CN111182322A - Director control method and device, electronic equipment and storage medium - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
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- H—ELECTRICITY
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
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- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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Abstract
The disclosure relates to a director control method, a device, electronic equipment and a storage medium, belonging to the technical field of internet, wherein the method comprises the following steps: the method comprises the steps that a first direct-broadcasting server obtains a first direct-broadcasting video stream, if the first direct-broadcasting video stream needs to be directed, a directing address of the first direct-broadcasting video stream is determined, the obtained first direct-broadcasting video stream is stored in a cache region corresponding to the directing address, and then the direct-broadcasting video stream in the cache region is pushed according to the directing address, so that the first direct-broadcasting video stream is directly obtained by the first direct-broadcasting server and directed, the first direct-broadcasting video stream does not need to be forwarded through a screen recording device, the distribution path of the first direct-broadcasting video stream during directing can be shortened, the network delay is small, and therefore the delay of a video picture in the first direct-broadcasting video stream viewed by a user through the directing address is low finally.
Description
Technical Field
The present disclosure relates to the field of internet technologies, and in particular, to a method and an apparatus for controlling a broadcast director, an electronic device, and a storage medium.
Background
Generally, a live broadcast room only has one live broadcast address, and a user can only view a live broadcast video stream of the live broadcast room through one live broadcast address. If a user wants to view different live video streams through one live address, the source of the live video stream corresponding to the live address needs to be switched, the process is called director, at the moment, the live address is also called the director address, and the person who performs the switching operation is the director.
In the related art, a director directs different live video streams to the same live broadcast room by means of a screen recording device. For example, direct broadcast video stream a of live broadcast room a is directed to live broadcast room M, at this moment, the direct broadcast personnel need click live broadcast address a of live broadcast room a in the screen recording device, play live broadcast video stream a in the screen recording device, utilize the screen recording function of screen recording device to record live broadcast video stream a simultaneously, then, send the live broadcast video stream a of recoding for live broadcast server M that live broadcast room M corresponds, broadcast live broadcast video stream a in live broadcast room M by live broadcast server M, thereby accomplish direct broadcast video stream a's direction broadcast. When a live video stream B of another live broadcast room, such as the live broadcast room B, needs to be directed to the live broadcast room M, the director manually switches the live broadcast address a to the live broadcast address B.
In the above scheme, although a user can view live video streams of different live rooms in the live room M, for any live video stream, the live video stream is distributed once when reaching the screen recording device, and needs to be distributed once again when reaching the user terminal from the screen recording device, the distribution path is long, network delay is inevitable, a video picture in the live video stream which is finally viewed by the user in the live room M is delayed, and the screen recording device needs to record the received live video stream while analyzing, and has a high requirement on the operational capability of the screen recording device.
Disclosure of Invention
The present disclosure provides a director control method, device, electronic device and storage medium, to at least solve the problem of large delay of video pictures in a live video stream when a related art is directing the live video stream. The technical scheme of the disclosure is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a director control method applied to a first live broadcast server, including:
acquiring a first direct-playing video stream;
if the first direct-playing video stream needs to be directed, determining a directing address of the first direct-playing video stream;
storing the acquired first direct-broadcasting video stream into a cache region corresponding to the directing address;
and pushing the live video stream in the cache region according to the director address.
In a possible implementation, the first live video stream is from any one of the following devices:
the first direct broadcast server; the video acquisition terminal is administered by the first direct broadcasting server; a second live server; and the video acquisition terminal is administered by the second live broadcast server.
In a possible implementation manner, when the first live video stream comes from the first live server or the second live server, before acquiring the first live video stream, the method further includes:
receiving a broadcast instruction of the first direct-broadcast video stream, wherein the broadcast instruction carries address resource information and broadcast address information of the first direct-broadcast video stream; and
obtaining a first live video stream, comprising:
acquiring the first direct-playing video stream according to the address resource information;
determining a director address of the first live video stream, comprising:
and determining the director address of the first direct-playing video stream according to the director address information.
