CN104937899B - A kind of method and device for assessing audio and video quality of service - Google Patents

A kind of method and device for assessing audio and video quality of service Download PDF

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Publication number
CN104937899B
CN104937899B CN201480000094.0A CN201480000094A CN104937899B CN 104937899 B CN104937899 B CN 104937899B CN 201480000094 A CN201480000094 A CN 201480000094A CN 104937899 B CN104937899 B CN 104937899B
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time point
audio
duration
video resources
video
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CN104937899A (en
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范维光
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04N21/2387—Stream processing in response to a playback request from an end-user, e.g. for trick-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • 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
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2401—Monitoring of the client buffer
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • 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
    • 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
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The present invention relates to audio and video processing technology fields,Disclose a kind of method and device for assessing audio and video quality of service,In the program,The first time point of audio and video resources acquisition request sent out according to terminal is received for the first time,The duration for being issued to the audio and video resources of terminal for the first time reaches the second time point of the first predetermined threshold value and determines initial buffer duration,And the 4th time point for reaching the first predetermined threshold value according to third time point and the total duration of audio and video resources for being issued to terminal since that time point of third determines to play pause duration,And initial buffer duration and play pause duration be according to based on http protocol audio and video business the characteristics of come determining,And then the quality based on initial buffer duration and the broadcasting pause total duration determined assessment audio and video business is accurate,Therefore,The method of assessment audio and video quality of service provided in an embodiment of the present invention can be with the quality of audio and video business of the accurate evaluation based on http protocol,Improve accuracy.

Description

A kind of method and device for assessing audio and video quality of service
Technical field
The present invention relates to audio and video processing technology field, more particularly to a kind of method and dress for assessing audio and video quality of service It puts.
Background technology
With the fast development of mobile broadband and intelligent terminal, the type of service of user's application becomes increasingly abundant, image, video Multimedia services is waited to be played an increasingly important role in daily life.
In current audio and video business, based on HTTP（Hyper Text Transport Protocol, supertext pass It send）The audio and video business of agreement is strong convenient for deployment, firewall penetrating ability due to having many advantages, such as, in entire audio and video business Shared large percentage, and the ratio very little that the audio and video business based on stream media protocol is shared in entire audio and video business.
Wherein, the audio and video business based on http protocol is divided into two classes：One kind is：HTTP Progressive Download（HTTP progressive downloads）Audio and video business；Another kind of is HTTP Live Streaming audio and video business.
Show that the statistics of existing net the audio and video business of network occupies 30%~50%, Er Qiesuo of current now net flow Accounting example is also in the trend further increased, and therefore, assessment audio and video quality of service will become particularly important.At present, sound is assessed The method of video service quality is mainly the quality for the audio and video business based on stream media protocol of assessing, and based on stream media protocol Audio and video business and audio and video business network side based on http protocol in the mode of the playing request of response end side be not With, therefore, go to assess the audio and video business based on http protocol using the method for current assessment audio and video quality of service Quality there are accuracy it is relatively low the defects of.
In conclusion presently, there are audio and video quality of service of the assessment based on http protocol method there are accuracy compared with The defects of low.
Invention content
The embodiment of the present invention provides a kind of method and device for assessing audio and video quality of service, to solve in the prior art Assess the defects of accuracy existing for the method for the audio and video quality of service based on http protocol is relatively low.
In a first aspect, a kind of method for assessing audio and video quality of service is provided, including：
Evaluation the quality device determines to receive the first time that the audio and video resources that terminal is sent out obtain request for the first time Point；
The duration that the evaluation the quality device determines to be issued to the audio and video resources of the terminal for the first time reaches first Second time point of predetermined threshold value, and initial buffer duration is determined according to the first time point and second time point；
The evaluation the quality device determines the total duration of the audio and video resources of third time point corresponding actual play；
The evaluation the quality device is total for the audio and video resources of the third time point corresponding actual play Duration performs following steps：
Reach in the total duration for the audio and video resources for determining actual play the audio and video resources that are sent to the terminal when When long, determine to be issued to the terminal since the total duration corresponding third time point of the audio and video resources of the actual play The total durations of audio and video resources reach the 4th time point of first predetermined threshold value；
By the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to the terminal when The sum of difference between length and the duration between the third time point and the 4th time point, during as with the third Between put it is corresponding broadcasting pause duration；
The evaluation the quality device assesses sound based on the initial buffer duration and the broadcasting pause duration determined The quality of video traffic.
With reference to first aspect, in the first possible implementation, under the evaluation the quality device determines for the first time The total duration for being sent to the audio and video resources of the terminal reaches the second time point of default first threshold value, specifically includes：
The evaluation the quality device determines that the total duration for being issued to the audio and video resources of the terminal for the first time reaches pre- If the second time point of broadcast time-delay value；Or
The evaluation the quality device determines that the total duration for being issued to the audio and video resources of the terminal for the first time reaches institute State the second time point of the preset duration of the affiliated audio-video document of audio and video resources.
With reference to first aspect or the first possible realization method of first aspect, second of possible realization side In formula, the evaluation the quality device determines the total duration of the audio and video resources of third time point corresponding actual play, tool Body includes：
The evaluation the quality device determines third time point, is performed for determining third time point：
It determines in second time point to the duration between the third time point, the user of generation actively suspends corresponding Total duration, and
When with the user it is corresponding total actively to be suspended second time point to the duration between the third time point Long difference, the duration of the audio and video resources as the third time point corresponding actual play.
With reference to first aspect or the first to second possible realization method of first aspect, it is possible at the third In realization method, the evaluation the quality device determine the audio and video resources of third time point corresponding actual play it is total when It is long, it specifically includes：
The evaluation the quality device determines third time point, is performed for third time point：
It determines in second time point to the duration between the third time point, the user of generation actively suspends corresponding Total duration and total broadcasting pause duration, and
When second time point to the duration between the third time point and the user is actively suspended corresponding total The difference with the sum of total broadcasting pause duration is grown, the audio and video resources as the third time point corresponding actual play Duration.
