CN113438513B - Video resolution switching method, device, equipment and storage medium - Google Patents

Abstract

Embodiments of the present invention provide a video resolution switching method, device, device, and storage medium, which relate to the field of display technology, wherein the method includes: receiving a video sent by the client to switch the played video from the current resolution to the target resolution A switching request; based on the switching request, redirect the address of the set video slice corresponding to the current resolution to the address of the video slice corresponding to the target resolution; wherein, the set video slice includes The video fragment after the current video fragment played by the client, or the next video fragment, or all video fragments; receive the download request of the next video fragment sent by the client, based on the download request from The address of the video fragment corresponding to the target resolution is queried for the next video fragment, and the next video fragment is fed back to the client, which can realize seamless resolution switching and avoid the resolution switching process Black screen phenomenon in .

Description

A video resolution switching method, device, equipment and storage medium

technical field

Embodiments of the present invention relate to the field of display technology, and in particular, to a video resolution switching method, device, device, and storage medium.

Background technique

In many scenarios, the video resolution is often switched according to user operations or other requirements.

During the resolution switching process, the client needs to stop the video content of the current resolution being played, re-download the index file corresponding to the target resolution to the server, find the previous stop playback time point, and reacquire the target based on the index file. The video corresponding to the resolution, and play the video corresponding to the target resolution based on the time point when the playback is stopped. However, in this case, even if the network condition is very good, the client is prone to a short-term black screen phenomenon, which affects user experience.

Contents of the invention

Embodiments of the present invention provide a video resolution switching method, device, device, and storage medium, which can realize seamless switching of resolutions and avoid black screen phenomena during the resolution switching process.

In the first aspect, the embodiment of the present invention provides a video resolution switching method, the method is applied to the server, including:

Receive the switching request sent by the client to switch the playing video from the current resolution to the target resolution;

Based on the switching request, redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution; wherein, the setting of the video segment includes playing on the client The video segment after the current video segment, or the next video segment, or all video segments;

Receive the download request of the next video fragment sent by the client, query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request, and send the next The video fragments are fed back to the client.

In the second aspect, the embodiment of the present invention also provides a video resolution switching method, the method is applied to a client, and the method includes:

Sending a switching request for switching the played video from the current resolution to the target resolution to the server; the switching request is used to instruct the server to redirect the address of the set video segment corresponding to the current resolution The address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments piece;

Send a download request for the next video segment to the server;

Receive the next video segment fed back by the server from the address of the video segment corresponding to the target resolution based on the download request, and when the current video segment is played, play the next video segment A video segment.

In the third aspect, the embodiment of the present invention provides a video resolution switching device, the device is applied to the server, including:

The receiving module is configured to receive a switch request sent by the client to switch the video from the current resolution to the target resolution;

A redirection module, configured to redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution based on the switching request; wherein, the set video segment The segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments;

The receiving/feedback module is configured to receive the download request of the next video fragment sent by the client, and query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request , and feed back the next video segment to the client.

In a fourth aspect, an embodiment of the present invention provides a video resolution switching device, the device is applied to a client, and the device includes:

The first sending module is used to send a switch request to the server to switch the played video from the current resolution to the target resolution; the switch request is used to instruct the server to set the current resolution corresponding to The address of the video segment is redirected to the address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or the next video segment Fragments, or all video fragments;

The second sending module is used to send a download request of the next video segment to the server;

The receiving/playing module is configured to receive the next video segment fed back by the server from the address of the video segment corresponding to the target resolution based on the download request, and play the current video segment When finished, the next video segment is played.

In a fifth aspect, an embodiment of the present invention provides an electronic device, including:

one or more processors;

storage means for storing one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors are made to implement the method provided by the embodiment of the present invention.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method provided in the embodiment of the present invention is implemented.