In one possible embodiment, when the first live video stream is from a video capture terminal administered by the first live server or the second live server,
obtaining a first live video stream, comprising:
receiving the first direct-playing video stream sent by the video acquisition terminal; and
determining a director address of the first live video stream, comprising:
and determining the director address of the first direct-playing video stream according to the stored corresponding relation between the video stream identifier and the director address.
In a possible implementation manner, before storing the acquired first live video stream in the buffer area corresponding to the director address, the method further includes:
and if the obtained coding parameters of the data frame in the first direct-playing video stream are determined not to be matched with the specified coding parameters, carrying out transcoding processing on the data frame according to the specified coding parameters.
In a possible implementation manner, before storing the acquired first live video stream in the buffer area corresponding to the director address, the method further includes:
and modifying the time stamp of each data frame in the first direct-playing video stream according to a preset time stamp modification rule.
In a possible implementation manner, if there is a second live video stream currently being directed at the direction address, storing the acquired first live video stream in a buffer area corresponding to the direction address includes:
after a first data frame in the second live broadcast video stream is stored in the buffer area, switching to store the acquired first live broadcast video stream in the buffer area, wherein the first data frame is a data frame which is adjacent to a second data frame in the second live broadcast video stream and has a timestamp earlier than that of the second data frame, and the second data frame is a data frame which is in the second live broadcast video stream and has the same timestamp as that of a first instant decoding refresh frame in the first live broadcast video stream.
According to a second aspect of the embodiments of the present disclosure, there is provided a director control apparatus applied to a first live broadcast server, including:
an acquisition module configured to perform acquiring a first live video stream;
the determining module is configured to determine a broadcast directing address of the first direct-broadcast video stream if the first direct-broadcast video stream needs to be directed;
the storage module is configured to store the acquired first direct-playing video stream into a cache region corresponding to the director address;
and the pushing module is configured to push the live video stream in the cache region according to the directing address.
In a possible implementation, the first live video stream is from any one of the following devices:
the first direct broadcast server; the video acquisition terminal is administered by the first direct broadcasting server; a second live server; and the video acquisition terminal is administered by the second live broadcast server.
In a possible implementation manner, when the first live video stream comes from the first live server or the second live server, the method further includes:
the receiving module is configured to receive a broadcast directing instruction of a first direct-broadcast video stream before the first direct-broadcast video stream is acquired, where the broadcast directing instruction carries address resource information and broadcast directing address information of the first direct-broadcast video stream;
the obtaining module is specifically configured to obtain the first direct-playing video stream according to the address resource information;
the determining module is specifically configured to determine a broadcast directing address of the first live video stream according to the broadcast directing address information.
In one possible embodiment, when the first live video stream is from a video capture terminal administered by the first live server or the second live server,
the acquisition module is specifically configured to execute receiving of the first direct-playing video stream sent by the video acquisition terminal;
the determining module is specifically configured to determine the director address of the first live video stream according to the stored correspondence between the video stream identifier and the director address.
In a possible implementation, the system further includes a transcoding module configured to perform:
before the acquired first live video stream is stored in a cache region corresponding to the director address, if it is determined that the encoding parameters of the data frame in the acquired first live video stream are not matched with the specified encoding parameters, transcoding the data frame according to the specified encoding parameters.
In a possible implementation, the system further includes a modification module configured to perform:
before the acquired first live video stream is stored in the cache region corresponding to the director address, modifying the timestamp of each data frame in the first live video stream according to a preset timestamp modification rule.
In one possible implementation, if there is a second live video stream currently being directed at the direction address, the storage module is configured to perform:
after a first data frame in the second live broadcast video stream is stored in the buffer area, switching to store the acquired first live broadcast video stream in the buffer area, wherein the first data frame is a data frame which is adjacent to a second data frame in the second live broadcast video stream and has a timestamp earlier than that of the second data frame, and the second data frame is a data frame which is in the second live broadcast video stream and has the same timestamp as that of a first instant decoding refresh frame in the first live broadcast video stream.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including: at least one processor, and a memory communicatively coupled to the at least one processor, wherein:
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any of the above-described director control methods.
