CN106686409A - Streaming media code rate adaptive method and device, server and terminal - Google Patents
Streaming media code rate adaptive method and device, server and terminal Download PDFInfo
- Publication number
- CN106686409A CN106686409A CN201510760712.8A CN201510760712A CN106686409A CN 106686409 A CN106686409 A CN 106686409A CN 201510760712 A CN201510760712 A CN 201510760712A CN 106686409 A CN106686409 A CN 106686409A
- Authority
- CN
- China
- Prior art keywords
- access bandwidth
- bit rate
- encoder
- terminal
- streaming media
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
- H04N21/23655—Statistical multiplexing, e.g. by controlling the encoder to alter its bitrate to optimize the bandwidth utilization
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a streaming media code rate adaptive method and device, a server and a terminal. The method comprises the steps that the access bandwidth of the terminal is acquired; the coding rate is determined according to the access bandwidth; multi-rate coding is performed on streaming media at least according to the coding rate; and the streaming media after multi-rate coding is sliced, and the sliced streaming media are transmitted to the terminal through a HTTP.
Description
Technical field
The present invention relates to electronic technology, more particularly to a kind of streaming media bit rate adaptive approach and device, service
Device, terminal.
Background technology
Self adaptive Video Streaming, self adaptive Video Streaming (ABS, adaptive bitrate are introduced first
Streaming) it is a kind of streaming media transmission technique for computer network.Past streaming media transmission technique
It is mostly based on RTP (RTP, Real-time Transport Protocol) or real time streaming transport protocol
(RTSP, Real Time Streaming Protocol) agreement, and present transmission technology be then mostly based on it is super
Text transfer protocol (HTTP, Hyper Text Transfer Protocol), and from Protocol Design, more
Large-scale distributed http network (such as internet) is supported well.
The technology is used by detecting the access bandwidth of user and the central processing unit (CPU) of equipment in real time
Rate, so as to adjust the coding quality of video flowing.To realize this effect, need using single video source is defeated
Go out the encoder for multi code Rate of Chinese character.The client of player can be according to the change of available resources in different code checks
Switch between video flowing.When the technology can reduce the buffer time during streaming media playing and start
Between, the user for different access conditions provides more preferably Consumer's Experience.
In the technical scheme being widely adopted now, self adaptation Video Streaming is generally adopted and is based on
The transmission plan of http protocol, video content carries out multi code Rate of Chinese character process, and the video of these multi code Rate of Chinese characters is cut
Piece was into the small documents of several seconds.Client first obtains the section index information of all code checks, and from lowest bit rate
Video flowing start request.With the carrying out played, if the speed of download of client is slower than cutting for current request
Piece code check, then transfer the next relatively low code check of request (if also having).If on the contrary, downloading speed
Section code check of the degree higher than current request, then it will attempt the section file of the higher code check of request.
Slice size is closely related with concrete implementation scheme, and length is typically between 2～10 seconds.Each is cut
Piece is by complete picture group (GOP, a Group of Pictures) sequence composition, a GOP sequence
There are 1 or multiple I frames in the inside, and first frame of GOP sequences must be I frames, to cut into slices with each
Broadcasting can individually be decoded to show.
QoE is described below, user experience quality (Quality of Experience, abbreviation QoE) is
User with regard to service subjective experience (such as web page browsing, voice call, television broadcasting) quantization, wherein shadow
The factor for ringing QoE is as shown in table 1.
Table 1 affects the principal element table of QoE
At present, under study for action using most widely Consumer's Experience quantizating index is that the marking of average user satisfaction is
(MOS, Mean Opinion Score), is qualitatively quantizating index.MOS adopts the user of five grades
Subjective assessment fraction, the very poor, poor, general, preferable of business and well not is represented with 1 to 5 points
Same level user experience quality.User's subjective satisfaction is corresponding with MOS as shown in table 2.
The user's subjective satisfaction of table 2 table corresponding with MOS
The ABS technologies of relatively broad employing at present have：1) Apple HLS, 2) MPEG-DASH, 3)
Adobe HDS and 4) Microsoft MSS；Illustrate as a example by Apple HLS host-host protocols below, should
Apple HLS protocols are proposed by Apple, are a kind of stream media network host-host protocols based on HTTP.
The operation principle of Apple HLS protocols is that whole Media Stream is sliced into size based on HTTP files come under
Carry.Client can be during Media Stream be played, and client can have more the change of available resources, from
The different Back Up Source of numerous code checks is downloaded.When a flow media session is started, client can download one
Individual extended M3U (m3u8) the playlist files comprising metadata, for finding available Media Stream.
Different from RTP (RTP), HLS can pass through the fire wall that any permission HTTP data pass through
Or proxy server.Therefore, it is easy to carry out media stream using content distributing network.
Although the self adaptation Video Streaming with Apple HLS as representative can be according to subscriber channel situation accordingly
The Video service of differentiation is provided, its importance seems particularly prominent when subscriber channel situation occurs significant changes
Go out, Quality of experience (QoE) of the user to video traffic can be significantly improved.However, the technical scheme
Shortcoming is to lack feed-forward mechanism between user and encoder.For the video traffic of multicast class, this
Shortcoming is fairly obvious, because for multicast class video traffic user, the access quantity of user and access
The distribution situation of bandwidth is often time-varying.In the case where feed-forward mechanism is lacked, and these information are not
Encoder can be in time fed back to, causes overall customer experience not good, and bring the waste of computing resource.It is existing
Considering the extreme situation of a comparison.Such as when all users access bandwidth long-time in 1Mbps with
It is interior, and encoder is also in the coding for carrying out minimum 1.5Mbps, in this case, Consumer's Experience is inevitable very
It is bad！
The content of the invention
In view of this, the embodiment of the present invention provides one to solve at least one problem present in prior art
Plant streaming media bit rate adaptive approach and device, server, terminal, it is possible to increase user is to video traffic
Quality of experience.
What the technical scheme of the embodiment of the present invention was realized in：
In a first aspect, the embodiment of the present invention provides a kind of streaming media bit rate adaptive approach, methods described includes：
Obtain the access bandwidth of terminal；
Encoder bit rate is determined according to the access bandwidth；
At least carry out multi code Rate of Chinese character coding according to the encoder bit rate streaming media；
Streaming Media after multi code Rate of Chinese character is encoded is cut into slices, and the Streaming Media after section is sent to by HTTP
Terminal.
