CN106657339B - Data transmission method, server and client - Google Patents
Data transmission method, server and client Download PDFInfo
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- CN106657339B CN106657339B CN201611214965.6A CN201611214965A CN106657339B CN 106657339 B CN106657339 B CN 106657339B CN 201611214965 A CN201611214965 A CN 201611214965A CN 106657339 B CN106657339 B CN 106657339B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/2866—Architectures; Arrangements
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Abstract
The invention discloses a data transmission method, a server and a client, wherein the server selects a decoder to decode a target file according to the file type of the target file to obtain file configuration information, file coding information and data content of the target file; sending the file configuration information and the file coding information to a client, or sending the file configuration information to the client; when the target file is judged to be larger than the preset capacity according to the file size in the file configuration information, the data content is divided into multiple sections, a timestamp is added to the file header of each section of the data content, and the multiple sections of the data content are sent to the client. The invention divides the large-capacity files into small-capacity files for block transmission, thereby solving the defects that some protocols (such as AllJoyn protocol) are only suitable for small-file transmission and only suitable for picture or text transmission, and enabling the server and the client to transmit files of various types and any sizes.
Description
Technical Field
The present invention relates to a multimedia data transmission method, and in particular, to a data transmission method, a server, and a client.
Background
For different multimedia files such as audio and video, computers use different codecs to parse and reconstruct the multimedia files so as to obtain specific information of the multimedia files for processing and playing. For webpage videos on the internet or special video website videos, video files are cached on a local computer when online playing is carried out, but the cached files cannot be directly used, and all the cached files can be converted into the most common video files by a special video parser.
At present, some protocols (such as AllJoyn protocol) only support small-capacity text files and image files well, but cannot support large-capacity files effectively.
Disclosure of Invention
Aiming at the defect that the protocol in the prior art cannot effectively support the transmission of a larger file, the invention provides a data transmission method, a server and a client.
The invention provides a data transmission method, which comprises the following steps:
the server selects a decoder to decode the target file according to the file type of the target file to obtain the file configuration information, the file coding information and the data content of the target file;
sending the file configuration information and the file coding information to a client, or sending the file configuration information to the client;
and when the target file is judged to be larger than the preset capacity according to the file size in the file configuration information, dividing the data content into multiple sections, adding a timestamp to the file header of each section of the data content, and sending the multiple sections of the data content to the client.
The method also has the following characteristics:
before the sending the file configuration information and the file encoding information to a client, or sending the file configuration information to the client, the method further includes: the method comprises the steps that a server determines a file transmission mode and sends information used for indicating the file transmission mode to a client, wherein the file transmission mode is a complete transmission mode or a shared transmission mode;
the server sending the file configuration information to the client or sending the file configuration information and the file encoding information to the client comprises: and when the file transmission mode is the complete transmission mode, the file configuration information and the file coding information are sent to the client, and when the file transmission mode is the sharing transmission mode, the file configuration information is sent to the client.
The method also has the following characteristics:
when the file transmission mode is the complete transmission mode, the sending the file configuration information and the file coding information to the client comprises: and when the file transmission mode is the sharing transmission mode, if the server receives a request for acquiring the complete file from the client, the server sends the coding information of the target file to the client.
The method also has the following characteristics:
the server calls a control application programming interface function on the client to control the operation of the client on the target file through the connection established with the client, wherein the application programming interface function comprises at least one of the following information: play, stop, pause.
The method also has the following characteristics:
the server sets that the capacity of a transmission block for transmitting file configuration information, the capacity of a transmission block for transmitting file coding information and the capacity of a transmission block for transmitting each section of data content are the same;
the server sets the transmission block type of a transmission block for transmitting the file configuration information as the file configuration information; setting a transmission block type of a transmission block for transmitting file coding information as the file coding information; the transport block type of the transport block for transporting the data content is set as the data content.
The present invention also provides a server, comprising:
the analysis module is used for selecting a decoder to decode the target file according to the file type of the target file to obtain file configuration information, file coding information and data content of the target file;
the judging module is used for judging that the target file is larger than the preset capacity according to the file size in the file configuration information;
the sending module is used for sending the file configuration information to the client, or sending the file configuration information and the file coding information to the client; and the data content is divided into a plurality of sections when the judging module judges that the target file is larger than the preset capacity, a time stamp is added to the file header of each section of data content, and the plurality of sections of data content are sent to the client.