Second with reference to first aspect is to the third possible realization method, in the 4th kind of possible realization method, institute It states evaluation the quality device to determine in third time point to the duration between second time point, the user of generation is actively Suspend corresponding total duration, specifically include：
The evaluation the quality device is received in second time point to the duration between the third time point Arbitrary neighborhood audio and video resources obtain request time difference and the second predetermined threshold value difference, the user as generation Actively suspend corresponding total duration.
With reference to first aspect or first to fourth kind of possible realization method of first aspect, it is possible at the 5th kind In realization method, if there are at least two third time points, the evaluation the quality device determines described at least two The total duration of the audio and video resources of each third time point corresponding actual play in three time points, for it is described extremely The total duration of the audio and video resources of each third time point corresponding actual play in few two third time points, holds respectively Row following steps：
Reach in the total duration for the audio and video resources for determining actual play the audio and video resources that are sent to the terminal when When long, determine to be issued to the terminal since the total duration corresponding third time point of the audio and video resources of the actual play The total durations of audio and video resources reach the 4th time point of first predetermined threshold value；
By the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to the terminal when The sum of difference between length and the duration between the third time point and the 4th time point, during as with the third Between put it is corresponding broadcasting pause duration.
The 5th kind of possible realization method with reference to first aspect, in the 6th kind of possible realization method, further includes：
The evaluation the quality device determines that there are the numbers at the corresponding third time point for playing pause duration；
The evaluation the quality device is based on the initial buffer duration and the broadcasting pause total duration determined assessment The quality of audio and video business, specifically includes：
The evaluation the quality device is based on the initial buffer duration, the broadcasting pause total duration determined and determines The number at third time point gone out assesses the quality of audio and video business.
With reference to first aspect or first to the 6th kind of possible realization method of first aspect, it is possible at the 7th kind In realization method, the evaluation the quality device is any one in terminal, base station, radio network controller (RNC).
Second aspect provides a kind of evaluation the quality device, including：
First determination unit, for the determining first time of audio and video resources acquisition request for receiving terminal for the first time and sending out Point；
Second determination unit, for determining that it is default that the duration of audio and video resources for being issued to the terminal for the first time reaches first Second time point of threshold value, and initial buffer duration is determined according to the first time point and second time point；
Third determination unit, for determining the total duration of the audio and video resources of third time point corresponding actual play；Needle To the total duration of the audio and video resources of the third time point corresponding actual play, following steps are performed：It is determining actually to broadcast When the total duration for the audio and video resources put reaches the duration for the audio and video resources for being sent to the terminal, determine actually to broadcast from described The total duration corresponding third time point for the audio and video resources put starts to be issued to the total duration of the audio and video resources of the terminal Reach the 4th time point of first predetermined threshold value；By the total duration of the audio and video resources of determining actual play and transmission To the difference between the duration of the audio and video resources of the terminal and between the third time point and the 4th time point The sum of duration, as broadcasting pause duration corresponding with the third time point；
Assessment unit, for assessing audio and video industry based on the initial buffer duration and the broadcasting pause total duration determined The quality of business.
With reference to second aspect, in the first possible implementation, second determination unit is specifically used for：
When the total duration of audio and video resources for determining to be issued to the terminal for the first time reaches the second of default broadcast time-delay value Between point；Or
The total duration of audio and video resources for determining to be issued to the terminal for the first time reaches audio and video resources institute dominant and regards Second time point of the preset duration of frequency file.
With reference to the possible realization method of the first of second aspect or second aspect, second of possible realization side In formula, the third determination unit is specifically used for：
It determines third time point, is performed for determining third time point：
It determines in second time point to the duration between the third time point, the user of generation actively suspends corresponding Total duration, and
When with the user it is corresponding total actively to be suspended second time point to the duration between the third time point Long difference, the duration of the audio and video resources as the third time point corresponding actual play.
It is possible at the third with reference to the first to second possible realization method of second aspect or second aspect In realization method, the third determination unit is specifically used for：
It determines third time point, is performed for each third time point：
It determines in second time point to the duration between the third time point, the user of generation actively suspends corresponding Total duration and total broadcasting pause duration；And
When second time point to the duration between the third time point and the user is actively suspended corresponding total The difference with the sum of total broadcasting pause duration is grown, the audio and video resources as the third time point corresponding actual play Duration.
With reference to second aspect second to the third possible realization method, in the 4th kind of possible realization method, institute Third determination unit is stated to be specifically used for：
By in second time point to the duration between the third time point, the audio and video of the arbitrary neighborhood received provide The time difference that source obtains request actively suspends corresponding total duration with the difference of the second predetermined threshold value as the user occurred.
It is possible at the 5th kind with reference to first to fourth kind of possible realization method of second aspect or second aspect In realization method, if there are at least two third time points, when the third determination unit determines at least two third Between put in each third time point corresponding actual play audio and video resources total duration, for described at least two The total duration of the audio and video resources of each third time point corresponding actual play in a third time point, performs such as respectively Lower step：
Reach in the total duration for the audio and video resources for determining actual play the audio and video resources that are sent to the terminal when When long, determine to be issued to the terminal since the total duration corresponding third time point of the audio and video resources of the actual play The total durations of audio and video resources reach the 4th time point of first predetermined threshold value；
By the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to the terminal when The sum of difference between length and the duration between the third time point and the 4th time point, during as with the third Between put it is corresponding broadcasting pause duration.
With reference to the 5th kind of possible realization method of second aspect, in the 6th kind of possible realization method, the third Determination unit is additionally operable to：
Determine that there are the numbers at the corresponding third time point for playing pause duration；
The assessment unit is specifically used for：
Based on the initial buffer duration, the broadcasting pause total duration determined and the third time point determined Number assesses the quality of audio and video business.
It is possible at the 7th kind with reference to first to the 6th kind of possible realization method of second aspect or second aspect In realization method, the evaluation the quality device is any one in terminal, base station, radio network controller (RNC).
