WO2020000493A1

WO2020000493A1 - Media playing method and media playing device

Info

Publication number: WO2020000493A1
Application number: PCT/CN2018/093931
Authority: WO
Inventors: 张中信; 曹秋枫
Original assignee: 华为技术有限公司
Priority date: 2018-06-30
Filing date: 2018-06-30
Publication date: 2020-01-02
Also published as: CN112368987A; CN112368987B

Abstract

Disclosed are a media playing method and a media playing device. The method may comprise: a playing device first caching, by means of a first network access device connected thereto, media data from a streaming media server, and playing the media data; then, determining reserved media data from the cached media data, wherein the reserved media data is not played in the case where the playing device has been disconnected from the first network access device and is not connected to a second network access device; next, when the playing device is disconnected from the first network access device, playing a first portion of the cached media data; and finally, when the playing device is connected to the second network access device, playing a second portion of the cached media data, and caching media data from the streaming media server by means of the second network access device. In this way, the speed of restoring media playing can be improved in the case of reconnecting after being disconnected from a network.

Description

Media playing method and playing equipment

Technical field

The present application relates to the technical field of media playback, and in particular, to a media playback method and a playback device.

Background technique

With the development of Internet technology, viewing online media resources through the Internet has become a way of life for people. When people watch online media resources on the Internet through a media player, the media player will download the data of the media resources to the buffer area of the media player while playing. When the media player is disconnected from the Internet, the media player will continue The media data in the buffer area is played until the media data in the buffer area is played, and the media player stops playing the media data. After the media player is disconnected from the network and reconnected, the media player needs to wait for downloading the media data to the buffer before it starts to play the media data. In this way, a poor viewing experience of the user waiting too long will be caused.

Summary of the invention

The present application provides a media playback method and a playback device, which can improve the speed of recovering media playback in the case of network disconnection and reconnection.

A first aspect of the present application provides a method for playing media. The method includes: first, buffering media data from a streaming media server through a first network access device connected to the media, and playing the media data. Then, the reserved media data is determined from the cached media data, and the condition of the reserved media data after the connection with the first network access device is disconnected and it is not connected to the second network access device Is not played. Then, when disconnected from the first network access device, the first part of the buffered media data is played. Then, when connecting to the second network access device, the second part of the buffered media data is played, and the media data is cached from the streaming media server through the second network access device; wherein the buffered media data It includes the first part of the buffered media data and the second part of the buffered media data, and the second part of the buffered media data includes the reserved media data.

In this application, the second network access device may be the first network access device, or may be another network access device other than the first network access device.

By implementing the method of the first aspect, the playback device plays media data from the streaming media server while buffering, and determines the reserved media data. The reserved media data is connected between the playback device and the first network access device. After being disconnected and not connected to the second network access device, it will not be played. The reserved media data will be played when the playback device is connected to the second network access device. At the same time, the reserved media data can be played. Obtain an IP address for the playback time of the media data to reconnect to the streaming server. In this way, the reserved media data obtains time for the background to obtain an IP address, so that users can still enjoy video or audio during the network disconnection recovery stage (the stage of obtaining an IP address). In addition, after obtaining the IP address, the playback device reconnected to the streaming media server can normally obtain media data from the streaming media server. This is equivalent to greatly improving the streaming media loading efficiency during the network recovery stage and improving the user experience.

With reference to the first aspect, in a first possible implementation manner of the first aspect, after disconnecting from the first network access device, when playing the buffered media data to the reserved media data, The second portion of the buffered media data is equal to the reserved media data, and the method further includes: pausing to play the buffered media data. When the second network access device is connected, playing the second part of the buffered media data includes: when the second network access device is connected, playing the reserved media data.

That is, after disconnecting from the first network access device, if the playback device has not established a connection with the second network access device, the playback device pauses when playing the buffered media data to the reserved media data. Play. In this way, after the playback device reconnects to the network device, the reserved media data can be played, and the IP address is obtained and the streaming media server is successfully accessed during the playback of the reserved media data. Because the media data is reserved, the reserved media data can be played immediately after reconnecting to the access network device without waiting to re-establish a connection with the streaming media server, which improves the user experience.

With reference to the first aspect, in a second possible implementation manner of the first aspect, when connecting to the second network access device, the reserved media data has not yet been played, and the buffered media data in the second part is greater than The reserved media data. That is to say, when the playback device has not played the reserved media data, the playback device has been connected to the second network access device, and the playback can continuously play the media data without interruption during the process of disconnecting the network to re-entering the network. Pause improves the viewing experience for users.

With reference to the first aspect, or any possible implementation manner of the first to second aspects of the first aspect, in a third possible implementation manner of the first aspect, the playback time of the reserved media data is obtained by obtaining the IP The historical experience value of the time required for the address is determined, and the IP address is used to cache the media data from the streaming media server through the network access device. That is to say, the playback device can determine the playback duration of the reserved media data according to the historical experience value of the IP address obtained by the playback device. In this way, after the network disconnection and reconnection, the playback device does not need to wait to obtain the IP address before starting to play the media data, which reduces the waiting time for the user to view the media data.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the foregoing historical experience value includes multiple time values required to obtain the IP address multiple times. The playback duration of the reserved media data is determined by the historical experience value of the time required to obtain the IP address, and specifically includes: taking the average time value of the multiple time values required to obtain the IP address multiple times as the reserved media data. Or the playback time of the reserved media data is taken as the maximum time value among the multiple time values. In other words, the playback device can determine the playback time of the reserved media data based on the time required to obtain the IP address multiple times in the historical experience value, and more accurately determine the playback time of the reserved media data, reducing the playback The probability that the media data playback is interrupted after the device reconnects to the second network access device.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the connecting to the second network access device includes: connecting to the second network access device through a wired communication connection. When the second network access device is connected, playing the second part of the buffered media data specifically includes: when detecting that the state of the wired network port is switched from the disabled state to the enabled state, playing the second Partially cached media data. The wired network port is used to connect to the second network access device. That is, if the playback device is wired to the second network access device, the playback device can play the second part of the buffered media when it detects that the state of the wired network port is switched from the disabled state to the enabled state. data.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, the connecting to the second network access device includes: connecting to the second network access device through a wireless communication connection. The playing the second part of the buffered media data when connected to the second network access device specifically includes: when the identity authentication of the wireless communication connection with the second network access device is completed, playing the second Partially cached media data. That is, if the playback device is wirelessly connected to the second network access device, the playback device can play the second part of the buffered media data when the wireless device is authenticated with the second network access device.

