CN115695843A - Prefabricated video playing method, server, terminal, medium and system - Google Patents

Prefabricated video playing method, server, terminal, medium and system Download PDF

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Publication number
CN115695843A
CN115695843A CN202211324615.0A CN202211324615A CN115695843A CN 115695843 A CN115695843 A CN 115695843A CN 202211324615 A CN202211324615 A CN 202211324615A CN 115695843 A CN115695843 A CN 115695843A
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China
Prior art keywords
prefabricated
video data
video
playing
cloud terminal
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Inventor
仇剑书
王传宝
田栋
彭伶珊
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Priority to CN202211324615.0A priority Critical patent/CN115695843A/en
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Abstract

The invention provides a prefabricated video playing method, a server, a terminal, a medium and a system, relates to the technical field of network information, and is used for solving the problems that a method for displaying prefabricated video stream images in the existing cloud terminal architecture consumes a large amount of computing resources and reduces the video quality, and the method comprises the following steps: acquiring prefabricated video data to be played, and appointing a display position and a display level for playing the prefabricated video data; after determining that the cloud terminal device has a first video playing channel capable of independently playing the prefabricated video data, sending the prefabricated video data, the display position and the display hierarchy to the first video playing channel of the cloud terminal device, so that the cloud terminal device plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel. The invention can save operation resources, improve video quality and improve user experience.

Description

Prefabricated video playing method, server, terminal, medium and system
Technical Field
The invention relates to the technical field of network information, in particular to a prefabricated video playing method, a cloud server, cloud terminal equipment, a computer readable storage medium and a prefabricated video playing system.
Background
In order to implement image display of a prefabricated video stream in a cloud terminal architecture, in the existing scheme, a cloud computing unit decodes the prefabricated video stream to obtain a prefabricated video image sequence, and then renders and encodes the prefabricated video image as an image element in real time to obtain a final video stream.
The existing scheme has the defects that a large amount of operation resources are consumed in the process of decoding, rendering in real time and recoding the prefabricated video stream, the quality of the obtained new video is lower than that of the original video, and the user experience is reduced.
Disclosure of Invention
The present invention provides a prefabricated video playing method, a cloud server, a cloud terminal device, a computer readable storage medium and a prefabricated video playing system, so as to solve the problem that in the prior art, in a cloud terminal architecture, image display of a prefabricated video stream is realized, the prefabricated video stream needs to be decoded, rendered in real time and re-encoded at the cloud, a large amount of computational resources are consumed, and video quality is reduced.
In a first aspect, the present invention provides a method for playing a prefabricated video, which is applied to a cloud server, and the method includes:
acquiring prefabricated video data to be played, and appointing a display position and a display level for playing the prefabricated video data;
after determining that the cloud terminal device has a first video playing channel capable of independently playing the prefabricated video data, sending the prefabricated video data, the display position and the display hierarchy to the first video playing channel of the cloud terminal device, so that the cloud terminal device plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel.
Optionally, the method further comprises:
acquiring prefabricated audio data to be played corresponding to the prefabricated video data;
and if the real-time audio data are not detected and the cloud terminal equipment is judged to be capable of playing the prefabricated audio data, sending the prefabricated audio data to the cloud terminal equipment so that the cloud terminal equipment can play the prefabricated audio data.
Optionally, after the pre-made audio data to be played corresponding to the pre-made video data is obtained, the method further includes:
if the real-time audio data are detected, synthesizing the prefabricated audio data and the real-time audio data into first audio data which can be played by the cloud terminal equipment;
if no real-time audio data is detected, further judging whether the cloud terminal equipment can play the prefabricated audio data, and if not, converting the prefabricated audio data into second audio data which can be played by the cloud terminal equipment;
and sending the first audio data or the second audio data to the cloud terminal equipment so that the cloud terminal equipment can play the first audio data or the second audio data.
Optionally, the acquiring the to-be-played prefabricated video data and the acquiring the to-be-played prefabricated audio data corresponding to the prefabricated video data specifically include:
the method comprises the steps of receiving a prefabricated video stream to be played, which is sent by a prefabricated video source, and carrying out audio-video separation on the prefabricated video stream to obtain prefabricated video data to be played and prefabricated audio data to be played, which corresponds to the prefabricated video data.
Optionally, the determining that the cloud terminal device has the first video playing channel capable of independently playing the prefabricated video data specifically includes:
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is full-screen playing, stopping generating the real-time video data and determining that a video playing channel originally used for playing the real-time video data is a first video playing channel capable of independently playing the prefabricated video data;
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is non-full-screen playing, further judging whether the cloud terminal equipment has an idle video playing channel at present, and if so, determining that at least one idle video playing channel is a first video playing channel capable of independently playing the prefabricated video data.
Optionally, after determining that the at least one idle video playback channel is the first video playback channel capable of independently playing the pre-made video data, the method further includes:
acquiring real-time video data to be played;
and sending the real-time video data to the cloud terminal equipment through a second video playing channel except the first video playing channel, so that the cloud terminal equipment plays the real-time video data through the second video playing channel, and the effect of overlapping and playing the prefabricated video data and the real-time video data is realized.
