CN111342864A - Data transmission optimization method, system and storage medium - Google Patents
Data transmission optimization method, system and storage medium Download PDFInfo
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- CN111342864A CN111342864A CN202010104070.7A CN202010104070A CN111342864A CN 111342864 A CN111342864 A CN 111342864A CN 202010104070 A CN202010104070 A CN 202010104070A CN 111342864 A CN111342864 A CN 111342864A
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Abstract
The invention discloses a data transmission optimization method, a system and a storage medium, wherein the method comprises the steps of starting a first data line and acquiring multi-data-line switch information of a sending terminal when the sending terminal needs to send audio data to a receiving terminal; analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and judging whether a second data line is started to transmit the audio data synchronously according to the multi-data-line switch parameters; and if so, sending the audio data to the receiving terminal through the cooperation of the second data line and the first data line so as to finish the audio data transmission. The invention aims to realize audio data transmission by defining a new I2S protocol and additionally adding a plurality of data lines on the basis of the original I2S protocol transmission, which is compatible with the traditional single-line transmission mode, enlarges the application group range, increases the popularization, simultaneously transmits a plurality of data lines, greatly improves the transmission rate, reduces the cost, improves the user experience and is convenient for users.
Description
Technical Field
The invention relates to the technical field of embedded driving, in particular to a data transmission optimization method, a data transmission optimization system and a storage medium.
Background
I2S (inter Sound Bus) is a Bus standard established for audio data transmission between digital audio devices, and adopts a design of independent wires for transmitting clock and data signals, and avoids skew induced by time difference by separating data and clock signals. The I2S bus is simple and effective, can effectively improve the quality of output data, and has wide application in various embedded audio systems.
However, the conventional I2S protocol only uses one data line for data transmission, and can only be used in the field where a small amount of data is transmitted or the transmission rate is not high, so when a large amount of data needs to be transmitted, the transmission rate is significantly reduced, and the rate can only be increased by replacing the I2S bus with another faster bus, which undoubtedly increases the cost.
Accordingly, there is still a need for development and improvement of the prior art.
Disclosure of Invention
Therefore, it is necessary to provide a data transmission optimization method, system and storage medium for the above technical problems, and the method, system and storage medium are intended to implement simultaneous transmission of audio data by defining a new I2S protocol and additionally adding a plurality of data lines on the basis of the original I2S protocol transmission, so that the method, system and storage medium are compatible with the traditional single-line transmission mode, the application group range is expanded, the popularization is increased, and meanwhile, the transmission of a plurality of data lines greatly improves the transmission rate, reduces the cost, improves the user experience, and is convenient for the user.
In order to achieve the purpose, the invention adopts the following technical scheme:
a data transmission optimization method, said data transmission optimization method comprising the steps of:
when a sending terminal needs to send audio data to a receiving terminal, starting a first data line and acquiring multi-data-line switch information of the sending terminal;
analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and judging whether a second data line is started to transmit the audio data synchronously according to the multi-data-line switch parameters;
and if the synchronous transmission of the audio data by the second data line is started, sending the audio data to the receiving terminal through the cooperation of the second data line and the first data line so as to finish the audio data transmission.
The data transmission optimization method comprises the following steps:
and if the second data line is not started to transmit the audio data synchronously, transmitting the audio data to the receiving terminal only through the first data line so as to finish the audio data transmission.
The data transmission optimization method, wherein when the sending terminal needs to send audio data to the receiving terminal, the enabling of the first data line and the obtaining of the multi-data-line switching information of the sending terminal comprise:
receiving and storing the multiple data line switch information for setting the second data line enable state, wherein the multiple data line switch information includes the multiple data line switch parameters.
The data transmission optimization method includes analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and determining whether to enable a second data line to transmit the audio data synchronously according to the multi-data-line switch parameters, where the determining includes:
analyzing the multi-data-line switch information to obtain the multi-data-line switch parameters;
obtaining a multi-data line switch flag bit in the multi-data line switch parameter for indicating the enabling state of the second data line;
and judging whether a second data line is started to synchronously transmit the audio data or not according to the multi-data-line switch zone bit.
The data transmission optimization method, wherein the audio data includes left channel audio data and right channel audio data, and the sending the audio data to the receiving terminal through cooperation of the second data line and the first data line specifically includes:
acquiring a channel selection clock signal for indicating to distinguish channel audio data;
when the sound channel selection clock signal is at a high level, synchronously sending left sound channel audio data in the audio data through the first data line and the second data line;
and when the sound channel selection clock signal is at a low level, synchronously sending right sound channel audio data in the audio data through the first data line and the second data line.
