WO2023134128A1 - 一种视频压缩处理方法、装置及介质 - Google Patents

一种视频压缩处理方法、装置及介质 Download PDF

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Publication number
WO2023134128A1
WO2023134128A1 PCT/CN2022/102093 CN2022102093W WO2023134128A1 WO 2023134128 A1 WO2023134128 A1 WO 2023134128A1 CN 2022102093 W CN2022102093 W CN 2022102093W WO 2023134128 A1 WO2023134128 A1 WO 2023134128A1
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video data
storage device
frame
external storage
original video
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PCT/CN2022/102093
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English (en)
French (fr)
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张贞雷
李拓
满宏涛
刘同强
周玉龙
邹晓峰
王贤坤
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苏州浪潮智能科技有限公司
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Publication of WO2023134128A1 publication Critical patent/WO2023134128A1/zh

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    • H—ELECTRICITY
    • 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
    • H04N19/423—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 characterised by memory arrangements
    • H—ELECTRICITY
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Definitions

  • the present application relates to a video compression processing method, device and medium.
  • the baseboard management control chip is used to monitor the status of the server, such as temperature, fan, and the operation of the central processing unit (Central Processing Unit, CPU).
  • the video data of the local server can be transmitted to the remote end through the network for remote display and monitor.
  • video data has a large amount of information, and the bandwidth required for the transmission network is relatively wide. Therefore, the video data to be transmitted is usually compressed, so as to save transmission bandwidth and storage space when transmitting on the network.
  • the transmission process of the video compression system in the existing baseboard management control chip is: first, the Video Graphics Array (Video Graphics Array, VGA) in the baseboard management control chip first writes the video data of the host computer (HOST) in the external storage device, Usually the external storage device adopts Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM) for short, and then the video compression control module reads out the original video data from the external storage device.
  • the video compression control module writes the compressed video data into the external storage device, the CPU drives the network card to read the compressed video data from the external storage device, and the network card sends the compressed video data to the remote decoding display through the network, thereby realizing remote Monitoring and management functions.
  • the inventor realizes that, because the original video data is first written into the external storage device, the video compression control module reads out from the external storage device outside the chip for compression processing, and the compressed video data after compression is written into the external storage device again.
  • the storage device reads and writes the external storage device multiple times during the process of compressing the video data, so the bus occupancy rate of the external storage device is very high, which seriously affects other applications' access to the external storage device, thus reducing the overall server system performance.
  • a video compression processing method, device and medium are provided.
  • a video compression processing method comprising:
  • Control the comparison device to write the original video data into the external storage device by frame, and control the video compression control module to read the original video data by frame from the external storage device;
  • the current frame of the original video data corresponding to the same line number In response to the original video data of the current frame being the same as the video data corresponding to the same line number of the previous frame of original video data, and in response to the control comparison device writing the original video data of the current frame into the external storage device, the current frame of the original video data corresponding to the same line number
  • the video data is converted into flag information and written to the external storage device; in response to the video data corresponding to the same line number of the original video data of the current frame and the previous frame original video data is the same, and in response to controlling the video compression control module from the external storage device Read out the original video data of the previous frame, and write the video data corresponding to the current same line number to the built-in storage device.
  • the video data corresponding to the same line number of the original video data of the current frame and the original video data of the previous frame in response to the video data corresponding to the same line number of the original video data of the current frame and the original video data of the previous frame being different, it also includes:
  • the comparison device In response to controlling the comparison device to write the original video data of the current frame into the external storage device, the current video data corresponding to the same row number is written into the external storage device; in response to controlling the video compression control module, the previous frame is read from the external storage device Original video data, read out the video data corresponding to the current same line number.
  • control comparison device writes the original video data into the external storage device frame by frame, including:
  • the video compression control module after controlling the video compression control module to read the last frame of original video data from the external storage device, it also includes:
  • Compressing the last frame of original video data by controlling the video compression control module to obtain the last frame of compressed video data
  • control video compression control module reads out the last frame of original video data from the external storage device, including:
  • the video data corresponding to the same row number of the last frame of original video data is read from the built-in storage device, wherein the above
  • the original video data of the last frame is the previous frame of the original video data of the last frame.
  • control comparison device writes the original video data into the external storage device frame by frame, and controls the video compression control module to read the original video data frame by frame from the external storage device, including:
  • the video compression control module reads the previous frame of original video data from the second external storage module
  • the video compression control module reads the original video data of the last frame from the first external storage module
  • the external storage device includes a first external storage module and a second external storage module.
  • the video compression control module writes the video data corresponding to the same line number of the previous frame of original video data into the built-in storage device, and reads the same line number of the previous frame of original video data from the built-in storage device
  • Corresponding video data including:
  • the built-in storage device includes a first built-in storage module and a second built-in storage module.
  • control comparison device after the control comparison device writes the original video data into the external storage device, it also includes:
  • the network card is controlled to read the compressed video data from the external storage device
  • the control network card sends the compressed video data to the remote end.
  • a video compression processing device comprising:
  • the writing module is used to control the comparison device to write the original video data into the external storage device by frame, and control the video compression control module to read the original video data by frame from the external storage device;
  • Judging module for writing the non-first frame original video data into the external storage device in response to the comparison device, and judging whether the video data corresponding to the same row number of the current frame original video data and the previous frame original video data are the same; In response to the same video data corresponding to the same line number of the original video data of the current frame and the previous frame of original video data, the same control module is triggered;
  • the same control module is used to write the original video data of the current frame into the external storage device in response to the control comparison device, and the current video data corresponding to the same line number is converted into flag information and written into the external storage device; in response to controlling the video compression control module When reading out the original video data of the last frame from the external storage device, write the video data corresponding to the current same row number into the built-in storage device.
  • a video compression processing device comprising:
  • One or more processors configured to implement the steps of the video compression processing method in any of the foregoing embodiments when executing computer-readable instructions.
  • One or more non-volatile computer-readable storage media storing computer-readable instructions, when the computer-readable instructions are executed by one or more processors, the one or more processors execute the video of any of the above-mentioned embodiments The steps of the compression processing method.
  • FIG. 1 is a schematic diagram of an application scenario of a video compression processing method provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a video compression processing method provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a video compression processing device provided by an embodiment of the present application.
  • FIG. 4 is a structural diagram of another video compression processing apparatus provided by an embodiment of the present application.
  • FIG. 5 is a structural diagram of a computer-readable storage medium provided by an embodiment of the present application.
  • the core of the present application is to provide a video compression processing method, device and medium that reduce the occupation of the bus bandwidth of the external storage device by the video compression function.
  • the video data to be transmitted is compressed.
  • the VGA in the baseboard management control chip first writes the original video data of the host HOST to the external storage device, usually the external storage device uses double data rate synchronous dynamic random access memory, and then the video compression control module in the baseboard management control chip Then read the original video data from the external storage device for video compression processing, the video compression control module writes the compressed video data into the external storage device, the CPU drives the network card to read the compressed video data from the external storage device, and the network card passes through the network Send the compressed video data to the remote decoding display, so as to realize the function of remote monitoring and management.
  • the video compression control module is read from the off-chip external storage device for compression processing, and the compressed video data after compression is written into the external storage device again.
  • the external storage device needs to be read and written multiple times, so the bus occupancy rate of the external storage device is very high, which seriously affects other applications’ access to the external storage device.
  • the bus occupancy rate of the external storage device is very high, which seriously affects other applications’ access to the external storage device.
  • FIG. 1 is a schematic diagram of an application scenario of a video compression processing method provided by an embodiment of the present application.
  • the comparison module 11 is used to write the original video data into the external storage device 12, and the video compression control module 13 is read out from the external storage device 12 Raw video data, and compress the original video data to generate compressed video data, then write the compressed video data into the external storage device 12, and the central processing unit 17 reads out the compressed video data stored in the external storage device 12 by controlling the network card 19 , the network card 19 sends the compressed video data to the remote end.
