CN115118961B - Video data testing system, method and application thereof - Google Patents
Video data testing system, method and application thereof Download PDFInfo
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- CN115118961B CN115118961B CN202211028748.3A CN202211028748A CN115118961B CN 115118961 B CN115118961 B CN 115118961B CN 202211028748 A CN202211028748 A CN 202211028748A CN 115118961 B CN115118961 B CN 115118961B
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Abstract
The embodiment of the invention discloses a video data test system, a method and application thereof, wherein the video data test system comprises: a setting module for providing a data relationship; the video source module is electrically connected with the setting module and used for randomly generating video test data according to the data relation and generating a video code stream according to the video test data; the display module is electrically connected with the video source module and provided with a video transmission interface for receiving the video code stream from the video source module through the video transmission interface and recovering the received video code stream into video test data, and the display module is also used for receiving the data relation from the setting module, verifying the recovered video test data according to the data relation and sending a verification result to the setting module.
Description
Technical Field
The invention relates to the technical field of image transmission, in particular to a video data testing system, a video data testing method and application of the video data testing system and the video data testing method in testing a video transmission interface of a micro display chip.
Background
In order to verify whether the video transmission interface of the micro display chip functions normally, the video transmission interface of the micro display chip is usually tested. As shown in fig. 1, the conventional video data testing system includes a data source module 11, configured to provide test data to a display module 12, where the test data is usually a video real-time signal, and when the display module 12 receives the test data through a video transmission interface, a comparison unit 121 compares the test data with original video data stored in a storage unit 122 in advance, and outputs a comparison result, and if the comparison is correct, it indicates that the video transmission interface is functioning normally.
However, the existing video data testing method has the following drawbacks. Firstly, the existing test data is usually a video real-time signal, and the test scenes are not rich enough, so that the test coverage rate is insufficient; secondly, the display module end needs to store original video data in advance, and particularly when the video data test adopts full-frame video data comparison, a large-capacity memory is needed to store the original video data, so that the test cost is high; thirdly, the existing video data testing method needs to compare the test data section by section and receive the test data through the video transmission interface, which causes the complex testing operation flow, and the video transmission needs to be interrupted frequently, which affects the bandwidth testing effect.
Disclosure of Invention
In view of this, embodiments of the present invention provide a video data testing system, method and application thereof, so as to solve at least one technical problem of insufficient test coverage, high test cost and low test efficiency in the prior art.
According to a first aspect, an embodiment of the present invention provides a video data testing system, including:
a setting module for providing a data relationship;
the video source module is electrically connected with the setting module and is used for randomly generating video test data according to the data relation and generating a video code stream according to the video test data, the video test data comprises a plurality of test data fragments, and the test data fragments have the data relation;
the display module, with set up the module with video source module electricity is connected, the display module has the video transmission interface, is used for passing through the video transmission interface is followed the video source module is received the video code stream to resume video test data with the video code stream that receives, the display module still is used for following set up the module and receive the data relation, according to the data relation carries out the check to the video test data who resumes, and with the check result send to set up the module.
In some optional embodiments, the video test data is composed of a plurality of first test data segments and a corresponding plurality of second test data segments, each of the first test data segments is a randomly generated multi-bit random number, and each of the second test data segments has the data relationship with the corresponding first test data segment;
the data relationship comprises a relative position relationship and a function mapping relationship between the first test data segment and the corresponding second test data segment.
In some optional embodiments, the video source module comprises:
the test data generating unit is used for randomly generating a plurality of first test data fragments and respectively generating corresponding second test data fragments from the first test data fragments according to the data relationship;
and the image generation unit is used for packing the video test data according to the requirements of video formats and interface protocols to generate the video code stream.
In some optional embodiments, the test data generating unit includes:
a random number subunit for randomly generating a plurality of first test data segments, each of the first test data segments including a multi-bit random number;
the first operation subunit is configured to perform, according to the function mapping relationship, function operation on the multi-bit random numbers in the first test data segments respectively to obtain corresponding second test data segments;
and the first position subunit is configured to determine, according to the relative position relationship, a position of each second test data segment in the video test data, relative to the corresponding first test data segment, so as to form the video test data.