Optionally, after the acquiring the prefabricated video data to be played and specifying the display position and the display hierarchy for playing the prefabricated video data, the method further includes:
if the cloud terminal equipment is judged to be incapable of playing the prefabricated video data, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, converting the prefabricated video data into first video data capable of being played by the cloud terminal equipment, and/or,
if the playing mode of the prefabricated video data is judged to be non-full-screen playing and the cloud terminal equipment does not have an idle video playing channel currently, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, and synthesizing the prefabricated video data and the real-time video data into second video data capable of being played by the cloud terminal equipment;
sending the first video data or the second video data to the cloud terminal equipment so that the cloud terminal equipment can play the first video data or the second video data.
In a second aspect, the present invention provides a method for playing a prefabricated video, which is applied to a cloud terminal device, and the method includes:
receiving prefabricated video data to be played, which is sent by a cloud server, and a display position and a display level for appointed playing of the prefabricated video data through a first video playing channel, wherein the prefabricated video data, the display position and the display level are sent by the cloud server after the cloud terminal device is determined to have the first video playing channel capable of independently playing the prefabricated video data;
and playing the prefabricated video data through the first video playing channel according to the display position and the display hierarchy.
Optionally, the method further comprises:
receiving real-time video data to be played, which is sent by a cloud server, through a second video playing channel except the first video playing channel;
and playing the real-time video data through the second video playing channel, and realizing the effect of overlapping and playing the prefabricated video data and the real-time video data.
Optionally, the method further comprises:
receiving prefabricated audio data to be played corresponding to the prefabricated video data, first audio data synthesized by the prefabricated audio data to be played corresponding to the prefabricated video data and real-time audio data or second audio data converted from the prefabricated audio data to be played corresponding to the prefabricated video data, which are sent by the cloud server;
playing the pre-made audio data, the first audio data or the second audio data.
Optionally, before the receiving the prefabricated video data to be played sent by the cloud server and specifying the display position and the display hierarchy at which the prefabricated video data is played, the method further includes:
providing a video coding algorithm list supported by the cloud terminal equipment to the cloud server, so that the cloud server judges whether the cloud terminal equipment can play the prefabricated video data according to the video coding algorithm list, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data;
the current states of the plurality of video playing channels of the cloud terminal equipment are provided for the cloud server, so that the cloud server judges whether the cloud terminal equipment has an idle video playing channel or not according to the states of the plurality of video playing channels, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data or not.
Optionally, the method further comprises:
receiving first video data converted from the prefabricated video data sent by the cloud server or second video data synthesized by the prefabricated video data and real-time video data;
and playing the first video data or the second video data.
In a third aspect, the present invention provides a cloud server, including:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring prefabricated video data to be played and appointing a display position and a display level for playing the prefabricated video data;
and the sending module is connected with the obtaining module and used for sending the prefabricated video data, the display position and the display hierarchy to a first video playing channel of the cloud terminal equipment after determining that the cloud terminal equipment has the first video playing channel capable of independently playing the prefabricated video data, so that the cloud terminal equipment plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel.
In a fourth aspect, the present invention provides a cloud terminal device, including:
the system comprises a receiving module, a display module and a display module, wherein the receiving module is used for receiving prefabricated video data to be played and sent by a cloud server through a first video playing channel, and appointing a display position and a display level for playing the prefabricated video data, and the prefabricated video data, the display position and the display level are sent by the cloud server after the cloud terminal device is determined to have the first video playing channel capable of independently playing the prefabricated video data;
and the playing module is connected with the receiving module and used for playing the prefabricated video data through the first video playing channel according to the display position and the display hierarchy.
In a fifth aspect, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the prefabricated video playback method as described above.
In a sixth aspect, the present invention provides a prefabricated video playing system, including:
the cloud server is used for executing the prefabricated video playing method;
and the cloud terminal equipment is connected with the cloud server and is used for executing the prefabricated video playing method.
The invention provides a prefabricated video playing method, a cloud server, cloud terminal equipment, a computer readable storage medium and a prefabricated video playing system, wherein prefabricated video data to be played and a display position and a display level for playing the prefabricated video data are designated, and are sent to the cloud terminal equipment through a first video playing channel capable of playing the prefabricated video data independently, so that the cloud terminal equipment plays the prefabricated video data according to the display position and the display level through the first video playing channel, when the cloud terminal equipment has the first video playing channel capable of playing the prefabricated video data independently, the prefabricated video data do not need to be decoded, rendered in real time and recoded, the operation resources can be saved, the video quality can be improved, and the user experience can be improved.
Drawings
Fig. 1 is a flowchart of a method for playing a prefabricated video according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for playing a prefabricated video according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cloud server according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a cloud terminal device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a prefabricated video playing system according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the following detailed description will be made with reference to the accompanying drawings.
It is to be understood that the specific embodiments and figures described herein are merely illustrative of the invention and are not limiting of the invention.
It is to be understood that the embodiments and features of the embodiments can be combined with each other without conflict.
It is to be understood that, for the convenience of description, only parts related to the present invention are shown in the drawings of the present invention, and parts not related to the present invention are not shown in the drawings.
It should be understood that each unit and module related in the embodiments of the present invention may correspond to only one physical structure, may also be composed of multiple physical structures, or multiple units and modules may also be integrated into one physical structure.