The present invention has the beneficial effect that：
Under the prior art, the method for assessment audio and video quality of service predominantly assesses the audio and video based on stream media protocol The quality of business, and the audio and video business based on stream media protocol and the audio and video business network side based on http protocol are responding The mode of the playing request of end side is different, therefore, goes to comment using the method for the quality of current assessment audio and video business Estimate the quality of the audio and video business based on http protocol there are accuracy it is relatively low the defects of, and method provided in an embodiment of the present invention In, it is issued to according to the first time point for receiving the audio and video resources acquisition request that terminal is sent out for the first time and for the first time terminal The second time point that the duration of audio and video resources reaches the first predetermined threshold value determines initial buffer duration, and according to the third time Point and when the total duration of audio and video resources of terminal is issued to since third time point reaching the 4th of the first predetermined threshold value Between put and determine to play pause duration, and initial buffer duration and to play pause duration be according to the audio and video industry based on http protocol The characteristics of business come it is determining, and then based on initial buffer duration and that determines play pause total duration assessment audio and video business Quality is accurate, and therefore, the method for assessment audio and video quality of service provided in an embodiment of the present invention can be based on accurate evaluation The quality of the audio and video business of http protocol, improves accuracy, solves the defects of accuracy is relatively low in the prior art.
Description of the drawings
Fig. 1 is the method flow diagram that audio and video quality of service is assessed in the embodiment of the present invention；
Fig. 2 is one embodiment that audio and video quality of service is assessed in the embodiment of the present invention；
Fig. 3 is another embodiment that audio and video quality of service is assessed in the embodiment of the present invention；
Fig. 4 is the first schematic diagram of functional structure of evaluation the quality device in the embodiment of the present invention；
Fig. 5 is the second schematic diagram of functional structure of evaluation the quality device in the embodiment of the present invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art The all other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, expression may have three kinds of passes System, for example, A and/or B, can represent：Individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein Middle character "/", it is a kind of relationship of "or" to typically represent forward-backward correlation object.
In the embodiment of the present invention, a kind of method for assessing audio and video quality of service is provided, this method is：Evaluation the quality Device determines to receive the first time point that the audio and video resources that terminal is sent out obtain request for the first time；Evaluation the quality device is true The fixed duration of audio and video resources for being issued to terminal for the first time reaches the second time point of the first predetermined threshold value, and during according to first Between point and the second time point determine initial buffer duration；Determine the total of the audio and video resources of third time point corresponding actual play Duration；Evaluation the quality device performs such as the total duration of the audio and video resources of third time point corresponding actual play Lower step：When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to terminal, The determining audio and video resources that terminal is issued to since the total duration corresponding third time point of the audio and video resources of actual play Total duration reach the 4th time point of the first predetermined threshold value；By the total duration of the audio and video resources of determining actual play with The difference being sent between the duration of the audio and video resources of terminal and the duration between third time point and the 4th time point it With, as it is corresponding with third time point broadcasting pause duration；Evaluation the quality device is based on initial buffer duration and determines The quality of pause total duration assessment audio and video business that is gone out play in the program, is regarded according to the sound that terminal sends out is received for the first time The first time point of frequency resource acquisition request and it is issued to the duration of audio and video resources of terminal for the first time reaches the first pre-determined threshold Second time point of value determines initial buffer duration, and according to the total of the audio and video resources of third time point corresponding actual play Duration and be sent to terminal audio and video resources duration between difference and the sound of terminal is issued to since third time point The 4th time point that the total duration of video resource reaches the first predetermined threshold value determines to play pause duration, and initial buffer duration It is come determining, and then during based on initial buffer according to the characteristics of audio and video business based on http protocol with pause duration is played The quality of broadcasting pause total duration assessment audio and video business that is long and determining is accurate, and therefore, the embodiment of the present invention provides The method of assessment audio and video quality of service can standard be improved with the quality of audio and video business of the accurate evaluation based on http protocol True property.
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in fig.1, a kind of method for assessing audio and video quality of service, the tool of this method are provided in the embodiment of the present invention Body process is as follows：
Step 100：Evaluation the quality device determines that receiving the audio and video resources that terminal is sent out for the first time obtains request First time point；
Step 110：The duration that evaluation the quality device determines to be issued to the audio and video resources of terminal for the first time reaches first Second time point of predetermined threshold value, and initial buffer duration is determined according to first time point and the second time point；
Step 120：Evaluation the quality device determines the total of the audio and video resources of third time point corresponding actual play Duration；
Step 130：Evaluation the quality device is total for the audio and video resources of third time point corresponding actual play Duration performs following steps：Reach the audio and video money for being sent to terminal in the total duration for the audio and video resources for determining actual play During the duration in source, determine to be issued to terminal since the total duration corresponding third time point of the audio and video resources of actual play The total duration of audio and video resources reaches the 4th time point of the first predetermined threshold value；By the audio and video resources of determining actual play Total duration and be sent to terminal audio and video resources duration between difference and between third time point and the 4th time point The sum of duration, as broadcasting pause duration corresponding with third time point；
Step 140：Evaluation the quality device is based on initial buffer duration and the broadcasting pause total duration determined assessment The quality of audio and video business.
In practical applications, in order to ensure the fluency played, user experience, the audio and video industry based on http protocol are promoted When business plays out after pausing in initial play or each time, one will be met by being issued to the total duration of the audio and video resources of terminal During fixed condition, it could start to play, for example, when playing HTTP Progresive Download audio and video business for the first time, When broadcast time-delay value will be reached by being issued to the total duration of the HTTP Progressive Download audio and video business of terminal, HTTP Progressive Download audio and video business just starts to play；In another example playing HTTP Live for the first time During Streaming audio and video business, being issued to the total duration of the HTTP Live Streaming audio and video business of terminal will reach During one complete duration of HTTP Live Streaming audio and video business, HTTP Live Streaming audio and video business Just start to play, that is to say, that when a HTTP Live Streaming audio-video document is completely issued to terminal, terminal Just start playing audio-video business.
Therefore, in the embodiment of the present invention, evaluation the quality device determines to be issued to the audio and video resources of terminal for the first time Total duration reaches there are many modes at the second time point of default first threshold value, for example, can be evaluation the quality device The total duration of audio and video resources for determining to be issued to terminal for the first time reaches the second time point of default broadcast time-delay value：Alternatively, It can determine that the total duration for being issued to the audio and video resources of terminal for the first time reaches audio and video resources institute for evaluation the quality device Second time point of the preset duration of dominant video file.
