WO2015113243A1

WO2015113243A1 - Method, apparatus and electronic device for playing network video

Info

Publication number: WO2015113243A1
Application number: PCT/CN2014/071748
Authority: WO
Inventors: 黎奎
Original assignee: 华为终端有限公司
Priority date: 2014-01-29
Filing date: 2014-01-29
Publication date: 2015-08-06

Abstract

Provided are a method, apparatus and electronic device for playing a network video in the embodiments of the present application. The method comprises: obtaining and buffering the first video data of a first video stream of the network video to be played; when the buffered first video data reach to a first data amount, playing the video corresponding to the first video data; when the buffered first video data reach to a second data amount, obtaining and buffering the second video data of a second video stream of the network video to be played, so that when the playing of the first video data is finished, at least a third data amount of the second video data are buffered, and the first data amount and the third data amount are the least data amount required to be buffered and the first data amount is less than the third data amount; when the buffered second video data reach to the third data amount, playing the video corresponding to the second video data. With the embodiments of the present application, the playing delay is reduced and the playing effect is improved.

Description

Network video playing method, device and electronic device

TECHNICAL FIELD The present application relates to the field of network information processing technologies, and in particular, to a network video playing method, apparatus, and electronic device. BACKGROUND OF THE INVENTION Network video refers to a video file provided by a network video service provider and which can be played live or on-demand by streaming media.

An existing network video playing method uses an adaptive stream stream technology to prepare a plurality of video streams of different quality for the same video source. In the video playing process, a video stream with better quality can be obtained according to the current network bandwidth. The currently playing video stream continues to play.

However, in the process of implementing the present invention, the inventor finds that the acquired video stream does not immediately display and play, and needs to buffer a certain amount of data first, and different amounts of video streams need to be buffered with different amounts of data, which makes the network video There is a certain playback delay during playback, which affects the playback effect of network video.

Summary of the invention

In view of this, the present application provides a network video playing method, apparatus, and electronic device, which reduces playback delay and improves playback performance under the premise of ensuring a certain playback quality.

To achieve the above objective, the present application provides the following technical solutions:

In a first aspect, a network video playing method is provided, including:

Acquiring the first video data of the first video stream of the network video to be played to be cached;

When the first video data is buffered to the first data amount, the video corresponding to the first video data is played, and the first data amount is a quantity of data that needs to be cached at least when the first video stream is played;

Acquiring the second video data of the second video stream of the to-be-played network video for buffering when the first video data is buffered to the second data amount; the second data amount is caused by the second data amount The second video data can be buffered to the third time during the playing time of the video corresponding to the first video data. The amount of data, the third amount of data is a quantity of data that needs to be cached at least for playing the second video stream, and the first amount of data is smaller than the third amount of data;

And playing the video corresponding to the second video data when the second video data is at least buffered to the third data amount.

In a first possible implementation manner of the first aspect, when the first video data is buffered to the first data volume, playing the video corresponding to the first video data includes:

Determining, when the first video data is buffered to a first time, the first video data is buffered to a first data amount, where the first time is determined according to the first data amount and a current network bandwidth;

Playing the video corresponding to the first video data.

In conjunction with the first aspect or the first possible implementation of the first aspect, a second possible implementation manner of the first aspect is further provided, when the first video data is buffered to the second data volume, Acquiring the second video data of the second video stream of the network video to be played to be cached includes:

Determining, when the first video data is buffered to a second time, the first video data is buffered to a second amount of data; and the second time is based on the first time, the first data amount of the first video data Determining, according to the playing time of the corresponding video and the third time, the third time is determined according to the third data amount and the current network bandwidth;

Acquiring the second video data of the second video stream of the to-be-played network video for buffering.

In conjunction with the second possible implementation of the first aspect, a third possible implementation manner of the first aspect is further provided, when the playing time of the video corresponding to the first video data of the first data volume is greater than In the third time, the first time is the same as the second time;

And when the playing time of the video corresponding to the first video data of the first data amount is less than or equal to the third time, the second time is equal to a sum of the first time and the time difference, where the time difference is a time difference between a play time of the video corresponding to the first video data of the first data amount and the third time.

In conjunction with the second possible implementation or the third possible implementation of the first aspect, a fourth possible implementation manner of the first aspect is further provided, where the first video data of the first data amount corresponds to When the playing time of the video is less than or equal to the third time, the second time is specifically:

T2=T3-Ts+Tl+a; Wherein, T3 represents a third time, Ts represents a play time of a video corresponding to the first video data of the first data amount, and a represents a delay constant, and is greater than or equal to zero.

A fifth possible implementation manner of the first aspect, When the playing time of the video corresponding to the first video data is less than or equal to the third time, when the second video data is at least buffered to the third data amount, playing the video corresponding to the second video data includes :

The first video data of the first video stream of the network video to be played is obtained as a time starting point, and after the fourth time, the video corresponding to the second video data is played;

The fourth time is: T4 > Tl+2*T3-Ts+a;

Wherein, T4 represents the fourth time, T1 represents the first time, T3 represents the third time, Ts represents the playing time of the video corresponding to the first video data of the first data amount, and a represents the delay constant, and is greater than or equal to 0.