It will be understood that, without conflict, the functions, steps, etc. noted in the flowchart and block diagrams of the present invention may occur out of the order noted in the figures.
It is to be understood that the flowchart and block diagrams of the present invention illustrate the architecture, functionality, and operation of possible implementations of systems, apparatus, devices and methods according to various embodiments of the present invention. Each block in the flowchart or block diagrams may represent a unit, module, segment, code, which comprises executable instructions for implementing the specified function(s). Furthermore, each block or combination of blocks in the block diagrams and flowchart illustrations can be implemented by a hardware-based system that performs the specified functions or by a combination of hardware and computer instructions.
It should be understood that the units and modules referred to in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, for example, the units and modules may be located in a processor.
To facilitate understanding of the present invention, a cloud terminal architecture is first introduced.
With the development of society and the improvement of technology, the cloud terminal technology is paid more and more attention by many people. The cloud terminal based on cloud computing transfers a large amount of computing capacity required by a traditional terminal from end-side equipment hardware and puts the computing capacity to a cloud computing unit for implementation. The cloud terminal enables a user to get rid of dependence on computing power of a single device, and high-performance, high-image-quality and consistent device experience can be obtained through any common device.
The implementation of the cloud terminal depends on the support of numerous technologies, and one of the most important technologies is cloud real-time rendering of real-time 2D/3D images required by a graphical user operation interface. The image displayed on the user screen is composed of a plurality of images superimposed and is generated in real time when the user interacts with the application, and in the conventional terminal, the real-time rendering of the image is one of the core functions of the terminal. In the cloud terminal technology, real-time rendering of images needs to be completed in a cloud computing unit, the cloud computing unit compresses an image sequence obtained through rendering by using a video coding algorithm to form a video stream, the video stream is transmitted to hardware equipment on a user side, the video stream is decoded and played by the hardware equipment, and a user can see dynamic real-time images on a screen.
The image information to be displayed to the user includes, in addition to the image sequence generated in real time, a pre-generated image sequence, typically a pre-produced video. The display of the prefabricated video has two situations, one is that a single video stream is displayed on a full screen on a screen; alternatively, one or more of the pre-formed video images are displayed superimposed with a sequence of images generated in real time.
In pre-made video, there is audio in addition to the images. The cloud computing unit can perform audio synthesis while finishing image rendering, and synthesize data of a plurality of audio sources into audio stream data. In the existing scheme, the audio data in the prefabricated video is also decoded and played at the cloud, and the decoded data is superimposed and synthesized with other audio data and then encoded into a new audio stream.
Decoding the pre-made video data and the pre-made audio data consumes a lot of computational resources. Especially, when the prefabricated video image is played in a full screen mode, the image generated in real time cannot be displayed, the calculated amount is wasted, the prefabricated video data and the prefabricated audio data are decoded, resampled and recoded, the quality of the obtained new video and the new audio is lower than that of the original video and the original audio, and user experience is influenced.
Therefore, the method for processing the prefabricated video stream according to the situation is provided for the cloud terminal, unnecessary decoding, resampling and recoding of the prefabricated video data and the prefabricated audio data in the cloud computing unit are avoided, resource consumption of the cloud computing unit is reduced, quality of the prefabricated video stream can be improved when the prefabricated video stream is played, and user experience is improved.
Example 1:
as shown in fig. 1, the present invention provides a method for playing a prefabricated video, which is applied to a cloud server, and the method includes:
s11, acquiring prefabricated video data to be played, and designating a display position and a display level for playing the prefabricated video data;
and S12, after determining that the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data, sending the prefabricated video data, the display position and the display hierarchy to the first video playing channel of the cloud terminal equipment, so that the cloud terminal equipment plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel.
Specifically, in this embodiment, a playing method that prefabricated video data (i.e., images) in a prefabricated video stream do not need to be decoded, rendered in real time, and re-encoded is provided, after it is determined that a cloud terminal device has a first video playing channel capable of independently playing the prefabricated video data, the prefabricated video data is independently played through the first video playing channel according to a specified display position and display hierarchy, the first video playing channel is only responsible for playing the prefabricated video data on the cloud terminal device, and may allow other video playing channels of the cloud terminal device to simultaneously play other video data, each video playing channel only needs to be responsible for playing its own content, and as for a playing effect finally presented by the cloud terminal device, the playing effect is the sum of the playing contents of all the video playing channels.
Optionally, the method further comprises:
acquiring prefabricated audio data to be played corresponding to the prefabricated video data;
and if the real-time audio data are not detected and the cloud terminal equipment is judged to be capable of playing the prefabricated audio data, sending the prefabricated audio data to the cloud terminal equipment so that the cloud terminal equipment can play the prefabricated audio data.
Specifically, in this embodiment, when the prefabricated video data is played, if the prefabricated video data has corresponding prefabricated audio data, the corresponding prefabricated audio data needs to be played synchronously, and a method that does not need to decode, resample, and re-encode the prefabricated audio data may also be preferentially adopted for the playing method of the prefabricated audio data, specifically, if there is no real-time audio data that needs to be synthesized with the prefabricated audio data at present, the prefabricated audio data may be directly played by the cloud terminal device (may be an encoding format in which the cloud terminal device supports the prefabricated audio data), and the prefabricated audio data may be directly sent to the cloud terminal device for playing.
