CN109547796B - Video coding and decoding firmware management method and system - Google Patents
Video coding and decoding firmware management method and system Download PDFInfo
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- CN109547796B CN109547796B CN201811431376.2A CN201811431376A CN109547796B CN 109547796 B CN109547796 B CN 109547796B CN 201811431376 A CN201811431376 A CN 201811431376A CN 109547796 B CN109547796 B CN 109547796B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
Abstract
The invention provides a video coding and decoding firmware management method and a system, wherein the method comprises the following steps: step S1, acquiring source files regarding a plurality of pieces of hardware; step S2, processing the source file to generate a firmware package associated with the digital signature; step S3, judging whether the digital signature corresponding to the firmware package is valid; if yes, performing data preloading on the firmware package to obtain firmware data corresponding to each hardware, and then executing step S4; if not, discarding the firmware package and returning to the step S1; step S4, filtering each firmware data to obtain available firmware data; in step S5, the corresponding hardware is driven according to each available firmware data, and then the process returns to step S1. The invention has the beneficial effects that: the method effectively performs centralized management and flexible control on the scattered firmware data, further improves the use efficiency on time and space, enhances the reliability and confidentiality of the firmware data and realizes simple and easy operability of video coding and decoding firmware management.
Description
Technical Field
The invention relates to the field of video coding and decoding, in particular to a method and a system for managing video coding and decoding firmware.
Background
With the progress of the technology level, because the information carried by high-quality video materials is huge, how to perform better processing on the video information becomes more and more important, and the encoding and decoding are performed in a pure software form at present, but the technical scheme hardly has ideal utility, so the technical scheme can only be used as theoretical reference and guidance.
Because the computing efficiency of the hardware coding and decoding functions in the prior art is far higher than that of software, the adoption of hardware to process a large amount of complex and time-consuming operations is a better technical scheme at present, but because the firmware data of each coding and decoding format has great difference, how to realize the high-efficiency operation of the driving hardware and the simplicity and the easiness in use become a new problem.
The method of video preloading cache firmware is adopted in the prior art at present, and firmware information is compiled into a kernel in a static array form, and the method adopting static integration can improve the loading use efficiency, but can greatly increase the size of a kernel image file and can cause the risk of data tampering, damage and leakage.
Disclosure of Invention
Aiming at the problems in the prior art, a video coding and decoding firmware management method and a video coding and decoding firmware management system are provided, which aim to effectively perform centralized management and flexible control on scattered firmware data, further improve the use efficiency on time and space, enhance the reliability and confidentiality of the firmware data and realize the simple and easy operability of video coding and decoding firmware management.
The specific technical scheme is as follows:
a video coding and decoding firmware management method comprises the following steps:
step S1, acquiring source files regarding a plurality of pieces of hardware;
step S2, processing the source file to generate a firmware package associated with the digital signature;
step S3, judging whether the digital signature corresponding to the firmware package is valid;
if yes, performing data preloading on the firmware package to obtain firmware data corresponding to each hardware, and then executing step S4;
if not, discarding the firmware package and returning to the step S1;
step S4, filtering each firmware data to obtain available firmware data;
in step S5, the corresponding hardware is driven according to each available firmware data, and then the process returns to step S1.
Preferably, the video codec firmware management method, wherein the step S2 specifically includes the following steps:
step S21, compiling the source file to obtain a compiled file;
step S22, encrypting the compiled file to obtain an encrypted file;
step S23, data compression is carried out on the encrypted file to obtain a compressed file;
in step S24, the compressed file is digitally signed to obtain a firmware package associated with the digital signature.
Preferably, the video codec firmware management method, wherein step S21 specifically includes: and carrying out binary compilation on the source file to obtain a compiled file.
Preferably, the video codec firmware management method, wherein the step S3 specifically includes the following steps:
step S31, judging whether the digital signature corresponding to the firmware package is valid;
if yes, go to step S32;
step S32, decompressing the firmware package to obtain a decompressed file;
step S33, the decompressed file is analyzed to obtain an analyzed file;
step S34, decrypting the analysis file to obtain a decrypted file;
step S35, pre-loading data of the decrypted file to obtain firmware data;
in step S36, the firmware data is stored.
Preferably, in the video codec firmware management method, if the digital signature corresponding to the firmware package is valid in step S31, the firmware package is discarded, and then the process returns to step S1
The video coding and decoding firmware management system is further included, and comprises:
the firmware packaging module is used for processing source files of a plurality of hardware to generate a firmware package related to the digital signature;
the firmware preloading module is connected with the firmware packaging module, performs data preloading on the firmware package and obtains firmware data corresponding to each hardware;
the filtering module is connected with the firmware preloading module and is used for filtering each firmware data to obtain available firmware data;
and the hardware module is connected with the filtering module and drives corresponding hardware according to each available firmware data.