In some alternative embodiments, the display module comprises:
the video transmission interface is used for receiving the video code stream and performing unpacking and decoding to recover the video code stream into video test data;
and the verification unit is used for verifying the first test data segment and the corresponding second test data segment in the recovered video test data according to the data relationship and sending a verification result to the setting module.
In some optional embodiments, the verification unit comprises:
a second position subunit, configured to determine, according to the relative position relationship, each first test data segment and the corresponding second test data segment in the recovered video test data;
the second operation subunit is configured to perform function operation on each first test data segment and the corresponding second test data segment according to a function mapping relationship in the data relationship;
and the judging subunit is used for judging whether the video transmission interface has errors or not according to the operation result of the second operation subunit.
According to a second aspect, an embodiment of the present invention provides a video data testing method, including:
randomly generating video test data according to a data relation, wherein the video test data comprises a plurality of test data fragments, and the data relation is formed among the test data fragments;
generating a video code stream according to the video test data;
receiving the video code stream by using a video transmission interface, and recovering the received video code stream into video test data;
and verifying the recovered video test data according to the data relation.
In some optional embodiments, the randomly generating video test data according to the data relationship includes:
randomly generating a plurality of first test data segments;
according to the function mapping relation in the data relation, performing function operation on each first test data segment respectively to obtain a corresponding second test data segment;
and respectively determining the position of each second test data segment in the video test data relative to the corresponding first test data segment according to the relative position relationship in the data relationship so as to form the video test data.
In some optional embodiments, the verifying the recovered video test data according to the data relationship includes:
determining each first test data segment and the corresponding second test data segment in the recovered video test data according to the relative position relationship;
according to the function mapping relation, performing function operation on each first test data segment and the corresponding second test data segment respectively;
and judging whether the function of the video transmission interface is normal or not according to the operation result of the function operation.
According to a third aspect, an embodiment of the present invention provides an application of the video data testing system according to any one of the first aspect or the video data testing method according to any one of the second aspect to a video transmission interface test of a micro display chip.
According to the video data testing system, the video data testing method and the application thereof, as the video testing data are randomly generated according to a certain data relation, the testing coverage rate can be improved, the randomly generated data and the received data can be verified through a preset function operation algorithm according to the data relation, a large-capacity storage is not needed for storing the original video data, the testing cost can be reduced, the testing process is simple, and the testing efficiency can be improved.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 shows a schematic diagram of a prior art video data testing system;
FIG. 2 shows a schematic diagram of a video data testing system according to an embodiment of the invention;
FIG. 3 shows a schematic diagram of a video data testing system according to another embodiment of the invention;
FIG. 4 shows a schematic diagram of a video data testing system according to yet another embodiment of the invention;
FIG. 5 is a schematic diagram illustrating video test data of a video data test system according to an embodiment of the present invention;
FIG. 6 shows a logic circuit diagram of a second operation subunit of the video data test system according to an embodiment of the invention;
FIG. 7 is a schematic diagram illustrating another video test data of a video data test system according to an embodiment of the present invention;
FIG. 8 illustrates a flow diagram of a method of video data testing in accordance with an embodiment of the present invention;
fig. 9 shows a flowchart of a video data testing method according to another embodiment of the present invention.
Detailed Description
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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Fig. 2 illustrates a video data testing system according to an embodiment of the present invention, which may include a setup module 21, a video source module 22, and a display module 23, as illustrated in fig. 2. The setting module 21 is configured to provide a data relationship; the video source module 22 is electrically connected to the setting module 21, and is configured to randomly generate video test data according to a data relationship, and generate a video code stream according to the video test data, where the video test data may include multiple test data segments, and the test data segments have the data relationship; the display module 23 is electrically connected to the setting module 21 and the video source module 22, the display module 23 has a video transmission interface for receiving a video code stream from the video source module 22 through the video transmission interface and recovering the received video code stream into video test data, the display module 23 is further configured to receive the data relationship from the setting module 21, verify the recovered video test data according to the data relationship, and send the verification result to the setting module 21. If the verification is correct, it indicates that the function of the video transmission interface of the display module 23 is normal; if the error exists in the verification, the video transmission interface can be adjusted according to the verification result.