Optionally, after the pre-made audio data to be played corresponding to the pre-made video data is obtained, the method further includes:
if the real-time audio data are detected, synthesizing the prefabricated audio data and the real-time audio data into first audio data which can be played by the cloud terminal equipment;
if no real-time audio data is detected, further judging whether the cloud terminal equipment can play the prefabricated audio data, and if not, converting the prefabricated audio data into second audio data which can be played by the cloud terminal equipment;
and sending the first audio data or the second audio data to the cloud terminal equipment so that the cloud terminal equipment can play the first audio data or the second audio data.
Specifically, in this embodiment, if the prefabricated audio data needs to be synthesized with real-time audio data, or the cloud terminal device cannot play the prefabricated audio data, the prefabricated audio data needs to be decoded, resampled, and recoded at the cloud end, and the audio data corresponding to the audio data after the processing is sent to the cloud terminal device for playing.
Optionally, the acquiring the to-be-played prefabricated video data and the acquiring the to-be-played prefabricated audio data corresponding to the prefabricated video data specifically include:
the method comprises the steps of receiving a prefabricated video stream to be played, which is sent by a prefabricated video source, and carrying out audio-video separation on the prefabricated video stream to obtain prefabricated video data to be played and prefabricated audio data to be played, which corresponds to the prefabricated video data.
Specifically, in this embodiment, the pre-made video data to be played and the pre-made audio data to be played corresponding to the pre-made video data are generally from a pre-made video stream sent by the same pre-made video source, where the pre-made video stream includes pre-made video data (images) and pre-made audio data (sounds), and is separated to obtain the pre-made video data and the pre-made audio data.
Optionally, the determining that the cloud terminal device has the first video playing channel capable of independently playing the prefabricated video data specifically includes:
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is full-screen playing, stopping generating the real-time video data and determining that a video playing channel originally used for playing the real-time video data is a first video playing channel capable of independently playing the prefabricated video data;
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is non-full-screen playing, further judging whether the cloud terminal equipment has an idle video playing channel at present, and if so, determining that at least one idle video playing channel is a first video playing channel capable of independently playing the prefabricated video data.
Specifically, in this embodiment, when it is determined that the playing mode of the prefabricated video data is full-screen playing according to the display position, real-time video data does not need to be generated at this time, and the cloud terminal device only plays the prefabricated video data, and if the cloud terminal device supports the encoding format of the prefabricated video data at this time, the prefabricated video data does not need to be decoded, rendered in real time and re-encoded, but is directly sent to the cloud terminal device to be played, and at this time, even if the cloud terminal device has only one video playing channel (originally used for playing real-time video data), the prefabricated video data can be directly played (because the real-time video data is paused to be played); at this time, the generation of the real-time audio data can be paused, and the cloud terminal equipment can only play the pre-made audio data.
Optionally, after determining that the at least one idle video playback channel is the first video playback channel that can independently play the pre-made video data, the method further includes:
acquiring real-time video data to be played;
and sending the real-time video data to the cloud terminal equipment through a second video playing channel except the first video playing channel, so that the cloud terminal equipment plays the real-time video data through the second video playing channel, and the effect of overlapping and playing the prefabricated video data and the real-time video data is realized.
Specifically, in this embodiment, when it is determined that the playing mode of the prefabricated video data is non-full-screen playing according to the display position, it is indicated that the prefabricated video data is required to be overlaid on the real-time video data for playing, and at this time, if the prefabricated video data and the real-time video data can be respectively sent to the cloud terminal device through a special video playing channel for playing, an overlaid playing effect can be achieved, without processing of decoding the prefabricated video data at a cloud end, real-time rendering and re-encoding after overlaying the prefabricated video data with the real-time video data, the overlaid playing effect is also achieved, but computing resources are saved and video playing quality is improved; in this embodiment, the real-time video data is defaulted (may be pre-agreed with the cloud terminal device) to be the bottommost layer display and the full-screen display, and therefore, it is not necessary to send a designated display position and a designated display hierarchy of the real-time video data to the cloud terminal device, and the real-time video data is played through the second video playing channel according to the bottommost layer display and the full-screen display, so that the overlapping playing effect of the prefabricated video data and the real-time video data can be realized.
Optionally, after the acquiring the prefabricated video data to be played and specifying the display position and the display hierarchy for playing the prefabricated video data, the method further includes:
if the cloud terminal equipment is judged to be incapable of playing the prefabricated video data, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, converting the prefabricated video data into first video data capable of being played by the cloud terminal equipment, and/or,
if the playing mode of the prefabricated video data is judged to be non-full-screen playing and the cloud terminal equipment does not have an idle video playing channel currently, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, and synthesizing the prefabricated video data and the real-time video data into second video data capable of being played by the cloud terminal equipment;
sending the first video data or the second video data to the cloud terminal equipment so that the cloud terminal equipment can play the first video data or the second video data.
Specifically, in this embodiment, if it is determined that the pre-made video data needs to be decoded, rendered in real time, and re-encoded at the cloud, corresponding processing operations are performed according to specific situations, and then the video data obtained after the processing is sent.