The above-mentioned total duration for being to determine the audio and video resources for being issued to terminal for the first time reaches the of default first threshold value Two embodiments at two time points, in practical applications, also various other realization methods are no longer described in detail herein.
In practical applications, HTTP progressive downloads audio and video business has following features：
1）Audio-video signal is after coding and compression, according to certain Container Format encapsulation hereof；
2）Terminal can generally download multiple files as caching when playing, in initial period, treat steadily to play and slow It just goes to obtain next audio-video document when having certain data in depositing, then after each file finishes；
3）In order to ensure the fluency played, broadcast time-delay value can be set, for example, broadcast time-delay value is 10 seconds, then terminal After only getting the data of audio and video business of 10 seconds, just start to play；
4）In audio and video container, each audio and video segment carries the timestamp of oneself, can accurately determine that it rises Begin the time.
HTTP Live Streaming audio and video business has following features：
1）Complete audio/video flow is divided into a series of files that can be downloaded based on HTTP, each file includes complete One segment of audio/video flow, while generate the index file for extending entitled m3u8；
2）After completely an audio-video document is downloaded, terminal just starts playing audio-video.
In the embodiment of the present invention, evaluation the quality device determines that receiving the audio and video resources that terminal is sent out for the first time obtains There are many modes of the first time point of request, for example, receiving the HTTP GET messages that terminal is sent out, and report according to HTTP GET Text determines to receive the first time point that the audio and video resources that terminal sends out obtain request for the first time, and above-mentioned is to determine and receives for the first time The audio and video resources sent out to terminal obtain a kind of realization method of the first time point of request, in practical applications, also its His realization method, is no longer described in detail herein.
In the embodiment of the present invention, evaluation the quality device determine to be issued to for the first time the audio and video resources of terminal when be up to To the second time point of the first predetermined threshold value mode there are many, for example, evaluation the quality device reception be handed down to terminal The encapsulation video file being encapsulated in inside HTTP message, and from the encapsulation video file received determine be issued to end for the first time The duration of the audio and video resources at end reaches the second time point of the first predetermined threshold value.
In the embodiment of the present invention, there are many methods of determination of broadcast time-delay value, for example, can determine based on experience value, Such as 10 seconds, if broadcast time-delay value is 10 seconds, when being issued to the total durations of the audio and video resources of terminal and reaching 10 seconds, terminal Just start playing audio-video business, wherein, empirical value can be determined by testing major video website, and then be different nets It stands and different broadcast time-delay values is configured.
In the embodiment of the present invention, evaluation the quality device determines the audio and video money of third time point corresponding actual play There are many modes of the total duration in source, and optionally, evaluation the quality device determines third time point, during for determining third Between put perform：
It determines in second time point to the duration between third time point, when the user of generation actively suspends corresponding total It grows, and the second time point to the duration between the third time point is actively suspended to the difference of corresponding total duration with user, make The duration of audio and video resources for the third time point corresponding actual play.
In practical applications, in the second time point to the duration between third time point, it may occur however that user actively suspends, It is also possible to occur to play to pause（It pauses for example, being played caused by network quality is poor）, at this point, evaluation the quality device Determining the mode of the total duration of the audio and video resources of third time point corresponding actual play can be：
It determines third time point, is performed for determining third time point：Determine second time point to third time point Between duration in, the user of generation actively suspends corresponding total duration and plays pause total duration, and by the second time point extremely Duration and user between the third time point actively suspend corresponding total duration and play the difference of the sum of pause total duration, make The duration of audio and video resources for the third time point corresponding actual play.
Such as：9：00（Second time point）Start to play HTTP Progressive Download audio and video business, from 9： 00 starts, every the time point of 1 minute as third time point, such as：9：01、9：02、9：03、9：04、9：05 etc., then 9： 01、9：02、9：03、9：04、9：Each third time point of 05 grade is intended to determine third time point corresponding actual play The total duration of audio and video resources is such as determining 10：During the total duration of the audio and video resources of 00 corresponding actual play, 9 are determined： 00—10：It is 15 minutes that 00 user occurred in this 1 hour, which actively suspends corresponding total duration, does not occur to play and pause, this When, the difference that subtracted 15 minutes by 1 hour, i.e., 45 minutes, as 10：The audio and video resources of 00 corresponding actual play when It is long.
In another example：9：00（Second time point）Start to play HTTP Progressive Download audio and video business, from 9：00 starts, every the time point of 1 minute as third time point, such as：9：01、9：02、9：03、9：04、9：05 etc., then exist 9：01、9：02、9：03、9：04、9：Each third time point of 05 grade is intended to determine third time point corresponding actual play Audio and video resources total duration, such as determining 10：During the total duration of the audio and video resources of 00 corresponding actual play, determine 9：00—10：It is 15 minutes that 00 user occurred in this 1 hour, which actively suspends corresponding total duration, 2 times occur altogether plays to pause, It is 5 minutes that 2 times, which play the delay that pauses, at this point, the difference for subtracting 20 minutes by 1 hour, i.e., 40 minutes, as 10：00 is corresponding The duration of the audio and video resources of actual play.
Be in foregoing description using every time point as the third time point of 1 minute, in practical applications, may interval when Between section it is smaller, for example, 1s, 3s, 5s etc..
In the embodiment of the present invention, judgement occurs there are many modes that user actively suspends, optionally, due in playing process In, it sends to terminal periodic audio and video resources and obtains request, therefore, if the audio and video resources that any two received is adjacent Obtain the sending cycle that the duration between corresponding time point is asked to be more than terminal, it is determined that it is actively temporary that user has occurred Stop, also, the adjacent audio and video resources of any two received are obtained to the duration asked between corresponding time point Actively suspend corresponding total duration as the user occurred with the difference of sending cycle, at this point, sending cycle is just default for second Threshold value, certainly, the second predetermined threshold value can also be other values, no longer be described in detail herein with the difference of application scenarios.
