CN111163334B - Method and device for automatically converting video resolution - Google Patents
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- CN111163334B CN111163334B CN201911223436.6A CN201911223436A CN111163334B CN 111163334 B CN111163334 B CN 111163334B CN 201911223436 A CN201911223436 A CN 201911223436A CN 111163334 B CN111163334 B CN 111163334B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234363—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the spatial resolution, e.g. for clients with a lower screen resolution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
Abstract
The invention belongs to the technical field of image processing, and discloses a method and a device for automatically converting video resolution, wherein the method comprises the following steps: detecting whether an unconverted first video file exists; if the unconverted first video file is detected, acquiring the first video file to the local; converting the first video file into a plurality of second video files with different resolutions according to a preset rule, and storing the second video files locally; uploading the plurality of second video files with different resolutions to a first server for storage, and updating the conversion state of the first video file; and after the second video file is completely uploaded, deleting the local temporary file at least comprising the first video file and the second video file. The invention solves the problem of low processing efficiency when the current public front end for uploading source video and converting resolution is used in the background.
Description
Technical Field
The invention belongs to the technical field of video coding and decoding, and particularly relates to a method and a device for automatically converting video resolution.
Background
When the front end of the application selects pictures to automatically generate videos, various sample videos of the back end need to be acquired. In the existing working environment, authorized source videos need to be edited or information is input manually and then uploaded to a server for storage, and then the source videos are converted into videos with different resolution formats for storage manually so as to be called by front-end applications. The above operations are performed manually in the background, which is inefficient, and therefore, a more efficient video conversion processing method is desired by those skilled in the art to change the existing working condition.
Disclosure of Invention
The application provides a method and a device for automatically converting video resolution, which are used for solving the problem that the processing efficiency is not high when a public front end for uploading source video and converting resolution is used at a background at present.
According to a first aspect of the present application, there is provided a method of automatically converting a resolution of a video, comprising: detecting whether an unconverted first video file exists; if the unconverted first video file is detected, acquiring the first video file to the local; converting the first video file into a plurality of second video files with different resolutions according to a preset rule, and storing the second video files locally; uploading the plurality of second video files with different resolutions to a first server for storage, and updating the conversion state of the first video file; and after the second video file is completely uploaded, deleting the local temporary file at least comprising the first video file and the second video file.
In some embodiments, the detecting whether there is an unconverted first video file comprises: traversing storage information of the first video information stored in a second server, wherein the storage information comprises conversion state information of the first video file; and detecting whether the conversion state information is an unconverted first video file or not based on the conversion state information.
In some embodiments, if an unconverted first video file is detected, obtaining the first video file locally comprises: if the conversion state information of the first video file is detected to be unconverted in the storage information, acquiring the address information of the first video file, wherein the storage information also comprises the address information of the first video file; and downloading the first video file from the first service terminal to the local according to the address information and storing the first video file.
In some embodiments, the preset rules include a prescribed resolution format and automatic conversion instructions for converting the first video file.
In some embodiments, uploading the plurality of second video files with different resolutions to the first server for saving, and updating the transition state of the first video file includes: sending the second video file to a first service end, enabling the first service end to store the second video file, and returning storage information at least comprising the conversion state information and the address information; and receiving the storage information, and updating the storage information of the first video file on the second server according to the storage information.
In some embodiments, uploading the plurality of second video files with different resolutions to the first server for saving, and updating the transition state of the first video file includes: sending the second video file to a first service end, enabling the first service end to store the second video file, updating storage information of the first video file on the second service end and returning the storage information; and receiving the storage information, wherein the storage information comprises an instruction of completing storage of the second video file.
According to a second aspect of the present application, there is provided an apparatus for automatically converting a resolution of a video, comprising: a detection module configured to detect whether there is an unconverted first video file; the video acquisition module is configured to acquire the first video file to the local if the first video file which is not converted is detected; the video conversion module is configured to convert the first video file into a plurality of second video files with different resolutions according to a preset rule and store the second video files locally; the video uploading module is configured to upload the plurality of second video files with different resolutions to a first server for storage, and update the conversion state of the first video file; and the file clearing module is configured to delete the local temporary file at least comprising the first video file and the second video file after the second video file is completely uploaded.