In this embodiment, the video source module 22 may obtain the data relationship from the setting module 21, and randomly generate the video test data by using the data relationship, because the video test data is randomly generated, the randomly generated video test data can cover various possible test scenes, and the test coverage rate is much higher than that of the video real-time signal used for performing the video transmission test in the prior art, because the video real-time signal is not manually controllable and is repeated many times, and the randomly generated data can avoid the repetition as much as possible. Moreover, a certain data relationship exists between the video test data randomly generated by the video source module 22, and the display module 23 can acquire the data relationship from the setting module 21, so that the video test data recovered by the display module 23 can be verified by using the data relationship, and therefore, as in the prior art, a large-capacity memory is not required to store the original video data, so that the test cost is reduced. In addition, because the video test data is randomly generated according to a certain data relationship, the video test data can be verified through a preset function operation algorithm according to the data relationship, the test data does not need to be verified section by section and received through the video transmission interface as in the prior art, and the test efficiency is higher.
Therefore, in the video data testing system of the embodiment of the invention, because the video testing data is randomly generated according to a certain data relationship, the testing coverage rate can be improved, the randomly generated data and the received data can be verified through a preset function operation algorithm according to the data relationship, a large-capacity memory is not needed for storing the original video data, the testing cost can be reduced, the testing process is simple, and the testing efficiency can be improved.
In order to further improve the test coverage of the randomly generated video test data, in some optional implementations of the embodiments of the present invention, the video test data may be composed of a plurality of first test data segments and a plurality of corresponding second test data segments, each first test data segment is a randomly generated multi-bit random number, and each second test data segment has the data relationship with the corresponding first test data segment; the data relationship may include a functional mapping relationship and a relative positional relationship between the first test data segment and the corresponding second test data segment.
In this embodiment, in each round of test process, the data relationship can be changed by changing the relative position relationship parameter and the function mapping relationship parameter in the setting module 21, so that the test scenarios can be further enriched to further improve the test coverage of the video test data, which will be further described in detail with reference to specific examples hereinafter.
Fig. 3 illustrates a video data test system according to another embodiment of the present invention, and as shown in fig. 3, the video source module 22 may include a test data generation unit 221 and an image generation unit 222, and the display module 23 may include a video transmission interface 231 and a verification unit 232. In the video data testing system shown in fig. 3, the test data generating unit 221 is configured to randomly generate a plurality of first test data segments, and generate corresponding second test data segments from the first test data segments according to a data relationship, where the plurality of first test data segments and the plurality of second test data segments jointly form video test data; the image generating unit 222 is configured to receive the video test data generated by the test data generating unit 221, and package the video test data according to the video format and the interface protocol requirement to generate a video code stream. The video transmission interface 231 is configured to receive the video code stream sent by the image generation unit 222, and perform unpacking and decoding to recover the video code stream into video test data; the verification unit 232 is configured to verify the first test data segment and the corresponding second test data segment in the recovered video test data according to the data relationship, and send a verification result to the setting module. In the video testing process, if the video transmission interface 231 is out of order, the recovered video test data may be different from the video test data generated by the test data generating unit 221, that is, the first test data segment and the second test data segment in the recovered video test data may not conform to the data relationship; when the video transmission interface 231 is in a normal function, the recovered video test data is completely the same as the video test data generated by the test data generation unit 221, that is, the first test data segment and the second test data segment in the recovered video test data completely conform to the data relationship. When the verification unit 232 verifies the first test data segment and the corresponding second test data segment in the recovered video test data according to the data relationship, if the first test data segment and the second test data segment which do not conform to the data relationship are verified, the video transmission interface 231 is indicated to be abnormal in function, so that research and development personnel can adjust the video transmission interface according to the verification result; if it is verified that the first test data segment and the corresponding second test data segment in the recovered video test data completely conform to the data relationship, it is indicated that the video transmission interface 231 functions normally.