The data transmission optimization method, wherein, for left channel audio data in the audio data, the sending of the left channel audio data in the audio data synchronously through both the first data line and the second data line specifically includes:
acquiring N bits of data volume which can be processed by a CPU at one time;
the first data line transmits the lower M bits of the data bits of the left channel audio data, while the second data line transmits the upper N-M bits of the data bits of the left channel audio data; where N is 32, 64 and 128.
The data transmission optimization method, wherein the audio data includes left channel audio data and right channel audio data, and the sending the audio data to the receiving terminal only through the first data line specifically includes:
acquiring a channel selection clock signal for indicating to distinguish channel audio data;
when the sound channel selection clock signal is at a high level, sending left sound channel audio data in the audio data through the first data line;
and when the sound channel selection clock signal is at a low level, sending right sound channel audio data in the audio data through the first data line.
According to the data transmission optimization method, if the second data line is started to transmit the audio data synchronously, the data transmission mode is switched from the single-line data transmission mode to the multi-line data transmission mode.
The invention also provides a data transmission optimization system, which comprises a sending terminal and a receiving terminal, wherein the sending terminal and the receiving terminal establish transmission communication, the sending terminal and the receiving terminal both comprise a processor and a memory connected with the processor, the memory stores the data transmission optimization program, and the data transmission optimization program is executed by the processor to realize the steps in the data transmission optimization method.
The present invention also provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in the data transmission optimization method described above.
Has the advantages that:
compared with the prior art, the data transmission optimization method, the data transmission optimization system and the storage medium provided by the invention have the advantages that when a sending terminal needs to send audio data to a receiving terminal, a first data line is started and the multi-data-line switch information of the sending terminal is acquired; analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and judging whether a second data line is started to transmit the audio data synchronously according to the multi-data-line switch parameters; and if so, the sending terminal sends the audio data to the receiving terminal through the cooperation of the second data line and the first data line so as to complete the audio data transmission. The invention aims to realize audio data transmission by defining a new I2S protocol and additionally adding a plurality of data lines on the basis of the original I2S protocol transmission, which is compatible with the traditional single-line transmission mode, enlarges the application group range, increases the popularization, simultaneously transmits a plurality of data lines, greatly improves the transmission rate, reduces the cost, improves the user experience and is convenient for users.
Drawings
Fig. 1 is a flowchart of a data transmission optimization method provided in the present invention.
Fig. 2 is a flow chart of audio data transmission provided by the present invention.
Fig. 3 is a functional block diagram of the system of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart of a data transmission optimization method according to the present invention, it should be noted that the data transmission optimization method according to the embodiment of the present invention is not limited to the steps and the sequence in the flowchart shown in fig. 1, and the steps in the flowchart may be added, removed, or changed in sequence according to different requirements.
As shown in fig. 1, the data transmission optimization method provided by the present invention includes the following steps:
and S10, when the sending terminal needs to send the audio data to the receiving terminal, starting the first data line and acquiring the multi-data-line switch information of the sending terminal.
In an embodiment of the invention, the multiple data line switch information comprises multiple data line switch parameters. Wherein the multiple data line switch flag bit in the data structure of the multiple data switch parameter is used to indicate the enabling state of the second data line, and is embodied to indicate a change of the multiple data line switch flag bit by controlling the switch to be turned on and off, that is, the state of the second data line is in the enabling state or the disabling state. The multiple data line switch flag may be represented by a number, such as 0 or 1, and when the multiple data line flag is 1, it indicates that the second data line is enabled, i.e. the multi-line data transmission mode; when the multiple data line switch flag is 0, it indicates that the second data line is disabled, i.e., data transmission is performed only in a single data line manner (single-line data transmission mode). It should be understood by those skilled in the art that the multiple data line switch flags may also be represented in other ways, such as by letters, and the embodiments of the present invention are not limited in this respect.
