising:
Obtain the business information of the terminal；
According to the business information of the terminal, the highest code rate that the terminal is supported is obtained.
The method that the embodiment of the present disclosure provides, the highest code rate that terminal is supported can be obtained according to the business information of terminal,
The code rate of different terminals is limited to realize to be customized according to Carrier Requirements, it is different to be controllable to different charge users offers
The multimedia file of grade plays service.
In a kind of possible implementation, the business information according to the terminal obtains the terminal and supports most
High code rate, comprising:
According to the business information of the terminal, the grade of service of the terminal is determined；
According to the grade of service of the terminal, the highest code rate that the terminal is supported is determined, the different grades of service is corresponding
Different highest code rates.
The method that the embodiment of the present disclosure provides determines the grade of service by the business information of terminal, and then determines terminal branch
The highest code rate held provides a kind of implementation that highest code rate is obtained according to business information.
In a kind of possible implementation, the highest code rate for obtaining the terminal and supporting, comprising:
Obtain the performance information of the affiliated gateway of the terminal, the connected router of the terminal or base station；
According to the performance information, the highest code rate that the terminal is supported is determined.
The embodiment of the present disclosure provide method, terminal support highest code rate can according to the affiliated gateway of terminal, connected
Router or the performance information of base station obtain, to more accurately provide available code rate for terminal.
In a kind of possible implementation, the performance information includes the side wide area network (Wide Area Network, WAN)
Unicast available bandwidth, WAN side multicast available bandwidth, central processing unit (Central Processing Unit, CPU) occupy ratio
At least one of in example, EMS memory occupation ratio and terminal side available bandwidth.
The method that the embodiment of the present disclosure provides, the highest code rate that terminal is supported can be according to WAN side available bandwidth, WAN side
At least one in multicast available bandwidth, CPU occupation proportion, EMS memory occupation ratio and terminal side available bandwidth obtains, and provides
A kind of implementation obtaining highest code rate.
It is described that the highest code rate that the terminal is supported is determined according to the performance information in a kind of possible implementation,
Include:
It will appoint in the WAN side unicast available bandwidth, the WAN side multicast available bandwidth and the terminal side available bandwidth
One highest code rate supported as the terminal；Or,
According to the duration of the EMS memory occupation ratio, the caching number of slicing files and each slicing files, institute is determined
State the highest code rate of terminal support；Or,
Corresponding pass according to needed for the CPU occupation proportion and forwarding slicing files between CPU occupation proportion and code rate
System determines the highest code rate that the terminal is supported；Or,
By in the WAN side unicast available bandwidth, the WAN side multicast available bandwidth and the terminal side available bandwidth extremely
Few two are weighted summation, obtain the highest code rate that the terminal is supported.
The method that the embodiment of the present disclosure provides, the highest code rate that terminal is supported can be according to WAN side available bandwidth or terminal
Side available bandwidth obtains, and can also be obtained according to CPU occupation proportion or EMS memory occupation ratio, provide a kind of acquisition highest code rate
Implementation.
In a kind of possible implementation, it is described according to the EMS memory occupation ratio, the caching number of slicing files and
The duration of each slicing files determines the highest code rate that the terminal is supported, comprising:
According to the EMS memory occupation ratio, free memory is determined；
According to the duration of the free memory, the caching number of slicing files and each slicing files, determination can be cached
Highest code rate；
The highest code rate that the cacheable highest code rate is supported as the terminal.
The method that the embodiment of the present disclosure provides, the highest code rate that terminal is supported can be according to EMS memory occupation ratios, fragment text
The caching number of part and the duration of each slicing files obtain, and provide a kind of implementation for obtaining highest code rate.
In a kind of possible implementation, the CPU according to needed for the CPU occupation proportion and forwarding slicing files is accounted for
With the corresponding relationship between ratio and code rate, the highest code rate that the terminal is supported is determined, comprising:
According to the CPU occupation proportion, residue CPU occupation proportion is determined；
According to the residue CPU occupation proportion and the corresponding relationship, it is corresponding to obtain the residue CPU occupation proportion
Code rate；
The highest code rate that the corresponding code rate of the residue CPU occupation proportion is supported as the terminal.
The method that the embodiment of the present disclosure provides, the highest code rate that terminal is supported can be according to CPU occupation proportion and forwarding
Corresponding relationship between CPU occupation proportion and code rate needed for slicing files obtains, and provides a kind of realization for obtaining highest code rate
Mode.
Second aspect provides a kind of multimedia file playing device, and described device includes multiple functional modules, described more
A functional module is for executing method for broadcasting multimedia file provided by above-mentioned first aspect and its any is able to achieve
Mode.
The third aspect provides a kind of electronic equipment, which includes: transceiver, memory and processor.Its
In, the transceiver, the memory and the processor are communicated with each other by internal connecting path, the memory for storing instruction,
The processor is used to execute the instruction of memory storage, receives signal to control transceiver, and control transceiver and send signal,
And when the processor executes the instruction of memory storage, which makes the processor execute first aspect or the
Method for broadcasting multimedia file in any possible implementation of one side.
Fourth aspect provides a kind of computer readable storage medium, is stored in the computer readable storage medium
Computer program, the computer program are loaded by processor and are executed any to realize above-mentioned first aspect or first aspect
Method for broadcasting multimedia file in the possible implementation of kind.
Detailed description of the invention
Fig. 1 is a kind of system structure diagram that the embodiment of the present disclosure provides.
Fig. 2 is a kind of structural schematic diagram for terminal 200 that the embodiment of the present disclosure provides.
Fig. 3 is the structural schematic diagram for a kind of electronic equipment 300 that the embodiment of the present disclosure provides.
Fig. 4 is a kind of flow chart for method for broadcasting multimedia file that the embodiment of the present disclosure provides.
Fig. 5 is a kind of structural schematic diagram for multimedia file playing device that the embodiment of the present disclosure provides.
