CN113365073A - Wireless transmitting and receiving method and device for ultra-high-definition video applying light compression algorithm - Google Patents
Wireless transmitting and receiving method and device for ultra-high-definition video applying light compression algorithm Download PDFInfo
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Abstract
The application discloses a method and equipment for wirelessly transmitting and receiving ultra-high definition video by applying a light compression algorithm, wherein the method for wirelessly transmitting comprises the following steps: the sending equipment acquires the ultra-high-definition video based on the input interface; the sending equipment encodes the ultrahigh-definition video based on a light compression encoding algorithm to obtain code stream data; the sending equipment encapsulates the code stream data based on a communication protocol to obtain a data packet; the sending equipment sends the data packet to a first 5G communication module of which the transmission rate is not lower than a first threshold value; the first 5G communication module is used for sending the data packet to receiving equipment. The transmitting device performs video lossless compression on the ultrahigh-definition video by adopting a light compression algorithm, and transmits the ultrahigh-definition video to the receiving device through the 5G wireless network, so that the ultrahigh-definition video can be displayed in real time with ultralow time delay and lossless image quality by the display device coupled with the receiving device.
Description
Technical Field
The present application relates to the field of image processing technologies, and in particular, to a method and an apparatus for wirelessly transmitting and receiving an ultra high definition video using a light compression algorithm.
Background
A large amount of redundant data exists in each frame of image data in the ultra-high definition video, so that an image data compression technology is developed, and algorithms with good compression effects in a transmission image compression algorithm are as follows: the h.264 compression algorithm can compress an image to a very small size, but has a high delay, and is not suitable for ultra-high-definition video transmission scenes in which streaming transmission is performed through 5G, such as omnidirectional VR, telemedicine, unmanned planes, and auto-pilot cars.
Disclosure of Invention
Based on the existing problems and the defects of the prior art, the application provides a wireless sending and receiving method and equipment of an ultra-high-definition video applying a light compression algorithm; the ultrahigh-definition video is subjected to lossless video compression by adopting a light compression algorithm and then is transmitted through a 5G network, so that the ultrahigh-definition video can be displayed in real time with ultralow time delay and lossless image quality by a display device coupled with a receiving device.
In a first aspect, the present application provides a wireless transmission method for ultra high definition video applying a light compression algorithm, where the wireless transmission method includes:
the sending equipment acquires the ultra-high-definition video based on the input interface;
the sending equipment encodes the ultrahigh-definition video based on a light compression encoding algorithm to obtain code stream data;
the sending equipment encapsulates the code stream data based on a communication protocol to obtain a data packet;
the sending equipment sends the data packet to a first 5G communication module of which the transmission rate is not lower than a first threshold value; the first 5G communication module is used for sending the data packet.
In a second aspect, the present application provides a wireless receiving method for ultra high definition video applying a light compression algorithm, where the wireless receiving method includes:
the receiving equipment receives the data packet through a second 5G communication module with the transmission rate not lower than a second threshold value;
the receiving equipment de-encapsulates the data packet based on a communication protocol to obtain code stream data;
and the receiving equipment decodes the code stream data based on a light compression decoding algorithm to obtain the ultra-high definition video.
In a third aspect, the present application provides a wireless transmission device for ultra high definition video applying a light compression algorithm, the transmission device comprising: a first memory and a first processor coupled to the first memory, the first memory being configured to store first application program instructions, the first processor being configured to invoke the first application program instructions to perform the wireless transmission method of ultra high definition video applying a light compression algorithm according to the first aspect.
In a fourth aspect, the present application provides a wireless receiving device for ultra high definition video applying a light compression algorithm, the receiving device comprising: a second memory and a second processor coupled to the second memory, wherein the second memory is used for storing a second application program instruction, and the second processor is configured to call the second application program instruction and execute the ultra high definition video wireless receiving method applying the light compression algorithm according to the second aspect.
