WO2020062743A1 - 视频码率调整方法以及装置、终端及存储介质 - Google Patents

视频码率调整方法以及装置、终端及存储介质 Download PDF

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Publication number
WO2020062743A1
WO2020062743A1 PCT/CN2019/073195 CN2019073195W WO2020062743A1 WO 2020062743 A1 WO2020062743 A1 WO 2020062743A1 CN 2019073195 W CN2019073195 W CN 2019073195W WO 2020062743 A1 WO2020062743 A1 WO 2020062743A1
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WIPO (PCT)
Prior art keywords
correction value
code rate
rate correction
video
terminal
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PCT/CN2019/073195
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English (en)
French (fr)
Inventor
郭鹤
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北京微播视界科技有限公司
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Publication of WO2020062743A1 publication Critical patent/WO2020062743A1/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
    • 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 or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • 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 or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234381—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by altering the temporal resolution, e.g. decreasing the frame rate by frame skipping
    • 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
    • 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
    • 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
    • H04N21/4334—Recording operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording

Definitions

  • Embodiments of the present disclosure relate to the field of Internet technologies, and for example, to a video bit rate adjustment method and device, terminal, and storage medium.
  • the embodiments of the present disclosure provide a video bit rate adjustment method and device, a terminal, and a storage medium, so as to effectively reduce the data amount of the video on the premise of ensuring the video quality.
  • An embodiment of the present disclosure provides a video bit rate adjustment method.
  • the method includes:
  • a bit rate of the synthesized target video is adjusted according to at least one of the terminal data and user data.
  • An embodiment of the present disclosure further provides a video bit rate adjusting device, where the device includes:
  • An obtaining module configured to obtain data corresponding to a target video during recording, wherein the data includes at least one of terminal data and user data;
  • the bit rate adjustment module is configured to adjust the bit rate of the synthesized target video according to at least one of the terminal data and user data when synthesizing the target video.
  • An embodiment of the present disclosure further provides a terminal, including:
  • One or more processors are One or more processors;
  • Memory set to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors enable the video bit rate adjustment method according to any embodiment of the present disclosure to be implemented.
  • An embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the method for adjusting a video bit rate according to any of the embodiments of the present disclosure is implemented.
  • FIG. 1 is a flowchart of a video bit rate adjustment method according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a video bit rate adjustment method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a video bit rate adjusting apparatus according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a terminal in an embodiment of the present disclosure.
  • FIG. 1 illustrates a flowchart of a method for adjusting a video bit rate provided by an embodiment of the present disclosure.
  • This embodiment is applicable to a case where the amount of data of a video is effectively reduced while ensuring the quality of the video.
  • the method may be performed by a video bit rate adjusting device, which may be implemented in at least one of software and hardware, and may be configured in a terminal, such as a smart device with a camera device. As shown in FIG. 1, the method includes steps S110 and S120.
  • step S110 data corresponding to the target video during recording is acquired.
  • the data includes at least one of terminal data and user data.
  • the recording of short videos is more and more popular, and in order to increase the interest of recorded videos, users will perform various actions (such as dancing) during the video recording process Drive the terminal to perform corresponding movements or add various special effects to the captured video.
  • various actions such as dancing
  • the movement of the terminal or the special effects added by the user increases the complexity of the recorded video, and the more intense the movement or the more complicated the added special effects, the larger the recorded video file, that is, the larger the bit rate of the video recording required.
  • the terminal device responds to the user's trigger operation on the video shooting button on the current terminal interface, performs a video recording action, and records the video at a preset bit rate
  • the preset bit rate may be, for example, the maximum bit rate supported by the terminal system, for example, the preset bit rate is 12 Mb / s.
  • this embodiment records a target video at a bit rate of 12 Mb / s, and records at least one of terminal data and user data during the target video recording process, where the terminal data may include, for example, the terminal ’s Motion state parameters.
  • the user data includes data selected by the user for processing the video, such as special effect data added by the user, added filters or selected covers, and the like.
  • the terminal data can be recorded during the video shooting.
  • the target video can be determined by acquiring parameters collected by at least one sensor set on the terminal, and then determining the target video according to the parameters.
  • the terminal data corresponding to the recording is obtained by acquiring the angular velocity information of the terminal collected by the gyroscope on the terminal device, and determining the movement posture of the terminal according to the angular velocity information, and the terminal device is determined by the data collected by the acceleration sensor.
  • step S120 when the target video is synthesized, the bit rate of the synthesized target video is adjusted according to at least one of the terminal data and user data.
  • transcoding a video when synthesizing the target video includes correspondingly processing the captured video according to user data. For example, if the user adds at least one special effect during the compilation process, the special effect is superimposed on the video captured during the video shooting process to obtain the target video. Then, the bit rate of the synthesized target video is adjusted according to at least one of the terminal data and the user data. In specific implementation, the bit rate may be adjusted according to the following steps S121 and 122.
