CN113347428B - Decoding method and decoding device - Google Patents
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Abstract
The embodiment of the application provides a decoding method and decoding equipment. When decoding data, firstly determining a data relation criterion, comparing the coded bit stream data with the data relation criterion, if the coded bit stream data meets the defined data relation criterion, carrying out logic operation on the bit stream data of a specific bit meeting the relation criterion, and carrying out assignment on the bit stream data of other bits so as to obtain corresponding semi-decoded data, and if the coded bit stream data does not meet the data relation criterion, carrying out secondary judgment on the coded data. By the decoding method provided by the embodiment of the application, the multi-bit stream data is effectively decoded, and the decoding effect and the decoding quality of the decoding method are better.
Description
Technical Field
The present application relates to the field of data transmission technologies, and in particular, to a decoding method and a decoding device.
Background
When the data signal is transmitted, the data signal needs to be correspondingly scrambled and correspondingly decoded, so as to enhance the data transmission effect and the transmission quality.
The decoding method is a process of restoring a digital code to its content or converting an electric pulse signal, an optical signal, a radio wave, or the like into information, data, or the like represented by it by a specific method. Decoding is the process by which the recipient recovers the received symbols or codes into information, each encoding algorithm having a particular decoding algorithm associated therewith. In the field of display technology, each bitstream mostly contains a fixed number of bits, and then in the decoding process, it is often necessary to perform overall processing on one bitstream, which results in high hardware cost for supporting decoding. Moreover, different display products may correspond to different decoding modes. For example, in a liquid crystal display, the original data is usually 8bit data, and the corresponding codec algorithm is 8B/9B or 8B/10B. For a product with high color depth, such as an AMOLED product, its original data is usually 10bits, which requires 10bits of coding and decoding technology to ensure the correctness and integrity of the signal in transmission. However, in the existing decoding technology, when the number of original data bits is large, there are also problems that the original data corresponding to a large number of bits cannot be decoded effectively, the decoded data is incomplete, the decoding rate is slow, and the decoding effect is not ideal.
In summary, in the conventional digital transmission technology, when decoding original data corresponding to a large number of bits, there are problems that the decoded data is incomplete and the decoding effect is not ideal.
Disclosure of Invention
The embodiment of the application provides a decoding method and decoding equipment, so as to effectively solve the problems of incomplete decoding data, unsatisfactory decoding effect and the like in a data transmission technology.
In order to solve the above technical problem, the technical method provided in the embodiment of the present application is as follows:
in a first aspect of the embodiments of the present application, a decoding method is provided, which includes the following steps:
acquiring original data, coding the original data, and acquiring coded bit stream data;
determining a data relation criterion, and judging the bit stream data according to the data relation criterion;
if the bit stream data meets the data relation criterion, performing logic operation on the bit stream data of a first designated bit, and assigning values to the bit stream data which is not corresponding to the first designated bit to obtain first decoding data corresponding to the bit stream data;
if the bit stream data does not meet the data relation criterion, performing a second judgment on the bit stream data:
if the bit stream data corresponding to the second designated bit is different, performing logic operation on part of the bits to obtain corresponding first decoding data;
if the bit stream data corresponding to the second designated bit is the same, outputting the bit stream data and obtaining corresponding first decoding data;
and processing the first decoding data to obtain second decoding data.
According to an embodiment of the application, the data relation criterion includes: the zeroth bit N [0] of the bit stream data is the same as the first bit [1], and the fifth bit [5] and the sixth bit N [6] of the bit stream data are the same.
According to an embodiment of the present application, if the bitstream data satisfies the data relation criterion;
the second finger position is: a fifth bit N [5], a sixth bit N [6], an eighth bit N [8] and a tenth bit N [10].
According to an embodiment of the present application, if the bitstream data satisfies the data relation criterion;
the non-first designated position is: a zeroth bit N [0], a first bit N [1], a second bit N [2], a third bit N [3], a fourth bit N [4], a seventh bit N [7], a ninth bit N [9], and an eleventh bit N [11].
According to an embodiment of the present application, when the second judgment is performed on the bitstream data, the method specifically includes the following steps:
the second designated bit at least comprises two bits, and the size of the bit stream data corresponding to the second designated bit is compared.
According to an embodiment of the present application, the second designated bit is a zeroth bit N [0] and a first bit N [1], and whether values corresponding to the zeroth bit N [0] and the first bit N [1] are the same or not is determined.