The application provides a method and equipment for wirelessly transmitting and receiving ultra-high definition video by applying a light compression algorithm. The wireless transmission method comprises the following steps: the sending equipment acquires the ultra-high-definition video based on the input interface; the method comprises the steps that a sending device encodes an ultra-high-definition video based on a light compression encoding algorithm to obtain code stream data; the sending equipment encapsulates the code stream data based on a communication protocol to obtain a data packet; the sending equipment sends the data packet to a first 5G communication module of which the transmission rate is not lower than a first threshold value; the first 5G communication module is used for transmitting the data packet. Compared with the prior art, the beneficial effects of the embodiment of the application are that: after the ultrahigh-definition video is subjected to lossless video compression by adopting a light compression algorithm, the ultrahigh-definition video is transmitted through a 5G wireless network, and the ultrahigh-definition video can be displayed in real time with ultralow time delay and lossless image quality by a display device coupled with a receiving device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a wireless transmission method of ultra high definition video applying a light compression algorithm provided in the present application;
fig. 2 is a schematic diagram of a quantization process of wavelet transform coefficients provided in the present application;
FIG. 3 is a schematic diagram illustrating a process of zigzag scanning quantized data provided in the present application;
fig. 4 is a schematic flow chart of a wireless receiving method of ultra high definition video applying a light compression algorithm provided in the present application;
fig. 5 is a schematic structural diagram of a wireless transmission device for ultra high definition video applying a light compression algorithm provided in the present application;
fig. 6 is a schematic structural diagram of a wireless receiving device for ultra high definition video applying a light compression algorithm provided in the present application.
Detailed Description
The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are some, not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, it is a schematic flow chart of a wireless transmission method for ultra high definition video applying a light compression algorithm provided in the present application, as shown in fig. 1,
s101, the sending equipment acquires the ultra-high-definition video based on the input interface.
In the embodiment of the present application, acquiring, by a sending device, an ultra high definition video based on an input interface includes:
the sending equipment acquires the ultra-high definition video from video source equipment (such as a DVD, a set-top box, a camera and the like) based on an input interface; among other things, input interfaces may include, but are not limited to: HDMI (high Definition Multimedia interface) interface, Type-C interface, DP (DisplayPort) interface, USB (Universal Serial bus) interface, MIPI (Mobile Industry Processor interface) interface, DVI (digital visual interface) interface or VGA (Video Graphics Array) interface;
among others, ultra high definition video may include, but is not limited to: ultra high definition video in YUV format or ultra high definition video in RGB format; the high definition video data may further include, but is not limited to, the following features: the resolution may be: 1080P, 4K or 8K resolution; the frame rate may be 30FPS, 60FPS, 100FPS, or 120 FPS; high Dynamic Range hdr (high Dynamic Range imaging).
S102, the sending equipment encodes the ultra-high-definition video based on a light compression encoding algorithm to obtain code stream data.
In the embodiment of the present application, the sending device encodes the ultra-high-definition video based on the light compression encoding algorithm to obtain code stream data, which may include, but is not limited to, the following modes:
mode 1: the sending equipment encodes the ultra-high-definition video based on a wavelet transform coding algorithm through the first integrated circuit to obtain code stream data. In particular, the method comprises the following steps of,
step 1: the method comprises the steps that a sending device carries out wavelet transformation on an ultra-high-definition video through a first integrated circuit to obtain a wavelet transformation coefficient;
specifically, the sending device may perform, by the first integrated circuit, discrete wavelet transform of horizontal 1-5 layer decomposition and vertical 2-3 layer decomposition on pixel values of two lines of pixels of each frame of image in the ultra high definition video in the RGB format or the YUV format based on the following wavelets, to obtain the wavelet transform coefficient. Wherein, the wavelet may include but is not limited to: haar wavelets, daubechies (dbn) wavelets, Mexihat wavelets, Morlet wavelets, Meyer wavelets.
Step 2: the sending equipment quantizes the wavelet transform coefficients through the first integrated circuit to obtain quantized data;
the transmitting device quantizes the wavelet transform coefficients based on a target quantization step size by the first integrated circuit to obtain quantized data, wherein the transmitting device obtains the quantization step size according to a quantization formula.
The quantization process of the wavelet transform coefficients is briefly described below with reference to fig. 2.
