CN107018150A - Data transmission method and device - Google Patents

Abstract

Embodiments of the present invention provide a data transmission method and device, the data transmission method is applied to a first terminal, the first terminal is provided with a streaming media database, and the data transmission method includes: the first terminal transfers the first terminal to Comparing the streaming media data with the standard streaming media data in the streaming media database to obtain differential data, the first terminal sends the differential data to the second terminal for the second terminal to use according to the differential data Restore to obtain the first streaming media data. The embodiment of the present invention can improve the efficiency of data transmission and reduce the transmission cost.

Description

Data transmission method and device

technical field

The present invention relates to the field of communication technology, in particular to a data transmission method and device.

Background technique

With the development of communication technology and the wide application of various electronic devices, users can communicate and share information resources through data interaction between electronic devices, thereby improving the quality of life. In the process of data interaction between electronic devices, it is usually necessary to send or receive streaming media data sent by other electronic devices, such as online video playback, remote control, screen sharing, etc., but since streaming data usually includes images Data, the amount of data is generally large, in the process of transmission, the transmission efficiency may also be reduced due to bandwidth restrictions, and the transmission cost of transmitting streaming media data may also be increased. Therefore, a data transmission method is urgently needed.

In the prior art, when the first terminal sends streaming media data to the second terminal, on the one hand, data transmission can be performed through a relatively high bandwidth or a dedicated network, thereby ensuring transmission efficiency. On the other hand, streaming media data can be transmitted through a lower bandwidth to save transmission costs.

Although data transmission through a higher bandwidth or a dedicated network can ensure the transmission efficiency of streaming media data, increasing the bandwidth or setting up a dedicated network may greatly increase the transmission cost, while transmitting streaming media data through a lower bandwidth, Otherwise, the transmission efficiency of streaming media data may be reduced. That is, it is difficult to improve transmission efficiency while saving transmission cost in the existing technology.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a data transmission method and device for overcoming the above problems or at least partially solving the above problems.

According to one aspect of the present invention, a data transmission method is provided, which is applied to a first terminal, and the first terminal is provided with a streaming media database, and the data transmission method includes:

The first terminal compares the first streaming data with the standard streaming data in the streaming database to obtain differential data;

The first terminal sends the differential data to the second terminal, so that the second terminal restores and obtains the first streaming media data according to the differential data.

According to another aspect of the present invention, a data transmission method is provided, which is applied to a second terminal, the second terminal is provided with a streaming media database, and the data transmission method includes:

The second terminal receives differential data from the first terminal;

The second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data in the streaming media database.

According to another aspect of the present invention, a data transmission device is provided, which is applied to a first terminal, the first terminal is provided with a streaming media database, and the data transmission device includes:

A comparison module, used for the first terminal to compare the first streaming data with the standard streaming data in the streaming database to obtain differential data;

The first sending module is used for the first terminal to send the differential data to the second terminal, so that the second terminal can restore and obtain the first streaming media data according to the differential data.

According to another aspect of the present invention, a data transmission device is provided, which is applied to a second terminal, and the second terminal is provided with a streaming media database, and the data transmission device includes:

A first receiving module, configured for the second terminal to receive differential data from the first terminal;

The restore module is used for the second terminal to restore the first stream media data according to the differential data and the standard stream media data in the stream media database.

According to another aspect of the present invention, a terminal is provided, including: a memory, a processor, and a data transmission program stored on the memory and operable on the processor, the data transmission program is processed by the processor Implement the steps of the data transmission method when the controller executes.

According to another aspect of the present invention, a computer-readable storage medium is provided. A data transmission program is stored on the computer-readable storage medium. When the data transmission program is executed by a processor, the above-mentioned data transmission method is implemented. step.

In the embodiment of the present invention, first, the first terminal can compare the first streaming media data with the standard streaming media data, and obtain the differential data between the first streaming media data and the standard streaming media data, because the data volume of the differential data is usually less than The first streaming media data, therefore, compared with transmitting the first streaming media data, transmitting the differential data can reduce the amount of data to be transmitted, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, assign the difference to the second terminal, so that the second terminal can restore the first streaming media data according to the difference data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured .

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the specific embodiments of the present invention are enumerated below.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating a preferred embodiment and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same parts. In the attached picture:

FIG. 1 shows a schematic diagram of an application scenario of data transmission according to an embodiment of the present invention;

FIG. 2 shows a flowchart of a data transmission method according to an embodiment of the present invention;

FIG. 3 shows a flowchart of another data transmission method according to an embodiment of the present invention;

FIG. 4 shows a flowchart of another data transmission method according to an embodiment of the present invention;

Fig. 5 shows a schematic diagram of a first streaming media data according to an embodiment of the present invention;

Fig. 6 shows a schematic diagram of a standard streaming media data according to an embodiment of the present invention;

Fig. 7 shows a schematic diagram of differential data according to an embodiment of the present invention;

Fig. 8 shows a block diagram of a data transmission device according to an embodiment of the present invention;

FIG. 9 shows a block diagram of another data transmission device according to an embodiment of the present invention;

Fig. 10 shows a block diagram of a first terminal according to an embodiment of the present invention;

Fig. 11 shows a block diagram of another first terminal according to an embodiment of the present invention;

Fig. 12 shows a block diagram of a second terminal according to an embodiment of the present invention;

Fig. 13 shows a block diagram of another second terminal according to an embodiment of the present invention.

detailed description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the drawings show exemplary embodiments of the invention, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

Embodiment one

Referring to FIG. 1 , it shows a schematic diagram of an application scenario of data transmission according to an embodiment of the present invention, including a first terminal 01 and a second terminal 02, and the first terminal 01 and the second terminal 02 can be connected through a network.

The first terminal 01 or the second terminal 02 can be electronic devices such as mobile phones and computers, that is, when one electronic device needs to send streaming data to another electronic device, the electronic device used to send streaming data can be used as the first terminal 01 , the electronic device used to receive streaming media data can serve as the second terminal 02. Of course, for the same electronic device, the electronic device can serve as the first terminal 01 to send streaming media data, and can also serve as the second terminal 02 to receive streaming media data.

Since the data volume of streaming media data is usually large, in order to improve transmission efficiency while saving transmission costs, the first terminal 01 and the second terminal 02 can pre-store a streaming media database, which can include standard streams media data. For the first streaming data to be transmitted, if standard streaming data similar to the first streaming data is stored in the streaming database, the first terminal 01 may not directly send the first streaming data to the second terminal 02, but Comparing the first streaming media data with the standard streaming media data to obtain differential data, sending the differential data to the second terminal 02, so that the second terminal 02 can restore the standard streaming media data according to the differential data, Obtain the first streaming media data.