In the technical solution provided by the embodiment of the present invention, the server receives a switch request from the current resolution to the target resolution, and based on the switch request, redirects the address of the set video segment corresponding to the current resolution to the address corresponding to the target resolution. The address of the video segment, where the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments; if the next video segment is received Based on the download request of the video clip, query the next video clip from the address of the video clip corresponding to the target resolution based on the download request, and feed it back to the client; that is, by redirecting the address of the video clip, the In the case of a video segment, it can avoid re-downloading of index files, realize seamless resolution switching, avoid black screen phenomenon during resolution switching, and improve user experience.

Description of drawings

Figure 1a is a schematic diagram of the M3U8 playlis file;

Fig. 1b is a flowchart of a video resolution switching method provided by an embodiment of the present invention;

Figure 1c is a schematic diagram of server-side redirection;

Fig. 1d is a schematic flowchart of a video resolution switching method provided by an embodiment of the present invention;

FIG. 2 is a flowchart of a video resolution switching method provided by an embodiment of the present invention;

FIG. 3 is a flowchart of a video resolution switching method provided by an embodiment of the present invention;

FIG. 4 is a flowchart of a video resolution switching method provided by an embodiment of the present invention;

FIG. 5 is a structural block diagram of a video resolution switching device provided by an embodiment of the present invention;

FIG. 6 is a structural block diagram of a video resolution switching device provided by an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

In related technologies, the basic principle of the HTTP-based streaming media network transmission protocol (HTTP Live Streaming, HLS) is: the server divides a video into small video segments (segment, TS/fmp4 container format), and generates a An index file comprising these video segment information and addresses, the address may be, for example, a Uniform Resource Locator (Uniform Resource Locator, URL), and the index file may be called an M3U8 program playlist (playlist) file. The client sends a download request to the server, first requesting to download the M3U8 playlist file, and then interpreting the file to obtain program information, such as resolution, video encoding, audio encoding, length and duration of video fragments, etc. And the address (URL) of each video segment, and then the client can request the server to download the video segments one by one, after decontainer encapsulation, decoding, and finally presenting.

M3U8 playlist files are generally divided into Main M3U8 and Sub M3U8. Among them, Main M3u8 describes SubM3U8 and the bandwidth of the corresponding program stream, that is, the bit rate. Different resolutions correspond to different bit rates, and Sub M3U8 describes the information of video fragmentation. The information of the M3U8 playlist file can refer to Figure 1a. As shown in Figure 1a, the M3U8 playlist file includes Main M3U8 and Sub M3U8. Among them, Sub M3U8 includes each sub-M3U8, such as Sub M3U8720P, Sub M3U8 1080P, Sub M3U8 4K, etc. .

In related technologies, the client can select the video fragmentation of the program content with the corresponding bandwidth (or bit rate) according to the current network conditions. In order to distinguish and serve different customers, such as tourists, many service providers may allow watching resolutions below 720P Ordinary login users can watch videos with a resolution below 1080P, and VIP customers can watch videos with a resolution of 4K or even higher resolutions. Therefore, the server often only distributes one-level M3U8, that is, Sub M3U8 to the client. When the client chooses a different resolution, for example, if switching from 720P to 4K, it needs to stop the currently being displayed 720P video playback and re-submit to the service. The terminal requests to download the Sub M3U8 corresponding to 4K, find the previous playback point again, and then present the video content with 4K resolution. In this way, even if the network condition is very good, there will be a short black screen during the process.

In order to solve the above problems, an embodiment of the present invention provides a video resolution switching method, wherein, FIG. The device may be implemented by software and/or hardware, and the device may be configured on a server, where the server may include one or more servers, and the method may be applied in a video playback scenario.

S110: Receive a switch request sent by the client to switch the played video from the current resolution to the target resolution.

In the embodiment of the present invention, the video containing program content is divided into video segments, and the video segments are played in sequence. If the conditions for switching the video resolution are satisfied or an instruction for switching the video resolution is received, the client can send a switching request for switching the video from the current resolution to the target resolution to the server, and the server receives the switching request. Wherein, satisfying the video resolution switching condition may be that the network meets the resolution switching condition, or user information meets the resolution switching condition, etc.; wherein, if it is detected that the user triggers the resolution switching operation, an instruction for video resolution switching is received.