According to a fourth aspect of embodiments of the present disclosure, there is provided a storage medium, wherein when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is capable of executing any one of the above-described director control methods.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer program product which, when invoked for execution by a computer, may cause the computer to perform any of the above-described director control methods.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:
the method comprises the steps that a first direct-broadcasting server obtains a first direct-broadcasting video stream, if the first direct-broadcasting video stream needs to be directed, a directing address of the first direct-broadcasting video stream is determined, the obtained first direct-broadcasting video stream is stored in a cache region corresponding to the directing address, and then the direct-broadcasting video stream in the cache region is pushed according to the directing address, so that the first direct-broadcasting video stream is directly obtained by the first direct-broadcasting server and directed, the first direct-broadcasting video stream does not need to be forwarded through a screen recording device, the distribution path of the first direct-broadcasting video stream during directing can be shortened, the network delay is small, and therefore the delay of a video picture in the first direct-broadcasting video stream viewed by a user through the directing address is low finally.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure and are not to be construed as limiting the disclosure.
Fig. 1 is a diagram illustrating an application scenario of a director control method according to an exemplary embodiment.
Fig. 2 is a flow diagram illustrating a method of director control according to an example embodiment.
Fig. 3 is a flow chart illustrating yet another method of director control according to an exemplary embodiment.
Fig. 4 is a flow chart illustrating yet another director control method in accordance with an exemplary embodiment.
Fig. 5 is a block diagram illustrating a director control apparatus according to an exemplary embodiment.
Fig. 6 is a schematic structural diagram of an electronic device for implementing a director control method according to an exemplary embodiment.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a view showing a director control architecture according to an exemplary embodiment, and the view includes a video capture terminal, a first live broadcast server, a second live broadcast server, and a user terminal, where the video capture terminal can capture a video of a live broadcast room a and send the captured live broadcast video stream a to the second live broadcast server that governs itself, and the second live broadcast server can store the live broadcast video stream a in a cache area of the live broadcast room a, and distribute a live broadcast address a of the live broadcast video stream a through a content distribution network, and a user can watch the live broadcast video stream a through the live broadcast address a.
In specific implementation, the first live broadcast server may obtain the live broadcast video stream a, and if the live broadcast video stream a needs to be directed, the direct broadcast address of the live broadcast video stream a may be determined, and the obtained live broadcast video stream a is stored in the buffer area corresponding to the direct broadcast address, and the live broadcast video stream in the buffer area is further pushed according to the direct broadcast address, so that the direct broadcast of the live broadcast video stream a is completed, and the user may view the live broadcast video stream a through the direct broadcast address.
In practical application, the live video stream a may be from a second live server or from a video capture terminal administered by the second live server, at this time, the second live server performs live broadcast on the live video stream a, and the first live server performs live broadcast guidance on the live video stream a.
It should be noted that, when the live video stream a is from the video capture terminal governed by the second live server, the first live server needs to authorize the second live server, and then the first live server can obtain the live video stream a from the video capture terminal governed by the second live server.
In addition, the live video stream a may be from the first live server, or may be from a video capture terminal governed by the first live server, and at this time, the first live server performs live broadcast on the live video stream a, and may also perform live broadcast guidance on the live video stream a.
In specific implementation, when the live video stream a comes from the first live server or the second live server, the first live server may obtain the live video stream a according to the received director instruction, and when the live video stream a comes from the video capture terminal governed by the first live server or the video capture terminal governed by the second live server, the video capture terminal actively sends the live video stream a to the first live server.
In any mode, the first live broadcast server directly obtains the live broadcast video stream A and conducts the broadcast, screen recording operation is not needed, the live broadcast video stream A only needs to pass through a layer of content distribution network in the process of reaching the user terminal, the distribution path is short, and the network delay is small, so that the video picture in the live broadcast video stream A finally watched by the user through the broadcast guiding address is low in delay.
Fig. 2 is a flowchart illustrating a director control method, as shown in fig. 1, for use in a first direct cast server, according to an example embodiment, the flowchart including the following steps.
S201: a first live video stream is obtained.
Wherein the first live video stream is from any one of the following devices:
the system comprises a first live broadcast server, a video acquisition terminal governed by the first live broadcast server, a second live broadcast server and a video acquisition terminal governed by the second live broadcast server.
