WO2023284489A1

WO2023284489A1 - Definition switching method and device for webcast, and client

Info

Publication number: WO2023284489A1
Application number: PCT/CN2022/099774
Authority: WO
Inventors: 陈迪川
Original assignee: 北京字节跳动网络技术有限公司
Priority date: 2021-07-13
Filing date: 2022-06-20
Publication date: 2023-01-19
Also published as: CN115623228A

Abstract

The present invention relates to a definition switching method and device for a webcast, and a client. The definition switching method comprises: in the playback process of a webcast, determining uplink bandwidth and a first definition level of the webcast; when the uplink bandwidth of the webcast does not match the first definition level within a preset duration, adjusting definition parameters of the webcast on the basis of a second definition level matching the uplink bandwidth of the webcast, the first definition level being different from the second definition level, and the definition parameters of the webcast being used for adjusting the definition of the webcast; sending adjusted definition parameters of the webcast to a server; and receiving a live audio and video stream corresponding to the adjusted definition parameters of the webcast from the server, and playing back the live audio and video stream.

Description

Definition switching method, device and client for webcast

Cross References to Related Applications

This application is based on the application with the Chinese application number 202110791858.4 and the application date is July 13, 2021, and claims its priority. The disclosure content of the Chinese application is hereby incorporated into this application as a whole.

technical field

The present disclosure relates to the field of live broadcast technology, and in particular, to a method, device and client for network live broadcast definition switching.

Background technique

With the continuous development of computer technology, webcasting is widely used in user sharing and commercial promotion due to its advantages of convenience and speed, good display effect, low cost and strong interaction.

After a webcast is enabled, the client can send the definition parameter of the webcast to the server corresponding to the content delivery network (CDN), so that the server corresponding to the CDN can send the definition parameter of the webcast to the client Corresponding live audio and video streams, so that the client can play the live audio and video streams to realize the display process of the webcast.

Contents of the invention

In a first aspect, the present disclosure provides a method for switching the definition of a webcast, including:

During the playback of a webcast, determine the uplink bandwidth and the first definition level of the webcast, where the first definition level is the current definition level of the webcast;

When the uplink bandwidth of the webcast does not match the first definition level within the preset duration, adjust the definition parameters of the webcast based on the second definition level matched by the uplink bandwidth of the webcast. The definition level is different from the second definition level, and the definition parameter of the webcast is used to adjust the definition of the webcast;

Send the adjusted definition parameter of the webcast to the server;

The live audio and video stream corresponding to the adjusted definition parameter of the live network broadcast is received from the server, and the live audio and video stream is played.

In one possible design, the method also includes:

When the upstream bandwidth of the webcast is less than the minimum bit rate in the first definition level within the preset duration, reduce the first definition level by one level to obtain the third definition level;

When the uplink bandwidth of the webcast matches the third definition level, determine that the second definition level is the third definition level;

When the uplink bandwidth of the webcast does not match the third definition level, repeat the update of the third definition level to the definition level after the third definition level is lowered by one level, and determine the uplink of the webcast The step of whether the bandwidth matches the third definition gear, until the upstream bandwidth of the webcast matches the third definition gear, and determine that the second definition gear is the third definition gear matching the upstream bandwidth, or, Until the third definition level is the lowest definition level of the webcast, and the second definition level is determined to be the third definition level equal to the lowest definition level.

In one possible design, the method also includes:

When the upstream bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition gear within the preset duration, the first definition gear is increased by one gear to obtain the fourth definition gear;

When the uplink bandwidth of the webcast matches the fourth definition level, determine that the second definition level is the fourth definition level;

When the uplink bandwidth of the webcast does not match the fourth definition level, repeat the update of the fourth definition level to the definition level after adding one level to the fourth definition level, and determine the uplink of the webcast The step of whether the bandwidth matches the fourth definition gear, until the uplink bandwidth of the webcast matches the fourth definition gear, and determine that the second definition gear is the fourth definition gear matching the uplink bandwidth, or, Until the fourth definition level is the highest definition level of the webcast, and the second definition level is determined to be the fourth definition level equal to the highest definition level.

In a possible design, determining the uplink bandwidth of the webcast includes:

Collect the actual code rate of the live broadcast;

Based on the actual code rate of the live network, calculate the uplink bandwidth of the live network.