According to an embodiment of the application, when the bit stream data corresponding to the second designated bit is different, the bit stream data further includes a remaining part of bits, the part of bits are a first bit N [1], a fourth bit N [4], a sixth bit N [6], a seventh bit N [7] and a ninth bit N [9], and the remaining part of bits are a zeroth bit N [0], a second bit N [2], a third bit N [3], a fifth bit N [5], an eighth bit N [8], a tenth bit N [10] and an eleventh bit N [11].
According to an embodiment of the present application, when the bitstream data corresponding to the second designated bit are different, the method further includes the following steps:
and carrying out logic operation on the part of bits and carrying out assignment on the rest part of bits.
According to an embodiment of the present application, when the first decoded data is processed, the zeroth bit data corresponding to the first decoded data is discarded, and the second decoded data is obtained.
According to the second aspect of the embodiments of the present application, there is also provided a decoding device, which decodes data according to the decoding method provided in the embodiments of the present application when decoding the received data.
To sum up, the beneficial effect of this application embodiment is:
the embodiment of the application provides a decoding method and decoding equipment. When decoding the encoded data, in the embodiment of the present application, a data relationship criterion is first determined, and the encoded bitstream data is compared with the data relationship criterion, if the encoded bitstream data satisfies the defined data relationship criterion, the bitstream data of a specific bit satisfying the relationship criterion is subjected to a logical operation, and other bit bitstream data are subjected to an assignment, so as to obtain corresponding semi-decoded data, if the encoded bitstream data does not satisfy the data relationship criterion, the encoded data is subjected to a secondary judgment, in a secondary judgment process, by judging whether the bitstream data values corresponding to the specific bit are the same, if so, the bitstream data is directly output, and if not, the bitstream data corresponding to the specific bit are subjected to the logical operation, and finally, the decoded data required in the embodiment of the present application is obtained. By the decoding method provided by the embodiment of the application, the multi-bit stream data is effectively decoded, and the decoding effect and the decoding quality of the decoding method are better.
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The technical solutions and other advantages of the present application will become more apparent from the detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic decoding flow chart of a decoding method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart of a comparison process provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of another data comparison process provided in the embodiments of the present application;
fig. 4 is a schematic flowchart of another decoding algorithm provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. 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 application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Meanwhile, it should be noted that the symbols or expressions appearing in the embodiments of the present application represent the following meanings:
in the corresponding bit stream, the lowest bit is the zeroth bit N [0], the next lowest bit is the first bit N [1], and so on until the highest bit. For example, the bit stream data is 0101, the zeroth bit number corresponding to the zeroth bit is 1, the first bit number corresponding to the first bit is 1, the second bit number corresponding to the second bit is 0, and the third bit number corresponding to the third bit stream is 1. The zeroth bit represents the position in the bit stream, the zeroth bit represents the content corresponding to the first bit, and is usually "0" or "1", and the rest bits can be analogized in turn.
"a = = B" represents: a is identical to B.
"a = B" represents: b is assigned to A.
"A =. About. B" represents: b is assigned to A after negation.
"-B" represents: not, i.e. negating B.
"^ B" stands for: and (4) performing exclusive-or operation.
N [ i ] represents: corresponding to the ith bit in the data stream.
For high color depth display products, the original data of the high color depth display products generally has a higher bit stream number when the data is transmitted. In order to ensure the display effect of the high color depth display product, the original data of the high color depth display product needs to be processed by adopting a higher-bit encoding and decoding technology, so that the correctness and the integrity of the original data in the transmission process are ensured.
In the embodiment of the present application, the bit number corresponding to the high color depth display product is 10bits as an example, and after the original data of the high color depth display product is encoded, the 10bits of data are converted into 12bits of data. Therefore, when the formed 12-bit data is decoded, a corresponding 12-bit decoding technique is required to decode the data.
In the embodiment of the present application, 12-bit decoded data is taken as an example, data of 10bits is converted into data of 12bits, and the 12-bit data is decoded, so as to decode encoded data, thereby ensuring the integrity in the data transmission process and effectively improving the decoding effect of the display panel. Preferably, bit data of other bits may also be taken as an example, for example, the bit of the bit data is greater than 12, and the like, and the principle of the decoding method is the same as that of the decoding method provided in the present application, and details are not described here again.
