CN101075951A - Method for transmitting reliable data instantaneously - Google Patents
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- CN101075951A CN101075951A CNA2006100814359A CN200610081435A CN101075951A CN 101075951 A CN101075951 A CN 101075951A CN A2006100814359 A CNA2006100814359 A CN A2006100814359A CN 200610081435 A CN200610081435 A CN 200610081435A CN 101075951 A CN101075951 A CN 101075951A
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Abstract
The method comprises: 1) sending end uses the buffer to manage the files to be transmitted; 2) receiving end uses the standby buffer to manage the received files; 3) the receiving end uses the buffer to manage the files to be played; 4) the send end and the receiving end make negotiation to commonly manage the transmission and reception of files using a communication protocol. The invention can stabilize the speed of playing real time files, compensate the lost packet and reduce the bandwidth waste.
Description
One, technical field
The present invention relates to network transfer method, relate in particular to a kind of method for transmitting reliable data instantaneously that transmits instantaneity data such as video signal and message.
Two, background technology
At present, when utilizing instantaneity data such as wired or wireless networking transmission video signal, message, usually adopt for example UDP (user's data packet communications protocol), the non-reliability transmission of this communications protocol, though can reach the requirement of instantaneity,, also can't effectively remedy for the package of losing in the data transmission course, therefore also can influence receiving terminal and play audio-visual quality, especially Wi-Fi transmission is subjected to the influence of environment and causes bad information transmission the easiliest.
In addition, in the communications protocol of reliability transmission is provided, for example, TCP (transmission control communications protocol), when utilizing selectivity heavily to send the method for (selective repeat), hindered the speed of the data that receives again because of a large amount of affirmations news frame (ACK/NAK).
Moreover the traditional buffering area that transmits in data utilizes in the method, when undesirable as if the line situation, situation is off and on often arranged, and central to neglect the long data playout-delay time of neglecting weak point, allows the user feel under the weather most.
Therefore, need a kind of method for transmitting reliable data instantaneously badly, with the transmission speed and the reliability of effective enhancement instantaneity data, fix the time of delay when data is play.
Three, summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that existing product exists, and provide a kind of method for transmitting reliable data instantaneously, it can be linked up by the buffer management and the communications protocol between transmitting terminal and the receiving terminal of transmitting terminal and receiving terminal, with the effect of promoting the transmission of instantaneity data and playing; Preferred methods is, the preparation buffering area of the buffering area of transmitting terminal and receiving terminal has the capacity of equal sizes, the data total amount of possessing in the preparation buffering area of the buffering area of transmitting terminal and receiving terminal is set, but fixed delay time like this make instantaneity data broadcasting speed keep stablizing; Method for transmitting reliable data instantaneously provided by the invention, can adopt in the data transmission course at wired or wireless networking draws window (sliding window) and selectivity heavily to send the method for (selective repeat) to send and receive package, thereby can remedy the package of losing, overcome the shortcoming of the non-reliability transmission of existing Wi-Fi transmission according to this, reduce the waste of frequency range.
Another object of the present invention is to provide a kind of method for transmitting reliable data instantaneously, it adopts to concentrate and transmits the method for confirming news frames (ACK/NAK), reduces the quantity of little package, and then promotes the speed of reception data.
The objective of the invention is to realize by following technical scheme.
Method for transmitting reliable data instantaneously of the present invention is characterized in that, comprises at least:
One sends the management process of data, and wherein a transmitting terminal utilizes a buffer management desire to send data;
One receives the management process of data, and wherein a receiving terminal utilizes the received data of a preparation buffer management;
One plays the management process of data, and wherein receiving terminal utilizes a preparation buffer management desire to play data;
The communication step of one data management, the transmission and the reception of wherein linking up a coordinated management data between transmitting terminal and this receiving terminal by a communications protocol.
Aforementioned method for transmitting reliable data instantaneously, comprising following steps:
Make the buffering area and the receiving terminal preparation buffering area of described transmitting terminal have equal amount of capacity; Make the speed of data in the receiving terminal consumption preparation buffering area equal data storage that transmitting terminal will fail to send speed to the buffering area of this transmitting terminal; If the line of transmitting terminal and receiving terminal interrupts surpassing the needed time of preparation buffering area data of playing whole this receiving terminal, then remove the buffering area data of a whole transmitting terminal.