The server also has the following characteristics:
the file transmission mode determining module is used for determining a file transmission mode, wherein the file transmission mode refers to a complete transmission mode or a shared transmission mode;
the sending module is further used for sending information used for indicating a file transmission mode to the client; and the file configuration information and the file coding information are sent to the client when the file transmission mode is the complete transmission mode, and the file configuration information is sent to the client when the file transmission mode is the sharing transmission mode.
The server also has the following characteristics:
the receiving module is used for receiving a request for acquiring a complete file from a client;
the sending module is further configured to send the coding information of the target file to the client only after the receiving module receives a request for obtaining a complete file from the client when the file transmission mode is the sharing transmission mode.
The server also has the following characteristics:
the system further comprises a control module, configured to invoke a control application programming interface function on the client through a connection established with the client to control an operation of the client on a target file, where the application programming interface function includes at least one of the following information: play, stop, pause.
The invention also provides a data transmission method, which comprises the following steps:
after receiving file configuration information, file coding information and a plurality of pieces of data content from the server, the client constructs the plurality of pieces of data content into the data content of a target file according to a timestamp in a file header of each piece of data content, and generates the target file according to the data content of the target file by using the file configuration information and the file coding information;
and after receiving the file configuration information and the plurality of data contents from the server, the client constructs the plurality of data contents into the data contents of the target file according to the time stamp in the file header of each data content, and generates a cache file according to the data contents of the target file by using the file configuration information.
The data transmission method also has the following characteristics: the method further comprises the following steps: and after receiving the information for indicating the file transmission mode from the server, the client sends a request for acquiring the complete file to the server when the file transmission mode is the sharing transmission mode.
The invention also provides a client, comprising:
the receiving module is used for receiving file configuration information, file coding information and a plurality of pieces of data content from a server, or receiving the file configuration information and the plurality of pieces of data content from the server;
a generating module, configured to, after the receiving module receives the file configuration information, the file encoding information, and the plurality of pieces of data content from the server, construct the plurality of pieces of data content into data content of a target file according to a timestamp in a file header of each piece of data content, and generate the target file according to the data content of the target file using the file configuration information and the file encoding information; and the receiving module is used for constructing the plurality of data contents into the data contents of the target file according to the time stamp in the file header of each data content after receiving the file configuration information and the plurality of data contents from the server, and generating the cache file according to the data contents of the target file by using the file configuration information.
The client also has the following characteristics:
the system also comprises a sending module;
the receiving module is further used for receiving information used for indicating a file transmission mode from a server;
and the sending module is used for sending a request for acquiring the complete file to the server when the file transmission mode is the sharing transmission mode after the receiving module receives the information for indicating the file transmission mode from the server.
The invention divides the large-capacity files into small-capacity files for block transmission, thereby solving the defects that some protocols (such as AllJoyn protocol) are only suitable for small-file transmission and only suitable for picture or text transmission, and enabling the server and the client to transmit files of various types and any sizes. The invention divides the file transmission into two concepts of complete transmission and sharing, on one hand, the functions of file transmission and file sharing are ensured, and on the other hand, the conflict between the file transmission and the file sharing is avoided.
Drawings
FIG. 1 is a flow chart of a method of data transmission in an embodiment;
fig. 2 is a flow chart of a method of data transmission in another embodiment.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The types of the files transmitted during data transmission comprise pictures, audio and video.
The present invention is typically applicable to the AllJoyn protocol.
Fig. 1 is a flowchart of a method for data transmission in an embodiment, where a server is used as an execution subject, the method includes:
102, sending the file configuration information and the file coding information to a client, or sending the file configuration information to the client;
and 103, when the target file is judged to be larger than the preset capacity according to the file size in the file configuration information, dividing the data content into multiple sections, adding a timestamp to the file header of each section of the data content, and sending the multiple sections of the data content to the client.
Wherein the content of the first and second substances,
the file configuration information in step 101 includes: file size, file type, file sampling rate, data structure, etc.