In a second aspect, the present application provides a playback device. The playback device includes a playback unit, a cache unit, and a determination unit. The cache unit is configured to cache a stream media server through a first network access device connected to the cache unit. Media data. The playback unit is configured to play the media data. The determining unit is further configured to determine the reserved media data from the buffered media data, and the reserved media data is not connected to the first network access device after the playback device is disconnected, It is not played under the conditions of the second network access device. The playing unit is further configured to play the first buffered media data when disconnected from the first network access device. The playback unit is further configured to play the second part of the buffered media data when the playback device is connected to the second network access device, and cache the media data from the streaming media server through the second network access device. . The buffered media data includes the first part of the buffered media data and the second part of the buffered media data, and the second part of the buffered media data includes the reserved media data.

In this application, the second network access device may be the first network access device, or may be another network access device other than the first network access device. The playback device plays the data of the first media from the cache on the streaming media server. When the playback device is disconnected from the first network access device, the playback device can determine the reserved media data and copy the reserved media data. It is reserved for playback when the playback device is connected to the second network access device, and an IP address may be obtained by using the reserved playback time of the media data. In this way, when the network disconnection is restored, the time point of playing the media data can be advanced, the time that the user waits for the media data to be played after the network disconnection is restored, and the user experience is improved.

With reference to the second aspect, in a first possible implementation manner of the second aspect, after the playback device is disconnected from the first network access device, when the playback unit plays the cached media data to the pre- When the media data is retained, the playback device has not been connected to the second network access device, and the buffered media data in the second part is equal to the reserved media data. The playback unit is further configured to: after the playback device is disconnected from the first network access device, when the playback unit plays the buffered media data to the reserved media data, the playback device is not connected to the second The network access device pauses playing the reserved media data. The playback unit is further specifically configured to play the reserved media data when the playback device is connected to the second network access device. That is, after disconnecting from the first network access device, if the playback device has not established a connection with the second network access device, the playback device pauses when playing the buffered media data to the reserved media data. Play. In this way, after the playback device reconnects to the network device, the reserved media data can be played, and the IP address is obtained and the streaming media server is successfully accessed during the playback of the reserved media data. Because the media data is reserved, the reserved media data can be played immediately after reconnecting to the access network device without waiting to re-establish a connection with the streaming media server, which improves the user experience.

With reference to the second aspect, in a second possible implementation manner of the second aspect, when connected to the second network access device, the playback unit has not yet played the above-mentioned reserved media data, and the above-mentioned second part is cached The media data is larger than the reserved media data. That is to say, when the playback device has not played the reserved media data, the playback device has been connected to the second network access device, and the playback can continuously play the media data without interruption during the process of disconnecting the network to re-entering the network. Pause improves the viewing experience for users.

With reference to the second aspect or any possible implementation manner of the first to second aspects of the second aspect, in a third possible implementation manner of the second aspect, the playback device further includes an obtaining unit, and the obtaining unit is used for To obtain an IP address. The playback duration of the reserved media data is determined by the historical experience value of the time required for the obtaining unit to obtain an IP address, and the IP address is used by the cache unit to cache the media data from the streaming media server through a network access device. That is to say, the playback device can determine the playback duration of the reserved media data according to the historical experience value of the IP address obtained by the playback device. In this way, after the network disconnection and reconnection, the playback device does not need to wait to obtain the IP address before starting to play the media data, which reduces the waiting time for the user to view the media data.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the historical experience value includes multiple time values required by the obtaining unit to obtain the IP address multiple times. The reserved media data is determined by the historical experience value of the time required for the IP unit to obtain the IP address, and specifically includes: taking the average time value of the multiple time values required to obtain the IP address multiple times as the reserved media data. Or the playback time of the reserved media data is taken as the maximum time value among the multiple time values. In other words, the playback device can determine the playback time of the reserved media data based on the time required to obtain the IP address multiple times in the historical experience value, and more accurately determine the playback time of the reserved media data, reducing the playback The probability that the media data playback is interrupted after the device reconnects to the second network access device.

With reference to the second aspect, in a fifth possible implementation manner of the second aspect, the playback device is specifically configured to connect to the second network access device through a wired communication connection. The playback unit is specifically configured to: when the state of the wired network port of the playback device is switched from the disabled state to the enabled state, play the second part of the buffered media data. That is, if the playback device is wired to the second network access device, the playback device can play the second part of the buffered media when it detects that the state of the wired network port is switched from the disabled state to the enabled state. data.

With reference to the second aspect, in a sixth possible implementation manner of the second aspect, the playback device is specifically configured to connect to the second network access device through a wireless communication connection. The playback unit is specifically configured to: when the playback device and the second network access device complete identity authentication of the wireless communication connection, play the media data buffered in the second part. That is to say, if the playback device is wirelessly connected to the second network access device, the playback device can play the second part of the buffered media data when completing the identity authentication of the wireless communication connection with the second network access device.

In a third aspect, the present application provides a playback device including a processor and a memory; wherein the processor is configured to call software instructions in the memory to perform the following operations: access through a first network connected to The device caches the media data from the streaming media server to the memory to play the media data. Determine the reserved media data from the buffered media data, the condition of the reserved media data after the transceiver is disconnected from the first network access device and is not connected to the second network access device Is not played. When the transceiver is disconnected from the first network access device, the first part of the buffered media data is played. When the transceiver is connected to the second network access device, playing the second part of the buffered media data, and buffering the media data from the streaming media server through the second network access device; wherein the buffered media The data includes the first part of the buffered media data and the second part of the buffered media data, and the second part of the buffered media data includes the reserved media data.

With reference to the third aspect, in a first possible implementation manner of the third aspect, after disconnecting from the first network access device, when the processor plays the cached media data to the reserved media When the data is not yet connected to the second network access device, the buffered media data in the second part is equal to the reserved media data. The processor is further configured to: after disconnecting from the first network access device, when the processor plays the buffered media data to the reserved media data, the processor is not connected to the second network access device and pauses Play the above reserved media data. The processor is further specifically configured to: when connected to the second network access device, play the reserved media data. That is, after disconnecting from the first network access device, if the playback device has not established a connection with the second network access device, the playback device pauses when playing the buffered media data to the reserved media data. Play. In this way, after the playback device is disconnected from the network, as long as unplayed media data is reserved, as much media data as possible can be played for users to watch.

With reference to the third aspect, in a second possible implementation manner of the third aspect,

When connected to the second network access device, the processor has not yet played to the reserved media data, and the buffered media data in the second part is larger than the reserved media data. That is to say, when the playback device has not played the reserved media data, the playback device has been connected to the second network access device, and the playback can continuously play the media data without interruption during the process of disconnecting the network to re-entering the network. Pause improves the viewing experience for users.