In a second aspect, a network video playing device is provided, including:

a first acquiring unit, configured to acquire first video data of the first video stream of the network video to be played to be cached;

a first playing unit, configured to: when the first video data acquired by the first acquiring unit is buffered to a first data amount, playing a video corresponding to the first video data, where the first data amount is a playing station The minimum amount of data that needs to be cached in the first video stream;

a second acquiring unit, configured to: when the first video data acquired by the first acquiring unit is buffered to a second data amount, acquire second video data of the second video stream of the to-be-played network video, and cache The second data amount is such that the second video data can be buffered to a third data amount during a playing time of the video corresponding to the first video data of the second data amount, where the third data amount is Playing the second video stream at least the amount of data to be buffered, the first amount of data being less than the third amount of data;

The second playing unit is configured to play the video corresponding to the second video data when the second video data is at least buffered to the third data amount.

In a first possible implementation manner of the second aspect, the first playing unit includes: a first determining unit, configured to determine, when the first video data is buffered to a first time, that the first video data is buffered to a first data amount, where the first time is according to the first data amount and current Network bandwidth determination;

a playing subunit, configured to play a video corresponding to the first video data.

In conjunction with the second aspect or the first possible implementation of the second aspect, the second possible implementation of the second aspect is further provided, where the second obtaining unit includes:

a second determining unit, configured to determine that the first video data is buffered to a second data amount when the first video data is buffered to a second time; the second time is according to the first time, the first time Determining a play time of the video corresponding to the first video data of the data quantity and a third time, where the third time is determined according to the third data quantity and the current network bandwidth;

And obtaining a subunit, configured to acquire second video data of the second video stream of the to-be-played network video for buffering.

In conjunction with the second possible implementation of the second aspect, a third possible implementation manner of the second aspect is further provided, where a play time of the video corresponding to the first video data of the first data amount is greater than In the third time, the first time is the same as the second time;

In conjunction with the second possible implementation or the third possible implementation of the second aspect, a fourth possible implementation manner of the second aspect is further provided, where the second playback unit is specifically configured to obtain a to-be-played The first video data of the first video stream of the network video is used as a time starting point. After the fourth time, the second video stream is switched to play the video corresponding to the second video data.

The fourth time is: T4 > Tl+2*T3-Ts+a;

In a third aspect, an electronic device is provided, including a processor, and respectively connected to the processor Connected memory, receiver and output device;

The memory is configured to cache video data;

The receiver is configured to acquire video data;

The output device is configured to play a video corresponding to the video data;

The processor is configured to trigger the receiver to acquire first video data of a first video stream of a network video to be played and cache the data into the memory;

When the first video data is buffered to the first data amount, the output device is triggered to play the video corresponding to the first video data, where the first data amount is data that needs to be cached at least when the first video stream is played. the amount;

When the first video data is buffered to the second data amount, the receiver is triggered to acquire the second video data of the second video stream of the to-be-played network video and cached into the memory; The amount of data is such that the second video data can be buffered to a third amount of data during a playing time of the video corresponding to the first video data of the second amount of data, and the third amount of data is played for the second The video stream requires a minimum amount of data to be buffered, and the first data amount d is at the third data amount;

And when the second video data is at least buffered to the third data amount, triggering, by the output device, to play a video corresponding to the second video data.

In a first possible implementation manner of the third aspect, the processor is specifically configured to: when the first video data is buffered to a first time, trigger the output device to play the corresponding corresponding to the first video data. Video, the first time is determined according to the first data amount and the current network bandwidth.

In conjunction with the third aspect or the first possible implementation of the third aspect, a second possible implementation manner of the first aspect is further provided, where the processor is specifically configured to: when the first video data is When buffering to the second time, triggering the receiver to acquire second video data of the second video stream of the to-be-played network video and buffering the data into the memory; the second time is according to the first time, Determining a play time of the video corresponding to the first video data of the first data amount and a third time, the third time being determined according to the third data amount and the current network bandwidth.

In summary, the present application provides a network video playing method, apparatus, and electronic device, which first acquires a first video data of a first video stream of a network video to be played, and then obtains a second video stream of the network video to be played. The second video data is buffered. Playing the first video stream requires at least the first cache The amount of data is smaller than the third amount of data that needs to be cached at least when the second video stream is played, so that when the first video data is buffered to the first amount of data, the playback can start, and in the case where the network bandwidth is constant, the first amount of data is cached. The time is less than the buffering time of the third data volume. Compared with the method of directly acquiring the second video data of the first video stream, the embodiment of the present application enables the video to be played in advance, reducing the playback delay, and the second video stream. It can be selected based on adaptive stream technology, so it can guarantee a certain playback quality, thus improving the playback effect and improving the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are merely examples of the present application, and those skilled in the art can obtain other drawings based on the drawings provided without any creative work.

1 is a flowchart of an embodiment of a network video playing method according to an embodiment of the present disclosure; FIG. 2 is a flowchart of another embodiment of a network video playing method according to an embodiment of the present application;

FIG. 3 is a flowchart of still another embodiment of a network video playing method according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an embodiment of a network video playing device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another embodiment of a network video playing device according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an embodiment of an electronic device according to an embodiment of the present application. The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application. One of the main ideas of the embodiments of the present application may include:

Acquiring the first video data of the first video stream of the network video to be played to be cached; when the first video data is buffered to the first data amount, playing the video corresponding to the first video data; Obtaining, by the second data quantity, the second video data of the second video stream of the to-be-played network video is buffered, and when the second video data is buffered to the third data quantity, playing the second video data corresponding to video. The first data amount that needs to be cached at least for playing the first video stream is smaller than the third data amount that needs to be cached at least when the second video stream is played, so that when the first video data is buffered to the first data amount, the content can be started, and the network bandwidth is constant. In this case, the buffering time of the first data volume is smaller than the buffering time of the third data volume, and the video in the embodiment of the present application enables the video to be played in advance, in a manner that the second video data of the second video stream is directly played. The playback delay is reduced, and the second video stream is selected according to user requirements or based on adaptive stream technology, so that the playback quality can be ensured at the same time, thereby improving the playback effect and improving the user experience. FIG. 1 is a flowchart of an embodiment of a network video playing method according to an embodiment of the present disclosure, where the method may include the following steps:

101: Acquire a first video data of a first video stream of a network video to be played to be cached.