Aforementioned method for transmitting reliable data instantaneously wherein sends in the management process of data, may further comprise the steps: transmitting terminal and receiving terminal are set up line; Judge whether line is successful,, then continue to attempt if line is unsuccessful; If line success, transmitting terminal continue feeding and transmit audio data; Judge whether Network Transmission congestion phenomenon takes place, as network congestion, then that data is temporary to the buffering area of transmitting terminal; Judge whether this buffering area has been filled with data, if buffering area has been filled with data, then clear buffer; Judge whether that line interrupts, rebulid line if line interrupts or finish line.
Aforementioned method for transmitting reliable data instantaneously wherein receives in the management process of data, may further comprise the steps: receiving terminal is waited for the line from transmitting terminal, and monitoring and judge whether success of line, if line success as yet continues then to wait for that line is successful; If the line success then is stored to the audio data that receives in the preparation buffering area of receiving terminal; Judge the line situation of Network Transmission,, then the audio data of receiving is stored in the preparation buffering area of this receiving terminal if can continue line with transmitting terminal; If line interrupts, then remove the preparation buffering area, wait for line then again.
Aforementioned method for transmitting reliable data instantaneously is wherein play in the management process of data, may further comprise the steps: receiving terminal will receive data storage from transmitting terminal to the preparation buffering area of receiving terminal; Judge whether to begin to play,, judge then whether the preparation buffering area is filled with,, then continue to receive data storage from transmitting terminal to the preparation buffering area of receiving terminal if be not filled with as yet if do not begin as yet to play; If this preparation buffering area has been filled with or has begun and play, then by taking out audio data in the preparation buffering area; Judge whether can by the preparation buffering area in the taking-up data, if can, then play audio data; Otherwise, wait for that then the data storage will accept from transmitting terminal is to the preparation buffering area of receiving terminal.
Aforementioned method for transmitting reliable data instantaneously wherein in the communication step of data management, adopts and draws window (sliding window) and selectivity heavily to send (selective repeat) to send and the reception package.
Aforementioned method for transmitting reliable data instantaneously in the communication step of data management, is to adopt to draw window (sliding window) and selectivity heavily to send (selective repeat) to send and the reception package in a wireless network wherein.
Method for transmitting reliable data instantaneously of the present invention is characterized in that, a transmitting terminal exceedes one when not transmitting package during setting, and then receiving terminal retry one confirms that news frames (ACK/NAK) give transmitting terminal, with to the transmission of transmitting terminal repayment package overtime.
Method for transmitting reliable data instantaneously of the present invention is characterized in that, a transmitting terminal transmits a package with exceptional value sequence number (sequence number) and gives a receiving terminal, removes the preparation buffering area of this receiving terminal with the expression desire.
Aforesaid method for transmitting reliable data instantaneously, wherein the exceptional value sequence number is more than or equal to news windows (window) size and middle sequence number initial value sum of the place time of the meeting (session).
Aforesaid method for transmitting reliable data instantaneously, comprising: one checks the step whether package repeats, and this receiving terminal utilizes the sequence number in the package to judge whether package repeats; One abandons the step of repetition package.
Method for transmitting reliable data instantaneously of the present invention, it is characterized in that, in the data transmission course, the package that the concentrated repayment of one receiving terminal has received or do not received why, at least comprise: one produces the step of a repayment package, wherein, this receiving terminal produces the repayment package that contains a plurality of fields, and a plurality of fields are in order to represent a plurality of affirmation news frames (ACK/NAK); One transmits the step of this repayment package, and this receiving terminal transmits this repayment package to transmitting terminal.
Method for transmitting reliable data instantaneously of the present invention is characterized in that, comprises at least: when confirming that from one of receiving terminal repayment news frames (ACK/NAK) sign has one to omit the news frame, then transmit the omission news frame that this affirmation frame is indicated; When transmitting terminal is reported to the news window size of transmitting terminal by inspection, whether can the reception data and can receive how many data to learn receiving terminal.