Such as：Terminal sends an audio and video resources for every 5 minutes and obtains request, the then audio and video of the arbitrary neighborhood received The time difference of resource acquisition request is 5 minutes, is actively suspended at this point, user does not occur for judgement, if what is received is wherein adjacent Two audio and video resources obtain the time difference of request as 10 minutes, then judgement at this time has occurred user and actively suspends, and will Wherein adjacent two audio and video resources that receive obtain the time difference 10 minutes of request and sending cycle duration 5 minutes Difference, the user as generation actively suspend corresponding total duration.
In the embodiment of the present invention, when calculating broadcasting pause duration, the broadcasting pause duration corresponding third time is determined Difference between the total duration of audio and video resources of the corresponding actual play of point and the duration for the audio and video resources for issuing terminal, then The total duration of audio and video resources for determining to be issued to terminal since the third time point reaches the 4th of the first predetermined threshold value Time point, then, by the duration between third time point and the 4th time point, the total duration with the audio and video resources of actual play The sum of difference between the duration for the audio and video resources for issuing terminal, when pausing as the third time point corresponding broadcasting It is long.
For example, the total duration in the audio and video resources of the actual play at some third time point is more than and issues the sound of terminal The duration of video resource, the two difference be T seconds, then be issued to since the third time point terminal audio and video resources it is total when Between long the 4th time point and third time point when reaching 8 seconds when a length of 300 seconds, will along with T seconds（300+T）Second As the third time point corresponding broadcasting pause duration.
What step 100 to step 140 was discussed is the situation for only existing a third time point, and in practical applications, having can Can there is a situation where at least two third time points, for executive condition and the step 100- steps at each third time point The situation at the third time point in 140 is identical, specifically, evaluation the quality device will be determined at least two third time points Each third time point corresponding actual play audio and video resources total duration, at least two third times The total duration of the audio and video resources of each third time point corresponding actual play in point, performs following steps respectively：
When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to terminal, The determining audio and video resources that terminal is issued to since the total duration corresponding third time point of the audio and video resources of actual play Total duration reach the 4th time point of the first predetermined threshold value；
By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to terminal it Between difference and the sum of the duration between third time point and the 4th time point, stop as broadcasting corresponding with third time point Immediately it grows.
In practical applications, audio and video quality of service may also be influenced by playing pause number, reduce user experience, the present invention In embodiment, further, in order to improve the accuracy of assessment audio and video quality of service, user experience is promoted, is performing step After rapid 100 to 140, following operation can also be included：Evaluation the quality device determines that there are corresponding broadcasting pause durations Third time point number, at this point, evaluation the quality device paused based on initial buffer duration and the broadcasting determined it is total The mode of the quality of duration assessment audio and video business, optionally, Ke Yiwei：
Evaluation the quality device is based on initial buffer duration, the broadcasting pause total duration determined and the third determined The number at time point assesses the quality of audio and video business.
In practical applications, audio and video business is assessed based on initial buffer duration and the pause total duration that plays determined Quality, alternatively, being based on initial buffer duration, the broadcasting pause total duration determined and the third time point determined Number, the quality of assessment audio and video business is the technology of comparative maturity, is no longer described in detail one by one herein.
In the embodiment of the present invention, there are many evaluation the quality devices, for example, can be terminal or, or base It stands, alternatively, can also be RNC（Radio Network Controller, radio network controller）.
Concrete application scene is given below in embodiment for a better understanding of the present invention, for assessment audio and video business matter The process of amount, makes and being described in further detail：
Embodiment one（It is specific as shown in Figure 2）Executive agent can be terminal, or base station can also be RNC：
Step 200：8：After 00 audio and video resources for receiving terminal transmission for the first time obtain request, audio and video are issued to terminal Resource；
Step 210：8：Determine that the duration for being issued to the audio and video resources of terminal reaches broadcast time-delay value 8 seconds when 05, then Determine a length of 5min during initial buffer；
Step 220：From 8：05 starts, and determines that corresponding third time point sound of corresponding actual play is regarded every 10 minutes The total duration of frequency resource, until audio and video resources play completely；
Step 230：For first third time point 8：The total duration of the audio and video resources of 15 corresponding actual plays, by It is more than the duration for the audio and video resources for issuing terminal in the total duration of the audio and video resources of actual play, the two difference is T seconds, then From 8：15 total durations for starting to be issued to the audio and video resources of terminal reach the 4th time point 8 during broadcast time-delay value 8 seconds：20, With 8：15 difference 300 seconds, will along with T seconds（300+T) second is as 8：When the broadcasting at 15 this third time point pauses Long, each third time point performs as procedure described above, until the sound of each third time point corresponding actual play The total duration of video resource determines to finish；
Step 240：The quality of a length of 5min and broadcasting pause total duration assessment audio and video business during based on initial buffer.
In step 240, or a length of 5min and broadcasting pause total duration, broadcasting pause total during based on initial buffer Number assesses the quality of audio and video business.
Embodiment two（It is specific as shown in Figure 3）Executive agent can be terminal, or base station can also be RNC：
Step 300：8：After 00 audio and video resources for receiving terminal transmission for the first time obtain request, audio and video are issued to terminal Resource；
Step 310：8：The when a length of one complete audio and video for determining to be issued to the audio and video resources of terminal when 05 provide During the duration in source, it is determined that a length of 5min during initial buffer；
Step 320：From 8：05 starts, and determines that corresponding third time point sound of corresponding actual play is regarded every 10 minutes The total duration of frequency resource, until audio and video resources play completely；
Step 330：For first third time point 8：The total duration of the audio and video resources of 15 corresponding actual plays, by It is more than the duration for the audio and video resources for issuing terminal in the total duration of the audio and video resources of actual play, the two difference is T seconds, then From 8：When 15 total durations for starting to be issued to the audio and video resources of terminal are a complete audio and video resources file the 4th when Between put 8：20, with 8：15 difference 300 seconds, will along with T seconds（300+T）Second is used as 8：15 this third time point were broadcast Pause duration is put, each third time point performs as procedure described above, until each third time point corresponding reality The total duration of the audio and video resources of broadcasting determines to finish；
Step 340：The quality of a length of 5min and broadcasting pause total duration assessment audio and video business during based on initial buffer.
Similarly, in step 340, or a length of 5min and broadcasting pause total duration, broadcasting during based on initial buffer Pause total degree assesses the quality of audio and video business.