Specific embodiment
Fig. 1 is a kind of system structure diagram that the embodiment of the present disclosure provides.Referring to Fig. 1, which includes: end
End, business platform (Service Platform) server, customer premises equipment, CPE (Customer Premise Equipment,
CPE), (Multicast of Adaptive Bit the Rate Controller, M- of the adaptive rate control device based on multicast
ABR Controller), content distributing network (Content Delivery Network, CDN) server and multiple digital version
Power management (Multi-Digital Rights Management, MultiDRM) server.
Wherein, specified application is installed, which can be player (Player), which is used in terminal
Play multimedia file；Business platform server is for providing the uniform resource locator (Uniform of multimedia file
Resource Locator, URL) address；Cpe device can be the affiliated gateway of terminal (Gateway), the connected router of terminal
Or base station, for example, home gateway (Home Gateway), the enterprise couple in router (Access of coaxial cable uplink
Router), edge router (Edge Router) or wireless base station (Wireless Basestation) etc., can on cpe device
Turned unicast agent (Multicast to Unicast agent, M2U agent) with being deployed with multicast, which can be with
It is an application software；M-ABR Controller is for controlling the multimedia file transmission based on multicast；CDN server is used for
The slicing files of multimedia file are provided；MultiDRM server is for providing the solution confidential information of slicing files.
Fig. 2 is a kind of structural schematic diagram for terminal 200 that the embodiment of the present disclosure provides, which can be used for executing following
The method for broadcasting multimedia file provided in each embodiment.Referring to fig. 2, which includes:
Terminal 200 may include radio frequency (Radio Frequency, RF) circuit 110, include one or more meter
Memory 120, input unit 130, display unit 140, sensor 150, the voicefrequency circuit 160, nothing of calculation machine readable storage medium storing program for executing
Line fidelity (Wireless Fidelity, WiFi) module 170, the processor for including one or more than one processing core
The components such as 180 and power supply 190.It will be understood by those skilled in the art that terminal structure shown in Figure 2 was not constituted to end
The restriction at end may include perhaps combining certain components or different component layouts than illustrating more or fewer components.
Wherein:
RF circuit 110 can be used for receiving and sending messages or communication process in, signal sends and receivees, particularly, by base station
After downlink information receives, one or the processing of more than one processor 180 are transferred to；In addition, the data for being related to uplink are sent to
Base station.In general, RF circuit 110 includes but is not limited to antenna, at least one amplifier, tuner, one or more oscillators, uses
Family identity module (SIM) card, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplex
Device etc..In addition, RF circuit 110 can also be communicated with network and other equipment by wireless communication.The wireless communication can make
With any communication standard or agreement, including but not limited to global system for mobile communications (Global System of
Mobilecommunication, GSM), general packet radio service (General Packet Radio Service, GPRS),
CDMA (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code
Division Multiple Access, WCDMA), it is long term evolution (Long Term Evolution, LTE), Email, short
Messaging service (Short Messaging Service, SMS) etc..
Memory 120 can be used for storing software program and module, and processor 180 is stored in memory 120 by operation
Software program and module, thereby executing various function application and data processing.Memory 120 can mainly include storage journey
Sequence area and storage data area, wherein storing program area can the (ratio of application program needed for storage program area, at least one function
Such as sound-playing function, image player function) etc.；Storage data area, which can be stored, uses created number according to terminal 200
According to (such as audio data, phone directory etc.) etc..In addition, memory 120 may include high-speed random access memory, can also wrap
Include nonvolatile memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Correspondingly, memory 120 can also include Memory Controller, to provide processor 180 and input unit 130 to memory
120 access.
Input unit 130 can be used for receiving the number or character information of input, and generate and user setting and function
Control related keyboard, mouse, operating stick, optics or trackball signal input.Specifically, input unit 130 may include touching
Sensitive surfaces 131 and other input equipments 132.Touch sensitive surface 131, also referred to as touch display screen or Trackpad are collected and are used
Family on it or nearby touch operation (such as user using any suitable object or attachment such as finger, stylus in touch-sensitive table
Operation on face 131 or near touch sensitive surface 131), and corresponding attachment device is driven according to preset formula.It is optional
, touch sensitive surface 131 may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus detection is used
The touch orientation at family, and touch operation bring signal is detected, transmit a signal to touch controller；Touch controller is from touch
Touch information is received in detection device, and is converted into contact coordinate, then gives processor 180, and can receive processor 180
The order sent simultaneously is executed.Furthermore, it is possible to using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves
Realize touch sensitive surface 131.In addition to touch sensitive surface 131, input unit 130 can also include other input equipments 132.Specifically,
Other input equipments 132 can include but is not limited to physical keyboard, function key (such as volume control button, switch key etc.),
One of trace ball, mouse, operating stick etc. are a variety of.
Display unit 140 can be used for showing information input by user or the information and terminal 200 that are supplied to user
Various graphical user interface, these graphical user interface can be made of figure, text, icon, video and any combination thereof.
Display unit 140 may include display panel 141, optionally, can use liquid crystal display (Liquid Crystal
Display, LCD), the forms such as Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) it is aobvious to configure
Show panel 141.Further, touch sensitive surface 131 can cover display panel 141, when touch sensitive surface 131 detect it is on it or attached
After close touch operation, processor 180 is sent to determine the type of touch event, is followed by subsequent processing device 180 according to touch event
Type corresponding visual output is provided on display panel 141.Although in Fig. 2, touch sensitive surface 131 and display panel 141
It is that input and input function are realized as two independent components, but in some embodiments it is possible to by touch sensitive surface 131
It is integrated with display panel 141 and realizes and output and input function.
Terminal 200 may also include at least one sensor 150, such as optical sensor, motion sensor and other sensings
Device.Specifically, optical sensor may include ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 141, and proximity sensor can close display when terminal 200 is moved in one's ear
Panel 141 and/or backlight.As a kind of motion sensor, gravity accelerometer can detect in all directions (generally
Three axis) acceleration size, can detect that size and the direction of gravity when static, can be used to identify mobile phone posture application (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；Extremely
In other sensors such as gyroscope, barometer, hygrometer, thermometer, the infrared sensors that terminal 200 can also configure, herein
It repeats no more.