In the embodiment of the present invention, optionally, before receiving the switching request, it may further include: performing content alignment on video slices with different resolutions, and storing video slices with the same resolution in the same location. Specifically, the video content of the same program may be encoded into video segments with different resolutions through the content storage server, and the content of the video segments with different resolutions may be aligned. For example, the first video fragment of 720P and the first video fragment of 1080P and 4K must be completely aligned, and the encoding method (such as H264), duration, etc. need to be aligned, but the resolution is different. Therefore, subsequent video fragments also need to perform content alignment. The content storage server stores the video fragments of the same resolution in one storage location, and the video fragments of different resolutions are stored in different storage locations, and then creates a general Sub M3U8 file for the video content of the same program, and the Sub M3U8 file lists each An address of a video segment, for example, may be a URL address of each video segment.

S120: Based on the switching request, redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution; wherein, the set video segment is included in the client The video segment after the current video segment played by the terminal, or the next video segment, or all video segments.

In the embodiment of the present invention, upon receiving the switch request, the server may redirect the address of the set video segment to the address corresponding to the video segment of the target resolution based on the switch request.

Wherein, setting the video segment can include the video segment after the current video segment of the video currently played by the client, specifically, the number of video segments after the current video segment included in the setting video segment can be one or more. Optionally, in addition to including one or more video segments after the current video segment of the video currently played by the client, the set video segment may also include the current video segment or one or more video segments before the current video segment. Multiple video slices. Optionally, the set video may also only include the next video segment after the current video segment. Optionally, the set video segments may also include all video segments of the video currently played by the client. Wherein, the set video slices may be determined as required, and the present application does not limit the specific video slices included in the set video slices. Thus, by redirecting the address of the set video segment, the client can access the address of the video segment corresponding to the target resolution, thereby pulling the video segment from the address of the video segment corresponding to the target resolution , so as to complete the resolution switching. Wherein, the address of the set video segment may be redirected to the address of the video segment corresponding to the target resolution through the content distribution server.

In an implementation of the embodiment of the present invention, optionally, before redirection, the method provided by the embodiment of the present invention may further include: storing the address and identification information of the video segment corresponding to the current resolution in the index In the file; correspondingly, redirecting the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution, including: based on the index file, resetting the current resolution The address of the corresponding set video slice is mapped to the address of the video slice corresponding to the target resolution.

Wherein, the address of the video segment and the address of the video segment corresponding to the target resolution are set as a corresponding relationship. Wherein, the address of setting the video segment can be the URL address of setting the video segment, and the client can access the video segment corresponding to the target resolution in the server based on the URL address of the video segment corresponding to the current resolution in the index file. slice address to obtain the video slice corresponding to the target resolution. For example, the switching request is a switching request for switching the resolution from 2k to 4k. As shown in Figure 1c, the server can redirect the URL address of the video segment in the index file Sub M3U8 to the URL address of the video segment corresponding to the resolution 4k. address.

S130: Receive the download request of the next video fragment sent by the client, query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request, and send the The next video segment is fed back to the client.

In the embodiment of the present invention, before playing the video content, the client can send a request for downloading the index file to the server, and receive the index file fed back by the server. By parsing the index file, the address of the video segment can be obtained (which can be URL address), identification information, video resolution length, duration and other information, the client continuously requests to download video fragments according to the index file piece by piece, so as to play the video fragments. The client can determine the identification information of the next video segment based on the identification information in the index file. When the client sends a download request to the server, the download request carries the address of the next video segment corresponding to the current resolution and the next video segment. The identification information of a video fragment. The server receives the download request, and directs the address of the video fragment carried in the download request to the address of the video fragment corresponding to the target resolution. From the address of the video fragment of the target resolution Query the next video segment based on the identification information. It should be noted that the query here can also be understood as the meaning of obtaining video fragments from the address.