Further, before the sending terminal needs to send the audio data to the receiving terminal, the user may set a data transmission mode according to the requirement, in an embodiment of the present invention, the data transmission mode includes a single-wire data transmission mode and a multi-wire data transmission mode, where the single-wire data transmission mode refers to data transmission only in a single-wire data line manner, that is, data transmission of the sending terminal and the receiving terminal is performed in the conventional I2S protocol. The multiline data transmission mode refers to data transmission of a transmitting terminal and a receiving terminal in a newly defined I2S protocol, and data transmission is performed by using a plurality of data lines. In the embodiment of the present invention, the number of the plurality of data lines is two or four.
The setting of the data transmission mode is specifically to set the multiple data line switch parameters in a menu setting interface in the sending terminal, and the multiple data line switch parameters are displayed by buttons. When no setting is made, the button is acquiescent to be in an opening state, which corresponds to a multi-line data transmission mode, namely, the synchronous transmission of the second data line is started. And when the user setting is detected to be finished, the multi-data-line switch information is stored in the sending terminal, so that the multi-data-line switch information is convenient to read quickly. Therefore, through setting of the multi-data-line switch parameters, the multi-data-line switch is compatible with a traditional single-line data transmission mode and a multi-line data transmission mode, production cost is reduced, and data transmission requirements of different users are met.
Furthermore, when the sending terminal needs to send the audio data to the receiving terminal, the first data line is enabled, that is, the first data line is the main transmission data line, and the second data line is the auxiliary transmission data line. And then obtaining the key information of a user clicking a multi-data-line switch button received by the sending terminal to judge whether to start a second data line for data transmission at the same time, namely whether to transmit by taking the second data line as an auxiliary transmission data line at the same time.
And S20, analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and judging whether to start a second data line to synchronously transmit the audio data according to the multi-data-line switch parameters.
That is, the step S20 specifically includes:
s21, analyzing the multi-data line switch information to obtain the multi-data line switch parameters;
s22, obtaining a multi-data line switch flag bit used for indicating the enabling state of the second data line in the multi-data line switch parameters;
and S23, judging whether to enable the second data line to synchronously transmit the audio data according to the multi-data-line switch flag bit.
That is, based on the step S10, the multi-data line switch flag is determined by the corresponding state (enable or disable, on or off) of the multi-data line switch button, and when the multi-data line switch flag shows 1, the second data line is enabled, and when the multi-data line switch flag shows 0, the second data line is disabled.
And S30, if the synchronous transmission of the audio data by the second data line is started, sending the audio data to the receiving terminal through the cooperation of the second data line and the first data line so as to complete the transmission of the audio data.
That is, based on step S20, when it is determined that the second data line is enabled, the transmitting terminal simultaneously transmits audio data using the first data line and the second data line.
That is, the transmitting terminal and the receiving terminal communicate through a newly defined I2S protocol, embodied as audio data transmitted over an I2S bus. In the embodiment of the present invention, the I2S bus is a three-wire bus, and three signals are provided in data transmission, namely, a serial clock signal, i.e., SCLK signal, for transmitting each bit of audio data according to pulses, a channel selection clock signal, i.e., WS signal, for indicating channel-differentiated audio data, and a serial data signal, i.e., SD signal, for transmitting audio data represented by two's complement. Taking a multi-data-line transmission mode as an example, a process of transmitting audio data to a receiving terminal according to the three signal transmitting terminals is specifically described as follows:
the audio data comprises left channel audio data and right channel audio data, when the channel selection clock signal, namely the WS signal, is in a high level, the left channel audio data in the audio data is synchronously transmitted through the first data line and the second data line, and when the channel selection clock signal, namely the WS signal, is in a low level, the right channel audio data in the audio data is synchronously transmitted through the first data line and the second data line.
For left channel audio data, the sending, by both the first data line and the second data line, left channel audio data in the audio data synchronously specifically includes:
the data size N bits that is the bit width that CPU once only can handle is obtained, for example, N is 32 bits, 64 bits, 128 bits, etc., and the number of bits of N is determined by the clock frequency corresponding to the serial clock signal in the transmitting terminal. In the process of transmitting left channel audio data, the left channel audio data is converted into a numerical value, the register of the first data line is used for transmitting the lower M bits of the register address of the left channel audio data, and the register of the second data line is used for transmitting the higher N-M bits of the register address of the left channel audio data.
Assuming that N is 32 bits and the number of the data lines is two, the first data line data0 transmits the left channel audio data corresponding to the lower 16 bits (i.e. the corresponding value is small), and the second data line data1 transmits the left channel audio data corresponding to the upper 16 bits (i.e. the corresponding value is large).