Voicefrequency circuit 160, loudspeaker 161, microphone 162 can provide the audio interface between user and terminal 200.Audio
Electric signal after the audio data received conversion can be transferred to loudspeaker 161, be converted to sound by loudspeaker 161 by circuit 160
Sound signal output；On the other hand, the voice signal of collection is converted to electric signal by microphone 162, after being received by voicefrequency circuit 160
Audio data is converted to, then by after the processing of audio data output processor 180, such as another end is sent to through RF circuit 110
End, or audio data is exported to memory 120 to be further processed.Voicefrequency circuit 160 is also possible that earphone jack,
To provide the communication of peripheral hardware earphone Yu terminal 200.
WiFi belongs to short range wireless transmission technology, and terminal 200 can help user's transceiver electronics by WiFi module 170
Mail, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 2 shows
WiFi module 170, but it is understood that, and it is not belonging to must be configured into for terminal 200, it can according to need completely
Do not change in the range of the essence of invention and omits.
Processor 180 is the control centre of terminal 200, utilizes each portion of various interfaces and connection whole mobile phone
Point, by running or execute the software program and/or module that are stored in memory 120, and calls and be stored in memory 120
Interior data execute the various functions and processing data of terminal 200, to carry out integral monitoring to mobile phone.Optionally, processor
180 may include one or more processing cores；Optionally, processor 180 can integrate application processor and modem processor,
Wherein, the main processing operation system of application processor, user interface and application program etc., modem processor mainly handles nothing
Line communication.It is understood that above-mentioned modem processor can not also be integrated into processor 180.
Terminal 200 further includes the power supply 190 (such as battery) powered to all parts, and optionally, power supply can pass through electricity
Management system and processor 180 are logically contiguous, to realize management charging, electric discharge and power consumption by power-supply management system
The functions such as management.Power supply 190 can also include one or more direct current or AC power source, recharging system, power supply event
Hinder the random components such as detection circuit, power adapter or inverter, power supply status indicator.
Although being not shown, terminal 200 can also include camera, bluetooth module etc., and details are not described herein.Specifically in this reality
It applies in example, the display unit of terminal is touch-screen display, and terminal further includes having memory and executable instruction, wherein can
It executes instruction and is stored in memory, and be configured to be executed by one or more than one processor.The executable instruction is used
In the method for broadcasting multimedia file for executing terminal side in following each embodiments.
Fig. 3 is the structural schematic diagram for a kind of electronic equipment 300 that the embodiment of the present disclosure provides.The electronic equipment 300 can be with
It is provided as cpe device (gateway, router or base station).Referring to Fig. 3, which may include processor 310 and deposits
Reservoir 320 can also include transceiver 330.The memory 320 is stored with computer program, and processor 310 is for executing storage
The computer program stored on device 320, to execute the method for broadcasting multimedia file in following each embodiments.
Processor 310 receives order from other elements, decrypts the order received, executes calculating according to the order of decryption
Or data processing.Memory 320 may include program module, such as kernel (kernel), middleware (middleware), application
Program Interfaces (Application Programming Interface, API) and application.The program module can be
Software, firmware or hardware or in which at least two compositions.
In the exemplary embodiment, a kind of computer readable storage medium is additionally provided, such as is stored with computer program
Memory, above-mentioned computer program loaded by processor and executed to complete the multimedia file broadcasting side in following embodiments
Method.For example, computer readable storage medium can be read-only memory (Read-Only Memory, ROM), random access memory
Device (Random-Access Memory, RAM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM),
Tape, floppy disk and optical data storage devices etc..
Fig. 4 is a kind of flow diagram for method for broadcasting multimedia file that the embodiment of the present disclosure provides.Referring to fig. 4, it wraps
It includes:
401, terminal to business platform server send uniform resource locator (Uniform Resource Locator,
URL) address acquisition request, the address the URL acquisition request are used for the address URL of request multimedia file.
Wherein, multimedia file can be the corresponding multimedia file of programme televised live.
In the embodiment of the present disclosure, terminal can to business platform server send the address URL acquisition request by way of,
From the address URL of business platform server request multimedia file, which can be touched by the operation of user
Hair.For example, when user wants to watch some programme televised live at the terminal, it can be in the display interface of Player to the live streaming
Program carries out clicking operation, and triggering terminal sends the address URL acquisition request to business platform server, such as " the Get in Fig. 4
ChannelURL”。
402, when receiving the address the URL acquisition request of terminal, business platform server returns to the multimedia to terminal
The address URL of file.
In the embodiment of the present disclosure, business platform server can be according to the multimedia text carried in the acquisition request of the address URL
The mark of part, to the address URL of the corresponding multimedia file of return of terminal, such as " the Return Channel URL " in Fig. 4.
403, after terminal receives the address URL of the multimedia file, domain name system (Domain Name is sent
System, DNS) it requests, which carries the domain name part of the address URL of the multimedia file.
In the embodiment of the present disclosure, terminal can obtain the address URL of multimedia file from business platform server, and terminal exists
After obtaining the address URL of multimedia file, domain name mapping can be done according to the domain name part of the address URL.For example, terminal can
To send DNS request to dns server, such as " the Channel Domain DNS Request " in Fig. 4, with request by multimedia
The domain name part of the address URL of file is parsed into IP address.
404, gateway intercepts and captures the DNS request of terminal, and the IP address of gateway is returned to terminal.
