CN106603480B - The transmission method and device of files in stream media - Google Patents
The transmission method and device of files in stream media Download PDFInfo
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- CN106603480B CN106603480B CN201610560234.0A CN201610560234A CN106603480B CN 106603480 B CN106603480 B CN 106603480B CN 201610560234 A CN201610560234 A CN 201610560234A CN 106603480 B CN106603480 B CN 106603480B
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- data packet
- frame data
- image frame
- transmit weight
- network quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention is suitable for technical field of video transmission, provides the transmission method and device of files in stream media, comprising: is streaming media network settings network quality values；During streaming media, the network quality values are subtracted the first numerical value by one image frame data packet of every transmission, are often received a reception about image frame data packet and are responded, the network quality values are added second value；When the network quality values are down to the first preset threshold, heartbeat packet is only sent；It often receives a heartbeat packet to respond, the network quality values is added into the second value, until the network quality values reach the second preset threshold, restore to send image frame data packet.The present invention improves the real-time and fluency of streaming media.
Description
Technical field
The invention belongs to technical field of video transmission more particularly to the transmission methods and device of files in stream media.
Background technique
The design of communication protocol must by network it is unreliable based on, still can be worked normally under extreme network environment
Agreement is only healthy and strong agreement.The network scenarios of transmission of video is more demanding to real-time and fluency, for transmission of video
The problems such as delay for usually occurring in the process, Caton, network blockage, under the network scenarios of low bandwidth, with greater need for reasonable benefit
With bandwidth resources, to guarantee the real-time and fluency of transmission of video.
Existing streaming media transmission protocol is both for specific network bandwidth, when network blocks or bandwidth wretched insufficiency
When direct abort communication, cause transmission of video to stop.
Summary of the invention
In view of this, the embodiment of the invention provides the transmission method of files in stream media and device, to solve existing stream
Media transmission protocol will lead to the problem of transmission of video stops in the case where network bandwidth conditions difference.
In a first aspect, providing a kind of transmission method of files in stream media, comprising:
For streaming media network settings network quality values；
During streaming media, the network quality values are subtracted the first number by one image frame data packet of every transmission
Value often receives a reception about image frame data packet and responds, the network quality values are added second value；
When the network quality values are down to the first preset threshold, heartbeat packet is only sent；
It often receives a heartbeat packet to respond, the network quality values is added into the second value, until the network matter
Magnitude reaches the second preset threshold, restores to send image frame data packet, first preset threshold is less than the described second default threshold
Value.
Optionally, before the streaming media, the method also includes:
It is image frame data packet assignment Transmit weight in Streaming Media acquisition and cataloged procedure；
Image frame data packet of every transmission, the corresponding Transmit weight of the image frame data packet subtract 1；
When the Transmit weight of image frame data packet is 0 or receives reception of the opposite end about the image frame data packet
Response stops sending the image frame data packet.
Optionally, described to include: for image frame data packet assignment Transmit weight
It is the second Transmit weight of non-I frame data packet assignment for I frame data packet the first Transmit weight of assignment, first hair
Weight is sent to be greater than second Transmit weight.
Optionally, first Transmit weight is 2 times of second Transmit weight.
Optionally, in the retransmission processes of image frame data packet, the re-transmission interval of image frame data packet and the number of image frames
It is positively correlated according to current number of retransmissions is wrapped.
Second aspect provides a kind of transmitting device of files in stream media, comprising:
Setting unit, for being streaming media network settings network quality values；
The first adjustment unit is used for one image frame data packet of every transmission, by network during streaming media
Mass value subtracts the first numerical value, often receives a reception about image frame data packet and responds, the network quality values are added
Upper second value；
Heartbeat packet transmission unit, for only sending heartbeat packet when the network quality values are down to the first preset threshold；
Second adjustment unit is responded for often receiving a heartbeat packet, by the network quality values plus second number
Value is restored to send image frame data packet, first preset threshold is small until the network quality values reach the second preset threshold
In second preset threshold.
Optionally, described device further include:
Assignment unit, for being image frame data packet assignment Transmit weight in Streaming Media acquisition and cataloged procedure；
Third adjustment unit is used for image frame data packet of every transmission, the corresponding transmission of the image frame data packet
Weight subtracts 1；
Stop unit is 0 for the Transmit weight when image frame data packet or receives opposite end about the image
The reception of frame data packet responds, and stops sending the image frame data packet.
Optionally, the assignment unit is specifically used for:
It is the second Transmit weight of non-I frame data packet assignment for I frame data packet the first Transmit weight of assignment, first hair
Weight is sent to be greater than second Transmit weight.
