CN114915797A - Multi-channel video decoding method and device and related products - Google Patents
Multi-channel video decoding method and device and related products Download PDFInfo
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- CN114915797A CN114915797A CN202210244447.8A CN202210244447A CN114915797A CN 114915797 A CN114915797 A CN 114915797A CN 202210244447 A CN202210244447 A CN 202210244447A CN 114915797 A CN114915797 A CN 114915797A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
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Abstract
The invention discloses a multi-channel video decoding method, a device and a related product, wherein the method is based on a video decoding card on a rebroadcasting terminal and comprises the following steps: receiving a plurality of video signals transmitted by a signal receiver; performing handshake analysis on a plurality of video signals simultaneously and respectively according to a plurality of preset decoding channels; and sending the analyzed video signals to a display end. According to the multi-channel video decoding method, the multi-channel video decoding device and the related products, the video decoding card is used for assisting the signal receiver to decode, so that the signal receiver is greatly reduced in voltage, the decoding pressure of the signal receiver is reduced, and the video analysis speed is increased; meanwhile, multi-channel decoding and display are realized by means of simultaneous handshake resolution of multiple channels, decoding efficiency is improved, a faster display effect is realized, blocking and collapse faults in the decoding process can be reduced, and dependence on performance of decoding equipment is less.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of video parsing technologies, and in particular, to a multi-channel video decoding method, apparatus, and related product.
[ background of the invention ]
In the existing video playing process, after a video signal is collected to a rebroadcasting terminal, the video signal needs to be analyzed in time and then displayed by a display after being received, or the video signal needs to be analyzed and displayed independently by respective displays. However, such a signal parsing scheme is very stressful for a video signal collector (e.g. a tv box), and such a decoding scheme belongs to soft decoding, and has limited performance. The decoding is a process consuming a large amount of resources, so the decoding efficiency of the existing video signal decoding mode is not high, and the decoding process is easy to have the stuck and running faults, and the performance of decoding equipment depends more.
Accordingly, there is a need for a method, an apparatus and a related product for multi-channel video decoding to overcome the above-mentioned drawbacks.
[ summary of the invention ]
The invention aims to provide a multi-channel video decoding method, a multi-channel video decoding device and a related product, and aims to solve the problem that the existing video signal decoding mode is low in decoding efficiency, reduce blocking and rushing faults in the decoding process and have less dependence on the performance of decoding equipment.
In order to achieve the above object, a first aspect of the present invention provides a multi-channel video decoding method based on a video decoding card on a relay terminal, including the following steps:
receiving a plurality of video signals transmitted by a signal receiver;
performing handshake analysis on the plurality of video signals simultaneously and respectively according to a plurality of preset decoding channels;
and sending the analyzed video signals to a display end.
In a preferred embodiment, the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously and respectively includes:
decrypting the plurality of video signals.
In a preferred embodiment, the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously and respectively includes:
performing multi-channel analysis on a plurality of different video videos simultaneously; the video comprises one or more of 1080P, 400 ten thousand pixel video, 300 ten thousand pixel video and 4K pixel video.
In a preferred embodiment, the method further comprises the steps of:
and simultaneously decoding the video in the compressed state.
In a preferred embodiment, the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously and respectively includes:
and simultaneously and respectively carrying out multi-channel analysis on videos of different signal channels sent by the television set top box.
In a preferred embodiment, the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously and respectively includes:
and analyzing the multi-channel signal video sent by the video conference in real time.
The second aspect of the present invention provides a multi-channel video decoding device, including a video decoding card that is pluggable to a relay terminal, including:
the video signal receiving module is used for receiving a plurality of video signals sent by the signal receiver;
the multichannel analysis module is used for simultaneously and respectively performing handshake analysis on the plurality of video signals according to a plurality of preset decoding channels;
and the video signal sending module is used for sending the analyzed video signals to the display terminal.
A third aspect of the present invention provides a terminal comprising a memory, a processor and a computer program stored in the memory, the computer program, when executed by the processor, implementing the steps of the multi-channel video decoding method according to any one of the above embodiments.
A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the multi-channel video decoding method according to any one of the above embodiments.
