CN113038220A - Program directing method, program directing system, program directing apparatus, and computer-readable storage medium - Google Patents
Program directing method, program directing system, program directing apparatus, and computer-readable storage medium Download PDFInfo
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- CN113038220A CN113038220A CN201911355402.2A CN201911355402A CN113038220A CN 113038220 A CN113038220 A CN 113038220A CN 201911355402 A CN201911355402 A CN 201911355402A CN 113038220 A CN113038220 A CN 113038220A
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The disclosure provides a broadcasting method, a broadcasting system, a broadcasting device and a computer readable storage medium, and relates to the technical field of multimedia. The broadcasting method comprises the following steps: the directing and broadcasting processor pulls a plurality of paths of video live broadcast streams from the streaming media server; the method comprises the steps that a direct-broadcasting processor conducts direct-broadcasting synthesis processing on multiple paths of video live-broadcasting streams to obtain a direct-broadcasting synthesis output stream, and pictures of the direct-broadcasting synthesis output stream comprise synchronous pictures of the video live-broadcasting streams and the direct-broadcasting output stream; the director processor uploads the director synthesis output stream to the streaming media server; the streaming media server sends a director synthesis output stream to a director console; the director console synchronously intercepts the pictures of each video live stream and the pictures of the director output stream from the pictures of the director synthesis output stream, displays the pictures of each video live stream through the input window and the pre-monitoring window, and synchronously displays the pictures of the director output stream through the broadcasting window. The method and the device can realize the picture synchronization of different windows in the director console.
Description
Technical Field
The present disclosure relates to the field of multimedia technologies, and in particular, to a broadcast directing method, a broadcast directing system, a broadcast directing apparatus, and a computer-readable storage medium.
Background
The cloud director technology is one of video live broadcast technologies. The cloud direct broadcasting system supports multi-angle and multi-scene live video streams pushed by various devices such as cameras, mobile phones, unmanned aerial vehicles and intelligent glasses in different places, carries out processing such as switching, zooming and audio mixing screen mixing at the cloud end, and finally synthesizes a direct broadcasting output stream for terminal distribution and playing. The cloud director technology is widely applied to live game broadcasting, live sports broadcasting, video entertainment interaction and the like in 5G new media services.
In order to facilitate the operation of the director console, the director console often has a plurality of input windows, pre-monitoring windows, and broadcasting windows for displaying different contents. In the cloud director architecture, a streaming server is used to cache and distribute all video streams. The director console needs to pull or copy the media stream from the streaming server, the input window pulls the stream from the live video stream, the pre-monitor window is a copy of the input window, and the playout window pulls the stream from the director stream.
The media stream sources of the windows are different, which causes the content of each window to be inconsistent, especially the inconsistency between the pre-monitoring window and the broadcasting window, which brings poor visual experience to users.
Disclosure of Invention
One technical problem that this disclosure solves is how to achieve picture synchronization of different windows in a director console.
According to an aspect of an embodiment of the present disclosure, there is provided a method for directing broadcasting, including: the directing and broadcasting processor pulls a plurality of paths of video live broadcast streams from the streaming media server; the method comprises the steps that a direct-broadcasting processor conducts direct-broadcasting synthesis processing on multiple paths of video live-broadcasting streams to obtain a direct-broadcasting synthesis output stream, and pictures of the direct-broadcasting synthesis output stream comprise synchronous pictures of the video live-broadcasting streams and the direct-broadcasting output stream; the director processor uploads the director synthesis output stream to the streaming media server; the streaming media server sends a director synthesis output stream to a director console; the director console synchronously intercepts the pictures of each video live stream and the pictures of the director output stream from the pictures of the director synthesis output stream, displays the pictures of each video live stream through the input window and the pre-monitoring window, and synchronously displays the pictures of the director output stream through the broadcasting window.
In some embodiments, the director processor performs a director composition process on the multiple live video streams to obtain a director composition output stream, comprising: the director processor carries out director processing on the pictures of the multi-channel video live stream to obtain the pictures of a director output stream; and the director processor synchronously splices the pictures of the multi-channel video live stream and the pictures of the director output stream to obtain the pictures of the director synthesis output stream.
In some embodiments, the director processor performs a director composition process on the multiple live video streams to obtain a director composition output stream, further comprising: the director processor stores the audio of each live video stream and the audio of the director output stream in a multi-track mode, so that the audio of the director composite output stream comprises the audio of each live video stream and the audio of the director output stream.
In some embodiments, the director method further comprises: the director console synchronously intercepts the audio of each video live stream and the audio of the director output stream from the audio of the director synthesis output stream; the method comprises the following steps of displaying pictures of each path of video live stream through an input window and a pre-monitoring window, and synchronously displaying the pictures of a director output stream through a broadcasting window, wherein the steps of: and playing the pictures and the audio of each path of live video stream through the input window and the pre-monitoring window, and synchronously playing the pictures and the audio of the output stream of the director through the playing window.