S202: and if the first direct-playing video stream needs to be directed, determining a directing address of the first direct-playing video stream.
Wherein, a director address corresponds to a live broadcast room.
In specific implementation, when the first live video stream is from the first live server or the second live server, a director instruction for the first live video stream is received, it is determined that the first live video stream needs to be directed, the director instruction can carry director address information, and the director address of the first live video stream can be determined according to the director address information.
And when the first live video stream comes from the first live server, the first live server may cache the first live video stream in advance, and subsequently, the first live video stream is directly obtained from the cache.
And when the first live video stream comes from a video acquisition terminal administered by the first live server or a video acquisition terminal administered by the second live server, the video acquisition terminal can actively send the first live video stream to the first live server, at this time, the first live server can pre-store the corresponding relation between the video stream identifier and the broadcast guide address of the live video stream to be broadcast, and the broadcast guide address of the first live video stream can be determined according to the corresponding relation and the video stream identifier of the first live video stream.
S203: and storing the acquired first direct-playing video stream into a cache region corresponding to the directing address.
Generally, the data frames are stored in the buffer area corresponding to the director address in the form of a queue, so that each data frame can be stored to the end of the queue in sequence according to the data frame in the first direct-broadcast video stream, wherein the data frame includes an audio frame and a video frame.
S204: and pushing the live video stream in the buffer area according to the director address.
In specific implementation, the data frames in the queue are refreshed in real time, and when an access request to a director address is received, the data frames can be sent to corresponding user terminals from the head of the queue, and the user terminals can watch the direct broadcast video stream through the director address.
Fig. 3 is a flow chart illustrating yet another director control method, as shown in fig. 1, for use in a first direct cast server, according to an example embodiment, the flow chart including the following steps.
S301: a first live video stream is obtained.
S302: and if the first direct-playing video stream needs to be directed, determining a directing address of the first direct-playing video stream.
S303: and if the coding parameters of the data frame in the acquired first direct-playing video stream are determined not to be matched with the specified coding parameters, carrying out transcoding processing on the data frame according to the specified coding parameters.
In practical application, the encoding parameters of different live video streams that are guided by the first live server may be inconsistent, and in order to smoothly guide the different live video streams, the encoding parameters of data frames in the live video streams may be specified, and then transcoding processing is performed on the data frames in the live video streams that do not match the specified encoding format, where the specified encoding parameters may be encoding parameters of the live video streams that were guided at the guide address last time, or encoding parameters that are set by a technician according to experience.
S304: and modifying the time stamp of each data frame in the first direct-playing video stream according to a preset time stamp modification rule.
The time stamp of each data frame in the first live video stream represents the acquisition time of the data frame or the encoding time of the data frame, and the time stamps of the data frames in the first live video stream represent the same meaning, that is, the time stamps of the data frames represent either the acquisition time or the encoding time.
In practical application, the first live broadcast server can play different live broadcast video streams at the director address, and the data frame in each live broadcast video stream carries a timestamp, so that the timestamp of the data frame in the live broadcast video stream which is finally watched by the user through the director address can be monotonically increased, and the timestamp of the data frame in the live broadcast video stream acquired each time can be modified according to a preset timestamp modification rule.
In specific implementation, a timestamp of a first Instant Decoding Refresh (IDR) frame in the first live video stream may be determined, a time difference between the timestamp and the current system time is calculated, and then the timestamp of each data frame in the first live video stream is modified according to the time difference, so that the acquisition time of the data frame is consistent with the system time of the first live server.
Therefore, no matter a plurality of live video streams are guided at the guide address, the time stamp of the data frame in the live video stream seen by the user through the guide address is monotonically increased, so that the user can not feel that the live video stream is switched among a plurality of live video streams, and the user experience is better like watching the live video stream which is not rebroadcast.
S305: and storing the processed first direct-playing video stream into a cache region corresponding to the directing address.
Generally, the data frames are stored in the buffer area corresponding to the director address in the form of a queue, so that each data frame can be stored to the end of the queue in sequence according to the data frame in the first direct-broadcast video stream, wherein the data frame includes an audio frame and a video frame.