With reference to the third aspect, or any one of the first to second possible implementation manners of the third aspect, in the third possible implementation manner of the third aspect, the third possible implementation manner of the second aspect In the above, the playing time of the reserved media data is determined by the historical experience value of the time required for the transceiver to obtain an IP address, and the IP address is used by the transceiver to buffer the media data from the streaming media server through a network access device. That is to say, the playback device can determine the playback duration of the reserved media data according to the historical experience value of the IP address obtained by the playback device. In this way, after the network disconnection and reconnection, the playback device does not need to wait to obtain the IP address before starting to play the media data, which reduces the waiting time for the user to view the media data.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the first aspect, the foregoing historical experience value includes multiple time values required to obtain the IP address multiple times. The reserved media data is determined by the historical experience value of the time required to obtain the IP address, and specifically includes: taking the average time value of the multiple time values required to obtain the IP address multiple times as the playing time of the reserved media data. Or, taking the maximum time value among the multiple time values as the playing duration of the reserved media data. In other words, the playback device can determine the playback time of the reserved media data based on the time required to obtain the IP address multiple times in the historical experience value, and more accurately determine the playback time of the reserved media data, reducing the playback The probability that the media data playback is interrupted after the device reconnects to the second network access device.

With reference to the third aspect, in a fifth possible implementation manner of the third aspect, the transceiver is specifically configured to connect to the second network access device through a wired communication connection. The processor is specifically configured to: when detecting that the state of the wired network port is switched from the disabled state to the enabled state, play the second part of the buffered media data. That is, if the playback device is wired to the second network access device, the playback device can play the second part of the buffered media when it detects that the state of the wired network port is switched from the disabled state to the enabled state. data.

The transceiver is specifically configured to connect to the second network access device through a wireless communication connection. The processor is specifically configured to: when the identity authentication of the wireless communication connection is completed with the second network access device, play the media data buffered in the second part. That is to say, if the playback device is wirelessly connected to the second network access device, the playback device can play the second part of the buffered media data when completing the identity authentication of the wireless communication connection with the second network access device.

According to a fourth aspect, the present application provides a computer-readable storage medium. The computer-readable storage medium stores program instructions. When the program instructions run on a processor, the first aspect or any one of the first aspects is implemented. One possible implementation is the method described.

In a fifth aspect, the present application provides a computer program product, which is characterized in that when the computer program product runs on a processor, the first aspect or the method described in any possible implementation manner of the first aspect is implemented .

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings needed to be used in the embodiments of the present application will be described below.

FIG. 1 is a schematic architecture diagram of a multimedia system involved in this application;

2 is a schematic flowchart of a media playback method according to an embodiment of the present application;

3 is a schematic flowchart of a media playback method according to another embodiment of the present application;

FIG. 4 is a schematic diagram of displaying playback progress according to an embodiment of the present application; FIG.

FIG. 5 is a schematic diagram of displaying playback progress according to another embodiment of the present application; FIG.

6 is a schematic structural diagram of a playback device according to an embodiment of the present application;

7 is a schematic structural diagram of a playback device according to another embodiment of the present application;

FIG. 8 is a schematic diagram of information interaction between internal devices of a playback device according to an embodiment of the present application.

detailed description

The terms “first”, “second”, and the like in the description embodiments and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a series of steps or units. The methods, systems, products, or devices are not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products, or devices.

It should be understood that in the present application, "at least one (item)" means one or more, and "multiple" means two or more. "And / or" is used to describe the association relationship of related objects, which means that there can be three kinds of relationships, for example, "A and / or B" can mean: only A, B, and both A and B Where A and B can be singular or plural. The character "/" generally indicates that the related objects are an "or" relationship. "At least one or more of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one (a), a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c" ", Where a, b, and c can be single or multiple.

The terms used in the implementation part of this application are only used to explain specific examples of this application,

The following describes the embodiments of the present application with reference to the drawings in the embodiments of the present application.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of a multimedia system architecture provided by an embodiment of the present application. The multimedia system architecture 100 may include the Internet 101, a streaming media server 102, a network access device 103, and a playback device 104. among them:

The streaming media server 102 may be a widely distributed video server or a content distribution network (CDN) server based on the Internet 101.

The network access device 103 may be a router, which may support a dynamic host configuration protocol (DHCP) function, and may be used to dynamically assign an IP address to the playback device 104. The network access device 103 may perform a wired communication connection or a wireless communication connection with the playback device 104.

The playback device 104 may be a laptop computer, a set-top box (STB), a personal computer (PC), a tablet computer, an interactive personal television (IPTV) ), A smart handheld device (SHD). After receiving the IP address allocated by the network device 103, the playback device 104 can access the Internet 101 and download multimedia data from the streaming server 102 in the Internet 101.

Based on the multimedia system architecture shown in FIG. 1 described above, a media playback method provided in the present application is introduced below.

Please refer to FIG. 2. FIG. 2 is a schematic flowchart of a media playback method according to an embodiment of the present application. As shown in FIG. 2, the media playback method may include S201-S212. The second network access device may be a first network access device, and the second network access device may also be a network access device other than the first network access device.

S201. The playback device sends an access request for media data to the first network access device.

The source IP address and destination IP address can be carried in the media data access request. The source IP address in the media data access request is used to indicate the IP address of the playback device, and the destination IP address in the media data access request is used to indicate the media data. The IP address of the streaming server. After receiving the access request for the media data sent by the playback device, the first network access device may directly forward the access request for the media data to the streaming media server or the streaming media server through another network device according to the source IP address.

S202. The playback device obtains the media data forwarded by the first network access device.

After receiving the media data access request, the streaming media server may send the media data to the first network access device, and the media data may carry a source IP address and a destination IP address. The source IP address carried in the media data is used to indicate the IP address of the streaming media server, and the destination IP address carried in the media data is used to indicate the IP address of the playback device. The first network access device receives the media data sent by the streaming media server. After that, the media data can be sent to the playback device according to the destination IP address carried in the media data, and the playback device can obtain the media data.

S203: The playback device buffers and plays the media data.

The media data may be video data, audio data, and the like. The playback device can support playback control functions such as start, stop, rewind, fast forward or pause of media data.

S204. The playback device determines the reserved media data from the buffered media data. After the reserved media data is disconnected from the first network access device of the playback device and is not connected to the second network access device, it is not played.