A fifth aspect of the invention provides a computer program product comprising a computer program or instructions which, when executed by a processor, performs the steps of the multi-channel video decoding method as described in any one of the above embodiments.
According to the multi-channel video decoding method, the multi-channel video decoding device and the related products, the video decoding card is used for assisting the signal receiver to decode, so that the signal receiver is greatly reduced in voltage, the decoding pressure of the signal receiver is reduced, and the video analysis speed is increased; meanwhile, multi-channel decoding and display are realized by means of simultaneous handshake resolution of multiple channels, decoding efficiency is improved, a faster display effect is realized, blocking and collapse faults in the decoding process can be reduced, and dependence on performance of decoding equipment is less.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of a multi-channel video decoding method provided by the present invention;
fig. 2 is a block diagram of a multi-channel video decoding apparatus according to the present invention.
[ detailed description ] A
In order to make the objects, technical solutions and advantageous effects of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration only and not by way of limitation.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Example one
In an embodiment of the invention, a multi-channel video decoding method is provided and is based on a video decoding card on a rebroadcast terminal. The video decoding card comprises an NPU (network-Processing Unit) chip with a decoding function, has multi-channel decoding capability, has the function on the aspects of signal searching and receiving, can divide signals of different channels into different receiving channels for respective simultaneous analysis, and can also allocate videos of different codes to different channels for respective simultaneous analysis.
As shown in fig. 1, the multi-channel video decoding method includes the following steps S101 to S103.
Step S101, receiving a plurality of video signals transmitted by the signal receiver.
The signal receiver may be a video signal receiving device such as a television set-top box. The signal receiver and the display end can be integrally designed, so that the video decoding card can be connected to the signal receiver in a pluggable mode through a USB interface and the like.
Step S102, performing handshake analysis on a plurality of video signals according to a plurality of preset decoding channels.
The video signals can be directly sent to the decoding equipment, so that the handshake analysis is carried out on the video signals in the sub-channels, and the multi-channel decoding and display can be carried out. For example, a video decoder card decodes 4 channels, each channel is configured with a decoding unit, and if 8 channels need to be decoded, 2 decoders can be connected (and so on, one channel corresponds to one channel). Specifically, the following description is made by three specific application scenarios:
firstly, carrying out multichannel analysis on a plurality of different video videos simultaneously; the video comprises one or more of 1080P, 400 ten thousand pixel video, 300 ten thousand pixel video and 4K pixel video. Specifically, for multi-channel videos (videos with different codes are all subjected to high compression ratio), the videos need to be analyzed (decoded into YUV) to be displayed, and the hardware decoding equipment can allocate the multi-channel videos to different decoding channels to realize split-screen display of different video files. Further, the compressed video may be decoded simultaneously.
And secondly, simultaneously and respectively carrying out multi-channel analysis on videos of different signal channels sent by the television set top box. Specifically, for a plurality of paths of video direct current (online code streams), the signal receiver can receive a plurality of signals, and only the signals cannot be simultaneously started for multichannel handshake and analysis, so that the plurality of video signals are correspondingly and simultaneously decoded by a plurality of decoding units of the video decoding card, and accordingly, the pressure of the television set top box is reduced, the video opening time of a user is fast, the channel switching time is shortened, and the selection of a plurality of paths of videos during screen projection is provided.
And thirdly, analyzing the multi-channel signal videos sent by the video conference in real time, thereby realizing the simultaneous display of the multi-channel videos during the video conference.
And step S103, sending the analyzed video signals to a display end.
Further, in one embodiment, the method further comprises the steps of: the plurality of video signals may be decrypted or it may be set which television channels are encrypted or which video conferences are encrypted.
Example two
The present invention provides a multi-channel video decoding apparatus 100, which includes a video decoding card 10 that can be plugged into a relay terminal, and it should be noted that the implementation principle and implementation manner of the multi-channel video decoding apparatus 100 are consistent with the multi-channel video decoding method described above, and therefore the details are not repeated below.
As shown in fig. 2, the multi-channel video decoding apparatus 100 further includes:
a video signal receiving module 11, configured to receive a plurality of video signals sent by the signal receiver;
the multi-channel analysis module 12 is configured to perform handshake analysis on a plurality of video signals simultaneously and respectively according to a plurality of preset decoding channels;
and a video signal sending module 13, configured to send the analyzed multiple video signals to a display end.
