Decoding method for identifying multimedia videos and audios

Abstract

The invention relates to the technical field of audio decoding, and discloses a decoding method for identifying multimedia video and audio, which comprises the following steps of: 1, an installation and configuration step: providing a compression package containing an ffmpeg tool, decompressing and configuring an environment variable by a user, and ensuring that the ffmpeg can be directly called in a command line; step 2, a file input step: a user inputs a video or audio file path to be identified through a command line, and the format is an ffmpeg-i file path; and step 3, executing an identification step, automatically analyzing and displaying detailed coding information of the file by an ffmpeg tool according to an input file path, including a video coding format, an audio coding format, a resolution ratio and a frame rate. The invention provides a decoding method for identifying multimedia videos and audios, and solves the problem of low bug submission accuracy caused by lack of effective tools for identifying video and audio decoding formats by testers.

Description

Technical Field

[0001] The present invention relates to the technical field of audio decoding, and in particular to a method for identifying multimedia video audio decoding. Background Art

[0002] With the rapid development of multimedia technology, video and audio data are increasingly used in various devices, especially in vehicle-mounted devices. However, during the project development process, due to the diversity and complexity of video and audio decoding formats, communication barriers often arise between testers and R&D personnel due to unclear decoding format recognition. At present, although the widely used CoreChi multimedia chip in the market has provided a set of audio and video decoding support format tables, most testers find it difficult to accurately distinguish different video and audio decoding formats; The problems existing in the prior art mainly include: 1. Testers lack effective tools to identify video and audio decoding formats, resulting in low accuracy in reporting bugs; 2. It is difficult for R&D personnel to quickly determine whether the video and audio files provided by the test are compatible with the CoreChips, which increases the time cost of troubleshooting and solving problems; 3. The lack of efficient information sharing mechanism between testing and R&D affects the overall progress of the project.

[0003] In order to solve the above problems, this application proposes a method for identifying multimedia video and audio decoding. Summary of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a method for identifying multimedia video and audio decoding.

[0005] The present invention provides a method for identifying multimedia video and audio decoding, comprising the following steps: Step 1: Installation and configuration steps. Provide a compressed package containing the ffmpeg tool. Users need to decompress it and configure environment variables to ensure that ffmpeg can be called directly in the command line. Step 2: Input file step, the user enters the video or audio file path to be identified through the command line, the format is ffmpeg -i file path; Step 3: Execute the recognition step. The ffmpeg tool automatically parses and displays the detailed encoding information of the file according to the input file path, including video encoding format, audio encoding format, resolution, and frame rate; Step 4: Display the result step, and display the encoding information parsed by ffmpeg to the user in a clear and easy-to-read way; Step 5: Compatibility check step, compare the parsed encoding information with the decoding format table supported by the CoreChi multimedia chip, and automatically determine whether the file is compatible with the CoreChi chip; Step 6: Output report step, generate a report containing recognition results and compatibility judgment for reference by testers and R&D personnel.

[0006] Preferably, the installation and configuration step includes: S1. Provide compressed package: a1. The development team or support department prepares a compressed package containing the ffmpeg tool. The compressed package should contain the executable file of ffmpeg. There may be different versions for different operating systems, such as Windows exe files, Linux binary files and necessary library files; a2. Make sure the compressed package contains a user manual document that details how to configure environment variables after decompression; S2. Decompress the compressed package: the user downloads and decompresses the compressed package to a specified directory, such as C:ffmpeg / Windows or / usr / local / ffmpeg / Linux; S3. Configure environment variables: a1. For Windows systems, users need to edit the Path variable in System Properties > Advanced > Environment Variables and add the bin directory path of ffmpeg; a2. For Linux or macOS systems, users need to edit their shell configuration files, such as bashrc, bash_profile, or zshrc, add the ffmpeg bin directory to the PATH environment variable, and execute the source command to make the configuration effective; S4. Verify the installation: Open the command line tool and enter ffmpeg -version. If the ffmpeg version information is displayed correctly, it means that the installation and configuration are successful.

[0007] Preferably, the input file step includes: S1. Prepare files: The user ensures that the video or audio file to be identified has been stored in the file system and its complete path is known; S2. Input command: The user opens the command line tool and enters ffmpeg -i file path, where file path should be replaced with the actual file path, such as ffmpeg -i C:\videos\test.mp4 / Windows or ffmpeg -i / home / user / videos / test.mp4 / Linux / macOS.