Second aspect, the embodiment of the present invention provides a kind of streaming media bit rate adaptive approach, and methods described includes：
The access bandwidth of itself is obtained, and the access bandwidth is sent to server；
Section file with the first code check is selected according to the access bandwidth；
Section file with the first code check is downloaded by the uniform resource position mark URL link in m3u8；
Cache the section file.
The third aspect, the embodiment of the present invention provides a kind of streaming media bit rate adaptive approach, and methods described includes：
Obtain the access bandwidth of terminal；
Encoder bit rate is determined according to the access bandwidth；
The encoder encoder bit rate being sent in server.
Fourth aspect, the embodiment of the present invention provides a kind of server, and the server includes decision device, coding
Device and food slicer, wherein the decision device includes first acquisition unit, determining unit and the second transmitting element,
Wherein：
The first acquisition unit, for obtaining the access bandwidth of terminal；
The determining unit, for determining encoder bit rate according to the access bandwidth；
Second transmitting element, for the encoder bit rate to be sent to into encoder；
The encoder, for receiving the encoder bit rate that the transmitting element sends, and at least according to the volume
Code code check streaming media carries out multi code Rate of Chinese character coding；
The food slicer, is cut into slices for the Streaming Media after multi code Rate of Chinese character is encoded, by the Streaming Media after section
Terminal is sent to by HTTP.
5th aspect, the embodiment of the present invention provides a kind of terminal, and the terminal includes second acquisition unit, choosing
Unit, download unit and buffer unit are selected, wherein：
The second acquisition unit, for obtaining the access bandwidth of itself, and sends the access to server
Bandwidth；
The select unit, for determining the section file with the first code check according to the access bandwidth；
The download unit, has for downloading by the uniform resource position mark URL link in m3u8
The section file of one code check；
The buffer unit, for caching the section file.
6th aspect, the embodiment of the present invention provides a kind of streaming media bit rate self-reacting device, and described device includes
First acquisition unit, determining unit and the second transmitting element, wherein：
The first acquisition unit, for obtaining the access bandwidth of terminal；
The determining unit, for determining encoder bit rate according to the access bandwidth；
Second transmitting element, for the encoder being sent to the encoder bit rate in server.
A kind of streaming media bit rate adaptive approach provided in an embodiment of the present invention and device, server, terminal,
Wherein, the access bandwidth of terminal is obtained；Encoder bit rate is determined according to the access bandwidth；At least according to described
Encoder bit rate streaming media carries out multi code Rate of Chinese character coding；Streaming Media after multi code Rate of Chinese character is encoded is cut into slices, and will be cut
Streaming Media after piece is sent to terminal by HTTP；So, it is possible to improve experience of the user to video traffic
Quality.
Description of the drawings
Fig. 1 is the configuration diagram of HLS protocol in correlation technique；
Fig. 2-1 is the configuration diagram of HLS protocol provided in an embodiment of the present invention；
Fig. 2-2 realizes schematic flow sheet for the streaming media bit rate adaptive approach of the embodiment of the present invention one；
Fig. 2-3 realizes schematic flow sheet for the streaming media bit rate adaptive approach of the embodiment of the present invention one；
Fig. 3 is HLS rate adaption schematic flow sheets in correlation technique；
Fig. 4 is the HLS code check self adaptive flow schematic diagrames in the embodiment of the present invention three based on QoE；
Fig. 5 is m3u8 file content schematic diagrames in the embodiment of the present invention；
Fig. 6 is the composition structural representation of the server of the embodiment of the present invention four；
Fig. 7 is the composition structural representation of the terminal of the embodiment of the present invention five.
Specific embodiment
Below in conjunction with the accompanying drawings the technical solution of the present invention is further elaborated with specific embodiment.
Fig. 1 is the configuration diagram of HLS protocol in correlation technique, as shown in figure 1, the HLS protocol
Framework includes server 110 and client 120, and in server 110 (the Media of media encoders 111 is included
Encoder), food slicer 112 (Stream Segmenter) and (the Origin Web of source Web server 113 are flowed
Server), the Voice ＆ Video of input enters media coding 111, the audio frequency of 111 pairs of inputs of media encoders
Encoded with video (Media Stream), then media encoders 111 are by the video after coding and audio frequency (matchmaker
Body stream) stream food slicer 112 is sent to, size of the food slicer 112 based on HTTP files is flowed to video and sound
Frequently (Media Stream) is cut into slices, and then flows food slicer 112 by the video and audio input after section to source Web
Server 113, most opisthogenesis Web server 113 are sent to client 120 by HTTP.
Fig. 2-1 is the configuration diagram of HLS protocol provided in an embodiment of the present invention, as shown in Fig. 2-1, is somebody's turn to do
The framework of HLS protocol includes server 110 and client 120, and in server 110 media encoders are included
111 (Media Encoder), stream food slicer 112 (Stream Segmenter), source Web server 113
(Origin Web Server) and determiner 114, what the reception of decision device 114 different clients 120 were reported connects
Enter bandwidth, carried out being calculated the coding parameter of optimum according to certain algorithm, and the coding parameter is sent
To encoder 111；The Voice ＆ Video of input enters media encoders 111, and media encoders 111 are according to institute
State coding parameter carries out multi code Rate of Chinese character coding to the Voice ＆ Video (Media Stream) being input into, then media encoders
Video and audio frequency (Media Stream) after coding is sent to stream food slicer 112 by 111, and stream food slicer 112 is based on
The size of HTTP files is cut into slices to video and audio frequency (Media Stream), and then flowing food slicer 112 will cut
, to source Web server, most opisthogenesis Web server is by HTTP transmissions for video and audio input after piece
To client 120.
Contrast Fig. 1 and Fig. 2-1, from from overall system architecture, technical scheme provided in an embodiment of the present invention with
HLS schemes are compared in correlation technique, increased a decision device (Decision Device) 114.The judgement
Device 114 is used to receive the access bandwidth that different user is reported, and is carried out being calculated optimum according to certain algorithm
Coding parameter, and described coding parameter is sent to into encoder 111, then encoder is to the video that is input into
Multi code Rate of Chinese character coding is carried out with audio frequency.