When the server sends the file configuration information and the file coding information to the client in the step 102, the client can regenerate and store the original file except playing and displaying the data content, and when the server only sends the file configuration information to the client in the step 102, the client can only play and display the data content on line and cannot regenerate and store the original file.
In the method, before step 102, the method may further include: the server determines a file transmission mode and sends information for indicating the file transmission mode to the client, wherein the file transmission mode refers to a complete transmission mode or a shared transmission mode. Step 102 specifically includes: the server sends the file configuration information to the client or sends the file configuration information and the file coding information to the client comprises the following steps: and when the file transmission mode is the complete transmission mode, sending the file configuration information and the file coding information to the client, and when the file transmission mode is the sharing transmission mode, sending the file configuration information to the client.
When the file transmission mode is the complete transmission mode, sending the file configuration information and the file coding information to the client comprises: and when the file transmission mode is the sharing transmission mode, if the server receives a complete file acquisition request from the client, the server sends the coding information of the target file to the client.
The preset capacity in step 103 refers to a capacity upper limit when the protocol in the prior art performs small-capacity file transmission, and may be set to 5 megabytes for the AllJoyn protocol, for example.
In the method, when the server transmits the file configuration information, the file coding information and each piece of data content, the capacity of the transmission block for transmitting the file configuration information, the capacity of the file block for transmitting the file coding information and the capacity of the transmission block for transmitting each piece of data content are the same, and are all 5 megabytes for example. When the server sends the file configuration information, the file coding information and each segment of data content, setting a transmission block type on a file header of a transmission block, for example, setting the transmission block type of the transmission block for transmitting the file configuration information as the file configuration information; setting a transmission block type of a transmission block for transmitting file coding information as the file coding information; the transport block type of the transport block for transporting the data content is set as the data content.
In the method, when the target file is an audio or video file, the server may control the operation of the client on the target file, specifically, the server calls a control application programming interface function on the client through a connection established with the client to control the operation of the client on the target file, where the application programming interface function includes at least one of the following information: play, stop, pause.
The server in this embodiment includes: the device comprises an analysis module, a judgment module and a sending module.
The analysis module is used for selecting a decoder to decode the target file according to the file type of the target file to obtain file configuration information, file coding information and data content of the target file;
the judging module is used for judging that the target file is larger than the preset capacity according to the file size in the file configuration information;
the sending module is used for sending the file configuration information to the client, or sending the file configuration information and the file coding information to the client; the data content is divided into a plurality of sections when the judging module judges that the target file is larger than the preset capacity, a timestamp is added to the file header of each section of the data content, and the plurality of sections of the data content are sent to the client.
The server also comprises a file transmission mode determining module for controlling whether the client generates the original file. The file transmission mode determining module is used for determining a file transmission mode, wherein the file transmission mode refers to a complete transmission mode or a shared transmission mode.
The sending module is also used for sending information used for indicating a file transmission mode to the client; and the file configuration module is also used for sending the file configuration information and the file coding information to the client when the file transmission mode is the complete transmission mode, and sending the file configuration information when the file transmission mode is the sharing transmission mode.
And the server sends the coding information of the target file to the client under the request of the client. Specifically, the receiving module is configured to receive a request for obtaining a complete file from a client. The sending module is further configured to send the encoding information of the target file to the client only after the receiving module receives the request for obtaining the complete file from the client when the file transmission mode is the sharing transmission mode.
When the target file is an audio or video file, and the server can control the operation of the client on the target file, the control module is used for calling a control application programming interface function on the client through the connection established with the client to control the operation of the client on the target file, and the application programming interface function comprises at least one of the following information: play, stop, pause.
The control module is further configured to set a capacity of a transmission block used for sending the file configuration information, a capacity of a file block used for sending the file encoding information, and a capacity of a transmission block used for sending each segment of the data content to be the same, for example, 5 megabytes; the method is also used for setting the transmission block type of the transmission block for transmitting the file configuration information as the file configuration information; setting a transmission block type of a transmission block for transmitting file coding information as the file coding information; the transport block type of the transport block for transporting the data content is set as the data content.
Fig. 2 is a flowchart of a method for data transmission in an embodiment, in which a client is used as an execution subject, the method includes:
Wherein the content of the first and second substances,
after receiving the file configuration information, the file coding information and the multi-segment data content from the server, the client distinguishes whether the transmission block carries the file configuration information, the file coding information or the multi-segment data content according to the transmission block type in the header file of each transmission block.