As shown in fig. 1, fig. 1 is a schematic decoding flow diagram of a decoding method according to an embodiment of the present application. The decoding method in the embodiment of the application comprises the following steps:
s100: acquiring original data, coding the original data, and acquiring coded bit stream data;
s101: determining a data relation criterion, and judging the bit stream data according to the data relation criterion;
s102: if the bit stream data meets the data relation criterion, performing logic operation on the bit stream data of a first designated bit, and assigning values to the bit stream data which is not corresponding to the first designated bit to obtain first decoding data corresponding to the bit stream data;
s103: if the bit stream data does not meet the data relation criterion, performing second judgment on the bit stream data:
s104: if the bit stream data corresponding to the second designated bit is different, performing logic operation on part of the bits to obtain corresponding first decoding data;
s105: if the bit stream data corresponding to the second designated bit is the same, outputting the bit stream data and obtaining corresponding first decoding data;
s106: and processing the first decoding data to obtain second decoding data.
Specifically, the embodiment of the present application describes an encoding method for converting 10-bit data into 12-bit data as an example. When the encoded data is decoded, the encoded data is decoded by adopting a dual-judgment mode in the embodiment of the application, so that the aim of improving the decoding quality is fulfilled.
First, an original data is provided, and the original data can be encoded data encoded by an encoder. When encoding data, the encoding may be performed according to the data relation criterion provided in the embodiments of the present application. Thus, the bit stream data obtained after the encoding is finished has specific data characteristics and encoding information. Therefore, when decoding, the data can be identified according to the data relation criterion in the embodiment of the application.
After the encoded bit stream data information is obtained, the encoded bit stream data is judged and decoded step by step according to a determined data relation criterion, the data relation criterion provided in the embodiment of the application can be a corresponding relation of numerical values on different bit positions or a corresponding relation of numerical values on specific or appointed bit positions, and the definition of the data relation criterion can be set according to specific encoded data.
In the embodiment of the application, when the encoded data is decoded, the bit stream data is compared according to a specific data relation criterion. Thus, the bitstream data is compared to the data relation criterion. As shown in fig. 2, fig. 2 is a schematic diagram of a comparative process provided in the embodiment of the present application. If the obtained encoded bitstream data can meet the data relation criterion, logic operation is performed on the bitstream data on certain specific bits or designated bits in the bitstream data according to the relation in the data relation criterion.
The first decoded data obtained in the embodiment of the present application is incomplete decoded data, and the number of bits in the incomplete decoded data is generally greater than the number of bits after complete decoding, so that the incomplete decoded data needs to remove redundant bits, and finally, complete decoded data required in the embodiment of the present application is obtained.
As shown in fig. 3, fig. 3 is another schematic diagram of a data comparison process provided in the embodiment of the present application. If the obtained encoded bit stream data can not meet the data relation criterion, carrying out secondary comparison on the encoded bit stream data, and decoding the bit stream data through secondary comparison and judgment.
Specifically, when the comparison is performed for the second time, the comparison is performed on the bit stream data according to another data relation criterion. Specifically, the bit stream data of the second designated bit is compared and judged, if the bit stream data corresponding to the second designated bit are different in size, logic operation is performed on part of the bit, corresponding first decoded data is obtained, meanwhile, the rest of the bit is directly assigned, and finally the first decoded data is obtained.
The resulting incompletely decoded first decoded data is then processed to obtain completely decoded second decoded data.
When the second time of comparison is carried out, if the corresponding bit stream data on the second designated bit are the same, the bit stream data are directly output, and corresponding first decoding data are obtained.
The first decoded data is processed again, that is, S107: and outputting the second decoded data.
Resulting in the final fully decoded second decoded data.
Therefore, in the embodiment of the present application, the encoded data is decoded by performing twice judgment on the originally obtained encoded data, so as to achieve the purpose of improving the decoding quality.
Further, as shown in fig. 4, fig. 4 is a schematic flowchart of another decoding algorithm provided in the embodiment of the present application. For further explanation of the decoding process. In the embodiment of the present application, a specific data relationship criterion and bitstream data information are taken as an example for explanation, and in the embodiment, data [11:0 is original coded data, the original coded data N [ i ] is 12bits, the decoded data M [10] is decoded data, and the decoded data M [ i ] is 10 bits. As shown in fig. 4.
First, a data relation criterion is set. The data relationship criterion provided in the embodiment of the present application is: it is defined that the zero bit N0 and the 1 st bit N1 have the same bit value and that the fifth bit N5 and the sixth bit N6 have the same value.