  • the comparison module 11 is also used to compare whether the original video data information sent by the VGA 16 is consistent with the original video data read out from the external storage device 12 by the video compression control module 13 .
  • Fig. 2 is a flowchart of a video compression processing method provided by the embodiment of the present application. As shown in Fig. 2, the video compression processing method includes:
  • S10 Control the comparison device to write the original video data into the external storage device by frame, and control the video compression control module to read the original video data by frame from the external storage device;
  • a frame is a single video frame which is the smallest unit in video animation, and a frame is a still image, and the images are displayed rapidly and continuously to form an animation. Therefore, when video data is compressed, data compression is usually performed frame by frame to obtain compressed video data.
  • the comparison device writes the original video data into the external storage device frame by frame.
  • each frame of image is composed of pixels, and displaying the pixels on the screen is the displayed content of the screen image.
  • the number of pixels contained in the horizontal and vertical directions of the image is certain, and the image size generally refers to the product of the number of pixels in the horizontal and vertical directions of the image.
  • the comparison device when the comparison device writes the original video data frame by frame into the external storage device, it judges by row whether the original video data of the current frame is the same as the video data corresponding to the same row number of the original video data of the previous frame.
  • the line number refers to the position flag information of each pixel of the video image, and the position of the pixel block in the current video image can be known through this flag information. Due to the pixel data in the front and rear frame images, the probability that all lines change is very low, and there are always many line data that are the same.
  • the external storage device refers to a storage device for storing original video data and compressed video data.
  • the external storage device is also used for storing data information required by other baseboard management control chips to run other processes.
  • the external storage device is a DDR memory.
  • the comparison device mentioned in this embodiment is a device for comparing whether the video data corresponding to the same line number of the current frame of the video data is the same as that of the previous frame.
  • the data is initially processed and the raw video data is sent to a comparison device.
  • the video compression control module reads out the original video data of the last frame from the external storage device and compresses it to obtain the last frame of compressed video data.
  • the comparison device writes the original video data of the current frame into the external storage device
  • the video compression control module reads the original video data of the last frame from the external storage device
  • the comparison device writes the original video data of the non-first frame to the external storage device.
  • the video compression control module sends the original video data of the last frame to the comparison module, and the comparison module judges the original video data of the current frame line by line corresponding to the same row number of the original video data of the previous frame.
  • the comparison module when the comparison module writes the original video data of the current frame into the external storage device, the corresponding line number of the same line number
  • the video data is converted into flag information and written to the external storage device, and when the video compression control module reads out the previous frame of original video data from the external storage device, the video compression control module converts the corresponding row number of the previous frame of original video data Video data is written to the built-in storage device.
  • the built-in storage device is the storage device of the baseboard management control chip.
  • the built-in storage device is a random access memory (Random Access Memory, RAM), also called the main memory, which can be read and written at any time (when refreshing Except), and fast, usually as a temporary data storage medium for operating systems or other running programs.
  • RAM Random Access Memory
  • this embodiment does not limit whether it is necessary to make a judgment when the comparison module writes the first frame of original video data into the external storage device, for example, when the comparison module writes the first frame of original video data into the external storage device
  • judge whether the video data corresponding to the same line number of the original video data of the current frame and the original video data of the previous frame are the same line by line. All are written into the external storage device; it is also possible not to judge, when the written video data is the first frame of original video data, all the first frame of original video data is directly written into the external storage device.
  • the comparison module in response to the built-in storage module being full, is controlled to write the remaining original video data into the external storage device.
  • the comparison device is controlled to write the original video data into the external storage device.
  • the control comparison device converts the video data corresponding to the same line number of the current frame original video data into flag information and writes the external storage device, and controls the video compression control module from the outside
  • the video data corresponding to the same line number of the previous frame of original video data is read from the storage device, and written into the built-in storage device.
  • the video data of the same line number of the current frame will not be written into the external storage device.
  • the probability that the corresponding video data changes is very low.
  • the video data corresponding to the same row number will not be written into the external storage device, thus reducing The amount of reading and writing to the external storage device is reduced, and the occupation of the bus bandwidth of the external storage device is reduced when compressing video data.
  • the video data corresponding to the same line number of the original video data of the current frame and the original video data of the previous frame in response to the video data corresponding to the same line number of the original video data of the current frame and the original video data of the previous frame being different, it also includes:
  • the comparison device In response to controlling the comparison device to write the original video data of the current frame into the external storage device, the current video data corresponding to the same row number is written into the external storage device; in response to controlling the video compression control module, the previous frame is read from the external storage device Original video data, read out the video data corresponding to the current same line number.
  • this embodiment mentions that when the control comparison device writes the original video data of the current frame into the external storage device, the video data corresponding to the current same line number is written into the external storage device, which means that the current same line number
  • the corresponding video data is all written into the external storage device, including video data information, flag bit information, etc.; when the control video compression control module reads the previous frame of original video data from the external storage device, it reads the current corresponding to the same row number.
  • the video data refers to that after the video compression control module reads the last frame of original video data from the external storage device, the video data corresponding to the same line number is not processed.
  • the control comparison device writes the original video data of the current frame into the external storage device
  • the The video data corresponding to the same line number are all written into the external storage device, and the video compression control module is controlled to read out the video data corresponding to the same line number of the previous frame of original video data from the external storage device.
  • the control comparison device writes the original video data into the external storage device frame by frame, including:
  • the comparison module does not judge the first frame of data, and directly writes all the first frame of original video data into the external storage device, speeding up the process of video compression processing .
  • the video compression control module after controlling the video compression control module to read the last frame of original video data from the external storage device, it also includes:
  • controlling the video compression control module to compress the original video data of the previous frame to obtain the compressed video data of the previous frame; and writing the compressed video data of the previous frame into an external storage device.
  • control video compression control module mentioned in this embodiment reads the video data corresponding to the same line number of the previous frame of original video data from the external storage device, it means that the control video compression control module reads the video data from the external storage device.
  • the previous frame of original video data is output, and the comparison device judges whether the video data corresponding to the same line number of the current frame original video data and the previous frame of original video data are the same, and the video compression control module compares the same video data corresponding to the same line number Write to the built-in storage device, if the video data corresponding to the same row number is different, it will not be processed.
  • the video compression control module After the judgment of each row of video data between the original video data of the current frame and the original video data of the previous frame is completed, the video compression control module will convert the original video data of the previous frame After the data is compressed, the last frame of compressed video data is obtained; and the last frame of compressed video data is written into an external storage device.
  • the video compression control module compresses the previous frame of original video and stores it in an external storage device for subsequent retrieval.
  • the last frame of original video data read by the video compression control module from the external storage device is the first frame of original video data
  • the comparison module when the comparison module writes the first frame of original video data into the external storage device, The first frame of video data will not be processed to convert video data into flag information.
  • the original video data read by the video compression control module does not contain flag information.
  • the original video data of the frame is not the original video data of the first frame.
  • the comparison module writes the original video data of the previous frame, it will judge whether the original video data of the previous frame is the same as the video data corresponding to the same line number of the original video data of the previous frame. , then the last frame of original video data may contain flag information.
  • the control video compression control module reads out the last frame of original video data from the external storage device, including:
  • the video data corresponding to the same row number of the last frame of original video data is read from the built-in storage device, wherein the above
  • the original video data of the last frame is the previous frame of the original video data of the last frame.
  • the comparison module When the comparison module writes the previous frame of original video data into the external storage device, it will judge whether the video data corresponding to the same line number of the previous frame of original video data and the previous frame of original video data are the same, if so, compare the device When the last frame of original video data is written into the external storage device, the video data corresponding to the current same line number is converted into flag information and written into the external storage device; the video compression control module reads the previous frame of original video from the external storage device When recording data, write the video data corresponding to the current same row number to the built-in storage device.
  • the video compression control module reads out the last frame of original video data from the external storage device, if the last frame of original video data contains flag information, read out the same row of the last frame of original video data from the built-in storage device According to the flag information, the video data stored in the built-in storage device and the original video data read from the external storage device are integrated to obtain complete original video data.