According to a third aspect of the present application, there is provided a storage medium storing a computer program which, when executed, performs the method of any one of the first aspects.
According to a fourth aspect of the present application, there is provided a processor for executing a computer program stored in a memory, which when executed, performs the method of any of the first aspects.
According to a fifth aspect of the present application, there is provided an electronic device comprising: at least one processor; at least one memory storing a computer program; the processor is adapted to run a computer program stored in the memory, which when run performs the method of any of the first aspects.
The invention has the beneficial effects that: the method provided by the invention has the advantages that the first video file is uploaded to the first server for storage, the storage information of the first video file in the first server is stored in the second server, the storage information in the second server is detected locally to obtain the unconverted first video file, the first video file is downloaded to the local for multi-resolution conversion according to the storage information, the converted second video file is uploaded to the first server for storage, and the storage information in the second server is updated and the local temporary file is deleted simultaneously.
Drawings
Fig. 1 is an exemplary system architecture to which the method for automatically converting video resolution or the apparatus for automatically converting video resolution of the present application may be applied.
Fig. 2 is a flowchart of an embodiment of a method for automatically converting video resolution provided by the present application.
Fig. 3 is a flowchart of an embodiment of step S201 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in this application.
Fig. 4 is a flowchart of an embodiment of step S202 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in the present application.
Fig. 5 is a flowchart of an embodiment of step S202 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in the present application.
Fig. 6 is a flowchart of an embodiment of step S202 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in the present application.
Fig. 7 is a schematic structural diagram of an embodiment of an apparatus for automatically converting video resolution provided in the present application.
Fig. 8 is a schematic structural diagram of an embodiment of a detection module in the apparatus for automatically converting the resolution of a video according to the embodiment shown in fig. 7.
Fig. 9 is a schematic structural diagram of an embodiment of a video capture module in the apparatus for automatically converting video resolution shown in fig. 7.
Fig. 10 is a schematic structural diagram of an embodiment of a video upload module in the apparatus for automatically converting video resolution shown in fig. 7.
Fig. 11 is a schematic structural diagram of an embodiment of a video upload module in the apparatus for automatically converting video resolution shown in fig. 7.
Fig. 12 is a schematic structural diagram of an electronic device provided in the present application.
Detailed Description
Fig. 1 is an exemplary system architecture to which the method for automatically converting video resolution or the apparatus for automatically converting video resolution of the present application may be applied.
Referring to fig. 1, the system architecture includes a local terminal device, a cloud storage server, and a database, where the local terminal device and the cloud storage server are communicatively linked through a network, and the local terminal device and the database are also communicatively linked through a network, where the network is a medium for providing a communication link and may include a communication link or a communication network such as a wired network or a wireless network.
The local terminal device may be an electronic device such as a computer, a server, a workstation, and the like.
The cloud storage server may be a storage server or a cloud server, and is used for storing data files including videos and the like.
The database may be a database server or database software, etc.
It should be noted that, the method for automatically converting video resolution or the apparatus for automatically converting video resolution in the present application is generally executed by the local terminal device in the system architecture.
Example 1
Fig. 2 is a flowchart of an embodiment of a method for automatically converting video resolution provided by the present application.
Referring to fig. 2, the method for automatically converting the resolution of the video specifically includes the following steps:
s201, detecting whether an unconverted first video file exists.
In this step S201, the first video file is a source video obtained by editing and entering information on the authorized video manually by the background. Generally, the resolution of the first video file is higher, for example, the resolution of the first video file may be 4K, 2K or 1080P.
S202, if the unconverted first video file is detected, the first video file is acquired to the local.
In step S202, local refers to the execution subject of this step, and may be, for example, the local terminal device in the embodiment shown in fig. 1. In the step, the first video file is acquired to the local, so that the first video file can be operated and processed subsequently.
S203, converting the first video file into a plurality of second video files with different resolutions according to a preset rule, and storing the second video files locally.