Embodiment one
Based on aforesaid Fig. 1 and Fig. 2-1, the embodiment of the present invention provides a kind of streaming media bit rate adaptive approach,
Fig. 2-2 realizes schematic flow sheet, such as Fig. 2-2 for the streaming media bit rate adaptive approach of the embodiment of the present invention one
Shown, the method includes：
Step S201, obtains the access bandwidth of terminal；
Here, the terminal includes multiple, the access bandwidth for obtaining terminal, including：
Step S2011, decision device receives the access bandwidth parameter value that plural terminal sends；
Step S2012, decision device is counted to the access bandwidth parameter value, obtains statistics；
Step S2013, decision device using the statistics as the terminal access bandwidth.
Step S202, according to the access bandwidth encoder bit rate is determined；
Here, decision device determines encoder bit rate according to the access bandwidth, including：Decision device is according to access band
Width searches default corresponding relation, obtains encoder bit rate, wherein, the encoder bit rate meets following formula：
Wherein, P () represents density function function,Average MOS point of user is represented, max is represented and asked most
Big value, g (si) represent from siMapping relations between MOS point of estimate, siRepresent the coding code on the i-th tunnel
Rate.
Step S203, at least carries out multi code Rate of Chinese character coding according to the encoder bit rate streaming media；
Here, at least multi code Rate of Chinese character coding is carried out according to the encoder bit rate streaming media, including：
Encoder carries out multi code Rate of Chinese character coding according to coding parameter streaming media, and the coding parameter at least includes compiling
Code code check, frame per second.
Step S204, the Streaming Media after multi code Rate of Chinese character is encoded is cut into slices, and the Streaming Media after section is passed through
HTTP is sent to terminal.
Here, food slicer is cut into slices to the Streaming Media after multi code Rate of Chinese character coding, and wherein encoder and food slicer be all
It is a part for server.
In the embodiment of the present invention, method provided in an embodiment of the present invention can be used for server end, and above-mentioned sentences
Certainly device can be used as a part for server, it is also possible to used as independent device.Decision device in server is obtained
Take the access bandwidth of terminal；Accordingly, the decision device determines encoder bit rate according to the access bandwidth, so
Afterwards the encoder bit rate is sent to the decision device encoder in server；Accordingly, the encoder
The encoder bit rate is received, and at least carries out multi code Rate of Chinese character coding according to the encoder bit rate streaming media.
In the embodiment of the present invention, wherein, obtain the access bandwidth of terminal；Determined according to the access bandwidth and compiled
Code code check；At least carry out multi code Rate of Chinese character coding according to the encoder bit rate streaming media；After multi code Rate of Chinese character is encoded
Streaming Media is cut into slices, and the Streaming Media after section is sent to into terminal by HTTP；So, it is possible to improve
Quality of experience of the user to video traffic.
Embodiment two
Based on aforesaid Fig. 1 and Fig. 2-1, the embodiment of the present invention provides a kind of streaming media bit rate adaptive approach,
Terminal is applied to, the function that the method is realized can be by the processor caller code in terminal come real
Existing, certain program code can be stored in computer-readable storage medium, it is seen then that the terminal at least includes processing
Device and storage medium.
Fig. 2-3 realizes schematic flow sheet for the streaming media bit rate adaptive approach of the embodiment of the present invention two, such as schemes
Shown in 2-3, the method includes：
Step S231, obtains the access bandwidth of itself, and sends the access bandwidth to server；
Here, terminal measures the access bandwidth of itself, then access bandwidth is sent to into server.
Step S232, according to the access bandwidth section file with the first code check is selected；
Here, the code check according to access bandwidth selection section file, including：According to the access
Bandwidth searches default corresponding relation, obtains the first code check, wherein the corresponding relation is used to characterize accesses band
Directly proportional relation between code check value in wide and m3u8.
Step S233, is downloaded by URL (URL) link in m3u8 and has first yard
The section file of rate；
Step S234, caches the section file.
Embodiment three
Based on aforesaid Fig. 1 and Fig. 2-1, specifically change from from the perspective of Signalling exchange below, Fig. 3 is phase
HLS rate adaptions schematic flow sheet in the technology of pass, Fig. 4 is the HLS in the embodiment of the present invention three based on QoE
Code check self adaptive flow schematic diagram, below referring initially to HLS rate adaptions flow process in correlation technique, as shown in figure 3,
The flow process includes：
Step S301, server carries out HLS issues, to treat that user accesses the live video；
Here, the video of input and audio frequency can be generated m3u8 files by the encoder in server, then right
M3u8 files carry out multi code Rate of Chinese character coding, and then food slicer is cut into slices to the file after multi code Rate of Chinese character coding.
Step S302, client accesses the live video；
Here, client initiates video request to server, and then user accesses this and live regards by client
Frequently.
Step S303, client downloads m3u8 files from server；
Here, the video request in server response of step S302, then server to client send m3u8
File.
Step S304, client selects code check suitably to cut into slices file according to access bandwidth；
Here, the code check value in client measurements access bandwidth, with m3u8 is compared, and selects code check to close
Suitable section file；
Step S305, client is cut by URL (URL) link in m3u8, download
Piece file；
Here, repeat step S304 is to step S305.
In actual live or order program service, multiple user concurrents watch video, the video that server is provided
Code check, that is, need to meet Consumer's Experience, there is provided video quality there is preferable MoS values, again consider make
Many concurrent users can have preferable video quality to experience.Many concurrent users are thought of as this embodiment of the present invention to carry
It is maximum for the average MoS score values of preferable video quality, i.e. video quality.
The embodiment of the present invention increases decision device newly in related framework figure, reports bandwidth by different clients and sentences
Certainly device, decision device sets up the encoder coding parameter that the QoE models of reflection Mos values simultaneously calculate optimum,
Give encoder renewal, preferably to provide self-adaption code rate, table 3 be Fig. 4 flow process in need to use
Symbol and its table of comparisons of definition.
The symbol of table 3 and defining contrast table
Wherein, Mi=g (bi,Pi), and g (X) represents the mapping from coding parameter to MOS between point estimate
Relation.It should be noted thatThe average MOS of all users point for can counting is generally referred to, it is described
Average MOS point can be the MOS point of estimate for all users arithmetic mean of instantaneous value.