In the embodiment of the present disclosure, it is deployed with M2U agent on the gateway, gateway can intercept and capture the Player of terminal to DNS
The DNS request that server is sent regard the IP address (and IP address of M2U agent) of gateway as the corresponding IP in the address URL
Address returns to the IP address of gateway to terminal, that is to say the IP address of M2U agent, to accelerate domain name mapping, in Fig. 4
" Capture DNS Request, Return M2U Agent IP for Accelerate Domain " and " DNS
Response”。
405, terminal sends index file acquisition request to gateway, and the index file acquisition request is for obtaining multimedia text
First index file of part.
Wherein, which includes all code rates of the multimedia file and the slicing files of all code rates
Address.
In the embodiment of the present disclosure, terminal can be obtained after obtaining the IP address of gateway by sending index file to gateway
The mode for taking request obtains the index file of multimedia file to gateway requests, such as " the Get Manifest " in Fig. 4.
406, when receiving the index file acquisition request of terminal, gateway sends the index file to CDN server and obtains
Take request.
In the embodiment of the present disclosure, CDN server can provide the multiple groups fragment of different code rates for same multimedia file
File, the corresponding code rate of every component sheets file.These slicing files are deployed in CDN server, and HTTP can be used in terminal
Protocol sequence request slicing files play out.In order to which terminal selects suitable slicing files, CDN server also provides a rope
Quotation part has recorded the address of all code rates of multimedia file and the slicing files of all code rates.
In the step 406, gateway can act as agent when receiving the index file acquisition request of terminal transmission, lead to
The mode for sending index file acquisition request to CDN server is crossed, the first index text of multimedia file is obtained to CDN server
Part, such as " the Get Manifest " in Fig. 4.
407, when receiving the index file acquisition request of gateway, CDN server sends multimedia file to gateway
First index file.
Wherein, the first index file includes the ground of all code rates of the multimedia file and the slicing files of all code rates
Location.
In the embodiment of the present disclosure, the first index file can be sent to gateway by CDN server, be obtained as to index file
The response for taking request, such as " the HTTP Response " in Fig. 4.
408, gateway receives the first index file of multimedia file.
Above-mentioned steps 406 to 408 are when receiving the index file acquisition request of terminal, and gateway obtains multimedia file
The first index file a kind of possible implementation.
409, gateway obtains the highest code rate of terminal support.
In a kind of possible implementation, gateway obtains the highest code rate of terminal support, comprising: obtains belonging to the terminal
The performance information of gateway；According to the performance information, the highest code rate that the terminal is supported is determined.Wherein, which includes wide
Domain net WAN side unicast available bandwidth, WAN side multicast available bandwidth, central processor CPU occupation proportion, EMS memory occupation ratio with
At least one of and in the available bandwidth of terminal side.
Wherein, gateway this according to the performance information, determine that the highest code rate that the terminal is supported includes but is not limited to following four
Kind mode:
The WAN side unicast available bandwidth, the WAN side multicast available bandwidth and the terminal side can be used band by first way
The highest code rate that any one of width is supported as the terminal.
Under which, if the performance information that gateway is got is WAN side unicast available bandwidth, the WAN side multicast is available
Any one of bandwidth and the terminal side available bandwidth, the then highest that gateway can support any one available bandwidth as terminal
Code rate.For example, the WAN side unicast available bandwidth that gateway is got is 10Mbps, then gateway is it can be concluded that the highest that terminal is supported
Code rate is 10Mbps.
The second way, according to the EMS memory occupation ratio, the caching number of slicing files and each slicing files when
It is long, determine the highest code rate that the terminal is supported.
Under which, if the performance information that gateway is got is EMS memory occupation ratio, gateway can be according to the memory
Occupation proportion determines free memory；According to the free memory, the caching number of slicing files and each slicing files when
It is long, determine cacheable highest code rate；The highest code rate that the cacheable highest code rate is supported as the terminal.
For example, the EMS memory occupation ratio that gateway is got is 80%, and free memory 5MByte=50Mbit, each fragment
File 2 seconds, 2 fragments are cached, then cacheable highest code rate is 50 ÷, 2 ÷ 2=10Mbps.Therefore, gateway can be in local
In file cache code rate be equal to or less than 10Mbsp slicing files, for example, gateway slicing files can be buffered in it is local
In cache file.
The third mode, according to needed for the CPU occupation proportion and forwarding slicing files between CPU occupation proportion and code rate
Corresponding relationship, determine the terminal support highest code rate.
Under which, there are corresponding relationships between CPU occupation proportion and code rate needed for forwarding slicing files.If gateway obtains
The performance information got is CPU occupation proportion, then gateway can determine residue CPU occupation proportion according to the CPU occupation proportion；
According to residue CPU occupation proportion and the corresponding relationship, the corresponding code rate of residue CPU occupation proportion is obtained；By the residue
The highest code rate that the corresponding code rate of CPU occupation proportion is supported as the terminal.
It occupies for example, gateway gets M2U agent and distributes to its CPU occupation proportion and reach 95%, then residue CPU is accounted for
It is 5% with ratio, if it is 5% that forwarding code rate, which is CPU occupation proportion needed for the slicing files of 10Mbps, gateway can be incited somebody to action
The highest code rate that 10Mbps is supported as the terminal.
The WAN side unicast available bandwidth, the WAN side multicast available bandwidth and the terminal side can be used band by the 4th kind of mode
At least two are weighted summation in wide, obtain the highest code rate of terminal support.
Compared to first way, if the performance information that gateway is got is WAN side unicast available bandwidth, the WAN side
At least two in multicast available bandwidth and the terminal side available bandwidth, then gateway can at least two available bandwidths add to this
Power summation, obtains the highest code rate of terminal support.For example, the smallest at least two available bandwidths can be used can be set in terminal
The weight in broadband is higher than the weight of other available bandwidths.Certainly, gateway can also be directly using the smallest available bandwidth as terminal
The highest code rate of support, the embodiment of the present disclosure do not limit this.
It should be noted that above-mentioned may be achieved in that gateway determines that terminal is supported most according to the performance information of itself
High code rate, in fact, gateway can also obtain the highest code rate of terminal support by other means, in a kind of possible implementation
In, the highest code rate of gateway acquisition terminal support, comprising: obtain the business information of the terminal；According to the business of the terminal
Information obtains the highest code rate of terminal support.