Embodiment two

Referring to FIG. 2 , it shows a flow chart of a data transmission method according to an embodiment of the present invention, which is applied to a first terminal, and the first terminal is provided with a streaming media database, and the data transmission method includes:

In step 201, the first terminal compares the first streaming data with the standard streaming data in the streaming database to obtain differential data.

In order to reduce the amount of data to be transmitted and avoid the problems of low transmission efficiency or high transmission cost that may be caused by directly transmitting the first streaming media data to the second terminal, the first streaming media data may not be directly transmitted to the second terminal, but Comparing the first streaming media with the standard streaming data in the streaming database, using the streaming data that differs between the first streaming data and the standard streaming data as differential data, and transmitting the differential data to the second terminal .

Wherein, the first streaming media data is the streaming media data to be transmitted, and the first streaming media data may include image data, for example, when the data transmission method is applied in remote control, the first streaming media data may be the control terminal of the first terminal or serve as Image data corresponding to the currently displayed content of the controlled terminal of the first terminal. The streaming media database may be a preset streaming media database, in which standard streaming media data is stored, and the standard streaming media data may be used for comparison with the first streaming media data. The differential data is the data used to explain the difference between the first streaming media data and the standard streaming data. In addition, since the differential data only needs to explain the difference between the first streaming media data and the standard streaming data, it is different from the first streaming media data. Compared with the data, the data volume of the differential data is usually small.

Algorithms such as SIFT (Scale Invariant Feature Transform, scale invariant feature transformation), OPENCV (Open Source Computer Vision Library, open source computer vision library) can be used to compare the first streaming media data with the standard streaming media data.

In the embodiment of the present invention, preferably, in order to ensure that the second terminal can accurately obtain the first streaming media data and improve the reliability of data transmission, the first terminal may send the streaming media database to the second terminal for the second terminal The terminal stores the streaming media database.

In another preferred embodiment of the present invention, preferably, the first terminal can obtain the first streaming media data from a third-party server in advance (for example, before comparing the first streaming media data with the standard streaming media data in the streaming media database). Standard image database. Wherein, the third-party server may be a server that provides data transmission services for the first terminal and the second terminal, and of course, may also be other servers.

In the embodiment of the present invention, preferably, in order to improve the accuracy of comparing the first streaming media data with the standard streaming media data, thereby improving the reliability of data transmission, the format of the first streaming media data may be the same as that of the standard streaming media data, For example, the formats of the first streaming media data and the standard streaming data may both be in JPEG (Joint Photographic Experts Group, Joint Photographic Experts Group) format. In another embodiment of the present invention, preferably, the format of the differential data may be the same as that of the first streaming media data and the standard streaming data.

Step 202, the first terminal sends the differential data to a second terminal, so that the second terminal can restore and obtain the first streaming media data according to the differential data.

Since the differential data can explain the difference between the first streaming media data and the standard streaming media data, the differential data can be sent to the second terminal so that the second terminal can restore the standard streaming media data according to the differential data, thereby Obtain the first streaming media data. That is, by sending a small amount of differential data, the second terminal can obtain the first streaming media data with a large amount of data, which reduces the amount of data to be transmitted, thereby not only reducing the cost of data transmission, but also improving Efficiency of data transfer.

Wherein, the streaming media database is also preset in the second terminal. Certainly, in the embodiment of the present invention, the second terminal may also obtain the streaming media database sent by the first terminal. Or, in another preferred embodiment of the present invention, the second terminal can also obtain the standard image database from a third-party server in advance (for example, before restoring the standard image data according to the image restoration information), and obtain The obtained standard image database is stored locally.

In the embodiment of the present invention, first, the first terminal can compare the first streaming media data with the standard streaming media data, and obtain the differential data between the first streaming media data and the standard streaming media data, because the data volume of the differential data is usually less than The first streaming media data, therefore, compared with transmitting the first streaming media data, transmitting the differential data can reduce the amount of data to be transmitted, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, assign the difference to the second terminal, so that the second terminal can restore the first streaming media data according to the difference data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of output transmission can be ensured .

Embodiment three

Referring to FIG. 3 , it shows a flow chart of a data transmission method according to an embodiment of the present invention, which is applied to a second terminal, and the second terminal is provided with a streaming media database, and the data transmission method includes:

Step 301, the second terminal receives differential data from the first terminal.

The differential data is the data obtained by comparing the first streaming media data with the standard streaming media data, which can explain the difference between the first streaming media data and the standard streaming media data, and the data volume of the differential data is usually smaller than that of the first streaming media data. media data, so in order to improve data transmission efficiency and reduce transmission costs, the second terminal can receive the differential data, and restore the first streaming media data according to the differential data.

Wherein, the streaming media database may be a preset streaming media database. Of course, in another preferred embodiment of the present invention, the second terminal may also receive the streaming media database from the first terminal, and store the received streaming media database. Or, in another preferred embodiment of the present invention, the second terminal may obtain the standard image database from a third-party server in advance.

Step 302, the second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data in the streaming media database.

Wherein, the standard streaming media data can be restored to obtain the first streaming media data according to the differential data through algorithms such as SIFT or OPEN CV.

In the embodiment of the present invention, firstly, the second terminal can receive the differential data sent by the first terminal. Since the data volume of the differential data is usually smaller than that of the first streaming media data, compared with the transmission of the first streaming media data, the transmission of the differential data The amount of data to be transmitted can be reduced, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, the second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured.

Embodiment Four

Referring to FIG. 4 , it shows a flowchart of a data transmission method according to an embodiment of the present invention, which is applied to the interaction between the first terminal and the second terminal. The data transmission method includes:

Step 401, the first terminal acquires streaming media data to be transmitted as the first streaming media data.

Wherein, the first terminal may acquire image data currently displayed on a display screen of the first terminal as the first streaming media data, or acquire stored streaming media data from a local storage as the first streaming media data. Of course, in practical applications, the first terminal may also acquire the streaming media data to be transmitted as the first streaming media data in other ways.

In the embodiment of the present invention, preferably, in order to reduce the amount of data when transmitting the first streaming media data, thereby reducing transmission costs and improving transmission efficiency, the first streaming media data may be image data in a lossy compression format.