[0008] Preferably, the performing identification step comprises: S1. Start ffmpeg: After entering the command, ffmpeg will start immediately and try to open the specified file; S2. Parsing files: ffmpeg uses the built-in parser to read the file header information and extract the encoding format, resolution, and frame rate details of the video and audio; S3. Display information: ffmpeg outputs the parsed information to the command line interface in text form, including codec name, bit rate, frame rate, and resolution.

[0009] Preferably, the step of displaying the result includes: S1. Format output: Considering the clarity and readability of the information, write a script to parse the output of ffmpeg and present key information such as encoding format and resolution in the form of a table or list; S2. User interface display: For application scenarios that require a graphical user interface, a simple GUI tool is developed that calls the ffmpeg command internally and displays the output results in the GUI interface.

[0010] Preferably, the compatibility checking step includes: S1. Prepare the decoding format table: Make sure you have a decoding format table supported by the CoreChips multimedia chip, which lists in detail all supported codecs, resolutions, and frame rate parameters; S2. Read the decoding format table: In the compatibility checker, read the decoding format table and store it in a data structure that is easy to query, such as a hash table or a database; S3. Compare the parsing results: compare the encoding information parsed by ffmpeg with the entries in the decoding format table to check whether there is a match; S4. Determine compatibility: If a match is found, the file is determined to be compatible with the CoreChips chip. Otherwise, an incompatible prompt message is output.

[0011] Preferably, the output report step includes: S1. Prepare a report template: Design a report template that includes the identification results and compatibility judgment results. The template can be a text file, Excel table or HTML page; S2. Fill in the report content: fill in the corresponding fields in the report template according to the parsing results of ffmpeg and the results of the compatibility check; S3. Save and share the report: Save the generated report to a designated location and provide it to testers and developers for reference. The report can be shared via email, file sharing services, or project management systems.

[0012] The above technical solution of the present invention has the following beneficial technical effects: 1. Ensure the accuracy and consistency of decoding format recognition through standardized ffmpeg tools to reduce human errors; 2. The automated process reduces the communication cost between testing and R&D, enabling R&D personnel to quickly determine the compatibility of test files and shorten problem solving time; 3. Clear and easy-to-read identification results and compatibility reports improve the work experience of testers and R&D personnel and enhance the collaboration efficiency of the project team; 4. This method not only solves practical problems, but also promotes the popularization and sharing of multimedia decoding format knowledge and improves the overall technical level of the team. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention provides a flowchart of a method for identifying multimedia video and audio decoding. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0015] like Figure 1 As shown, a method for identifying multimedia video and audio decoding proposed by the present invention comprises the following steps: Step 1: Installation and configuration steps. Provide a compressed package containing the ffmpeg tool. Users need to decompress it and configure environment variables to ensure that ffmpeg can be called directly in the command line. Step 2: Input file step, the user enters the video or audio file path to be identified through the command line, the format is ffmpeg -i file path; Step 3: Execute the recognition step. The ffmpeg tool automatically parses and displays the detailed encoding information of the file according to the input file path, including video encoding format, audio encoding format, resolution, and frame rate; Step 4: Display the result step, and display the encoding information parsed by ffmpeg to the user in a clear and easy-to-read way; Step 5: Compatibility check step, compare the parsed encoding information with the decoding format table supported by the CoreChi multimedia chip, and automatically determine whether the file is compatible with the CoreChi chip; Step 6: Output report step, generate a report containing recognition results and compatibility judgment for reference by testers and R&D personnel.

[0016] In a specific embodiment, the installation and configuration steps include: S1. Provide compressed package: a1. The development team or support department prepares a compressed package containing the ffmpeg tool. The compressed package should contain the executable file of ffmpeg. There may be different versions for different operating systems, such as Windows exe files, Linux binary files and necessary library files; a2. Make sure the compressed package contains a user manual document that details how to configure environment variables after decompression; S2. Decompress the compressed package: the user downloads and decompresses the compressed package to a specified directory, such as C:ffmpeg / Windows or / usr / local / ffmpeg / Linux; S3. Configure environment variables: a1. For Windows systems, users need to edit the Path variable in System Properties > Advanced > Environment Variables and add the bin directory path of ffmpeg; a2. For Linux or macOS systems, users need to edit their shell configuration files, such as bashrc, bash_profile, or zshrc, add the ffmpeg bin directory to the PATH environment variable, and execute the source command to make the configuration effective; S4. Verify the installation: Open the command line tool and enter ffmpeg -version. If the ffmpeg version information is displayed correctly, it means that the installation and configuration are successful.