In a possible design, the method further includes: storing the second definition level.

In one possible design, the method also includes:

After the webcast is re-broadcasted, determine the first definition level as the second definition level; and determine the definition parameters of the webcast based on the second definition level;

Send the clarity parameters of the webcast to the server;

Receive the live audio and video stream corresponding to the definition parameter of the network live broadcast from the server, and play the live audio and video stream.

In a possible design, the definition parameter of the webcast includes: at least one of bit rate, resolution or frame rate.

In a possible design, the definition switching method further includes: when the uplink bandwidth of the live network broadcast is less than the minimum bit rate in the first definition level within the preset duration, reducing the first definition level by one According to the third definition level and the uplink bandwidth of the webcast, the second definition level is determined.

In a possible design, the definition switching method further includes: when the uplink bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition stage within the preset duration, increasing the first definition stage by one According to the fourth definition level and the uplink bandwidth of the webcast, the second definition level is determined.

In a possible design, the client may be the client of the broadcast user or the client of the broadcast user.

In a second aspect, the present disclosure provides a device for switching the definition of live webcast, including:

The determination module is used to determine the uplink bandwidth and the first definition level of the network live broadcast during the broadcasting process of the network live broadcast, and the first definition level is the current definition level of the network live broadcast;

The adjustment module is used to adjust the definition parameters of the live network based on the second definition level matched by the uplink bandwidth of the live network when the uplink bandwidth of the live network does not match the first definition level within the preset duration. To adjust, the first definition level is different from the second definition level, and the definition parameter of the webcast is used to adjust the definition of the webcast;

A sending module, configured to send the adjusted definition parameter of the webcast to the server;

The receiving module is used to receive from the server the live audio and video stream corresponding to the adjusted definition parameter of the live network broadcast;

The playback module is used to play live audio and video streams.

In a possible design, the determination module is further configured to lower the first definition level by one level when the uplink bandwidth of the live network broadcast is less than the minimum bit rate in the first definition level within a preset time period to get the third definition gear; when the uplink bandwidth of the webcast matches the third definition level, determine the second definition level as the third definition level; when the uplink bandwidth of the webcast does not match the third When the definition level is selected, repeat the update of the third definition level to the definition level after the third definition level is lowered by one level, and judge whether the uplink bandwidth of the webcast matches the third definition level. Step, until the uplink bandwidth of the webcast matches the third definition level, and determine that the second definition level is the third definition level matching the uplink bandwidth, or until the third definition level is the webcast up to the lowest definition level, and determine that the second definition level is the third definition level equal to the lowest definition level.

In a possible design, the determining module is further configured to increase the first definition level by one level when the uplink bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within the preset duration bit, to get the fourth definition gear; when the uplink bandwidth of the webcast matches the fourth definition gear, determine the second definition gear as the fourth definition gear; When the definition level is selected, repeat the update of the fourth definition level to the definition level after adding one level to the fourth definition level, and determine whether the uplink bandwidth of the webcast matches the fourth definition level. Step, until the uplink bandwidth of the webcast matches the fourth definition level, and determine that the second definition level is the fourth definition level matching the uplink bandwidth, or until the fourth definition level is the webcast up to the highest definition level, and determine that the second definition level is the fourth definition level equal to the highest definition level.

In a possible design, the determination module is specifically used to collect the actual code rate of the live network; based on the actual code rate of the live network, the uplink bandwidth of the live network is calculated.

In a possible design, the device further includes: a storage module, configured to store the second definition level.

In a possible design, the determination module is also used to obtain the second definition level from the storage module after the webcast is broadcast again; based on the second definition level, determine the definition parameter of the webcast;

The sending module is also used to send the clarity parameter of the webcast to the server;

The receiving module is also used to receive from the server the live audio and video stream corresponding to the definition parameter of the live network broadcast;

The playback module is also used to play live audio and video streams.

In a possible design, the determination module is also used to lower the first definition level by one level when the uplink bandwidth of the live network broadcast is less than the minimum bit rate in the first definition level within the preset duration , to obtain the third definition level; according to the third definition level and the upstream bandwidth of the webcast, determine the second definition level.