Specifically, the content distribution server may receive the download request, determine the address of the video segment corresponding to the target resolution based on the address of the video segment carried in the download request, and determine the address of the video segment corresponding to the target resolution based on the address of the video segment corresponding to the target resolution. The storage server queries and obtains the next video fragment, and feeds back the next video fragment to the client. The client receives the next video fragment. If the current video fragment corresponding to the current resolution is played, the next video fragment is played. Video fragmentation.

In this embodiment, the technical solution provided by the embodiment of the present invention is illustrated. For example, as shown in FIG. 1d, if the resolution is switched from 720P to 4K, the client sends a resolution switching request (or switching resolution request), The content distribution server redirects the address of the video segment in the Sub M3U8 file from the address corresponding to the resolution 720P to the address corresponding to the resolution 4k. The client sends a download request for the next video fragment, and the content distribution server queries the address of the corresponding video fragment with a resolution of 4k based on the address of the video fragment in the Sub M3U8 file, and obtains the address of the video fragment corresponding to the resolution of 4k from the content storage server. Get the next video segment from the address of the video segment and feed it back to the client.

It should be noted that the embodiment of the present invention provides that the storage server and the content distribution server can be independent devices. In other embodiments of the present invention, the content storage server and the content distribution server can be combined into one device, and the device also has Functions of storage server and content distribution server.

In the technical solution provided by the embodiment of the present invention, the server receives a switch request from the current resolution to the target resolution, and based on the switch request, redirects the address of the set video segment corresponding to the current resolution to the address corresponding to the target resolution. The address of the video segment, where the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments; if the next video segment is received Based on the download request of the video clip, query the next video clip from the address of the video clip corresponding to the target resolution based on the download request, and feed it back to the client; that is, by redirecting the address of the video clip, the In the case of a video segment, it can avoid re-downloading of index files, realize seamless resolution switching, avoid black screen phenomenon during resolution switching, and improve user experience.

Fig. 2 is a flow chart of a video resolution switching method provided by an embodiment of the present invention, the method can be executed by a video resolution switching device, and the device can be implemented by software and/or hardware; the device can be configured On the client side, the client side can play video, and the method can be applied in a video playing scene, wherein the transmission of video data between the client side and the server side is based on the HTTP streaming media network transmission protocol.

As shown in Figure 2, the technical solutions provided by the embodiments of the present invention include:

S210: Send to the server a switching request for switching the played video from the current resolution to the target resolution; the switching request is used to instruct the server to segment the address of the set video segment corresponding to the current resolution Redirection is the address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all Video fragmentation.

In the embodiment of the present invention, the video containing program content is divided into video segments, and the video segments are played in sequence. If the conditions for video resolution switching are met or a video resolution switching instruction is received, the client can send a video switching request from the current resolution to the target resolution to the server, and the server receives the switching request, and based on the switching request Redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client slice, or the next video slice, or all video slices. Wherein, satisfying the video resolution switching condition may be that the network meets the resolution switching condition, or user information meets the resolution switching condition, etc.; wherein, if it is detected that the user triggers the resolution switching operation, an instruction for video resolution switching is received.

In the embodiment of the present invention, optionally, before receiving the switching request, it may further include: performing content alignment on video slices with different resolutions, and storing video slices with the same resolution in the same location. Specifically, the video content of the same program may be encoded into video segments with different resolutions through the content storage server, and the content of the video segments with different resolutions may be aligned. For example, the first video fragment of 720P and the first video fragment of 1080P and 4K must be completely aligned, and the encoding method (such as H264), duration, etc. need to be aligned, but the resolution is different. Therefore, subsequent video fragments also need to perform content alignment. The content storage server stores the video fragments of the same resolution in one storage location, and the video fragments of different resolutions are stored in different storage locations, and then creates a general Sub M3U8 file for the video content of the same program, and the Sub M3U8 file lists each An address of a video segment, for example, may be a URL address of each video segment.