As shown in fig. 2, the transmitting device quantizes the wavelet transform coefficients (e.g., data in the left table of fig. 2) by a quantization step (quantization step 28) to obtain quantized data (e.g., data in the right table of fig. 2).
And step 3: and the sending equipment performs entropy coding on the quantized data through the first integrated circuit to obtain code stream data.
Specifically, the sending device performs zigzag scanning on quantized data through the first integrated circuit to obtain a series of numbers, so that the quantized data is reduced from two dimensions to one dimension; then, the transmitting device entropy encodes the series of numbers through the first integrated circuit, and finally code stream data can be obtained.
In the embodiment of the present application, the first integrated circuit may include, but is not limited to: an FPGA chip, an ASIC chip, or an eASIC chip.
The process of zigzag scanning the quantized data is briefly described below with reference to fig. 3.
As shown in fig. 3, the sending device can scan the quantized data (e.g., the data in the left table in fig. 3) into a character string consisting of a series of numbers through the ZigZag scanning order of the zigbee.
It should be noted that when the character string is obtained after zigzag scanning: 9, 0, 0, 0, 0, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, the character string can be output after entropy encoding: 0000101110000000000000001101010, respectively; expressed in 16-ary as: 0X: B8000D + 010.
It should be noted that the data occupation space after encoding is: 3 bytes (the foremost 0 does not need to occupy space) +3 bits 3 x 8+3 bits 27 bits.
It should be noted that, in conjunction with fig. 2-3, the coding is preceded by a 4 × 4 pixel block, and if each pixel occupies a byte of space, i.e., 16Bytes × 8 × 128 bits, the size of the data occupied space after coding is 3 Bytes (the foremost 0 does not need to occupy space) +3 bits × 3 × 8+3 × 27 bits. Thus, the compression ratio may be: 27/128-0.210-20%.
It should be noted that, the sending device entropy-encodes the quantized data by the first integrated circuit to obtain the code stream data, which may include, but is not limited to, the following approaches:
route 1: the sending equipment encodes the quantized data through a first integrated circuit based on a run-length encoding algorithm to obtain code stream data;
route 2: the transmitting equipment encodes the quantized data through a first integrated circuit based on a Huffman coding algorithm to obtain code stream data;
route 3: the sending equipment encodes the quantized data through a constant block encoding algorithm of a first integrated circuit based on a binary image to obtain code stream data;
route 4: and the sending equipment encodes the quantized data through the first integrated circuit based on a quad-tree coding algorithm to obtain code stream data.
Route 5: and the sending equipment encodes the quantized data through a context-based adaptive variable length coding algorithm of the first integrated circuit to obtain code stream data.
Route 6: and the sending equipment encodes the quantized data through a context-based adaptive binary arithmetic algorithm of the first integrated circuit to obtain code stream data.
Specifically, the method for encoding the ultra-high-definition video by the sending device through the first integrated circuit based on the wavelet transform coding algorithm to obtain the code stream data may further include:
and the transmitting equipment encodes the ultra-high-definition video through the first integrated circuit based on a JPEG-XS encoding algorithm to obtain code stream data. In particular, the method comprises the following steps of,
step 1: the sending equipment performs upsampling on each frame of picture in the ultra-high-definition video through the first integrated circuit to obtain upsampled data.
Step 2: if each frame of picture in the ultra-high-definition video is in an RGB format, the sending equipment can convert the ultra-high-definition video in the RGB format into the ultra-high-definition video in the YUV format by adopting MCT conversion;
and step 3: the transmitting equipment performs discrete wavelet transform on the ultra-high-definition video in the YUV format to obtain a discrete wavelet transform coefficient;
and 4, step 4: after the discrete wavelet transform coefficients are subjected to pre-quantization processing by the sending equipment, dividing the pre-quantized discrete wavelet coefficients into a plurality of coding groups; the numerical value range of the discrete wavelet coefficient of each coding group is as follows:
wherein the content of the first and second substances,
g denotes the g-th code group, MgRepresenting the number of (non-zero) bit-planes per coding group, xiRepresenting the ith coefficient in the encoded group.