  • the target code rate correction value is determined in one of the following ways: (i) determining a first code rate correction value according to the terminal data, and determining a target code rate correction value according to the first code rate correction value; (ii) Determine a second code rate correction value according to the user data, determine a target code rate correction value according to the second code rate correction value; (iii) determine a first code rate correction value according to the terminal data, and determine according to the user data The second code rate correction value, and then the target code rate correction value is determined according to the first code rate correction value and the second code rate correction value.
  • a terminal motion type is determined according to the acquired terminal data, and a corresponding first bit rate correction value is determined according to the terminal motion type.
  • the intensity and complexity of the exercise corresponding to each exercise type are different, so the first bit rate correction values corresponding to different exercise types are also different.
  • the first code rate correction value corresponding to different exercise types may be set in advance, or learning may be performed according to a machine learning method to obtain an optimal code rate correction value corresponding to different exercise types.
  • a second bit rate correction value is determined according to the acquired user data.
  • the user adds special effects to the captured video during the compilation process, and then determines the second bit rate correction value according to the complexity level corresponding to the added special effects. Because the complexity of each special effect is different, different complexity levels are divided in advance based on the complexity of each special effect and stored in a data packet corresponding to the special effect. In one embodiment, the special effects are divided into three levels of A, B, and C, which are sequentially reduced. Among them, the second bit rate correction values corresponding to the special effects of the same level are the same. Of course, the best code rate correction value corresponding to the complexity level of different special effects can also be determined according to the method of machine learning.
  • the first bit rate correction value is the target bit rate correction value; if the terminal does not perform any action during video recording, It is only that the user processes the captured video during the compilation process, and the second bitrate correction value determined according to the user data is the target bitrate correction value.
  • the terminal performed an action, and the user made The video is processed, and the target bit rate correction value may, for example, be a result of weighted summing the first bit rate correction value and the second bit rate correction value.
  • the corresponding first bit rate correction value is 2Mb / s
  • the user-added special effects are "burr" and "illusion”
  • the corresponding second bit rate correction values are respectively For 2.5Mb / s and 3.5Mb / s
  • the target code rate correction value is 8Mb / s.
  • a weighting coefficient corresponding to each of the first code rate correction value and the second code rate correction value may be determined according to an empirical value or other related algorithms.
  • the first code rate correction value M, its corresponding weighting coefficient a, the second code rate correction value N, and its corresponding weighting coefficient b, then the target code rate correction value P a ⁇ M + b ⁇ N.
  • step S123 the bit rate of the target video after synthesis is adjusted according to the target bit rate correction value. Because the target video is recorded at the maximum bit rate allowed by the terminal system, the target video bit rate can be adjusted by subtracting the target bit rate correction value from the maximum bit rate. In one embodiment, if the maximum bit rate is 12 Mb / s and the target bit rate correction value is 8 Mb / s, then the adjusted target video bit rate is 4 Mb / s.
  • the data volume of the video file has been reduced, so it can be quickly uploaded to the server for extreme compression and video distribution on the server.
  • the embodiment of the present disclosure records terminal data and user data during video recording, and adjusts the original bit rate when recording a video according to the terminal data and user data, thereby achieving effective reduction of recording while ensuring recording clarity
  • the amount of data in the video file to facilitate the transfer of the video file.
  • FIG. 2 illustrates a flowchart of a video bit rate adjustment method provided by an embodiment of the present disclosure. As shown in FIG. 2, the method includes steps S210, S220, and S230.
  • step S210 data corresponding to the target video during recording is acquired.
  • the data includes at least one of terminal data and user data.
  • step S220 when the target video is synthesized, a bit rate of the synthesized target video is adjusted according to at least one of the terminal data and user data.
  • step S230 if at least one of the user name, the terminal model, the terminal data, and the user data of the target video meets a preset specific condition, the adjustment is performed according to a setting standard corresponding to the specific condition. After the target video bit rate is compensated.
  • the bit rate of the adjusted target video is compensated according to a setting standard corresponding to the specific condition. For example, if the adjusted target video code rate is 4Mb / s and the compensation value is 3Mb / s, then the compensated target video code rate is 7Mb / s, which meets the requirements of the influencer or anchor for the clarity of the recorded video, while ensuring that The transmission speed of the target video.
  • the embodiment of the present disclosure is directed to a case where an internet celebrity or a host records a video through a professional device. If at least one of the terminal model, the terminal data, and the user data meets a preset specific condition, the setting corresponding to the specific condition is used The set standard compensates the bit rate of the adjusted target video, thereby ensuring the clarity of the recorded video and reducing the data volume of the recorded video file to facilitate the transmission of the video file.