Fig. 4 illustrates a video data testing system according to still another embodiment of the present invention, which is different from the embodiment illustrated in fig. 3 in that, in the video data testing system illustrated in fig. 4, a test data generating unit may include a random number sub-unit 2211, a first operation sub-unit 2212, and a first position sub-unit 2213. The random number subunit 2211 is configured to randomly generate a plurality of first test data segments, where each first test data segment includes a multi-bit random number; the first operation subunit 2212 is configured to perform, according to the function mapping relationship, a function operation on the multi-bit random numbers in each first test data segment to obtain a corresponding second test data segment; the first position sub-unit 2213 is configured to determine, according to the relative position relationship, the position of each second test data segment in the video test data relative to the corresponding first test data segment, so as to form the video test data. Accordingly, in the video data testing system shown in fig. 4, the verification unit includes a second location subunit 2321, a second operation subunit 2322 and a judgment subunit 2323. The second position subunit 2321 is configured to determine, according to the relative position relationship, each first test data segment and a corresponding second test data segment in the recovered video test data; the second operation subunit 2322 is configured to perform function operation on each first test data segment and the corresponding second test data segment according to a function mapping relationship in the data relationship; the determining subunit 2323 is configured to determine whether an error exists in the video transmission interface according to the operation result of the second operation subunit. In an alternative embodiment, the first operation subunit 2212 performs a bitwise logical operation on the multi-bit random numbers in the respective first test data segments to obtain corresponding second test data segments; accordingly, the second operation subunit 2322 performs a logical operation on each first test data segment and the corresponding second test data segment bit by bit, respectively.
The video data testing system according to the embodiment of the present invention will be described in detail with reference to specific examples. Fig. 5 is a schematic diagram of video test data of a video data test system according to an embodiment of the present invention, a video source module 22 may generate one frame of image data in a video code stream according to the video test data, and a plurality of the video test data may constitute multiple frames of image data, so as to form the video code stream, fig. 5 only exemplarily shows one frame of image data in the video code stream, and the frame of image data may include M rows and N columns of pixel data, and a total of M × N pixel data, and a person skilled in the art may set the number of pixels included in the frame of image data according to an actual situation of the test. In the example of fig. 5, the relative positional relationship between each first test data segment and the corresponding second test data segment is a neighborhood relationship, and the functional mapping relationship between each first test data segment and the corresponding second test data segment is an inversion relationship. In the example of fig. 5, the random number subunit 2211 generates a first test data segment 1, where the first test data segment 1 may include a random number of a corresponding bit width of k pixel values, and a row of pixel data includes 2N data segments, i.e., a row of pixel data includes 2n × k pixel data, i.e., N =2n × k, and a person skilled in the art may set the number of pixels included in a row of pixel data by setting the values of N and k. After the random number subunit 2211 generates the first test data segment 1, the first operation subunit 2212 bit-wise inverts the random number with the corresponding bit width of the k pixel values to obtain a second test data segment 1, and the first position subunit 2213 places the second test data segment 1 next to the first test data segment 1, so as to obtain the second test data segment 1 corresponding to the first test data segment 1. Similarly, the test data generating unit 221 continues to generate the first test data segment 2 and the corresponding second test data segment 2 until the first test data segment n and the corresponding second test data segment n, so as to obtain a line of pixel data. The test data generation unit 221 may obtain pixel data of other rows in turn, thereby obtaining the image data frame. Further, the test data generating unit 221 repeats the above process for other frame image data until the required test amount of video test data is reached, and the image generating unit 222 generates a video code stream accordingly. It should be noted that, in order to improve the generation efficiency of the video test data, the test data generating unit 221 may generate a plurality of first test data segments in parallel, and perform parallel operation to obtain a plurality of corresponding second test data segments, so that the video test data may be generated quickly and uninterruptedly, the video transmission interface 231 of the display module 23 may also receive the video stream sent by the video source 22 uninterruptedly, and recover the video test data uninterruptedly, and the verification on the recovered video test data may also be performed in parallel, so as to improve the test efficiency.