  • the same video data corresponding to the same line number of the two frames of video data before and after is stored in the built-in storage device, thus reducing the amount of reading and writing to the external storage device, and reducing the occupation of the bus bandwidth of the external storage device when compressing video data.
  • the video compression control module when the comparison device writes the original video data of the current frame into the external storage device, the video compression control module reads the original video data of the previous frame from the external storage device.
  • the comparison device writes the original video data frame by frame into the external storage device, and the video compression control module reads out the last frame of original video data from the external storage device, including:
  • the video compression control module reads the previous frame of original video data from the second external storage module
  • the video compression control module reads the previous frame of original video data from the first external storage module
  • the external storage device includes a first external storage module and a second external storage module.
  • the first external storage module and the second external storage module mentioned in this embodiment are two mutually independent storage areas allocated by the external storage device. If the comparison device writes the original video data of the current frame into the first external storage module, then the video compression control module reads the last frame of original video data from the second external storage module; The last frame of original video data is read out from the external storage module; that is, the ping-pong operation is realized through the two storage areas of the first external storage module and the second external storage module, thereby speeding up the data processing process.
  • the video compression control module writes the video data corresponding to the current same line number of the previous frame of original video data to the built-in storage device, and the video compression control module writes the corresponding video data from the built-in storage device Read the video data corresponding to the same line number of the original video data of the previous frame, including:
  • the built-in storage device includes a first built-in storage module and a second built-in storage module.
  • the first built-in storage module and the second built-in storage module mentioned in this embodiment are two mutually independent storage areas allocated by the built-in storage device. Data is written to the first built-in storage module, then read from the second built-in storage module the video data corresponding to the current same line number of the last frame of original video data; The video data corresponding to the line number is written to the second built-in storage module, then read the video data corresponding to the current same line number of the previous frame original video data from the first built-in storage module; through the first built-in storage module and the second The two storage areas of the built-in storage module realize the ping-pong operation, which speeds up the data processing process.
  • control comparison device after the control comparison device writes the original video data into the external storage device frame by frame, it also includes:
  • the network card is controlled to read the compressed video data from the external storage device
  • the control network card sends the compressed video data to the remote end.
  • the video compression control module compresses all the original video data and stores them in the external storage device.
  • the central processor of the substrate management control chip controls the network card to read the compressed video data from the external storage device, and controls the network card to compress the video data. sent to the remote end. After the video data is compressed, the amount of video data is reduced, and the compressed video data is sent to the remote decoding display through the network card, so as to realize the function of remote monitoring and management.
  • the video compression processing method is described in detail, and the present application also provides corresponding embodiments of the video compression processing apparatus. It should be noted that this application describes the embodiments of the device part from two perspectives, one is based on the perspective of functional modules, and the other is based on the perspective of hardware.
  • FIG. 3 is a schematic diagram of a video compression processing device provided in the embodiment of the present application. As shown in FIG. 3 , the video compression processing device includes:
  • Writing module 31 is used to control the comparison device to write the original video data into the external storage device by frame, and control the video compression control module to read the original video data by frame from the external storage device;
  • Judgment module 32 used for writing non-first frame original video data into the external storage device in response to the comparison device, and judging whether the video data corresponding to the same line number of the current frame original video data and the previous frame original video data are the same ;
  • the same control module 33 is triggered;
  • the same control module 33 is used to write the original video data of the current frame into the external storage device in response to the control comparison device, and the video data corresponding to the same current line number is converted into flag information and written into the external storage device; in response to the control of the video compression control
  • the module reads the original video data of the last frame from the external storage device, and writes the video data corresponding to the same line number to the built-in storage device.
  • Writing module 31 controls comparison device to write the original video data into the external storage device by frame, and controls the video compression control module to read the original video data by frame from the external storage device; Write the external storage device, whether the judging module 32 judges whether the video data corresponding to the same row number of the original video data of the current frame and the original video data of the previous frame is identical; The video data corresponding to the same row number is the same, and the same control module 33 is triggered; the same control module 33 writes the original video data of the current frame into the external storage device in response to the control comparison device, and converts the video data corresponding to the current same row number into a sign The information is written into the external storage device; in response to controlling the video compression control module to read the original video data of the last frame from the external storage device, write the video data corresponding to the current same line number into the built-in storage device.
  • the video data of the same line number of the current frame will not be written into the external storage device.
  • the probability that the video data corresponding to the same row number will change is very low, and there are a large number of video data corresponding to the same row number that are the same.
  • the video data corresponding to the same row number will not be written into the external storage device, so The amount of reading and writing to the external storage device is reduced, and the occupation of the bus bandwidth of the external storage device when compressing video data is reduced.
  • the video compression processing device also includes:
  • the difference control module is used to respond to the fact that the original video data of the current frame is different from the video data corresponding to the same line number of the original video data of the previous frame, and write the original video data of the current frame into the external storage device in response to the control comparison device , write the video data corresponding to the current same line number into the external storage device; in response to the video data corresponding to the same line number of the original video data of the current frame and the original video data of the previous frame are different, and in response to controlling the video compression control module Read out the original video data of the last frame from the external storage device, and read out the video data corresponding to the same row number at the moment.
  • the video compression processing device also includes a compression module and a compression writing module; the compression module is used to control the video compression control module to compress the previous frame of original video data to obtain the previous frame of compressed video data ; The compression writing module is used to write the last frame of compressed video data into the external storage device.
  • the video compression processing device further includes a reading module, and the reading module is used to respond to the last frame of original video data read by the video compression control module from the external storage device containing flag information, from The video data corresponding to the same row number of the original video data of the previous frame is read out from the built-in storage device.
  • the writing module 31 is specifically configured to write all the original video data of the first frame into the external storage device in response to the comparing device writing the first frame of original video data into the external storage device.
  • the writing module 31 is specifically configured to write the original video data of the current frame into the first external storage module in response to the comparison device, and the video compression control module reads the above data from the second external storage module.
  • a frame of original video data and in response to the comparison device writing the current frame of original video data into the second external storage module, the video compression control module reads the previous frame of original video data from the first external storage module; wherein, the external The external storage device includes a first external storage module and a second external storage module.
  • the reading module is also used to obtain the compressed video data after the original video data is compressed by the video compression control module, and after the compressed video data is stored in the external storage device, control the network card from the external read the compressed video data from the storage device; and control the network card to send the compressed video data to the remote end.
  • Each module in the above-mentioned video compression processing device may be fully or partially realized by software, hardware or a combination thereof.
  • the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, and can also be stored in the memory of the computer device in the form of software, so that the processor can invoke and execute the corresponding operations of the above-mentioned modules.
  • FIG. 4 is a structural diagram of another video compression processing device provided in an embodiment of the present application.
  • the video compression processing device includes: a memory 40 for storing computer-readable instruction;
  • One or more processors 41 are configured to implement the steps of the video compression processing method in any one of the foregoing embodiments when executing computer-readable instructions.
  • the video compression processing device may include, but is not limited to, a smart phone, a tablet computer, a notebook computer or a desktop computer, and the like.
  • the processor 41 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like.
  • the processor 41 can adopt at least one hardware form in a digital signal processor (Digital Signal Processor, DSP), a field programmable gate array (Field-Programmable Gate Array, FPGA), and a programmable logic array (Programmable Logic Array, PLA). to fulfill.
  • DSP Digital Signal Processor
  • FPGA Field-Programmable Gate Array
  • PLA programmable logic array
  • Processor 41 may also include a main processor and a coprocessor, and the main processor is a processor for processing data in a wake-up state, also known as a central processing unit (Central Processing Unit, CPU); the coprocessor is Low-power processor for processing data in standby state.
  • CPU Central Processing Unit
  • the processor 41 may be integrated with a graphics processor (Graphics Processing Unit, GPU), and the GPU is used for rendering and drawing the content that needs to be displayed on the display screen.