Wherein, gateway business information according to the terminal obtains the highest code rate of terminal support, comprising: according to this
The business information of terminal determines the grade of service of the terminal；According to the grade of service of the terminal, the highest that the terminal is supported is determined
Code rate, the different grades of service correspond to different highest code rates.The business information of terminal can be pre-configured on gateway, example
Such as, which is pre-configured in net by configuring switch by the business information that operator can handle according to terminal user
In the M2U agent of pass, allow gateway from middle acquisition business information is locally stored, it in this case, on gateway can be with
Business information configured with multiple terminals, multiple affiliated gateway of terminal is the gateway.By according to Carrier Requirements, customization
Code rate limitation to user, so that permission when providing different brackets business controls, provides different grades of clothes for different user
Business.Certainly, the business information of terminal can not also be pre-configured on gateway, but when needing to obtain business information, temporarily
The business information is activated, so that the business information after the available activation of gateway.
As it can be seen that gateway can both calculate the limitation of highest code rate according to performance information, the highest supported terminal is realized
The dynamic of code rate controls, so that permission when providing different brackets business controls, highest code can also be obtained according to business information
The static cost control for the highest code rate supported terminal is realized in the limitation of rate.
410, the highest code rate that gateway is supported according to the terminal is deleted specified code rate and is somebody's turn to do from first index file
The address of the slicing files of specified code rate, obtains the second index file, which is higher than the highest code rate that terminal is supported.
In the embodiment of the present disclosure, gateway, can be according to the highest code rate, to this after determining the highest code rate that terminal is supported
First index file is handled, and the code rate and corresponding slicing files of the highest code rate will be such as higher than in the first index file
It deletes.
For example, gateway 409 show that the highest code rate that terminal is supported is 10Mbps through the above steps, then gateway can be by the
Slicing files corresponding higher than the code rate of 10Mbps are deleted in one index file.For example, certain fragment texts in the first index file
The code rate of part is 25Mbps, has had exceeded 10Mbps, then gateway can index all slicing files of 25Mbps from first
It is deleted in file, when avoiding playing the excessive slicing files of these code rates, since code rate is greater than the highest code rate that terminal is supported, and
Lead to the problem of result of broadcast difference.
Above-mentioned steps are the processes of content in adjustment index file, if this is most after the highest code rate that gateway obtains terminal
High code rate is obtained according to the business information of terminal, then the content that index file is adjusted according to business information may be implemented in gateway；
If the high code rate is obtained according to the performance information of gateway, gateway may be implemented to adjust index file according to the case where gateway
Content, that is to say, gateway may be implemented not only to be accounted for according to WAN side unicast available bandwidth, WAN side multicast available bandwidth, CPU
Index file is adjusted with ratio, EMS memory occupation ratio and terminal side available bandwidth etc., it can also be according to the industry of terminal
Business information is adjusted index file, thus the highest code rate that limiting terminal is playable, namely the limitation available highest of user
Video resolution.
411, gateway carries out multicast conversation according to the second index file.
Wherein, the second index file includes the part code rate of the multimedia file and the slicing files of the part code rate
Address, the part code rate refer to that remaining code rate after code rate, the part code rate are specified in deletion in all code rates of multimedia file
The highest code rate supported less than or equal to terminal.
In the embodiment of the present disclosure, after gateway obtains the second index file, multicast conversation can be started according to channel assignment,
Such as " Start Multicast Session, the According to Channel Config " in Fig. 4.It that is to say, be deployed with
The gateway of M2U agent can turn to unicast where multicast agent (Unicast to Multicast agent, U2M agent)
Equipment sends slicing files acquisition request, and the slicing files acquisition request is for each code rate in the second index file of request
Slicing files.Equipment can obtain after receiving the slicing files acquisition request to unicast server where U2M agent
After the slicing files of each code rate, the slicing files are returned to gateway, wherein unicast server stores multimedia in the form of source
The slicing files of file.Slicing files can be transmitted using multicast transmission mode between equipment and gateway where U2M agent.
412, second index file is sent to the terminal by gateway, second index file for the terminal according to this
Two index files play out multimedia file.
In the embodiment of the present disclosure, the second index file after treatment can be sent to terminal by gateway, to respond end
The index file acquisition request sent is held, such as " the HTTP Response " in Fig. 4.The index text of terminal is supplied to by limiting
Highest code rate in part allows terminal to attempt that the slicing files of suitable code rate is selected to play out faster, realizes faster
Convergence.And since the code rate in the second index file is less than or equal to the highest code rate that terminal is supported, thus result of broadcast is good.
413, gateway multicast slicing files do FEC correction.
In the embodiment of the present disclosure, for gateway when carrying out multicast conversation, equipment where U2M agent may be to being deployed with
The gateway redundancy of the U2M agent FEC message (obtaining from content packet counting) that send out some additional, gateway can be according to these
Redundant message carries out FEC correction, such as " the FEC Repair " in Fig. 4.It is corrected by FEC, a small amount of packet loss can be restored, such as
0.1% packet loss.
If 414, FEC correction is unsuccessful, gateway is obtained from CDN server loses information.
In the embodiment of the present disclosure, if gateway cannot be corrected by FEC, restore to lose information, such as in multicast transmission process
In a small amount of packet loss, then gateway can obtain the loss information from CDN server, as gateway can be sent to CDN server
The request of HTTP bytes range is repaired with realizing to retransmit, such as " Retransmission Repair (the HTTP Byte in Fig. 4
Range)”。
415, when receiving the second index file, terminal sends slicing files acquisition request, the slicing files to gateway
Acquisition request carries target bit rate, which is equal to or less than the highest code rate that terminal is supported.