Preferably, the video coding and decoding firmware management system, wherein the firmware package comprises a digital signature part and a firmware data part, and the digital signature part and the firmware data part are arranged in a one-to-one correspondence manner;
the digital signature part is used for storing a digital signature;
the firmware data portion is used for storing firmware data.
Preferably, the video codec firmware management system, wherein the firmware packaging module includes:
a compiling unit: compiling a source file to obtain a compiled file;
the encryption unit is connected with the compiling unit and used for encrypting the compiled file to obtain an encrypted file;
the compression unit is connected with the encryption unit and used for carrying out data compression on the encrypted file to obtain a compressed file;
and the processing unit is connected with the compression unit and is used for carrying out digital signature processing on the compressed file to obtain a firmware package associated with the digital signature.
Preferably, the video codec firmware management system, wherein the firmware preloading module includes:
the judging unit is used for carrying out signature authentication on the digital signature corresponding to the firmware package;
the decompression unit is connected with the judgment unit and used for decompressing the data of the firmware package passing the signature authentication to obtain a decompressed file;
the analysis unit is connected with the decompression unit and used for analyzing the decompressed file to obtain an analysis file;
the decryption unit is connected with the analysis unit and used for decrypting the analysis file to obtain a decrypted file;
the preloading unit is connected with the analysis unit and used for preloading data of the decrypted file to obtain firmware data;
and the storage unit is connected with the preloading unit and used for storing the firmware data.
Preferably, in the video codec firmware management system, the firmware preloading module further includes a deleting unit, the deleting unit is connected to the judging unit, and when the judging unit signs and authenticates the digital signature corresponding to the firmware package as invalid, the deleting unit is configured to delete the firmware package.
The technical scheme has the following advantages or beneficial effects: the firmware data corresponding to a plurality of hardware is integrated into the corresponding firmware package, so that the centralized management and flexible control of the scattered firmware data are effectively realized, the space-time use efficiency is improved, and the reliability and confidentiality of the firmware data are enhanced by processing the source file to generate the firmware package; and further, the simple and easy operability of the video coding and decoding firmware management is realized.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the invention.
FIG. 1 is a flowchart illustrating a method for managing video codec firmware according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating the step S2 of the video codec firmware management method according to the embodiment of the present invention;
FIG. 3 is a flowchart illustrating the step S3 of the video codec firmware management method according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a video codec firmware management system according to an embodiment of the present invention;
FIG. 5 is a block diagram of a firmware packaging module according to an embodiment of the video codec firmware management system of the present invention;
FIG. 6 is a block diagram of a firmware preloading module according to an embodiment of the video codec firmware management system of the present invention.
Reference numerals: 1. the device comprises a firmware packaging module 11, a compiling unit 12, an encrypting unit 13, a compressing unit 14, a processing unit 2, a firmware preloading module 21, a judging unit 22, a decompressing unit 23, a parsing unit 24, a decrypting unit 25, a preloading unit 26, a storing unit 27, a deleting unit 3, a filtering module 4 and a hardware module.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the 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 invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The invention includes a video encoding and decoding firmware management method, as shown in fig. 1, comprising the following steps:
step S1, acquiring source files regarding a plurality of pieces of hardware;
step S2, processing the source file to generate a firmware package associated with the digital signature;
step S3, judging whether the digital signature corresponding to the firmware package is valid;
if yes, performing data preloading on the firmware package to obtain firmware data corresponding to each hardware, and then executing step S4;
if not, discarding the firmware package and returning to the step S1;
step S4, filtering each firmware data to obtain available firmware data;
in step S5, the corresponding hardware is driven according to each available firmware data, and then the process returns to step S1.
In the embodiment, the firmware packages associated with the digital signatures are obtained by performing a series of processing on the source files of the plurality of hardware, that is, the firmware data corresponding to the plurality of hardware is integrated into one corresponding firmware package, so that the centralized management and flexible control on the dispersed firmware data are effectively realized, and the space-time use efficiency is improved; secondly, data preloading and analyzing are carried out on the firmware package to obtain firmware data corresponding to a plurality of hardware, then each firmware data is filtered to obtain available firmware data, and corresponding hardware is driven according to each available firmware data, so that the accuracy of the video coding and decoding firmware is improved.