Specifically, the video transmission interface 231 receives the video code stream and restores the video code stream into video test data, and still taking fig. 5 as an example, the second position subunit 2321 obtains the relative position relationship from the setting module 21, so as to determine each first test data segment and the corresponding second test data segment in the restored video test data according to the relative position relationship, that is, the first test data segment 1 and the corresponding second test data segment 1, the first test data segment 2 and the corresponding second test data segment 2, the … … first test data segment n and the corresponding second test data segment n, and so on. The second operation subunit 2322 may obtain the function mapping relationship from the setting module 21, so as to perform logical operation on each first test data segment and the corresponding second test data segment according to the function mapping relationship. Assuming that a first test data segment 1 randomly generated by the test data generation unit 221 is 10, a second test data segment 1 obtained by bitwise inversion is 01, if the video transmission interface 231 functions normally, the received first test data segment 1 is still 10, the received second test data segment 1 is still 01, and the second operator unit 2322 performs bitwise xor operation on the received first test data segment 1 and the received second test data segment 1 according to the inversion relation, since 1 ^ 0=1 and 0 ^ 1=1, it can be known that if the result of bitwise xor operation is 1, it indicates that the video transmission interface 231 functions normally; if there is 0 in the result of the bitwise xor operation, it indicates that the video transmission interface 231 is out of function.
In order to further improve the verification efficiency, as shown in fig. 6, the logic circuit of the second operation subunit 2322 may be configured to perform an exclusive or operation on the received corresponding first test data segment and second test data segment, and then perform an and operation on each bit obtained by the exclusive or operation, for each pair of test data segments, the second operation subunit 2322 only outputs 1-bit data, and it is determined whether the pair of test data segments passes the verification by receiving 0 or 1 by the determination subunit 2323, that is, when receiving 1, the pair of test data segments passes the verification, when receiving 0, the pair of test data segments fails the verification, that is, the video transmission interface 231 is abnormal in function, and reports the verification result to the setting module 21.
Fig. 7 is a schematic diagram of another video test data of a video data test system according to an embodiment of the present invention, in which a first test data segment and a corresponding second test data segment are not in the same row, and the first test data segment and the corresponding second test data segment are in corresponding positions of adjacent rows. The test data generating unit 221 can generate corresponding video test data according to the relative position relationship, and similarly, the verifying unit 232 can determine the first test data segment and the corresponding second test data segment in the recovered video test data according to the relative position relationship. The video test data in fig. 5 and fig. 7 are only examples, and are not intended to limit the present invention, and a person skilled in the art may arbitrarily set the relative position relationship between the corresponding first test data segment and the second test data segment in the data relationship. Similarly, the functional mapping relationship between the first test data segment and the second test data segment is not limited to the inverse relationship, and the first test data segment and the second test data segment may also be a copy relationship, a reverse order relationship, a cyclic shift relationship, an adjacent bit addition or multiplication relationship, or any other functional mapping relationship.
It will also be appreciated by those skilled in the art that the first test data segment may or may not be the same length as the corresponding second test data segment. For example, the first test data segment is a [ k:1], the second test data segment may be B [ 2k. The first functional mapping relation and the second functional mapping relation may be the same or different, and may be selected from the above-mentioned duplication relation, reverse order relation, cyclic shift relation, adjacent bit addition or multiplication relation, and so on.