For example, the first streaming media data may be image data in JPEG format, or image data in a format conforming to H.26x standard, H.320 standard or MPEG (Moving Picture Experts Group, moving picture experts group) standard.

In step 402, the first terminal judges whether there is standard streaming data in the streaming database that has a similarity with the first streaming data greater than a preset value, and if yes, execute step 403; otherwise, execute step 405.

Because if the similarity between the first streaming media data and the standard streaming data is too low, that is, the difference between the first streaming media data and the standard streaming data is relatively large, the amount of differential data to be transmitted may be large, so In order to improve the efficiency of data transmission and reduce the cost of data transmission, the first terminal may judge whether the streaming media database includes standard image data whose similarity with the first streaming media data is greater than the preset value.

Wherein, the degree of similarity is used to describe the degree of similarity between the first streaming media data and the standard streaming media data, and when the similarity degree is greater than the preset value, it can be explained that the first streaming media data is similar to the standard streaming media data. The similarity between the first streaming media data and the standard streaming media data can be determined by algorithms such as SIFT or OPEN CV.

In the embodiment of the present invention, preferably, the preset value can be determined in advance by relevant technical personnel. For example, the preset value can be used to determine whether there is a criterion in the streaming media database that has a similarity with the first streaming media data greater than the preset value. Before streaming data, receive the input value to get. The preset value may be 70%, 75% or 80%, of course, in practical applications, the preset value may also be other values.

For example, the streaming media database stored in the first terminal includes standard streaming data 1 or standard streaming data 2, and the preset value is 70%. For the first streaming data 1, determine that the similarity between the first streaming data 1 and the standard streaming data 1 is 60%, 60%<70%, the first streaming data 1 is not similar to the standard streaming data 1, determine The similarity between the first streaming media data 1 and the standard streaming media data 2 is 80%, where 80%>70%, the first streaming media data 1 is similar to the standard streaming data 1 .

In the embodiment of the present invention, preferably, the format of the standard streaming media data may be the same as that of the first streaming media data, that is, the standard streaming media data may also be image data in a lossy compression format.

Step 403, the first terminal compares the first streaming data with standard streaming data in the streaming database to obtain differential data, and sends the differential data to the second terminal.

Wherein, the manner of comparing the first streaming media data with the standard streaming media data can be the same as the method of comparing the first streaming media data with the standard streaming media data in step 201 in the second embodiment, and will not repeat them here. .

In the embodiment of the present invention, preferably, in order to improve the accuracy of obtaining differential data, ensure that the amount of data to be transmitted can be effectively reduced, improve the efficiency of data transmission, and reduce transmission costs, the first terminal can use the Performing a difference between the first streaming media data and the standard streaming media data to obtain the differential data.

Since image data usually includes a collection of values of multiple pixels, for example, the image data of a grayscale image can include a collection of grayscale values of multiple pixels, and a color image can include the corresponding R channel, G channel, and B channel, etc. A collection of pixel values of three channels, and when the first streaming media data is similar to the standard streaming media data, the values of the pixels in the similar area between the first streaming media data and the standard streaming media data are also the same. Therefore, the first streaming data and the standard streaming data can be differentiated to obtain differential data between the first streaming data and the standard streaming data, and the differential data can explain that the first streaming data is different from the standard streaming data multiple pixels, and the difference between the multiple pixels in the first streaming media data and the standard streaming media data. Since the differential data is the data of the part of the data difference between the first streaming media data and the standard streaming data, when the similarity between the first streaming media data and the standard streaming data is higher, the differential data The smaller the amount of data, the smaller the amount of data sent by the first terminal to the second terminal can be further reduced, thereby reducing costs and improving transmission efficiency.

In the embodiment of the present invention, preferably, the difference between the first streaming media data and the standard streaming media data can be performed by using the cvSub() function or the cvAbsDiff() function included in the OPEN CV. Wherein, the difference between the first streaming media data and the standard streaming media data may be the value of each pixel of the standard streaming media data, subtracting the corresponding value of each pixel in the first streaming media data, or the value of the first streaming media data The value of each pixel of the streaming media data is subtracted from the corresponding value of each pixel in the standard streaming media data.

For example, the first streaming media data 1 is shown in Table 1 below, and the standard streaming media data 3 is shown in Table 2 below. The difference between the first streaming media data 1 and the standard streaming media data 3 is obtained to obtain differential data 1 as shown in Table 3 or differential data 2 as shown in Table 4 below. Among them, the differential data 1 can be obtained by subtracting the value of each pixel of the first streaming data 1 from the value of the corresponding pixel of the standard streaming data 3, and the differential data 2 can be obtained by subtracting the value of each pixel of the standard streaming data 3 from the first streaming data 1 The value of the corresponding pixel is obtained.

Table 1

27 39 97 135 35 37 85 159 158 51 79 177 210 69 101 201

Table 2

27 39 97 183 35 99 85 159 158 51 222 177 238 69 101 201

table 3

0 0 0 -48 0 -62 0 0 0 0 -143 0 -28 0 0 0

Table 4

0 0 0 48 0 62 0 0 0 0 143 0 28 0 0 0

The embodiment of the present invention only uses the above-mentioned Table 1-Table 4 to illustrate the first streaming media data, standard streaming media data or differential data, and the above-mentioned Table 1-Table 4 does not describe the first streaming media data, standard streaming media data or differential data constitutes a limit.

In the embodiment of the present invention, preferably, in order to enable the second terminal to quickly and accurately determine that the received data is differential data, thereby quickly and accurately restoring the first streaming media data according to the differential data, and improving the efficiency and reliability of data transmission, the first A terminal also sends a first data transmission identifier to the second terminal, and the first data transmission identifier is used to illustrate that what the second terminal currently receives is differential data, and the first data transmission identifier can be a character or a character string (such as 0 or 1 ).

In the embodiment of the present invention, preferably, since a plurality of standard streaming media data may be stored in the streaming media database, in order to facilitate the second terminal to accurately restore and obtain the first streaming media data according to the differential data, the first terminal may acquire all The data identifier of the standard streaming media data, the first terminal sends the data identifier of the standard streaming media data to the second terminal, for the second terminal to restore according to the differential data and the data identifier Obtain the first streaming media data.

Wherein, the image identifier is used to uniquely identify a standard streaming media data in the streaming media database, for example, the image identifier can be ID (IDentification, identity card), name, serial number, hash value, etc.