In step S203, the preset rule includes a rule for converting the first video file into a plurality of second video files with different resolutions. For example, it is specified that the first video file needs to be converted into video files in the specified file formats with the resolutions of 3840x2160, 1920x1080, 1280x720 and 854x480, and these converted video files are the second video files.
Specifically, the preset rule includes a specified resolution format for converting the first video file and an automatic conversion instruction. The automatic conversion instruction includes an instruction for calling a conversion application and starting to execute a conversion step, and the setting may be set by a program or implemented in conversion software, and how to convert the video may refer to an existing conversion application.
It should be understood that the video conversion process is implemented by invoking a video conversion application, which is prior art and is not described in detail herein. For example, the application for converting video may be FFmpeg (also known as Fast Forward Mpeg), which is a set of open source computer programs that can be used to record, convert digital audio, video, and convert them into streams.
S204, uploading the plurality of second video files with different resolutions to a first server for storage, and updating the conversion state of the first video file.
In step S204, after the second video file is obtained through conversion, all the converted second video files are uploaded to the designated first service end for storage. The first service end may be software or hardware, and if the first service end is software, it may be a cloud service platform, and if the first service end is hardware, it may be a storage server. For example, the first service end may be a cloud storage server shown in fig. 1.
In addition, since uploading the second video file for saving means that the video conversion has been completed, the conversion state of the first video file needs to be modified to prevent the first video from being converted repeatedly.
And S205, after the second video file is completely uploaded, deleting the local temporary file at least comprising the first video file and the second video file.
In step S205, after the uploading and saving of the second video file are completed, the temporary file stored locally is cleared.
By the method, in the process of performing source video resolution conversion in the background, only after the authorized video is edited manually and information is input and then uploaded to the designated space for storage, the method provided by the application can be triggered to automatically check and automatically convert the source video, so that the video conversion efficiency is improved, and meanwhile, the labor cost is reduced.
Fig. 3 is a flowchart of an embodiment of step S201 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in this application.
Referring to fig. 3, the step S201 of detecting whether there is an unconverted first video file includes the following steps:
s301, traversing the storage information of the first video information stored in the second server, where the storage information includes the transition state information of the first video file.
In step S301, the first video file is stored in the first service end, and after the first video file is stored in the first service end, the address information of the first video file is returned to the local or database for storage. The local terminal device may be the local terminal device shown in fig. 1, and the database may be the database shown in fig. 1.
Specifically, the storage information may include address information and transition state information of the first video file. The conversion state information is a mark for marking whether the first video file is converted or not, and whether the corresponding first video file is converted or not can be detected and judged when the storage information is traversed according to the mark.
S302, based on the conversion state information, detecting whether the conversion state information is an unconverted first video file.
In step S302, it can be detected whether the corresponding first video file is converted according to the conversion status information in the storage information.
In the embodiment, the conversion state of the first video file stored on the first service end is detected through the data stored in the second service end, so that the separation of the file and the data and the indirect retrieval of the data are realized, the video file is not required to be directly detected, the execution efficiency of the steps is effectively improved, and larger calculation resources are not required to be occupied.
Fig. 4 is a flowchart of an embodiment of step S202 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in the present application.
Referring to fig. 4, the step S202, if it is detected that there is an unconverted first video file, acquiring the first video file to the local, includes the following steps:
s401, if the conversion state information of the first video file is detected to be unconverted in the storage information, acquiring the address information of the first video file, wherein the storage information also comprises the address information of the first video file;
s402, downloading the first video file from the first service terminal to the local according to the address information and storing the first video file.
In step S401, when detecting that there is an unconverted first video file, address information of the first video file is obtained, where the address information is a storage address of the first video file on the first service end.
In the step S402, after the address information is obtained, the first video file may be downloaded from the first server to the local for conversion according to the address information.
According to the embodiment, the first video file is acquired in a downloading mode, so that the load of local running resources is reduced.
Fig. 5 is a flowchart of an embodiment of step S202 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in the present application.