[0017] In a specific embodiment, the file input step includes: S1. Prepare files: The user ensures that the video or audio file to be identified has been stored in the file system and its complete path is known; S2. Input command: The user opens the command line tool and enters ffmpeg -i file path, where file path should be replaced with the actual file path, such as ffmpeg -i C:\videos\test.mp4 / Windows or ffmpeg -i / home / user / videos / test.mp4 / Linux / macOS.

[0018] In a specific embodiment, performing the identification step includes: S1. Start ffmpeg: After entering the command, ffmpeg will start immediately and try to open the specified file; S2. Parsing files: ffmpeg uses the built-in parser to read the file header information and extract the encoding format, resolution, and frame rate details of the video and audio; S3. Display information: ffmpeg outputs the parsed information to the command line interface in text form, including codec name, bit rate, frame rate, and resolution.

[0019] In a specific embodiment, the step of displaying the result includes: S1. Format output: Considering the clarity and readability of the information, write a script to parse the output of ffmpeg and present key information such as encoding format and resolution in the form of a table or list; S2. User interface display: For application scenarios that require a graphical user interface, a simple GUI tool is developed that calls the ffmpeg command internally and displays the output results in the GUI interface.

[0020] In a specific embodiment, the compatibility checking step includes: S1. Prepare the decoding format table: Make sure you have a decoding format table supported by the CoreChips multimedia chip, which lists in detail all supported codecs, resolutions, and frame rate parameters; S2. Read the decoding format table: In the compatibility checker, read the decoding format table and store it in a data structure that is easy to query, such as a hash table or a database; S3. Compare the parsing results: compare the encoding information parsed by ffmpeg with the entries in the decoding format table to check whether there is a match; S4. Determine compatibility: If a match is found, the file is determined to be compatible with the CoreChips chip. Otherwise, an incompatible prompt message is output.

[0021] In a specific embodiment, the report output step includes: S1. Prepare a report template: Design a report template that includes the identification results and compatibility judgment results. The template can be a text file, Excel table or HTML page; S2. Fill in the report content: fill in the corresponding fields in the report template according to the parsing results of ffmpeg and the results of the compatibility check; S3. Save and share the report: Save the generated report to a designated location and provide it to testers and developers for reference. The report can be shared via email, file sharing services, or project management systems.

[0022] Principle of this method: First, the user needs to download and install a pre-configured compressed package, which integrates the ffmpeg tool. After the installation is complete, the user needs to add the executable file path of ffmpeg to the system's environment variables to ensure that the ffmpeg command can be directly called in any command line interface. Then, the user enters the full path of the media file to be identified through the command line interface, and uses the ffmpeg -i parameter to specify the input file. After receiving the instruction, ffmpeg will start its powerful media parsing capability, deeply parse the file, extract and display detailed encoding information, including but not limited to video encoding format, audio encoding format, video resolution, frame rate key parameters. After the parsing is completed, ffmpeg will display these The encoding information is directly output to the command line window in an easy-to-understand manner for users to view. Then, the process enters the compatibility check stage, in which the encoding information parsed by ffmpeg is compared one by one with the decoding format table officially supported by the CoreChi multimedia chip. The algorithm logic is used to determine whether the encoding of the file meets the decoding requirements of the CoreChi chip. Finally, based on the recognition results and compatibility judgment, the system automatically generates a detailed report. This report not only contains the encoding information recognition results of the media file, but also clearly points out whether the file is compatible with the CoreChi multimedia chip, providing valuable reference information for testers and R&D personnel. The entire process realizes full automation from file input to compatibility evaluation and report output, improving work efficiency and accuracy.