EXAMPLE III
The invention provides a terminal comprising a memory, a processor and a computer program stored in the memory, which when executed by the processor implements the steps of the multi-channel video decoding method as described in any one of the above embodiments.
Example four
The present invention provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the multi-channel video decoding method according to any one of the above embodiments.
EXAMPLE five
The present invention provides a computer program product comprising a computer program or instructions which, when processed and executed, implement the steps of the multi-channel video decoding method as described in any one of the above embodiments.
In summary, the multi-channel video decoding method, the multi-channel video decoding device and the related products provided by the invention help the signal receiver to decode through the video decoding card, so that the signal receiver is greatly reduced in voltage, the decoding pressure of the signal receiver is reduced, and the video analysis speed is increased; meanwhile, multi-channel decoding and display are realized by means of simultaneous handshake resolution of multiple channels, decoding efficiency is improved, a faster display effect is realized, blocking and collapse faults in the decoding process can be reduced, and dependence on performance of decoding equipment is less.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the above-mentioned apparatus may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus or apparatus/terminal device and method may be implemented in other ways. For example, the above-described apparatus or apparatus/terminal device embodiments are merely illustrative, and for example, the division of the modules or units is only one type of logical function division, and other division manners may be available in actual implementation, for example, multiple units or components may be combined or integrated into another apparatus, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The invention is not limited solely to that described in the specification and embodiments, and additional advantages and modifications will readily occur to those skilled in the art, so that the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.
Claims (10)
1. A multi-channel video decoding method is based on a video decoding card on a rebroadcasting terminal, and is characterized by comprising the following steps:
receiving a plurality of video signals transmitted by a signal receiver;
performing handshake analysis on the plurality of video signals simultaneously and respectively according to a plurality of preset decoding channels;
and sending the analyzed video signals to a display end.
2. The multi-channel video decoding method as claimed in claim 1, wherein the step of performing handshake parsing on the plurality of video signals according to a plurality of predetermined decoding channels simultaneously comprises:
decrypting the plurality of video signals.
3. The multi-channel video decoding method of claim 1, wherein the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously comprises:
performing multi-channel analysis on a plurality of different video videos simultaneously; the video comprises one or more of 1080P, 400 ten thousand pixel video, 300 ten thousand pixel video and 4K pixel video.
4. The multi-channel video decoding method as claimed in claim 3, further comprising the steps of:
and simultaneously decoding the video in the compressed state.
5. The multi-channel video decoding method of claim 1, wherein the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously comprises:
and simultaneously and respectively carrying out multi-channel analysis on videos of different signal channels sent by the television set top box.
6. The multi-channel video decoding method of claim 1, wherein the step of performing handshake parsing on the plurality of video signals according to a plurality of preset decoding channels simultaneously comprises:
and analyzing the multi-channel signal video sent by the video conference in real time.
7. The utility model provides a multichannel video decoding device, includes the video decoding card of plug-in connection on rebroadcasting terminal, its characterized in that includes:
the video signal receiving module is used for receiving a plurality of video signals sent by the signal receiver;
the multichannel analysis module is used for simultaneously and respectively performing handshake analysis on the plurality of video signals according to a plurality of preset decoding channels;
and the video signal sending module is used for sending the analyzed video signals to the display end.
8. A terminal, characterized in that the terminal comprises a memory, a processor and a computer program stored in the memory, which computer program, when executed by the processor, carries out the steps of the multi-pass video decoding method according to any one of claims 1-6.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, implements the steps of the multi-channel video decoding method according to any one of claims 1-6.
10. A computer program product comprising a computer program or instructions which, when processed and executed, implement the steps of the multi-pass video decoding method according to any one of claims 1 to 6.
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| CN116248816A (en) * | 2023-05-15 | 2023-06-09 | 广东视腾电子科技有限公司 | Matrix switcher for switching multipath signals based on optical fiber transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116248816A (en) * | 2023-05-15 | 2023-06-09 | 广东视腾电子科技有限公司 | Matrix switcher for switching multipath signals based on optical fiber transmission |
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