Fig. 4 is the HLS code check self adaptive flow schematic diagrames in the embodiment of the present invention three based on QoE, is set
Timing reports bandwidth duration t (optional t=10s), and the flow process is comprised the following steps that：
Step S401, server generates m3u8 files, carries out multi code Rate of Chinese character and encodes and cut into slices, to treat user's visit
Ask the live video；
Here, the video of input and audio frequency can be generated m3u8 files by the encoder in server, then right
M3u8 files carry out multi code Rate of Chinese character coding, and then the food slicer in server is carried out to the file after multi code Rate of Chinese character coding
Section.
Here, the encoder in server is according to the code for pre-setting when multi code Rate of Chinese character coding is carried out
What rate was encoded, for example, the code check for pre-setting is 1Mbps, 2Mbps and 3Mbps, then service
Device is encoded to m3u8 files according to 1Mbps, 2Mbps and 3Mbps.
Step S402, client accesses the live video；
Here, client initiates video request to server, and then user accesses this and live regards by client
Frequently.
Step S403, client downloads m3u8 files from server end；
Here, the video request in server response of step S402, then server to client send m3u8
File.
Step S404, the code check value in client measurements access bandwidth, with m3u8 is compared, option code
Rate is suitably cut into slices file；
Here, step S404 is by taking m3u8 files as an example：When user bandwidth is more than or equal to 500kbps,
The section file corresponding to mid_video_index.m3u8 will be selected；When user bandwidth is more than or equal to 150kbps,
During less than 500kbps, the section file corresponding to 3g_video_index.m3u8 will be selected, the rest may be inferred.
Fig. 5 is m3u8 file content schematic diagrames in the embodiment of the present invention, as shown in figure 5, by said process formula
Change and represent, in the case where k roads multi code Rate of Chinese character coding is preset, sjFor jth road coding code check, andsj≤sj+1。
The code rate selection method of i-th user is investigated below, for i-th user there are following several situations：1)
If ri≥sk, then bi=sk；If 2) sj≤ri＜ sj+1, 1≤j≤k-1, then bi=sj；If 3) ri＜ s1,
So bi=0.According to these three rules and according to riWith sj, 1 ＜ j ＜ k are set up from riTo biMapping relations,
It is designated as bi=f (ri, S), S=[s1,s2...sk]. from the point of view of the mapping relations more than, bandwidth is bigger, then use on the road
The corresponding encoder bit rate in family is also bigger.
Step S405, client downloads section file by the URL link in m3u8；
The result of bandwidth measurement is reported decision device by step S406, client in t, for decision device
Carry out bandwidth statistics；
Step S407, decision device is counted user bandwidth, obtains statistics；
Here, a small amount of user can statistical straggling value, a large number of users can count the probability density function of access bandwidth
p(x)。
Step S408, decision device judges video type, arranges a1 to a5；
Here, the parameter value of MOS assessment models is set according to video type, MOS assessment models are determined.
By biWith the MOS values of i-th user, i.e. MiOne-to-one mapping relations are set up, is designated as
Mi=g (f (ri,S),Pi), then MiIt is as follows：
Here, FR represents the frame per second of video, and PER represents the Packet Error Ratio of video.If setting FR as 25fps,
PER is set as 0, then above formula can be written as：
Mi=g (f (ri, S))=a1+25a2+a3ln(f(ri,S)) (2)；
Wherein, a1～a5Determined by different video types, video type includes that slow class video, translation class are regarded
Frequency and quick class video, the corresponding parameter of three class videos is different, i.e. Au=[a1, a2, a3, a4, a5]u, u=1,
2、3；
Here, during implementing, slow class video, translation class video, quick class video can be with
It is similar to be considered the different types of video of three speed, two threshold values, i.e. First Speed for example can be set
Threshold value and second speed threshold value, wherein First Speed threshold value be less than second speed threshold value, when the speed of video it is little
In First Speed threshold value, the video type of the video is classified as into slow video type；When the speed of video
During more than First Speed threshold value and less than second speed threshold value, the video type of the video is classified as into translation
Video type；When the speed of video is more than second speed threshold value, the video type of the video is classified as soon
Fast video type；It should be noted that speed described here does not imply that the speed of transmission of video, but regard
The translational speed of object in frequency.
Step S409, decision device solves optimum encoder bit rate to different types of video.
Here, divided as optimization aim such as formula (3) with the average MOS for maximizing user：
According to the corresponding A of three class video typesu, search is per corresponding optimal solution S of class videou=[s1,s2,s3...,sk]u,
Wherein SuThe as court verdict of decision device, as code check list to be updated.Wherein, S1=[s1,s2,s3...,sk]1Make
For the corresponding code check list of slow class video, S2=[s1,s2,s3...,sk]2As the corresponding code check row of translation class video
Table, S3=[s1,s2,s3...,sk]3As the corresponding code check list of quick class video.In the formula, capital S
Footmark 1,2 and 3 represent the video of 3 kinds of type of sports, small letter [s respectively1, s2... sk]1Represent at a slow speed
The transcoding code check of class video, such as [0.5M, 1M ... 3M].To every type games video, solve and cause M equal
The maximum s of valuei, as optimum code code check.
For convenience of calculation, it is assumed that user bandwidth is located at (0, s1),(si,si+1),(sk,+∞) in the range of have n respectively0,ni,nkIt is individual
User (0 ＜ i ＜ k, i=1,2 ... k-1).So above formula can be rewritten into：
In formula (4), s is remembered0For 0, sk+1For+∞.When number of users is larger, can be to bandwidth distribution
Probability density function counted, substitute into (4) formula solved.It is assumed herein that user's access bandwidth is general
Rate density function is p (x), and its cumulative distribution function is P (x).N so in (4) formulaiCan accordingly change
For N × [P (si+1)-P(si)], (4) formula of substitution can obtain formula (5)：
Solve further according to said method.