Assuming that N is 32 bits and the number of the data lines is four, the first data line data0 transmits the left channel audio data corresponding to the lowest 8 bits, the second data line data1 transmits the left channel audio data corresponding to the next lower 8 bits, the third data line data2 transmits the left channel audio data corresponding to the next higher 8 bits, and the fourth data line data3 transmits the left channel audio data corresponding to the highest 8 bits.
Assuming that N is 64 bits, 128 bits, when transmitting left channel audio data, and so on.
The first data line data0 is used as a main transmission data line, and the other data lines are auxiliary transmission data lines, which are collectively referred to as a second data line.
Similarly, the process of transmitting the right channel audio data is the same as the process of transmitting the left channel audio data, and therefore, the details are not described herein.
Further, whether the audio data of the left channel or the audio data of the right channel are transmitted, the first data line transmits a plurality of low-order audio data, and the second data line transmits a plurality of high-order audio data.
Of course, regardless of how many bits of valid data the audio data is converted into, the Most Significant Bit (MSB) of the data bits is always transmitted first during transmission.
Further, when transmitting the audio data of the left channel or the audio data of the right channel through the first data line and the second data line, the receiving terminal receives only the audio data of the left channel and the audio data of the right channel transmitted when the SCLK signal is at a high level. That is, as shown in fig. 2, when detecting that the SCLK signal is at a high level, the receiving terminal receives the left channel audio data and the right channel audio data sent by the sending terminal; and when detecting that the SCLK signal is at a low level, the receiving terminal does not receive the left channel audio data or the right channel audio data sent by the sending terminal, namely, the receiving terminal enters a high impedance state. In this way, the accuracy and validity of either the left channel audio data or the right channel audio data is ensured.
It should be noted that, if it is determined that the second data line is not enabled to transmit the audio data synchronously, the sending terminal only sends the audio data to the receiving terminal through the first data line to complete the audio data transmission, that is, the transmission is performed by using the conventional I2S bus.
Therefore, the data transmission mode is diversified by additionally adding a plurality of data lines, users with different speed requirements are met, the traditional single-line data transmission mode is compatible, and convenience is brought to the users.
Example two
Based on the data transmission optimization method, the invention also correspondingly provides a data transmission optimization system, as shown in fig. 3. The data transmission optimization system 200 includes a sending terminal and a receiving terminal that establish communication via a defined I2S protocol, wherein the sending terminal and the receiving terminal each include a processor 11 and a memory 22 coupled to the processor, and fig. 3 shows only some of the components of the system 200, but it is to be understood that not all of the shown components are required and that more or fewer components may be implemented instead.
The sending terminal may be a mobile terminal, such as a mobile phone, a tablet computer, or a non-mobile terminal, such as a server. The receiving terminal can be a mobile phone or a sound box. The transmitting terminal and the receiving terminal are not limited as long as they satisfy the requirement of a device capable of transmitting and receiving audio data.
The memory 22 may be an internal storage unit of the data transfer optimization system 200 in some embodiments, such as a memory of the data transfer optimization system 200. The memory 22 may also be an external storage device of the data transmission optimization system 200 in other embodiments, such as a plug-in usb disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a flash Card (FlashCard), and the like, which are provided on the data transmission optimization system 200. Further, the memory 22 may also include both an internal storage unit and an external storage device of the data transmission optimization system 200. The memory 22 is used for storing application software installed in the data transmission optimization system 200 and various types of data, such as the data transmission optimization program code. The memory 22 may also be used to temporarily store data that has been output or is to be output. In one embodiment, the memory 22 stores a data transmission optimization program, which can be executed by the processor 11 to implement the data transmission optimization method of the present application, particularly as described above.
The processor 11 may be, in some embodiments, a Central Processing Unit (CPU), a microprocessor, a mobile phone baseband processor or other data Processing chip, and is configured to run program codes stored in the memory 22 or process data, for example, execute the data transmission optimization method, and the like, as described in the above method.
The present invention also provides a computer-readable storage medium, which stores one or more programs, where the one or more programs are executable by one or more processors (in this embodiment, the processor 11) to implement the steps in the data transmission optimization method of the present invention, specifically, the method described above.