Referring to fig. 5, in the step S204, uploading the plurality of second video files with different resolutions to the first server for storage, and updating the conversion state of the first video file specifically includes the following steps:
s501, the second video file is sent to a first service end, the first service end stores the second video file, and storage information at least comprising the conversion state information and the address information is returned.
In this step, the first service end saves the second video file, and the saving may be independent saving or related saving with the first video file. If the association save is, the store information returned can be marked.
S502, receiving the storage information, and updating the storage information of the first video file on the second server according to the storage information.
In this step, after receiving the storage information of the second video file, the storage information of the first video file stored on the second server needs to be updated, where the updating includes updating and setting the conversion state information of the first video file, and storing the storage information of the second video file on the second server. For example, the conversion state information of the first video file is updated to be converted.
In this embodiment, the storage of the second video file and the update of the first video information conversion state information are realized by locally interacting with the first service end.
Fig. 6 is a flowchart of an embodiment of step S202 in the method for automatically converting the resolution of the video according to the embodiment of fig. 2 provided in the present application.
Referring to fig. 6, in the step S204, uploading the plurality of second video files with different resolutions to the first server for saving, and updating the conversion state of the first video file, the method may further include the following steps:
s601, sending the second video file to be uploaded to a first service end, enabling the first service end to store the second video file, updating storage information of the first video file on the second service end and returning the storage information;
s602, receiving the storage information, wherein the storage information comprises an instruction of completing storage of the second video file.
This embodiment differs from the embodiment shown in fig. 5 described above in that: in this embodiment, a first server (e.g., a cloud storage server shown in fig. 1) interacts with a second server (e.g., a database shown in fig. 1) to update storage information of a first video file, or further store storage information of a second video file on the second server.
Example 2
The present embodiment also provides an apparatus for automatically converting a video resolution, based on the same inventive concept as the method for automatically converting a video resolution in embodiment 1 described above.
Fig. 7 is a schematic structural diagram of an embodiment of an apparatus for automatically converting video resolution provided in the present application.
Referring to fig. 7, the apparatus 7 for automatically converting the video resolution includes: a detection module 71 configured to detect whether there is an unconverted first video file; a video acquiring module 72 configured to acquire the first video file to the local if detecting that there is an unconverted first video file; a video conversion module 73 configured to convert the first video file into a plurality of second video files with different resolutions according to a preset rule, and store the second video files locally; the video uploading module 74 is configured to upload the plurality of second video files with different resolutions to the first server for storage, and update the conversion state of the first video file; and a file removing module 75 configured to delete the local temporary file including at least the first video file and the second video file after the second video file is completely uploaded.
Fig. 8 is a schematic structural diagram of an embodiment of a detection module in the apparatus for automatically converting the resolution of a video according to the embodiment shown in fig. 7.
Referring to fig. 8, the detection module 71 includes: an information traversing unit 81 configured to traverse storage information of the first video information stored at the second server, the storage information including transition state information of the first video file; a state detecting unit 82 configured to detect whether there is a first video file whose conversion state information is not converted, based on the conversion state information.
Fig. 9 is a schematic structural diagram of an embodiment of a video capture module in the apparatus for automatically converting video resolution shown in fig. 7.
Referring to fig. 9, the video capture module 72 includes: an obtaining unit 91 configured to obtain address information of a first video file if it is detected that conversion state information of the first video file is not converted in the storage information, the storage information further including the address information of the first video file; and the downloading unit 92 is configured to download the first video file from the first service end to the local according to the address information and store the first video file.
The preset rule comprises a specified resolution format for converting the first video file and an automatic conversion instruction.
Fig. 10 is a schematic structural diagram of an embodiment of the video upload module 74 in the apparatus for automatically converting the video resolution according to the embodiment shown in fig. 7.
Referring to fig. 10, the video uploading module 74 includes: a first uploading unit 101, configured to send the second video file to a first service end for the first service end to store the second video file, and return storage information at least including the conversion status information and address information; the first receiving unit 102 is configured to receive the storage information and update the storage information of the first video file on the second server according to the storage information.