And 5: and (4) the sending equipment carries out entropy coding (such as Significance coding, MSB Position coding, absolute value coding or sign bit coding) on the quantized wavelet coefficient processed in the step (4) to obtain code stream data.
In particular, the method for encoding the ultra-high-definition video by the sending device based on the wavelet transform coding algorithm to obtain the code stream data may further include:
and the transmitting equipment encodes the ultra-high-definition video through the first integrated circuit based on a JPEG-LS encoding algorithm to obtain code stream data. In particular, the method comprises the following steps of,
step 1: the sending equipment acquires context parameters (such as gradient of a current pixel and nearby pixels) of the current pixel in each frame of picture in the ultra-high definition video through the first integrated circuit;
step 2: the sending device predicts according to the adjacent pixel value in the context template (the adjacent pixel of the current pixel) through the first integrated circuit to obtain the predicted value of the current pixel, and corrects the predicted value of the current pixel through the context parameter in the step 1;
and step 3: obtaining a prediction error by using the predicted value and the original pixel, and correcting and coding the prediction error;
and 4, step 4: updating relevant parameters of the context;
and 5: and performing Golomb coding on the prediction residual error to obtain code stream data.
Mode 2: the sending equipment encodes the ultra-high-definition video based on a short-time Fourier transform encoding algorithm through the first integrated circuit to obtain code stream data.
Mode 3: the sending equipment encodes the ultra-high-definition video based on a Fourier transform encoding algorithm through the first integrated circuit to obtain code stream data.
Mode 4: the sending device encodes the ultra-high-definition video based on a Discrete Cosine Transform (DCT) encoding algorithm through the first integrated circuit to obtain code stream data.
Specifically, the method for obtaining code stream data by a transmitting device encoding an ultra high definition video through a discrete cosine transform-based encoding algorithm of a first integrated circuit may include:
the transmitting equipment encodes the ultra-high-definition video through the first integrated circuit based on a VDC-M encoding algorithm to obtain code stream data. In particular, the method comprises the following steps of,
the VDC-M encoding algorithm may include, but is not limited to, the following encoding processes:
step 1: the sending equipment detects the flatness of the ultra-high definition video;
step 2: performing discrete cosine transform on the ultra-high definition video, and determining a prediction mode;
and step 3: and entropy coding the transformation coefficient to obtain code stream data.
S103, the sending equipment encapsulates the code stream data based on a communication protocol to obtain a data packet.
In this embodiment of the present application, the sending device encapsulates the code stream data based on the communication protocol to obtain the data packet, which may include but is not limited to the following manners:
mode 1: the sending equipment encapsulates the code stream data based on a User Datagram Protocol (UDP) communication Protocol through a first integrated circuit to obtain a UDP data packet; in particular, the method comprises the following steps of,
the sending equipment respectively adds a UDP data packet head and a UDP data packet tail to the front and back positions of the code stream data based on the UDP protocol through the first integrated circuit to obtain the UDP data packet comprising the code stream data, the UDP protocol head and the UDP protocol tail. The UDP header or the UDP trailer may include control information such as a destination address, a source address, a port number, and a flag bit.
It should be noted that the sending device may further encapsulate, by using the first integrated circuit, the code stream data and the acquired control instruction based on the UDP protocol, to obtain a UDP data packet.
It should be noted that the sending device may obtain the control instruction from the control device through an IR receiving head, an RS232 interface, a USB interface, or a UART interface. Among them, the USB interface may include but is not limited to: USB3.0, USB2.0, USB3.1 or Type-C interface.
Mode 2: the sending equipment encapsulates the code stream data based on a TCP (Transmission control protocol) communication protocol through a first integrated circuit to obtain a TCP data packet;
it should be noted that the sending device may further encapsulate, by using the first integrated circuit, the code stream data and the acquired control instruction based on the TCP protocol, to obtain a TCP data packet.
Mode 3: and the sending equipment encapsulates the code stream data based on the user-defined communication protocol through the first integrated circuit to obtain a user-defined data packet.