Aforesaid method for transmitting reliable data instantaneously, comprising: the news window size that is reported to transmitting terminal when transmitting terminal by inspection, learn that this receiving terminal can not receive data, and this receiving terminal can not receive data during surpass one set during, then this transmitting terminal transmits retry news frame and gives receiving terminal.
The beneficial effect of method for transmitting reliable data instantaneously of the present invention is that it can be linked up by the buffer management and the communications protocol between transmitting terminal and the receiving terminal of transmitting terminal and receiving terminal, promotes transmission of instantaneity data and result of broadcast; Preferred methods is, the preparation buffering area of the buffering area of transmitting terminal and receiving terminal has the capacity of equal sizes, the data total amount of possessing in the preparation buffering area of the buffering area of transmitting terminal and receiving terminal is set, but fixed delay time like this make instantaneity data broadcasting speed keep stablizing; Method for transmitting reliable data instantaneously provided by the invention, can adopt in the data transmission course at wired or wireless networking draws window (sliding window) and selectivity heavily to send the method for (selective repeat) to send and receive package, thereby can remedy the package of losing, overcome the shortcoming of the non-reliability transmission of existing Wi-Fi transmission according to this, reduce the waste of frequency range; This method for transmitting reliable data instantaneously also can transmit the method for confirming news frames (ACK/NAK) by adopting to concentrate, and reduces the quantity of little package, and then promotes the speed of reception data.Method for transmitting reliable data instantaneously of the present invention, it is applicable to various wired or wireless networkings framework, also can be deployed in for example network communication agreement of various different stratum such as UDP, IP; In addition, finish the data transmission in can also be during set postponing (delay), do not influence the quality of receiving terminal video data playing and audio data, heavily send the data quantity of losing package except can effectively reducing, more can accelerate the data transmission speed, effectively utilize network bandwidth.
Four, description of drawings
Fig. 1 sends the data management method flow chart for first embodiment of the invention.
Fig. 2 receives the data management method flow chart for second embodiment of the invention.
Fig. 3 plays the data management method flow chart for third embodiment of the invention.
Fig. 4 is a fourth embodiment of the invention receiving terminal data management method flow chart.
Fig. 5 is a fifth embodiment of the invention transmitting terminal data management method flow chart.
Fig. 6 transmits the package format chart of confirming the news frame for the present invention concentrates.
Fig. 7 is for disposing the workflow schematic diagram of method for transmitting reliable data instantaneously of the present invention.
Major label description in figure: 702 transmitting terminals, 704 buffering areas, 706 receiving terminals, 708 preparation buffering areas, 710 playing devices.
Five, embodiment
Consult shown in Figure 7ly, be in order to dispose the workflow schematic diagram of method for transmitting reliable data instantaneously of the present invention.As shown in the figure, it has a transmitting terminal 702 of a buffering area 704, transmits the instantaneity data by Internet to a receiving terminal 706, and this receiving terminal has a preparation buffering area 708 and a playing device 710.Wherein, this transmitting terminal 702 utilizes buffering area 704 management desires to send data (as shown in Figure 1); The data (as shown in Figure 2) that this receiving terminal 706 utilizes preparation buffering area 708 administrative institutes to receive; This receiving terminal 706 utilizes preparation buffering area 708 management desires to play data (as shown in Figure 3); 706 transmission and receptions that pass to the coordinated management data by a communications protocol ditch of this transmitting terminal 702 and receiving terminal.
Preferred mode is that the preparation buffering area of the buffering area of transmitting terminal and receiving terminal has equal capacity size (for example, can play one second amount of capacity).Wherein, after transmitting terminal and receiving terminal begin line, begin to play after the preparation buffering area that can wait for receiving terminal is filled with, when the line of transmitting terminal and receiving terminal was smooth and easy, the maintenance of the preparation buffering area of receiving terminal was filled with state again; When the line of transmitting terminal and receiving terminal is interfered and interrupts, the speed of data equals data storage that transmitting terminal will fail the to send speed to buffering area in the receiving terminal consumption preparation buffering area, makes the data total amount of possessing in the preparation buffering area of the buffering area of transmitting terminal and receiving terminal be fixed as the capacity of a buffering area (also i.e. a preparation buffering area).If this line is of a specified duration excessively break period so that make the data in the receiving terminal preparation buffering area all be consumed (for example), and this transmitting terminal buffering area is filled with above one second, then with the data full scale clearance in the transmitting terminal buffering area to store data again.Also promptly, play a whole preparation buffering area data required time (for example, a second), all can remove the data of a whole buffer pool size as long as line interrupts surpassing.If continue to interrupt, then also regular clear to send end buffering area till line recovers, is fixed as and plays preparation buffering area data required time or its integral multiple the time of delay when data is play.Yet, in the line of networking, extremely lack when be generally common break period (for example, one second), so can set transmitting terminal buffering area and receiving terminal preparation buffer pool size size for can play the data size of a common break period.