Court verdict is reported encoder by step S410, decision device, with the encoder bit rate of more new encoder；
Here, the encoder bit rate that decision device is reported may be identical with the encoder bit rate for pre-setting, it is also possible to no
Together, the encoder bit rate for for example pre-setting is 1Mbps, 2Mbps and 3Mbps, then what decision device was reported
Encoder bit rate may be 1.5Mbps, 2.5Mbps and 3Mbps, and in the related, encoder is always all
It is to be encoded according to the encoder bit rate streaming media for pre-setting, but in embodiments of the present invention, compiles
The encoder bit rate of code device can be changed with the access bandwidth of client, therefore, the volume that decision device is reported
Code code check may not be the encoder bit rate value for pre-setting.
Step S411, the encoder in server is updated to m3u8 files, and carries out the volume of multi code Rate of Chinese character
Code；
Here, encoder is to different types of video file, according to the court verdict of decision device, to m3u8
File is accordingly updated, while carry out multi code Rate of Chinese character according to the result and encoding and cutting into slices.
Step S412, in t+1, repeat step S403 is to step S411.
Example IV
Based on aforesaid method, the embodiment of the present invention provides a kind of server, the judgement included by the server
Device, encoder and food slicer, and the first acquisition unit included by the decision device, determining unit and
Two transmitting elements, can be realized by the processor in server；Certainly also can be by specific logic
Circuit realiration；During specific embodiment, processor can be central processing unit (CPU), microprocessor
Device (MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 6 is the composition structural representation of the server of the embodiment of the present invention four, as shown in fig. 6, the server
600 include decision device 601, encoder 602 and food slicer 603, wherein the decision device 601 includes first
Acquiring unit 611, the transmitting element 613 of determining unit 612 and second, wherein：
The first acquisition unit 611, for obtaining the access bandwidth of terminal；
The determining unit 612, for determining encoder bit rate according to the access bandwidth；
Second transmitting element 613, for the encoder bit rate to be sent to into encoder；
The encoder 602, for receiving the encoder bit rate that the transmitting element sends, and at least according to institute
Stating encoder bit rate streaming media carries out multi code Rate of Chinese character coding；
The food slicer 603, is cut into slices for the Streaming Media after multi code Rate of Chinese character is encoded, by the stream after section
Media are sent to terminal by HTTP.
In the embodiment of the present invention, the first acquisition unit includes receiver module, statistical module and processing module,
Wherein：
The receiver module, for receiving the access bandwidth parameter value that two and two or more terminal send；
The statistical module, for counting to the access bandwidth parameter value, obtains statistics；
The processing module, for using the statistics as the terminal access bandwidth.
In the embodiment of the present invention, the encoder, for receiving the encoder bit rate that the transmitting element sends,
And carry out multi code Rate of Chinese character coding according to coding parameter streaming media, the coding parameter at least include encoder bit rate,
Frame per second.
In the embodiment of the present invention, the determining module, for searching default corresponding relation according to access bandwidth,
Encoder bit rate is obtained, wherein, the encoder bit rate meets following formula：
Wherein, P () represents density function function,Average MOS point of user is represented, max is represented and asked most
Big value, g (si) represent from siMapping relations between MOS point of estimate, siRepresent the coding code on the i-th tunnel
Rate.
Decision device in the embodiment of the present invention is also used as independently of the device outside the server, for example
First acquisition unit, determining unit and second can be included with a kind of streaming media bit rate self-reacting device, the device
Transmitting element, wherein：
The first acquisition unit, for obtaining the access bandwidth of terminal；
The determining unit, for determining encoder bit rate according to the access bandwidth；
Second transmitting element, for the encoder being sent to the encoder bit rate in server.
Embodiment five
Based on aforesaid method, the embodiment of the present invention provides a kind of terminal, the second acquisition included by the terminal
Unit, select unit, download unit and buffer unit, can be realized by the processor in terminal；
Certainly also can be realized by specific logic circuit；During specific embodiment, during processor can be
Central processor (CPU), microprocessor (MPU), digital signal processor (DSP) or field-programmable
Gate array (FPGA) etc..
Fig. 7 is the composition structural representation of the terminal of the embodiment of the present invention five, as shown in fig. 7, the terminal 700
Including second acquisition unit 701, select unit 702, download unit 703 and buffer unit 704, wherein：
The second acquisition unit 701, for obtaining the access bandwidth of itself, and sends described to server
Access bandwidth；
The select unit 702, for determining the section file with the first code check according to the access bandwidth；
The download unit 703, for by the lower carrier of uniform resource position mark URL link in m3u8
There is the section file of the first code check；
The buffer unit 704, for caching the section file.
In the embodiment of the present invention, the select unit, for searching default correspondence according to the access bandwidth
Relation, obtains the first code check；The code check value that the corresponding relation is used to characterizing in access bandwidth and m3u8 it
Between directly proportional relation.
The technical scheme that above example of the present invention is provided is compared compared with prior art, it is considered to for many and hair
Family provides preferable video quality, i.e. video quality average MoS score values maximum, can significantly increase user
Quality of experience to video traffic.1) when applying self-adaption code rate technical scheme in multicast service, by increasing
Plus decision device this module, in order that the average MoS score values of many concurrent users are maximum, propose reflection QoE's
MoS models, wherein code rate selection consider the relation with access bandwidth, and model considers multiple user clients
The concurrent bandwidth situation at end, under conditions of average MoS values maximum is caused optimum code is solved, and is fed back to
Encoder carries out multi code Rate of Chinese character coding.Different bandwidth interval number of users is counted when wherein calculating, is simplified and is calculated mould
Type.2) in decision device based on QoE MoS models consider at a slow speed, translation, quick three types video
The code check for inside holding, parameter value a1～a5Value difference can more react objective reality under different type.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text means and reality
Apply the relevant special characteristic of example, structure or characteristic to be included at least one embodiment of the present invention.Therefore,
" in one embodiment " or " in one embodiment " occurred everywhere in entire disclosure not necessarily refers to
Identical embodiment.Additionally, these specific feature, structure or characteristics can be combined in any suitable manner
In one or more embodiments.It should be understood that in various embodiments of the present invention, the sequence of above-mentioned each process
Number size be not meant to the priority of execution sequence, the execution sequence of each process should be patrolled with its function and inherence
Collect and determine, and any restriction should not be constituted to the implementation process of the embodiment of the present invention.The embodiments of the present invention
Sequence number is for illustration only, does not represent the quality of embodiment.