The playback time of the reserved media data can be 1s, 2s, 3s or longer. Optionally, the playback duration of the reserved media data may also be determined by a historical experience value, and the historical experience value may be determined by a time value required for the playback device to obtain an IP address. In a possible implementation manner, the historical experience value may also be determined by multiple time values required by the playback device to obtain the IP address multiple times, and the playback duration of the reserved media data may be the multiple obtained IP addresses. The average time value or the maximum time value of the required time value, or a time value calculated by other algorithms according to the time required to obtain the IP address multiple times. For example, for example, in the historical experience value, the playback device obtained a total of 3 IP addresses. The first time to obtain the IP address was 2s, the second time to obtain the IP address was 1s, and the third time to obtain the IP address. The time taken by the address is 3s, then the playback device may determine the maximum time value of the three times taken to obtain the IP address as the playback time of the reserved media data, that is, determine that the playback time of the reserved media data is 3s. The examples are only used to explain the application and should not be construed as limiting. In this way, the playback device records the time required to obtain an IP address each time, and then in the case that the playback device is disconnected from the network, the length of the appropriate reserved media data can be determined according to the time required to obtain the IP address before, reducing the playback device Chance of media data playback interruption after reconnecting to the second network access device.

S205. When the playback device is disconnected from the first network access device, play the first part of the buffered media data.

The buffered media data includes the first portion of the buffered media data and the second portion of the buffered media data, and the second portion of the buffered media data includes the reserved media data. The first part of the buffered media data may be the buffered media data played by the playback device within a period of time after the playback device disconnects from the first network access device and connects to the second network access device. The second part of the buffered media data may be media data that has been buffered but not played by the playback device when connected to the second network access device.

The disconnection of the communication connection between the playback device and the first network access device may be a disconnection of a wired communication connection or a disconnection of a wireless communication connection. If the wired communication connection between the playback device and the first network access device is disconnected, the playback device can detect the status of the wired network port on the playback device to determine whether the communication connection with the first network access device is disconnected. If the state of the wired network port on the playback device is switched from enabled to disabled, it can be determined that the communication connection between the playback device and the first network access device has been disconnected. If there is a wireless communication connection between the playback device and the first network access device, the playback device may periodically send an access request to the first network access device; if the playback device cannot receive the access request from the first network access device Response, the playback device may determine that the communication connection between the playback device and the first network access device has been disconnected.

S206. The playback device establishes a connection with the second network access device.

The playback device may establish a wired communication connection with the second network access device, or may establish a wireless communication connection with the second network access device.

If the playback device establishes a wired communication connection with the second network access device, the playback device can detect the network port status of the playback device to determine whether to establish a wired communication connection with the second network access device. If the playback device detects playback The state of the wired network port of the device is switched from the disabled state to the enabled state, and the playback device may determine that the playback device establishes a wired communication connection with the second network access device.

If the playback device establishes a wireless communication connection with the second network access device, the playback device can detect whether the playback device and the second network access device have completed the identity authentication of the wireless communication connection. If the identity authentication is completed, the playback device can It is determined that the playback device establishes a wireless communication connection with the second network access device. The process of establishing wireless communication between the playback device and the second network access device may be first, the playback device scans the wireless signal sent by the second network access device, and then the playback device may perform identity authentication with the second network access device. Finally, when the playback device and the second network access device have completed identity authentication, the playback device and the second network access device can complete the establishment of a communication connection. The identity authentication method between the playback device and the second network access device may include: open-system authentication, shared-key authentication, and pre-shared key , PSK) certification.

S207. When the playback device is connected to the second network access device, the playback device plays the second part of the buffered media data.

Optionally, after the playback device is disconnected from the first network access device, when the buffered media data is played to the reserved media data, the second playback device is not connected to the second network access device, and the playback device is paused. Playing the buffered media data, the second part of the buffered media data is equal to the reserved media data. That is, after the playback device is disconnected from the first network access device, if the playback device has not established a connection with the second network access device, the playback device plays the buffered media data to the reserved media data. Pause playback from time to time. In this way, after the playback device is disconnected from the network, as long as unplayed media data is reserved, as much media data as possible can be played for users to watch.

Optionally, when connecting to the second network access device, the playback device has not yet played the reserved media data, and the second part of the buffered media data is larger than the reserved media data, The playback device can continue to cache normally and continue to play media data without the interruption of playback caused by unbuffered data to play. That is to say, when the playback device has not played the reserved media data, the playback device has been connected to the second network access device, and the playback can continuously play the media data without interruption during the process of disconnecting the network to re-entering the network. Pause improves the viewing experience for users.

S208. Under the condition that the playback device is connected to the second network access device, the playback device sends a request for obtaining an IP address to the second network access device.

S209. The playback device obtains an IP address allocated by the second network access device to the playback device.

The playback device may obtain an IP address based on a dynamic host configuration protocol (DHCP) mechanism. Therefore, the DHCP client is a playback device, and the DHCP server may be a second network access device, or it may be another device connected to the local area network or wireless local area network where the second network access device is located.

The following uses the DHCP server as the second network access device as an example to specifically describe the process in which the playback device obtains an IP address. The following examples are only used to explain the application and should not be construed as limiting.

First, the playback device sends a request for obtaining an IP address to the second network access device. The request for obtaining the IP address may be DHCP discovery information. The playback device sends the DHCP discovery information in a broadcast manner to find the DHCP through the second network access device. server. Then, the second network access device serving as the DHCP server can receive the DHCP discovery information, and the second network access device selects one of the IP addresses that have not been allocated and assigns it to the playback device, that is, the playback device can receive the first The DHCP providing information sent by the network access device includes the IP address allocated to the playback device. If there are multiple DHCP servers, the playback device can only accept the first DHCP provided information. Then, after the playback device receives the DHCP provided information sent by the second network access device, the playback device may broadcast the DHCP request information, which includes the IP address requested from the DHCP server selected by the playback device. Finally, after the second network access device receives the DHCP request information sent by the playback device, the second network access device may send a DHCP confirmation message to the playback device, and the confirmation information includes the IP allocated by the second network access device to the playback device. address.

Optionally, the second network access device and the first network access device may be in the same local area network or wireless local area network. That is to say, the playback device is reconnected to the local area network or wireless local area network before disconnecting from the first network access device. At this time, the playback device may not need to send DHCP discovery information anymore, but directly broadcast the information including the previous DHCP request information for the IP address assigned to the playback device at a time. When the second network access device receives the DHCP request message with the IP address previously assigned to the playback device, the second network access device sends a DHCP confirmation message to the playback device, so that the playback device continues to use the last time it was allocated. IP address. If the IP address previously allocated to the playback device can no longer be allocated to the playback device, the second network access device may send a DHCP denial message to the playback device, and the DHCP denial information is used to instruct the playback device to send the above DHCP discovery information to obtain The new IP address.