Based on above-mentioned technical proposal, as shown in fig.4, the embodiment of the present invention provides a kind of evaluation the quality device, it should Device includes the first determination unit 40, the second determination unit 41, third determination unit 42 and assessment unit 43, wherein,
First determination unit 40, during for determining that receiving the audio and video resources that terminal sends out for the first time obtains the first of request Between point；
Second determination unit 41, for determining that the duration of audio and video resources for being issued to terminal for the first time reaches the first pre- gating Second time point of limit value, and initial buffer duration is determined according to first time point and the second time point；
Third determination unit 42, for determining the total duration of the audio and video resources of third time point corresponding actual play； For the total duration of the audio and video resources of third time point corresponding actual play, following steps are performed：Determining actual play The total duration of audio and video resources when reaching the duration for the audio and video resources for being sent to terminal, determine the audio and video from actual play The total duration that the total duration corresponding third time point of resource starts to be issued to the audio and video resources of terminal reaches the first pre- gating 4th time point of limit value；By the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to terminal Duration between difference and the sum of the duration between third time point and the 4th time point, as corresponding with third time point Broadcasting pause duration；
Assessment unit 43, for assessing audio and video business based on initial buffer duration and the broadcasting pause total duration determined Quality.
In the embodiment of the present invention, optionally, the second determination unit 41 is specifically used for：
The total duration of audio and video resources for determining to be issued to terminal for the first time reaches the second time point of default broadcast time-delay value； Or
The total duration of audio and video resources for determining to be issued to terminal for the first time reaches the affiliated audio-video document of audio and video resources Second time point of preset duration.
In the embodiment of the present invention, optionally, third determination unit 42 is specifically used for：
It determines third time point, is performed for determining third time point：
It determines in second time point to the duration between three time points, when the user of generation actively suspends corresponding total It is long, and
Second time point to the duration between the third time point is actively suspended to the difference of corresponding total duration with user, The duration of audio and video resources as the third time point corresponding actual play.
In the embodiment of the present invention, optionally, third determination unit 42 is specifically used for：
It determines third time point, is performed for determining third time point：
It determines in second time point to the duration between third time point, when the user of generation actively suspends corresponding total Long and total broadcasting pause duration；And
Second time point to the duration between the third time point and user is actively suspended into corresponding total duration with always broadcasting The difference of the sum of pause duration is put, the duration of the audio and video resources as the third time point corresponding actual play.
In the embodiment of the present invention, if there are at least two third time points, third determination unit 42 determines at least two The total duration of the audio and video resources of each third time point corresponding actual play in third time point, at least The total duration of the audio and video resources of each third time point corresponding actual play in two third time points, performs respectively Following steps：
When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to terminal, The determining audio and video resources that terminal is issued to since the total duration corresponding third time point of the audio and video resources of actual play Total duration reach the 4th time point of the first predetermined threshold value；
By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to terminal it Between difference and the sum of the duration between third time point and the 4th time point, stop as broadcasting corresponding with third time point Immediately it grows.
In the embodiment of the present invention, optionally, third determination unit 42 is specifically used for：
By in second time point to the duration between third time point, the audio and video resources of the arbitrary neighborhood received obtain The time difference of request is taken actively to suspend corresponding total duration as the user occurred with the difference of the second predetermined threshold value.
In the embodiment of the present invention, further, third determination unit 42 is additionally operable to：
Determine that there are the numbers at the corresponding third time point for playing pause duration；
In the embodiment of the present invention, optionally, assessment unit 43 is specifically used for：
Based on initial buffer duration, the broadcasting pause total duration determined and the number at third time point determined, comment Estimate the quality of audio and video business.
In the embodiment of the present invention, optionally, evaluation the quality device is any one in terminal, base station, RNC.
To sum up, in the embodiment of the present invention, a kind of method for assessing audio and video quality of service is provided, this method is：Determine head The secondary first time point for receiving the audio and video resources that terminal is sent out and obtaining request；Determine that the audio and video for being issued to terminal for the first time provide The duration in source reaches the second time point of the first predetermined threshold value, and determines initially to delay according to first time point and the second time point Rush duration；Determine the total duration of the audio and video resources of third time point corresponding actual play；It is corresponding for third time point The total duration of the audio and video resources of actual play performs following steps：In the total duration for the audio and video resources for determining actual play When reaching the duration for the audio and video resources for being sent to terminal, determine from the total duration of the audio and video resources of actual play corresponding the The total duration that three time points started to be issued to the audio and video resources of terminal reaches the 4th time point of the first predetermined threshold value；It will be true The total duration of the audio and video resources of fixed actual play and be sent to terminal audio and video resources duration between difference and The sum of duration between three time points and the 4th time point, as broadcasting pause duration corresponding with third time point；Based on first Begin buffering duration and the quality for playing pause total duration assessment audio and video business determined, in the program, according to receiving for the first time The audio and video resources sent out to terminal obtain the first time point of request and are issued to the duration of the audio and video resources of terminal for the first time The second time point for reaching the first predetermined threshold value determines initial buffer duration, and according to third time point and from third at that time between The total duration that point starts to be issued to the audio and video resources of terminal reaches the 4th time point of the first predetermined threshold value and determines to play and stop Immediately it grows, and initial buffer duration and to play pause duration be according to based on determining the characteristics of the audio and video business of http protocol , so based on initial buffer duration and the broadcastings pause total duration determined assess audio and video business quality be it is accurate, Therefore, the method for assessment audio and video quality of service provided in an embodiment of the present invention can be regarded with sound of the accurate evaluation based on http protocol The quality of frequency business, improves accuracy.
As shown in figure 5, the embodiment of the present invention provides a kind of entity structure diagram of evaluation the quality device 500, business matter Measure 500 at least one processor 501 of apparatus for evaluating, at least one communication bus 502, at least one network interface 504 or its His user interface 503, memory 505, wherein, communication bus 502 is used to implement the connection communication between these components.
Memory 505 can include read-only memory and random access memory, and provide instruction sum number to processor 501 According to.The a part of of memory 505 can also include nonvolatile RAM（NVRAM）.