  • FIG. 3 shows a schematic structural diagram of a video bit rate adjustment device provided by an embodiment of the present disclosure. This embodiment is applicable to a case where the amount of data of a video is effectively reduced while ensuring the quality of the video.
  • the video bit rate adjusting apparatus includes: an obtaining module 310 and a bit rate adjusting module 320.
  • the obtaining module 310 is configured to obtain data corresponding to a target video during recording, where the data includes at least one of terminal data and user data.
  • the bit rate adjustment module 320 is configured to adjust the bit rate of the synthesized target video according to at least one of the terminal data and user data when synthesizing the target video.
  • the bit rate adjustment module 320 adjusts the original bit rate of the recorded video when synthesizing the target video according to at least one of terminal data and user data during the video recording process recorded by the acquisition module 310.
  • This implementation can effectively reduce the data volume of the recorded video file while ensuring the recording clarity, so as to facilitate the transmission of the video file.
  • the terminal data includes a motion state parameter of the terminal
  • the user data includes data during processing of a video selected by a user.
  • the apparatus further includes a recording module.
  • the recording module is configured to record a video at a preset bit rate in response to a user's trigger operation on a video shooting button on the current terminal interface.
  • the obtaining module is further configured to obtain parameters collected by at least one sensor provided on the terminal; and determine terminal data corresponding to the target video when recording according to the parameters.
  • the bit rate adjustment module includes a determination unit and an adjustment unit.
  • the determining unit is configured to determine the target code rate correction value in one of the following ways: (i) determining a first code rate correction value according to the terminal data, and determining a target code rate correction value according to the first code rate correction value; (ii) Determining a second code rate correction value according to the user data, determining a target code rate correction value according to the second code rate correction value; (iii) determining a first code rate correction value according to the terminal data, and A second bit rate correction value; determining a target bit rate correction value according to the first bit rate correction value and a second bit rate correction value; an adjustment unit configured to adjust the bit rate of the target video after synthesis according to the target bit rate correction value.
  • the target bit rate correction value is determined by weighting and summing the first bit rate correction value and the second bit rate correction value.
  • the apparatus further includes: a compensation module.
  • the compensation module is configured to compensate the bit rate of the adjusted target video.
  • the compensation module is configured to: in response to determining that at least one of a user name, a terminal model, the terminal data, and the user data of the target video meets a preset specific condition, The setting standard corresponding to the specific condition compensates the bit rate of the adjusted target video.
  • the video bit rate adjustment device provided by the embodiment of the present disclosure can execute the video bit rate adjustment method provided by any embodiment of the present disclosure, and has the corresponding function modules and beneficial effects of the execution method.
  • FIG. 4 shows a schematic structural diagram of a terminal 400 suitable for implementing the embodiments of the present disclosure.
  • the terminal devices in the embodiments of the present disclosure may include, but are not limited to, mobile phones, notebook computers, digital broadcast receivers, Personal Digital Assistants (PDAs), tablet computers (Portable Android Devices, PADs), and portable multimedia players. (Portable Media Player, PMP), mobile terminals such as car terminals (such as car navigation terminals), and fixed terminals such as digital (Television, TV), desktop computers, and the like.
  • PDAs Personal Digital Assistants
  • PMP Portable Multimedia Player
  • mobile terminals such as car terminals (such as car navigation terminals)
  • fixed terminals such as digital (Television, TV)
  • desktop computers and the like.
  • the terminal shown in FIG. 4 is only an example, and should not impose any limitation on the functions and scope of use of the embodiments of the present disclosure.
  • the terminal 400 may include a processing device (such as a central processing unit, a graphics processor, etc.) 401, which may be based on a program stored in a read-only memory (ROM) 402 or from a storage device 408 A program loaded into Random Access Memory (RAM) 403 to perform various appropriate actions and processes, such as implementing a video bit rate adjustment method provided by an embodiment of the present disclosure, including:
  • a processing device such as a central processing unit, a graphics processor, etc.
  • RAM Random Access Memory
  • the bit rate of the synthesized target video is adjusted according to the terminal motion data and special effect data.
  • the processing device 401, the ROM 402, and the RAM 403 are connected to each other through a bus 404.
  • An input / output (I / O) interface 405 is also connected to the bus 404.
  • the following devices can be connected to the I / O interface 405: including input devices 406, such as a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc .; including, for example, a liquid crystal display (Liquid Crystal Display, LCD)
  • An output device 407 such as a speaker, a vibrator, and the like; includes a storage device 408 such as a magnetic tape, a hard disk, and the like; and a communication device 409; and further includes an imaging device 410 such as a camera for video shooting.
  • the communication device 409 may allow the terminal 400 to perform wireless or wired communication with other devices to exchange data.
  • FIG. 4 shows a terminal 400 having various devices, it should be understood that it is not required to implement or have all the devices shown. More or fewer devices may be implemented or provided instead.