Example 2:
as shown in fig. 2, an embodiment 2 of the present invention provides a prefabricated video playing method, which is applied to a cloud terminal device, and the method includes:
s21, receiving prefabricated video data to be played, which are sent by a cloud server, through a first video playing channel, and appointing a display position and a display level for playing the prefabricated video data, wherein the prefabricated video data, the display position and the display level are sent by the cloud server after the cloud terminal device is determined to have the first video playing channel capable of independently playing the prefabricated video data;
and S22, playing the prefabricated video data through the first video playing channel according to the display position and the display hierarchy.
Specifically, in this embodiment, the method and the method described in embodiment 1 solve the corresponding technical problem and achieve the corresponding technical effect, and for the case that the pre-made video data does not need to be decoded, rendered in real time, and re-encoded, the cloud terminal device provides a first video playing channel capable of independently playing the pre-made video data, and independently plays the pre-made video data through the first video playing channel, thereby achieving the playing effect of displaying the image of the pre-made video at the designated display position and the designated display level.
Optionally, the method further comprises:
receiving real-time video data to be played, which is sent by a cloud server, through a second video playing channel except the first video playing channel;
and playing the real-time video data through the second video playing channel, and realizing the effect of overlapping and playing the prefabricated video data and the real-time video data.
Specifically, in this embodiment, the cloud terminal device independently receives and plays the real-time video data through the second video playing channel except the first video playing channel, and since the prefabricated video data is independently received and played by the first video playing channel, the two can achieve the effect of overlapping and playing on the cloud terminal device.
Optionally, the method further comprises:
receiving prefabricated audio data to be played corresponding to the prefabricated video data, first audio data synthesized by the prefabricated audio data to be played corresponding to the prefabricated video data and real-time audio data or second audio data converted from the prefabricated audio data to be played corresponding to the prefabricated video data, which are sent by the cloud server;
playing the pre-made audio data, the first audio data or the second audio data.
Specifically, in this embodiment, the cloud terminal device further receives the audio data sent by the cloud server to perform corresponding playing.
Optionally, before the receiving the prefabricated video data to be played sent by the cloud server and specifying the display position and the display hierarchy for playing the prefabricated video data, the method further includes:
providing a video coding algorithm list supported by the cloud terminal equipment to the cloud server, so that the cloud server judges whether the cloud terminal equipment can play the prefabricated video data according to the video coding algorithm list, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data;
the current states of the plurality of video playing channels of the cloud terminal equipment are provided for the cloud server, so that the cloud server judges whether the cloud terminal equipment has an idle video playing channel or not according to the states of the plurality of video playing channels, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data or not.
Specifically, in this embodiment, the cloud terminal device provides a video coding algorithm list supported by the cloud terminal device and current states of a plurality of video playing channels to the cloud terminal server, so that the cloud terminal server can effectively determine whether the prefabricated video data can be directly sent to the cloud terminal device for playing without decoding, rendering in real time and re-encoding the prefabricated video data at the cloud terminal.
Optionally, the method further comprises:
receiving first video data converted from the prefabricated video data sent by the cloud server or second video data synthesized by the prefabricated video data and real-time video data;
and playing the first video data or the second video data.
Specifically, in this embodiment, under a corresponding condition, the cloud terminal device further receives the video data that is sent after the cloud server decodes, renders and re-encodes the pre-made video data in real time, and then plays the video data correspondingly.
Example 3:
as shown in fig. 3, an embodiment 3 of the present invention provides a cloud server, including:
the system comprises an acquisition module 11, a display module and a display module, wherein the acquisition module is used for acquiring prefabricated video data to be played and appointing a display position and a display level for playing the prefabricated video data;
a sending module 12, connected to the obtaining module 11, configured to send the prefabricated video data, the display position, and the display hierarchy to a first video playing channel of the cloud terminal device after determining that the cloud terminal device has the first video playing channel capable of independently playing the prefabricated video data, so that the cloud terminal device plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel.
Alternatively,
the acquisition module 11 is further configured to acquire prefabricated audio data to be played corresponding to the prefabricated video data;
the sending module 12 is further configured to send the prefabricated audio data to the cloud terminal device if real-time audio data is not detected and it is determined that the cloud terminal device can play the prefabricated audio data, so that the cloud terminal device plays the prefabricated audio data.
Optionally, the sending module 12 is further configured to:
if real-time audio data are detected, synthesizing the prefabricated audio data and the real-time audio data into first audio data which can be played by the cloud terminal equipment;
if no real-time audio data is detected, further judging whether the cloud terminal equipment can play the prefabricated audio data, and if not, converting the prefabricated audio data into second audio data which can be played by the cloud terminal equipment;
and sending the first audio data or the second audio data to the cloud terminal equipment so that the cloud terminal equipment can play the first audio data or the second audio data.
Optionally, the obtaining module 11 is specifically configured to:
the method comprises the steps of receiving a prefabricated video stream to be played, which is sent by a prefabricated video source, and carrying out audio-video separation on the prefabricated video stream to obtain prefabricated video data to be played and prefabricated audio data to be played, which corresponds to the prefabricated video data.