In a possible design, the determination module is also used to increase the first definition level by one level when the uplink bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within the preset duration , to obtain the fourth definition level; according to the fourth definition level and the uplink bandwidth of the webcast, determine the second definition level. In a third aspect, the present disclosure provides a client, including: a memory; and a processor coupled to the memory, where the processor is configured to execute the first aspect and the method based on instructions stored in the memory. In the first aspect, any possible design of a resolution switching method for webcasting.

In a fourth aspect, the present disclosure provides a non-transitory computer storage medium, including computer instructions. When the computer instructions are run on an electronic device, the electronic device executes the first aspect and any possible design of the first aspect. The method for switching the definition of webcast.

In a fifth aspect, the present disclosure provides a non-transitory computer program product. When the computer program product is run on a computer, the computer executes the clarity of the webcast in any possible design of the first aspect and the first aspect. Switch method.

In a sixth aspect, the present disclosure provides a computer program, including instructions, which, when executed by a processor, cause the processor to execute the webcast in any possible design of the first aspect and the first aspect resolution switching method.

In a seventh aspect, the present disclosure provides a chip system, which is applied to an electronic device including a display, a memory, and a sensor; the chip system includes: a processor; when the processor executes a computer instruction stored in the memory, the electronic device executes the first A method for switching the definition of live webcast in any possible design of the first aspect and the first aspect.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, In other words, other drawings can also be obtained from these drawings without paying creative labor.

FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present disclosure;

FIG. 2 is a signaling interaction diagram of a definition switching method for live webcast provided by an embodiment of the present disclosure;

FIG. 3 is a schematic flowchart of a method for switching the definition of a live network broadcast provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a resolution switching device for webcast provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of an apparatus for switching a definition of a live network broadcast provided by an embodiment of the present disclosure.

detailed description

In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

After analysis, the inventor found that the network environment in which the webcast is located is not static, but in a fluctuating state. Moreover, the clarity of the webcast depends on the definition parameters of the webcast. Therefore, with the change of the network environment, how to maintain the best definition of the network live broadcast by adjusting the definition parameters of the network live broadcast is an urgent problem to be solved.

Exemplarily, the present disclosure provides a method, device, client, computer storage medium, and computer program product for switching the resolution of a webcast, which can be based on the uplink network status of the network environment where the webcast is located within a continuous preset period of time, Select the most suitable definition parameters for webcast, so that live audio and video streams can be switched to the best definition, and avoid affecting the user's viewing experience.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present disclosure. As shown in FIG. 1 , the communication system provided by the present disclosure may include: a server and a client, and the server and the client may communicate with each other.

The client can be installed in the electronic device, and the client can realize the definition switching method of the webcast in the present disclosure through an application program (APP), a public account, a web page, etc. in the electronic device.

The electronic device can be a mobile phone, tablet computer, wearable device, vehicle-mounted device, augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, notebook computer, ultra-mobile personal computer (ultra-mobile personal computer, UMPC) ), netbooks, personal digital assistants (personal digital assistants, PDAs), smart TVs, smart screens, high-definition TVs, 4K TVs, smart speakers, smart projectors and other devices, this disclosure does not impose any restrictions on the specific types of electronic devices.

The present disclosure does not limit the type of the operating system of the electronic device. For example, Android system, Linux system, Windows system, iOS system, etc.

Based on the foregoing description, the present disclosure takes the client and the server in FIG. 1 as an example, and describes the definition switching method for webcast provided by the present disclosure in detail in combination with the accompanying drawings and application scenarios.

Please refer to FIG. 2 . FIG. 2 is a signaling interaction diagram of a method for switching a definition of a live network broadcast provided by an embodiment of the present disclosure. As shown in FIG. 2 , the method for switching the definition of the webcast provided by the present disclosure may include:

S101. During the playing process of a live network broadcast, the client determines the uplink bandwidth and the first definition level of the live network broadcast.

The client can play a webcast, and the present disclosure does not limit parameters such as the type, content, and display mode of the webcast. During the playing process of the webcast, the client can collect the actual code rate of the webcast, and calculate the uplink bandwidth (that is, the transmission rate) of the webcast based on the actual bitrate of the webcast.