S220: Send a download request of the next video segment to the server.

In the embodiment of the present invention, the client sends a switching request from the current resolution to the target resolution to the server, does not stop playing the video, but continues to play the current video segment corresponding to the current resolution, and sends a request to the server Send a download request for the next video segment.

In an implementation manner of the embodiment of the present invention, optionally, before playing the video, the method provided by the embodiment of the present invention may further include sending a request for downloading the index file to the server, and receiving a request fed back by the server The index file; wherein, the index file includes the address and identification information of the video fragment corresponding to the current resolution; correspondingly, before sending the download request of the next video fragment to the server, it also includes: The index file determines the next video segment.

Among them, before playing the video, the client can send a request for downloading the index file to the server, and receive the index file fed back by the server. By parsing the index file, the address of the video segment (which can be a URL address) and identification information can be obtained. , video resolution length, duration and other information, the client requests to download video fragments one by one according to the index file, so as to play the video fragments. The client can determine the identification information of the next video segment based on the identification information in the index file. When the client sends a download request to the server, the download request carries the address of the next video segment and the address of the next video segment. Identification information, the server directs to the address of the video segment corresponding to the target resolution based on the address of the video segment carried in the download request, and queries the next video segment based on the identification information from the address of the video segment corresponding to the target resolution .

It should be noted that the step "sending a download request for the next video fragment to the server" can be performed during the process of "continuing to play the current video fragment corresponding to the current resolution", or it can be performed when receiving the feedback from the server When the redirection is successful, the client sends a download request of the next video segment to the server, or at other times, the client sends a download request of the next video segment to the server.

S230: Receive the next video fragment queried from the address of the video fragment corresponding to the target resolution based on the download request fed back by the server, and play the current video fragment when the playback of the current video fragment is completed. Describe the next video segment.

In the embodiment of the present invention, since the next video segment is the video segment queried from the address of the video segment corresponding to the target resolution, the resolution of the next video segment is the target resolution.

In the embodiment of the present invention, if the current video segment corresponding to the current resolution is played completely, the next video segment corresponding to the target resolution is played. Among them, since the address of the next video segment has been redirected to the address of the video segment corresponding to the target resolution, the subsequent video segment pulled by the client is the video segment corresponding to the target resolution, thus completing the video resolution switch.

In the technical solution provided by the embodiment of the present invention, a switch request from the current resolution to the target resolution is sent to the server, and the switch request is used to instruct the server to redirect the address of the set video segment to the address corresponding to the target resolution. address, the client sends a download request for the next video segment to the server, and receives the next video segment that the server queries from the address of the video segment corresponding to the target resolution based on the download request; if the current video segment After the playback is complete, play the next video segment. That is, if you need to switch the resolution, you can pull the next video segment corresponding to the target resolution based on the download request through redirection. If the current video segment is played, play The next video segment corresponding to the target resolution can realize seamless resolution switching, avoid black screen phenomenon during the resolution switching process, improve user experience, and improve product competitiveness.

Fig. 3 is a flow chart of a video resolution switching method provided by an embodiment of the present invention. In this embodiment, optionally, the method provided by this embodiment of the present invention may further include:

If other video fragments except the current video fragment are locally cached, the other video fragments are deleted.

Optionally, before playing the video, include:

Sending a request for downloading an index file to the server, and receiving the index file fed back by the server; wherein, the index file includes the address and identification information of the video segment corresponding to the current resolution;

Correspondingly, before sending the download request of the next video segment to the server, it also includes:

A next video segment is determined based on the index file.

As shown in Figure 3, the technical solutions provided by the embodiments of the present invention include:

S310: Send a request for downloading an index file to the server, and receive the index file fed back by the server; wherein, the index file includes addresses and identification information of video segments corresponding to the current resolution.

S320: Extract video segments based on the index file, and perform video playback according to the video segments.