S306: and pushing the live video stream in the buffer area according to the director address.
In specific implementation, the data frames in the queue are refreshed in real time, and each time an access request for a director address is received, the data frames can be sent to a corresponding user terminal from the head of the queue, so that a user views a first direct-broadcasting video stream through the director address.
In the related art, for the same director address, when receiving the first live video stream, the second live video stream (i.e., the live video stream currently being directed) received before is interrupted, and time is required for copying the first live video stream, so that a picture seen by a user through the director address is interrupted, and user experience is not good.
To solve this problem, in the embodiment of the present disclosure, if the first live server currently has the second live video stream directed at the direction address, the second live video stream can be continuously acquired and stored in the buffer area corresponding to the director address, stopping acquiring the second live broadcast video stream until the first data frame in the second live broadcast video stream is stored in the buffer area, switching to storing the acquired first live broadcast video stream in the buffer area, wherein the first data frame is a data frame in the second live video stream that is adjacent to the second data frame and has a timestamp that is earlier than the second data frame, and the second data frame is a data frame in the second live video stream that has the same timestamp as the first instant decoding refresh frame in the first live video stream, such that, the video pictures seen by the user through the director address can be uninterrupted, and the user experience is further improved.
In the following, the present disclosure will be described by taking an example in which the first live video stream is from the first live server or the second live server.
Fig. 4 is a flowchart illustrating yet another director control method, as shown in fig. 1, for use in a first direct cast server, according to an example embodiment, the flowchart including the following steps.
S401: and receiving a broadcast instruction of the first direct-broadcast video stream, wherein the broadcast instruction carries address resource information and broadcast address information of the first direct-broadcast video stream.
In specific implementation, the first direct-play server may provide a direct-play control interface, and the direct-play staff inputs address resource information of the first direct-play video stream that is currently desired to be directed, such as a Uniform Resource Locator (URL) link and direct-play address information, in the direct-play control interface, clicks a confirmation option on the direct-play control interface, and the first direct-play server may receive the direct-play instruction.
S402: and acquiring the first direct-playing video stream according to the address resource information.
In specific implementation, the first direct-playing server can periodically acquire the first direct-playing video stream according to the address resource information.
S403: and if the coding parameters of the data frame in the acquired first direct-playing video stream are determined not to be matched with the specified coding parameters, carrying out transcoding processing on the data frame according to the specified coding parameters.
S404: and modifying the time stamp of each data frame in the first direct-playing video stream according to a preset time stamp modification rule.
S405: and storing the processed first direct-playing video stream into a cache region corresponding to the directing address.
In specific implementation, the first live broadcast server divides a cache area for storing video resources for the director address, the video resources in the cache area are periodically refreshed, and a user clicks the director address to acquire the video resources in the cache area, so that the acquired first live broadcast video stream is stored in the cache area corresponding to the director address, and the user can view the first live broadcast video stream through the director address.
S406: and pushing the live video stream in the buffer area according to the director address.
In addition, if the first live broadcast server currently directs a second live broadcast video stream at the direction address, the second live broadcast video stream is continuously acquired, the second live broadcast video stream is stored in the cache region corresponding to the direction address, the timestamp (updated timestamp) of the first IDR frame in the first live broadcast video stream is determined, the data frame with the timestamp in the second broadcast video stream is found, after the previous data frame of the data frame in the second live broadcast video stream is stored in the cache region corresponding to the direction address, the acquisition of the second live broadcast video stream is stopped, and the first live broadcast video stream is switched to be stored in the cache region corresponding to the direction address, so that the video pictures seen by the user through the direction address are uninterrupted, and the user experience is further improved.
The above process is described below with reference to specific examples.