Correspondingly, an embodiment of the present invention further provides a video data testing method, as shown in fig. 8, the video data testing method may include:
s31, randomly generating video test data according to the data relationship, where the video test data includes multiple test data segments, and the test data segments have the data relationship, and the specific content may refer to the related description of the test data generating unit 221 above.
And S32, generating a video code stream according to the video test data, wherein specific contents can refer to the related description of the image generating unit 222.
And S33, receiving the video code stream by using the video transmission interface, and recovering the received video code stream into video test data, wherein the specific content can refer to the related description of the video transmission interface 231.
And S34, verifying the recovered video test data according to the data relationship, wherein the specific content can refer to the related description of the video transmission interface 232.
In the video data testing method provided by the embodiment of the invention, because the video testing data is randomly generated according to a certain data relation, the testing coverage rate can be improved, the randomly generated data and the received data can be verified through a preset function operation algorithm according to the data relation, a large-capacity storage is not needed for storing the original video data, the testing cost can be reduced, the testing process is simple, and the testing efficiency can be improved.
Fig. 9 illustrates a video data testing method according to another embodiment of the present invention, and as shown in fig. 9, the video data testing method may include:
s41, randomly generating a plurality of first test data segments, which may refer to the above description of the random number subunit 2211.
S42, according to the function mapping relationship in the data relationship, respectively perform function operation on each first test data segment to obtain a corresponding second test data segment, and the specific content may refer to the related description of the first operation subunit 2212.
S43, according to the relative position relationship in the data relationship, respectively determining the position of each second test data segment in the video test data relative to the corresponding first test data segment to form the video test data, where the specific content may refer to the above description of the first position subunit 2213.
And S44, generating a video code stream according to the video test data, wherein specific contents can refer to the related description of the image generating unit 222.
And S45, receiving the video code stream by using the video transmission interface, and recovering the received video code stream into video test data, wherein the specific content can refer to the related description of the video transmission interface 231.
S46, according to the relative position relationship, determining each first test data segment and the corresponding second test data segment in the recovered video test data, where the specific content may refer to the above-mentioned related description of the second position subunit 2321.
And S47, according to the function mapping relationship, performing function operation on each first test data segment and the corresponding second test data segment, wherein specific contents may refer to the above-mentioned related description of the second operation subunit 2322.
S48, according to the operation result of the function operation, determine whether the function of the video transmission interface is normal, and refer to the above description of the determining subunit 2323 for specific content.
The video data testing system and the video data testing method can be suitable for testing the video transmission interface of the micro display chip. Accordingly, the embodiment of the present invention further provides an application of the video data testing system or the video data testing method described above in testing a video transmission interface of a micro display chip.
The specific details of the application of the video data testing system or the video data testing method in the video transmission interface test of the micro display chip can be understood by referring to the corresponding related descriptions and effects in the embodiments shown in fig. 2 to 9, which are not described herein again.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A video data testing system, comprising:
the setting module is used for providing data relation;
the video source module is electrically connected with the setting module and is used for randomly generating video test data according to the data relation and generating a video code stream according to the video test data, the video test data comprises a plurality of test data fragments, and the test data fragments have the data relation;
the display module is electrically connected with the video source module and provided with a video transmission interface for receiving the video code stream from the video source module through the video transmission interface and recovering the received video code stream into video test data, and the display module is also used for receiving the data relation from the setting module, verifying the recovered video test data according to the data relation and sending a verification result to the setting module.
2. The video data testing system according to claim 1, wherein the video test data is composed of a plurality of first test data segments and a corresponding plurality of second test data segments, each of the first test data segments is a randomly generated multi-bit random number, and each of the second test data segments has the data relationship with the corresponding first test data segment;
the data relationship comprises a relative position relationship and a function mapping relationship between the first test data segment and the corresponding second test data segment.
3. The video data testing system of claim 2, wherein the video source module comprises:
the test data generating unit is used for randomly generating a plurality of first test data fragments and respectively generating corresponding second test data fragments from the first test data fragments according to the data relationship;
and the image generation unit is used for packing the video test data according to the requirements of video formats and interface protocols to generate the video code stream.