Under the condition that the playback device is connected to the second network access device, the playback device may perform step S207, while the playback device plays the buffered but unplayed media data, and simultaneously execute step S208, when the playback device is connected to the second network access device. Under the condition of the network access device, the playback device sends a request for obtaining an IP address to the second network access device, and S209, the playback device obtains the IP address allocated by the second network access device to the playback device. In this way, after disconnecting from the first network access device, the execution time of the process of obtaining the IP address of the playback device can be provided through the reserved time, which reduces the waiting time for the playback device to resume playback.

S210: The playback device sends an access request for media data to the second network access device.

The source IP address and destination IP address can be carried in the media data access request. The source IP address in the media data access request is used to indicate the IP address of the playback device, and the destination IP address in the media data access request is used to indicate the media data. The IP address of the streaming server. After receiving the access request for the media data sent by the playback device, the second network access device may directly forward the access request for the media data to the streaming media server or the other media devices to the streaming media server according to the source IP address.

S211. The playback device obtains the media data forwarded by the second network access device.

After receiving the media data access request, the streaming media server may send the media data to the second network access device, and the media data may carry a source IP address and a destination IP address. The source IP address carried in the media data is used to indicate the IP address of the streaming media server, the destination IP address in the media data is used to indicate the IP address of the playback device, and the second network access device receives the media data sent by the streaming media server. After that, the media data can be sent to the playback device according to the destination IP address carried in the media data, and the playback device can obtain the media data.

S212. The playback device continues to buffer and play media data.

The playback device may continue to cache and play the media data when the playback device is disconnected from the first network access device. For example, when the playback device is disconnected from the first network access device, the playback device caches a video at 30 minutes and 20 seconds, and then after the playback device obtains the media data forwarded by the second network access device, the playback The device can continue to cache the video from 30 minutes and 20 seconds. The examples are only used to explain the application and should not be construed as limiting.

In the embodiment of the present application, the playback device plays the data of the first media while buffering from the streaming media server. When the playback device is disconnected from the first network access device, the playback device may determine the reserved media data, and The reserved media data is left to be played when the playback device is connected to the second network access device, and an IP address may be obtained by using the playback time of the reserved media data. In this way, when the network disconnection is restored, the time point of playing the media data can be advanced, the time that the user waits for the media data to be played after the network disconnection is restored, and the user experience is improved.

Based on the embodiment shown in FIG. 2 above, a possible situation is specifically described below. When the playback device disconnects from the first network access device, the reserved media data is determined. If the playback device plays media data to the reserved media data, the playback device has not yet established a connection with the second network device. , The playback device can pause playing media data.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a media playback method according to an embodiment of the present application. As shown in FIG. 3, the media playback method may include S301-S313.

S301. The playback device sends an access request for media data to the first network access device.

For details, reference may be made to step S201 in the embodiment of FIG. 2, and details are not described herein.

S302. The playback device obtains the media data forwarded by the first network access device.

For details, reference may be made to step S202 in the embodiment in FIG. 2, and details are not described herein.

S303. The playback device buffers and plays the media data.

For details, reference may be made to step S203 in the embodiment in FIG. 2, and details are not described herein.

S304. The playback device determines the reserved media data from the buffered media data. After the reserved media data is disconnected from the first network access device of the playback device and is not connected to the second network access device, it is not played.

For details, reference may be made to step S204 in the embodiment shown in FIG. 2, and details are not described herein.

S305. When the playback device is disconnected from the first network access device, the first part of the buffered media data is played.

S306. When the playback device is playing the reserved media data, the playback device is not connected to the second network access device, the playback device pauses playing the buffered media data.

For example, for example, when the playback device is disconnected from the first network access device, the playback device plays media data at a total time of 28 minutes and 40 seconds, and the playback device determines the time for the reserved media data. The segment is a period from 30 minutes and 18 seconds to 30 minutes and 20 seconds of the total length of the media data. The playback device continues to play media data to 30 minutes and 18 seconds of the total media data length. If the playback device is not connected to the second network access device, the playback device can pause at 30 minutes and 18 seconds of the total media data length. Play. The examples are only used to explain the application and should not be construed as limiting.

S307. The playback device establishes a connection with the second network access device.

If the playback device establishes a wireless communication connection with the second network access device, the playback device can detect whether the playback device and the second network access device have completed the identity authentication of the wireless communication connection. If the identity authentication is completed, the playback device can It is determined that the playback device establishes a wireless communication connection with the second network access device. The process of establishing wireless communication between the playback device and the second network access device may be first, the playback device scans the wireless signal sent by the second network access device, and then the playback device may perform identity authentication with the second network access device. Finally, when the playback device and the second network access device have completed identity authentication, the playback device and the second network access device can complete the establishment of a communication connection. The identity authentication method between the playback device and the second network access device may include: open system identity authentication, shared key authentication, pre-shared key authentication, and the like.

S308. When the playback device is connected to the second network access device, the playback device plays the second part of the buffered media data.

The second part of the buffered media data may be reserved media data. Under the condition that the playback device is connected to the second network access device, the playback device can continue to play the reserved media from the point where the playback device pauses playing media data when the playback device is not connected to the second network access device. data. For example, when the playback device is disconnected from the first network access device, the playback device determines that the time period of the reserved media data is a time period from 30 minutes and 18 seconds to 30 minutes and 20 seconds, After the playback device is connected to the second network access device, the playback device can continue to play the video from a total length of 30 minutes and 18 seconds of the media data. The examples are only used to explain the application and should not be construed as limiting.

S309. Under the condition that the playback device is connected to the second network access device, the playback device sends a request for obtaining an IP address to the second network access device.

For details, reference may be made to step S208 in the embodiment in FIG. 2 described above, and details are not described herein.

S310: The playback device obtains an IP address allocated by the second network access device to the playback device.

For details, reference may be made to step S209 in the embodiment shown in FIG. 2, and details are not described herein.

S311. The playback device sends an access request for media data to the second network access device.

For details, reference may be made to step S210 in the embodiment in FIG. 2 described above, and details are not described herein.

S312: The playback device obtains the media data forwarded by the second network access device.

For details, refer to step S211 in the embodiment in FIG. 2 described above, and details are not described herein.

S313. The playback device continues to buffer and play media data.

For details, reference may be made to step S212 in the embodiment of FIG. 2 described above, and details are not described herein.