It should be noted that herein, term " including ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that a series of process, method, article or dress including key elements
Put and not only include those key elements, but also including other key elements being not expressly set out, or also include for
The intrinsic key element of this process, method, article or device.In the absence of more restrictions, by
The key element that sentence "including a ..." is limited, it is not excluded that in process, method, thing including the key element
Also there is other identical element in product or device.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, can
To realize by another way.Apparatus embodiments described above are only schematic, for example, institute
The division of unit is stated, only a kind of division of logic function there can be other dividing mode when actually realizing,
Such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features can be neglected
Slightly, or do not perform.In addition, the coupling each other of shown or discussed each part or directly coupling
Conjunction or communication connection can be INDIRECT COUPLING or the communication connections by some interfaces, equipment or unit, can
Be it is electrical, machinery or other forms.
It is above-mentioned as separating component explanation unit can be or may not be it is physically separate, as
The part that unit shows can be or may not be physical location；Both a place had been may be located at, also might be used
To be distributed on multiple NEs；Part or all of unit therein can be according to the actual needs selected
Realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated in a processing unit,
Can also be each unit individually as a unit, it is also possible to which two or more units are integrated in one
In individual unit；Above-mentioned integrated unit both can be realized in the form of hardware, it would however also be possible to employ hardware adds soft
The form of part functional unit is realized.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of said method embodiment can
To be completed by the related hardware of programmed instruction, aforesaid program can be stored in embodied on computer readable storage
In medium, the program upon execution, performs the step of including said method embodiment；And aforesaid storage is situated between
Matter includes：Movable storage device, read-only storage (Read Only Memory, ROM), magnetic disc or
CD etc. is various can be with the medium of store program codes.
Or, if the above-mentioned integrated unit of the present invention is realized and as independently using in the form of software function module
Production marketing or when using, it is also possible in being stored in a computer read/write memory medium.Based on so
Understanding, the part that the technical scheme of the embodiment of the present invention substantially contributes in other words to prior art can
To be embodied in the form of software product, the computer software product is stored in a storage medium, bag
Include some instructions to use so that a computer equipment (can be personal computer, server or network
Equipment etc.) perform all or part of each embodiment methods described of the invention.And aforesaid storage medium bag
Include：Movable storage device, ROM, magnetic disc or CD etc. are various can be with the medium of store program codes.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art the invention discloses technical scope in, can readily occur in
Change or replacement, all should be included within the scope of the present invention.Therefore, protection scope of the present invention should
It is defined by the scope of the claims.
Claims (17)
1. a kind of streaming media bit rate adaptive approach, it is characterised in that methods described includes：
Obtain the access bandwidth of terminal；
Encoder bit rate is determined according to the access bandwidth；
At least carry out multi code Rate of Chinese character coding according to the encoder bit rate streaming media；
Streaming Media after multi code Rate of Chinese character is encoded is cut into slices, and the Streaming Media after section is sent to by HTTP
Terminal.
2. method according to claim 1, it is characterised in that the access bandwidth of the acquisition terminal,
Including：
Receive the access bandwidth parameter value that two and plural terminal send；
The access bandwidth parameter value is counted, statistics is obtained；
Using the statistics as the terminal access bandwidth.
3. method according to claim 1, it is characterised in that described at least according to the encoder bit rate
Streaming media carries out multi code Rate of Chinese character coding, including：
Carry out multi code Rate of Chinese character coding according to coding parameter streaming media, the coding parameter at least include encoder bit rate,
Frame per second.
4. the method according to any one of claims 1 to 3, it is characterised in that connect described in the basis
Enter bandwidth and determine encoder bit rate, including：
Default corresponding relation is searched according to access bandwidth, encoder bit rate is obtained, wherein, the encoder bit rate
Meet following formula：
Wherein, P () represents density function function,Average MOS point of user is represented, max is represented and asked most
Big value, g (si) represent from siMapping relations between MOS point of estimate, siRepresent the coding code on the i-th tunnel
Rate, wherein：
Wherein, riFor the access bandwidth of i-th user, a1、a2、a3、
a4And a5For the coefficient relevant with video type for arranging, FR represents the frame per second of video, and PER represents video
Packet Error Ratio, S=[s1,s2...sk], wherein sjFor jth road coding code check, andsj≤sj+1。
5. the method according to any one of claims 1 to 3, it is characterised in that the acquisition terminal
Access bandwidth, including：
Decision device in server obtains the access bandwidth of terminal；Accordingly, the decision device connects according to described
Enter bandwidth and determine encoder bit rate, then the encoder bit rate is sent to the decision device coding in server
Device；
Accordingly, the encoder receives the encoder bit rate, and at least according to the encoder bit rate convection current matchmaker
Body carries out multi code Rate of Chinese character coding.
6. a kind of streaming media bit rate adaptive approach, it is characterised in that methods described includes：
The access bandwidth of itself is obtained, and the access bandwidth is sent to server；
Section file with the first code check is selected according to the access bandwidth；
Section file with the first code check is downloaded by the uniform resource position mark URL link in m3u8；
Cache the section file.
7. method according to claim 6, it is characterised in that described to be selected according to the access bandwidth
The code check of section file, including：
Default corresponding relation is searched according to the access bandwidth, the first code check is obtained；The corresponding relation is used
Directly proportional relation between code check value in sign access bandwidth and m3u8.
8. a kind of streaming media bit rate adaptive approach, it is characterised in that methods described includes：
Obtain the access bandwidth of terminal；
Encoder bit rate is determined according to the access bandwidth；
The encoder encoder bit rate being sent in server.
9. method according to claim 8, it is characterised in that the access bandwidth of the acquisition terminal,
Including：
Receive the access bandwidth parameter value that two and plural terminal send；
The access bandwidth parameter value is counted, statistics is obtained；
Using the statistics as the terminal access bandwidth.