Network video refers to the audio and video files provided by the network video service provider and can be played live or on-demand in streaming media.

The network video to be played is a network video that is to be played but not yet played. The embodiment of the present application is mainly directed to a playback scheme of the network video to be played.

The to-be-played network video may be a video or program that is determined to be played or pre-ordered by the user according to the user's request information.

The network video to be played may be determined according to the request information of the user when the video switching needs to be performed.

Since the switched network video to be played is different from the video server of the currently played network video, when the network video to be played is switched, the video data needs to be cached first, so there is a playback delay, which is the embodiment of the present application. In order to reduce the playback delay, the playback effect is improved and the user experience is improved. The embodiment of the present application is implemented based on multiple video streams in the adaptive code stream technology, that is, the video service provider prepares multiple video streams of the same quality but different content for the same network video, and each video stream is the same for the network video. The video stream of content is just different in video quality.

Step 102: Play the video corresponding to the first video data when the first video data is buffered to the first data amount.

Since the video is played, it is necessary to buffer a certain amount of data before playing, and the first data amount is the amount of data of the first video data that needs to be cached at least for playing the first video stream.

When the first video data is buffered to the first data amount, the first video data may be output to implement video playback.

103: When the first video data is buffered to the second data volume, acquire the second video data of the second video stream of the to-be-played network video for buffering.

When the first video data is buffered to the second data volume, the first video data may be stopped, and the second video data of the second video stream of the network video is obtained, where the first video data and the second video data are obtained. The video data needs to be video data with continuous video time and continuous content.

The second data amount is the total amount of buffered data of the first video data when the first video data buffer ends. The second amount of data needs to be such that the second video data can be buffered to a third amount of data, that is, the second amount of data, during the playing time of the video corresponding to the first video data of the second amount of data. The playing time of the video corresponding to the first video data is greater than or equal to the buffering time of the second video data of the third data amount.

The third amount of data is the amount of data of the second video data that needs to be cached at least for playing the second video stream. The second video stream may be determined based on an adaptive stream technology or determined according to a user's playback requirements. The second video stream refers to the determined video stream used to replace the played first video stream.

In order to reduce the buffering time and reduce the playback delay, in the embodiment of the present application, the first data amount needs to be smaller than the third data amount. That is, the first video stream is a video stream whose quality is lower than the second video stream.

The video quality of a video stream includes resolution, frame rate, and quantization granularity. In a possible implementation, different quality video streams can be identified according to the code rate, and the lower the code rate, the lower the quality. Therefore, the code rate of the first video stream is lower than the code rate of the second video stream.

The video stream of the lowest bit rate in the video stream may be selected as the first video stream. Therefore the steps 101 is that the first video data of the first video stream that obtains the lowest bit rate of the network video to be played is cached.

Of course, the first video stream and the second video stream may be determined in other manners, for example, according to the history log, the video stream corresponding to different playback requirements, such as network bandwidth, playback delay, and video quality, may be obtained, so that The current play request determines the first video stream and the second video stream, and only needs to satisfy the minimum amount of data that needs to be cached when playing the first video stream is less than the amount of data that needs to be cached at least for playing the second video stream.

104: Play the video corresponding to the second video data when the second video data is buffered to the third data amount.

When the second video data is buffered to the third data volume, the second video data may be switched to play the second video data, and the video corresponding to the first video data is stopped, and the video corresponding to the first video data ends, thereby Improve the quality of the playback video.

Of course, when the second video data of the second data amount ends, the second video data is switched to play the second video data, so that resource waste can be avoided. In this case, the second data amount is When the second video data is played, the second video data is buffered at least to the third amount of data.

If the second video data is buffered to the third data amount when the second video data of the second data is played, the second video stream is switched to the second video stream, and the video corresponding to the second video data is played. Video quality, and ensure the smoothness of video playback, while avoiding the waste of system resources.

In this embodiment, the first video data of the first video stream of the network video to be played is first cached, and the second video data of the second video stream of the network video to be played is obtained for buffering, because the first video is played. The first amount of data that needs to be cached at least is smaller than the third amount of data that needs to be cached at least when the second video stream is played, so that when the first video data is buffered to the first amount of data, the playback can start, and when the network bandwidth is constant. The buffering time of the first data volume is smaller than the buffering time of the third data volume, so that the video can be played in advance, the playback delay is reduced, and the second video stream is selected according to user requirements or based on adaptive code stream technology. Therefore, the playback quality can be guaranteed at the same time, thereby improving the playback effect and improving the user experience. FIG. 2 is a flowchart of another embodiment of a network video playing method according to an embodiment of the present disclosure, where the method may include the following steps: 201: Acquire first video data of the first video stream of the network video to be played to be cached.

202: When the first video data is buffered to the first time, determining that the first video data is buffered to the first data amount.

In this embodiment, whether the first video data is buffered to the first data amount may be determined according to the buffer time.