Further, in the above embodiment, as shown in fig. 2, step S2 specifically includes the following steps:
step S21, compiling the source file to obtain a compiled file;
step S22, encrypting the compiled file to obtain an encrypted file;
step S23, data compression is carried out on the encrypted file to obtain a compressed file;
in step S24, the compressed file is digitally signed to obtain a firmware package associated with the digital signature.
In the embodiment, the source file is compiled into the compiled file, so that the high-level language source program is translated into the target program, and the reliability of the file is improved.
In the embodiment, the compiled file is encrypted to form the encrypted file, so that the high-level language source program is translated into the target program, and the confidentiality of the file is improved.
In the embodiment, the encrypted file is compressed into the compressed file through data compression, so that the large-capacity encrypted file is converted into the small-capacity compressed file, the capacity of the firmware package is further reduced, and data transmission is facilitated.
In the above embodiment, the compressed file is digitally signed to verify when the corresponding firmware package is read, so as to enhance the reliability and confidentiality of the firmware data.
In the above embodiment, the source file is compiled, encrypted, compressed and digitally signed in sequence to obtain the firmware package associated with the digital signature, so as to enhance the reliability and confidentiality of the firmware data.
Further, in the above embodiment, step S21 specifically includes: and carrying out binary compilation on the source file to obtain a compiled file. Thereby removing data redundancy and reducing the space capacity occupied by the firmware package.
Further, in the above embodiment, as shown in fig. 3, step S3 specifically includes the following steps:
step S31, judging whether the digital signature corresponding to the firmware package is valid;
if yes, go to step S32;
if not, discarding the firmware package, and then returning to step S1;
step S32, decompressing the firmware package to obtain a decompressed file;
step S33, the decompressed file is analyzed to obtain an analyzed file;
step S34, decrypting the analysis file to obtain a decrypted file;
step S35, pre-loading data of the decrypted file to obtain firmware data;
in step S36, the firmware data is stored.
In the above embodiment, the firmware package is sequentially subjected to determining the validity of the digital signature (i.e. signature authentication), decompressing, parsing and decrypting to obtain the corresponding firmware data, and the step S3 is just the reverse scheme of the step S2, so that the simplicity and easy operability of the management of the video decoding firmware can be improved.
Also included is a video codec firmware management system, as shown in fig. 4, including:
the firmware packaging module 1 is used for processing source files of a plurality of hardware to generate a firmware package associated with a digital signature;
the firmware preloading module 2 is connected with the firmware packaging module 1, performs data preloading on the firmware package and obtains firmware data corresponding to each hardware;
the filtering module 3 is connected with the firmware preloading module 2 and is used for filtering each firmware data to obtain available firmware data;
and the hardware module 4 is connected with the filtering module 3 and drives corresponding hardware according to each available firmware data.
In the embodiment, the firmware data corresponding to a plurality of hardware is integrated into one corresponding firmware packet, so that the centralized management and flexible control of the scattered firmware data are effectively realized, and the space-time use efficiency is improved; and secondly, performing data preloading analysis on the firmware package to obtain firmware data corresponding to a plurality of hardware, then filtering each firmware data to obtain available firmware data, and driving the corresponding hardware according to each available firmware data, so that the simplicity and the easiness in operability of video coding and decoding firmware management can be improved.
Further, in the above-described embodiment, the firmware package includes the digital signature part and the firmware data part, and the digital signature part and the firmware data part are provided in one-to-one correspondence;
the digital signature part is used for storing a digital signature;
the firmware data portion is used for storing firmware data.
Therefore, whether the firmware data stored in the firmware data part corresponding to the digital signature is discarded or not is selected by judging the validity of the digital signature, and the accuracy of the video coding and decoding firmware is improved.
Further, in the above-described embodiment, as shown in fig. 5, the firmware packaging module 1 includes:
the compiling unit 11: compiling a source file to obtain a compiled file;
the encryption unit 12 is connected with the compiling unit 11 and used for encrypting the compiled file to obtain an encrypted file;
the compression unit 13 is connected with the encryption unit 12 and used for performing data compression on the encrypted file to obtain a compressed file;
and the processing unit 14 is connected with the compression unit 13 and is used for performing digital signature processing on the compressed file to obtain a firmware package associated with the digital signature.
Further, in the above-described embodiment, as shown in fig. 6, the firmware preloading module 2 includes:
the judging unit 21 is used for performing signature authentication on the digital signature corresponding to the firmware package;
the decompression unit 22 is connected with the judgment unit 21 and is used for decompressing the data of the firmware package passing the signature authentication to obtain a decompressed file;
the analysis unit 23 is connected with the decompression unit 22 and is used for analyzing the decompressed file to obtain an analysis file;
the decryption unit 24 is connected with the analysis unit 23 and is used for decrypting the analysis file to obtain a decrypted file;
the preloading unit 25 is connected with the analyzing unit 23 and is used for preloading data of the decrypted file to obtain firmware data;
and a storage unit 26 connected to the preloading unit 25 for storing the firmware data. This allows the hardware to be driven directly by the cached firmware data.