10. a kind of server, it is characterised in that the server includes decision device, encoder and food slicer,
Wherein described decision device includes first acquisition unit, determining unit and the second transmitting element, wherein：
The first acquisition unit, for obtaining the access bandwidth of terminal；
The determining unit, for determining encoder bit rate according to the access bandwidth；
Second transmitting element, for the encoder bit rate to be sent to into encoder；
The encoder, for receiving the encoder bit rate that the transmitting element sends, and at least according to the volume
Code code check streaming media carries out multi code Rate of Chinese character coding；
The food slicer, is cut into slices for the Streaming Media after multi code Rate of Chinese character is encoded, by the Streaming Media after section
Terminal is sent to by HTTP.
11. servers according to claim 10, it is characterised in that the first acquisition unit includes
Receiver module, statistical module and processing module, wherein：
The receiver module, for receiving the access bandwidth parameter value that two and plural terminal send；
The statistical module, for counting to the access bandwidth parameter value, obtains statistics；
The processing module, for using the statistics as the terminal access bandwidth.
12. servers according to claim 10, it is characterised in that the encoder, for receiving
The encoder bit rate that the transmitting element sends, and carry out multi code Rate of Chinese character coding, institute according to coding parameter streaming media
Stating coding parameter at least includes encoder bit rate, frame per second.
13. servers according to any one of claim 10 to 12, it is characterised in that the determination
Module, for searching default corresponding relation according to access bandwidth, obtains encoder bit rate, wherein, the volume
Code code check meets following formula：
Wherein, P () represents density function function,Average MOS point of user is represented, max is represented and asked most
Big value, g (si) represent from siMapping relations between MOS point of estimate, siRepresent the coding code on the i-th tunnel
Rate, wherein：
Wherein, riFor the access bandwidth of i-th user, a1、a2、a3、
a4And a5For the coefficient relevant with video type for arranging, FR represents the frame per second of video, and PER represents video
Packet Error Ratio, S=[s1,s2...sk], wherein sjFor jth road coding code check, andsj≤sj+1。
A kind of 14. terminals, it is characterised in that the terminal include second acquisition unit, select unit, under
Carrier unit and buffer unit, wherein：The second acquisition unit, for obtaining the access bandwidth of itself, and
The access bandwidth is sent to server；
The select unit, for determining the section file with the first code check according to the access bandwidth；
The download unit, has for downloading by the uniform resource position mark URL link in m3u8
The section file of one code check；
The buffer unit, for caching the section file.
15. terminals according to claim 14, it is characterised in that the select unit, for basis
The access bandwidth searches default corresponding relation, obtains the first code check；The corresponding relation connects for sign
Enter directly proportional relation between the code check value in bandwidth and m3u8.
16. a kind of streaming media bit rate self-reacting devices, it is characterised in that described device includes that first obtains single
Unit, determining unit and the second transmitting element, wherein：
The first acquisition unit, for obtaining the access bandwidth of terminal；
The determining unit, for determining encoder bit rate according to the access bandwidth；
Second transmitting element, for the encoder being sent to the encoder bit rate in server.
17. terminals according to claim 16, it is characterised in that the first acquisition unit includes connecing
Module, statistical module and processing module are received, wherein：
The receiver module, for receiving the access bandwidth parameter value that two and plural terminal send；
The statistical module, for counting to the access bandwidth parameter value, obtains statistics；
The processing module, for using the statistics as the terminal access bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510760712.8A CN106686409B (en) | 2015-11-09 | 2015-11-09 | Streaming media code rate self-adaption method and device, server and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510760712.8A CN106686409B (en) | 2015-11-09 | 2015-11-09 | Streaming media code rate self-adaption method and device, server and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686409A true CN106686409A (en) | 2017-05-17 |
| CN106686409B CN106686409B (en) | 2020-06-09 |
Family
ID=58863787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510760712.8A Active CN106686409B (en) | 2015-11-09 | 2015-11-09 | Streaming media code rate self-adaption method and device, server and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106686409B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109040855A (en) * | 2018-09-03 | 2018-12-18 | 重庆邮电大学 | A kind of wireless DASH streaming media bit rate smooth adaptive transmission method |
| CN109302623A (en) * | 2018-11-01 | 2019-02-01 | 南京大学 | A kind of transmission method based on QoE model dynamic self-adapting video |
| CN109788324A (en) * | 2017-11-14 | 2019-05-21 | 华为技术有限公司 | Video broadcasting method and equipment |
| CN109788372A (en) * | 2019-01-24 | 2019-05-21 | 维沃移动通信有限公司 | A kind of playback method and relevant apparatus of Streaming Media |
| WO2020015678A1 (en) * | 2018-07-19 | 2020-01-23 | 北京达佳互联信息技术有限公司 | Media code rate self-adaptation method and apparatus, computer device, and storage medium |
| CN111617466A (en) * | 2020-05-12 | 2020-09-04 | 咪咕文化科技有限公司 | Method and device for determining coding format and method for realizing cloud game |
| WO2022151381A1 (en) * | 2021-01-15 | 2022-07-21 | 华为技术有限公司 | Communication method and apparatus |
| CN115379221A (en) * | 2022-10-25 | 2022-11-22 | 中诚华隆计算机技术有限公司 | Streaming media data transmission method and system |
| CN117278538A (en) * | 2023-11-22 | 2023-12-22 | 荣耀终端有限公司 | Method for adjusting parameters of encoder and electronic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040022267A1 (en) * | 2002-07-31 | 2004-02-05 | Koninklijke Philips Electronics N.V. | Adaptive bandwidth efficient intelligent multimedia networks toward future generation wireless gigabit LANS |