The present disclosure does not limit parameters such as time and method for the client to collect the actual code rate of the webcast.

In some embodiments, after receiving the instruction output by the user, the client may collect the actual code rate of the webcast in real time, periodically or aperiodically.

For example, after receiving an operation instruction from the anchor user to select to switch the definition of the webcast on the screen of the electronic device, the client can collect the actual bit rate of the webcast.

In some other embodiments, the client can spontaneously realize the real-time, periodic or non-periodic collection of the actual bit rate of the webcast.

It should be noted that, in addition to the above methods, the client can also collect the frame rate and resolution of the webcast, and calculate the uplink bandwidth of the webcast. This disclosure does not limit the method of determining the uplink bandwidth of the webcast .

In the present disclosure, the client may be the client of the broadcast user or the client of the broadcast user, which is not limited in the present disclosure. Relatively speaking, the anchor user is the creator or publisher of the live audio and video stream, and the anchor user can send the live audio and video stream to the CDN server through the client. The aforementioned process can be called streaming. The broadcasting user is the viewer of the live audio and video stream, and the broadcasting user can obtain the live audio and video stream from the CDN server through the client. The aforementioned process can be called streaming. Based on the above description, the client can obtain live audio and video streams, and the client can divide the resolution into multiple gears in advance, each gear is a bit rate range, and the bit rate range of each gear is equal to different, and each gear corresponds to a range of each parameter in the sharpness parameter.

The present disclosure does not limit the specific implementation manner of the definition level. In some embodiments, the multiple definition levels may include: ultra high definition (ultra high definition, UHD) 1080P, high definition (High Definition, HD) 720P, standard definition (standard definition, SD) 540P and common definition (LD) 480P .

In some embodiments, the client can use JSON (JavaScript Object Notation, JS Object Notation) to set the software program for the above-mentioned clarity level.

To sum up, the client can know that the current definition level of the webcast is the first definition level.

S102. When the uplink bandwidth of the live webcast does not match the first definition level within the preset time period, the client performs the definition parameters of the live webcast based on the second definition level matched by the uplink bandwidth of the live webcast. Adjustment.

Because the uplink bandwidth of the webcast can indicate the uplink network status corresponding to the network environment where the webcast is located. Therefore, the client can determine whether the uplink bandwidth of the webcast matches the first definition level.

The match mentioned in this disclosure can be understood as the uplink bandwidth of the webcast is included in the bit rate range of the first definition level, and the mismatch can be understood as the uplink bandwidth of the webcast is not included in the bit rate range of the first definition level. within the bit rate range.

When whether the uplink bandwidth of the webcast matches the first definition level, the network environment where the webcast is located fluctuates. Therefore, the client can continue to judge whether the uplink bandwidth of the webcast does not match the first definition level within the preset duration, avoiding the problem of affecting the playback effect of the webcast due to frequent switching of the definition parameters of the webcast question.

The specific value of the preset duration mentioned in the present disclosure may be set based on the client and/or server in combination with the webcast and the current actual situation, which is not limited in the present disclosure.

When the uplink bandwidth of the live webcast does not match the first definition level within the preset duration, the client may determine that the first definition level cannot meet the network environment where the webcast is located. Therefore, the client can determine the matching second definition level based on the uplink bandwidth of the webcast. The first sharpness level is different from the second sharpness level.

Therefore, the client can adjust the definition parameter of the webcast based on the second definition level, and obtain the adjusted definition parameter of the webcast.

The clarity parameter of the webcast is used to adjust the clarity of the webcast. The present disclosure does not limit the specific implementation manner of the clarity parameter of the webcast. In some embodiments, the definition parameter of the webcast may include: at least one of bit rate, resolution or frame rate. The bit rate can be calculated from the resolution and frame rate.

S103. The client sends the adjusted definition parameter of the webcast to the server.

S104. The server determines a live audio and video stream corresponding to the adjusted definition parameter of the web live broadcast.

S105. The server sends the live audio and video stream corresponding to the adjusted definition parameter of the web live broadcast to the client.

S106. The client plays the live audio and video stream.