In specific implementation, when the first direct broadcast server receives an instruction for playing a live broadcast Video stream a in a live broadcast room C (a live broadcast address of the live broadcast room C), the live broadcast Video stream a can be acquired according to address resource information of the live broadcast Video stream a carried in the instruction, then the live broadcast Video stream a is unpacked (demux) to obtain an original h.264 Video frame and an Advanced Audio Coding (AAC) Audio frame in the live broadcast Video stream a, a timestamp of each of the h.264 Video frame and the AAC Audio frame is updated according to a time difference between a timestamp in a first h.264 Video frame in the live broadcast Video stream a and a current system time, so that an acquisition time of the data frame is consistent with the system time of the live broadcast server, then the h.264 Video frame and the AAC Audio frame are interleaved and sequenced (interleave), the data frames are re-encapsulated into a new streaming media format (Video media format according to the sequencing result, FLV) stream (a timestamp in a new FLV stream is singly increased), the re-encapsulated FLV stream is distributed to a user terminal through a Content Delivery Network (CDN) as a live stream of a live broadcast room C, and what the user terminal acquires through a URL address of the live broadcast room C is the live video stream a of the live broadcast room a.
Subsequently, if the first live broadcast server receives an instruction for playing the live broadcast video stream B in the live broadcast room C, the live broadcast video stream B can be obtained according to the address resource information of the live broadcast video stream B carried in the instruction, then the live broadcast video stream B is demux to obtain the original h.264 video frame and AAC audio frame in the live broadcast video stream B, which are the second group of audio and live broadcast video streams, when the group of audio and live broadcast video streams has a first Instant Decoding Refresh (IDR) frame, the live broadcast video stream input in the live broadcast room C is switched from the instant decoding Refresh to the live broadcast video stream B, that is, the data frame in the live broadcast video stream B is subsequently adopted for FLV encapsulation, and the timestamp of the data frame in the live broadcast video stream B can be converted and interleaved (interleave) according to the current system time of the live broadcast server, the timestamp is ensured to be kept singly increased all the time, so that the live video stream of the live broadcast room C is switched to the live video stream B, the URL of the live broadcast room C is not changed, and the live video stream seen by the user terminal in the live broadcast room C is seamlessly switched to the live video stream B.
Assuming that the specified encoding parameters are encoding parameters of a live video stream played in the live broadcast room C for the first time, when the encoding parameters of the live video stream a and the live video stream B are inconsistent, such as resolution, encoding algorithm, and the like, transcoding (i.e., re-encoding after decoding) audio and video data of the live video stream B can be performed, so as to ensure that the encoding parameters of the live video stream B after transcoding are consistent with the encoding parameters of the live video stream a.
In the embodiment of the disclosure, the encoding and decoding operations of the live video stream needing to be directed are all performed in the first live server, and the user terminal can operate the browser to watch the live video stream of the direction. Because the first live broadcast server has high computational efficiency, the first live broadcast server has high speed of conversion packaging and transcoding processing of the live broadcast video stream, and the conversion pushing path of the live broadcast video stream converted and pushed by the first live broadcast server is short only by passing through a layer of content distribution network, so that video pictures watched by a user through a director address and an original live broadcast address of the live broadcast video stream are basically consistent in time.
In addition, in the embodiment of the disclosure, a technician is not required to perform complicated screen recording operation processing, so that labor cost can be saved, and the director experience can be improved, and the director can provide richer live broadcast contents, for example, different live broadcast video streams of the director form a network spring and night.
When the method provided in the embodiments of the present disclosure is implemented in software or hardware or a combination of software and hardware, a plurality of functional modules may be included in the electronic device, and each functional module may include software, hardware or a combination of software and hardware.
Specifically, fig. 5 is a block diagram illustrating a director control apparatus according to an exemplary embodiment, which includes an obtaining module 501, a determining module 502, a storing module 503, and a pushing module 504.
An obtaining module 501 configured to perform obtaining a first live video stream;
a determining module 502 configured to determine a broadcast directing address of the first live video stream if the first live video stream needs to be directed;
a storage module 503, configured to store the acquired first live video stream into a buffer area corresponding to the director address;
a pushing module 504 configured to perform pushing of the live video stream in the cache region according to the director address.
In a possible implementation, the first live video stream is from any one of the following devices:
the first direct broadcast server; the video acquisition terminal is administered by the first direct broadcasting server; a second live server; and the video acquisition terminal is administered by the second live broadcast server.