Optionally, the sending module 12 is further specifically configured to:
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is full-screen playing, stopping generating the real-time video data and determining that a video playing channel originally used for playing the real-time video data is a first video playing channel capable of independently playing the prefabricated video data;
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is non-full-screen playing, further judging whether the cloud terminal equipment has an idle video playing channel at present, and if so, determining that at least one idle video playing channel is a first video playing channel capable of independently playing the prefabricated video data.
Alternatively,
the obtaining module 11 is further configured to obtain real-time video data to be played;
the sending module 12 is further configured to send the real-time video data to the cloud terminal device through a second video playing channel other than the first video playing channel, so that the cloud terminal device plays the real-time video data through the second video playing channel, and an effect of overlapping and playing the prefabricated video data and the real-time video data is achieved.
Optionally, the sending module 12 is further configured to:
if the cloud terminal equipment is judged to be incapable of playing the prefabricated video data, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, converting the prefabricated video data into first video data capable of being played by the cloud terminal equipment, and/or,
if the playing mode of the prefabricated video data is judged to be non-full-screen playing and the cloud terminal equipment does not have an idle video playing channel currently, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, and synthesizing the prefabricated video data and the real-time video data into second video data capable of being played by the cloud terminal equipment;
sending the first video data or the second video data to the cloud terminal equipment so that the cloud terminal equipment can play the first video data or the second video data.
Example 4:
as shown in fig. 4, embodiment 4 of the present invention provides a cloud terminal device, including:
the receiving module 21 is configured to receive, through a first video playing channel, to-be-played prefabricated video data sent by a cloud server, and a display position and a display hierarchy at which the prefabricated video data is designated to be played, where the prefabricated video data, the display position, and the display hierarchy are sent by the cloud server after it is determined that the cloud terminal device has the first video playing channel capable of independently playing the prefabricated video data;
and the playing module 22 is connected to the receiving module 21, and configured to play the prefabricated video data through the first video playing channel according to the display position and the display hierarchy.
Alternatively,
the receiving module 21 is further configured to receive real-time video data to be played, which is sent by a cloud server, through a second video playing channel other than the first video playing channel;
the playing module 22 is further configured to play the real-time video data through the second video playing channel, and achieve an effect of playing the prefabricated video data and the real-time video data in a superimposed manner.
Alternatively,
the receiving module 21 is further configured to receive prefabricated audio data to be played and corresponding to the prefabricated video data, first audio data synthesized by the prefabricated audio data to be played and corresponding to the prefabricated video data and real-time audio data, or second audio data converted from the prefabricated audio data to be played and corresponding to the prefabricated video data, which are sent by the cloud server;
the playing module 22 is further configured to play the pre-made audio data, the first audio data, or the second audio data.
Optionally, the cloud terminal device further includes a providing module, configured to:
providing a video coding algorithm list supported by the cloud terminal equipment to the cloud server, so that the cloud server judges whether the cloud terminal equipment can play the prefabricated video data according to the video coding algorithm list, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data;
the current video playing channel states of the cloud terminal equipment are provided for the cloud server, so that the cloud server judges whether the cloud terminal equipment currently has an idle video playing channel according to the video playing channel states, and then whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data is determined.
Alternatively,
the receiving module 21 is further configured to receive first video data converted from the prefabricated video data sent by the cloud server, or second video data synthesized from the prefabricated video data and real-time video data;
the playing module 22 is further configured to play the first video data or the second video data.
Example 5:
embodiment 5 of the present invention provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the method for playing a prefabricated video according to embodiment 1 or embodiment 2 is implemented.
The computer-readable storage media include volatile or nonvolatile, removable or non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, computer program modules or other data. Computer-readable storage media include, but are not limited to, RAM (Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash Memory or other Memory technology, CD-ROM (Compact disk Read-Only Memory), digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
Example 6:
as shown in fig. 5, embodiment 6 of the present invention provides a prefabricated video playing system, including:
the cloud server 1 is configured to execute the prefabricated video playing method according to embodiment 1;
the cloud terminal device 2 is connected to the cloud server 1, and is configured to execute the prefabricated video playing method according to embodiment 2.