When the server sets a file transmission mode, after the client receives information for indicating the file transmission mode from the server, the file transmission mode is a sharing transmission mode, and when an original target file needs to be acquired, a request for acquiring a complete file is sent to the server.
The client also receives a control application programming interface function on the server calling the client through the connection established with the client, wherein the control application programming interface function comprises at least one of the following information: play, stop, pause.
The client in this embodiment is characterized by including: the device comprises a receiving module and a generating module.
The receiving module is used for receiving the file configuration information, the file coding information and the multiple pieces of data content from the server, or receiving the file configuration information and the multiple pieces of data content from the server.
The generating module is used for constructing the plurality of data contents into the data contents of the target file according to the time stamp in the file header of each data content after the receiving module receives the file configuration information, the file coding information and the plurality of data contents from the server, and generating the target file according to the data contents of the target file by using the file configuration information and the file coding information; and the receiving module is also used for constructing the plurality of data contents into the data contents of the target file according to the time stamps in the file headers of the data contents after receiving the file configuration information and the plurality of data contents from the server, and generating the cache file according to the data contents of the target file by using the file configuration information.
The client also comprises a sending module.
The receiving module is also used for receiving information used for indicating a file transmission mode from the server;
the sending module is used for sending a request for acquiring the complete file to the server when the file transmission mode is the sharing transmission mode after the receiving module receives the information for indicating the file transmission mode from the server.
The invention divides the large-capacity files into small-capacity files for block transmission, thereby overcoming the defects of only being suitable for small-file transmission and only being suitable for picture or text transmission, and enabling the server and the client to transmit files of various types and any sizes. The invention divides the file transmission into two concepts of complete transmission and sharing, on one hand, the functions of file transmission and file sharing are ensured, and on the other hand, the conflict between the file transmission and the file sharing is avoided.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The above embodiments are merely to illustrate the technical solutions of the present invention and not to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention and it should be understood that the present invention is to be covered by the appended claims.
Claims (11)
1. A method of data transmission, comprising:
the server selects a decoder to decode the target file according to the file type of the target file to obtain the file configuration information, the file coding information and the data content of the target file;
sending the file configuration information and the file coding information to a client, or sending the file configuration information to the client;
when the target file is judged to be larger than the preset capacity according to the file size in the file configuration information, dividing the data content into multiple sections, adding a timestamp to the file header of each section of data content, and sending the multiple sections of data content to the client;
before the sending the file configuration information and the file encoding information to a client, or sending the file configuration information to the client, the method further includes: the method comprises the steps that a server determines a file transmission mode and sends information used for indicating the file transmission mode to a client, wherein the file transmission mode is a complete transmission mode or a shared transmission mode;
the server sending the file configuration information to the client or sending the file configuration information and the file encoding information to the client comprises: when the file transmission mode is the complete transmission mode, the file configuration information and the file coding information are sent to the client, and when the file transmission mode is the sharing transmission mode, the file configuration information is sent to the client;
wherein the full transfer mode is configured to transfer information for regenerating and saving an original file at the client;
the shared transmission mode is configured such that information it transmits cannot be regenerated into a source file and saved at the client.
2. The method of data transmission according to claim 1,
when the file transmission mode is the complete transmission mode, the sending the file configuration information and the file coding information to the client comprises: and when the file transmission mode is the sharing transmission mode, if the server receives a request for acquiring the complete file from the client, the server sends the coding information of the target file to the client.
3. The method of data transmission according to claim 2,
the server calls a control application programming interface function on the client to control the operation of the client on the target file through the connection established with the client, wherein the application programming interface function comprises at least one of the following information: play, stop, pause.
4. The method of data transmission according to claim 1,
the server sets that the capacity of a transmission block for transmitting file configuration information, the capacity of a transmission block for transmitting file coding information and the capacity of a transmission block for transmitting each section of data content are the same;
the server sets the transmission block type of a transmission block for transmitting the file configuration information as the file configuration information; setting a transmission block type of a transmission block for transmitting file coding information as the file coding information; the transport block type of the transport block for transporting the data content is set as the data content.