According to another aspect of an embodiment of the present disclosure, there is provided a program director system including: a director processor configured to: pulling a plurality of paths of video live broadcast streams from a streaming media server; performing direct broadcasting synthesis processing on the multiple paths of video live streams to obtain a direct broadcasting synthesis output stream, wherein pictures of the direct broadcasting synthesis output stream comprise synchronous pictures of the video live streams and the direct broadcasting output stream; uploading the director synthesis output stream to a streaming media server; a streaming media server configured to: sending the director synthesis output stream to a director console; a director console configured to: synchronously intercepting the pictures of each path of video live stream and the pictures of the director output stream from the pictures of the director composite output stream, displaying the pictures of each path of video live stream through an input window and a pre-monitoring window, and synchronously displaying the pictures of the director output stream through a broadcasting window.
In some embodiments, the director processor is configured to: performing direct broadcasting processing on the pictures of the multi-channel live video stream to obtain the pictures of a direct broadcasting output stream; and synchronously splicing the pictures of the multi-channel live video stream and the pictures of the director output stream to obtain the pictures of the director synthesis output stream.
In some embodiments, the director processor is further configured to: and storing the audio of each video live stream and the audio of the director output stream in a multi-track mode respectively, so that the audio of the director composite output stream comprises the audio of each video live stream and the audio of the director output stream.
In some embodiments, the director console is further configured to: synchronously intercepting the audio of each path of live video stream and the audio of the director output stream from the audio of the director synthesis output stream; and playing the pictures and the audio of each path of live video stream through the input window and the pre-monitoring window, and synchronously playing the pictures and the audio of the output stream of the director through the playing window.
According to still another aspect of the disclosed embodiments, there is provided a director device including: a memory; and a processor coupled to the memory, the processor configured to perform the foregoing method of directing based on instructions stored in the memory.
According to yet another aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, which when executed by a processor, implement the foregoing director method.
The method and the device can realize the picture synchronization of different windows in the director console.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a schematic diagram of a cloud director architecture in the related art.
FIG. 2 shows a cloud director architecture diagram improved by the present disclosure
Fig. 3 illustrates a flow diagram of a director method of some embodiments of the present disclosure.
Fig. 4 shows a schematic diagram of pictures of a director's composite output stream.
Fig. 5 illustrates a structural schematic diagram of a director system of some embodiments of the present disclosure.
Fig. 6 illustrates a schematic structural diagram of a director apparatus according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Fig. 1 shows a schematic diagram of a cloud director architecture in the related art. As shown in fig. 1, the streaming media server and the director processor are located in the cloud, the live streams in 1-in 4 represent live video streams, and the arrows represent the transmission direction of the media streams. The inventor researches and discovers that the streaming media displayed in the input window are from each video live broadcast stream respectively pulled from a streaming media server; the pre-monitoring window is used for operating preview, layout adjustment, volume adjustment and the like, and the displayed streaming media are sourced from each input window; the director output window is used for showing the final output result of the director, and the shown streaming media is derived from the director output stream pulled from the streaming media server. Due to the fact that the streaming media sources of the three windows are not consistent, the frames of the pre-monitoring window and the output window are not synchronous. In view of the above, the inventors have improved the cloud director architecture, and fig. 2 shows a schematic diagram of the cloud director architecture improved by the present disclosure.
Some embodiments of the disclosed director method are first described in conjunction with fig. 3.
Fig. 3 illustrates a flow diagram of a director method of some embodiments of the present disclosure. As shown in fig. 3, the present embodiment includes steps S301 to S305.
In step S301, the director processor pulls multiple live video streams from the streaming server.
For example, the director processor pulls a live video stream of various devices such as a camera, a mobile phone, a drone, smart glasses, and the like from a streaming server.
In step S302, the director processor performs director synthesis on multiple channels of live video streams to obtain a director synthesis output stream, where pictures of the director synthesis output stream include synchronous pictures of the live video streams and the director output stream.
In some embodiments, a director processor directs the pictures of the multi-channel live video stream to obtain the pictures of the stream output by the director. Then, the director processor synchronously splices the pictures of the multi-channel video live stream and the pictures of the director output stream to obtain the pictures of the director synthesis output stream.
For example, the director processor may add a picture of a live video stream to a picture of a director output stream after performing processing such as switching scaling, mixing audio and mixing a screen, adding a special effect, and the like at the cloud according to the broadcast control instruction, and output a processing result together as a channel director synthesis output stream. Fig. 4 shows a schematic diagram of pictures of a director's composite output stream. As shown in fig. 4, the video frames of the director composition output stream are spliced according to the predetermined resolution and layout position, the frames of the four live video streams are sequentially arranged from top to bottom on the left side according to the size of 320 × 180 pixels, and the frames of the director composition output stream are output on the right side according to the size of 1280 × 720 pixels.