Specifically, in the present embodiment, the cloud server 1 has functions of receiving a prefabricated video stream (including images and sound), generating a real-time video (images) and a real-time audio (sound), decoding a video, decoding an audio, synthesizing a video, synthesizing an audio, encoding a video, encoding an audio, and transmitting a media stream (including a video stream and an audio stream), and the cloud terminal device 2 has functions of receiving a media stream and playing a media stream; the method interaction realization flows of the embodiment 1 and the embodiment 2 are as follows:
1) The method comprises the following steps that a cloud server 1 receives a prefabricated video stream to be played, which is sent by a prefabricated video source, and selects a proper decapsulation method to separate prefabricated video data and prefabricated audio data in the prefabricated video stream, wherein the decapsulation format supported by the cloud server 1 comprises MP4, AVI, MOV, MKV and the like;
2) The cloud server 1 separately processes and sends the prefabricated video data and the prefabricated audio data:
2.1 Processing and sending of the prefabricated video data by the cloud server 1;
2.1.1 Appointing a display position and a display level for playing the prefabricated video data according to the playing requirement of the prefabricated video;
2.1.2 ) the cloud server 1 obtains a video coding algorithm list supported by the cloud terminal device 2, and compares the video coding algorithm list with a coding algorithm of the prefabricated video data, if the cloud terminal device is judged not to support the coding algorithm of the prefabricated video data, the prefabricated video data cannot be directly played, the prefabricated video data needs to be processed at the cloud end, at this time, the step 2.1.5 is performed, otherwise, the step 2.1.3 is performed;
2.1.3 The cloud server 1 further judges whether the prefabricated video data needs to be displayed in a full screen mode on the screen of the cloud terminal device 2 according to the display position, if so, the real-time video data is stopped being generated, meanwhile, the prefabricated video data is sent to a video playing channel of the cloud terminal device 2, which originally sends the real-time video data, and if not, the step 2.1.4 is carried out;
2.1.4 The cloud server 1 further determines whether the cloud terminal device 2 supports simultaneous playing of multiple video streams (i.e., whether multiple video playing channels exist), and if so, sends the prefabricated video data to a certain idle video playing channel of the cloud terminal device 2;
2.1.5 Cloud server 1 performs real-time hybrid rendering on the non-transmitted prefabricated video data, including: decoding the prefabricated video data, superposing the prefabricated video data on the real-time video data according to the display position, synthesizing the prefabricated video data into a real-time image sequence, encoding the real-time image sequence into a format which can be played by the cloud terminal equipment 2, and then sending the real-time image sequence to the cloud terminal equipment 2;
2.2 Processing and sending of the pre-made audio data by the cloud server 1;
2.2.1 The cloud server 1 judges whether the cloud server is generating real-time audio, and if so, audio synthesis processing needs to be performed on the prefabricated audio data and the real-time audio data, wherein the synthesis processing method comprises the steps of decoding the prefabricated audio data, overlapping the decoded prefabricated audio data with the real-time audio data, encoding the decoded prefabricated audio data into first audio data, and sending the first audio data to the cloud terminal device 2;
2.2.2 If the cloud server 1 does not generate real-time audio at this time, by obtaining an audio coding algorithm list supported by the cloud terminal device 2 and comparing the audio coding algorithm list with a coding algorithm of the prefabricated audio data, it is determined whether the cloud terminal device 2 can play the prefabricated audio data, and if not, after the prefabricated audio data needs to be decoded, the prefabricated audio data is encoded into second audio data which can be played by the cloud terminal device 2, and the second audio data is sent to the cloud terminal device 2, otherwise, the prefabricated audio data can be directly sent to the cloud terminal device 2;
3) The cloud terminal device 2 plays the received video data and audio data, and if the video data received by different video playing channels exist, the display positions and the display levels of the video data played by the cloud terminal device are respectively controlled by the different video playing channels, so that the effect of overlapping playing is realized.
Embodiments 1 to 6 of the present invention provide a prefabricated video playing method, a cloud server, a cloud terminal device, a computer-readable storage medium, and a prefabricated video playing system, where prefabricated video data to be played and a display position and a display hierarchy at which the prefabricated video data is designated to be played are sent to the cloud terminal device through a first video playing channel capable of independently playing the prefabricated video data, so that the cloud terminal device plays the prefabricated video data through the first video playing channel according to the display position and the display hierarchy, and when the cloud terminal device has the first video playing channel capable of independently playing the prefabricated video data, the prefabricated video data does not need to be decoded, rendered in real time, and re-encoded, so that computational resources can be saved, video playing quality can be improved, and user experience can be improved.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (16)

1. A prefabricated video playing method is characterized by being applied to a cloud server, and comprises the following steps:
acquiring prefabricated video data to be played, and appointing a display position and a display level for playing the prefabricated video data;
after determining that the cloud terminal device has a first video playing channel capable of independently playing the prefabricated video data, sending the prefabricated video data, the display position and the display hierarchy to the first video playing channel of the cloud terminal device, so that the cloud terminal device plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel.
2. The method of claim 1, further comprising:
acquiring prefabricated audio data to be played corresponding to the prefabricated video data;
and if the real-time audio data are not detected and the cloud terminal equipment is judged to be capable of playing the prefabricated audio data, sending the prefabricated audio data to the cloud terminal equipment so that the cloud terminal equipment can play the prefabricated audio data.
3. The method of claim 2, wherein after the pre-made audio data to be played corresponding to the pre-made video data is obtained, the method further comprises:
if the real-time audio data are detected, synthesizing the prefabricated audio data and the real-time audio data into first audio data which can be played by the cloud terminal equipment;
if no real-time audio data is detected, further judging whether the cloud terminal equipment can play the prefabricated audio data, and if not, converting the prefabricated audio data into second audio data which can be played by the cloud terminal equipment;
and sending the first audio data or the second audio data to the cloud terminal equipment so that the cloud terminal equipment can play the first audio data or the second audio data.
4. The method according to claim 2, wherein the acquiring the pre-made video data to be played and the acquiring the pre-made audio data to be played corresponding to the pre-made video data specifically comprise:
the method comprises the steps of receiving a prefabricated video stream to be played, which is sent by a prefabricated video source, and carrying out audio-video separation on the prefabricated video stream to obtain prefabricated video data to be played and prefabricated audio data to be played, which corresponds to the prefabricated video data.