The client can carry the adjusted definition parameter of the webcast in a request, and send the request to the server, so that after receiving the request, the server can determine the output based on the adjusted definition parameter of the webcast. Live audio and video streams corresponding to the adjusted definition parameters of the webcast. The server can carry the live audio and video stream in a response, and send the response to the client.

Therefore, the client can play the live audio and video stream, so that the clarity of the webcast can be switched to the best state, which fits the network environment where the webcast is located, and ensures the user's viewing experience.

The present disclosure does not limit parameters such as format and size of the live audio and video stream. In addition, in addition to the request and response methods, the client and server can also use other methods for data transmission. For example, the client can send the identifier of the adjusted definition parameter of the live network broadcast to the server, so that the server can determine the live audio and video stream based on the identifier. The server can send the storage address of the live audio and video stream to the client, so that the client downloads the live audio and video stream based on the storage address.

The definition switching method of the webcast provided by the present disclosure, through the broadcasting process of a webcast, the client can determine the uplink bandwidth and the first definition level of the webcast, and the first definition level is the resolution of the webcast. Current resolution level. When the uplink bandwidth of the webcast does not match the first definition level within the preset duration, the client base adjusts the definition parameters of the webcast based on the second definition level matched by the uplink bandwidth of the webcast , the first definition level is different from the second definition level, and the definition parameter of the webcast is used to adjust the definition of the webcast. The client can send the adjusted definition parameter of the webcast to the server, so that the server sends the live audio and video stream corresponding to the adjusted definition parameter of the webcast to the client, so that the client can play the live audio and video stream. Therefore, based on the uplink network status corresponding to the network environment where the webcast is located within a continuous preset period of time, the most suitable definition parameters are selected for the webcast, so that the definition of the webcast can be switched to the best state, and avoid The phenomenon of freezing caused by switching too frequently is conducive to improving the user's viewing experience.

Based on the description of the embodiment in step S102, the client may determine the second definition level matched by the uplink bandwidth of the webcast in various ways.

In some embodiments, when the uplink bandwidth of the webcast is less than the minimum bit rate in the first definition level within the preset duration, the first definition level is lowered by one level to obtain the third definition level bit; determine the second definition level according to the third definition level and the uplink bandwidth of the webcast.

In some embodiments, when the uplink bandwidth of the webcast is greater than the maximum bit rate in the first definition level within the preset duration, the first definition level is increased by one level to obtain the fourth definition level bit; determine the second definition level according to the fourth definition level and the uplink bandwidth of the webcast.

Next, with reference to FIG. 3 , the present disclosure takes the client in FIG. 1 as an example to describe in detail the specific implementation manner for the client to determine the second definition level.

Please refer to FIG. 3 . FIG. 3 is a schematic flowchart of a method for switching the definition of a live network broadcast provided by an embodiment of the present disclosure. As shown in FIG. 3 , the method for switching the definition of the webcast provided by the present disclosure may include:

S200. The client determines the uplink bandwidth of the webcast.

S201. The client determines whether the uplink bandwidth of the webcast does not match the first definition level within a preset time period.

If yes, the electronic device can execute steps S2021-S2024 or steps S2031-S2034; if not, the electronic device can continue to execute step S200.

S2021. When the uplink bandwidth of the webcast is less than the minimum bit rate in the first definition level within the preset duration, the client lowers the first definition level by one level to obtain the third definition level.

S2022. The client terminal judges whether the uplink bandwidth of the webcast matches the third definition level.

If yes, the client can execute step S2023; if not, the client can execute step S2024.

S2023. The client determines that the second definition level is the third definition level.

S2024. The client updates the third definition level to the third definition level lowered by one level, and executes step S2022 until the uplink bandwidth of the webcast matches the third definition level, or , the third definition level is the lowest definition level of the webcast.

When the third definition level is the lowest definition level of the webcast, step S2023 is also performed, that is, it is determined that the second definition level is the lowest definition level.

S2031. When the uplink bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within the preset duration, the client increases the first definition level by one level to obtain the fourth definition level.

S2032. The client terminal judges whether the uplink bandwidth of the network live broadcast matches the fourth definition gear.

If yes, the client can execute step S2033; if not, the client can execute step S2034.

S2033. The client determines that the second definition level is the fourth definition level.