  • the processor 41 may also include an artificial intelligence (AI) processor, and the AI processor is used to process computing operations related to machine learning.
  • AI artificial intelligence
  • Memory 40 may include one or more computer-readable storage media, which may be non-transitory.
  • the memory 40 may also include high-speed random access memory, and non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices.
  • the memory 40 is at least used to store the following computer-readable instructions 401, wherein, after the computer-readable instructions are loaded and executed by the processor 41, the relevant steps of the video compression processing method disclosed in any of the foregoing embodiments can be realized .
  • the resources stored in the memory 40 may also include an operating system 402 and data 403, etc., and the storage method may be temporary storage or permanent storage.
  • the operating system 402 may include Windows, Unix, Linux and so on.
  • Data 403 may include, but is not limited to, data involved in implementing a video compression processing method, and the like.
  • the video compression processing device may further include a display screen 42 , an input/output interface 43 , a communication interface 44 , a power supply 45 and a communication bus 46 .
  • FIG. 4 does not constitute a limitation to the video compression processing apparatus, and may include more or less components than those shown in the figure.
  • the video compression processing device provided by the embodiment of the present application includes a memory and a processor.
  • the processor executes the program stored in the memory, it can realize the video compression processing method of any one of the above embodiments, and controls the comparison device to write the original video data into the external memory.
  • the comparison device is controlled to convert the current frame
  • the video data corresponding to the same line number of the original video data is converted into the flag information and written to the external storage device
  • the video compression control module is controlled to read the video data corresponding to the same line number of the previous frame of original video data from the external storage device, and Write to the built-in storage device.
  • the probability of the corresponding video data changing is very low, there are a large number of video data corresponding to the same line number are the same, and the video data corresponding to the same line number is not written into the external storage device, thus reducing the reading and writing of the external storage device Amount, reducing the occupation of the bus bandwidth of the external storage device when compressing video data.
  • the present application also provides an embodiment corresponding to one or more non-volatile computer-readable storage media storing computer-readable instructions.
  • Computer-readable instructions 52 are stored on the computer-readable storage medium 51 , and when the computer-readable instructions 52 are executed by a processor, the steps described in any one of the above method embodiments are implemented.
  • the methods in the above embodiments are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , executing all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: various media that can store program codes such as U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory, magnetic disk or optical disk.
  • the computer-readable storage medium provided by this embodiment has computer-readable instructions stored thereon.
  • the processor executes the program, the video compression processing method of any of the above-mentioned embodiments can be realized, and the comparison device is controlled to write the original video data into External storage device, when the original video data of the non-first frame is written into the external storage device, and the video data corresponding to the same row number of the original video data of the current frame and the original video data of the last frame are the same, then the control comparison device will The video data corresponding to the same line number of the frame original video data is converted into flag information and written to the external storage device, and the video compression control module is controlled to read the video data corresponding to the same line number of the previous frame of original video data from the external storage device, And write to the built-in storage device.