In some embodiments, memory 505 stores following element, executable modules or data structures or Their subset of person or their superset:
Operating system 5051 includes various system programs, such as ccf layer Framework, core library layer kernel Library, driving layer driver etc. are used to implement various basic businesses and the hardware based task of processing；
Application program module 5052, comprising various application programs, for example, desktop（launcher）, media player （Media Player）, browser（Browser）Deng being used to implement various applied business.
In embodiments of the present invention, it is used for by the program or instruction, processor 501 of calling the storage of memory 505：
It determines to receive the first time point that the audio and video resources that terminal is sent out obtain request for the first time；
The duration of audio and video resources for determining to be issued to terminal for the first time reaches the second time point of the first predetermined threshold value, and Initial buffer duration is determined according to first time point and the second time point；
Determine the total duration of the audio and video resources of third time point corresponding actual play；
For the total duration of the audio and video resources of third time point corresponding actual play, following steps are performed：
When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to terminal, The determining audio and video resources that terminal is issued to since the total duration corresponding third time point of the audio and video resources of actual play Total duration reach the 4th time point of the first predetermined threshold value；
By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to terminal it Between difference and the sum of the duration between third time point and the 4th time point, stop as broadcasting corresponding with third time point Immediately it grows；
Based on initial buffer duration and the quality for playing pause duration assessment audio and video business determined.
Optionally, processor 501 is specifically used for：The total duration of audio and video resources for determining to be issued to terminal for the first time reaches pre- If the second time point of broadcast time-delay value；Or
The total duration of audio and video resources for determining to be issued to terminal for the first time reaches the affiliated audio-video document of audio and video resources Second time point of preset duration.
Optionally, processor 501 is specifically used for：It determines third time point, is performed for determining third time point：
It determines in second time point to the duration between third time point, when the user of generation actively suspends corresponding total It is long, and
Second time point to the duration between the third time point is actively suspended to the difference of corresponding total duration with user, The duration of audio and video resources as the third time point corresponding actual play.
Optionally, processor 501 is specifically used for：It determines third time point, is performed for third time point：
It determines in second time point to the duration between third time point, when the user of generation actively suspends corresponding total Long and total broadcasting pause duration, and
Second time point to the duration between the third time point and user is actively suspended into corresponding total duration with always broadcasting The difference of the sum of pause duration is put, the duration of the audio and video resources as the third time point corresponding actual play.
Optionally, processor 501 is specifically used for：By in second time point to the duration between third time point, receive The audio and video resources of the arbitrary neighborhood arrived obtain the time difference of request and the difference of the second predetermined threshold value, the use as generation Householder moves the corresponding total duration of pause.
Optionally, processor 501 is additionally operable to：If there are at least two third time points, it is determined that during at least two thirds Between put in each third time point corresponding actual play audio and video resources total duration, at least two the The total duration of the audio and video resources of each third time point corresponding actual play in three time points performs following step respectively Suddenly：
When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to terminal, The determining audio and video resources that terminal is issued to since the total duration corresponding third time point of the audio and video resources of actual play Total duration reach the 4th time point of the first predetermined threshold value；
By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to terminal it Between difference and the sum of the duration between third time point and the 4th time point, stop as broadcasting corresponding with third time point Immediately it grows.
Optionally, processor 501 is additionally operable to：Determine that there are the numbers at the corresponding third time point for playing pause duration；
When assessing the quality of audio and video business based on initial buffer duration and the broadcasting pause total duration determined, specifically For：
Based on initial buffer duration, the broadcasting pause total duration determined and the number at third time point determined, comment Estimate the quality of audio and video business.
The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real Present one flow of flow chart or one box of multiple flows and/or block diagram or the device of the function in multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or Function in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one The step of function in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then additional changes and modifications may be made to these embodiments.So appended claims be intended to be construed to include it is excellent It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this hair The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims (16)

  1. A kind of 1. method for assessing audio and video quality of service, which is characterized in that including：
    Evaluation the quality device determines to receive the first time point that the audio and video resources that terminal is sent out obtain request for the first time；
    It is default that the evaluation the quality device determines that the duration for being issued to the audio and video resources of the terminal for the first time reaches first Second time point of threshold value, and initial buffer duration is determined according to the first time point and second time point；
    The evaluation the quality device determines the total duration of the audio and video resources of third time point corresponding actual play, described Third time point is the time point of fixed time intervals after second time point；
    The evaluation the quality device is directed to the total duration of the audio and video resources of the third time point corresponding actual play, Perform following steps：
    When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to the terminal, The determining sound that the terminal is issued to since the total duration corresponding third time point of the audio and video resources of the actual play The duration of video resource reaches the 4th time point of first predetermined threshold value；
    By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to the terminal it Between difference and the sum of the duration between the third time point and the 4th time point, as with the third time point Corresponding broadcasting pause total duration；
    The evaluation the quality device is regarded based on the initial buffer duration and the broadcasting pause total duration determined assessment sound The quality of frequency business.
  2. 2. the method as described in claim 1, which is characterized in that the evaluation the quality device determines to be issued to for the first time described The duration of the audio and video resources of terminal reaches the second time point of default first threshold value, specifically includes：
    The evaluation the quality device determines that the duration for being issued to the audio and video resources of the terminal for the first time reaches default broadcasting Second time point of delay value；Or
    The evaluation the quality device determines that the duration for being issued to the audio and video resources of the terminal for the first time reaches the sound and regards Second time point of the preset duration of the affiliated audio-video document of frequency resource.
  3. 3. the method as described in claim 1, which is characterized in that the evaluation the quality device determines that third time point corresponds to Actual play audio and video resources total duration, specifically include：
    The evaluation the quality device determines third time point, is performed for determining third time point：
    It determines in second time point to the duration between the third time point, when the user of generation actively suspends corresponding total It is long, and
    Second time point to the duration between the third time point is actively suspended into corresponding total duration with the user Difference, the total duration of the audio and video resources as the third time point corresponding actual play.