In summary, the present invention provides a data transmission optimization method, system and storage medium, the method includes enabling a first data line and obtaining multi-data-line switching information of a sending terminal when the sending terminal needs to send audio data to a receiving terminal; analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and judging whether a second data line is started to transmit the audio data synchronously according to the multi-data-line switch parameters; and if so, the sending terminal sends the audio data to the receiving terminal through the cooperation of the second data line and the first data line so as to complete the audio data transmission. The invention aims to realize audio data transmission by defining a new I2S protocol and additionally adding a plurality of data lines on the basis of the original I2S protocol transmission, which is compatible with the traditional single-line transmission mode, enlarges the application group range, increases the popularization, simultaneously transmits a plurality of data lines, greatly improves the transmission rate, reduces the cost, improves the user experience and is convenient for users.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A data transmission optimization method, characterized in that the data transmission optimization method comprises the steps of:
when a sending terminal needs to send audio data to a receiving terminal, starting a first data line and acquiring multi-data-line switch information of the sending terminal;
analyzing the multi-data-line switch information to obtain multi-data-line switch parameters, and judging whether a second data line is started to transmit the audio data synchronously according to the multi-data-line switch parameters;
and if the synchronous transmission of the audio data by the second data line is started, sending the audio data to the receiving terminal through the cooperation of the second data line and the first data line so as to finish the audio data transmission.
2. The data transmission optimization method of claim 1, further comprising:
and if the second data line is not started to transmit the audio data synchronously, transmitting the audio data to the receiving terminal only through the first data line so as to finish the audio data transmission.
3. The data transmission optimizing method according to claim 1, wherein the enabling of the first data line and the obtaining of the multi-data-line switching information of the transmitting terminal when the transmitting terminal needs to transmit audio data to the receiving terminal comprise:
receiving and storing the multiple data line switch information for setting the second data line enable state, wherein the multiple data line switch information includes the multiple data line switch parameters.
4. The data transmission optimization method according to claim 3, wherein the analyzing the multi-data-line switching information to obtain multi-data-line switching parameters, and the determining whether to enable the second data line to transmit the audio data synchronously according to the multi-data-line switching parameters specifically includes:
analyzing the multi-data-line switch information to obtain the multi-data-line switch parameters;
obtaining a multi-data line switch flag bit in the multi-data line switch parameter for indicating the enabling state of the second data line;
and judging whether a second data line is started to synchronously transmit the audio data or not according to the multi-data-line switch zone bit.
5. The data transmission optimization method according to claim 1, wherein the audio data includes left channel audio data and right channel audio data, and the sending the audio data to the receiving terminal through cooperation of the second data line and the first data line specifically includes:
acquiring a channel selection clock signal for indicating to distinguish channel audio data;
when the sound channel selection clock signal is at a high level, synchronously sending left sound channel audio data in the audio data through the first data line and the second data line;
and when the sound channel selection clock signal is at a low level, synchronously sending right sound channel audio data in the audio data through the first data line and the second data line.
6. The data transmission optimization method according to claim 5, wherein, for the left channel audio data in the audio data, the synchronously sending the left channel audio data in the audio data through both the first data line and the second data line specifically includes:
acquiring N bits of data volume which can be processed by a CPU at one time;
the first data line transmits the lower M bits of the data bits of the left channel audio data, while the second data line transmits the upper N-M bits of the data bits of the left channel audio data; where N is 32, 64 and 128.
7. The data transmission optimization method according to claim 2, wherein the audio data includes left channel audio data and right channel audio data, and the transmitting the audio data to the receiving terminal through only the first data line specifically includes:
acquiring a channel selection clock signal for indicating to distinguish channel audio data;
when the sound channel selection clock signal is at a high level, sending left sound channel audio data in the audio data through the first data line;
and when the sound channel selection clock signal is at a low level, sending right sound channel audio data in the audio data through the first data line.
8. The data transmission optimization method of claim 1, wherein if the second data line is determined to be enabled for synchronous transmission of the audio data, the data transmission mode is switched from the single-line data transmission mode to the multi-line data transmission mode.
9. A data transmission optimization system, characterized in that the data transmission optimization system comprises a sending terminal and a receiving terminal, the sending terminal and the receiving terminal establish transmission communication, the sending terminal and the receiving terminal each comprise a processor and a memory connected with the processor, the memory stores the data transmission optimization program, and the data transmission optimization program is executed by the processor for implementing the steps in the data transmission optimization method according to any one of claims 1 to 8.
10. A computer-readable storage medium, storing one or more programs, which are executable by one or more processors, to implement the steps in the data transmission optimization method according to any one of claims 1 to 8.
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