In the embodiment of the present invention, preferably, since the differential data can be obtained by subtracting the corresponding value of each pixel in the standard streaming data from the value of each pixel in the first streaming media data, it can also be obtained from the value of each pixel in the standard streaming media data The value of each pixel is obtained by subtracting the corresponding value of each pixel in the first streaming media data. Therefore, in order to improve the reliability of data transmission, the first terminal also sends a restoration identifier to the second terminal. The restoration identifier is used to describe the differential data It is obtained by subtracting the corresponding value of each pixel in the standard streaming data from the value of each pixel in the first streaming media, or by subtracting the corresponding value of each pixel in the first streaming media data from the value of each pixel in the standard streaming media data worth it.

Wherein, the restoration identifier can be a character or a character string, for example, 0 can be used to indicate that the differential data is obtained by subtracting the corresponding value of each pixel in the standard streaming media data from the value of each pixel of the first streaming media, and 1 can be used to indicate The difference data is obtained by subtracting the corresponding value of each pixel in the first streaming media data from the value of each pixel in the standard streaming media data.

Step 404, the second terminal receives the differential data from the first terminal, and restores the first streaming media data according to the differential data and the standard streaming media data in the streaming media database.

Wherein, according to the differential data and the standard streaming data in the streaming media database, the method of restoring the first streaming media data can be the same as that in step 302 in the third embodiment according to the differential data and the standard streaming media data in the streaming media database. For the streaming media data, the method of restoring and obtaining the first streaming media data is the same, so details will not be repeated here.

In the embodiment of the present invention, preferably, in order to avoid restoring the first streaming media data that does not need to be restored, thereby improving the reliability of data transmission, when the second terminal receives the differential data and receives the first data transmission identifier , restore the standard streaming media data according to the differential data.

In the embodiment of the present invention, preferably, in order to avoid the inconsistency between the method of restoring the standard streaming media data and the method of obtaining the differential data, resulting in the inability to accurately restore the standard streaming media data and making it difficult to obtain the first streaming media number , that is, in order to improve the reliability of the transmitted data, the second terminal may restore the standard streaming media data according to the difference data according to the restoration identifier. Wherein, if the restore flag indicates that the differential data is obtained by subtracting the corresponding value of each pixel in the standard streaming media data from the value of each pixel in the first streaming media data, then correspondingly, how much of the differential data includes The values of pixels are added to the corresponding values of the plurality of pixels in the standard streaming media data to obtain the first streaming media data. If the restoration flag indicates that the differential data is obtained by subtracting the corresponding value of each pixel in the first streaming media data from the value of each pixel in the standard streaming media data, then correspondingly, the multiple pixels included in the differential data are The values in the standard streaming media data are subtracted from the values of the plurality of pixels in the difference data to obtain the first streaming media data.

For example, the differential data 1 is as shown in the above table 3, the image identifier is biaozhun3, and the restoration identifier is 1, therefore, the second terminal obtains the standard streaming media data 3 from the locally stored streaming media database according to the image identifier, as shown in the above table 2, The value of each pixel in the differential data 1 is added to the corresponding value of each pixel in the standard streaming data 3, so as to restore the standard streaming data 3, and obtain the first streaming data 1 as shown in Table 1 above.

For example, when the data transmission method is applied to remote control, the control terminal as the first terminal obtains the image displayed on the current screen as the first streaming media data 2, as shown in Figure 5, and determines that the local storage streaming media data is stored with The first stream media data 2 similarities are greater than the standard stream media data 4 of preset value as shown in Figure 6, therefore, the first stream media data 2 and standard stream media data are carried out difference, obtain differential data as shown in Figure 7, control terminal Send the differential data to the controlled terminal as the second terminal, and when the controlled terminal receives the differential data, add the differential data to the standard streaming media data 4 to restore the first streaming media data 2 . In the process of remote control, the images displayed by the control terminal and the controlled terminal are similar in most of the time period, and the displayed images change little, so the images displayed by the control terminal or the controlled terminal can be obtained as standard streaming media data, and store the standard streaming media data in the local streaming media databases of the control terminal and the second terminal. Afterwards, the control terminal does not need to transmit all the image data of the image displayed on the current screen of the control terminal to the controlled terminal as the first streaming media data, but transmits the difference data between the first streaming media data and the standard streaming media data to the controlled terminal. end. Since the data volume of the differential data is usually smaller than the data volume of the first streaming media data, the cost of data transmission during the remote control process can be greatly reduced and the transmission efficiency can be improved.

In the embodiment of the present invention, preferably, in order to improve the accuracy of restoring the first streaming media data, and further improve the accuracy of data transmission, the second terminal can receive the data identifier from the first terminal, and correspondingly, the The second terminal searches the corresponding standard streaming media data from the streaming media database according to the data identifier of the standard streaming media data, and the second terminal restores and obtains according to the differential data and the standard streaming media data The first streaming media data.

In the embodiment of the present invention, preferably, when the second terminal obtains the first streaming media data, it can also perform other feasible operations on the first streaming media data, such as displaying images, editing and modifying, and so on.

Step 405, the first terminal stores the first streaming media data in the streaming media database, and sends the first streaming media data to the second terminal.

Since there is no standard streaming data similar to the first streaming data in the standard streaming database of the first terminal, the first terminal needs to send the first streaming data to the second terminal. When sending other streaming data whose similarity with the first streaming data is greater than the preset value, the cost can be reduced and the transmission efficiency can be improved, and the first streaming data can be stored in the streaming database as standard streaming data.

In the embodiment of the present invention, preferably, in order to make the second terminal quickly and accurately determine that the received data is the first streaming media data, so as to prevent the second terminal from restoring the standard streaming media data according to the first streaming media database by mistake, To further improve the reliability of data transmission, the first terminal also sends a second data transmission identifier to the second terminal, the second data transmission identifier is used to illustrate that the second terminal currently receives the first streaming media data, and the second data transmission identifier can be is a character or character string, and is different from the first data transmission identifier (for example, when the first data transmission identifier is 1, the second data transmission identifier can be 0).

Step 406, the second terminal receives the first streaming media data from the first terminal, and stores the first streaming media data in the streaming media database.

Since what the second terminal receives is the first streaming media data, that is, there is no standard streaming media data similar to the first streaming media database stored in the streaming media database stored locally by the second terminal, therefore, in order to ensure that the transmission and When the first streaming media database has similar streaming media data, it is not necessary to send a large amount of data to the second terminal, and the second terminal can also obtain the streaming media data, thereby further reducing the cost of data transmission and improving transmission efficiency. The second terminal may store the first streaming media data in a locally stored streaming media database, that is, store the first streaming media data as standard streaming media data.