The first time is determined according to the current network bandwidth and the first amount of data. In a possible implementation manner, the first time is equal to a ratio of the first data amount to the current network bandwidth. That is, Tl = Datal / B, where T1 represents the first time, Data 1 represents the first amount of data, and B represents the current network bandwidth. This first time can be set in advance.

In order to improve the accuracy, in another possible implementation manner, the first time may be a sum of a delay constant and a ratio of the first data amount to the current network bandwidth. , that is, Tl=a+ Datal/B, a represents the delay constant, which can be determined according to the actual application, a > 0.

203: Play a video corresponding to the first video data.

Since the first amount of data is the amount of data that needs to be cached at least for playing the first video stream, when the first video data is buffered to the first time, the first video data can be output and the video is started to be played.

204: When the first video data is buffered to the second time, determining that the first video data is buffered to a second amount of data.

205: Acquire second video data of the second video stream of the to-be-played network video for buffering. The second time may be determined according to the first time, the playing time of the video corresponding to the first video data of the first data amount, and the third time, where the third time is according to the third data quantity. And the current network bandwidth is determined.

In a possible implementation manner, the second time may be equal to the playing time of the video corresponding to the first video data of the first data amount minus the third time plus the first time, that is, T2=T3-Ts+Tl, Wherein, T2 represents the second time, T3 represents the third time, and Ts represents the playing time of the video corresponding to the first video data of the first data amount. Where T3==Data3/B, where Data3 represents the third amount of data, and it is known that T1 is smaller than T3.

In another possible implementation, to improve accuracy, the T2 = T3 - Ts + Tl + a. The second The time can be set in advance.

Due to the amount of data buffered by the first video data, that is, the second amount of data, the second video data can be buffered to at least the third amount of data during the playback time of the video corresponding to the first video data of the second data amount. Accordingly, after the first video data buffer T1, at least the time of T3-Ts needs to be cached to ensure that the second video data can be buffered to the third data amount during the playback of the first video data.

206: When the second video data is buffered to the third data amount, playing the video corresponding to the second video data.

When the second video data is buffered to the third data amount, the buffered data amount of the first video data is not all played, or the second video data is simultaneously buffered to the third data amount when the buffered data amount of the first video data is all played. At this point, the second video stream can be switched to play the video corresponding to the second video data to ensure the quality of the video playback.

When the second video data is buffered to the third data amount, the second video data can be played. The second video data of the second video stream is specifically a time starting point for acquiring the first video data of the first video stream of the network video to be played, and starting to play after at least the time of T3-TS+T1+T3.

Since the first video data is buffered to the first time T1, the second video data needs to be buffered for the third time T3 to be played, so that the to-be-played video can be played in advance T3-T2, reducing the buffering time. , reducing the playback delay, can improve the playback effect.

In the above description, the play time of the video corresponding to the first video data of the first data amount is less than or equal to the third time.

However, in a practical application, the playing time of the video corresponding to the first video data of the first data amount may be greater than the third time. Therefore, as another embodiment, the video corresponding to the first video data of the first data amount When the playing time is greater than the third time, the second data amount is the same as the first data amount, that is, the second time is the same as the first time. When the first video data is buffered to the first time, the second video data of the second video stream for playing the network video is obtained for buffering.

In this embodiment, the first video data of the first video stream of the network video to be played is first cached, and the second video data of the second video stream of the network video to be played is obtained for buffering, because the first video stream is played. The minimum amount of data that needs to be cached at least is smaller than the third amount of data that needs to be cached at least for playing the second video stream, and the cache time can be determined according to the minimum amount of cached data, so that the first view When the frequency data is buffered to the first time, the playback can be started. When the network bandwidth is constant, the first time required for the first video data buffer of the first data amount is smaller than the second video data buffer of the third data amount. The required third time, thus enabling the video to be played in advance, reducing the playback delay, and the second video stream is selected to meet user requirements or based on adaptive stream technology, during the first video data playback process, when When the second video data is buffered to the third data amount, the second video stream can be switched to play the video corresponding to the second video data, so that the playback quality can be ensured at the same time, thereby improving the playback effect and improving the user experience. FIG. 3 is a flowchart of still another embodiment of a network video playing method according to an embodiment of the present disclosure, where the method may include the following steps:

301: Acquire a first video data of the first video stream of the network video to be played to be cached.

302: Calculate the first time according to the first data amount and the current network bandwidth.

In this embodiment, the video data may be acquired, and the calculation of the buffer time may be performed. Of course, it may be preset.

The first time may be equal to the ratio of the first data amount to the current network bandwidth.

In order to improve the accuracy, the first time may be specifically a ratio of the first data amount to the current network bandwidth, and a sum of delay constants, that is, Tl=a+Datal/B.

303: Play the video corresponding to the first video data when the first video data is buffered to the first time.

The first video data is buffered to the first time, that is, the first video data of the first data amount is buffered, so the first video data can be output to realize the playing of the video.

304: Calculate the third time according to the third data amount and the current network bandwidth.

The third amount of data is the amount of data that needs to be cached at least for the second video stream whose playback quality is higher than that of the first video stream, so that the third time can be calculated accordingly.

The third time may be equal to the ratio of the third data amount to the current network bandwidth.

In order to improve the accuracy, the third time may specifically be the ratio of the third data amount to the current network bandwidth, plus the sum of the delay constants, that is, T3=a+Data3/B.

305: Determine whether a play time of the video corresponding to the first video data of the first data quantity is large At the third time, if no, go to step 306, and if yes, go to step 308. If the playing time of the video corresponding to the first video data of the first data amount is greater than the third time, after the first video data is buffered by the first data amount, the acquiring may be stopped, thereby acquiring the second video data of the second video stream. The buffering can therefore ensure that the second video data is at least buffered to the third amount of data when the first video data of the first data amount is played.