S2034. The client updates the fourth definition level to the definition level after the fourth definition level is increased by one level, and executes step S2032 until the uplink bandwidth of the webcast matches the fourth definition level, or , the fourth definition gear is the highest definition gear of the webcast.

When the third definition level is the lowest definition level of the webcast, step S2033 is also executed, that is, it is determined that the second definition level is the highest definition level.

To sum up, the client can determine the second definition level corresponding to the uplink bandwidth of the webcast one by one, so as to accurately determine the definition parameters of the webcast based on the second definition level, which improves the quality of the network live broadcast. clarity of the network environment.

Based on the description of the above embodiments, the client may also store the second definition level. The present disclosure does not limit the storage manner of the second definition level. Thus, after the live webcast starts broadcasting again, the client can determine that the first definition level is the second definition level, and based on the second definition level, can determine the definition parameters of the webcast.

Therefore, the client can send the clarity parameter of the webcast to the server. The server then sends the live audio and video streams corresponding to the definition parameters of the webcast to the client, so that the client can play the live audio and video streams and realize the smooth playback of the webcast.

Exemplarily, the present disclosure provides an apparatus for switching the definition of live webcast.

Please refer to FIG. 4 . FIG. 4 is a schematic structural diagram of an apparatus for switching a definition of a live network broadcast provided by an embodiment of the present disclosure. The apparatus for switching the resolution of the live webcast of the present disclosure can be set in an electronic device, and can realize that the method for switching the resolution of the live webcast in the above-mentioned embodiments of FIGS. 1-3 corresponds to the operation of the electronic device.

As shown in FIG. 4 , the apparatus 100 for switching the definition of live webcast provided by the present disclosure may include: a determining module 101 , an adjusting module 102 , a sending module 103 , a receiving module 104 and a playing module 105 .

The determination module 101 is used to determine the upstream bandwidth and the first definition level of the network live broadcast during the broadcasting process of the network live broadcast, and the first definition level is the current definition level of the network live broadcast;

The adjustment module 102 is configured to adjust the definition of the network live broadcast based on the second definition gear matched by the uplink bandwidth of the network live broadcast when the uplink bandwidth of the network live broadcast does not match the first definition level within the preset duration. The parameters are adjusted, the first definition level is different from the second definition level, and the definition parameter of the webcast is used to adjust the definition of the webcast;

Sending module 103, is used for sending the sharpness parameter of the network live broadcast after adjusting to server;

The receiving module 104 is also used to receive from the server the live audio and video stream corresponding to the adjusted definition parameter of the live network broadcast;

The playback module 105 is configured to play live audio and video streams.

In some embodiments, the determining module 101 is further configured to lower the first definition level by one level when the uplink bandwidth of the live network broadcast is less than the minimum bit rate in the first definition level within the preset duration , get the third definition gear; when the uplink bandwidth of the webcast matches the third definition level, determine the second definition level as the third definition level; if the uplink bandwidth of the webcast does not match the third definition level When the resolution level is not specified, repeat the steps of updating the third definition level to the third definition level lowered by one level, and judging whether the uplink bandwidth of the webcast matches the third definition level , until the uplink bandwidth of the webcast matches the third resolution level, and determine that the second definition level is the third definition level that matches the uplink bandwidth, or until the third definition level is the third definition level of the webcast until the lowest definition level, and determine that the second definition level is the third definition level equal to the lowest definition level.

In some embodiments, the determining module 101 is further configured to increase the first definition level by one level when the uplink bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within the preset duration , to get the fourth definition gear; when the uplink bandwidth of the webcast matches the fourth definition level, determine the second definition level as the fourth definition level; if the uplink bandwidth of the webcast does not match the fourth definition level When the resolution level is higher, repeat the steps of updating the fourth definition level to the definition level after adding one level to the fourth definition level, and judging whether the uplink bandwidth of the webcast matches the fourth definition level , until the uplink bandwidth of the webcast matches the fourth definition level, and determine that the second definition level is the fourth definition level that matches the uplink bandwidth, or until the fourth definition level is the fourth definition level of the webcast up to the highest definition level, and determine that the second definition level is the fourth definition level equal to the highest definition level.

In some embodiments, the determination module 101 is specifically configured to collect the actual code rate of the live network; based on the actual code rate of the live network, calculate the uplink bandwidth of the live network.