Consult shown in Figure 1, for realizing that first embodiment of the invention sends the data management method flow chart, after transmitting terminal begins the transmission data (step 102), at first can set up line (step 104) with receiving terminal, whether successfully transmitting terminal can judge line (step 106), if line is unsuccessful by affirmation news frame and the suchlike signal of passing back from receiving terminal, then continue to attempt, till success.After setting up the line success, this transmitting terminal continues feeding and transmits audio data (step 108), during this period, transmitting terminal can continue to monitor the networking status transmission, and judge whether to take place congested phenomenon (step 110), as network congestion, then that data is temporary to buffering area (step 114), wait opportune moment and transmit.During this period, transmitting terminal can continue to monitor the situation of buffering area, and judges whether buffering area has been filled with data (step 116), if buffering area has been filled with data, and clear buffer then, the capacity of vacating is to hold the audio data (step 118) of follow-up feeding.During this period, can continue to monitor networking transmission line situation, and judge whether that line interrupts (step 112), continue to carry out the flow process of step 104 to 112, interrupt taking place, rebulid line or finish till the line (step 120) until line.
Consult shown in Figure 2, for realizing the reception data management method flow chart of second embodiment of the invention, after transmitting terminal begins the transmission data, receiving terminal is waited for the line (step 204) from transmitting terminal, and monitoring and judge whether line success (step 206), if line is not success as yet, then continue to wait for the line success; If line success then is stored to the audio data that receives in the preparation buffering area of receiving terminal (step 208).During this period, continue the line situation (step 210) of monitoring and judgement Network Transmission,, the audio data of receiving is deposited to the preparation buffering area of receiving terminal if can continue line with transmitting terminal; If line interrupts, then remove preparation buffering area (step 212), wait for line then again.
Consult shown in Figure 3, for realizing the broadcast data management method flow chart of third embodiment of the invention, receiving terminal begins to be received from (step 302) after the data that transmitting terminal sends, whether receiving terminal will receive from the data storage of transmitting terminal to the preparation buffering area of receiving terminal (step 304), and continue this preparation buffering area of monitoring and be filled with.In step 305, judge whether to have begun to play,, judge then whether this preparation buffering area is filled with (step 306),, lastingly will receive data storage from transmitting terminal to the preparation buffering area of receiving terminal if be not filled with as yet if do not begin as yet to play; If the preparation buffering area has been filled with or has begun and play, then by taking out audio data (step 308) in the preparation buffering area.Then, judge whether to deposit and can take out audio data (step 310) by preparing in the buffering area, if can, audio data (step 312) then play; Otherwise, then return step 304, wait will receive data storage from transmitting terminal to the preparation buffering area of receiving terminal.
From the above, in the step of the transmission of above-mentioned coordinated management data and reception, employing draws window (sliding window) and selectivity heavily to send (selective repeat) to send and receive package, promptly can merge hereinafter described all embodiment implements, further, the transmission of data and reception also can be carried out in a wireless network.