When the playing time of the video corresponding to the first video data of the first data amount is less than or equal to the third time, in order to ensure that the second video data can be buffered to the third data amount when the first video data ends, the video data needs to be continued. Get and cache the first video data.

306. Calculate a second time according to the first time, the playing time of the video corresponding to the first video data of the first data amount, and the third time.

The second time is the total buffer time of the first video data, and the second video data is buffered to the second data amount after the second time, and the playing time of the video corresponding to the first video data of the second data quantity may be The second video data is guaranteed to be buffered to a third amount of data.

The second time may be equal to the third time minus the playing time of the video corresponding to the first video data of the first data amount, and the first time, wherein, in order to improve the accuracy, the second time may be the third time. The playback time of the video corresponding to the first video data minus the first data amount is added to the first time, and the delay constant is obtained, that is, T2=T3-Ts+Tl+a.

307: When the first video data is buffered to the second time, proceed to step 308.

The first video data is buffered to the second time, that is, the cache is stopped.

308: Acquire second video data of the second video stream of the to-be-played network video for buffering.

309. The first video data of the first video stream of the network video to be played is used as a time starting point. After the fourth time, the second video stream is switched to play the video corresponding to the second video data.

The fourth time T4 can be:

T4 > T1+2*T3-Ts. That is, it is obtained according to the buffer time T2 of the first video data and the buffer time T3 of the second video data. And T2=T3-TS+T1, so the fourth time can be obtained, so that after the fourth time, the second video data of the second video stream is at least buffered to the third data amount, and the second video data can be output and played. The video corresponding to the second video data.

In order to improve the accuracy, the fourth time may specifically be: T4 > Tl+2*T3-Ts+a. That is T2= T3-Ts+Tl+a, Tl=a+Datal/B, T3=a+Data3/B.

Wherein, the delay constants may have the same or different values when calculating different times.

In this embodiment, the first video data of the first video stream of the network video to be played is first cached, and the second video data of the second video stream of the network video to be played is obtained for buffering, because the first video stream is played. The minimum amount of data that needs to be cached at least is smaller than the third amount of data that needs to be cached at least for playing the second video stream, and the cache time can be determined according to the amount of data that needs to be cached at least, so that when the first video data is buffered to the first time, the data can be started. Playing, in a case where the network bandwidth is constant, the first time required for the first video data buffer of the first data amount is smaller than the third time required for the second video data buffer of the third data amount, so that the video can be advanced Playback, reducing the play delay; and the second video data can be cached after the first video data is buffered to the first time or the second time, ensuring video play continuity, and the second video stream meets user requirements Or based on adaptive stream technology, so the quality of playback can be guaranteed at the same time, thus improving the broadcast. The effect of improving the user experience.

For the foregoing method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described action sequence, because according to the present application, Some steps can be performed in other orders or at the same time. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the operations and modules involved are not necessarily required by the present application. FIG. 4 is a schematic structural diagram of an embodiment of a network video playing device according to an embodiment of the present disclosure, where the device may include:

The first obtaining unit 401 is configured to cache the first video data of the first video stream of the network video to be played.

The first playing unit 402 is configured to play the video corresponding to the first video data when the first video data acquired by the first acquiring unit is buffered to the first data amount. The first amount of data is the amount of data of the first video data that needs to be cached at least for playing the first video stream. When the first video data is buffered to the first data amount, the first video data may be output, and the video corresponding to the first video data is played.

The second obtaining unit 403 is configured to: when the first video data acquired by the first acquiring unit is cached to the second data amount, acquire the second video data of the second video stream of the network video to be played for buffering.

The second amount of data enables the second video data to be buffered to a third amount of data during the playing time of the video corresponding to the first video data of the second amount of data, the first amount of data and The third amount of data is a quantity of data that needs to be cached at least for playing the corresponding video stream, and the first amount of data is smaller than the third amount of data.

When the first video data is buffered to the second data volume, the first video data may be stopped, and the second video data of the second video stream of the network video is obtained, where the first video data and the second video data are obtained. The video data needs to be video data with continuous video time and continuous content. The second amount of data is the total amount of buffered data of the first video data.

The second video stream may be determined based on an adaptive stream technology or determined according to a user's playback requirements.

The second playing unit 404 is configured to play the video corresponding to the second video data when the second video data is at least buffered to the third data amount.

When the second video data is buffered to the third data amount, the second video data can be switched to play the second video data, and the video corresponding to the first video data is stopped, so that the quality of the played video can be improved.

If the second video data is buffered to the third data amount when the second video data of the second data is played, the second video stream is switched to the second video stream, and the video corresponding to the second video data is played, so that the video is guaranteed. The video quality ensures the smoothness of video playback while avoiding the waste of system resources.

In this embodiment, first acquiring the first video data of the first video stream of the network video to be played. Row buffering, and then acquiring second video data of the second video stream of the network video to be played for buffering, since the first data amount that needs to be cached at least for playing the first video stream is smaller than the third data amount that needs to be cached at least for playing the second video stream Therefore, when the first video data is buffered to the first data amount, the playback can be started. When the network bandwidth is constant, the buffering time of the first data amount is smaller than the buffering time of the third data amount, so that the video can be played in advance. The playback delay is reduced, and the second video stream is selected according to user requirements or based on adaptive code stream technology, so that the playback quality can be ensured at the same time, thereby improving the playback effect and improving the user experience.