In the embodiment of the present invention, the client parses the information in the index file, and continuously sends download requests piece by piece based on the index file, so as to pull video fragments and play the video in the order of the video fragments.

S330: Send a switch request to the server to switch the played video from the current resolution to the target resolution; the switch request is used to instruct the server to segment the address of the set video segment corresponding to the current resolution Redirection is the address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all Video fragmentation.

S340: If other video fragments corresponding to the current resolution other than the current video fragment are cached locally, delete the other video fragments.

In the embodiment of the present invention, if there is redundant cache locally, the redundant cache may be cleared, wherein the redundant cache is other video fragments corresponding to the current resolution other than the current video fragment.

Therefore, by deleting redundant buffers, it is possible to avoid playing video fragments of the current resolution for a long time, and to realize switching of resolutions quickly.

S350: Determine the next video segment based on the index file, and send a download request of the next video segment to the server.

S360: Receive the next video fragment queried from the video fragment address corresponding to the target resolution based on the download request fed back by the server, and play the next video fragment when the current video fragment is played. A video segment.

Fig. 4 is a video resolution switching method provided by an embodiment of the present invention. The method can be implemented by a client and a server. As shown in Fig. 4, the technical solution provided by an embodiment of the present invention includes:

S410: the client sends a switch request to the server to switch the played video from the current resolution to the target resolution.

S420: The server receives the switch request, and based on the switch request, redirects the address of the set video segment to the address of the video segment corresponding to the target resolution; wherein, the set video segment Including the video segment after the current video segment played by the client, or the next video segment, or all video segments.

S430: The client sends a download request of the next video segment to the server.

S440: The server receives the download request of the next video segment, queries the next video segment from the address of the video segment corresponding to the target resolution based on the download request, and sends the next The video fragments are fed back to the client.

S450: The client receives the next video segment, and plays the next video segment when the current video segment is finished playing.

For the introduction of S410-S450, reference may be made to the introduction of the foregoing embodiments.

For other steps performed by the client and the server, reference may be made to the introduction of the foregoing embodiments.

Fig. 5 is a structural block diagram of a video resolution switching device provided by an embodiment of the present invention, the device is configured on a client, as shown in Fig. 5 , the device includes: a first sending module 510, a second sending module 520 And receiving/playing module 530.

Wherein, the first sending module 510 is configured to send a switch request for switching the played video from the current resolution to the target resolution to the server; the switch request is used to instruct the server to match the current resolution to the target resolution. The address of the set video segment is redirected to the address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or The next video segment, or all video segments;

The second sending module 520 is configured to send a download request of the next video segment to the server;

The receiving/playing module 530 is configured to receive the next video fragment queried from the address of the video fragment corresponding to the target resolution based on the download request fed back by the server, and when the current video fragment When the playback is finished, the next video segment is played.

Optionally, the device further includes a deletion module, configured to delete other video segments other than the current video segment corresponding to the current resolution if the other video segments are locally cached.

Optionally, the first sending module 510 is further configured to send a request for downloading an index file to the server before playing the video, and receive the index file fed back by the server; wherein the index file includes The address and identification information of the video segment corresponding to the current resolution;

The device further includes a determining module, configured to, before sending a download request of the next video segment to the server, further include: determining the next video segment based on the index file.

The above-mentioned device can execute the method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Fig. 6 is a structural block diagram of a video resolution switching device provided by an embodiment of the present invention. The device is configured on the server side. As shown in Fig. 6, the device includes: a receiving module 610, a redirection module 620 and a receiving/feedback Module 630.

Wherein, the receiving module 610 is configured to receive a switch request sent by the client to switch the video from the current resolution to the target resolution;

The redirection module 620 is configured to redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution based on the switching request; wherein, the set video Fragments include video fragments after the current video fragment played by the client, or the next video fragment, or all video fragments;

The receiving/feedback module 630 is configured to receive the download request of the next video segment sent by the client, and query the next video segment from the address of the video segment corresponding to the target resolution based on the download request. segment, and feed back the next video segment to the client.