Specifically, OR (XOR (N [0], N [1], XOR (N [5], N [6 ])) = =0, and it is determined whether OR not the zeroth bit N [0] and the 1 st bit N [1] are equal, and at the same time, whether OR not the fifth bit N [5] and the sixth bit N [6] are equal.
When the bitstream data to be decoded satisfies the above relationship criterion, performing a logic operation on a numerical value of a first specified bit, where in this embodiment of the present application, the defined first specified bit is: a fifth bit N [5], a sixth bit N [6], an eighth bit N [8], and a tenth bit N [10]. In particular, the method comprises the following steps of,
n5 = N5; (the fifth bit N5 of the encoded data is inverted and assigned as the fifth bit N5 of the first decoded data).
N6 = N6; (the value is assigned to the sixth bit N6 of the first decoded data after inverting the sixth bit N6 of the encoded data).
N8 = N8; (the eighth bit N8 of the encoded data is inverted and assigned as the eighth bit N8 of the first decoded data).
N10 (= N10); (the tenth bit N10 of the encoded data is inverted and assigned as the tenth bit N10 of the first decoded data).
And meanwhile, directly assigning values without processing the non-first designated bits. In the examples of the present application, the unspecified sites are: the zero bit N [0], the first bit N [1], the second bit N [2], the third bit N [3], the fourth bit N [4], the seventh bit N [7], the ninth bit N [9], and the eleventh bit N [11], and when assigning, the obtained bit value corresponding to the first decoded data may be the value of the bit of the original encoded data.
First decoded data of zeroth bit N [0] to eleventh bit N [11] obtained by the decoding processing.
When the bit stream data does not satisfy the data relation criterion, the secondary judgment is carried out on the coded data N [ i ], specifically, when the secondary judgment is carried out, the size comparison is carried out on the bit stream data of a plurality of specified bits.
In the embodiment of the present application, when the second determination is performed, the specified specific bit may be a second specified bit, where the second specified bit is at least two bits. Taking the zeroth bit N0 and the first bit N1 as two second designated bits as an example, according to the data relation criterion, it is determined whether the sizes of the zeroth bit N0 and the first bit N1 in the bit stream data are the same.
Specifically, N [0] -XOR N [1] = =1; (determine whether the second designated bit, the zeroth bit N [0], is equal to the 1 st bit N [1 ]).
If the bit values of the zeroth bit N0 and the first bit N1 are different in size, logic operation is carried out on part of the bits, assignment is carried out on the rest of the bits, and when assignment is carried out, the corresponding bit values in the original bits can be directly substituted to finally obtain first decoding data information. In the embodiment of the application, the defined second designated bit is a zeroth bit N [0] and a first bit N [1]; some of the bits are a first bit N [1], a fourth bit N [4], a sixth bit N [6], a seventh bit N [7], and a ninth bit N [9], and the remaining bits are a zeroth bit N [0], a second bit N [2], a third bit N [3], a fifth bit N [5], an eighth bit N [8], a tenth bit N [10], and an eleventh bit N [11]. Thereby realizing decoding processing of the encoded data. Specifically;
n1 = N1; (the first bit N1 of the encoded data is inverted and assigned to the first bit N1 of the first decoded data.)
N4 = N4; (the fourth bit N4 of the encoded data is inverted and assigned as the fourth bit N4 of the first decoded data.)
N6 = N6; (inverting the sixth bit N6 of the encoded data and assigning it to the sixth bit N6 of the first decoded data.)
N7 = N7; (the seventh bit N7 of the encoded data is inverted and assigned as the seventh bit N7 of the first decoded data.)
N < 9 > = -N < 9 >; (the ninth bit N9 of the encoded data is inverted and assigned as the ninth bit N9 of the first decoded data.)
And if the bit value of the zeroth bit N [0] is the same as that of the first bit N [1], directly outputting the data and obtaining first decoded data M [9 ].
The first decoded data obtained under different judgment conditions are incomplete decoded data, and redundant bit values are discarded because the number of bits in the first decoded data in the embodiment of the application is more than that of the finally decoded data. In the embodiment of the present application, the value of the zeroth bit [0] is discarded, and finally, the completely decoded second decoded data is obtained. Thereby enabling decoding of the entire encoded data.