FIG. 5 is a schematic structural diagram of another embodiment of a network video playing device according to an embodiment of the present disclosure, where the device may include:

The first obtaining unit 501 is configured to obtain the first video data of the first video stream of the network video to be played.

The first playing unit 502 is configured to play the video corresponding to the first video data when the first video data acquired by the first acquiring unit is cached to the first data amount.

As a possible implementation manner, the first playing unit 502 may include: a first determining unit 5021, configured to determine, when the first video data is buffered to a first time, determining that the first video data is buffered to The first amount of data.

The first time is determined according to the first amount of data and the current network bandwidth.

In a possible implementation, the first time is equal to the ratio of the first data amount to the current network bandwidth. That is, Tl=Datal/B. This first time can be set in advance.

In order to improve the accuracy, in another possible implementation manner, the first time may be a sum of a delay constant and a ratio of the first data amount to the current network bandwidth. , ie Tl=a+ Datal/B.

The playing subunit 5022 is configured to play a video corresponding to the first video data.

The second obtaining unit 503 is configured to: when the first video data acquired by the first acquiring unit is cached to the second data amount, acquire the second video data of the second video stream of the network video to be played for buffering.

The second amount of data needs to be corresponding to the first video data of the second amount of data During the playing time of the video, the second video data is at least buffered to a third amount of data, where the first amount of data and the third amount of data are at least a quantity of data to be cached for playing the corresponding video stream, and the first The amount of data is less than the third amount of data.

In a possible implementation manner, the second obtaining unit may include:

The second determining unit 5031 is configured to determine that the first video data is buffered to the second data amount when the first video data is buffered to the second time.

Determining, according to the first time, the playing time of the video corresponding to the first video data of the first data amount, and the third time, the third time according to the third data amount and the current network Bandwidth is determined.

In a possible implementation, the second time may be equal to the playing time of the video corresponding to the first video data of the first data amount minus the third time plus the first time, that is, T2=T3-Ts+Tl, where T2 represents the second time, T3 represents the third time, and Ts represents the play time of the video corresponding to the first video data of the first data amount. Where T3==Data3/B, where Data3 represents the third amount of data, and it is known that T1 is smaller than T3.

In another possible implementation, to improve accuracy, the T2 = T3-Ts + Tl + a. This second time can be set in advance.

The obtaining sub-unit 5032 is configured to obtain second video data of the second video stream of the to-be-played network video for buffering.

Since the amount of data of the first video data buffer, that is, the video playback corresponding to the first video data of the second data amount ends, it is necessary to ensure that the second video data can be buffered to at least the third data amount. Accordingly, after the first video data buffer T1, the time of T3-Ts needs to be buffered to ensure that the second video data can buffer the third data amount when the first video data is played.

The second playing unit 504 is configured to play the video corresponding to the second video data when the second video data is buffered to the third data amount.

Since the first video data is buffered for the first time T1, the second video data needs to be buffered for the third time T3 to be played, so that the to-be-played video can be played in advance T3-T2, which reduces the buffering time. Reduced playback delay and improved playback.

The second playing unit may be specifically configured to: acquire a first video stream of the network video to be played. The first video data is a time starting point, and after a fourth time, the video stream plays the video corresponding to the second video data.

The fourth time T4 can be:

T4 > Tl+2*T3-Ts+a. That is, according to the buffer time T2 of the first video data and the buffer time T3 of the second video data, and T2=T3-Ts+Tl+a, the fourth time can be obtained. Therefore, after the fourth time, the second video data of the second video stream is at least buffered to the third data amount, and the playback can be output. Where Tl=a+Datal/B, T3=a+Data3/B, a >0.

In the above description, the presentation of the video corresponding to the first video data of the first data amount is less than or equal to the third time.

However, in practical applications, the playback time of the video corresponding to the first video data of the first data amount may be greater than the third time, so as another embodiment:

When the playing time of the video corresponding to the first video data of the first data amount is greater than the third time, the second time is the same as the first time. That is, after the first video data is buffered to the first time, the second video data of the second video stream for playing the network video is obtained for buffering. That is, the second obtaining unit is configured to acquire the second video data of the second video stream of the network video to be played to be cached when the first video data acquired by the first acquiring unit is buffered to the first time.

In this embodiment, the first video data of the first video stream of the network video to be played is first cached, and the second video data of the second video stream of the network video to be played is obtained for buffering, because the first video stream is played. The minimum amount of data that needs to be cached at least is smaller than the third amount of data that needs to be cached at least for playing the second video stream, and the cache time can be determined according to the amount of data that needs to be cached at least, so that when the first video data is buffered to the first time, the data can be started. Playback, in the case that the network bandwidth is constant, the first time required for the buffer of the first data amount is smaller than the third time required for the buffer of the third data amount, so that the video can be played in advance, and the play delay is reduced. And the second video stream is selected according to the user requirement or based on the adaptive stream stream technology, so that the playback quality can be ensured at the same time. When the second video data is buffered to the third data amount, the second video stream can be buffered to the third data amount. Switching to the second video stream to play the video corresponding to the second video data, thereby improving the playback effect and improving the user Experience. The network video playing device described in the foregoing embodiment may be used as a single device in an actual application, or integrated in various electronic devices capable of realizing network video playing, such as a set top. Box, Mobile Phone, Tablet Personal Computer, Laptop Computer, Multimedia Player, Digital Camera, Personal Digital Assistant (PDA), Navigation Device, Mobile Internet Device (Mobile Internet) Device, MID) or wearable device (Wearable Device). By deploying the electronic device of the network video playing device of the embodiment of the present application, the cache time can be reduced, the play delay can be reduced, and the play effect can be improved, thereby improving the user experience.