Optionally, the device further includes an alignment/storage module, configured to perform content alignment on video slices with different resolutions, and store video slices with the same resolution in the same location.

Optionally, the device further includes a storage module, configured to store the address and identification information of the video segment corresponding to the current resolution in an index file;

Correspondingly, redirecting the address of the video segment to the address corresponding to the target resolution includes: based on the index file, redirecting the address of the set video segment corresponding to the current resolution to the video address corresponding to the target resolution The addresses of the fragments are mapped.

The above-mentioned device can execute the method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Fig. 7 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. As shown in Fig. 7, the device includes:

One or more processors 710, one processor 710 is taken as an example in FIG. 7;

memory 720;

The device may also include: an input device 730 and an output device 740 .

The processor 710, the memory 720, the input device 730 and the output device 740 in the device may be connected through a bus or in other ways. In FIG. 7, connection through a bus is taken as an example.

The memory 720, as a non-transitory computer-readable storage medium, can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to a video resolution switching method in the embodiment of the present invention (for example, The first sending module 510, the second sending module 520 and the receiving/playing module 530 shown in FIG. 5, or the receiving module 610, the redirecting module 620 and the receiving/feedback module 630 shown in FIG. 6). The processor 710 executes various functional applications and data processing of the computer device by running the software programs, instructions and modules stored in the memory 720, that is, realizes a video resolution switching method in the above method embodiment, namely:

Receive the switching request sent by the client to switch the playing video from the current resolution to the target resolution;

Based on the switching request, redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution; wherein, the setting of the video segment includes playing on the client The video segment after the current video segment, or the next video segment, or all video segments;

Receive the download request of the next video fragment sent by the client, query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request, and send the next The video fragments are fed back to the client.

or,

Sending a switching request for switching the played video from the current resolution to the target resolution to the server; the switching request is used to instruct the server to redirect the address of the set video segment corresponding to the current resolution The address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments piece;

Send a download request for the next video segment to the server;

Receive the next video segment fed back by the server from the address of the video segment corresponding to the target resolution based on the download request, and when the current video segment is played, play the next video segment A video segment.

The memory 720 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the computer device, and the like. In addition, the memory 720 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the storage 720 may optionally include storages that are remotely located relative to the processor 710, and these remote storages may be connected to the terminal device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 730 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the computer device. The output device 740 may include a display device such as a display screen, or an output interface or the like.

An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, a video resolution switching method as provided in the embodiment of the present invention is implemented:

Receive the switching request sent by the client to switch the playing video from the current resolution to the target resolution;

Based on the switching request, redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution; wherein, the setting of the video segment includes playing on the client The video segment after the current video segment, or the next video segment, or all video segments;

Receive the download request of the next video fragment sent by the client, query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request, and send the next The video fragments are fed back to the client.

or,

Sending a switching request for switching the played video from the current resolution to the target resolution to the server; the switching request is used to instruct the server to redirect the address of the set video segment corresponding to the current resolution The address of the video segment corresponding to the target resolution; wherein, the set video segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments piece;

Send a download request for the next video segment to the server;

Receive the next video segment fed back by the server from the address of the video segment corresponding to the target resolution based on the download request, and when the current video segment is played, play the next video segment A video segment.

Any combination of one or more computer readable medium(s) may be utilized. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more leads, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), Erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including - but not limited to - electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including - but not limited to - wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out the operations of the present invention may be written in one or more programming languages, or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional Procedural programming language—such as "C" or a similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as through an Internet service provider). Internet connection).