4. The video data test system according to claim 3, wherein the test data generation unit includes:
a random number subunit for randomly generating a plurality of first test data segments, each of the first test data segments including a multi-bit random number;
the first operation subunit is configured to perform, according to the function mapping relationship, function operation on the multi-bit random numbers in the first test data segments respectively to obtain corresponding second test data segments;
and the first position subunit is configured to determine, according to the relative position relationship, a position of each second test data segment in the video test data relative to the corresponding first test data segment, so as to form the video test data.
5. The video data testing system of claim 3 or 4, wherein the display module comprises:
the video transmission interface is used for receiving the video code stream and performing unpacking and decoding to recover the video code stream into video test data;
and the verification unit is used for verifying the first test data segment and the corresponding second test data segment in the recovered video test data according to the data relationship and sending a verification result to the setting module.
6. The video data testing system of claim 5, wherein the verification unit comprises:
a second position subunit, configured to determine, according to the relative position relationship, each first test data segment and the corresponding second test data segment in the recovered video test data;
the second operation subunit is configured to perform function operation on each first test data segment and the corresponding second test data segment according to a function mapping relationship in the data relationship;
and the judging subunit is used for judging whether the video transmission interface has errors or not according to the operation result of the second operation subunit.
7. A method for video data testing, comprising:
randomly generating video test data according to a data relation, wherein the video test data comprises a plurality of test data fragments, and the data relation is formed among the test data fragments;
generating a video code stream according to the video test data;
receiving the video code stream by using a video transmission interface, and recovering the received video code stream into video test data;
and verifying the recovered video test data according to the data relation.
8. The method of claim 7, wherein randomly generating video test data according to the data relationship comprises:
randomly generating a plurality of first test data segments;
according to a function mapping relation in the data relation, performing function operation on each first test data segment respectively to obtain a corresponding second test data segment;
and respectively determining the position of each second test data segment in the video test data relative to the corresponding first test data segment according to the relative position relationship in the data relationship so as to form the video test data.
9. The method according to claim 8, wherein the verifying the recovered video test data according to the data relationship comprises:
determining each first test data segment and the corresponding second test data segment in the recovered video test data according to the relative position relationship;
according to the function mapping relation, performing function operation on each first test data segment and the corresponding second test data segment respectively;
and judging whether the function of the video transmission interface is normal or not according to the operation result of the function operation.
10. Use of a video data testing system according to any of claims 1-6 or a video data testing method according to any of claims 7-9 for testing a video transmission interface of a micro-display chip.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5274446A (en) * | 1991-06-27 | 1993-12-28 | Mitsubishi Denki Kabushiki Kaisha | Image transmission apparatus with diagnostic processing means |
| CN1586083A (en) * | 2001-11-09 | 2005-02-23 | 松下电器产业株式会社 | Display device, receiver, and test apparatus |
| TW200904148A (en) * | 2007-03-19 | 2009-01-16 | Ati Technologies Ulc | Automated compliance testing for video devices |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269482B1 (en) * | 1997-07-14 | 2001-07-31 | Altinex, Inc. | Methods of testing electrical signals and compensating for degradation |
| DE112019000504T5 (en) * | 2018-01-24 | 2020-10-08 | Rohm Co., Ltd. | SEMICONDUCTOR DEVICE, DISPLAY DEVICE, GRAPHICS PROCESSOR AND ELECTRONIC DEVICE |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5274446A (en) * | 1991-06-27 | 1993-12-28 | Mitsubishi Denki Kabushiki Kaisha | Image transmission apparatus with diagnostic processing means |
| CN1586083A (en) * | 2001-11-09 | 2005-02-23 | 松下电器产业株式会社 | Display device, receiver, and test apparatus |
| TW200904148A (en) * | 2007-03-19 | 2009-01-16 | Ati Technologies Ulc | Automated compliance testing for video devices |
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