In the embodiment of the present disclosure, terminal can be asked after getting the second index file by sending slicing files acquisition
The mode asked obtains the slicing files of target bit rate in the second index file from gateway, such as " the Get Fragment " in Fig. 4.
The target bit rate can be terminal according to current WiFi bandwidth, in all code rates that the second index file includes, selection
One code rate to match with the WiFi bandwidth.
416, when receiving the slicing files acquisition request of terminal, whether gateway inspection locally has the fragment of target bit rate
File.
In the embodiment of the present disclosure, gateway can be in the slicing files of local cache multimedia file, as gateway can will be
Carry out multicast conversation when acquisition slicing files be buffered in local, correspondingly, gateway when receiving slicing files acquisition request,
It can check the local slicing files for whether having the target bit rate, if local cache has the slicing files of the target bit rate,
Gateway can return to the slicing files of the target bit rate to terminal, such as " the Return Multicast Fragment in Fig. 4
from Cache"；If the local slicing files for not being cached with the target bit rate, gateway can be by executing subsequent step
417 and step 418, the slicing files of the target bit rate are obtained from CDN server.
417, when the local not slicing files of target bit rate, gateway sends slicing files acquisition to CDN server and asks
It asks, which carries target bit rate.
In the embodiment of the present disclosure, if the slicing files of the local not target bit rate of gateway, gateway can be using agencies
Mode returns to terminal after the slicing files that CDN server obtains target bit rate, then by the slicing files.Specifically, gateway
The slicing files of target bit rate can be obtained from CDN server, such as by sending slicing files acquisition request to CDN server
" Get Other Fragment in Proxy Mode " in Fig. 4.
418, CDN server sends the slicing files of target bit rate to gateway.
In the embodiment of the present disclosure, CDN server, can be according to the slicing files after receiving slicing files acquisition request
The target bit rate indicated in acquisition request, after the middle slicing files for obtaining the target bit rate are locally stored, returning to gateway should
The slicing files of target bit rate, using the response as the slicing files acquisition request sent to gateway, so that gateway is available
The slicing files of the target bit rate, such as " the HTTP Response " in Fig. 4.
Above-mentioned steps 417 to step 418 is when the local not slicing files of target bit rate of gateway, and gateway takes from CDN
Business device obtains the process of the slicing files of the target bit rate.
419, after gateway receives the slicing files of the target bit rate, the slicing files of the target bit rate are sent to end
End.
In the embodiment of the present disclosure, gateway, can should after the slicing files for getting the target bit rate from CDN server
The slicing files of target bit rate are sent to terminal, using the response as the slicing files acquisition request sent to terminal, in Fig. 4
" HTTP Response ".
420, when the slicing files for receiving the target bit rate, and the slicing files of the target bit rate are point by encryption
When piece file, terminal sends decryption information acquisition request to MultiDRM server.
Wherein, solution confidential information of the decryption information acquisition request for the slicing files of the request target bit rate.
In the embodiment of the present disclosure, the slicing files for the target bit rate that terminal is got may be the fragment text by encryption
Part, in this way, terminal can obtain the solution secret letter of the slicing files from MultiDRM server by decrypting information acquisition request
Breath, such as " the Get DRM License " in Fig. 4.
421, MultiDRM server sends the solution confidential information of the slicing files of the target bit rate to terminal.
In the embodiment of the present disclosure, MultiDRM server, can when receiving the decryption information acquisition request of terminal transmission
To respond the decryption information acquisition request, for example, MultiDRM server can return to the fragment text of the target bit rate to terminal
The solution confidential information of part, which is MultiDRM server is permitted to the slicing files of the terminal plays target bit rates
Can, such as " the Return DRM License " in Fig. 4.
422, terminal locally decrypts the slicing files of the target bit rate, and play the target bit rate according to solution confidential information
Slicing files.
In the embodiment of the present disclosure, after getting solution confidential information the solution confidential information is can be used, to target bit rate in terminal
Slicing files carry out local decryption and decoding, and such as " the Decrypt and Decode " in Fig. 4, in turn, terminal can pass through
Player starts to play the slicing files after decryption.
It should be noted that above-mentioned steps 420 to step 422 are got from CDN server by encryption with terminal
Slicing files, terminal are illustrated for needing to obtain solution confidential information from MultiDRM server.In fact, terminal takes from CDN
The slicing files that business device is got are also likely to be not encrypt, and are somebody's turn to do in this way, terminal does not need then to obtain from MultiDRM server
The solution confidential information of slicing files, but can directly start to play after the slicing files for receiving the target bit rate.
Above-mentioned steps 415 to step 422 is one kind that terminal carries out multimedia file broadcasting according to second index file
Possible implementation.Since the code rate in the second index file is below the highest code rate of terminal support, terminal can only obtain
It takes and plays by the multimedia file of limitation code rate.
It should be noted that above-mentioned steps 415 to step 422 be by taking the slicing files of terminal plays target bit rate as an example into
Row explanation, in fact, terminal can carry out the switching of code rate, for example, the slicing files of the target bit rate can be 0-2s
Slicing files, terminal is during playing the slicing files of the target bit rate, next fragment of available difference code rate
File, such as the slicing files of 0-4s, such terminal can then play difference after playing the slicing files of the target bit rate
Next slicing files of code rate, to achieve the effect that code rate switches.
423, gateway reports operating status and statistical information to M-ABR Controller.
In the embodiment of the present disclosure, during terminal plays multimedia file, gateway can be to M-ABR
The number of retransmissions of the slicing files of multimedia file, the multimedia file that Controller reporting terminal plays, the multimedia
The operating statuses such as the result of broadcast of file and other Quality of experience and statistical information, such as " the Report in Fig. 4
Multicast,Retrans,Play QOE".By reporting the broadcasting situation of multimedia file, so that preferably control is based on group
The multimedia file transmission broadcast.