5. The method according to any one of claims 1 to 4, wherein the determining that the cloud terminal device has the first video playback channel that can independently play the pre-made video data specifically includes:
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is full-screen playing, stopping generating the real-time video data and determining that a video playing channel originally used for playing the real-time video data is a first video playing channel capable of independently playing the prefabricated video data;
if the cloud terminal equipment can play the prefabricated video data and the playing mode of the prefabricated video data is non-full-screen playing, further judging whether the cloud terminal equipment has an idle video playing channel at present, and if so, determining that at least one idle video playing channel is a first video playing channel capable of independently playing the prefabricated video data.
6. The method of claim 5, wherein after determining that the at least one free video playback channel is the first video playback channel that can independently play the pre-made video data, the method further comprises:
acquiring real-time video data to be played;
and sending the real-time video data to the cloud terminal equipment through a second video playing channel except the first video playing channel, so that the cloud terminal equipment plays the real-time video data through the second video playing channel, and the effect of overlapping and playing the prefabricated video data and the real-time video data is realized.
7. The method of claim 5, wherein after the pre-made video data to be played is obtained and the display position and the display hierarchy for playing the pre-made video data are specified, the method further comprises:
if the cloud terminal equipment is judged to be incapable of playing the prefabricated video data, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, converting the prefabricated video data into first video data capable of being played by the cloud terminal equipment, and/or,
if the playing mode of the prefabricated video data is judged to be non-full-screen playing and the cloud terminal equipment does not have an idle video playing channel currently, determining that the cloud terminal equipment does not have a first video playing channel capable of independently playing the prefabricated video data, and synthesizing the prefabricated video data and the real-time video data into second video data capable of being played by the cloud terminal equipment;
sending the first video data or the second video data to the cloud terminal equipment so that the cloud terminal equipment can play the first video data or the second video data.
8. A prefabricated video playing method is applied to cloud terminal equipment and comprises the following steps:
receiving prefabricated video data to be played, which is sent by a cloud server, and a display position and a display level for appointed playing of the prefabricated video data through a first video playing channel, wherein the prefabricated video data, the display position and the display level are sent by the cloud server after the cloud terminal device is determined to have the first video playing channel capable of independently playing the prefabricated video data;
and playing the prefabricated video data through the first video playing channel according to the display position and the display hierarchy.
9. The method of claim 8, further comprising:
receiving real-time video data to be played, which is sent by a cloud server, through a second video playing channel except the first video playing channel;
and playing the real-time video data through the second video playing channel, and realizing the effect of overlapping and playing the prefabricated video data and the real-time video data.
10. The method of claim 8, further comprising:
receiving prefabricated audio data to be played corresponding to the prefabricated video data, first audio data synthesized by the prefabricated audio data to be played corresponding to the prefabricated video data and real-time audio data or second audio data converted from the prefabricated audio data to be played corresponding to the prefabricated video data, which are sent by the cloud server;
playing the pre-made audio data, the first audio data or the second audio data.
11. The method of claim 8, wherein before receiving the pre-made video data to be played back sent by the cloud server and specifying a display location and a display hierarchy for playing back the pre-made video data, the method further comprises:
providing a video coding algorithm list supported by the cloud terminal equipment to the cloud server, so that the cloud server judges whether the cloud terminal equipment can play the prefabricated video data according to the video coding algorithm list, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data;
the current states of the plurality of video playing channels of the cloud terminal equipment are provided for the cloud server, so that the cloud server judges whether the cloud terminal equipment has an idle video playing channel or not according to the states of the plurality of video playing channels, and further determines whether the cloud terminal equipment has a first video playing channel capable of independently playing the prefabricated video data or not.
12. The method of claim 8, further comprising:
receiving first video data converted from the prefabricated video data sent by the cloud server or second video data synthesized by the prefabricated video data and real-time video data;
and playing the first video data or the second video data.
13. A cloud server, comprising:
the system comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring prefabricated video data to be played and appointing a display position and a display level for playing the prefabricated video data;
and the sending module is connected with the obtaining module and used for sending the prefabricated video data, the display position and the display hierarchy to a first video playing channel of the cloud terminal equipment after determining that the cloud terminal equipment has the first video playing channel capable of independently playing the prefabricated video data, so that the cloud terminal equipment plays the prefabricated video data according to the display position and the display hierarchy through the first video playing channel.
14. A cloud terminal device, comprising:
the system comprises a receiving module, a display module and a display module, wherein the receiving module is used for receiving prefabricated video data to be played and sent by a cloud server through a first video playing channel, and appointing a display position and a display level for playing the prefabricated video data, and the prefabricated video data, the display position and the display level are sent by the cloud server after the cloud terminal device is determined to have the first video playing channel capable of independently playing the prefabricated video data;
and the playing module is connected with the receiving module and used for playing the prefabricated video data through the first video playing channel according to the display position and the display hierarchy.
15. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of playing a pre-made video according to any one of claims 1-7 or 8-12.
16. A prefabricated video playback system, comprising:
the cloud server is used for executing the prefabricated video playing method of any one of claims 1-7;
cloud terminal equipment connected with the cloud server and used for executing the prefabricated video playing method according to any one of claims 8 to 12.
CN202211324615.0A 2022-10-27 2022-10-27 Prefabricated video playing method, server, terminal, medium and system Pending CN115695843A (en)

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