Further, in the above embodiment, the firmware preloading module 2 further includes a deleting unit 27, where the deleting unit 27 is connected to the judging unit 21, and when the judging unit 21 verifies that the signature of the digital signature corresponding to the firmware package is invalid, the deleting unit 27 is configured to delete the firmware package.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A video coding and decoding firmware management method is characterized by comprising the following steps:
step S1, acquiring source files regarding a plurality of pieces of hardware;
step S2, processing the source file to generate a firmware package associated with a digital signature;
step S3, determining whether the digital signature corresponding to the firmware package is valid;
if yes, performing data preloading on the firmware package to obtain firmware data corresponding to each piece of hardware, and then executing step S4;
if not, discarding the firmware package, and returning to the step S1;
step S4, filtering each firmware data to obtain available firmware data;
step S5, driving the corresponding hardware according to each of the available firmware data, and then returning to step S1.
2. The method for managing video codec firmware of claim 1, wherein the step S2 specifically includes the following steps:
step S21, compiling the source file to obtain a compiled file;
step S22, encrypting the compiled file to obtain an encrypted file;
step S23, data compression is carried out on the encrypted file to obtain a compressed file;
step S24, performing digital signature processing on the compressed file to obtain the firmware package associated with the digital signature.
3. The method for managing video codec firmware of claim 2, wherein the step S21 specifically includes: and carrying out binary compilation on the source file to obtain the compiled file.
4. The method for managing video codec firmware of claim 1, wherein the step S3 specifically includes the following steps:
step S31, determining whether the digital signature corresponding to the firmware package is valid;
if yes, go to step S32;
step S32, carrying out data decompression on the firmware package to obtain a decompressed file;
step S33, analyzing the decompressed file to obtain an analyzed file;
step S34, decrypting the analysis file to obtain a decrypted file;
step S35, pre-loading data of the decrypted file to obtain the firmware data;
step S36, storing the firmware data.
5. The method as claimed in claim 4, wherein in step S31, if the digital signature corresponding to the firmware package is invalid, the firmware package is discarded, and then the method returns to step S1.
6. A video codec firmware management system, comprising:
the firmware packaging module is used for processing source files of a plurality of hardware to generate a firmware package related to the digital signature;
the firmware preloading module is connected with the firmware packaging module, performs data preloading on the firmware package and obtains firmware data corresponding to each piece of hardware;
the filtering module is connected with the firmware preloading module and is used for filtering each firmware data to obtain available firmware data;
and the hardware module is connected with the filtering module and drives the corresponding hardware according to each available firmware data.
7. The video codec firmware management system of claim 6, wherein the firmware package includes a digital signature part and a firmware data part, the digital signature part and the firmware data part being arranged in one-to-one correspondence;
the digital signature part is used for storing the digital signature;
the firmware data portion is used for storing the firmware data.
8. The video codec firmware management system of claim 6, wherein the firmware packaging module comprises:
a compiling unit: compiling the source file to obtain a compiled file;
the encryption unit is connected with the compiling unit and used for encrypting the compiled file to obtain an encrypted file;
the compression unit is connected with the encryption unit and used for carrying out data compression on the encrypted file to obtain a compressed file;
and the processing unit is connected with the compression unit and used for carrying out digital signature processing on the compressed file so as to obtain the firmware package associated with the digital signature.
9. The video codec firmware management system of claim 6, wherein the firmware preloading module comprises:
the judging unit is used for carrying out signature authentication on the digital signature corresponding to the firmware package;
the decompression unit is connected with the judgment unit and used for decompressing the firmware package passing the signature authentication to obtain a decompressed file;
the analysis unit is connected with the decompression unit and used for analyzing the decompressed file to obtain an analysis file;
the decryption unit is connected with the analysis unit and is used for decrypting the analysis file to obtain a decrypted file;
the preloading unit is connected with the analysis unit and used for preloading data of the decrypted file to obtain the firmware data;
and the storage unit is connected with the preloading unit and used for storing the firmware data.
10. The video codec firmware management system according to claim 9, wherein the firmware preloading module further includes a deleting unit, the deleting unit is connected to the judging unit, and the deleting unit is configured to delete the firmware package when the judging unit signs and authenticates the digital signature corresponding to the firmware package as invalid.
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