[0023] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A method for identifying multimedia video and audio decoding, characterized in that: The following steps are involved: Step 1: Installation and configuration steps. Provide a compressed package containing the ffmpeg tool. Users need to decompress it and configure environment variables to ensure that ffmpeg can be called directly in the command line. Step 2: Input file step, the user enters the video or audio file path to be identified through the command line, the format is ffmpeg -i file path; Step 3: Execute the recognition step. The ffmpeg tool automatically parses and displays the detailed encoding information of the file according to the input file path, including video encoding format, audio encoding format, resolution, and frame rate; Step 4: Display the result step, which displays the encoding information parsed by ffmpeg to the user in a clear and easy-to-read way; Step 5: Compatibility check step, compare the parsed encoding information with the decoding format table supported by the CoreChi multimedia chip, and automatically determine whether the file is compatible with the CoreChi chip; Step 6: Output report step, generate a report containing recognition results and compatibility judgment for reference by testers and R&D personnel.

2. A method for identifying multimedia video and audio decoding according to claim 1, characterized in that: The installation and configuration steps include: S1. Provide compressed package: a1. The development team or support department prepares a compressed package containing the ffmpeg tool. The compressed package should contain the executable file of ffmpeg. There may be different versions for different operating systems, such as Windows exe files, Linux binary files and necessary library files; a2. Make sure the compressed package contains a user manual document that details how to configure environment variables after decompression; S2. Decompress the compressed package: the user downloads and decompresses the compressed package to a specified directory, such as C:ffmpeg / Windows or / usr / local / ffmpeg / Linux; S3. Configure environment variables: a1. For Windows systems, users need to edit the Path variable in System Properties > Advanced > Environment Variables and add the bin directory path of ffmpeg; a2. For Linux or macOS systems, users need to edit their shell configuration files, such as bashrc, bash_profile, or zshrc, add the ffmpeg bin directory to the PATH environment variable, and execute the source command to make the configuration effective; S4. Verify the installation: Open the command line tool and enter ffmpeg -version. If the ffmpeg version information is displayed correctly, it means that the installation and configuration are successful.

3. A method for identifying multimedia video and audio decoding according to claim 2, characterized in that: The input file step includes: S1. Prepare files: The user ensures that the video or audio file to be identified has been stored in the file system and its complete path is known; S2. Input command: The user opens the command line tool and enters ffmpeg -i file path, where file path should be replaced with the actual file path, such as ffmpeg -i C:\videos\test.mp4 / Windows or ffmpeg -i / home / user / videos / test.mp4 / Linux / macOS.

4. A method for identifying multimedia video and audio decoding according to claim 3, characterized in that: The performing identification step comprises: S1. Start ffmpeg: After entering the command, ffmpeg will start immediately and try to open the specified file; S2. Parsing files: ffmpeg uses the built-in parser to read the file header information and extract the encoding format, resolution, and frame rate details of the video and audio; S3. Display information: ffmpeg outputs the parsed information to the command line interface in text form, including codec name, bit rate, frame rate, and resolution.

5. A method for identifying multimedia video and audio decoding according to claim 4, characterized in that: The step of displaying the result comprises: S1. Format output: Considering the clarity and readability of the information, write a script to parse the output of ffmpeg and present key information such as encoding format and resolution in the form of a table or list; S2. User interface display: For application scenarios that require a graphical user interface, a simple GUI tool is developed that calls the ffmpeg command internally and displays the output results in the GUI interface.

6. A method for identifying multimedia video and audio decoding according to claim 5, characterized in that: The compatibility checking step comprises: S1. Prepare the decoding format table: Make sure you have a decoding format table supported by the CoreChips multimedia chip, which lists in detail all supported codecs, resolutions, and frame rate parameters; S2. Read the decoding format table: In the compatibility checker, read the decoding format table and store it in a data structure that is easy to query, such as a hash table or a database; S3. Compare the parsing results: compare the encoding information parsed by ffmpeg with the entries in the decoding format table to check whether there is a match; S4. Determine compatibility: If a match is found, the file is determined to be compatible with the CoreChips chip. Otherwise, an incompatible prompt message is output.

7. A method for identifying multimedia video and audio decoding according to claim 6, characterized in that: The output report step comprises: S1. Prepare a report template: Design a report template that includes the identification results and compatibility judgment results. The template can be a text file, Excel table or HTML page; S2. Fill in the report content: fill in the corresponding fields in the report template according to the parsing results of ffmpeg and the results of the compatibility check; S3. Save and share the report: Save the generated report to a designated location and provide it to testers and developers for reference. The report can be shared via email, file sharing services, or project management systems.

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