Optionally, first Transmit weight is 2 times of second Transmit weight.
Optionally, in the retransmission processes of image frame data packet, the re-transmission interval of image frame data packet and the number of image frames
It is positively correlated according to current number of retransmissions is wrapped.
In embodiments of the present invention, by the way that network quality values are arranged and dynamically adjust this in the transmission process of Streaming Media
Network quality values enable whole process to know Network status in real time, execute the Streaming Media matched with Network status and pass
Defeated strategy improves the real-time and fluency of streaming media.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the implementation flow chart of the transmission method of files in stream media provided in an embodiment of the present invention；
Fig. 2 is the realization stream of transmission method sender's data transmission procedure of files in stream media provided in an embodiment of the present invention
Cheng Tu；
Fig. 3 is the realization stream of transmission method sender's DRP data reception process of files in stream media provided in an embodiment of the present invention
Cheng Tu；
Fig. 4 is the implementation process that the transmission method image frame data packet of files in stream media provided in an embodiment of the present invention retransmits
Figure；
Fig. 5 is the specific implementation of the transmission method video acquisition cataloged procedure of files in stream media provided in an embodiment of the present invention
Flow chart；
Fig. 6 is the structural block diagram of the transmitting device of files in stream media provided in an embodiment of the present invention.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
Fig. 1 shows the implementation process of the transmission method of files in stream media provided in an embodiment of the present invention, and details are as follows:
S101 is streaming media network settings network quality values.
S102, during streaming media, the network quality values are subtracted by one image frame data packet of every transmission
One numerical value often receives a reception about image frame data packet and responds, the network quality values are added second value.
S103 only sends heartbeat packet when the network quality values are down to the first preset threshold.
S104, often receives a heartbeat packet and responds, and the network quality values is added the second value, until the net
Network mass value reaches the second preset threshold, restores to send image frame data packet, it is pre- that first preset threshold is less than described second
If threshold value.
In embodiments of the present invention, network quality values are to execute the reference frame of streaming media strategy, if network quality values
Height, represents that current network state is good, then the transmission of image frame data packet can be executed normally；If network quality values are low, represent
Current network state is poor, it is understood that there may be congestion, then the transmission of image frame data packet can be suspended, until network state is restored.
Based on embodiment shown in FIG. 1, specifically, as shown in Fig. 2, the data transmission procedure during streaming media is such as
Under:
Firstly, initializing to network quality values, an initial network quality values are assigned.
In S201, the quality of network quality is judged, it in embodiments of the present invention, will be current by the way that preset threshold is arranged
Network quality values be compared with preset threshold, to determine the quality of network quality.
Specifically, when network quality values are higher than the first preset threshold, (illustratively, which be can be set
For 0), it is believed that network quality is good, then as shown in S202, the normal transmission for executing image frame data packet, in transmit queue
In find a Transmit weight highest and reach the image frame data packet of sending time and sent.And as shown in S203,
After sending action execution, the transmission times and timestamp of the image frame data packet are updated, and network quality values are subtracted the
One numerical value is (illustratively, as shown in Fig. 2, first numerical value can be for 1).And when network quality values are down to the first preset threshold
When, it is believed that network quality is poor, congestion, then stopping sending image frame data packet as shown in S204, and is changed to send heartbeat
Packet, the transmission interval of the heartbeat packet can be 1 second.If Correspondent Node receives heartbeat packet, can be returned to the sender of heartbeat packet
One heartbeat packet is responded, and sender can add current network quality values when often receiving a heartbeat packet response
(illustratively, which can be 2), until network quality values reach the second preset threshold, then to restore to send out to second value
Sending image frame data packet, (second preset threshold needs to be greater than the first preset threshold, just extensive when Network status is preferable to guarantee
The transmission of complex pattern frame data packet).
Based on embodiment shown in FIG. 1, specifically, as shown in figure 3, the data of the sender during streaming media connect
Receipts process is as follows:
For the sender in streaming media, a data packet is often received to it, if the data packet is heartbeat
Packet is responded, then as shown in S301, for network quality values plus second value (illustratively, as shown in figure 3, the second value can
Think 2), if the data packet is the reception response about image frame data packet, as shown in S302, in addition to being similarly network quality
The reception can also be responded corresponding image frame data packet and removed from transmit queue, with thorough by value plus other than second value
Complete the transmission of the image frame data packet.
In addition, hereinbefore also referring to, for each image frame data packet, there are its corresponding Transmit weight, this portion
Point Transmit weight is used to control the retransmission mechanism of image frame data packet, as shown in Figure 4:
It is image frame data packet assignment Transmit weight in Streaming Media acquisition and cataloged procedure in S401.