In the embodiment of the present invention, preferably, as can be seen from the above steps 405 and 406, the embodiment of the present invention can improve and update the streaming media database stored locally by the first terminal and the second terminal, so in order to improve the reliability of data transmission In particular, when image transmission is performed through the data transmission method provided by the embodiment of the present invention, the streaming media database stored locally between the first terminal and the second terminal may not include any standard streaming media data, and the data provided by the embodiment of the present invention In the data transmission process of the data transmission method, the streaming media database stored locally by the first terminal and the second terminal is improved and updated.

In the embodiment of the present invention, first, the first terminal can compare the first streaming media data with the standard streaming media data, and obtain the differential data between the first streaming media data and the standard streaming media data, because the data volume of the differential data is usually less than The first streaming media data, therefore, compared with transmitting the first streaming media data, transmitting the differential data can reduce the amount of data to be transmitted, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, assign the difference to the second terminal, so that the second terminal can restore the first streaming media data according to the difference data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured .

In addition, the first terminal can also obtain the data identifier of the standard streaming media data, and send the data identifier to the second terminal, which can ensure that the second terminal The standard streaming media data can be accurately obtained according to the data identifier, which further improves the reliability of restoring the standard streaming media data according to the differential data, thereby improving the reliability of data transmission.

In addition, the first terminal can obtain the streaming media data to be transmitted as the first streaming media data, and judge whether there is standard streaming media data similar to the first streaming media data stored in the standard streaming media database, and then can be stored in the standard streaming media database When no standard streaming data similar to the first streaming data is stored, the first streaming data is directly sent to the second terminal, which ensures the reliability of data transmission.

In addition, when the first streaming media data is not stored in the standard streaming media database, the first terminal and the second terminal can store the first streaming media data as standard streaming media data in the standard streaming media database, thereby ensuring that the first terminal again When the streaming media data similar to the first streaming media data needs to be sent to the second terminal, the amount of data to be transmitted can be reduced, so as to further improve the reliability and efficiency of data transmission and reduce the transmission cost.

Embodiment five

Referring to FIG. 8 , it shows a data transmission device according to an embodiment of the present invention, which is applied to a first terminal, the first terminal is provided with a streaming media database, and the data transmission device includes:

The comparison module 801 is used for the first terminal to compare the first streaming data with the standard streaming data in the streaming database to obtain differential data.

The first sending module 802 is used for the first terminal to send the differential data to the second terminal, so that the second terminal can restore and obtain the first streaming media data according to the differential data.

Optionally, the comparison module includes:

The differential sub-module is used for the first terminal to differentiate the first streaming media data and the standard streaming media data to obtain the differential data.

Optionally, the data transmission device also includes:

An acquisition module, configured for the first terminal to acquire the data identifier of the standard streaming media data;

The second sending module is used for the first terminal to send the data identifier of the standard streaming media data to the second terminal, so that the second terminal can restore the data according to the differential data and the data identifier to obtain the First streaming data.

Optionally, the data transmission device also includes:

The first determining module is used for the first terminal to determine that there is standard streaming media data whose similarity with the first streaming media data is greater than a preset value in the streaming media database.

Optionally, the data transmission device also includes:

The second judging module is used for the first terminal to judge that there is no standard streaming media data in the streaming media database whose similarity with the first streaming media data is greater than a preset value;

A third sending module, configured for the first terminal to send the first streaming media data to the second terminal, for the second terminal to store the first streaming media data in a stream in the second terminal in the media database.

Optionally, the data transmission device also includes:

A storage module, configured for the first terminal to store the first streaming media data in the streaming media database.

In the embodiment of the present invention, first, the first terminal can compare the first streaming media data with the standard streaming media data, and obtain the differential data between the first streaming media data and the standard streaming media data, because the data volume of the differential data is usually less than The first streaming media data, therefore, compared with transmitting the first streaming media data, transmitting the differential data can reduce the amount of data to be transmitted, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, assign the difference to the second terminal, so that the second terminal can restore the first streaming media data according to the difference data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured .

Embodiment six

Referring to FIG. 9 , it shows a data transmission device according to an embodiment of the present invention, which is applied to a second terminal, and the second terminal is provided with a streaming media database, and the data transmission device includes:

The first receiving module 901 is configured for the second terminal to receive differential data from the first terminal.

The restoring module 902 is used for the second terminal to restore the first streaming media data according to the differential data and the standard streaming media data in the streaming media database.

Optionally, the data transmission device also includes:

A second receiving module, configured for the second terminal to receive the data identifier from the first terminal;

The recovery module includes:

The search submodule is used for the second terminal to search the corresponding standard streaming media data from the streaming media database according to the data identification of the standard streaming media data;

The restoration sub-module is used for the second terminal to restore and obtain the first streaming media data according to the differential data and the standard streaming media data.

Optionally, the data transmission device also includes:

A third receiving module, configured for the second terminal to receive the first streaming media data from the first terminal;

A storage module, configured for the second terminal to store the first streaming media data in the streaming media database.

In the embodiment of the present invention, firstly, the second terminal can receive the differential data sent by the first terminal. Since the data volume of the differential data is usually smaller than that of the first streaming media data, compared with the transmission of the first streaming media data, the transmission of the differential data The amount of data to be transmitted can be reduced, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, the second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured.

Embodiment seven

Referring to FIG. 10 , it shows a block diagram of a first terminal according to an embodiment of the present invention. The first terminal 1000 shown in FIG. 10 includes: at least one processor 1001 , a memory 1002 , at least one network interface 1004 and other user interfaces 1003 . Various components in the first terminal 1000 are coupled together through the bus system 1005 . It can be understood that the bus system 1005 is used to realize connection and communication between these components. In addition to the data bus, the bus system 1005 also includes a power bus, a control bus and a status signal bus. However, the various buses are labeled as bus system 1005 in FIG. 10 for clarity of illustration.

Wherein, the user interface 1003 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, and the like.

It can be understood that the memory 1002 in this embodiment of the present invention may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double DataRate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM, SLDRAM) And Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). The memory 1002 of the systems and methods described in embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 1002 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 10021 and an application program 10022 .

Among them, the operating system 10021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing tasks based on hardware. The application program 10022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to realize various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 10022 .