In a possible implementation manner, when the first live video stream comes from the first live server or the second live server, the method further includes the receiving module 505:
the receiving module 505 is configured to receive a broadcast instruction of a first direct-broadcast video stream before the first direct-broadcast video stream is acquired, where the broadcast instruction carries address resource information and broadcast address information of the first direct-broadcast video stream;
the obtaining module 501 is specifically configured to obtain the first direct-playing video stream according to the address resource information;
the determining module 502 is specifically configured to determine a broadcast directing address of the first direct video stream according to the broadcast directing address information.
In one possible embodiment, when the first live video stream is from a video capture terminal administered by the first live server or the second live server,
the obtaining module 501 is specifically configured to perform receiving the first direct-playing video stream sent by the video capturing terminal;
the determining module 502 is specifically configured to determine the director address of the first live video stream according to the stored correspondence between the video stream identifier and the director address.
Under a possible implementation, the system further includes a transcoding module 506, where the transcoding module 506 is configured to perform:
before the acquired first live video stream is stored in a cache region corresponding to the director address, if it is determined that the encoding parameters of the data frame in the acquired first live video stream are not matched with the specified encoding parameters, transcoding the data frame according to the specified encoding parameters.
In a possible implementation, the system further includes a modification module 507, where the modification module 507 is configured to perform:
before the acquired first live video stream is stored in the cache region corresponding to the director address, modifying the timestamp of each data frame in the first live video stream according to a preset timestamp modification rule.
In a possible implementation manner, if there is a second live video stream currently being directed at the direction address, the storage module 503 is configured to perform:
after a first data frame in the second live broadcast video stream is stored in the buffer area, switching to store the acquired first live broadcast video stream in the buffer area, wherein the first data frame is a data frame which is adjacent to a second data frame in the second live broadcast video stream and has a timestamp earlier than that of the second data frame, and the second data frame is a data frame which is in the second live broadcast video stream and has the same timestamp as that of a first instant decoding refresh frame in the first live broadcast video stream.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
The division of the modules in the embodiments of the present disclosure is illustrative, and is only a logical function division, and there may be another division manner in actual implementation, and in addition, each functional module in each embodiment of the present disclosure may be integrated in one processor, may also exist alone physically, or may also be integrated in one module by two or more modules. The coupling of the various modules to each other may be through interfaces that are typically electrical communication interfaces, but mechanical or other forms of interfaces are not excluded. Thus, modules described as separate components may or may not be physically separate, may be located in one place, or may be distributed in different locations on the same or different devices. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
Fig. 6 is a schematic structural diagram of an electronic device according to an exemplary embodiment, where the electronic device includes a transceiver 601 and a processor 602, where the processor 602 may be a Central Processing Unit (CPU), a microprocessor, an application specific integrated circuit, a programmable logic circuit, a large scale integrated circuit, or a digital processing unit. The transceiver 601 is used for data transmission and reception between the electronic device and other devices.
The electronic device may further comprise a memory 603 for storing software instructions executed by the processor 602, but may also store some other data required by the electronic device, such as identification information of the electronic device, encryption information of the electronic device, user data, etc. The memory 603 may be a volatile memory (volatile memory), such as a random-access memory (RAM); the memory 603 may also be a non-volatile memory (non-volatile memory) such as a read-only memory (ROM), a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD), or the memory 603 may be any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 603 may be a combination of the above memories.
The embodiment of the present disclosure does not limit the specific connection medium among the processor 602, the memory 603, and the transceiver 601. In fig. 6, the embodiment of the present disclosure is described by taking only the case where the memory 603, the processor 602, and the transceiver 601 are connected by the bus 604 as an example, the bus is shown by a thick line in fig. 6, and the connection manner between other components is merely illustrative and not limited. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 6, but this is not intended to represent only one bus or type of bus.
The processor 602 may be dedicated hardware or a processor running software, and when the processor 602 may run software, the processor 602 reads software instructions stored in the memory 603 and executes any of the director control methods involved in the foregoing embodiments under the drive of the software instructions.
The embodiment of the present disclosure also provides a storage medium, and when instructions in the storage medium are executed by a processor of an electronic device, the electronic device can execute any one of the director control methods related in the foregoing embodiments.