The operation for carrying out assignment for image frame data packet carries out during video acquisition, as an implementation of the invention
Example, as shown in figure 5, first determining whether the video frame is I frame, if it is, being for the video frame for currently acquiring and encoding
I frame data packet the first Transmit weight of assignment, if the video frame is non-I frame (such as B frame and P frame), for the video requency frame data packet
The second Transmit weight of assignment, wherein the first Transmit weight is greater than the second Transmit weight, it is preferable that the first Transmit weight can be with
It is 2 times of the second Transmit weight.After for video frame assignment Transmit weight, sending times are reset, and be added for the data packet
Timestamp is added in transmit queue later.Way shown in fig. 5 is the particularity consideration for encoding video pictures, that is,
If I frame loss can not also be made even when the B frame and P frame after the I frame are received during streaming media
With, therefore, the re-transmission weight of height-regulating I frame in transmission strategy, to guarantee that I frame is sent to the success rate of opposite end.
In S402, image frame data packet of every transmission, the corresponding Transmit weight of the image frame data packet subtracts 1.
In S403, when the Transmit weight of image frame data packet is 0 or receives opposite end about the number of image frames
It is responded according to the reception of packet, stops sending the image frame data packet.
In embodiments of the present invention, one image frame data packet of every transmission then can be the transmission route of the image frame data packet
Subtract 1 again, until the reception for receiving opposite end (i.e. the recipient of data packet) about the image frame data packet responds, represents the image
Frame data packet is received by opposite end, just stops retransmitting the image frame data packet；Alternatively, working as the Transmit weight of the image frame data packet
It has been kept to 0, has also stopped sending the image frame data packet.
In conjunction with the corresponding embodiment of Fig. 4 and Fig. 5, since the Transmit weight of I frame is larger, but in retransmission processes, I frame and B
Frame, P frame be in the value of each Transmit weight reduction it is the same, so, so that it may guarantee that the number of retransmissions of I frame is higher than
B frame and P frame, to guarantee that I frame is sent to the success rate of opposite end.
In addition, as an embodiment of the present invention, in the retransmission processes of image frame data packet, image frame data packet
It retransmits interval to be positively correlated with the current number of retransmissions of the image frame data packet, that is, for the same picture frame in transmit queue
Data packet, the number retransmitted is more, in this way can be with then the transmission interval for sending the image frame data packet next time is bigger
Streaming Media Caton phenomenon caused by sender is effectively prevented from due to frequently retransmitting some image frame data packet.
The embodiment of the present invention can be used for the transmission of video based on EDGE network, 3G network or WiFi, by the way that network matter is arranged
Magnitude simultaneously dynamically adjusts the network quality values in the transmission process of Streaming Media, and whole process is enabled to know net in real time
Network situation executes the streaming media strategy matched with Network status, improves the real-time and fluency of streaming media.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
Corresponding to the transmission method of files in stream media described in foregoing embodiments, Fig. 6 shows offer of the embodiment of the present invention
Files in stream media transmitting device structural block diagram, for ease of description, only the parts related to this embodiment are shown.
Referring to Fig. 6, which includes:
Setting unit 61 is streaming media network settings network quality values；
The first adjustment unit 62, during streaming media, one image frame data packet of every transmission, by the network matter
Magnitude subtracts the first numerical value, often receives a reception about image frame data packet and responds, the network quality values are added
Second value；
Heartbeat packet transmission unit 63 only sends heartbeat packet when the network quality values are down to the first preset threshold；
Second adjustment unit 64, often receives a heartbeat packet and responds, and the network quality values are added the second value,
Until the network quality values reach the second preset threshold, restore to send image frame data packet, first preset threshold is less than
Second preset threshold.
Optionally, described device further include:
Assignment unit is image frame data packet assignment Transmit weight in Streaming Media acquisition and cataloged procedure；
Third adjustment unit, image frame data packet of every transmission, the corresponding Transmit weight of the image frame data packet
Subtract 1；
Stop unit, when the Transmit weight of image frame data packet is 0 or receives opposite end about the number of image frames
It is responded according to the reception of packet, stops sending the image frame data packet.
Optionally, the assignment unit is specifically used for:
It is the second Transmit weight of non-I frame data packet assignment for I frame data packet the first Transmit weight of assignment, first hair
Weight is sent to be greater than second Transmit weight.
Optionally, first Transmit weight is 2 times of second Transmit weight.