  • the process described above with reference to the flowchart may be implemented as a computer software program.
  • embodiments of the present disclosure include a computer program product including a computer program carried on a computer-readable medium, the computer program containing program code for performing a method shown in a flowchart.
  • the computer program may be downloaded and installed from the network through the communication device 409, or installed from the storage device 408, or installed from the ROM 402.
  • the processing device 401 the above functions defined in the method of the embodiment of the present disclosure are executed.
  • the computer-readable medium of the present disclosure may be a computer-readable signal medium or a computer-readable storage medium or any combination of the two.
  • the computer-readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable Erasable Programmable Read Only Memory (EPROM) or flash memory, optical fiber, compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable device described above The combination.
  • a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in combination with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a data signal that is contained in baseband or propagated as part of a carrier wave, and which carries computer-readable program code. Such a propagated data signal may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • the computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, and the computer-readable signal medium may send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device .
  • the program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: electric wires, optical cables, radio frequency (RF), or any suitable combination of the foregoing.
  • the computer-readable medium may be included in the terminal described above, or may exist alone without being assembled into the terminal.
  • the computer-readable medium carries one or more programs, and when the one or more programs are executed by the terminal, the terminal: obtains at least two Internet protocol addresses; and sends to the node evaluation device including the at least two Internet A node evaluation request for a protocol address, wherein the node evaluation device selects an Internet protocol address from the at least two Internet protocol addresses and returns it; receives the Internet protocol address returned by the node evaluation device; wherein the acquired Internet address
  • the protocol address indicates an edge node in the content distribution network.
  • the computer-readable medium carries one or more programs, and when the one or more programs are executed by the terminal, the terminal: receives a node evaluation request including at least two Internet Protocol addresses; and from the at least two Among the Internet protocol addresses, an Internet protocol address is selected; the selected Internet protocol address is returned; wherein the received Internet protocol address indicates an edge node in the content distribution network.
  • Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, or combinations thereof, including programming languages such as Java, Smalltalk, C ++, and also conventional Procedural programming language-such as "C" or similar programming language.
  • the program code can be executed entirely on the user's computer, partly on the user's computer, as an independent software package, partly on the user's computer, partly on a remote computer, or entirely on a remote computer or server.
  • the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or wide area network (WAN), or it can be connected to an external computer (such as through an Internet service provider Internet connection).
  • LAN local area network
  • WAN wide area network
  • Internet service provider Internet connection such as AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.
  • each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, which contains one or more functions to implement a specified logical function Executable instructions.
  • the functions noted in the blocks may also occur in a different order than those marked in the drawings. For example, two successively represented boxes may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved.
  • each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts can be implemented by a dedicated hardware-based system that performs the specified function or operation , Or it can be implemented with a combination of dedicated hardware and computer instructions.
  • the units described in the embodiments of the present disclosure may be implemented by software or hardware.
  • the name of the unit does not constitute a limitation on the unit itself in some cases.
  • the first obtaining unit may also be described as a “unit for obtaining at least two Internet Protocol addresses”.

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Abstract

公开了一种视频码率调整方法、装置、终端及存储介质，其中，所述方法包括：获取目标视频在录制时对应的数据，其中，所述数据包括终端数据和用户数据中的至少之一；合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。

Description

视频码率调整方法以及装置、终端及存储介质
本申请要求在2018年09月30日提交中国专利局、申请号为201811161595.3的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本公开实施例涉及互联网技术领域，例如涉及一种视频码率调整方法以及装置、终端及存储介质。
背景技术
近年来，网络技术的不断发展让我们的生活越来越丰富多彩。有了网络这个便利的载体，多媒体技术也得到了日新月异的进步，作为多媒体技术的核心及关键，多媒体视频编解码尤为重要。
对于视频多媒体业务，由于视频的数据量大，直接传输则需要比较大的网络带宽。因此，在保证视频质量的前提下，如何有效降低视频的数据量则成为一个待解决的技术问题。
发明内容
本公开实施例提供一种视频码率调整方法以及装置、终端及存储介质，以在保证视频质量的前提下，有效降低视频的数据量。
本公开实施例提供了一种视频码率调整方法，该方法包括：
获取目标视频在录制时对应的数据，其中，所述数据包括终端数据和用户数据中的至少之一；
合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
本公开实施例还提供了一种视频码率调整装置，该装置包括：
获取模块，设置为获取目标视频在录制时对应的数据，其中，所述数据包括终端数据和用户数据中的至少之一；
码率调整模块，设置为合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
本公开实施例还提供了一种终端，包括：
一个或多个处理器；
存储器，设置为存储一个或多个程序，
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本公开任一实施例所述的视频码率调整方法。
本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如本公开任一实施例所述的视频码率调整方法。
附图概述