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (8)

1. A video resolution switching method, characterized in that the method is applied to the server, including: Receive the switching request sent by the client to switch the playing video from the current resolution to the target resolution; Based on the switching request, redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution; wherein, the set video segment includes the client The video segment after the current video segment played, or the next video segment, or all video segments; Receive the download request of the next video fragment sent by the client, query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request, and send the next The video segment is fed back to the client; Wherein, the address and identification information of the video slice corresponding to the current resolution are stored in the index file; Correspondingly, the redirecting the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution includes: mapping the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution based on the index file; Wherein, before playing the video content, the client sends a request for downloading the index file to the server, and receives the index file fed back by the server. 2. The method according to claim 1, further comprising: Content alignment of video fragments of different resolutions, and storage of video fragments of the same resolution in the same location. 3. A video resolution switching method, characterized in that, the method is applied to a client, and the method comprises: Sending a switching request for switching the played video from the current resolution to the target resolution to the server; the switching request is used to instruct the server to redirect the address of the set video segment corresponding to the current resolution is the address of the video segment corresponding to the target resolution; the server stores the address and identification information of the video segment corresponding to the current resolution in the index file; wherein, the set video segment is included in the The video segment after the current video segment played by the client, or the next video segment, or all video segments; Send a download request for the next video segment to the server; Receive the next video segment fed back by the server from the address of the video segment corresponding to the target resolution based on the download request, and when the current video segment is played, play the next video segment a video segment; Wherein, the address for instructing the server to redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution includes: Instructing the server to map the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution based on the index file; Among them, before playing the video, it also includes: Sending a request for downloading an index file to the server, and receiving the index file fed back by the server; wherein, the index file includes the address and identification information of the video segment corresponding to the current resolution; Correspondingly, before sending the download request of the next video segment to the server, it also includes: A next video segment is determined based on the index file. 4. The method according to claim 3, further comprising: If other video segments corresponding to the current resolution other than the current video segment are cached locally, the other video segments are deleted. 5. A video resolution switching device, characterized in that the device is applied to a server, including: The receiving module is configured to receive a switch request sent by the client to switch the video from the current resolution to the target resolution; A redirection module, configured to redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution based on the switching request; wherein, the set video segment The segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments; The receiving/feedback module is configured to receive the download request of the next video fragment sent by the client, and query the next video fragment from the address of the video fragment corresponding to the target resolution based on the download request , and feed back the next video segment to the client; A storage module, configured to store the address and identification information of the video slice corresponding to the current resolution in an index file; The request module is used for the client to send a request for downloading the index file to the server before playing the video content, and receive the index file fed back by the server; The address of the set video segment corresponding to the current resolution is redirected to the address of the video segment corresponding to the target resolution, including: Based on the index file, the address of the set video slice corresponding to the current resolution is mapped to the address of the video slice corresponding to the target resolution. 6. A video resolution switching device, characterized in that the device is applied to a client, and the device comprises: The first sending module is used to send a switch request to the server to switch the played video from the current resolution to the target resolution; the switch request is used to instruct the server to set the current resolution corresponding to The address of the video segment is redirected to the address of the video segment corresponding to the target resolution; the server stores the address and identification information of the video segment corresponding to the current resolution in the index file; wherein, the setting The specified video segment includes the video segment after the current video segment played by the client, or the next video segment, or all video segments; The second sending module is used to send a download request of the next video segment to the server; The receiving/playing module is configured to receive the next video segment fed back by the server from the address of the video segment corresponding to the target resolution based on the download request, and play the current video segment When finished, play the next video segment; Wherein, the address for instructing the server to redirect the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution includes: Instructing the server to map the address of the set video segment corresponding to the current resolution to the address of the video segment corresponding to the target resolution based on the index file; Wherein, the first sending module is further configured to send a request for downloading an index file to the server before playing the video, and receive the index file fed back by the server; wherein, the index file includes the current resolution The address and identification information of the corresponding video segment; The device further includes a determining module, configured to, before sending a download request of the next video segment to the server, further include: determining the next video segment based on the index file. 7. An electronic device, characterized in that it comprises: one or more processors; storage means for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1-4. 8. A computer-readable storage medium, on which a computer program is stored, wherein, when the program is executed by a processor, the method according to any one of claims 1-4 is implemented.

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