It should be noted that the embodiment of the present disclosure is to be applied to the affiliated net of terminal with above-mentioned method for broadcasting multimedia file
It closes, is deployed on the gateway for M2U agent and is illustrated, in fact, the M2U agent can also be deployed in company, terminal institute
It connects on router or base station, in this way, above-mentioned method for broadcasting multimedia file also can be applied to router or base station, realizes movement
Multimedia file under network plays, detailed process and the above-mentioned steps 401 when being applied to gateway to step 423 similarly, no longer
It repeats.
By taking base station as an example, base station again may be by the business letter of itself situation (performance information of such as base station) or terminal
Breath obtains the highest code rate that terminal is supported, and adjusts the code rate in index file according to the highest code rate.Wherein, base station obtains
The highest code rate that the terminal is supported, comprising: the performance information for obtaining base station determines what the terminal was supported according to the performance information
Highest code rate；Or obtain the business information of the terminal；According to the business information of the terminal, the highest code of terminal support is obtained
Rate.Wherein, the performance information of base station equally includes WAN side unicast available bandwidth, WAN side multicast available bandwidth, CPU occupancy ratio
At least one of in example, EMS memory occupation ratio and terminal side available bandwidth.Base station determines the terminal branch according to the performance information
The process for the highest code rate held, or according to the business information of the terminal, the highest code rate and gateway for obtaining terminal support are obtained
The highest code rate that terminal is supported similarly, repeats no more.
The method that the embodiment of the present disclosure provides, the highest code rate supported by obtaining terminal, and according to the highest code rate pair
Code rate in index file is adjusted, so that the code rate in the index file that terminal receives is lower than the highest code that terminal is supported
Rate, the slicing files for avoiding the highest code rate that terminal selection code rate is greater than terminal support are downloaded and cause result of broadcast poor
The problem of.
In addition, the highest code rate that terminal is supported both can be according to the terminal gateway, the connected router of terminal or base station
Performance information obtains, to more accurately provide available code rate for terminal, the highest code rate that terminal is supported can also be according to end
The business information at end obtains, and limits to realize and be customized according to Carrier Requirements the code rate of different terminals, is controllable to difference
Charge user provides different grades of multimedia file and plays service.
Further, since the index file for being supplied to terminal is the index file after code rate delete operation, thus compare
In all code rates of multimedia file, the code rate in index file that terminal receives is less, and selectable range of code rates is smaller,
Terminal is allowed to choose suitable code rate faster, to faster be adjusted in place code rate.
Fig. 5 is a kind of structural schematic diagram for multimedia file playing device that the embodiment of the present disclosure provides.It, should referring to Fig. 5
Device includes obtaining module 501, removing module 502 and sending module 503.
Module 501 is obtained, for obtaining the first of multimedia file when receiving the index file acquisition request of terminal
Index file, first index file include the ground of all code rates of the multimedia file and the slicing files of all code rates
Location；
The acquisition module 501 is also used to obtain the highest code rate of terminal support；
Removing module 502, the highest code rate for being supported according to the terminal delete designated code from first index file
The address of the slicing files of rate and the specified code rate, obtains the second index file, which is higher than the highest code rate；
Sending module 503, for second index file to be sent to the terminal, which is used for the terminal
The multimedia file is played out according to second index file.
In a kind of possible implementation, module 501 is obtained for obtaining the mistake of highest code rate in row above-mentioned steps 509
Journey.
In a kind of possible implementation, the performance information packet of the affiliated gateway of terminal, the connected router of terminal or base station
Include wide area network WAN side unicast available bandwidth, WAN side multicast available bandwidth, central processor CPU occupation proportion, EMS memory occupation ratio
At least one of in example and terminal side available bandwidth.
It should be noted that obtaining module 501 can be realized by the transceiver of electronic equipment, removing module 502 can be with
Realize that sending module 503 can be realized by the transceiver of electronic equipment by the processor of electronic equipment.
In the embodiment of the present disclosure, the highest code rate supported by obtaining terminal, and according to the highest code rate to index file
In code rate be adjusted so that the code rate in the index file that terminal receives be lower than terminal support highest code rate, avoid
The slicing files that terminal selection code rate is greater than the highest code rate that terminal is supported are downloaded and cause the problem of result of broadcast difference.
It should be understood that multimedia file playing device provided by the above embodiment is when playing multimedia file, only
The example of the division of the above functional modules, in practical application, can according to need and by above-mentioned function distribution by
Different functional modules is completed, i.e., the internal structure of equipment is divided into different functional modules, described above complete to complete
Portion or partial function.In addition, multimedia file playing device provided by the above embodiment and method for broadcasting multimedia file are real
It applies example and belongs to same design, specific implementation process is detailed in embodiment of the method, and which is not described herein again.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely the alternative embodiments of the disclosure, not to limit the disclosure, all spirit in the disclosure and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the protection scope of the disclosure.
Claims (16)
1. a kind of method for broadcasting multimedia file, which is characterized in that the described method includes:
When receiving the index file acquisition request of terminal, the first index file of multimedia file, first rope are obtained
Quotation part includes the address of all code rates of the multimedia file and the slicing files of all code rates；
Obtain the highest code rate that the terminal is supported；
According to the highest code rate that the terminal is supported, specified code rate and the designated code are deleted from first index file
The address of the slicing files of rate, obtains the second index file, and the specified code rate is higher than the highest code rate；
Second index file is sent to the terminal, second index file is for the terminal according to described second
Index file plays out the multimedia file.
2. the method according to claim 1, wherein the highest code rate for obtaining the terminal and supporting, comprising:
Obtain the business information of the terminal；
According to the business information of the terminal, the highest code rate that the terminal is supported is obtained.
3. according to the method described in claim 2, it is characterized in that, the business information according to the terminal, described in acquisition
The highest code rate that terminal is supported, comprising:
According to the business information of the terminal, the grade of service of the terminal is determined；
According to the grade of service of the terminal, the highest code rate that the terminal is supported is determined, the different grades of service is corresponding different
Highest code rate.