In a possible design, the determination module 101 is specifically configured to lower the first definition level by one level when the uplink bandwidth of the live network broadcast is less than the minimum bit rate in the first definition level within a preset time period bit to get the third definition level; according to the third definition level and the uplink bandwidth of the webcast, determine the second definition level.

In a possible design, the determination module 101 is specifically configured to increase the first definition level by one level when the uplink bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within a preset time period bit to get the fourth definition level; according to the fourth definition level and the uplink bandwidth of the webcast, determine the second definition level.

Please refer to FIG. 5 . FIG. 5 is a schematic structural diagram of an apparatus for switching a definition of a live network broadcast provided by an embodiment of the present disclosure. As shown in FIG. 5 , on the basis of the structure of the device shown in FIG. 4 , the network live broadcast definition switching device 100 provided by the present disclosure may further include: a storage module 106 .

The storage module 106 is configured to store the second definition level.

In some embodiments, the determining module 101 is further configured to determine that the first definition level is the second definition level; and based on the second definition level, determine the definition parameter of the webcast;

The sending module 103 is also used to send the clarity parameter of the webcast to the server;

The receiving module 104 is also used to receive from the server the live audio and video stream corresponding to the clarity parameter of the live network broadcast;

The playback module 105 is also used to play live audio and video streams.

In some embodiments, the definition parameter of the webcast includes: at least one of bit rate, resolution or frame rate.

The resolution switching device for network live broadcast provided by the present disclosure can execute the above-mentioned method embodiments. For the specific implementation principles and technical effects, please refer to the above-mentioned method embodiments, and the present disclosure will not repeat them here.

Exemplarily, the present disclosure provides a client, including: a memory; and a processor coupled to the memory, where the processor is configured to execute the network method of the foregoing embodiments based on instructions stored in the memory. The definition switching method of the live broadcast.

In some embodiments, the client may be the client of the broadcast user or the client of the broadcast user.

Exemplarily, the present disclosure provides a chip system, which is applied to an electronic device including a display, a memory, and a sensor; the chip system includes: a processor; when the processor executes the computer instructions stored in the memory, the electronic device executes the foregoing implementation An example of a resolution switching method for webcasting.

Exemplarily, the present disclosure provides a non-transitory computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to enable an electronic device to implement the definition switching method for network live broadcasting in the foregoing embodiments.

Exemplarily, the present disclosure provides a non-transitory computer program product, which, when the computer program product is run on a computer, causes the computer to execute the method for switching the definition of a live network broadcast in the foregoing embodiments.

Exemplarily, the present disclosure provides a computer program, including instructions, which, when executed by a processor, cause the processor to execute the definition switching method for network live broadcasting in the foregoing embodiments.

In the above embodiments, all or part of the functions may be implemented by software, hardware, or a combination of software and hardware. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present disclosure are produced in whole or in part. A computer can be a general purpose computer, special purpose computer, computer network, or other programmable device. Computer instructions may be stored on a computer readable storage medium. The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, a data center, etc. integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)), etc.

It should be noted that in this article, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these No such actual relationship or order exists between entities or operations. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only specific implementation manners of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A definition switching method for webcast, applied to a client, comprising:

During the broadcasting process of a webcast, determine the uplink bandwidth and the first definition level of the webcast, and the first definition level is the current definition level of the webcast;

When the uplink bandwidth of the webcast does not match the first definition level within the preset duration, based on the second definition level matched by the uplink bandwidth of the webcast, the webcast The definition parameter is adjusted, the first definition level is different from the second definition level, and the definition parameter of the webcast is used to adjust the definition of the webcast;

sending the adjusted definition parameter of the webcast to the server;

receiving a live audio and video stream corresponding to the adjusted definition parameter of the live network broadcast from the server, and playing the live audio and video stream.
The definition switching method according to claim 1, further comprising: when the uplink bandwidth of the live network broadcast is less than the minimum bit rate in the first definition level within the preset duration, setting the The first sharpness gear is lowered by one gear, and the third sharpness gear is obtained;

When the uplink bandwidth of the webcast matches the third definition level, determine that the second definition level is the third definition level;