Consult shown in Figure 4ly, be to realize the receiving terminal data management method flow chart of fourth embodiment of the invention; As shown in the figure, behind a receiving terminal and a transmitting terminal line (step 402), this receiving terminal judges whether the package (step 404) that receives, if do not transmit package, further judge whether to have exceeded one set during (step 416), if exceeded one set during, then this receiving terminal retry one confirms that news frames (ACK/NAK) give this transmitting terminal, with to the transmission of transmitting terminal repayment package overtime; If the transmission package is arranged, further judge that the package sequence number is whether in the scope of interrogating windows (window) (step 406), if not, judge whether further that then package sequence number (sequence number) is more than or equal to news windows (Window) size and middle sequence number initial value sum (step 420) of the place time of the meeting (session), remove the preparation buffering area (step 424) of receiving terminal with the expression desire, if not, then respond one and confirm the news frame, to revise the package sequence number to transmitting terminal.In step 406, if the package sequence number is in news window (window) scope, further utilize the sequence number in the package to judge whether it is the package (step 408) of repetition, then abandon the package (step 426) of repetition, non-repetitive package is put into news window buffering area (step 410), whether the data of differentiating in the news window buffering area reaches a set amount (step 412), if reach, then this receiving terminal is by producing a repayment package that contains a plurality of fields, these a plurality of fields are in order to these a plurality of affirmation news frames of expression, the package that can concentrate repayment to receive or not receive why, reducing the quantity of little package, and then promotes the speed of reception data.As shown in Figure 6, it transmits the package form of confirming the news frame for realizing the present invention in order to concentrate.
Consult shown in Figure 5ly, be to realize the transmitting terminal data management method flow chart of fifth embodiment of the invention; As shown in the figure, when affirmation news frames (ACK/NAK) sign of judging this receiving terminal repayment has one to omit the news frame (step 504), then transmission confirms to interrogate this omission news frame (step 518) that frame indicated.Otherwise this transmitting terminal learns by the news window size that inspection is reported to this transmitting terminal whether this receiving terminal can receive data (step 506), if this receiving terminal can receive data and then take out data (step 508), then sends receiving terminal (step 510) to.Otherwise, then judge whether to wait above a setting-up time (step 512), then continue to wait for (step 516) if surpass, give this receiving terminal above then transmitting retry news frame.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (14)
1, a kind of method for transmitting reliable data instantaneously is characterized in that, comprises at least:
One sends the management process of data, and wherein a transmitting terminal utilizes a buffer management desire to send data;
One receives the management process of data, and wherein a receiving terminal utilizes the received data of a preparation buffer management;
One plays the management process of data, and wherein receiving terminal utilizes a preparation buffer management desire to play data;
The communication step of one data management, the transmission and the reception of wherein linking up a coordinated management data between transmitting terminal and this receiving terminal by a communications protocol.
2, according to the described method for transmitting reliable data instantaneously of claim 1, it is characterized in that it may further comprise the steps:
Make the buffering area and the receiving terminal preparation buffering area of described transmitting terminal have equal amount of capacity; Make the speed of data in the receiving terminal consumption preparation buffering area equal data storage that transmitting terminal will fail to send speed to the buffering area of this transmitting terminal; If the line of transmitting terminal and receiving terminal interrupts surpassing the needed time of preparation buffering area data of playing whole this receiving terminal, then remove the buffering area data of a whole transmitting terminal.
3, according to the described method for transmitting reliable data instantaneously of claim 1, it is characterized in that, in the management process of described transmission data, may further comprise the steps: transmitting terminal and receiving terminal are set up line; Judge whether line is successful,, then continue to attempt if line is unsuccessful; If line success, transmitting terminal continue feeding and transmit audio data; Judge whether Network Transmission congestion phenomenon takes place, as network congestion, then that data is temporary to the buffering area of transmitting terminal; Judge whether this buffering area has been filled with data, if buffering area has been filled with data, then clear buffer; Judge whether that line interrupts, rebulid line if line interrupts or finish line.
4, according to the described method for transmitting reliable data instantaneously of claim 1, it is characterized in that, in the management process of described reception data, may further comprise the steps: receiving terminal is waited for the line from transmitting terminal, and monitoring and judge whether success of line, if line success as yet continues then to wait for that line is successful; If the line success then is stored to the audio data that receives in the preparation buffering area of receiving terminal; Judge the line situation of Network Transmission,, then the audio data of receiving is stored in the preparation buffering area of this receiving terminal if can continue line with transmitting terminal; If line interrupts, then remove the preparation buffering area, wait for line then again.