  • the video data of the same line number of the current frame will not be written into the external storage device.
  • the probability of the corresponding video data changing is very low, there are a large number of video data corresponding to the same line number are the same, and the video data corresponding to the same line number is not written into the external storage device, thus reducing the reading and writing of the external storage device Amount, reducing the occupation of the bus bandwidth of the external storage device when compressing video data.

Abstract

一种视频压缩处理方法、装置及介质。该方法包括：控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置按帧读出原始视频数据（S10）；响应于比较装置将非第一帧原始视频数据写入外置存储装置，逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同（S11）；若是，响应于控制比较装置将当前帧原始视频数据写入外置存储装置，将当前相同行号对应的视频数据转化为标志信息写入外置存储装置；响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，将当前相同行号对应的视频数据写入至内置存储装置（S12）。

Description

一种视频压缩处理方法、装置及介质
相关申请的交叉引用
本申请要求于2022年01月11日提交中国专利局，申请号为202210024332.8，申请名称为“一种视频压缩处理方法、装置及介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请一种视频压缩处理方法、装置及介质。
背景技术
基板管理控制芯片用于对服务器的状态进行监控，如温度，风扇，中央处理器(Central Processing Unit，CPU)运行情况，同时还可将本地服务器的视频数据通过网络传递给远端，供远端显示和监控。一般而言，视频数据信息量大，传输网络所需要的带宽相对较宽。因此通常对需传输的视频数据进行压缩处理，以便在网络上进行传送时节省传送带宽和存储空间。现有的基板管理控制芯片中视频压缩系统的传输流程是：首先基板管理控制芯片中的视频图形阵列(Video Graphics Array，VGA)将主机(HOST)的视频数据先写到外置存储装置中，通常外置存储装置采用双倍数据率同步动态随机存取存储器(Double Data Rate Synchronous Dynamic Random Access Memory，DDR SDRAM)简称DDR，然后视频压缩控制模块再从外置存储装置中读出原始视频数据，视频压缩控制模块将完成压缩后的视频数据写入外置存储装置，CPU驱动网卡从外置存储装置中读出压缩视频数据，网卡通过网络将压缩视频数据发送至远端解码显示，从而实现远程监控管理的功能。
发明人意识到，由于通过将原始视频数据先写入外置存储装置，视频压缩控制模块再从片外外置存储装置中读出进行压缩处理，完成压缩后的压缩视频数据再次写入外置存储装置，对视频数据进行压缩处理的过程中多次读写外置存储装置，因此对外置存储装置总线的占用率很高，严重影响其他的应用对外置存储装置的访问，因此降低了整个服务器系统的性能。
由此可见，如何降低视频压缩功能对外置存储装置总线带宽的占用，是本领域人员 亟待解决的技术问题。
发明内容
根据本申请公开的各种实施例，提供一种视频压缩处理方法、装置及介质。
一种视频压缩处理方法，包括：
控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置按帧读出原始视频数据；
响应于比较装置将非第一帧原始视频数据写入外置存储装置，逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同；以及
响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，且响应于控制比较装置将当前帧原始视频数据写入外置存储装置，将当前相同行号对应的视频数据转化为标志信息写入外置存储装置；响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，且响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，将当前相同行号对应的视频数据写入至内置存储装置。
在一个或多个实施例中，响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据不相同，还包括：
响应于控制比较装置将当前帧原始视频数据写入外置存储装置，当前相同行号对应的视频数据写入外置存储装置；响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，读出当前相同行号对应的视频数据。
在一个或多个实施例中，控制比较装置将原始视频数据按帧写入外置存储装置，包括：
响应于比较装置将第一帧原始视频数据写入外置存储装置，将第一帧原始视频数据全部写入外置存储装置。
在一个或多个实施例中，控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据之后，还包括：
在控制视频压缩控制模块将上一帧原始视频数据进行压缩，得到上一帧压缩视频数据；以及
将上一帧压缩视频数据写入外置存储装置。
在一个或多个实施例中，控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，包括：
响应于视频压缩控制模块从外置存储装置中读出的上一帧原始视频数据包含标志信 息，从内置存储装置中读出上上帧原始视频数据的相同行号对应的视频数据，其中，上上帧原始视频数据为上一帧原始视频数据的前一帧。
在一个或多个实施例中，控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置中按帧读出原始视频数据，包括：
响应于比较装置将当前帧原始视频数据写入第一外置存储模块，视频压缩控制模块从第二外置存储模块中读出上一帧原始视频数据；以及
响应于比较装置将当前帧原始视频数据写入第二外置存储模块，视频压缩控制模块从第一外置存储模块中读出上一帧原始视频数据；
其中，外置存储装置包括第一外置存储模块和第二外置存储模块。
在一个或多个实施例中，视频压缩控制模块将上一帧原始视频数据相同行号对应的视频数据写入内置存储装置，从内置存储装置中读取上上帧原始视频数据的相同行号对应的视频数据，包括：
响应于视频压缩控制模块将上一帧原始视频数据的当前相同行号对应的视频数据写入第一内置存储模块，从第二内置存储模块中读取上上帧原始视频数据的当前相同行号对应的视频数据；以及
响应于视频压缩控制模块将上一帧原始视频数据的当前相同行号对应的视频数据写入第二内置存储模块，从第一内置存储模块中读取上上帧原始视频数据的当前相同行号对应的视频数据；
其中，内置存储装置包括第一内置存储模块和第二内置存储模块。
在一个或多个实施例中，控制比较装置将原始视频数据写入外置存储装置之后，还包括：
在原始视频数据经过视频压缩控制模块进行压缩处理后得到压缩视频数据，并将压缩视频数据存储至外置存储装置之后，控制网卡从外置存储装置中读出压缩视频数据；以及
控制网卡将压缩视频数据发送至远程端。
一种视频压缩处理装置，包括：
写入模块，用于控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置按帧读出原始视频数据；
判断模块，用于响应于比较装置将非第一帧原始视频数据写入外置存储装置，逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同；响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，触 发相同控制模块；
相同控制模块，用于响应于控制比较装置将当前帧原始视频数据写入外置存储装置，当前相同行号对应的视频数据转化为标志信息写入外置存储装置；响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据时，将当前相同行号对应的视频数据写入至内置存储装置。
一种视频压缩处理装置，包括：
存储器，用于存储计算机可读指令；
一个或多个处理器，用于执行计算机可读指令时实现上述任一实施例的视频压缩处理方法的步骤。
一个或多个存储有计算机可读指令的非易失性计算机可读存储介质，计算机可读指令被一个或多个处理器执行时，使得一个或多个处理器执行上述任一实施例的视频压缩处理方法的步骤。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例，下面将对实施例中所需要使用的附图做简单的介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种视频压缩处理方法应用场景的示意图。
图2为本申请实施例提供的一种视频压缩处理方法的流程图。
图3为本申请实施例提供的一种视频压缩处理装置的示意图。
图4为本申请实施例提供的另一种视频压缩处理装置的结构图。
图5为本申请实施例提供的一种计算机可读存储介质的结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下，所获得的所有其他实施例，都属于本申请保护范围。
本申请的核心是提供一种降低视频压缩功能对外置存储装置总线带宽的占用的视频压缩处理方法、装置及介质。