In the embodiment of the present application, the playback device plays media data from the streaming media server while buffering. The playback device can determine the reserved media data. After disconnecting from the first network access device, if the playback device has not been connected to the first network access device, When the second network access device establishes a connection, the playback device pauses playback when it plays the buffered media data to the reserved media data. In this way, after the playback device reconnects to the network device, the reserved media data can be played and played back. The reserved media data obtains an IP address during this time and successfully accesses the streaming media server, that is, after the disconnection and reconnection, because the media data is reserved, the reserved media can be played immediately after reconnecting to the access network device Data does not need to wait to re-establish a connection with the streaming media server, which improves the user experience.

Based on the embodiment shown in FIG. 3 and FIG. 4, when the playback device plays the reserved media data, the playback device is not connected to the second network access device, the playback device pauses playing the media data. FIG. 4 is a schematic diagram of a playback progress display in an embodiment of the present application.

As shown in Figure 4, the display progress of the media data is divided into four stages:

The first stage is the stage of buffering and playing the media data before the playback device disconnects from the first network access device. In the first stage, the playback device normally accesses the streaming media server, so the playback device can play media data while caching.

The second stage is a stage in which the playback device is disconnected from the first network access device, and the playback device suspends playback but does not cache the media data when the playback device plays the reserved media data. After the playback device is disconnected from the first network access device, the playback device pauses buffering the media data, but after determining the reserved media data, the playback device can continue to play the media data until the reserved media data is played. At the start time, playback is paused.

The third stage is a stage in which the playback device is connected to the second network access device and continues to play the reserved media data. In the third stage, when the playback device detects a connection with the second network access device, the playback device can continue to play the reserved media data.

The fourth stage is a stage in which the playback device plays while buffering after the playback device accesses the streaming media server. When the playback device accesses the streaming media server, the media data can be obtained. Therefore, the playback device can continue to cache the media data from the end time of the reserved media data while playing the media data.

In a possible case, after the playback device is disconnected from the first network access device, the playback device has not yet played to the start time of the reserved media data, and the playback device has been connected to the second network access device. , The playback device can play the media data continuously. In this way, the playback device can continuously play media data while reconnecting quickly after disconnection, improving the user experience. The possible situation is described in detail below with reference to FIG. 5.

As shown in Figure 5, the display progress of the media data is divided into four stages:

The second stage is the stage where the playback device is disconnected from the first network access device, and the playback device is connected to the second network access device. After the playback device is disconnected from the first network access device, the playback device may continue to play the media data after determining the reserved media data.

The third stage is a stage in which the playback device plays from the connection to the second network access device to the playback device to the starting time point of the reserved media data. In the third stage, the playback device can continuously play media data.

The fourth stage is the stage from when the playback device starts to the reserved media data to when the playback device accesses the streaming media server. In the fourth stage, the playback device can also continuously play the reserved media data. After the playback device accesses the streaming media server, the playback device can continue to play media data while buffering.

Please refer to FIG. 6, which is a schematic structural diagram of a playback device 600 provided by the present application. The playback device 600 may be the playback device 104 in the multimedia system architecture of FIG. 1. As shown in FIG. 6, the playback device 600 may include a buffer unit 610, a playback unit 620, and a determination unit 630. among them,

The buffering unit 610 may be configured to buffer media data from the streaming media server through the first network access device connected to the buffering unit;

A playing unit 620, configured to play the media data;

The determining unit 630 may be configured to determine the reserved media data from the cached media data, where the reserved media data is disconnected after the playback device 600 is disconnected from the first network access device and is not connected. Is not played under the condition of accessing the second network access device;

The playing unit 620 is further configured to play the first part of the buffered media data when disconnected from the first network access device;

The playback unit 620 is further configured to play the second part of the buffered media data when the playback device 600 is connected to the second network access device, and cache the media data from the streaming media server through the second network access device. Media data; wherein the cached media data includes the first part of the cached media data and the second part of the cached media data, and the second part of the cached media data includes the reserved Media data.

In this application, the second network access device may be the first network access device, or may be another network access device other than the first network access device. By playing the first media data from the streaming media server while buffering, when the playback device 600 is disconnected from the first network access device, the playback device 600 can determine the reserved media data and use the reserved media The data is left to be played when the playback device is connected to the second network access device, and an IP address can be obtained by using the reserved playback time of the media data. In this way, when the network disconnection is restored, the time point of playing the media data can be advanced, the time that the user waits for the media data to be played after the network disconnection is restored, and the user experience is improved.

In some optional embodiments, after the playback device 600 is disconnected from the first network access device, when the playback unit 620 plays the buffered media data to the reserved media data, it plays The device 600 has not been connected to the second network access device, and the second part of the buffered media data is equal to the reserved media data. At this time, the playback unit 620 may be further configured to: pause playback of the reserved media data. The playback unit 620 may be specifically configured to: when the playback device 600 is connected to the second network access device, play the reserved media data. That is, after disconnecting from the first network access device, if the playback device has not established a connection with the second network access device, the playback device pauses when playing the buffered media data to the reserved media data. Play. In this way, after the playback device is disconnected from the network, as long as unplayed media data is reserved, as much media data as possible can be played for users to watch.

In some optional embodiments, when connected to the second network access device, the playback unit 620 has not yet played the reserved media data, and the second part of the buffered media data is larger than the reserved media data. Reserved media data. That is to say, when the playback device has not played the reserved media data, the playback device has been connected to the second network access device, and the playback can continuously play the media data without interruption during the process of disconnecting the network to re-entering the network. Pause improves the viewing experience for users.

In some optional embodiments, the playback device 600 further includes an obtaining unit 640. The playback duration of the reserved media data is determined by the historical experience value of the time required for the obtaining unit 640 to obtain an IP address, and the IP address is used by the cache unit 630 to cache the media from the streaming media server through a network access device. data. That is to say, according to the historical experience value of the IP address obtained by the playback device, the playback duration of the reserved media data can be determined. In this way, after disconnecting the network and reconnecting, it is not necessary to wait to obtain the IP address before starting to play the media data, which reduces the waiting time for users to view the media data.

In some optional embodiments, the historical experience value may include multiple time values required by the obtaining unit 640 to obtain the IP address multiple times. The foregoing reserved media data is determined by the historical experience value of the time required by the obtaining unit 640 to obtain the IP address, and may specifically include: taking the average time value of the multiple time values required for obtaining the IP address multiple times as the pre- Playing time of the reserved media data; or taking the maximum time value among the plurality of time values as the playing time of the reserved media data. In other words, the playback device can determine the playback time of the reserved media data based on the time required to obtain the IP address multiple times in the historical experience value, and more accurately determine the playback time of the reserved media data, reducing the playback The probability that the media data playback is interrupted after the device reconnects to the second network access device.