In step S303, the director processor uploads the director composite output stream to the streaming server.
In step S304, the streaming server sends the director composite output stream to the director console.
In step S305, the director console synchronously captures the frames of the live video streams and the frames of the director output stream from the frames of the director composite output stream, displays the frames of the live video streams through the input window and the pre-monitor window, and synchronously displays the frames of the director output stream through the broadcast window.
The director console only needs to obtain a channel of director composite output stream, and the content pictures required to be displayed by each window can be obtained by cutting the designated position and area in the director composite output stream.
In this embodiment, the video frames required to be displayed in all the windows are spliced in the same director synthesis output stream, aiming at the problems of inconsistent video playing time and video frame asynchronism existing among multiple display window frames of the director console. When the video pictures are displayed through each window, the director console only needs to cut the pictures of the corresponding area of each window from the director synthesis output stream. Because the pictures of the corresponding areas of the windows are from the same video stream, the embodiment can realize the picture synchronization of different windows in the director console, and avoid the video picture asynchronization caused by different media stream sources of the windows. Meanwhile, the embodiment does not need to additionally increase the synchronous operation, can efficiently realize the picture synchronization of different windows in the director console, and is easy to implement.
In some embodiments, in step S302, the director processor stores the audio of each of the live video streams and the audio of the director output stream in a multi-track manner, respectively, such that the audio of the director composite output stream includes the audio of each of the live video streams and the audio of the director output stream.
And the audio of the director output stream is a marital result obtained according to the director processing operation.
Accordingly, in step S305, the director console synchronously intercepts the audio of each of the live video streams and the audio of the director output stream from the audio of the director composite output stream, plays the pictures and the audio of each of the live video streams through the input window and the pre-monitor window, and synchronously plays the pictures and the audio of the director output stream through the play window.
The embodiment can realize the picture synchronization of different windows in the director console and the audio synchronization of different windows in the director console, thereby realizing the video synchronization of different windows in the director console.
Some embodiments of the disclosed director system are described below in conjunction with fig. 5.
Fig. 5 illustrates a structural schematic diagram of a director system of some embodiments of the present disclosure. As shown in fig. 5, the director system 50 in this embodiment includes:
a director processor 501 configured to: pulling a plurality of paths of video live broadcast streams from a streaming media server; performing direct broadcasting synthesis processing on the multiple paths of video live streams to obtain a direct broadcasting synthesis output stream, wherein pictures of the direct broadcasting synthesis output stream comprise synchronous pictures of the video live streams and the direct broadcasting output stream; uploading the director synthesis output stream to a streaming media server; a streaming media server 502 configured to: sending the director synthesis output stream to a director console; a director console 503 configured to: synchronously intercepting the pictures of each path of video live stream and the pictures of the director output stream from the pictures of the director composite output stream, displaying the pictures of each path of video live stream through an input window and a pre-monitoring window, and synchronously displaying the pictures of the director output stream through a broadcasting window.
In some embodiments, the director processor 501 is configured to: performing direct broadcasting processing on the pictures of the multi-channel live video stream to obtain the pictures of a direct broadcasting output stream; and synchronously splicing the pictures of the multi-channel live video stream and the pictures of the director output stream to obtain the pictures of the director synthesis output stream.
In this embodiment, the video frames required to be displayed in all the windows are spliced in the same director synthesis output stream, aiming at the problems of inconsistent video playing time and video frame asynchronism existing among multiple display window frames of the director console. When the video pictures are displayed through each window, the director console only needs to cut the pictures of the corresponding area of each window from the director synthesis output stream. Because the pictures of the corresponding areas of the windows are from the same video stream, the embodiment can realize the picture synchronization of different windows in the director console, and avoid the video picture asynchronization caused by different media stream sources of the windows. Meanwhile, the embodiment does not need to additionally increase the synchronous operation, can efficiently realize the picture synchronization of different windows in the director console, and is easy to implement.
In some embodiments, the director processor 501 is further configured to: and storing the audio of each video live stream and the audio of the director output stream in a multi-track mode respectively, so that the audio of the director composite output stream comprises the audio of each video live stream and the audio of the director output stream.
In some embodiments, the director console 503 is further configured to: synchronously intercepting the audio of each path of live video stream and the audio of the director output stream from the audio of the director synthesis output stream; and playing the pictures and the audio of each path of live video stream through the input window and the pre-monitoring window, and synchronously playing the pictures and the audio of the output stream of the director through the playing window.