为了使本技术领域的人员更好地理解本申请方案，下面结合附图和具体实施方式对本申请作进一步的详细说明。
由于为了节省视频数据在网络上进行传送时所需的传送带宽和存储空间，对需传输的视频数据进行压缩处理。基板管理控制芯片中的VGA将主机HOST的原始视频数据先写到外置存储装置中，通常外置存储装置采用双倍数据率同步动态随机存取存储器，然后基板管理控制芯片中视频压缩控制模块再从外置存储装置中读出原始视频数据进行视频压缩处理，视频压缩控制模块将压缩视频数据写入外置存储装置，CPU驱动网卡从外置存储装置中读出压缩视频数据，网卡通过网络将压缩视频数据发送至远端解码显示，从而实现远程监控管理的功能。
由于通过将原始视频数据先写入外置存储装置，视频压缩控制模块再从片外外置存储装置中读出进行压缩处理，完成压缩后的压缩视频数据再次写入外置存储装置这个过程，需要多次读写外置存储装置，因此对外置存储装置总线的占用率很高，严重影响其他的应用对外置存储装置的访问，考虑到视频数据的前后相邻帧的视频图像中，所有行都变化的概率很低，总有很多的行数据是相同的，这部分相同的数据会重复写入读出外置存储装置。
图1为本申请实施例提供的一种视频压缩处理方法应用场景的示意图，如图1所示，在视频压缩处理方法的应用场景中，基板管理控制芯片18中的VGA16用于接收主机端10发送的原始视频数据信息，并将原始视频数据信息发送至比较模块11，比较模块11用于将原始视频数据写入外置存储装置12，视频压缩控制模块13从外置存储装置12中读出原始视频数据，并对原始视频数据进行压缩，生成压缩视频数据，再将压缩视频数据写入外置存储装置12，中央处理器17通过控制网卡19读出外置存储装置12存储的压缩视频数据，网卡19将压缩视频数据发送至远程端。其中，比较模块11还用于比较VGA16发送的原始视频数据信息与视频压缩控制模块13从外置存储装置12中读出原始视频数据是否一致。
图2为本申请实施例提供的一种视频压缩处理方法的流程图，如图2所示，视频压缩处理方法，包括：
S10：控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置按帧读出原始视频数据；
S11：响应于比较装置将非第一帧原始视频数据写入外置存储装置，逐行判断当前帧 原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同；
S12：响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，且响应于控制比较装置将当前帧原始视频数据写入外置存储装置，当前相同行号对应的视频数据转化为标志信息写入外置存储装置；响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，且响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，将当前相同行号对应的视频数据写入至内置存储装置。
需要说明的是，帧是影像动画中最小单位的单幅影像画面，一帧就是一幅静止的图像，图像快速连续地显示便形成了动画。因此对视频数据进行压缩时，通常是逐帧地进行数据压缩，得到压缩视频数据。在本实施例中，比较装置将原始视频数据按帧写入外置存储装置。另外，每一帧图像都是由像素点组成的，而将像素点显示到屏幕上，就是看到的屏幕图像显示内容。一般情况下，图像的横向和纵向包含的像素点的个数是一定的，而一般情况下所说的图像大小就是指图像的横向和纵向的像素点个数的乘积。在本实施例中，比较装置将原始视频数据按帧写入外置存储装置时，按行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同。需要说明的是，行号指的是视频图像的每一个像素的位置标志信息，通过这个标志信息可以得知该像素块在当前视频图像的所处位置。由于前后帧图像中像素数据，所有行都变化的概率很低，总有很多的行数据是相同的。
需要说明的是，外置存储装置指的是用于存储原始视频数据和压缩视频数据的存储装置，另外，外置存储装置也用于存储其他基板管理控制芯片运行其他进程所需要的数据信息。在一个或多个实施例中，外置存储装置为DDR存储器。
本实施例提到的比较装置是用于比较视频数据的当前帧与上一帧的相同行号对应的视频数据是否相同的装置，具体地，主机将原始视频数据传输至VGA，VGA对原始视频数据进行初步处理，并将原始视频数据发送至比较装置。
在本实施例中，比较装置将当前帧原始视频数据写入外置存储装置时，视频压缩控制模块将上一帧原始视频数据从外置存储装置读出并进行压缩，得到上一帧压缩视频数据。
在比较装置将当前帧原始视频数据写入外置存储装置，视频压缩控制模块从外置存储装置读出上一帧原始视频数据的这个过程中，具体地，比较装置将非第一帧原始视频数据按帧写入外置存储装置时，视频压缩控制模块将上一帧原始视频数据发送至比较模块，比较模块逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视 频数据是否相同，若当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，比较模块将当前帧原始视频数据写入外置存储装置时，该相同行号对应的视频数据转化为标志信息写入外置存储装置，同时视频压缩控制模块从外置存储装置中读出上一帧原始视频数据时，视频压缩控制模块将上一帧原始视频数据相同行号对应的视频数据写入至内置存储装置。
需要说明的是，内置存储装置是基板管理控制芯片的存储装置，通常情况下，内置存储装置为随机存取存储器(Random Access Memory，RAM)，也叫主存，它可以随时读写(刷新时除外)，而且速度很快，通常作为操作系统或其他正在运行中的程序的临时数据存储介质。
需要说明的是，本实施例不限制当比较模块将第一帧原始视频数据写入外置存储装置时，是否需要进行判断，例如，当比较模块将第一帧原始视频数据写入外置存储装置时，逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同，由于不存在上一帧原始视频数据，判断为否，将第一帧原始视频数据全部写入外置存储装置；也可以不进行判断，当写入的视频数据为第一帧原始视频数据，直接将第一帧原始视频数据全部写入外置存储装置。
另外，在一个或多个实施例中，响应于内置存储模块被写满，控制比较模块将剩余的原始视频数据写入外置存储装置。
通过本实施例提供的视频压缩处理方法，控制比较装置将原始视频数据写入外置存储装置，当非第一帧原始视频数据写入外置存储装置时，且当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，则控制比较装置将当前帧原始视频数据的相同行号对应的视频数据转化为标志信息写入外置存储装置，控制视频压缩控制模块从外置存储装置中读出上一帧原始视频数据相同行号对应的视频数据，并写入至内置存储装置。当前帧原始视频数据与上一帧原始视频数据相同行号的视频数据相同时，当前帧相同行号的视频数据不写入外置存储装置，由于视频中前后两帧视频数据中，所有行号对应的视频数据都变化的概率很低，有大量的相同行号对应的视频数据是相同的，通过本申请提供的方法，相同行号对应的视频数据则不写入外置存储装置，因此减少了对外置存储装置的读写量，降低压缩视频数据时对外置存储装置总线带宽的占用。
在一个或多个实施例中，响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据不相同，还包括：
响应于控制比较装置将当前帧原始视频数据写入外置存储装置，当前相同行号对应的视频数据写入外置存储装置；响应于控制视频压缩控制模块从外置存储装置读出上一 帧原始视频数据，读出当前相同行号对应的视频数据。
需要说明的是，本实施例提到控制比较装置将当前帧原始视频数据写入外置存储装置时，当前相同行号对应的视频数据写入外置存储装置，指的是，当前相同行号对应的视频数据全部写入外置存储装置，包括视频数据信息、标志位信息等；控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据时，读出当前相同行号对应的视频数据，指的是，视频压缩控制模块从外置存储装置中读出上一帧原始视频数据后，相同行号对应的视频数据不作处理。
当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据不相同时，为了保证视频数据信息的完整，控制比较装置将当前帧原始视频数据写入外置存储装置时，该相同行号对应的视频数据全部写入外置存储装置，控制视频压缩控制模块从外置存储装置中读出上一帧原始视频数据相同行号对应的视频数据。
在一个或多个实施例中，为了加快基板管理控制芯片压缩视频的处理进程，控制比较装置将原始视频数据按帧写入外置存储装置，包括：
响应于比较装置将第一帧原始视频数据写入外置存储装置，将第一帧原始视频数据全部写入外置存储装置。
当写入的视频数据为第一帧原始视频数据时，比较模块不对第一帧数据进行判断处理，直接将第一帧原始视频数据全部写入外置存储装置，加快对视频进行压缩处理的进程。
在一个或多个实施例中，控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据之后，还包括：
控制视频压缩控制模块将上一帧原始视频数据进行压缩，得到上一帧压缩视频数据；以及将上一帧压缩视频数据写入外置存储装置。
本实施例提到的控制视频压缩控制模块从外置存储装置中读出上一帧原始视频数据相同行号对应的视频数据之后，指的是，控制视频压缩控制模块从外置存储装置中读出上一帧原始视频数据，比较装置逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同，视频压缩控制模块将相同行号对应的相同的视频数据写入至内置存储装置，相同行号对应的视频数据不同则不作处理，在当前帧原始视频数据与上一帧原始视频数据的各行视频数据判断完成后，视频压缩控制模块将上一帧原始视频数据压缩后，得到上一帧压缩视频数据；将上一帧压缩视频数据写入外置存储装置。
通过本实施例，视频压缩控制模块将上一帧原始视频进行压缩处理并存储于外置存 储装置，以便于后续调取。
根据上述实施例，若视频压缩控制模块从外置存储装置读出的上一帧原始视频数据为第一帧原始视频数据，则比较模块将第一帧原始视频数据写入外置存储装置时，不会对第一帧视频数据作将视频数据转换为标志信息的处理，视频压缩控制模块读取到的原始视频数据不包含标志信息，若视频压缩控制模块从外置存储装置读出的上一帧原始视频数据为非第一帧原始视频数据，比较模块写入上一帧原始视频数据时，会判断上一帧原始视频数据与上上帧原始视频数据的相同行号对应的视频数据是否相同，则上一帧原始视频数据可能包含标志信息，在一个或多个实施例中，控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，包括：