From the above description, it will be apparent to those skilled in the art that the present application can be implemented by means of software plus a necessary general hardware platform. Therefore, referring to FIG. 6, an embodiment of the present application further provides an electronic device, where the electronic device includes at least a memory 601, a processor 602, a receiver 603, and an output device 604, wherein the memory 601, the receiver 603, and the output device 604 It is connected to the processor 602 via a bus, respectively.

The memory 601 is configured to cache video data;

The receiver 603 is configured to acquire video data.

The output device 604 is configured to play a video corresponding to the video data.

The processor 602 is configured to trigger the receiver 603 to acquire the first video data of the first video stream of the network video to be played and cache the first video data into the memory 602.

When the first video data is buffered to the first data amount, the output device 604 is triggered to play the video corresponding to the first video data, where the first data amount is the minimum amount of data to be cached for playing the third video stream. ;

When the first video data is buffered to the second data amount, triggering the receiver 603 to acquire second video data of the second video stream of the to-be-played network video and buffering into the memory 602; When the second video data is buffered to the third data amount, the output device 604 is triggered to play the video corresponding to the second video data.

The second data amount is such that the second video data can be buffered to a third data amount during the playing time of the video corresponding to the first video data of the second data amount, where the third data is The quantity is the amount of data that needs to be cached at least for playing the second video stream, and the first amount of data is smaller than the third amount of data.

The processor 602, when the first video data is buffered to the first data amount, triggering the output device 604 to play the video corresponding to the first video data, which may be specifically used when the first video is used. When the frequency data is buffered to the first time, the output device 604 is triggered to play the video corresponding to the first video data, and the first time is determined according to the first data amount and the current network bandwidth.

The processor 602 triggers the receiver 603 to acquire the second video data of the second video stream of the to-be-played network video and cache it in the memory 602 when the first video data is buffered to the second data amount. Specifically, the method may be configured to: when the first video data is buffered to a second time, trigger the receiver 603 to acquire second video data of the second video stream of the to-be-played network video, and cache the second video data into the memory 602. The second time is determined according to the playing time of the video corresponding to the first video data of the first data amount and the third time, and the third time is according to the third data amount and the current time. Network bandwidth is determined.

When the playing time of the video corresponding to the first video data of the first data amount is greater than the third time, the first time is the same as the second time; that is, the processor is at the first time. When the video data is buffered to the first time, the receiver 603 may be triggered to acquire the second video data of the second video stream of the to-be-played network video and cached in the memory 602.

The processor may be a central processing unit CPU, or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

The output device can be a player.

Optionally, the electronic device can be used to perform the network video playing method shown in FIG. 1 to FIG. 3 provided by the embodiment of the present application.

The various embodiments in the present specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the method part.

Finally, it should also be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, without necessarily requiring or Imply that there is any such actual relationship or order between these entities or operations. Furthermore, the terms "including", "comprising" or "comprising" or "comprising" are intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that includes a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or device that comprises the element, without further limitation.

For the convenience of description, the above devices are described separately by function into various units. Of course, the functions of each unit may be implemented in the same software or software and/or hardware when implementing the present application.

It will be apparent to those skilled in the art from the above description of the embodiments that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.

The above description of the disclosed embodiments enables those skilled in the art to make or use the application. Various modifications to these embodiments are obvious 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 application. Therefore, the application is not limited to the embodiments shown herein, but is to be accorded the broadest scope of the principles and novel features disclosed herein.

Claims

Rights request

1. An online video playback method, characterized by including:

Obtain the first video data of the first video stream of the network video to be played and cache it;

When the first video data is cached to a first data amount, the video corresponding to the first video data is played, and the first data amount is the minimum amount of data that needs to be cached to play the first video stream;

When the first video data is cached to the second data amount, the second video data of the second video stream of the network video to be played is obtained and cached; the second data amount is such that when the second data amount is reached, the second video data of the second video stream of the network video to be played is obtained. During the playback time of a video corresponding to a video data, the second video data can be cached to a third data amount, and the third data amount is the minimum amount of data that needs to be cached to play the second video stream, and the first The data amount d is equal to the third data amount;

When the second video data is buffered to at least the third data amount, the video corresponding to the second video data is played.

2. The method according to claim 1, wherein when the first video data is cached to a first data amount, playing the video corresponding to the first video data includes:

When the first video data is cached to a first time, it is determined that the first video data is cached to a first data amount, and the first time is determined based on the first data amount and the current network bandwidth;

Play the video corresponding to the first video data.

3. The method according to claim 1 or 2, characterized in that, when the first video data is cached to a second data amount, the second video data of the second video stream of the network video to be played is obtained and cached. include:

When the first video data is cached to the second time, it is determined that the first video data is cached to the second data amount; the second time is based on the first time and the first video data of the first data amount. The playback time and the third time of the corresponding video are determined, and the third time is determined based on the third data amount and the current network bandwidth;

The second video data of the second video stream of the network video to be played is obtained and cached.

4. The method according to claim 3, wherein when the playback time of the video corresponding to the first video data of the first data amount is greater than the third time, the first time and the third time are Two times are the same; When the playback time of the video corresponding to the first video data of the first data amount is less than or equal to the third time, the second time is equal to the sum of the first time and the time difference, and the time difference is the The time difference between the playback time of the video corresponding to the first video data of the first data amount and the third time.