In the embodiment of the present invention, by calling the program or instruction stored in the memory 1002, specifically, the program or instruction stored in the application program 10022, the processor 1001 is used to:

Comparing the first streaming data with the standard streaming data in the streaming database to obtain differential data;

and sending the differential data to a second terminal for the second terminal to recover and obtain the first streaming media data according to the differential data.

The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 1001 or implemented by the processor 1001 . The processor 1001 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1001 or instructions in the form of software. The aforementioned processor 1001 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1002, and the processor 1001 reads the information in the memory 1002, and completes the steps of the above method in combination with its hardware.

It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (such as procedures, functions, etc.) that execute the functions described in the embodiments of the present invention. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

Optionally, the processor 1001 is also used for:

and performing a difference between the first streaming media data and the standard streaming media data to obtain the differential data.

Optionally, the processor 1001 is also used for:

Obtain the data identifier of the standard streaming media data;

Sending the data identifier of the standard streaming media data to the second terminal for the second terminal to recover and obtain the first streaming media data according to the differential data and the data identifier.

Optionally, the processor 1001 is also used for:

It is determined that standard streaming data having a similarity with the first streaming data greater than a preset value exists in the streaming media database.

Optionally, the processor 1001 is also used for:

Determining that there is no standard streaming data whose similarity with the first streaming data is greater than a preset value in the streaming database;

sending the first streaming media data to the second terminal for the second terminal to store the first streaming media data in a streaming media database in the second terminal.

Optionally, the processor 1001 is also used for:

storing the first streaming media data in the streaming media database.

The first terminal 1000 can implement various processes implemented by the first terminal in the foregoing embodiments, and details are not described here to avoid repetition.

In the embodiment of the present invention, first, the first terminal can compare the first streaming media data with the standard streaming media data, and obtain the differential data between the first streaming media data and the standard streaming media data, because the data volume of the differential data is usually less than The first streaming media data, therefore, compared with transmitting the first streaming media data, transmitting the differential data can reduce the amount of data to be transmitted, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, assign the difference to the second terminal, so that the second terminal can restore the first streaming media data according to the difference data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured .

Embodiment eight

Fig. 11 is a schematic structural diagram of a first terminal according to another embodiment of the present invention. Specifically, the first terminal 1100 in FIG. 11 may be a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), or a vehicle-mounted computer.

The first terminal 1100 in FIG. 11 includes a radio frequency (Radio Frequency, RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a processor 1160, an audio circuit 1170, a WiFi (Wireless Fidelity) module 1180 and a power supply 1190.

Wherein, the input unit 130 can be used to receive number or character information input by the user, and generate signal input related to user setting and function control of the first terminal 1100 . Specifically, in the embodiment of the present invention, the input unit 1130 may include a touch panel 1131 . The touch panel 1131, also referred to as a touch screen, can collect user's touch operations on or near it (such as the user's operation on the touch panel 1131 using any suitable object or accessory such as a finger, a stylus), and The specified program drives the corresponding connected device. Optionally, the touch panel 1131 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 1160, and can receive and execute commands sent by the processor 1160. In addition, the touch panel 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1131, the input unit 1130 may also include other input devices 1132, which may include but not limited to physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, etc. one or more of.

Wherein, the display unit 1140 may be used to display information input by the user or information provided to the user and various menu interfaces of the first terminal 1100 . The display unit 1140 may include a display panel 1141, and optionally, the display panel 1141 may be configured in the form of an LCD or an organic light-emitting diode (Organic Light-Emitting Diode, OLED).

It should be noted that the touch panel 1131 can cover the display panel 1141 to form a touch display screen. When the touch display screen detects a touch operation on or near it, it is sent to the processor 1160 to determine the type of the touch event, and then the processor 1160 provides corresponding visual output on the touch display screen according to the type of the touch event.

The touch display screen includes an application program interface display area and a common control display area. The arrangement of the display area of the application program interface and the display area of the commonly used controls is not limited, and may be an arrangement in which the two display areas can be distinguished, such as vertical arrangement, left-right arrangement, and the like. The application program interface display area can be used to display the interface of the application program. Each interface may include at least one interface element such as an icon of an application program and/or a widget desktop control. The application program interface display area can also be an empty interface without any content. The commonly used control display area is used to display controls with a high usage rate, for example, application icons such as setting buttons, interface numbers, scroll bars, and phonebook icons.

Wherein the processor 1160 is the control center of the first terminal 1100, which uses various interfaces and lines to connect various parts of the entire mobile phone, and runs or executes the software programs and/or modules stored in the first memory 1121, and calls the stored in the first memory 1121. The data in the second memory 1122 executes various functions of the first terminal 1100 and processes data, so as to monitor the first terminal 1100 as a whole. Optionally, the processor 1160 may include one or more processing units.

In the embodiment of the present invention, by calling the software programs and/or modules stored in the first memory 1121 and/or the data in the second memory 1122, the processor 1160 is used to:

The first terminal compares the first streaming data with the standard streaming data in the streaming database to obtain differential data;

The first terminal sends the differential data to the second terminal, so that the second terminal restores and obtains the first streaming media data according to the differential data.

Optionally, the processor 1160 is also used for:

and performing a difference between the first streaming media data and the standard streaming media data to obtain the differential data.

Optionally, the processor 1160 is also used for:

Obtain the data identifier of the standard streaming media data;

Sending the data identifier of the standard streaming media data to the second terminal for the second terminal to recover and obtain the first streaming media data according to the differential data and the data identifier.

Optionally, the processor 1160 is also used for:

It is determined that standard streaming data having a similarity with the first streaming data greater than a preset value exists in the streaming media database.

Optionally, the processor 1160 is also used for:

Determining that there is no standard streaming data whose similarity with the first streaming data is greater than a preset value in the streaming database;

sending the first streaming media data to the second terminal for the second terminal to store the first streaming media data in a streaming media database in the second terminal.

Optionally, the processor 1160 is also used for:

storing the first streaming media data in the streaming media database.

In the embodiment of the present invention, first, the first terminal can compare the first streaming media data with the standard streaming media data, and obtain the differential data between the first streaming media data and the standard streaming media data, because the data volume of the differential data is usually less than The first streaming media data, therefore, compared with transmitting the first streaming media data, transmitting the differential data can reduce the amount of data to be transmitted, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, assign the difference to the second terminal, so that the second terminal can restore the first streaming media data according to the difference data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured .

Embodiment nine

Referring to FIG. 12 , it shows a block diagram of a second terminal according to an embodiment of the present invention. The second terminal 1200 shown in FIG. 12 includes: at least one processor 1201 , a memory 1202 , at least one network interface 1204 and other user interfaces 1203 . Various components in the second terminal 1200 are coupled together through the bus system 1205 . It can be understood that the bus system 1205 is used to realize connection and communication between these components. In addition to the data bus, the bus system 1205 also includes a power bus, a control bus and a status signal bus. However, the various buses are labeled as bus system 1205 in FIG. 12 for clarity of illustration.

Wherein, the user interface 1203 may include a display, a keyboard or a pointing device (for example, a mouse, a trackball (trackball), a touch panel or a touch screen, and the like.

It can be understood that the memory 1202 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. The volatile memory can be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double DataRate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM, SLDRAM) And Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). The memory 1202 of the systems and methods described in embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, the memory 1202 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: an operating system 12021 and an application program 12022 .

Among them, the operating system 12021 includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing tasks based on hardware. The application program 12022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., and is used to realize various application services. The program for realizing the method of the embodiment of the present invention may be included in the application program 12022 .

In this embodiment of the present invention, by calling the program or instruction stored in the memory 1202, specifically, the program or instruction stored in the application program 12022, the processor 1201 is used to:

receiving differential data from the first terminal;

According to the difference data and the standard streaming data in the streaming database, the first streaming data is restored.

The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 1201 or implemented by the processor 1201 . The processor 1201 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be implemented by an integrated logic circuit of hardware in the processor 1201 or instructions in the form of software. The above-mentioned processor 1201 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1202, and the processor 1201 reads the information in the memory 1202, and completes the steps of the above method in combination with its hardware.

It can be understood that the embodiments described in the embodiments of the present invention may be implemented by hardware, software, firmware, middleware, microcode or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, other electronic units for performing the functions described in this application or a combination thereof.

For software implementation, the techniques described in the embodiments of the present invention may be implemented through modules (such as procedures, functions, etc.) that execute the functions described in the embodiments of the present invention. Software codes can be stored in memory and executed by a processor. Memory can be implemented within the processor or external to the processor.

Optionally, the processor 1201 is also used for:

receiving a data identifier from the first terminal;

According to the differential data and the standard streaming data in the streaming database, restoring the first streaming data includes:

According to the data identification of the standard streaming media data, search the corresponding standard streaming media data from the streaming media database;

According to the differential data and the standard streaming data, restore the first streaming media data.

Optionally, the processor 1201 is also used for:

receiving first streaming data from the first terminal;

storing the first streaming media data in the streaming media database.

The second terminal 1200 can implement various processes implemented by the second terminal in the foregoing embodiments, and to avoid repetition, details are not repeated here.

In the embodiment of the present invention, firstly, the second terminal can receive the differential data sent by the first terminal. Since the data volume of the differential data is usually smaller than that of the first streaming media data, compared with the transmission of the first streaming media data, the transmission of the differential data The amount of data to be transmitted can be reduced, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, the second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured.

Embodiment ten

Fig. 13 is a schematic structural diagram of a second terminal according to another embodiment of the present invention. Specifically, the second terminal 1300 in FIG. 13 may be a mobile phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), or a vehicle-mounted computer.

The second terminal 1300 in FIG. 13 includes a radio frequency (Radio Frequency, RF) circuit 1310, a memory 1320, an input unit 1330, a display unit 1340, a processor 1160, an audio circuit 1370, a WiFi (Wireless Fidelity) module 1380 and a power supply 1390.

Wherein, the input unit 1330 can be used to receive number or character information input by the user, and generate signal input related to the user setting and function control of the second terminal 1300 . Specifically, in the embodiment of the present invention, the input unit 1330 may include a touch panel 1331 . The touch panel 1331, also referred to as a touch screen, can collect user's touch operations on or near it (such as the user's operation on the touch panel 1331 using any suitable object or accessory such as a finger or a stylus), and perform the operation according to preset settings. The specified program drives the corresponding connected device. Optionally, the touch panel 1331 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 1360, and can receive and execute commands sent by the processor 1360. In addition, the touch panel 1331 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1331, the input unit 1330 may also include other input devices 1332, which may include but not limited to physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, etc. one or more of.

Wherein, the display unit 1340 may be used to display information input by the user or information provided to the user and various menu interfaces of the second terminal 1300 . The display unit 1340 may include a display panel 1341, and optionally, the display panel 1341 may be configured in the form of an LCD or an organic light-emitting diode (Organic Light-Emitting Diode, OLED).

It should be noted that the touch panel 1331 can cover the display panel 1341 to form a touch display screen. When the touch display screen detects a touch operation on or near it, it is sent to the processor 1360 to determine the type of the touch event, and then the processor The 1360 provides corresponding visual output on the touch display screen according to the type of the touch event.

The touch display screen includes an application program interface display area and a common control display area. The arrangement of the display area of the application program interface and the display area of the commonly used controls is not limited, and may be an arrangement in which the two display areas can be distinguished, such as vertical arrangement, left-right arrangement, and the like. The application program interface display area can be used to display the interface of the application program. Each interface may include at least one interface element such as an icon of an application program and/or a widget desktop control. The application program interface display area can also be an empty interface without any content. The commonly used control display area is used to display controls with a high usage rate, for example, application icons such as setting buttons, interface numbers, scroll bars, and phonebook icons.

Wherein the processor 1360 is the control center of the second terminal 1300, which uses various interfaces and lines to connect various parts of the entire mobile phone, and runs or executes the software programs and/or modules stored in the first memory 1321, and calls the The data in the second storage 1322 executes various functions of the second terminal 1300 and processes data, so as to monitor the second terminal 1300 as a whole. Optionally, the processor 1360 may include one or more processing units.

In the embodiment of the present invention, by calling the software programs and/or modules stored in the first memory 1321 and/or the data in the second memory 1322, the processor 1360 is used to:

The second terminal receives differential data from the first terminal;

The second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data in the streaming media database.

Optionally, the processor 1360 is also used for:

receiving a data identifier from the first terminal;

According to the differential data and the standard streaming data in the streaming database, restoring the first streaming data includes:

According to the data identification of the standard streaming media data, search the corresponding standard streaming media data from the streaming media database;

According to the differential data and the standard streaming data, restore the first streaming media data.

Optionally, the processor 1360 is also used for:

receiving first streaming data from the first terminal;

storing the first streaming media data in the streaming media database.