Further, an embodiment of the present application further provides a decoding device, where the decoding device includes a processor, where the processor is configured to execute the encoding and decoding instructions, and perform decoding processing on the encoded data. When the decoding equipment provided by the embodiment of the application decodes data, the multi-bit stream data can be decoded, the decoding effect is better, and the integrity and the accuracy of the data in the decoding transmission process can be ensured.
The decoding device provided in the present application can be applied to a display panel. The display panel includes a source driver or data driver for receiving a 10bits destination bit stream and encoding the 110bits destination bit stream into a 12bits destination bit stream. And decoding the original data stream of which the target bit stream is 12bits, and further taking the original data stream as a data signal to drive the display panel to perform corresponding display.
The decoding of the target bitstream may be performed within a processor of the display panel. The processor controls the operation of the decoding device, and may also be referred to as a Central Processing Unit (CPU). The processor may be an integrated circuit chip having the processing capability of the signal sequence. The processor may also be a general purpose processor, a digital signal sequence processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The processor is used for executing the instructions to realize the decoding method provided by any one of the embodiments and possible combinations.
It can be understood that the present application provides a decoding device, which extracts several short encoded bit stream data from the original data bit stream and performs decoding processing based on the encoded bit stream data. When decoding is performed, decoding is performed according to the decoding method provided in the embodiment of the present application, and in the decoding process, logic operation is few, and a logic circuit is simple. The present application further provides a computer-readable storage medium comprising a memory storing instructions that, when executed, implement the decoding method provided by any one of the embodiments and possible combinations thereof.
The foregoing describes a decoding method and a decoding apparatus provided in the embodiments of the present application in detail, and specific examples are applied in the present application to explain the principles and embodiments of the present application, and the description of the foregoing embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (6)
1. A decoding method, comprising the steps of:
acquiring original data, coding the original data, and acquiring coded bit stream data;
determining a data relation criterion, and judging the bit stream data according to the data relation criterion, wherein the data relation criterion comprises: the zeroth bit N [0] and the first bit [1] of the bit stream data are the same, and the fifth bit [5] and the sixth bit N [6] of the bit stream data are the same;
if the bit stream data meets the data relation criterion, performing logic operation on the bit stream data of the first designated bit, and assigning values to the bit stream data corresponding to the non-first designated bit to obtain first decoding data corresponding to the bit stream data;
if the bit stream data does not satisfy the data relationship criterion, performing a second judgment on the bit stream data, wherein when the second judgment is performed on the bit stream data, the method specifically includes the following steps:
the second designated bit at least comprises two bits, and the size of the bit stream data corresponding to the second designated bit is compared; the second designated bit is a zero bit N [0] and a first bit N [1], and whether the values corresponding to the zero bit N [0] and the first bit N [1] are the same is judged:
if the bit stream data corresponding to the second designated bit is different, performing logic operation on a part of bits to obtain corresponding first decoding data, wherein the bit stream data also comprises a residual part of bits, and assigning values to the residual part of bits;
if the bit stream data corresponding to the second designated bit is the same, outputting the bit stream data and obtaining corresponding first decoding data;
and processing the first decoding data to obtain second decoding data.
2. The decoding method according to claim 1, wherein if the bitstream data satisfies the data relation criterion;
the first designated position is: a fifth bit N [5], a sixth bit N [6], an eighth bit N [8], and a tenth bit N [10].
3. The decoding method according to claim 2, wherein if the bitstream data satisfies the data relation criterion;
the non-first designated position is: a zeroth bit N [0], a first bit N [1], a second bit N [2], a third bit N [3], a fourth bit N [4], a seventh bit N [7], a ninth bit N [9], and an eleventh bit N [11].
4. The decoding method according to claim 1, wherein the partial bits are a first bit N [1], a fourth bit N [4], a sixth bit N [6], a seventh bit N [7] and a ninth bit N [9], and the remaining partial bits are a zeroth bit N [0], a second bit N [2], a third bit N [3], a fifth bit N [5], an eighth bit N [8], a tenth bit N [10] and an eleventh bit N [11].
5. The decoding method according to claim 1, wherein, when the first decoded data is processed, the zeroth bit data corresponding to the first decoded data is discarded, and the second decoded data is obtained.
6. A decoding device comprising a processor configured to execute instructions to implement a decoding method according to any one of claims 1 to 5.
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| WO2019214139A1 (en) * | 2018-05-11 | 2019-11-14 | 深圳市华星光电技术有限公司 | Encoding method and apparatus, and readable storage medium |
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