图1是本公开实施例提供的视频码率调整方法的流程图；
图2是本公开实施例提供的视频码率调整方法的流程图；
图3是本公开实施例提供的视频码率调整装置的结构示意图；
图4是本公开实施例中的终端的结构示意图。
具体实施方式
下面结合附图和实施例对本公开作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本公开，而非对本公开的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本公开相关的部分而非全部结构。
下面参考图1，其示出了本公开实施例提供的一种视频码率调整方法的流程图，本实施例可适用于在保证视频质量的前提下，有效降低视频的数据量的情况，该方法可以由视频码率调整装置来执行，该装置可以采用软件和硬件中的至少之一的方式实现，并可配置于终端中，例如带有摄像装置的智能设备。如图1所示，该方法包括：步骤S110和步骤S120。
在步骤S110中，获取目标视频在录制时对应的数据。
其中，所述数据包括终端数据和用户数据中的至少之一。
目前，随着移动终端的普及和网络的提速，短视频的录制越来越受人们的青睐，而且为了增加录制的视频的趣味性，视频录制过程中用户会做各种动作(如跳舞)进而带动终端进行相应的运动或者为拍摄的视频添加各种特效。然而，终端的运动或用户添加的特效增加了录制的视频的复杂度，且运动越剧烈或添加的特效越复杂，使得录制的视频文件越大，也即需要视频录制的码率也 越大。
基于此，为保证录制的视频具有足够的清晰度，在开始录制视频时，终端设备响应于用户对当前终端界面上视频拍摄按钮的触发操作，执行视频录制动作，并且按照预设码率录制视频，其中，预设码率例如可以为终端系统所支持的最大码率，如预设码率为12Mb/s。
在一实施例中，本实施例以12Mb/s的码率录制目标视频，并在目标视频录制过程中记录终端数据和用户数据中的至少之一，其中，所述终端数据可例如包括终端的运动状态参数，所述用户数据包括用户选择的对视频进行的处理时的数据，例如用户添加的特效数据、添加的滤镜或选择的封面等。
由于整个视频录制过程包括视频拍摄环节和编译环节，因此，可在视频拍摄环节记录终端数据，例如，可通过获取设置于终端上的至少一个传感器采集到的参数，再依据所述参数确定目标视频在录制时对应的终端数据，在一实施例中，获取终端设备上陀螺仪采集的终端的角速度信息，根据所述角速度信息确定终端的运动姿态，又如通过加速度传感采集的数据确定终端设备的运动速度、运动的剧烈程度等；在编译环节记录用户数据，例如，记录用户添加的各种特效，并相应获取每个特效的详情信息，如每个特效的复杂程度，其中，所述特效包括例如“毛刺”、“幻觉”、以及“霓虹”等。
在步骤S120中，合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
本实施例中，合成所述目标视频时对视频进行转码，包括按照用户数据对拍摄的视频进行相应的处理。例如，若用户在编译环节添加了至少一个特效，则将所述特效与在视频拍摄环节所拍摄的视频进行叠加，得到目标视频。然后，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率，具体实现时，可按如下步骤S121和步骤122调整码率。
在步骤S121中，通过以下方式之一确定目标码率修正值：(i)根据所述终端数据确定第一码率修正值，根据第一码率修正值确定目标码率修正值；(ii)根据所述用户数据确定第二码率修正值，根据第二码率修正值确定目标码率修正值；(iii)根据所述终端数据确定第一码率修正值，并且根据所述用户数据确定第二码率修正值，再根据第一码率修正值和第二码率修正值确定目标码率修正值。
在拍摄视频时，如果用户带动终端做了各种动作，则根据获取的所述终端 数据确定终端运动类型，根据所述终端运动类型确定对应的第一码率修正值。其中，每种运动类型对应的运动剧烈程度、复杂程度不同，因此不同运动类型对应的第一码率修正值也不同。例如，可以预先对不同运动类型对应的第一码率修正值进行设定，也可以按照机器学习的方法进行学习，以得到不同的运动类型能够对应的最佳码率修正值。
在编译环节，如果用户对拍摄的视频进行了处理，则根据获取的所述用户数据确定第二码率修正值。在一实施例中，用户在编译环节为拍摄的视频添加了特效，则根据所添加特效对应的复杂度等级确定第二码率修正值。由于每个特效自身复杂度不同，因此，预先基于每个特效复杂程度划分不同的复杂度等级，并存储在特效对应的数据包中。在一实施例中，将特效划分为依次降低的A、B、C三个等级。其中，相同等级的特效对应的第二码率修正值相同。当然，也可以按照机器学习的方法来确定不同特效的复杂度等级所对应的最佳码率修正值。
在一实施例中，如果视频录制时，只获取到终端数据，用户没有对视频进行处理，则第一码率修正值即为目标码率修正值；如果视频录制时，终端没有进行任何动作，只是用户在编译环节对拍摄的视频进行处理，则根据用户数据确定的第二码率修正值即为目标码率修正值；除此，在视频录制时，终端进行了动作，且用户对拍摄的视频进行了处理，则所述目标码率修正值例如可以采用对所述第一码率修正值和第二码率修正值进行加权求和的结果。例如，如果根据终端数据确定的运动类型为跳动，其对应的第一码率修正值为2Mb/s，用户添加的特效为“毛刺”和“幻觉”，各自对应的第二码率修正值分别为2.5Mb/s、3.5Mb/s，则目标码率修正值为8Mb/s。在一实施例中，为了保证目标码率修正值得准确性，可根据经验值或其他相关算法确定所述第一码率修正值和第二码率修正值各自对应的加权系数。在一实施例中，第一码率修正值M，其对应的加权系数a，第二码率修正值N，其对应的加权系数b，则目标码率修正值P＝a×M+b×N。
在步骤S123中，根据目标码率修正值调整合成后的所述目标视频的码率。由于录制目标视频时是以终端系统允许的最大码率录制的，因此调整目标视频码率只需用最大码率减去目标码率修正值即可。在一实施例中，最大码率12Mb/s，目标码率修正值8Mb/s，则调整后的目标视频码率为4Mb/s。
对于调整码率后的视频，视频文件的数据量已降低，因此可实现快速上传 到服务器，以便在服务器上进行极限压缩与视频发布。
本公开实施例通过记录视频录制过程中的终端数据和用户数据，并根据所述终端数据和用户数据调整录制视频时的原始码率，由此实现在保证录制清晰度的情况下，有效降低录制的视频文件的数据量，以便于视频文件的传输。
下面参考图2，其示出了本公开实施例提供的一种视频码率调整方法的流程图。如图2所示，所述方法包括：步骤S210、步骤S220和步骤S230。
在步骤S210，获取目标视频在录制时对应的数据。
其中，所述数据包括终端数据和用户数据中的至少之一。
在步骤S220中，合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
在步骤S230中，如果所述目标视频的用户名、终端型号、所述终端数据和用户数据中的至少之一满足预设的特定条件，则按照与所述特定条件对应的设定标准对调整后的目标视频的码率进行补偿。
本公开实施例中，针对一些对录制的视频有特殊要求的人群，例如网红或各类主播，他们在录制视频时通常会采用比较专业的视频拍摄设备，而且其不希望因为修改码率降低视频文件的大小而降低录制视频的清晰度，因此针对这一特殊情况，在完成目标视频码率调整后，还需对调整后的目标视频的码率进行补偿。
在一实施例中，根据目标视频的用户名判断用户是否为主播或网红，根据终端型号确定终端是否为专业视频拍摄设备，同时若判断所述终端数据和用户数据中的至少之一满足预设的特定条件，则按照与所述特定条件对应的设定标准对调整后的目标视频的码率进行补偿。例如，调整后的目标视频码率为4Mb/s，补偿值为3Mb/s，则补偿后的目标视频的码率为7Mb/s，满足网红或主播对录制视频清晰度的要求，同时保证目标视频的传输速度。
本公开实施例针对网红或主播通过专业设备录制视频的情况，如果终端型号、所述终端数据和用户数据中的至少之一满足预设的特定条件，则按照与所述特定条件对应的设定标准对调整后的目标视频的码率进行补偿，由此保证录制视频的清晰度，降低录制的视频文件的数据量，以便于视频文件的传输。
下面参考图3，其示出了本公开实施例提供的一种视频码率调整装置的结构 示意图，本实施例可适用于在保证视频质量的前提下，有效降低视频的数据量的情况。如图3所示，所述视频码率调整装置包括：获取模块310和码率调整模块320。
获取模块310，设置为获取目标视频在录制时对应的数据，其中，所述数据包括终端数据和用户数据中的至少之一。
码率调整模块320，设置为合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
本公开实施例中，码率调整模块320根据获取模块310记录的视频录制过程中的终端数据和用户数据中的至少之一，在合成所述目标视频时调整录制视频时的原始码率，由此实现在保证录制清晰度的情况下，有效降低录制的视频文件的数据量，以便于视频文件的传输。
在一实施例中，所述终端数据包括终端的运动状态参数，所述用户数据包括用户选择的对视频进行的处理时的数据。
在一实施例中，所述装置还包括：录制模块。
录制模块，设置为响应于用户对当前终端界面上视频拍摄按钮的触发操作，按照预设码率录制视频。
在一实施例中，所述获取模块还设置为：获取设置于终端上的至少一个传感器采集到的参数；依据所述参数确定目标视频在录制时对应的终端数据。
在一实施例中，所述码率调整模块包括：确定单元和调整单元。
确定单元，设置为通过以下方式之一确定目标码率修正值：(i)根据所述终端数据确定第一码率修正值，根据第一码率修正值确定目标码率修正值；(ii)根据所述用户数据确定第二码率修正值，根据第二码率修正值确定目标码率修正值；(iii)根据所述终端数据确定第一码率修正值，以及根据所述用户数据第二码率修正值；根据第一码率修正值和第二码率修正值确定目标码率修正值；调整单元，设置为根据目标码率修正值调整合成后的所述目标视频的码率。
在一实施例中，所述目标码率修正值为对所述第一码率修正值和第二码率修正值进行加权求和确定的。
在一实施例中，所述装置还包括：补偿模块。
补偿模块，设置为对调整后的目标视频的码率进行补偿。
在一实施例中，所述补偿模块设置为：响应于确定所述目标视频的用户名、终端型号、所述终端数据和用户数据中的至少之一满足预设的特定条件，按照 与所述特定条件对应的设定标准对调整后的目标视频的码率进行补偿。
本公开实施例所提供的视频码率调整装置可执行本公开任意实施例所提供的视频码率调整方法，具备执行方法相应的功能模块和有益效果。
下面参考图4，其示出了适于用来实现本公开实施例的终端400的结构示意图。本公开实施例中的终端设备可以包括但不限于诸如移动电话、笔记本电脑、数字广播接收器、个人数字助理(Personal Digital Assistant，PDA)、平板电脑(Portable Android Device，PAD)、便携式多媒体播放器(Portable Media Player，PMP)、车载终端(例如车载导航终端)等的移动终端以及诸如数字(Television，TV)、台式计算机等的固定终端。图4示出的终端仅仅是一个示例，不应对本公开实施例的功能和使用范围带来任何限制。
如图4所示，终端400可以包括处理装置(例如中央处理器、图形处理器等)401，其可以根据存储在只读存储器(Read-Only Memory，ROM)402中的程序或者从存储装置408加载到随机访问存储器(Random Access Memory，RAM)403中的程序而执行各种适当的动作和处理，例如实现本公开实施例所提供的视频码率调整方法，包括：
获取目标视频在录制时对应的终端运动数据和用户添加的特效数据；
合成所述目标视频时，依据所述终端运动数据和特效数据调整合成后的所述目标视频的码率。
在RAM 403中，还存储有终端400操作所需的各种程序和数据。处理装置401、ROM 402以及RAM 403通过总线404彼此相连。输入/输出(I/O)接口405也连接至总线404。
通常，以下装置可以连接至I/O接口405：包括例如触摸屏、触摸板、键盘、鼠标、摄像头、麦克风、加速度计、陀螺仪等的输入装置406；包括例如液晶显示器(Liquid Crystal Display，LCD)、扬声器、振动器等的输出装置407；包括例如磁带、硬盘等的存储装置408；以及通信装置409；此外，还包括例如摄像头等用于视频拍摄的摄像装置410。通信装置409可以允许终端400与其他设备进行无线或有线通信以交换数据。虽然图4示出了具有各种装置的终端400，但是应理解的是，并不要求实施或具备所有示出的装置。可以替代地实施或具备更多或更少的装置。
特别地，根据本公开的实施例，上文参考流程图描述的过程可以被实现为 计算机软件程序。例如，本公开的实施例包括一种计算机程序产品，其包括承载在计算机可读介质上的计算机程序，该计算机程序包含用于执行流程图所示的方法的程序代码。在这样的实施例中，该计算机程序可以通过通信装置409从网络上被下载和安装，或者从存储装置408被安装，或者从ROM 402被安装。在该计算机程序被处理装置401执行时，执行本公开实施例的方法中限定的上述功能。
需要说明的是，本公开上述的计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质或者是上述两者的任意组合。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机访问存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)或闪存、光纤、便携式紧凑磁盘只读存储器(Compact Disc Read-Only Memory，CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本公开中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。而在本公开中，计算机可读信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读信号介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：电线、光缆、射频(Radio Frequency，RF)等，或者上述的任意合适的组合。
上述计算机可读介质可以是上述终端中所包含的；也可以是单独存在，而未装配入该终端中。
上述计算机可读介质承载有一个或者多个程序，当上述一个或者多个程序被该终端执行时，使得该终端：获取至少两个网际协议地址；向节点评价设备发送包括所述至少两个网际协议地址的节点评价请求，其中，所述节点评价设备从所述至少两个网际协议地址中，选取网际协议地址并返回；接收所述节点评价设备返回的网际协议地址；其中，所获取的网际协议地址指示内容分发网 络中的边缘节点。
或者，上述计算机可读介质承载有一个或者多个程序，当上述一个或者多个程序被该终端执行时，使得该终端：接收包括至少两个网际协议地址的节点评价请求；从所述至少两个网际协议地址中，选取网际协议地址；返回选取出的网际协议地址；其中，接收到的网际协议地址指示内容分发网络中的边缘节点。
可以以一种或多种程序设计语言或其组合来编写用于执行本公开的操作的计算机程序代码，上述程序设计语言包括面向对象的程序设计语言-诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言-诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络——包括局域网(LAN)或广域网(WAN)-连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
附图中的流程图和框图，图示了按照本公开各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，该模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本公开实施例中所涉及到的单元可以通过软件的方式实现，也可以通过硬件的方式来实现。其中，单元的名称在某种情况下并不构成对该单元本身的限定，例如，第一获取单元还可以被描述为“获取至少两个网际协议地址的单元”。

Claims (15)

  1. 一种视频码率调整方法，包括：
    获取目标视频在录制时对应的数据，其中，所述数据包括终端数据和用户数据中的至少之一；
    合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
  2. 根据权利要求1所述的方法，其中，所述终端数据包括终端的运动状态参数，所述用户数据包括用户选择的对视频进行处理时的数据。
  3. 根据权利要求1所述的方法，在所述获取目标视频在录制时对应的数据之前，所述方法还包括：
    响应于用户对当前终端界面上视频拍摄按钮的触发操作，按照预设码率录制视频。
  4. 根据权利要求1所述的方法，其中，获取目标视频在录制时对应的终端数据，包括：
    获取设置于终端上的至少一个传感器采集到的参数；
    依据所述参数确定目标视频在录制时对应的终端数据。
  5. 根据权利要求1所述的方法，其中，所述依据终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率，包括：
    通过以下方式之一确定目标码率修正值：(i)根据所述终端数据确定第一码率修正值，根据第一码率修正值确定目标码率修正值；(ii)根据所述用户数据确定第二码率修正值，根据第二码率修正值确定目标码率修正值；(iii)根据所述终端数据确定第一码率修正值，以及根据所述用户数据确定第二码率修正值，再根据第一码率修正值和第二码率修正值确定目标码率修正值；
    根据目标码率修正值调整合成后的所述目标视频的码率。
  6. 根据权利要求5所述的方法，其中，当根据第一码率修正值和第二码率修正值确定目标码率修正值时，所述目标码率修正值为对所述第一码率修正值和第二码率修正值进行加权求和确定的。
  7. 根据权利要求1所述的方法，在依据终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率之后，所述方法还包括：
    对调整后的目标视频的码率进行补偿。
  8. 根据权利要求7所述的方法，其中，所述对调整后的目标视频的码率进行补偿，包括：
    响应于确定所述目标视频的用户名、终端型号、所述终端数据和用户数据中的至少之一满足预设条件，按照与所述预设条件对应的设定标准对调整后的目标视频的码率进行补偿。
  9. 一种视频码率调整装置，其中，包括：
    获取模块，设置为获取目标视频在录制时对应的数据，其中，所述数据包括终端数据和用户数据中的至少之一；
    码率调整模块，设置为合成所述目标视频时，依据所述终端数据和用户数据中的至少之一调整合成后的所述目标视频的码率。
  10. 根据权利要求9所述的装置，还包括：
    录制模块，设置为响应于用户对当前终端界面上视频拍摄按钮的触发操作，按照预设码率录制视频。
  11. 根据权利要求9所述的装置，其中，所述获取模块还设置为：
    获取设置于终端上的至少一个传感器采集到的参数；依据所述参数确定目标视频在录制时对应的终端数据。
  12. 根据权利要求9所述的装置，其中，所述码率调整模块包括：
    确定单元，设置为通过以下方式之一确定目标码率修正值：(i)根据所述终端数据确定第一码率修正值，根据第一码率修正值确定目标码率修正值；(ii)根据所述用户数据确定第二码率修正值，根据第二码率修正值确定目标码率修正值；(iii)根据所述终端数据确定第一码率修正值，以及根据所述用户数据第二码率修正值，再根据第一码率修正值和第二码率修正值确定目标码率修正值；
    调整单元，设置为根据目标码率修正值调整合成后的所述目标视频的码率。
  13. 根据权利要求12所述的装置，其中，当根据第一码率修正值和第二码率修正值确定目标码率修正值时，所述目标码率修正值为对所述第一码率修正值和第二码率修正值进行加权求和确定的。
  14. 一种终端，其中，所述终端包括：
    至少一个处理器；
    存储器，设置为存储至少一个程序，
    当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-8中任一项所述的视频码率调整方法。
  15. 一种计算机可读存储介质，其上存储有计算机程序，其中，所述计算机程序被处理器执行时实现如权利要求1-8中任一项所述的视频码率调整方法。
PCT/CN2019/073195 2018-09-30 2019-01-25 视频码率调整方法以及装置、终端及存储介质 WO2020062743A1 (zh)

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