In the embodiment of the present invention, firstly, the second terminal can receive the differential data sent by the first terminal. Since the data volume of the differential data is usually smaller than that of the first streaming media data, compared with the transmission of the first streaming media data, the transmission of the differential data The amount of data to be transmitted can be reduced, thereby reducing the cost of data transmission and improving the efficiency of data transmission. Secondly, the second terminal restores and obtains the first streaming media data according to the differential data and the standard streaming media data, that is, while reducing the cost of data transmission and improving the efficiency of data transmission, the reliability of data transmission can be ensured.

An embodiment of the present invention also provides a terminal, including: a memory, a processor, and a data transmission program stored in the memory and operable on the processor. When the data transmission program is executed by the processor The steps of the data transmission method are realized.

An embodiment of the present invention also provides a computer-readable storage medium, where a data transmission program is stored on the computer-readable storage medium, and when the data transmission program is executed by a processor, the steps of the data transmission method are implemented.

Those of ordinary skill in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (20)

1. a kind of data transmission method, it is characterised in that applied to first terminal, the first terminal is provided with stream medium data Storehouse, including：

First stream medium data is compared the first terminal with the standard stream medium data in the stream medium data storehouse, Obtain differential data；

The differential data is sent to second terminal by the first terminal, for the second terminal according to the differential data also Original obtains first stream medium data.

2. data transmission method according to claim 1, it is characterised in that the first terminal is by the first stream medium data With the standard stream medium data in the stream medium data storehouse be compared including：

First stream medium data and the standard stream medium data are carried out difference by the first terminal, obtain the difference Data.

3. data transmission method according to claim 1, it is characterised in that also include：

The first terminal obtains the Data Identification of the standard stream medium data；

The Data Identification of the standard stream medium data is sent to the second terminal by the first terminal, for described second eventually End obtains first stream medium data according to the differential data and Data Identification reduction.

4. data transmission method according to claim 1, it is characterised in that also include：

The first terminal judges to exist to be more than with the first stream medium data similarity in the stream medium data storehouse to preset The standard stream medium data of value.

5. data transmission method according to claim 4, it is characterised in that also include：

The first terminal judges to be not present in the stream medium data storehouse to be more than in advance with the first stream medium data similarity If the standard stream medium data of value；

First stream medium data is sent to the second terminal by the first terminal, for the second terminal by described One stream medium data is stored in the stream medium data storehouse into the second terminal.

6. data transmission method according to claim 5, it is characterised in that also include：

The first terminal stores first stream medium data into the stream medium data storehouse.

7. a kind of data transmission method, it is characterised in that applied to second terminal, the second terminal is provided with stream medium data Storehouse, the data transmission method includes：

The second terminal receives the differential data from first terminal；

Standard stream medium data of the second terminal in the differential data and the stream medium data storehouse, is reduced To the first stream medium data.

8. data transmission method according to claim 7, it is characterised in that also include：

The second terminal receives the Data Identification from the first terminal；

Standard stream medium data of the second terminal in the differential data and the stream medium data storehouse, is reduced Included to first flow media data packet：

The second terminal searches correspondence according to the Data Identification of the standard stream medium data from the stream medium data storehouse Standard stream medium data；

The second terminal obtains the first Streaming Media number according to the differential data and the standard stream medium data, reduction According to.

9. data transmission method according to claim 7, it is characterised in that also include：

The second terminal receives the first stream medium data from the first terminal；

The second terminal stores first stream medium data into the stream medium data storehouse.

10. a kind of data transmission device, it is characterised in that applied to first terminal, the first terminal is provided with Streaming Media number According to storehouse, including：

Contrast module, for the first terminal by the standard Streaming Media in the first stream medium data and the stream medium data storehouse Data are compared, and obtain differential data；

First sending module, is sent to second terminal, for the second terminal for the first terminal by the differential data First stream medium data is obtained according to differential data reduction.

11. data transmission device according to claim 10, it is characterised in that the comparing module includes：

Difference submodule, it is poor to carry out first stream medium data and the standard stream medium data for the first terminal Point, obtain the differential data.

12. data transmission device according to claim 10, it is characterised in that the data transmission device also includes：

Acquisition module, the Data Identification of the standard stream medium data is obtained for the first terminal；

Second sending module, described second is sent to for the first terminal by the Data Identification of the standard stream medium data Terminal, first stream medium data is obtained for the second terminal according to the differential data and Data Identification reduction.

13. data transmission device according to claim 10, it is characterised in that the data transmission device also includes：

First determination module, judges exist and the first Streaming Media number in the stream medium data storehouse for the first terminal It is more than the standard stream medium data of preset value according to similarity.

14. data transmission device according to claim 13, it is characterised in that the data transmission device also includes：

Second determination module, judges to be not present and first Streaming Media in the stream medium data storehouse for the first terminal Data similarity is more than the standard stream medium data of preset value；

3rd sending module, is sent to the second terminal, for institute for the first terminal by first stream medium data State in the stream medium data storehouse that second terminal stores first stream medium data into the second terminal.

15. data transmission device according to claim 14, it is characterised in that the data transmission device also includes：

Memory module, stores first stream medium data into the stream medium data storehouse for the first terminal.

16. a kind of data transmission device, it is characterised in that applied to second terminal, the second terminal is provided with Streaming Media number According to storehouse, including：

First receiving module, the differential data from first terminal is received for the second terminal；

Recovery module, for normal stream matchmaker of the second terminal in the differential data and the stream medium data storehouse Volume data, reduction obtains the first stream medium data.

17. data transmission device according to claim 16, it is characterised in that the data transmission device also includes：

Second receiving module, the Data Identification from the first terminal is received for the second terminal；

The recovery module includes：

Submodule is searched, for Data Identification of the second terminal according to the standard stream medium data, from the Streaming Media Corresponding standard stream medium data is searched in database；

Submodule is reduced, for the second terminal according to the differential data and the standard stream medium data, reduction is obtained First stream medium data.

18. data transmission device according to claim 16, it is characterised in that the data transmission device also includes：

3rd receiving module, the first stream medium data from the first terminal is received for the second terminal；

Memory module, stores first stream medium data into the stream medium data storehouse for the second terminal.

19. a kind of terminal, it is characterised in that including：Memory, processor and it is stored on the memory and can be at the place The data distributing program run on reason device, the data distributing program is realized such as claim 1 to 9 during the computing device Any one of data transmission method the step of.

20. a kind of computer-readable recording medium, it is characterised in that the data that are stored with the computer-readable recording medium are passed Defeated program, the data distributing program realizes data transfer as claimed in any one of claims 1-9 wherein when being executed by processor The step of method.