  4. 4. the method as described in claim 1, which is characterized in that the evaluation the quality device determines that third time point corresponds to Actual play audio and video resources total duration, specifically include：
    The evaluation the quality device determines third time point, is performed for third time point：
    It determines in second time point to the duration between the third time point, when the user of generation actively suspends corresponding total Long and total broadcasting pause duration, and
    By second time point to the duration between the third time point and the user actively suspend corresponding total duration with Total difference for playing the sum of pause duration, audio and video resources as the third time point corresponding actual play it is total when It is long.
  5. 5. the method as described in claim 3 or 4, which is characterized in that the evaluation the quality device determines second time In point to the duration between the third time point, the user of generation actively suspends corresponding total duration, specifically includes：
    The evaluation the quality device is appointed what is in second time point to the duration between the third time point, received The audio and video resources for anticipating adjacent obtain the time difference of request and the difference of the second predetermined threshold value, and the user as generation is actively Suspend corresponding total duration.
  6. 6. the method as described in any one of claim 1-4, which is characterized in that if there are at least two third time points, The evaluation the quality device determines that each third time point in at least two thirds time point is corresponding The total duration of the audio and video resources of actual play, for each third time point pair in at least two thirds time point The total duration of the audio and video resources for the actual play answered, performs following steps respectively：
    When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to the terminal, The determining sound that the terminal is issued to since the total duration corresponding third time point of the audio and video resources of the actual play The duration of video resource reaches the 4th time point of first predetermined threshold value；
    By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to the terminal it Between difference and the sum of the duration between the third time point and the 4th time point, as with the third time point Corresponding broadcasting pause total duration.
  7. 7. method as claimed in claim 6, which is characterized in that further include：
    The evaluation the quality device determines that there are the numbers at the corresponding third time point for playing pause total duration；
    The evaluation the quality device is regarded based on the initial buffer duration and the broadcasting pause total duration determined assessment sound The quality of frequency business, specifically includes：
    The evaluation the quality device is based on the initial buffer duration, the broadcasting pause total duration determined and determines The number at third time point assesses the quality of audio and video business.
  8. 8. the method as described in claim 1-4 and any one of 7, which is characterized in that the evaluation the quality device is eventually Any one in end, base station, radio network controller (RNC).
  9. 9. a kind of evaluation the quality device, which is characterized in that including：
    First determination unit, for the determining first time point of audio and video resources acquisition request for receiving terminal for the first time and sending out；
    Second determination unit, for determining that the duration of audio and video resources for being issued to the terminal for the first time reaches the first pre-determined threshold Second time point of value, and initial buffer duration is determined according to the first time point and second time point；
    Third determination unit, for determining the total duration of the audio and video resources of third time point corresponding actual play；For institute The total duration of the audio and video resources of third time point corresponding actual play is stated, performs following steps：Determining actual play When the total duration of audio and video resources reaches the duration for the audio and video resources for being sent to the terminal, determine from the actual play The duration that the total duration corresponding third time point of audio and video resources starts to be issued to the audio and video resources of the terminal reaches institute State the 4th time point of the first predetermined threshold value；By the total duration of the audio and video resources of determining actual play and it is sent to described Difference between the duration of the audio and video resources of terminal and the duration between the third time point and the 4th time point it With, as it is corresponding with the third time point broadcasting pause total duration；The third time point for second time point it The time point of fixed time intervals afterwards；
    Assessment unit, for assessing audio and video business based on the initial buffer duration and the pause total duration that plays determined Quality.
  10. 10. device as claimed in claim 9, which is characterized in that second determination unit is specifically used for：
    The duration of audio and video resources for determining to be issued to the terminal for the first time reaches the second time point of default broadcast time-delay value；Or Person
    The duration of audio and video resources for determining to be issued to the terminal for the first time reaches the affiliated audio-video document of the audio and video resources Preset duration the second time point.
  11. 11. device as claimed in claim 9, which is characterized in that the third determination unit is specifically used for：
    It determines third time point, is performed for determining third time point：
    It determines in second time point to the duration between the third time point, when the user of generation actively suspends corresponding total It is long, and
    Second time point to the duration between the third time point is actively suspended into corresponding total duration with the user Difference, the total duration of the audio and video resources as the third time point corresponding actual play.
  12. 12. device as claimed in claim 9, which is characterized in that the third determination unit is specifically used for：
    It determines third time point, is performed for each third time point：
    It determines in second time point to the duration between the third time point, when the user of generation actively suspends corresponding total Long and total broadcasting pause duration；And
    By second time point to the duration between the third time point and the user actively suspend corresponding total duration with Total difference for playing the sum of pause duration, audio and video resources as the third time point corresponding actual play it is total when It is long.
  13. 13. the device as described in claim 11 or 12, which is characterized in that the third determination unit is specifically used for：
    By in second time point to the duration between the third time point, the audio and video resources of the arbitrary neighborhood received obtain The time difference of request is taken actively to suspend corresponding total duration as the user occurred with the difference of the second predetermined threshold value.
  14. 14. the device as described in any one of claim 9-12, which is characterized in that if there are at least two third time points, Then the third determination unit determines each third time point corresponding reality in at least two thirds time point The total duration for the audio and video resources that border plays is corresponded to for each third time point in at least two thirds time point Actual play audio and video resources total duration, perform following steps respectively：
    When the total duration for the audio and video resources for determining actual play reaches the duration for the audio and video resources for being sent to the terminal, The determining sound that the terminal is issued to since the total duration corresponding third time point of the audio and video resources of the actual play The duration of video resource reaches the 4th time point of first predetermined threshold value；
    By the duration of the total duration of the audio and video resources of determining actual play and the audio and video resources for being sent to the terminal it Between difference and the sum of the duration between the third time point and the 4th time point, as with the third time point Corresponding broadcasting pause total duration.
  15. 15. device as claimed in claim 14, which is characterized in that the third determination unit is additionally operable to：
    Determine that there are the numbers at the corresponding third time point for playing pause total duration；
    The assessment unit is specifically used for：
    Based on the initial buffer duration, the broadcasting pause total duration determined and the number at third time point determined, comment Estimate the quality of audio and video business.
  16. 16. the device as described in claim 9-12 and any one of 15, which is characterized in that the evaluation the quality device is Any one in terminal, base station, radio network controller (RNC).
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