When the uplink bandwidth of the webcast does not match the third definition level, repeatedly perform updating the third definition level to a definition level lowered by one level from the third definition level bit, and the step of judging whether the uplink bandwidth of the webcast matches the third definition level, until the uplink bandwidth of the webcast matches the third definition level, and determines the second definition level The bit is the third definition level matching the upstream bandwidth, or until the third definition level is the lowest definition level of the webcast, and the second definition level is determined to be equal to The third resolution of the lowest resolution.
The definition switching method according to claim 1, further comprising:

When the upstream bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within the preset duration, increase the first definition level by one level to obtain the fourth definition level degree gear;

When the uplink bandwidth of the webcast matches the fourth definition level, determine that the second definition level is the fourth definition level;

When the uplink bandwidth of the webcast does not match the fourth definition level, repeatedly perform updating the fourth definition level to the definition level after adding one level to the fourth definition level bit, and the step of judging whether the uplink bandwidth of the webcast matches the fourth definition level, until the uplink bandwidth of the webcast matches the fourth definition level, and determines the second definition level The bit is the fourth definition level matching the uplink bandwidth, or until the fourth definition level is the highest definition level of the webcast, and the second definition level is determined to be equal to The fourth resolution of the highest resolution.
The definition switching method according to any one of claims 1-3, wherein said determining the uplink bandwidth of said webcast includes:

Collecting the actual code rate of the webcast;

Based on the actual code rate of the network live broadcast, the uplink bandwidth of the network live broadcast is calculated.
The definition switching method according to any one of claims 1-4, further comprising:

The second resolution level is stored.
The definition switching method according to claim 5, further comprising:

After the webcast starts broadcasting again, acquire the second definition level;

Determining the definition parameter of the webcast based on the second definition level;

sending the clarity parameter of the webcast to the server;

receiving a live audio and video stream corresponding to the definition parameter of the live network broadcast from the server, and playing the live audio and video stream.
The definition switching method according to any one of claims 1-6, wherein the definition parameter of the webcast includes: at least one of code rate, resolution or frame rate.
The definition switching method according to any one of claims 1-6, further comprising:

When the uplink bandwidth of the webcast is less than the minimum bit rate in the first definition level within the preset duration, the first definition level is lowered by one level to obtain the third definition level degree gear;

The second definition level is determined according to the third definition level and the uplink bandwidth of the network live broadcast.
The definition switching method according to any one of claims 1-6, further comprising:

When the upstream bandwidth of the live network broadcast is greater than the maximum bit rate in the first definition level within the preset duration, increase the first definition level by one level to obtain the fourth definition level degree gear;

The second definition level is determined according to the fourth definition level and the uplink bandwidth of the network live broadcast.
The definition switching method according to any one of claims 1-6, wherein the client can be a client of a broadcast user or a client of a broadcast user.
A resolution switching device for webcasting, applied to a client, comprising:

A determination module, configured to determine the uplink bandwidth and the first definition level of the network live broadcast during the playing process of the network live broadcast, the first definition level being the current definition level of the network live broadcast;

An adjustment module, configured to, when the uplink bandwidth of the webcast does not match the first definition level within a preset duration, based on the second definition level matched by the uplink bandwidth of the webcast, The definition parameter of the webcast is adjusted, the first definition level is different from the second definition level, and the definition parameter of the webcast is used to adjust the definition of the webcast;

A sending module, configured to send the adjusted definition parameter of the webcast to the server;

A receiving module, configured to receive from the server a live audio and video stream corresponding to the adjusted clarity parameter of the webcast;

The playback module is used to play the live audio and video stream.
A client, including:

memory; and

A processor coupled to the memory, the processor configured to implement the definition switching method for network live broadcast according to any one of claims 1-10 based on the instructions stored in the memory.
A non-transitory computer storage medium, comprising computer instructions, when the computer instructions are run on an electronic device, the electronic device is made to execute the definition switching method for network live broadcasting according to any one of claims 1-10 .
A non-transitory computer program product, when the computer program product is run on a computer, the computer is made to execute the method for switching the definition of network live broadcast according to any one of claims 1-10.
A computer program, comprising instructions, which, when executed by a processor, cause the processor to execute the method for switching the definition of network live broadcast according to any one of claims 1-10.