Optionally, in the retransmission processes of image frame data packet, the re-transmission interval of image frame data packet and the number of image frames
It is positively correlated according to current number of retransmissions is wrapped.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, system embodiment described above is only schematical, for example, the division of the module or unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be with
In conjunction with or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit or
Communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the technical solution of the embodiment of the present invention
Substantially all or part of the part that contributes to existing technology or the technical solution can be with software product in other words
Form embody, which is stored in a storage medium, including some instructions use so that one
Computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) execute this hair
The all or part of the steps of bright each embodiment the method for embodiment.And storage medium above-mentioned include: USB flash disk, mobile hard disk,
Read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic
The various media that can store program code such as dish or CD.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although referring to aforementioned reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of transmission method of files in stream media characterized by comprising
For streaming media network settings network quality values；
During streaming media, the network quality values are subtracted the first numerical value, often by one image frame data packet of every transmission
It receives a reception about image frame data packet to respond, the network quality values is added into second value；
When the network quality values are down to the first preset threshold, heartbeat packet is only sent；
It often receives a heartbeat packet to respond, the network quality values is added into the second value, until the network quality
Value reaches the second preset threshold, restores to send image frame data packet, first preset threshold is less than second preset threshold.
2. the method as described in claim 1, which is characterized in that before the streaming media, the method also includes:
It is image frame data packet assignment Transmit weight in Streaming Media acquisition and cataloged procedure；
Image frame data packet of every transmission, the corresponding Transmit weight of the image frame data packet subtract 1；
When the Transmit weight of image frame data packet is 0 or receives reception sound of the opposite end about the image frame data packet
It answers, stops sending the image frame data packet.
3. method according to claim 2, which is characterized in that described to include: for image frame data packet assignment Transmit weight
It is the second Transmit weight of non-I frame data packet assignment, first transmission route for I frame data packet the first Transmit weight of assignment
It is great in second Transmit weight.
4. method as claimed in claim 3, which is characterized in that first Transmit weight is the 2 of second Transmit weight
Times.
5. method according to claim 1 or 2, which is characterized in that in the retransmission processes of image frame data packet, number of image frames
It is positively correlated according to the re-transmission interval and the current number of retransmissions of the image frame data packet of packet.
6. a kind of transmitting device of files in stream media characterized by comprising
Setting unit, for being streaming media network settings network quality values；
The first adjustment unit is used for one image frame data packet of every transmission, by network quality during streaming media
Value subtracts the first numerical value, often receives a reception about image frame data packet and responds, by the network quality values plus the
Two numerical value；
Heartbeat packet transmission unit, for only sending heartbeat packet when the network quality values are down to the first preset threshold；
Second adjustment unit, is responded for often receiving a heartbeat packet, the network quality values is added the second value, directly
Reach the second preset threshold to the network quality values, restores to send image frame data packet, first preset threshold is less than institute
State the second preset threshold.
7. device as claimed in claim 6, which is characterized in that described device further include:
Assignment unit, for being image frame data packet assignment Transmit weight in Streaming Media acquisition and cataloged procedure；
Third adjustment unit is used for image frame data packet of every transmission, the corresponding Transmit weight of the image frame data packet
Subtract 1；
Stop unit is 0 for the Transmit weight when image frame data packet or receives opposite end about the number of image frames
It is responded according to the reception of packet, stops sending the image frame data packet.
8. device as claimed in claim 7, which is characterized in that the assignment unit is specifically used for:
It is the second Transmit weight of non-I frame data packet assignment, first transmission route for I frame data packet the first Transmit weight of assignment
It is great in second Transmit weight.
9. device as claimed in claim 8, which is characterized in that first Transmit weight is the 2 of second Transmit weight
Times.
10. device as claimed in claims 6 or 7, which is characterized in that in the retransmission processes of image frame data packet, picture frame
The re-transmission interval of data packet is positively correlated with the current number of retransmissions of the image frame data packet.
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| CN109429246A (en) * | 2017-08-31 | 2019-03-05 | 中国移动通信有限公司研究院 | A kind of sending method of business datum, method of reseptance and relevant device |
| CN109429248B (en) * | 2017-09-04 | 2022-06-03 | 中国移动通信有限公司研究院 | Service data processing method, base station and mobile communication terminal |
| CN111934828B (en) * | 2020-06-30 | 2021-12-10 | 浙江云朵网科技股份有限公司 | Data transmission method and system based on OFDMA mode |
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| CN102511182A (en) * | 2010-06-22 | 2012-06-20 | 华为技术有限公司 | Methods and devices for controlling congestion |
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