In some possible embodiments, various aspects of the director control method provided by the present disclosure may also be implemented in the form of a program product comprising program code for causing an electronic device to perform any of the director control methods referred to in the preceding embodiments when the program product is run on the electronic device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The program product for director control in embodiments of the present disclosure may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a computing device. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a 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.
Program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
It should be noted that although several units or sub-units of the apparatus are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more units described above may be embodied in one unit, in accordance with embodiments of the present disclosure. Conversely, the features and functions of one unit described above may be further divided into embodiments by a plurality of units.
Further, while the operations of the disclosed methods are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present disclosure have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the disclosure.
It will be apparent to those skilled in the art that various changes and modifications can be made in the present disclosure without departing from the spirit and scope of the disclosure. Thus, if such modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include such modifications and variations as well.
Claims (10)
1. A broadcast directing control method is applied to a first broadcast server and is characterized by comprising the following steps:
acquiring a first direct-playing video stream;
if the first direct-playing video stream needs to be directed, determining a directing address of the first direct-playing video stream;
storing the acquired first direct-broadcasting video stream into a cache region corresponding to the directing address;
and pushing the live video stream in the cache region according to the director address.
2. The method of claim 1, wherein the first live video stream is from any one of:
the first direct broadcast server; the video acquisition terminal is administered by the first direct broadcasting server; a second live server; and the video acquisition terminal is administered by the second live broadcast server.
3. The method of claim 2, wherein before obtaining the first live video stream when the first live video stream is from the first live server or the second live server, further comprising:
receiving a broadcast instruction of the first direct-broadcast video stream, wherein the broadcast instruction carries address resource information and broadcast address information of the first direct-broadcast video stream; and
obtaining a first live video stream, comprising:
acquiring the first direct-playing video stream according to the address resource information;
determining a director address of the first live video stream, comprising:
and determining the director address of the first direct-playing video stream according to the director address information.
4. The method of claim 2, wherein when the first live video stream is from a video capture terminal administered by the first live server or administered by the second live server,
obtaining a first live video stream, comprising:
receiving the first direct-playing video stream sent by the video acquisition terminal; and
determining a director address of the first live video stream, comprising:
and determining the director address of the first direct-playing video stream according to the stored corresponding relation between the video stream identifier and the director address.
5. The method of claim 1, wherein before storing the obtained first live video stream in the buffer area corresponding to the director address, the method further comprises:
and if the obtained coding parameters of the data frame in the first direct-playing video stream are determined not to be matched with the specified coding parameters, carrying out transcoding processing on the data frame according to the specified coding parameters.
6. The method of claim 1, wherein before storing the obtained first live video stream in the buffer area corresponding to the director address, the method further comprises:
and modifying the time stamp of each data frame in the first direct-playing video stream according to a preset time stamp modification rule.
7. The method according to any one of claims 1 to 6, wherein if there is a second live video stream currently being directed at the direction address, storing the acquired first live video stream in a buffer area corresponding to the direction address, includes:
after a first data frame in the second live broadcast video stream is stored in the buffer area, switching to store the acquired first live broadcast video stream in the buffer area, wherein the first data frame is a data frame which is adjacent to a second data frame in the second live broadcast video stream and has a timestamp earlier than that of the second data frame, and the second data frame is a data frame which is in the second live broadcast video stream and has the same timestamp as that of a first instant decoding refresh frame in the first live broadcast video stream.
8. A broadcast director control device applied to a first broadcast server, comprising:
an acquisition module configured to perform acquiring a first live video stream;
the determining module is configured to determine a broadcast directing address of the first direct-broadcast video stream if the first direct-broadcast video stream needs to be directed;
the storage module is configured to store the acquired first direct-playing video stream into a cache region corresponding to the director address;
and the pushing module is configured to push the live video stream in the cache region according to the directing address.
9. An electronic device, comprising: at least one processor, and a memory communicatively coupled to the at least one processor, wherein:
the memory stores instructions executable by the at least one processor, the instructions when executed by the at least one processor being capable of performing the method of director control according to any of claims 1-7.
10. A storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the director control method of any one of claims 1-7.
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