The embodiment can realize the picture synchronization of different windows in the director console and the audio synchronization of different windows in the director console, thereby realizing the video synchronization of different windows in the director console.
Some embodiments of the disclosed director devices are described below in conjunction with fig. 6.
Fig. 6 illustrates a schematic structural diagram of a director apparatus according to some embodiments of the present disclosure. As shown in fig. 6, the director device 60 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 configured to perform the director method in any of the foregoing embodiments based on instructions stored in the memory 610.
The director device 60 may also include an input-output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the connections between the memory 610 and the processor 620 may be through a bus 660, for example. The input/output interface 630 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networking devices. The storage interface 650 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer-readable storage medium having stored thereon computer instructions that, when executed by a processor, implement a method of directing in any of the foregoing embodiments.
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.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (10)
1. A method of directing, comprising:
the directing and broadcasting processor pulls a plurality of paths of video live broadcast streams from the streaming media server;
the method comprises the steps that a direct-broadcasting processor conducts direct-broadcasting synthesis processing on multiple paths of video live-broadcasting streams to obtain a direct-broadcasting synthesis output stream, and pictures of the direct-broadcasting synthesis output stream comprise synchronous pictures of the video live-broadcasting streams and the direct-broadcasting output stream;
the director processor uploads the director synthesis output stream to the streaming media server;
the streaming media server sends a director synthesis output stream to a director console;
the director console synchronously intercepts the pictures of each video live stream and the pictures of the director output stream from the pictures of the director synthesis output stream, displays the pictures of each video live stream through the input window and the pre-monitoring window, and synchronously displays the pictures of the director output stream through the broadcasting window.
2. The director method of claim 1, wherein the director processor performs a director composition process on the multiple live video streams to obtain a director composition output stream comprising:
the director processor carries out director processing on the pictures of the multi-channel video live stream to obtain the pictures of a director output stream;
and the director processor synchronously splices the pictures of the multi-channel video live stream and the pictures of the director output stream to obtain the pictures of the director synthesis output stream.
3. The method of director of claim 2, wherein the director processor performs a director composition process on the multiple live video streams to obtain a director composition output stream, further comprising:
the director processor stores the audio of each live video stream and the audio of the director output stream in a multi-track mode, so that the audio of the director composite output stream comprises the audio of each live video stream and the audio of the director output stream.
4. The method for directing a broadcast of claim 3, further comprising:
the director console synchronously intercepts the audio of each video live stream and the audio of the director output stream from the audio of the director synthesis output stream;
the displaying the pictures of the live video streams through the input window and the pre-monitoring window, and the synchronously displaying the pictures of the output stream of the director through the broadcasting window comprises the following steps: and playing the pictures and the audio of each path of live video stream through the input window and the pre-monitoring window, and synchronously playing the pictures and the audio of the output stream of the director through the playing window.
5. A director system comprising:
a director processor configured to: pulling a plurality of paths of video live broadcast streams from a streaming media server; performing direct broadcasting synthesis processing on the multiple paths of video live streams to obtain a direct broadcasting synthesis output stream, wherein pictures of the direct broadcasting synthesis output stream comprise synchronous pictures of the video live streams and the direct broadcasting output stream; uploading the director synthesis output stream to a streaming media server;
a streaming media server configured to: sending the director synthesis output stream to a director console;
a director console configured to: synchronously intercepting the pictures of each path of video live stream and the pictures of the director output stream from the pictures of the director composite output stream, displaying the pictures of each path of video live stream through an input window and a pre-monitoring window, and synchronously displaying the pictures of the director output stream through a broadcasting window.
6. The director system of claim 5, wherein the director processor is configured to:
performing direct broadcasting processing on the pictures of the multi-channel live video stream to obtain the pictures of a direct broadcasting output stream;
and synchronously splicing the pictures of the multi-channel live video stream and the pictures of the director output stream to obtain the pictures of the director synthesis output stream.
7. The director system of claim 5, wherein the director processor is further configured to:
and storing the audio of each video live stream and the audio of the director output stream in a multi-track mode respectively, so that the audio of the director composite output stream comprises the audio of each video live stream and the audio of the director output stream.
8. The director system of claim 7, wherein,
the director console is further configured to: synchronously intercepting the audio of each path of live video stream and the audio of the director output stream from the audio of the director synthesis output stream; and playing the pictures and the audio of each path of live video stream through the input window and the pre-monitoring window, and synchronously playing the pictures and the audio of the output stream of the director through the playing window.
9. A director apparatus, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the director method of any one of claims 1 to 4 based on instructions stored in the memory.
10. A computer readable storage medium, wherein the computer readable storage medium stores computer instructions that, when executed by a processor, implement the director method as recited in any one of claims 1 to 4.
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Application publication date: 20210625 |