5. A server, comprising:
the analysis module is used for selecting a decoder to decode the target file according to the file type of the target file to obtain file configuration information, file coding information and data content of the target file;
the judging module is used for judging that the target file is larger than the preset capacity according to the file size in the file configuration information;
the sending module is used for sending the file configuration information to a client, or sending the file configuration information and the file coding information to the client; the data content is divided into a plurality of sections when the judging module judges that the target file is larger than the preset capacity, a time stamp is added to the file header of each section of data content, and the plurality of sections of data content are sent to the client;
the server further comprises:
the file transmission mode determining module is used for determining a file transmission mode, wherein the file transmission mode refers to a complete transmission mode or a shared transmission mode;
the sending module is further used for sending information used for indicating a file transmission mode to the client; the file configuration information and the file coding information are sent to the client when the file transmission mode is a complete transmission mode, and the file configuration information is sent to the client when the file transmission mode is a sharing transmission mode;
wherein the full transfer mode is configured to transfer information for regenerating and saving an original file at the client;
the shared transmission mode is configured such that information it transmits cannot be regenerated into a source file and saved at the client.
6. The server of claim 5, further comprising:
the receiving module is used for receiving a request for acquiring a complete file from a client;
the sending module is further configured to send the coding information of the target file to the client only after the receiving module receives a request for obtaining a complete file from the client when the file transmission mode is the sharing transmission mode.
7. The server of claim 5, further comprising a control module to invoke a control application programming interface function on the client to control operation of the client on a target file through a connection established with the client, the application programming interface function including at least one of: play, stop, pause.
8. A method of data transmission, comprising:
the method comprises the steps that a client receives information used for indicating a file transmission mode, wherein the file transmission mode is a complete transmission mode or a shared transmission mode, and the complete transmission mode is configured to transmit information used for regenerating and saving an original file at the client; the sharing transmission mode is configured that the transmitted information can not regenerate and save the source file at the client;
in the complete transmission mode, after receiving file configuration information, file coding information and a plurality of pieces of data content from a server, a client constructs the plurality of pieces of data content into the data content of a target file according to a timestamp in a file header of each piece of data content, and generates the target file according to the data content of the target file by using the file configuration information and the file coding information; or
In the sharing transmission mode, after receiving the file configuration information and the plurality of pieces of data content from the server, the client constructs the plurality of pieces of data content into the data content of the target file according to the time stamp in the file header of each piece of data content, and generates the cache file according to the data content of the target file by using the file configuration information.
9. The method of data transmission according to claim 8, the method further comprising: and after receiving the information for indicating the file transmission mode from the server, the client sends a request for acquiring the complete file to the server when the file transmission mode is the sharing transmission mode.
10. A client, comprising:
a receiving module, configured to receive information indicating a file transfer mode from a server, where the file transfer mode is a complete transfer mode or a shared transfer mode, and the complete transfer mode is configured to transfer information used for regenerating and saving an original file at the client; the sharing transmission mode is configured that the transmitted information can not regenerate and save the source file at the client;
the receiving module is further configured to receive file configuration information, file encoding information, and a plurality of pieces of data content from a server, or receive file configuration information and a plurality of pieces of data content from the server;
the generating module is used for constructing the plurality of data contents into the data contents of the target file according to the time stamps in the file headers of the data contents after the receiving module receives the file configuration information, the file coding information and the plurality of data contents from the server in the complete transmission mode, and generating the target file according to the data contents of the target file by using the file configuration information and the file coding information; and the receiving module is further configured to construct the plurality of data contents into the data contents of the target file according to the time stamp in the file header of each data content after receiving the file configuration information and the plurality of data contents from the server in the sharing transmission mode, and generate the cache file according to the data contents of the target file by using the file configuration information.
11. The client of claim 10, further comprising a sending module;
the receiving module is further used for receiving information used for indicating a file transmission mode from a server;
and the sending module is used for sending a request for acquiring the complete file to the server when the file transmission mode is the sharing transmission mode after the receiving module receives the information for indicating the file transmission mode from the server.
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| CN103124275A (en) * | 2011-11-18 | 2013-05-29 | 腾讯科技（深圳）有限公司 | Method and device of obtaining files |
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