响应于视频压缩控制模块从外置存储装置中读出的上一帧原始视频数据包含标志信息，从内置存储装置中读出上上帧原始视频数据的相同行号对应的视频数据，其中，上上帧原始视频数据为上一帧原始视频数据的前一帧。
当比较模块将上一帧原始视频数据写入外置存储装置时，会逐行判断上一帧原始视频数据与上上帧原始视频数据的相同行号对应的视频数据是否相同，若是，比较装置将上一帧原始视频数据写入外置存储装置时，当前相同行号对应的视频数据转化为标志信息写入外置存储装置；视频压缩控制模块从外置存储装置读出上上帧原始视频数据时，将当前相同行号对应的视频数据写入至内置存储装置。因此，当视频压缩控制模块从外置存储装置读出上一帧原始视频数据时，若上一帧原始视频数据包含标志信息时，从内置存储装置中读出上上帧原始视频数据的相同行号对应的视频数据，根据标志信息，将存储于内置存储装置的视频数据与从外置存储装置读出的原始视频数据进行整合，得到完整的原始视频数据。
前后两帧视频数据相同行号对应的相同视频数据存储于内置存储装置，因此减少了对外置存储装置的读写量，降低压缩视频数据时对外置存储装置总线带宽的占用。
根据上述实施例，比较装置将当前帧原始视频数据写入外置存储装置的同时，视频压缩控制模块从外置存储装置中读出上一帧原始视频数据，为了加快数据处理进程，在一个或多个实施例中，比较装置将原始视频数据按帧写入外置存储装置，视频压缩控制模块从外置存储装置中读出上一帧原始视频数据，包括：
响应于比较装置将当前帧原始视频数据写入第一外置存储模块，则视频压缩控制模块从第二外置存储模块中读出上一帧原始视频数据；以及
响应于比较装置将当前帧原始视频数据写入第二外置存储模块，则视频压缩控制模块从第一外置存储模块中读出上一帧原始视频数据；
其中，外置存储装置包括第一外置存储模块和第二外置存储模块。
本实施例提到的第一外置存储模块和第二外置存储模块为外置存储装置分配的两个相互独立的存储区域，若比较装置将当前帧原始视频数据写入第一外置存储模块，则视频压缩控制模块从第二外置存储模块中读出上一帧原始视频数据；若比较装置将当前帧原始视频数据写入第二外置存储模块，则视频压缩控制模块从第一外置存储模块中读出上一帧原始视频数据；即，通过第一外置存储模块和第二外置存储模块两个存储区域实现乒乓操作，加快了数据处理进程。
根据上述实施例，在一个或多个实施例中，视频压缩控制模块将上一帧原始视频数据的当前相同行号对应的视频数据写入至内置存储装置，视频压缩控制模块从内置存储装置中读取上上帧原始视频数据的相同行号对应的视频数据，包括：
响应于视频压缩控制模块将上一帧原始视频数据的当前相同行号对应的视频数据写入第一内置存储模块，则从第二内置存储模块中读取上上帧原始视频数据的当前相同行号对应的视频数据；以及
响应于视频压缩控制模块将上一帧原始视频数据的当前相同行号对应的视频数据写入第二内置存储模块，则从第一内置存储模块中读取上上帧原始视频数据的当前相同行号对应的视频数据；
其中，内置存储装置包括第一内置存储模块和第二内置存储模块。
本实施例提到的第一内置存储模块和第二内置存储模块为内置存储装置分配的两个相互独立的存储区域，若视频压缩控制模块将上一帧原始视频数据当前相同行号对应的视频数据写入至第一内置存储模块，则从第二内置存储模块中读取上上帧原始视频数据的当前相同行号对应的视频数据；若视频压缩控制模块将上一帧原始视频数据当前相同行号对应的视频数据写入至第二内置存储模块，则从第一内置存储模块中读取上上帧原始视频数据的当前相同行号对应的视频数据；通过第一内置存储模块和第二内置存储模块两个存储区域实现乒乓操作，加快了数据处理进程。
根据上述实施例，需要将经过预设处理后的压缩视频数据发送至远程端，在一个或多个实施例中，控制比较装置将原始视频数据按帧写入外置存储装置之后，还包括：
在原始视频数据经过视频压缩控制模块进行压缩处理后得到压缩视频数据，并存储至外置存储装置之后，控制网卡从外置存储装置中读出压缩视频数据；以及
控制网卡将压缩视频数据发送至远程端。
视频压缩控制模块将全部的原始视频数据进行压缩处理后存储至外置存储装置，基板管理控制芯片的中央处理器控制网卡从外置存储装置中读出压缩视频数据，并控制网 卡将压缩视频数据发送至远程端。视频数据经过压缩处理后视频数据量减少，通过网卡将压缩视频数据发送至远端解码显示，从而实现远程监控管理的功能。
在上述实施例中，对于视频压缩处理方法进行了详细描述，本申请还提供视频压缩处理装置对应的实施例。需要说明的是，本申请从两个角度对装置部分的实施例进行描述，一种是基于功能模块的角度，另一种是基于硬件的角度。
图3为本申请实施例提供的一种视频压缩处理装置的示意图，如图3所示，视频压缩处理装置包括：
写入模块31，用于控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置按帧读出原始视频数据；
判断模块32，用于响应于比较装置将非第一帧原始视频数据写入外置存储装置，逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同；响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，触发相同控制模块33；
相同控制模块33，用于响应于控制比较装置将当前帧原始视频数据写入外置存储装置，当前相同行号对应的视频数据转化为标志信息写入外置存储装置；响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，将当前相同行号对应的视频数据写入至内置存储装置。
写入模块31控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从外置存储装置按帧读出原始视频数据；响应于比较装置将非第一帧原始视频数据写入外置存储装置，判断模块32逐行判断当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据是否相同；响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，触发相同控制模块33；相同控制模块33响应于控制比较装置将当前帧原始视频数据写入外置存储装置，将当前相同行号对应的视频数据转化为标志信息写入外置存储装置；响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据时，将当前相同行号对应的视频数据写入至内置存储装置。
在当前帧原始视频数据与上一帧原始视频数据相同行号的视频数据相同时，当前帧相同行号的视频数据不写入外置存储装置，由于视频中前后两帧视频数据中，所有行号对应的视频数据都变化的概率很低，有大量的相同行号对应的视频数据是相同的，通过本申请提供的方法，相同行号对应的视频数据则不写入外置存储装置，因此减少了对外置存储装置的读写量，降低压缩视频数据时对外置存储装置总线带宽的占用。
在一个或多个实施例中，视频压缩处理装置还包括：
相异控制模块，用于响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据不相同，且响应于控制比较装置将当前帧原始视频数据写入外置存储装置，将当前相同行号对应的视频数据写入外置存储装置；响应于当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据不相同，且响应于控制视频压缩控制模块从外置存储装置读出上一帧原始视频数据，读出当前相同行号对应的视频数据。
在一个或多个实施例中，视频压缩处理装置还包括压缩模块和压缩写入模块；压缩模块，用于控制视频压缩控制模块将上一帧原始视频数据进行压缩，得到上一帧压缩视频数据；压缩写入模块，用于将上一帧压缩视频数据写入外置存储装置。
在一个或多个实施例中，视频压缩处理装置还包括读取模块，读取模块用于响应于视频压缩控制模块从外置存储装置中读出的上一帧原始视频数据包含标志信息，从内置存储装置中读出上上帧原始视频数据的相同行号对应的视频数据。
在一个或多个实施例中，写入模块31具体用于响应于比较装置将第一帧原始视频数据写入外置存储装置，将第一帧原始视频数据全部写入外置存储装置。
在一个或多个实施例中，写入模块31具体用于响应于比较装置将当前帧原始视频数据写入第一外置存储模块，视频压缩控制模块从第二外置存储模块中读出上一帧原始视频数据；以及响应于比较装置将当前帧原始视频数据写入第二外置存储模块，视频压缩控制模块从第一外置存储模块中读出上一帧原始视频数据；其中，外置存储装置包括第一外置存储模块和第二外置存储模块。
在一个或多个实施例中，读取模块还用于在原始视频数据经过视频压缩控制模块进行压缩处理后得到压缩视频数据，并将压缩视频数据存储至外置存储装置之后，控制网卡从外置存储装置中读出压缩视频数据；以及控制网卡将压缩视频数据发送至远程端。
关于视频压缩处理装置的具体限定可以参见上文中对于视频压缩处理方法的限定，在此不再赘述。上述视频压缩处理装置中的各个模块可全部或部分通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于计算机设备中的处理器中，也可以以软件形式存储于计算机设备中的存储器中，以便于处理器调用执行以上各个模块对应的操作。
在一个或多个实施例中，如图4所示，图4为本申请实施例提供的另一种视频压缩处理装置的结构图，视频压缩处理装置包括：存储器40，用于存储计算机可读指令；
一个或多个处理器41，用于执行计算机可读指令时实现如上述任一个实施例的视频压缩处理方法的步骤。
本实施例提供视频压缩处理装置可以包括但不限于智能手机、平板电脑、笔记本电 脑或台式电脑等。
其中，处理器41可以包括一个或多个处理核心，比如4核心处理器、8核心处理器等。处理器41可以采用数字信号处理器(Digital Signal Processor，DSP)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)、可编程逻辑阵列(Programmable Logic Array，PLA)中的至少一种硬件形式来实现。处理器41也可以包括主处理器和协处理器，主处理器是用于对在唤醒状态下的数据进行处理的处理器，也称中央处理器(Central Processing Unit，CPU)；协处理器是用于对在待机状态下的数据进行处理的低功耗处理器。在一些实施例中，处理器41可以在集成有图像处理器(Graphics Processing Unit，GPU)，GPU用于负责显示屏所需要显示的内容的渲染和绘制。一些实施例中，处理器41还可以包括人工智能(Artificial Intelligence，AI)处理器，该AI处理器用于处理有关机器学习的计算操作。