Fig. 11 is a schematic structural diagram of an embodiment of the video upload module 74 in the apparatus for automatically converting the video resolution shown in fig. 7.
Referring to fig. 11, the video uploading module 74 includes: a second uploading unit 111, configured to send the second video file to a first service end for the first service end to store the second video file, update the storage information of the first video file on the second service end, and return the storage information; a second receiving unit 112 configured to receive the storage information, the storage information including an instruction that the storage of the second video file is completed.
Example 3
The present embodiment also provides an electronic device that can be used to apply the method for automatically converting the resolution of video in embodiment 1.
Fig. 12 is a schematic structural diagram of an electronic device provided in the present application.
Referring to fig. 12, the electronic device 12 includes: at least one processor 121; at least one memory 122 storing a computer program 123; the processor 121 is configured to run a computer program 123 stored in the memory 122, and when the computer program 123 is run, the method according to any one of fig. 2 to 7 of embodiment 1 is performed.
Such electronic devices 12 include, but are not limited to, computers, servers, workstations, and the like. For example, the device may be a local terminal device as shown in fig. 1.
In some embodiments, the present application further provides a storage medium storing a computer program, which when executed performs the method according to any one of fig. 2 to 7 in embodiment 1.
In some embodiments, the present application further provides a processor for executing a computer program stored in a memory, and when the computer program runs, the processor executes the method according to any one of fig. 2 to 7 in embodiment 1.
Claims (8)
1. A method of automatically converting video resolution, comprising:
detecting whether an unconverted first video file exists; the method comprises the following steps: traversing storage information of the first video file stored in a second server, wherein the storage information comprises conversion state information of the first video file; detecting whether the conversion state information is an unconverted first video file or not based on the conversion state information;
if the unconverted first video file is detected, acquiring the first video file to the local;
converting the first video file into a plurality of second video files with different resolutions according to a preset rule, and storing the second video files locally;
uploading the plurality of second video files with different resolutions to a first server for storage, and updating the conversion state of the first video file;
and after the second video file is completely uploaded, deleting the local temporary file at least comprising the first video file and the second video file.
2. The method of claim 1, wherein if an unconverted first video file is detected, acquiring the first video file to local comprises:
if the conversion state information of the first video file is detected to be unconverted in the storage information, acquiring the address information of the first video file, wherein the storage information also comprises the address information of the first video file;
and downloading the first video file from the first service terminal to the local according to the address information and storing the first video file.
3. The method of claim 1, wherein the predetermined rules include a predetermined resolution format for converting the first video file and an automatic conversion command.
4. The method of claim 1, wherein uploading the plurality of second video files with different resolutions to a first server for saving and updating the conversion status of the first video file comprises:
sending the second video file to a first service end, enabling the first service end to store the second video file, and returning storage information at least comprising the conversion state information and the address information;
and receiving the storage information, and updating the storage information of the first video file on a second server according to the storage information.
5. The method of claim 1, wherein uploading the plurality of second video files with different resolutions to a first server for saving and updating the conversion status of the first video file comprises:
sending the second video file to a first service end, enabling the first service end to store the second video file, updating storage information of the first video file on the second service end and returning the storage information;
and receiving the storage information, wherein the storage information comprises an instruction of finishing the storage of the second video file.
6. An apparatus for automatically converting video resolution, comprising:
a detection module configured to detect whether there is an unconverted first video file;
the video acquisition module is configured to acquire a first video file to the local if the first video file which is not converted is detected;
the video conversion module is configured to convert the first video file into a plurality of second video files with different resolutions according to a preset rule and store the second video files locally;
the video uploading module is configured to upload the plurality of second video files with different resolutions to a first server for storage, and update the conversion state of the first video file;
and the file clearing module is configured to delete the local temporary file at least comprising the first video file and the second video file after the second video file is completely uploaded.
7. A storage medium, characterized in that the storage medium stores a computer program which, when executed, performs the method according to any one of claims 1-5.
8. An electronic device, comprising:
at least one processor;
at least one memory storing a computer program;
the processor is adapted to run a computer program stored in the memory, which when run performs the method according to any of claims 1-5.
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