| CN101222296A (en) * | 2008-01-31 | 2008-07-16 | 上海交通大学 | Self-adapting transmission method and system in ascending honeycomb video communication |
| CN101252689A (en) * | 2008-02-29 | 2008-08-27 | 杭州爱威芯科技有限公司 | Self-adapting code rate control method |
| CN102325274A (en) * | 2011-10-13 | 2012-01-18 | 浙江万里学院 | A kind of video flowing transfer control method of network bandwidth adaptive |
| CN102333089A (en) * | 2011-09-26 | 2012-01-25 | 南京邮电大学 | Adaptive control method of multi-rate media stream based on hypertext transfer protocol (HTTP) streaming |
| US20120224612A1 (en) * | 2011-03-04 | 2012-09-06 | Qualcomm Atheros, Inc. | Method And Apparatus Supporting Improved Wide Bandwidth Transmissions |
| CN103428105A (en) * | 2012-05-14 | 2013-12-04 | 中国科学院声学研究所 | Self-adaptive HTTP streaming code stream switching method and system based on bandwidth estimation |
-
2015
- 2015-11-09 CN CN201510760712.8A patent/CN106686409B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040022267A1 (en) * | 2002-07-31 | 2004-02-05 | Koninklijke Philips Electronics N.V. | Adaptive bandwidth efficient intelligent multimedia networks toward future generation wireless gigabit LANS |
| CN101222296A (en) * | 2008-01-31 | 2008-07-16 | 上海交通大学 | Self-adapting transmission method and system in ascending honeycomb video communication |
| CN101252689A (en) * | 2008-02-29 | 2008-08-27 | 杭州爱威芯科技有限公司 | Self-adapting code rate control method |
| US20120224612A1 (en) * | 2011-03-04 | 2012-09-06 | Qualcomm Atheros, Inc. | Method And Apparatus Supporting Improved Wide Bandwidth Transmissions |
| CN102333089A (en) * | 2011-09-26 | 2012-01-25 | 南京邮电大学 | Adaptive control method of multi-rate media stream based on hypertext transfer protocol (HTTP) streaming |
| CN102325274A (en) * | 2011-10-13 | 2012-01-18 | 浙江万里学院 | A kind of video flowing transfer control method of network bandwidth adaptive |
| CN103428105A (en) * | 2012-05-14 | 2013-12-04 | 中国科学院声学研究所 | Self-adaptive HTTP streaming code stream switching method and system based on bandwidth estimation |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109788324A (en) * | 2017-11-14 | 2019-05-21 | 华为技术有限公司 | Video broadcasting method and equipment |
| WO2020015678A1 (en) * | 2018-07-19 | 2020-01-23 | 北京达佳互联信息技术有限公司 | Media code rate self-adaptation method and apparatus, computer device, and storage medium |
| US11228794B2 (en) | 2018-07-19 | 2022-01-18 | Beijing Dajia Internet Information Technology Co., Ltd. | Method, computer device, and storage medium for media code rate self-adaptation |
| CN109040855B (en) * | 2018-09-03 | 2021-01-29 | 重庆邮电大学 | Wireless DASH streaming media code rate smooth self-adaptive transmission method |
| CN109040855A (en) * | 2018-09-03 | 2018-12-18 | 重庆邮电大学 | A kind of wireless DASH streaming media bit rate smooth adaptive transmission method |
| CN109302623A (en) * | 2018-11-01 | 2019-02-01 | 南京大学 | A kind of transmission method based on QoE model dynamic self-adapting video |
| CN109302623B (en) * | 2018-11-01 | 2020-06-09 | 南京大学 | QoE model-based dynamic adaptive video transmission method |
| CN109788372A (en) * | 2019-01-24 | 2019-05-21 | 维沃移动通信有限公司 | A kind of playback method and relevant apparatus of Streaming Media |
| CN109788372B (en) * | 2019-01-24 | 2021-06-08 | 维沃移动通信有限公司 | Streaming media playing method and related device |
| CN111617466A (en) * | 2020-05-12 | 2020-09-04 | 咪咕文化科技有限公司 | Method and device for determining coding format and method for realizing cloud game |
| WO2022151381A1 (en) * | 2021-01-15 | 2022-07-21 | 华为技术有限公司 | Communication method and apparatus |
| CN115379221A (en) * | 2022-10-25 | 2022-11-22 | 中诚华隆计算机技术有限公司 | Streaming media data transmission method and system |
| CN115379221B (en) * | 2022-10-25 | 2022-12-20 | 中诚华隆计算机技术有限公司 | Streaming media data transmission method and system |
| CN117278538A (en) * | 2023-11-22 | 2023-12-22 | 荣耀终端有限公司 | Method for adjusting parameters of encoder and electronic equipment |
| CN117278538B (en) * | 2023-11-22 | 2024-04-16 | 荣耀终端有限公司 | Method for adjusting parameters of encoder and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106686409B (en) | 2020-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106686409A (en) | Streaming media code rate adaptive method and device, server and terminal | |
| CN103650451B (en) | The adaptive H TTP of network capacity optimization spreads | |
| US20230127341A1 (en) | Methods and apparatus to credit media presentations for online media distributions | |
| Wamser et al. | Modeling the YouTube stack: From packets to quality of experience | |
| US10506014B2 (en) | System and method for determining quality of a media stream | |
| TWI526062B (en) | Quality-aware rate adaptation techniques for dash streaming | |
| Krishnappa et al. | DASHing YouTube: An analysis of using DASH in YouTube video service | |
| CN103535047B (en) | Transmit the node in the method for video content, the network of monitoring video content stream as a stream | |
| CN110225420B (en) | Playing/decision-making method/system, medium, playing terminal and server terminal | |
| Qiu et al. | Optimizing HTTP-based Adaptive Video Streaming for wireless access networks | |
| CN110087109A (en) | Video code rate adaptive approach and device | |
| Shen et al. | An information-aware QoE-centric mobile video cache | |
| CN110809167B (en) | Video playing method and device, electronic equipment and storage medium | |
| Ul Mustafa et al. | A supervised machine learning approach for dash video qoe prediction in 5g networks | |
| CN112752117B (en) | Video caching method, device, equipment and storage medium | |
| Yarnagula et al. | QoE for mobile clients with segment-aware rate adaptation algorithm (SARA) for DASH video streaming | |
| KR102304476B1 (en) | Multipath-based block transmission system and streaming method for adaptive streaming service | |
| CN108124192A (en) | The playback method and system of HLS Streaming Medias | |
| CN111327964A (en) | Method and equipment for positioning video playing card pause | |
| JP2011061533A (en) | Content distribution system, sensory quality estimating apparatus, method, and program | |
| CN115514684B (en) | Audio jamming evaluation method and device | |
| Zhang et al. | A QOE-driven approach to rate adaptation for dynamic adaptive streaming over http | |
| CN108023864A (en) | Streaming Media method for pushing and device | |
| CN112672227A (en) | Service processing method, device, node and storage medium based on edge node | |
| KR20190048186A (en) | Multipath-based split transmission system and streaming method for adaptive streaming service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |