CN109195010B - Code rate adjusting method and device - Google Patents
Code rate adjusting method and device Download PDFInfo
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- CN109195010B CN109195010B CN201810930796.9A CN201810930796A CN109195010B CN 109195010 B CN109195010 B CN 109195010B CN 201810930796 A CN201810930796 A CN 201810930796A CN 109195010 B CN109195010 B CN 109195010B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44227—Monitoring of local network, e.g. connection or bandwidth variations; Detecting new devices in the local network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/4728—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for selecting a Region Of Interest [ROI], e.g. for requesting a higher resolution version of a selected region
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64746—Control signals issued by the network directed to the server or the client
- H04N21/64761—Control signals issued by the network directed to the server or the client directed to the server
- H04N21/64769—Control signals issued by the network directed to the server or the client directed to the server for rate control
Abstract
The invention discloses a code rate adjusting method, which comprises the following steps: determining the minimum bandwidth required by a main display area according to the minimum code rate corresponding to the resolution of the main display area in the electronic equipment; comparing the minimum bandwidth to a current bandwidth of a network; and determining the target code rate corresponding to the main display area according to the comparison result. The invention also provides a code rate adjusting device.
Description
Technical Field
The present invention relates to data transmission technologies, and in particular, to a method and an apparatus for adjusting a code rate.
Background
In the prior art, in the process of playing multiple channels of videos, the setting of the code rates of a main display area and a slave display area in electronic equipment is usually adjusted manually. This not only increases the complexity of the user's operation, but also severely affects the user's viewing experience.
Disclosure of Invention
In order to solve the above technical problem, embodiments of the present invention provide a data transmission method and apparatus.
The technical scheme of the embodiment of the invention is realized as follows:
according to an aspect of the embodiments of the present invention, there is provided a method for adjusting a code rate, the method including:
determining the minimum bandwidth required by a main display area according to the minimum code rate corresponding to the resolution of the main display area in the electronic equipment;
comparing the minimum bandwidth to a current bandwidth of a network;
and determining the target code rate corresponding to the main display area according to the comparison result.
In the foregoing solution, determining the target code rate corresponding to the main display area according to the comparison result includes:
when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, acquiring the maximum code rate corresponding to the current bandwidth;
and determining the maximum code rate corresponding to the current bandwidth as the target code rate corresponding to the main display area.
In the foregoing solution, determining the target code rate corresponding to the main display area according to the comparison result includes:
when the comparison result indicates that the minimum bandwidth is larger than the current bandwidth, adjusting a first resolution corresponding to the main display area to generate a second resolution lower than the first resolution;
acquiring the maximum code rate corresponding to the second resolution;
and determining the maximum code rate corresponding to the second resolution as the target code rate corresponding to the main display area.
In the above scheme, the method further comprises: when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, converting video information displayed from a display area in the electronic equipment into a plurality of pictures;
and playing the plurality of pictures in a continuous playing mode in the slave display area.
In the foregoing solution, determining the target code rate corresponding to the main display area according to the comparison result includes:
and when the comparison result represents that the minimum bandwidth is smaller than or equal to the current bandwidth, determining the minimum code rate as a target code rate corresponding to the main display area.
In the above scheme, when the comparison result indicates that the minimum bandwidth is smaller than the current bandwidth, determining the number of slave display areas in the electronic device;
and determining the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference between the current bandwidth and the bandwidth of the master display area.
In the above scheme, when the comparison result indicates that the minimum bandwidth is smaller than the current bandwidth, the video information played in the secondary display area in the electronic device is cached according to the target code rate and the resolution corresponding to the primary display area, so as to obtain a cache file of the secondary display area.
In the above scheme, the method further comprises: acquiring display positions corresponding to display areas in the electronic equipment; determining an area corresponding to a display position matched with a preset display position as the main display area; or receiving a region selection instruction sent by the electronic equipment; responding to the area selection instruction, and determining a display area corresponding to the area selection instruction as the main display area.
According to another aspect of the embodiments of the present invention, there is provided a code rate adjusting apparatus, the apparatus including: the determining unit is used for determining the minimum bandwidth required by the main display area according to the minimum code rate corresponding to the resolution of the main display area in the electronic equipment; the target code rate corresponding to the main display area is determined according to the comparison result of the minimum bandwidth and the current bandwidth of the network;
and the comparison unit is used for comparing the minimum bandwidth with the current bandwidth of the network.
According to a third aspect of the embodiments of the present invention, there is provided a code rate adjusting apparatus, the apparatus including a memory and a processor; wherein the memory is to store a computer program operable on the processor; the processor is configured to execute the steps of any one of the above code rate adjustment methods when the computer program is run.
The technical scheme of the embodiment of the invention provides a code rate adjusting method and a device, and the method and the device are used for determining the minimum bandwidth corresponding to a main display area according to the minimum code rate corresponding to the resolution of the main display area in electronic equipment; comparing the minimum bandwidth to a current bandwidth of a network; and determining the target code rate corresponding to the main display area according to the comparison result. Thus, the phenomenon of pause in the main display area when the bandwidth is insufficient can be avoided.
Drawings
FIG. 1 is a flowchart illustrating a method for adjusting a code rate according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a terminal screen during multi-channel video playing;
FIG. 3 is a first schematic diagram illustrating the structure of a code rate adjusting apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a code rate adjusting device in the embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
FIG. 1 is a flowchart illustrating a method for adjusting a code rate according to an embodiment of the present invention; as shown in fig. 1, the method includes:
in the embodiment of the invention, the method is mainly applied to terminals capable of playing multi-channel videos, and the terminals include but are not limited to mobile phones, tablet computers, desktop computers, televisions, servers and other electronic equipment. Specifically, an application program capable of playing videos may be installed on the electronic device, and a user may play multiple channels of videos through the application program. When a user plays multiple channels of videos through the electronic device, a screen display interface of the electronic device may be specifically as shown in fig. 2.
FIG. 2 is a schematic diagram of a terminal screen during multi-channel video playing; as shown in fig. 2, the display device includes a main display area 201 and at least one slave display area 202, wherein the electronic device can obtain a display position corresponding to each display area in the electronic device; determining an area corresponding to a display position matched with a preset display position as a main display area; or the electronic equipment receives a region selection instruction sent by the user aiming at the electronic equipment; in response to the area selection instruction, the display area corresponding to the area selection instruction is determined as the main display area.
The area selection instruction may be an area selection instruction triggered by an operation of clicking a certain display area by a user, or may also be an area selection instruction triggered by an operation of dragging a certain display area by a user, specifically how to trigger the area selection instruction, which is not limited in the embodiment of the present invention.
Since the user usually focuses on the video content played by the main display region 201 during the video viewing process, the display area of the main display region 201 is usually larger than that of the at least one slave display region 202.
In practical applications, the resolution of the main display area 201 may be set actively by a user, or may be a default resolution set for a video playing application. When the electronic device needs to acquire the resolution of the main display area 201, the resolution of the main display area 201 may be determined according to the detection result by detecting the video playing parameter played by the main display area 201.
In the embodiment of the present invention, when the electronic device determines the resolution of the main display area 201, the minimum code rate corresponding to the resolution may also be determined according to the resolution of the main display area 201 in the electronic device.
Here, the same resolution usually corresponds to a plurality of selectable code rates, for example, the resolution a may correspond to three code rates a1, a2, A3 from top to bottom. Therefore, after determining the resolution of the main display area 201, the electronic device may determine the minimum bitrate corresponding to the resolution of the main display area 201 by querying the corresponding relationship between the resolution and the bitrate recorded in the database.
In the embodiment of the present invention, the electronic device may further determine the minimum bandwidth required by the main display area according to the minimum code rate corresponding to the resolution.
Specifically, when the electronic device determines the minimum bitrate corresponding to the resolution of the main display area, the minimum bandwidth required by the main display area when the minimum bitrate is used for video playing may be calculated, or the minimum bandwidth corresponding to the minimum bitrate may be queried through a resolution and bandwidth comparison table.
in the embodiment of the invention, the electronic equipment can determine the current bandwidth of the network according to the detection result by detecting the current bandwidth of the network.
The method for detecting the network bandwidth may be to detect the network transmission speed first, and then measure and calculate the current bandwidth of the network according to the detected network transmission speed.
And 103, determining a target code rate corresponding to the main display area according to the comparison result.
In the embodiment of the invention, when the comparison result represents that the minimum bandwidth required by the main display area is greater than the current bandwidth, the current bandwidth is not enough to support the main display area to play the video at the current display code rate of the main display area, and at the moment, the electronic equipment can obtain the maximum code rate corresponding to the current bandwidth; and then, determining the maximum code rate corresponding to the current bandwidth as a target code rate corresponding to the main display area, and playing the video in the main display area at the target code rate. Thus, the phenomenon of pause when a user watches the video file in the main display area can be avoided.
In the embodiment of the present invention, when the comparison result represents that the minimum bandwidth required by the main display area is greater than the current bandwidth, the electronic device may further adjust a resolution (hereinafter referred to as a first resolution) corresponding to the main display area, and generate a second resolution lower than the first resolution according to the adjustment result; for example, the first resolution is 1080P and the second resolution is 720P or 320P. Then, acquiring the maximum code rate corresponding to the second resolution; and determining the maximum code rate corresponding to the second resolution as the target code rate corresponding to the main display area, and playing the video in the main display area according to the target code rate.
Here, a corresponding relation table of the bandwidth and the code rate may be established in advance, and the maximum code rate corresponding to the second resolution may be obtained by querying the code rate corresponding to the second resolution in the corresponding relation table.
In addition, the resolution parameter in the present invention is not limited to a specific value as long as the second resolution is less than the first resolution.
In the embodiment of the invention, when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, the electronic device can also convert video information played from a display area in the electronic device into a plurality of pictures; and playing the plurality of pictures in a continuous playing manner in the slave display area, namely, carrying out dynamic picture display in a connected picture form in the slave display area. Because the bandwidth used when the picture is displayed is smaller than the bandwidth used when the video is played, the video content played from the display area is displayed in a dynamic picture mode, enough bandwidth can be provided for the main display area to support the video file played from the main display area, and the phenomenon of network blockage when the video file is played in the main display area is avoided.
Here, when the dynamic display is performed by using continuous pictures in the display area, the picture display frequency may be 1 picture per second or 2 pictures per 1 second, and the specific display number is not limited. The picture displayed in the display area is a screenshot of the corresponding video picture played from the display area.
In the embodiment of the present invention, when the comparison result indicates that the minimum bandwidth corresponding to the resolution of the main display area is less than or equal to the current bandwidth of the network, it indicates that the current bandwidth meets the playing requirement of the main display area, and therefore, the minimum bitrate corresponding to the resolution of the main display area can be directly determined as the target bitrate corresponding to the main display area.
In the embodiment of the present invention, when the comparison result represents that the minimum bandwidth corresponding to the resolution of the main display area is smaller than the current bandwidth of the network, the electronic device may further determine the number of the slave display areas and a bandwidth difference between the current bandwidth and the bandwidth of the main display area, and then determine the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference.
For example, the minimum bandwidth required for the main display area is BMaster and slaveRepresents; current bandwidth of network uses BDetection ofRepresents; determining a code rate from the display area by the following equation 1):
(Bdetection of-BMaster and slave)/N＝BFrom 1)
Where N is the number of slave display areas, BFromThe code rate of the secondary display area is obtained by inquiring the corresponding relation table of the bandwidth and the code rate from the available bandwidth of the display area.
In the embodiment of the present invention, when the comparison result indicates that the minimum bandwidth is smaller than the current bandwidth, the electronic device may further cache the video information played in the secondary display area according to the target code rate and the resolution corresponding to the primary display area, so as to obtain the cache file of the secondary display area.
Specifically, the user usually switches the master display area and the slave display area during the process of playing multiple paths of videos, and in order to reduce the video waiting time of the user after switching, when B isMaster and slaveIs less than BDetection ofIn this way, when the video in the slave display area is switched to the main display area for playing, the user can directly watch the video in the switched display area without waiting for the video buffering.
It should be further noted that, since the definition and bitrate of the main display area are higher than those of the slave display area, when the video of the slave display area is cached, the video file of the slave display area can be cached according to the definition and bitrate standards of the main display area.
Here, the video caching method in the slave display area may be referred to as backup streaming, and when the electronic device caches the video file in the slave display area in the backup streaming, the required bandwidth is referred to as BPrepare for. When B is presentMaster and slave+BPrepare forIs less than or equal to BDetection ofThe main display area can be adjustedPlaying the minimum code rate corresponding to the previous resolution, playing the video file from the display area at the code rate corresponding to the following formula 2), and caching the video file from the display area in a backup stream mode.
(BDetection of-BMaster and slave-BPrepare for)/N 2)；
According to the code rate adjusting method provided by the embodiment of the invention, when the main display area has the stuck phenomenon, the code rate corresponding to the resolution of the main display area can be increased, and the code rate corresponding to the resolution of the auxiliary display area is decreased, instead of setting the main display area and the auxiliary display area to be the uniform code rate, the stuck phenomenon when the bandwidth of the main display area does not meet the requirements of a user can be effectively avoided. On the other hand, the phenomenon of broadband resource waste caused when the current bandwidth meets the user requirement is also avoided.
Fig. 3 is a schematic structural diagram of a code rate adjusting device in the embodiment of the present invention, as shown in fig. 3, the device includes:
a determining unit 301, configured to determine a minimum bandwidth required by a main display area according to a minimum code rate corresponding to a resolution of the main display area in an electronic device; the target code rate corresponding to the main display area is determined according to the comparison result of the minimum bandwidth and the current bandwidth of the network;
a comparing unit 302, configured to compare the minimum bandwidth with a current bandwidth of the network.
In the embodiment of the present invention, the apparatus further includes: an acquisition unit 303;
the obtaining unit 303 is configured to obtain a maximum code rate corresponding to the current bandwidth when the comparison result indicates that the minimum bandwidth is greater than the current bandwidth;
the determining unit 301 is specifically configured to determine the maximum code rate corresponding to the current bandwidth as the target code rate corresponding to the main display area.
In the embodiment of the present invention, the apparatus further includes: an adjustment unit 304;
the adjusting unit 304 is configured to adjust a first resolution corresponding to the main display area and generate a second resolution lower than the first resolution when the comparison result indicates that the minimum bandwidth is greater than the current bandwidth;
an obtaining unit 303, further configured to obtain a maximum code rate corresponding to the second resolution;
the determining unit 301 is specifically further configured to determine the maximum code rate corresponding to the second resolution as the target code rate corresponding to the main display area.
In the embodiment of the present invention, the apparatus further includes: a conversion unit 305 and a playback unit 306;
specifically, the converting unit 305 is configured to convert video information displayed from a display area in the electronic device into a plurality of pictures when the comparison result indicates that the minimum bandwidth is greater than the current bandwidth;
the playing unit 306 is configured to play the plurality of pictures in the slave display area in a continuous playing manner.
In this embodiment of the present invention, the determining unit 301 is further specifically configured to determine the minimum code rate as a target code rate corresponding to the main display area when the comparison result indicates that the minimum bandwidth is less than or equal to the current bandwidth.
In this embodiment of the present invention, the determining unit 301 is further configured to determine, when the comparison result indicates that the minimum bandwidth is smaller than the current bandwidth, the number of slave display areas in the electronic device; and determining the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference between the current bandwidth and the bandwidth of the master display area.
In the embodiment of the present invention, the apparatus further includes: a buffer unit (not shown in fig. 3);
and the cache unit is used for caching the video information played in the secondary display area in the electronic equipment according to the target code rate and the resolution corresponding to the main display area when the comparison result represents that the minimum bandwidth is smaller than the current bandwidth, so as to obtain a cache file of the secondary display area.
It should be noted that: in the code rate adjustment apparatus provided in the foregoing embodiment, when the code rate corresponding to the resolution of the main display area and/or the sub display area of the electronic device is adjusted, only the division of the program modules is illustrated, and in practical applications, the processing allocation may be completed by different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules, so as to complete all or part of the processing described above. In addition, the embodiments of the code rate adjusting device and the code rate adjusting method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are detailed in the embodiments of the methods and are not described herein again.
Fig. 4 is a schematic structural diagram of a code rate adjusting apparatus 400 according to an embodiment of the present invention, where the code rate adjusting apparatus 400 may be a mobile phone, a computer, a digital broadcast terminal, an information transceiver device, a game console, a tablet device, a personal digital assistant, an information push server, a content server, and the like. The code rate adjustment apparatus 400 shown in fig. 4 comprises: at least one processor 401, memory 402, at least one network interface 404, and a user interface 403. The various components in the rate adjustment apparatus 400 are coupled together by a bus system 405. It is understood that the bus system 405 is used to enable connection communication between these components. The bus system 405 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 405 in fig. 4.
The user interface 403 may include, among other things, a display, a keyboard, a mouse, a trackball, a click wheel, a key, a button, a touch pad, or a touch screen.
It will be appreciated that the memory 402 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 402 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.
The memory 402 in the embodiment of the present invention is used for storing various types of data to support the operation of the rate adjustment apparatus 400. Examples of such data include: any computer program for operating on the rate adjustment device 400, such as an operating system 4021 and an application 4022; music data; animation data; book information; video, etc. The operating system 4021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is configured to implement various basic services and process hardware-based tasks. The application 4022 may include various applications such as a Media Player (Media Player), a Browser (Browser), and the like for implementing various application services. A program for implementing the method according to the embodiment of the present invention may be included in the application 4022.
The method disclosed in the above embodiments of the present invention may be applied to the processor 401, or implemented by the processor 401. The processor 401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The Processor 401 described above may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 401 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 402, and the processor 401 reads the information in the memory 402 and performs the steps of the aforementioned methods in conjunction with its hardware.
In an exemplary embodiment, the bitrate adjustment apparatus 400 can be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.
Wherein the memory is to store a computer program operable on the processor;
the processor is configured to, when running the computer program, execute: determining the minimum bandwidth required by a main display area according to the minimum code rate corresponding to the resolution of the main display area in the electronic equipment;
comparing the minimum bandwidth to a current bandwidth of a network;
and determining the target code rate corresponding to the main display area according to the comparison result.
The processor, when running the computer program, further executes: when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, acquiring the maximum code rate corresponding to the current bandwidth; and determining the maximum code rate corresponding to the current bandwidth as the target code rate corresponding to the main display area.
The processor, when running the computer program, further executes: when the comparison result indicates that the minimum bandwidth is larger than the current bandwidth, adjusting a first resolution corresponding to the main display area to generate a second resolution lower than the first resolution; acquiring the maximum code rate corresponding to the second resolution; and determining the maximum code rate corresponding to the second resolution as the target code rate corresponding to the main display area.
The processor, when running the computer program, further executes: when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, converting video information displayed from a display area in the electronic equipment into a plurality of pictures; and playing the plurality of pictures in a continuous playing mode in the slave display area.
The processor, when running the computer program, further executes: and when the comparison result represents that the minimum bandwidth is smaller than or equal to the current bandwidth, determining the minimum code rate as a target code rate corresponding to the main display area.
The processor, when running the computer program, further executes: determining the number of slave display areas in the electronic device; and determining the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference between the current bandwidth and the bandwidth of the master display area.
The processor, when running the computer program, further executes: and caching the video information played in the secondary display area in the electronic equipment according to the target code rate and the resolution corresponding to the main display area to obtain a cache file of the secondary display area.
The processor, when running the computer program, further executes: acquiring display positions corresponding to display areas in the electronic equipment; determining an area corresponding to a display position matched with a preset display position as the main display area;
or receiving a region selection instruction sent by the electronic equipment; responding to the area selection instruction, and determining a display area corresponding to the area selection instruction as the main display area.
In an exemplary embodiment, the present invention further provides a computer-readable storage medium, such as a memory 402, comprising a computer program, which is executable by a processor 401 of the code rate adjusting apparatus 400 to perform the steps of the foregoing method. The computer readable storage medium can be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, performs: determining the minimum bandwidth required by a main display area according to the minimum code rate corresponding to the resolution of the main display area in the electronic equipment; comparing the minimum bandwidth to a current bandwidth of a network; and determining the target code rate corresponding to the main display area according to the comparison result.
The computer program, when executed by the processor, further performs: when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, acquiring the maximum code rate corresponding to the current bandwidth; and determining the maximum code rate corresponding to the current bandwidth as the target code rate corresponding to the main display area.
The computer program, when executed by the processor, further performs: when the comparison result indicates that the minimum bandwidth is larger than the current bandwidth, adjusting a first resolution corresponding to the main display area to generate a second resolution lower than the first resolution; acquiring the maximum code rate corresponding to the second resolution; and determining the maximum code rate corresponding to the second resolution as the target code rate corresponding to the main display area.
The computer program, when executed by the processor, further performs: when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, converting video information displayed from a display area in the electronic equipment into a plurality of pictures; and playing the plurality of pictures in a continuous playing mode in the slave display area.
The computer program, when executed by the processor, further performs: and when the comparison result represents that the minimum bandwidth is smaller than or equal to the current bandwidth, determining the minimum code rate as a target code rate corresponding to the main display area.
The computer program, when executed by the processor, further performs: when the comparison result represents that the minimum bandwidth is smaller than the current bandwidth, determining the number of slave display areas in the electronic equipment; and determining the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference between the current bandwidth and the bandwidth of the master display area.
The computer program, when executed by the processor, further performs: and when the comparison result represents that the minimum bandwidth is smaller than the current bandwidth, caching the video information played in the secondary display area in the electronic equipment according to the target code rate and the resolution corresponding to the main display area to obtain a cache file of the secondary display area.
The computer program, when executed by the processor, further performs: acquiring display positions corresponding to display areas in the electronic equipment; determining an area corresponding to a display position matched with a preset display position as the main display area;
or receiving a region selection instruction sent by the electronic equipment; responding to the area selection instruction, and determining a display area corresponding to the area selection instruction as the main display area.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (9)
1. A method of code rate adjustment, the method comprising:
determining a minimum bandwidth required by a main display area according to a minimum code rate corresponding to the resolution of the main display area in electronic equipment, wherein the display area of the electronic equipment comprises the main display area and at least one auxiliary display area;
comparing the minimum bandwidth to a current bandwidth of a network;
determining a target code rate corresponding to the main display area according to the comparison result;
after the comparing the minimum bandwidth to the current bandwidth of the network, the method further comprises:
when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, converting video information displayed from a display area in the electronic equipment into a plurality of pictures;
when the comparison result represents that the minimum bandwidth is smaller than the current bandwidth, determining the number of the slave display areas in the electronic equipment; and determining the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference between the current bandwidth and the bandwidth of the master display area.
2. The method of claim 1, wherein determining the target bitrate corresponding to the main display area according to the comparison result comprises:
when the comparison result represents that the minimum bandwidth is larger than the current bandwidth, acquiring the maximum code rate corresponding to the current bandwidth;
and determining the maximum code rate corresponding to the current bandwidth as the target code rate corresponding to the main display area.
3. The method of claim 1, wherein determining the target bitrate corresponding to the main display area according to the comparison result comprises:
when the comparison result indicates that the minimum bandwidth is larger than the current bandwidth, adjusting a first resolution corresponding to the main display area to generate a second resolution lower than the first resolution;
acquiring the maximum code rate corresponding to the second resolution;
and determining the maximum code rate corresponding to the second resolution as the target code rate corresponding to the main display area.
4. The method of claim 1, further comprising: and playing the plurality of pictures in a continuous playing mode in the slave display area.
5. The method of claim 1, wherein determining the target bitrate corresponding to the main display area according to the comparison result comprises:
and when the comparison result represents that the minimum bandwidth is smaller than or equal to the current bandwidth, determining the minimum code rate as a target code rate corresponding to the main display area.
6. The method of claim 5, when the comparison result characterizes that the minimum bandwidth is less than the current bandwidth, the method further comprising:
and caching the video information played in the secondary display area in the electronic equipment according to the target code rate and the resolution corresponding to the main display area to obtain a cache file of the secondary display area.
7. The method of claim 1, further comprising:
acquiring display positions corresponding to display areas in the electronic equipment; determining an area corresponding to a display position matched with a preset display position as the main display area;
or receiving a region selection instruction sent by the electronic equipment; responding to the area selection instruction, and determining a display area corresponding to the area selection instruction as the main display area.
8. An apparatus for rate adjustment, the apparatus comprising:
the determining unit is used for determining the minimum bandwidth required by the main display area according to the minimum code rate corresponding to the resolution of the main display area in the electronic equipment; the target code rate corresponding to the main display area is determined according to the comparison result of the minimum bandwidth and the current bandwidth of the network; the display area of the electronic equipment comprises the main display area and at least one auxiliary display area;
a comparing unit, configured to compare the minimum bandwidth with a current bandwidth of a network;
the determining unit is further configured to convert video information displayed from a display area in the electronic device into a plurality of pictures when the comparison result indicates that the minimum bandwidth is greater than the current bandwidth; when the comparison result represents that the minimum bandwidth is smaller than the current bandwidth, determining the number of the slave display areas in the electronic equipment; and determining the code rate of the slave display area according to the number of the slave display areas and the bandwidth difference between the current bandwidth and the bandwidth of the master display area.
9. A code rate adjustment apparatus includes a memory and a processor;
wherein the memory is to store a computer program operable on the processor;
the processor, when executing the computer program, is configured to perform the steps of the method of any of claims 1 to 7.
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| CN111602389B (en) * | 2019-07-23 | 2022-06-03 | 深圳市大疆创新科技有限公司 | Code stream transmission control method, device and computer readable storage medium |
| CN110650341A (en) * | 2019-09-29 | 2020-01-03 | 华为终端有限公司 | Video interaction method and related equipment |
| CN110784745B (en) * | 2019-11-26 | 2021-12-07 | 科大讯飞股份有限公司 | Video transmission method, device, system, equipment and storage medium |
| CN111866586B (en) * | 2020-07-28 | 2022-08-02 | 精英数智科技股份有限公司 | Underground video data processing method and device, electronic equipment and storage medium |
| CN113242438A (en) * | 2021-04-12 | 2021-08-10 | 郑州阿帕斯数云信息科技有限公司 | Video data transmission method and device |
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