In some optional embodiments, the playback device 600 may be specifically configured to connect to the second network access device through a wired communication connection. The playback unit 620 may be specifically configured to: when the state of the wired network port of the playback device 600 is switched from the disabled state to the enabled state, play the second part of the buffered media data. That is, if the playback device is wired to the second network access device, the playback device can play the second part of the buffered media when it detects that the state of the wired network port is switched from the disabled state to the enabled state. data.

In some optional embodiments, the playback device 600 may be specifically configured to connect to the second network access device through a wireless communication connection. The playback unit 620 may be specifically configured to: when the playback device 600 and the second network access device complete the identity authentication of the wireless communication connection, play the second buffered media data. That is to say, if the playback device is wirelessly connected to the second network access device, the playback device can play the second part of the buffered media data when completing the identity authentication of the wireless communication connection with the second network access device.

It can be understood that, for specific implementation of each functional unit included in the playback device 600, reference may be made specifically to the foregoing method embodiment in FIG. 2 or FIG.

Please refer to FIG. 7, which is a schematic structural diagram of a playback device 700 provided by the present application. As shown in FIG. 7, the playback device 700 may include a processor 710, a transceiver 720, a memory 730, an output circuit 740, and a bus 750. The processor 710, the transceiver 720, the memory 730, and the output circuit 740 are connected to each other through a bus 750. Optionally, the playback device 700 may further include a display screen and an audio circuit, and the display screen and the audio circuit may be connected to the output circuit. The display screen is used to display a dynamic or static picture when the playback device plays media data, and the audio circuit is used to When the playback device plays the media data, it outputs the audio of the media data. In an optional case, the playback device 700 may be a playback chip. In this case, the playback device may include a processor, a memory, and some interface circuits.

The processor invokes software instructions in the memory to perform steps of one or more methods of the foregoing method embodiments.

The processor 710 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP. The processor 1001 may further include a hardware chip. The above hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.

The transceiver 720 may include a baseband processing unit, a digital-to-analog conversion unit, and a radio frequency channel module. Among them, the baseband processing unit may include a digital signal processor (DSP), a microcontroller (microcontrol unit), a code converter and a submultiplexer (TCSM) (for completing Using demultiplexing and code conversion functions). The baseband processing unit can be used to synthesize the baseband signal to be transmitted or to decode the received baseband signal. Digital-to-analog conversion is used to perform digital-to-analog conversion on the baseband signal to be transmitted or the received baseband signal. The radio frequency channel module may include a transmitter (TX) and a receiver (RX). The transmitter (TX) may be used to perform transmission processing on a signal output by the playback device 700. The receiver (RX) can be used to receive the signal received by the antenna. The antenna may be coupled with the transceiver 720 to complete the transmission processing of the signal output by the playback device 700 and the reception processing of the signal received by the playback device 700.

The memory 730 is coupled to the processor 710 and is configured to store various software programs and / or multiple sets of instructions. The memory 730 may include volatile memory (volatile memory), such as random-access memory (RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory ( flash memory). The memory may also include a combination of the above-mentioned kinds of memories. The memory 730 may cache media data and may also store an operating system. The memory 730 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more communication devices.

The transceiver 720 may be configured to obtain media data from a streaming media server through a first network access device connected to the transceiver. The memory 730 may be configured to buffer the media data. The processor 710 may be configured to play the media data. The transceiver 720 may be further configured to detect that the communication connection between the playback device 700 and the first network access device is disconnected.

The processor 710 may be further configured to determine the reserved media data from the cached media data, where the reserved media data is not connected to the first network access device after the transceiver 720 is disconnected, and Not connected to the second network access device.

The processor 710 may be further configured to play the first part of the buffered media data when the transceiver 720 is disconnected from the first network access device.

The processor 710 may be further configured to play the second part of the buffered media data when the transceiver 720 is connected to the second network access device, and the processor 710 caches the media data from the streaming media server through the second network access device Media data; wherein the buffered media data includes the first part of the buffered media data and the second part of the buffered media data, and the second part of the buffered media data includes the reserved media data.

In the embodiment of the present application, the playback device plays media data from the streaming media server while buffering. When the playback device is disconnected from the first network access device, the playback device can determine the reserved media data. When the playback device plays to When the media data is reserved, when the playback device is not connected to the second network access device, the playback is paused, and when the playback device is connected to the second network access device, the reserved media data is played. And the IP address can be obtained using the reserved playing time of the media data. In this way, when the network is restored, the waiting time for obtaining an IP address is saved, the playback of media data is quickly resumed, and the user experience is improved.

Based on the schematic structural diagram of the playback device 700 shown in FIG. 7, the following describes the cooperative relationship of information interaction among various devices in the playback device 700 in detail. Please refer to FIG. 8, which illustrates a schematic diagram of information interaction of internal devices of a playback device according to an embodiment of the present application.

1-2. The transceiver 720 accesses the streaming media server through the connected first network access device, and obtains the media data in the streaming media server.

3-8. First, the transceiver 720 may notify the processor 710 of the message of obtaining the media data, and then, after receiving the notification message, the processor 710 may instruct the memory 730 to cache the media data. Then, the memory 730 buffers the media data acquired by the transceiver 720. While the memory 730 caches the media data, the processor 710 may play the buffered media data and instruct the output circuit 740 to output pictures and sounds in the media data.

9-16. First, after detecting that the transceiver 720 is disconnected from the first network access device, the transceiver 720 may notify the processor 710 that the playback device 700 has disconnected from the first network access device. Then, the processor 710 may instruct the memory to temporarily buffer the media data and determine the reserved media data, and the reserved media data is played only under the condition that the playback device 700 is connected to the second network access device. At the initial point in time when the processor 710 plays the media data reserved by the media data value, if no notification is received from the transceiver 720 to connect to the second network access device, the processor 710 pauses playing the media data and instructs the output The circuit displays a still frame picture when paused.

17-23. First, under the condition that the transceiver 720 is connected to the second network access device, the transceiver 720 may notify the processor 710 that a connection has been established with the second network access device. Then, the processor 710 may continue to play the buffered but unplayed media data, and instruct the output circuit to output a display screen and sound of the media data. While the processor 710 continues to play the buffered but unplayed media data, the transceiver 720 may perform a process of obtaining an IP address through the second network access device.