5. The method according to claim 3 or 4, characterized in that, when the playback time of the video corresponding to the first video data of the first data amount is less than or equal to the third time, the second time Specifically:

T2=T3-Ts+Tl+a;

Among them, T3 represents the third time, Ts represents the playback time of the video corresponding to the first video data of the first data amount, and a represents the delay constant and is greater than or equal to 0.

6. The method according to any one of claims 3 to 5, characterized in that when the playback time of the video corresponding to the first video data of the first data amount is less than or equal to the third time;

When the second video data is cached to at least the third data amount, playing the video corresponding to the second video data includes: obtaining the first video data of the first video stream of the network video to be played as the time starting point, after At the fourth time, play the video corresponding to the second video data;

The fourth time is: T4 > Tl+2*T3-Ts+a;

Among them, T4 represents the fourth time, T1 represents the first time, T3 represents the third time, Ts represents the playback time of the video corresponding to the first video data of the first data amount, and a represents the delay constant and is greater than or equal to 0.

7. A network video playback device, characterized by including:

The first acquisition unit is used to acquire the first video data of the first video stream of the network video to be played and cache it;

A first playback unit, configured to play the video corresponding to the first video data when the first video data obtained by the first acquisition unit is cached to a first data amount, and the first data amount is the amount of data required for playback. The minimum amount of data that needs to be cached for the first video stream;

A second acquisition unit configured to acquire and cache the second video data of the second video stream of the network video to be played when the first video data acquired by the first acquisition unit is cached to a second data amount; The second data amount enables the playback of the video corresponding to the first video data of the second data amount. Within the time, the second video data can be cached to a third data amount. The third data amount is the minimum amount of data that needs to be cached to play the second video stream. The first data amount is smaller than the third data. The second playback unit is configured to play the video corresponding to the second video data when the second video data is buffered to at least the third data amount.

8. The device according to claim 7, wherein the first playback unit includes: a first judgment unit, configured to determine that the first video data has been cached for a first time. The video data is cached to a first data amount, and the first time is determined based on the first data amount and current network bandwidth;

A playback subunit is used to play the video corresponding to the first video data.

9. The device according to claim 7 or 8, characterized in that the second acquisition unit includes:

The second judgment unit is used to determine that the first video data is cached to a second data amount when the first video data is cached to a second time; the second time is based on the first time, the third The playback time and the third time of the video corresponding to the first video data of a data amount are determined, and the third time is determined according to the third data amount and the current network bandwidth;

The acquisition subunit is used to acquire the second video data of the second video stream of the network video to be played and cache it.

10. The device according to claim 9, wherein when the playback time of the video corresponding to the first video data of the first data amount is greater than the third time, the first time is equal to the third time. Two times are the same;

When the playback time of the video corresponding to the first video data of the first data amount is less than or equal to the third time, the second time is equal to the sum of the first time and the time difference, and the time difference is the The time difference between the playback time of the video corresponding to the first video data of the first data amount and the third time.

11. The device according to claim 9 or 10, wherein when the playback time of the video corresponding to the first video data of the first data amount is less than or equal to the third time, the second time Specifically:

T2=T3-Ts+Tl+a; Wherein, T3 represents the third time, Ts represents the playback time of the video corresponding to the first video data of the first data amount, and a represents the delay constant and is greater than or equal to 0.

12. The device according to claims 9 to 11, characterized in that the second playback unit is specifically configured to obtain the first video data of the first video stream of the network video to be played as the time starting point, and after the fourth time, play the video corresponding to the second video data;

The fourth time is: T4 > Tl+2*T3-Ts+a;

Among them, T4 represents the fourth time, T1 represents the first time, T3 represents the third time, Ts represents the playback time of the video corresponding to the first video data of the first data amount, a represents the delay constant, and is greater than or equal to 0.

13. An electronic device, characterized in that it includes a processor, a memory, a receiver and an output device respectively connected to the processor;

The memory is used to cache video data;

The receiver is used to obtain video data;

The output device is used to play the video corresponding to the video data;

The processor is configured to trigger the receiver to obtain the first video data of the first video stream of the network video to be played and cache it in the memory;

When the first video data is cached to a first data amount, the output device is triggered to play the video corresponding to the first video data. The first data amount is the minimum data that needs to be cached to play the first video stream. quantity;

When the first video data is cached to a second data amount, the receiver is triggered to obtain the second video data of the second video stream of the network video to be played and cache it in the memory; wherein, the first The second data amount enables the second video data to be cached to a third data amount within the playback time of the video corresponding to the first video data of the second data amount, and the third data amount is necessary to play the second data amount. The minimum amount of data that needs to be cached for a video stream is that the first data amount d is smaller than the third data amount;

When the second video data is buffered to at least the third data amount, the output device is triggered to play the video corresponding to the second video data.

14. The electronic device according to claim 13, wherein the processor is specifically configured to trigger the output device to play the first video when the first video data is cached for a first time. The video corresponding to the frequency data, the first time is determined according to the first data amount and the current network bandwidth.

15. The electronic device according to claim 13 or 14, wherein the processor is specifically configured to trigger the receiver to obtain the network to be played when the first video data is buffered to a second time. The second video data of the second video stream of the video is cached in the memory; the second time is based on the first time, the playback time of the video corresponding to the first video data of the first data amount, and the second time. Three times are determined, and the third time is determined according to the third data amount and the current network bandwidth.