存储器40可以包括一个或多个计算机可读存储介质，该计算机可读存储介质可以是非暂态的。存储器40还可包括高速随机存取存储器，以及非易失性存储器，比如一个或多个磁盘存储设备、闪存存储设备。本实施例中，存储器40至少用于存储以下计算机可读指令401，其中，该计算机可读指令被处理器41加载并执行之后，能够实现前述任一实施例公开的视频压缩处理方法的相关步骤。另外，存储器40所存储的资源还可以包括操作系统402和数据403等，存储方式可以是短暂存储或者永久存储。其中，操作系统402可以包括Windows、Unix、Linux等。数据403可以包括但不限于实现视频压缩处理方法涉及到的数据等。
在一些实施例中，视频压缩处理装置还可包括有显示屏42、输入输出接口43、通信接口44、电源45以及通信总线46。
本领域技术人员可以理解，图4中示出的结构并不构成对视频压缩处理装置的限定，可以包括比图示更多或更少的组件。
本申请实施例提供的视频压缩处理装置，包括存储器和处理器，处理器在执行存储器存储的程序时，能够实现上述任一个实施例的视频压缩处理方法，控制比较装置将原始视频数据写入外置存储装置，当非第一帧原始视频数据写入外置存储装置时，且当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，则控制比较装置将当前帧原始视频数据的相同行号对应的视频数据转化为标志信息写入外置存储装置，控制视频压缩控制模块从外置存储装置中读出上一帧原始视频数据相同行号对应的视频数据，并写入至内置存储装置。当前帧原始视频数据与上一帧原始视频数据相同行号的视频数据相同时，当前帧相同行号的视频数据不写入外置存储装置，由于视频中前后两 帧视频数据中，所有行号对应的视频数据都变化的概率很低，有大量的相同行号对应的视频数据是相同的，相同行号对应的视频数据不写入外置存储装置，因此减少了对外置存储装置的读写量，降低压缩视频数据时对外置存储装置总线带宽的占用。
最后，参考图5所示，本申请还提供一个或多个存储有计算机可读指令的非易失性计算机可读存储介质对应的实施例。计算机可读存储介质51上存储有计算机可读指令52，计算机可读指令52被处理器执行时实现如上述任一个方法实施例中记载的步骤。
可以理解的是，如果上述实施例中的方法以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
本实施例提供的计算机可读存储介质，其上存储有计算机可读指令，当处理器执行该程序时，可实现上述任一个实施例的视频压缩处理方法，控制比较装置将原始视频数据写入外置存储装置，当非第一帧原始视频数据写入外置存储装置时，且当前帧原始视频数据与上一帧原始视频数据的相同行号对应的视频数据相同，则控制比较装置将当前帧原始视频数据的相同行号对应的视频数据转化为标志信息写入外置存储装置，控制视频压缩控制模块从外置存储装置中读出上一帧原始视频数据相同行号对应的视频数据，并写入至内置存储装置。当前帧原始视频数据与上一帧原始视频数据相同行号的视频数据相同时，当前帧相同行号的视频数据不写入外置存储装置，由于视频中前后两帧视频数据中，所有行号对应的视频数据都变化的概率很低，有大量的相同行号对应的视频数据是相同的，相同行号对应的视频数据不写入外置存储装置，因此减少了对外置存储装置的读写量，降低压缩视频数据时对外置存储装置总线带宽的占用。
以上对本申请所提供的视频压缩处理方法、视频压缩处理装置及计算机可读存储介质进行了详细介绍。说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。对于实施例公开的装置而言，由于其与实施例公开的方法相对应，所以描述的比较简单，相关之处参见方法部分说明即可。应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以对本申请进行若干改进和修饰，这些改进和修饰也落入本申请权利要求的保护范围内。
还需要说明的是，在本说明书中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。

Claims (11)

  1. 一种视频压缩处理方法，其特征在于，包括：
    控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从所述外置存储装置按帧读出所述原始视频数据；
    响应于所述比较装置将非第一帧所述原始视频数据写入所述外置存储装置，逐行判断当前帧所述原始视频数据与上一帧所述原始视频数据的相同行号对应的视频数据是否相同；以及
    响应于当前帧所述原始视频数据与上一帧所述原始视频数据的相同行号对应的视频数据相同，且响应于控制所述比较装置将当前帧所述原始视频数据写入所述外置存储装置，将当前所述相同行号对应的视频数据转化为标志信息写入所述外置存储装置；响应于当前帧所述原始视频数据与上一帧所述原始视频数据的相同行号对应的视频数据相同，且响应于控制所述视频压缩控制模块从所述外置存储装置读出上一帧所述原始视频数据，将当前所述相同行号对应的视频数据写入至内置存储装置。
  2. 根据权利要求1所述的方法，其特征在于，响应于当前帧所述原始视频数据与上一帧所述原始视频数据的相同行号对应的视频数据不相同，还包括：
    响应于控制所述比较装置将当前帧所述原始视频数据写入所述外置存储装置，当前所述相同行号对应的视频数据写入外置存储装置；响应于控制所述视频压缩控制模块从所述外置存储装置读出上一帧所述原始视频数据，读出当前所述相同行号对应的视频数据。
  3. 根据权利要求1或2所述的方法，其特征在于，所述控制比较装置将原始视频数据按帧写入外置存储装置，包括：
    响应于所述比较装置将第一帧所述原始视频数据写入外置存储装置，将第一帧所述原始视频数据全部写入所述外置存储装置。
  4. 根据权利要求2所述的方法，其特征在于，所述控制所述视频压缩控制模块从所述外置存储装置读出上一帧所述原始视频数据之后，还包括：
    控制所述视频压缩控制模块将上一帧所述原始视频数据进行压缩，得到上一帧压缩视频数据；以及
    将上一帧所述压缩视频数据写入所述外置存储装置。
  5. 根据权利要求2或4所述的方法，其特征在于，所述控制所述视频压缩控制模块从所述外置存储装置读出上一帧所述原始视频数据，包括：
    响应于所述视频压缩控制模块从所述外置存储装置中读出的上一帧所述原始视频数据包含所述标志信息，从所述内置存储装置中读出上上帧所述原始视频数据的所述相同行号对应的视频数据，其中，上上帧所述原始视频数据为上一帧所述原始视频数据的前一帧。
  6. 根据权利要求2、4至5任意一项所述的方法，其特征在于，所述控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从所述外置存储装置中按帧读出所述原始视频数据，包括：
    响应于所述比较装置将当前帧所述原始视频数据写入第一外置存储模块，所述视频压缩控制模块从第二外置存储模块中读出上一帧所述原始视频数据；以及
    响应于所述比较装置将当前帧所述原始视频数据写入所述第二外置存储模块，所述视频压缩控制模块从所述第一外置存储模块中读出上一帧所述原始视频数据；
    其中，所述外置存储装置包括所述第一外置存储模块和所述第二外置存储模块。
  7. 根据权利要求5或6所述的方法，其特征在于，所述视频压缩控制模块将上一帧所述原始视频数据的当前所述相同行号对应的视频数据写入所述内置存储装置，从所述内置存储装置中读取上上帧所述原始视频数据的所述相同行号对应的视频数据，包括：
    响应于所述视频压缩控制模块将上一帧所述原始视频数据的当前所述相同行号对应的视频数据写入第一内置存储模块，从第二内置存储模块中读取上上帧所述原始视频数据的当前所述相同行号对应的视频数据；以及
    响应于所述视频压缩控制模块将上一帧所述原始视频数据的当前所述相同行号对应的视频数据写入所述第二内置存储模块，从所述第一内置存储模块中读取上上帧所述原始视频数据的当前所述相同行号对应的视频数据；
    其中，所述内置存储装置包括所述第一内置存储模块和所述第二内置存储模块。
  8. 根据权利要求5至7任意一项所述的方法，其特征在于，所述控制比较装置将原始视频数据按帧写入外置存储装置之后，还包括：
    在所述原始视频数据经过所述视频压缩控制模块进行压缩处理后得到压缩视频数据，并将所述压缩视频数据存储至所述外置存储装置之后，控制网卡从所述外置存储装置中读出所述压缩视频数据；以及
    控制所述网卡将所述压缩视频数据发送至远程端。
  9. 一种视频压缩处理装置，其特征在于，包括：
    写入模块，用于控制比较装置将原始视频数据按帧写入外置存储装置，控制视频压缩控制模块从所述外置存储装置按帧读出所述原始视频数据；
    判断模块，用于响应于所述比较装置将非第一帧所述原始视频数据写入所述外置存储装置，逐行判断当前帧所述原始视频数据与上一帧所述原始视频数据的相同行号对应的视频数据是否相同；响应于当前帧所述原始视频数据与上一帧所述原始视频数据的相同行号对应的视频数据相同，触发相同控制模块；以及
    所述相同控制模块，用于响应于控制所述比较装置将当前帧所述原始视频数据写入所述外置存储装置，将当前所述相同行号对应的视频数据转化为标志信息写入所述外置存储装置；响应于控制所述视频压缩控制模块从所述外置存储装置读出上一帧所述原始视频数据，将当前所述相同行号对应的视频数据写入至内置存储装置。
  10. 一种视频压缩处理装置，其特征在于，包括：
    存储器，用于存储计算机可读指令；
    一个或多个处理器，用于执行所述计算机可读指令时实现如权利要求1至8任一项所述的方法的步骤。
  11. 一个或多个存储有计算机可读指令的非易失性计算机可读存储介质，其特征在于，所述计算机可读指令被一个或多个处理器执行时，使得所述一个或多个处理器执行如权利要求1至8任一项所述的方法的步骤。
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