24-28. After obtaining the IP address, the transceiver 720 can access the streaming media server and continue to obtain media data from the streaming media server. The transceiver 720 may notify the processor 710 of the message that the media data is acquired. After receiving the notification message, the processor 710 may instruct the memory 730 to cache the media data. While the memory 730 caches the media data, the processor 710 continues to play the buffered media data and instructs the output circuit 740 to output pictures and sounds in the media data.

The above FIG. 8 only exemplarily illustrates an embodiment of the present application from the internal devices of the playback device 700. Regarding other embodiments of the present application, an adaptive adjustment process may be adopted. For parts that are not described in detail, refer to FIG. 2 The embodiment is not repeated here.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present invention are wholly or partially generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, a computer, a server, or a data center. Transmission via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes one or more available medium integration. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD), etc.).

In summary, implementation of the embodiments of the present invention can support flexible bandwidth transmission and can better adapt to the multi-bandwidth scenario supported by the next-generation new air interface technology.

A person of ordinary skill in the art may understand that all or part of the processes in the method of the foregoing embodiments are implemented. The processes may be completed by a computer program instructing related hardware. The program may be stored in a computer-readable storage medium. It may include the processes of the method embodiments described above. The foregoing storage media include: ROM or random storage memory RAM, magnetic disks, or optical discs, which can store various program code media.

Claims

A method for playing media, comprising:

Buffering media data from a streaming media server through a first network access device connected to the first network access device, and playing the media data;

Determining the reserved media data from the cached media data, the condition of the reserved media data being disconnected from the first network access device and not being connected to the second network access device Not be played

When disconnected from the first network access device, playing the first part of the buffered media data;

When connected to the second network access device, playing the second part of the buffered media data, and buffering the media data from the streaming media server through the second network access device; wherein the buffered The media data includes the first part of the buffered media data and the second part of the buffered media data, and the second part of the buffered media data includes the reserved media data.
The method according to claim 1, characterized in that, after the disconnection from the first network access device, when the buffered media data is played to the reserved media data, it has not been connected to For the second network access device, the second part of the buffered media data is equal to the reserved media data, and the method further includes:

Pause playing the cached media data;

When the second network access device is connected, playing the second part of the buffered media data includes:

When connected to the second network access device, playing the reserved media data.
The method according to claim 1, characterized in that when connected to the second network access device, the reserved media data has not been played yet, and the second part of the buffered media data is larger than the reserved media data Reserved media data.
The method according to any one of claims 1 to 3, wherein a playback duration of the reserved media data is determined by a historical experience value of a time required to obtain an IP address, and the IP address is used to access a device through a network Buffering the media data from the streaming media server.
The method according to claim 4, wherein the historical experience value comprises a plurality of time values required for obtaining the IP address multiple times;

The playback duration of the reserved media data is determined by the historical experience value of the time required to obtain the IP address, and specifically includes:

Taking the average time value of the multiple time values required for obtaining the IP address multiple times as the playing duration of the reserved media data; or,

The maximum time value among the multiple time values is taken as the playing duration of the reserved media data.
The method according to claim 1, wherein the connecting to the second network access device comprises: connecting to the second network access device through a wired communication connection;

When the second network access device is connected, playing the second part of the buffered media data specifically includes:

When it is detected that the state of the wired network port is switched from the disabled state to the enabled state, the second part of the buffered media data is played; the wired network port is used to connect to the second network access device.
The method according to claim 1, wherein the connecting to the second network access device comprises: connecting to the second network access device through a wireless communication connection;

When the second network access device is connected, playing the second part of the buffered media data specifically includes:

When the identity authentication of the wireless communication connection is completed with the second network access device, the second part of the buffered media data is played.
A playback device, comprising:

A buffering unit, configured to buffer media data from a streaming media server through a first network access device connected to the buffering unit;

A playback unit, configured to play the media data;

A determining unit, configured to determine the reserved media data from the cached media data, where the reserved media data is disconnected from the first network access device and is not connected to the first network access device; It will not be played under the condition of two network access devices;

The playing unit is further configured to play the first part of the buffered media data when disconnected from the first network access device;

The playing unit is further configured to, when connected to the second network access device, play the second part of the buffered media data, and cache the media data from the streaming media server through the second network access device. ; Wherein the cached media data includes the first part of the cached media data and the second part of the cached media data, and the second part of the cached media data includes the reserved media data .
The playback device according to claim 8, characterized in that after the playback device is disconnected from the first network access device, when the playback unit plays the buffered media data to the reservation The media data, the playback device has not been connected to the second network access device, and the second part of the buffered media data is equal to the reserved media data;

The playback unit is further configured to:

After the playback device is disconnected from the first network access device, when the media module plays the buffered media data to the reserved media data, the playback device is not connected to the first Two network access devices, which pause playing the reserved media data;

The playback unit is further specifically configured to:

When the playback device is connected to the second network access device, the reserved media data is played.
The playback device according to claim 8, characterized in that when connected to the second network access device, the playback unit has not yet played to the reserved media data, and the second part has been cached The media data is larger than the reserved media data.
The playback device according to any one of claims 8 to 10, further comprising: an obtaining unit configured to obtain an IP address; and the playback duration of the reserved media data is obtained by the obtaining unit obtaining the IP address. The time-consuming historical experience value determines that the IP address is used by the cache unit to cache the media data from the streaming media server through a network access device.
The playback device according to claim 11, wherein the historical experience value comprises a plurality of time values required for the obtaining unit to obtain the IP address multiple times;

The reserved media data is determined by the historical experience value of the time required for the obtaining unit to obtain the IP address, and specifically includes:

Taking the average time value of the multiple time values required for obtaining the IP address multiple times as the playing duration of the reserved media data; or,

The maximum time value among the multiple time values is taken as the playing duration of the reserved media data.
The playback device according to claim 8, wherein the playback device is connected to the second network access device through a wired communication connection;

The playback unit is specifically configured to:

When the state of the wired network port of the playback device is switched from the disabled state to the enabled state, the second part of the buffered media data is played.
The playback device according to claim 8, wherein the playback device is connected to the second network access device through a wireless communication connection;

The playback unit is specifically configured to:

When the playback device and the second network access device complete the identity authentication of the wireless communication connection, the second part of the buffered media data is played.
A playback device, characterized in that the playback device includes a processor and a memory; wherein,

The processor is configured to call software instructions in the memory to execute the method according to any one of claims 1-7.
A computer-readable storage medium, characterized in that the computer-readable storage medium stores program instructions, and when the program instructions are run on a processor, the method according to any one of claims 1 to 7 is implemented.