5, according to the described method for transmitting reliable data instantaneously of claim 1, it is characterized in that, in the management process of described broadcast data, may further comprise the steps: receiving terminal will receive data storage from transmitting terminal to the preparation buffering area of receiving terminal; Judge whether to begin to play,, judge then whether the preparation buffering area is filled with,, then continue to receive data storage from transmitting terminal to the preparation buffering area of receiving terminal if be not filled with as yet if do not begin as yet to play; If this preparation buffering area has been filled with or has begun and play, then by taking out audio data in the preparation buffering area; Judge whether can by the preparation buffering area in the taking-up data, if can, then play audio data; Otherwise, wait for that then the data storage will accept from transmitting terminal is to the preparation buffering area of receiving terminal.
6, according to the described method for transmitting reliable data instantaneously of claim 1, it is characterized in that, in the communication step of described data management, adopt and draw window and selectivity heavily to send transmission and reception package.
7, according to the described method for transmitting reliable data instantaneously of claim 1, it is characterized in that, in the communication step of described data management, is to adopt to draw window and selectivity heavily to send transmission and reception package in a wireless network.
8, a kind of method for transmitting reliable data instantaneously is characterized in that, a transmitting terminal exceedes one when not transmitting package during setting, and then receiving terminal retry one confirms that the news frame gives transmitting terminal, with to the transmission of transmitting terminal repayment package overtime.
9, a kind of method for transmitting reliable data instantaneously is characterized in that, a transmitting terminal transmits a package with an exceptional value sequence number and gives a receiving terminal, removes the preparation buffering area of this receiving terminal with the expression desire.
10, method for transmitting reliable data instantaneously according to claim 9 is characterized in that, described exceptional value sequence number can interim sequence number initial value sum more than or equal to a news window size and place.
11, method for transmitting reliable data instantaneously according to claim 9 is characterized in that, comprising: one checks the step whether package repeats, and this receiving terminal utilizes the sequence number in the package to judge whether package repeats; One abandons the step of repetition package.
12, a kind of method for transmitting reliable data instantaneously, it is characterized in that, in the data transmission course, the package that the concentrated repayment of one receiving terminal has received or do not received why, at least comprise: one produces the step of a repayment package, wherein, this receiving terminal produces the repayment package that contains a plurality of fields, and a plurality of fields are in order to represent a plurality of affirmation news frames; One transmits the step of this repayment package, and this receiving terminal transmits this repayment package to transmitting terminal.
13, a kind of method for transmitting reliable data instantaneously is characterized in that, comprises at least: when confirming that from one of receiving terminal repayment the news collimation mark is shown with an omission news frame, then transmit the omission news frame that this affirmation frame is indicated; When transmitting terminal is reported to the news window size of transmitting terminal by inspection, whether can the reception data and can receive how many data to learn receiving terminal.
14, method for transmitting reliable data instantaneously according to claim 13, it is characterized in that, comprise: the news window size that is reported to transmitting terminal when transmitting terminal by inspection, learn that this receiving terminal can not receive data, and this receiving terminal can not receive data during surpass one set during, then this transmitting terminal transmits retry news frame and gives receiving terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100814359A CN101075951A (en) | 2006-05-19 | 2006-05-19 | Method for transmitting reliable data instantaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100814359A CN101075951A (en) | 2006-05-19 | 2006-05-19 | Method for transmitting reliable data instantaneously |
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| CN101075951A true CN101075951A (en) | 2007-11-21 |
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| CNA2006100814359A Pending CN101075951A (en) | 2006-05-19 | 2006-05-19 | Method for transmitting reliable data instantaneously |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143606A1 (en) * | 2014-03-24 | 2015-10-01 | 华为技术有限公司 | Radio access network device, user equipment and buffer status reporting method |
| CN109819310A (en) * | 2019-01-25 | 2019-05-28 | 青岛海信传媒网络技术有限公司 | A kind of stream medium data playback method and device |
-
2006
- 2006-05-19 CN CNA2006100814359A patent/CN101075951A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143606A1 (en) * | 2014-03-24 | 2015-10-01 | 华为技术有限公司 | Radio access network device, user equipment and buffer status reporting method |
| CN109819310A (en) * | 2019-01-25 | 2019-05-28 | 青岛海信传媒网络技术有限公司 | A kind of stream medium data playback method and device |
| CN109819310B (en) * | 2019-01-25 | 2021-07-27 | 青岛海信传媒网络技术有限公司 | Streaming media data playing method and device |
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