4. the method according to claim 1, wherein the highest code rate for obtaining the terminal and supporting, comprising:
Obtain the performance information of the affiliated gateway of the terminal, the connected router of the terminal or base station；
According to the performance information, the highest code rate that the terminal is supported is determined.
5. according to the method described in claim 4, it is characterized in that, the performance information includes that wide area network WAN side unicast is available
In bandwidth, WAN side multicast available bandwidth, central processor CPU occupation proportion, EMS memory occupation ratio and terminal side available bandwidth
At least one of.
6. according to the method described in claim 5, determining the terminal branch it is characterized in that, described according to the performance information
The highest code rate held, comprising:
By any one of the WAN side unicast available bandwidth, the WAN side multicast available bandwidth and described terminal side available bandwidth
The highest code rate supported as the terminal；Or,
According to the duration of the EMS memory occupation ratio, the caching number of slicing files and each slicing files, the end is determined
Hold the highest code rate supported；Or,
Corresponding relationship according to needed for the CPU occupation proportion and forwarding slicing files between CPU occupation proportion and code rate, really
The highest code rate that the fixed terminal is supported；Or,
It will be at least two in the WAN side unicast available bandwidth, the WAN side multicast available bandwidth and the terminal side available bandwidth
Item is weighted summation, obtains the highest code rate that the terminal is supported.
7. according to the method described in claim 6, it is characterized in that, described according to the EMS memory occupation ratio, slicing files
The duration for caching number and each slicing files determines the highest code rate that the terminal is supported, comprising:
According to the EMS memory occupation ratio, free memory is determined；
According to the duration of the free memory, the caching number of slicing files and each slicing files, determine it is cacheable most
High code rate；
The highest code rate that the cacheable highest code rate is supported as the terminal.
8. method according to claim 6 or 7, which is characterized in that described to be divided according to the CPU occupation proportion and forwarding
Corresponding relationship between CPU occupation proportion and code rate needed for piece file determines the highest code rate that the terminal is supported, comprising:
According to the CPU occupation proportion, residue CPU occupation proportion is determined；
According to the residue CPU occupation proportion and the corresponding relationship, the corresponding code of the residue CPU occupation proportion is obtained
Rate；
The highest code rate that the corresponding code rate of the residue CPU occupation proportion is supported as the terminal.
9. a kind of multimedia file playing device, which is characterized in that described device includes:
Module is obtained, for when receiving the index file acquisition request of terminal, obtaining the first index text of multimedia file
Part, first index file include the address of all code rates of the multimedia file and the slicing files of all code rates；
The acquisition module is also used to obtain the highest code rate that the terminal is supported；
Removing module, the highest code rate for being supported according to the terminal delete specified code rate from first index file
And the address of the slicing files of the specified code rate, the second index file is obtained, the specified code rate is higher than the highest code
Rate；
Sending module, for second index file to be sent to the terminal, second index file is used for the end
End plays out the multimedia file according to second index file.
10. device according to claim 9, which is characterized in that the business for obtaining module and being used to obtain the terminal
Information；According to the business information of the terminal, the highest code rate that the terminal is supported is obtained.
11. device according to claim 10, which is characterized in that the module that obtains is for the business according to the terminal
Information determines the grade of service of the terminal；According to the grade of service of the terminal, the highest code that the terminal is supported is determined
Rate, the different grades of service correspond to different highest code rates.
12. device according to claim 9, which is characterized in that the acquisition module is for obtaining the affiliated net of the terminal
The performance information of pass, the connected router of the terminal or base station；According to the performance information, determine that the terminal is supported most
High code rate.
13. device according to claim 12, which is characterized in that the performance information includes wide area network WAN side unicast can
With bandwidth, WAN side multicast available bandwidth, central processor CPU occupation proportion, EMS memory occupation ratio and terminal side available bandwidth
At least one of in.
14. device according to claim 13, which is characterized in that the acquisition module is used for can by the WAN side unicast
Any one of bandwidth, the WAN side multicast available bandwidth and described terminal side available bandwidth is used to support most as the terminal
High code rate；Or,
The acquisition module is used for according to the EMS memory occupation ratio, the caching number of slicing files and each slicing files
Duration determines the highest code rate that the terminal is supported；Or,
The acquisition module is used for CPU occupation proportion and code rate according to needed for the CPU occupation proportion and forwarding slicing files
Between corresponding relationship, determine the highest code rate that the terminal is supported；Or,
The acquisition module is used for the WAN side unicast available bandwidth, the WAN side multicast available bandwidth and the terminal side
At least two are weighted summation in available bandwidth, obtain the highest code rate that the terminal is supported.
15. device according to claim 14, which is characterized in that the acquisition module is used for according to the EMS memory occupation ratio
Example, determines free memory；According to the duration of the free memory, the caching number of slicing files and each slicing files, really
Fixed cacheable highest code rate；The highest code rate that the cacheable highest code rate is supported as the terminal.
16. device according to claim 14 or 15, which is characterized in that the acquisition module according to the CPU for accounting for
With ratio, residue CPU occupation proportion is determined；According to the residue CPU occupation proportion and the corresponding relationship, obtain described surplus
The corresponding code rate of remaining CPU occupation proportion；The highest that the corresponding code rate of the residue CPU occupation proportion is supported as the terminal
Code rate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044029.8A CN110049355A (en) | 2018-01-17 | 2018-01-17 | Method for broadcasting multimedia file and device |
| PCT/CN2018/096116 WO2019140877A1 (en) | 2018-01-17 | 2018-07-18 | Multimedia file playback method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810044029.8A CN110049355A (en) | 2018-01-17 | 2018-01-17 | Method for broadcasting multimedia file and device |
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| CN110049355A true CN110049355A (en) | 2019-07-23 |
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| CN201810044029.8A Pending CN110049355A (en) | 2018-01-17 | 2018-01-17 | Method for broadcasting multimedia file and device |
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| WO (1) | WO2019140877A1 (en) |
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