Wherein, the self-defining protocol comprises: the simple protocol is designed to keep the requirements of data coding in the sending equipment and data decoding in the receiving equipment synchronous.
It should be noted that the sending device may further encapsulate, through the first integrated circuit, the code stream data and the acquired control instruction based on the custom protocol, to obtain a custom data packet.
S104, the sending equipment sends the data packet to a first 5G communication module with the transmission rate not lower than a first threshold value.
In this embodiment, the sending device sending the data packet to the first 5G communication module whose transmission rate is not lower than the first threshold may include:
the sending equipment sends the data packet to the first 5G communication module through the communication interface of the first 5G communication module; the communication interface of the first 5G communication module may include, but is not limited to: a PCIE interface, a USB3.0 interface, etc.; preferably, the first threshold is 100Mbps, 300Mbps, 500Mbps, or 1 Gbps.
After the sending device sends the data packet to the first 5G communication module with the transmission rate not lower than the first threshold, the following processing manner may also be executed:
treatment method 1: the sending equipment sends the data packet to the receiving equipment through the first 5G communication module;
treatment method 2: the sending equipment sends the data packet to the base station through the first 5G communication module, and the base station is used for forwarding the data packet to the receiving equipment.
It should be noted that the first 5G communication module may be a 5G communication module integrated with a plurality of antennas, in other words, the first 5G communication module may be a 5G communication module that encapsulates a plurality of antennas inside by using an aip (antenna in package) technology, and may improve the transmission rate of the protocol stream data and reduce the transmission delay by using a large-scale Multiple Input Multiple Output (MIMO) technology.
In addition, the first 5G communication module optimizes the structure design of the radio frame, that is, designs the data format of the protocol data stream input to the first 5G communication module, that is, reduces the Transmission Time Interval (TTI).
In addition, the first 5G communication module also adopts a channel coding technology in a convolutional code coding form.
In summary, the Aip technique is used to perform multi-antenna layout, optimize the frame format of the data, and the channel coding technique using the convolutional code coding format is used to improve the transmission rate of the multimedia data in the embodiment of the present application.
When the reception apparatus includes: the first receiving device and the second receiving device,
the sending device sends the data packet to the receiving device through the first 5G communication module, which may include the following processes:
the sending device sends the data packets to the first receiving device and the second receiving device through the first 5G communication module respectively.
When the base station includes: when the first base station and the second base station are in use,
the sending device sends the data packet to the base station through the first 5G communication module, which may include, but is not limited to, the following steps:
the sending device can send the data packet to the first base station through the first 5G communication module, forward the data packet to the second base station through the first base station, and forward the data packet to the receiving device through the second base station.
It should be noted that the sending device may further receive, through the first 5G communication module, the preset data packet sent by the receiving device, and after decapsulating the preset data packet, obtain a preset control instruction, where the preset control instruction is used to control a video source device connected to the sending device (for example, the video source device is turned on or turned off). The sending equipment can send the preset control instruction to video source equipment coupled with the sending equipment through the infrared transmitting head.
It should be noted that fig. 2-3 are only used for explaining the embodiments of the present application and should not limit the present application.
The embodiment of the application provides a wireless transmission method of an ultra-high-definition video by applying a light compression algorithm, wherein after the ultra-high-definition video is subjected to video lossless compression by a transmission device by adopting the light compression algorithm, the ultra-high-definition video is transmitted to a receiving device through a 5G wireless network, and the ultra-low-delay and lossless real-time image quality display of the ultra-high-definition video by a display device coupled with the receiving device can be realized.
Referring to fig. 4, it is a schematic flowchart of a wireless receiving method for ultra high definition video applying a light compression algorithm provided in the present application, and as shown in fig. 4, the wireless receiving method may include at least the following steps:
s401, the receiving device receives the data packet through a second 5G communication module with the transmission rate not lower than a second threshold value.
In this embodiment of the application, the receiving device receives the data packet through the second 5G communication module whose transmission rate is not lower than the second threshold, which may include but is not limited to the following manners:
mode 1: the receiving equipment receives the data packet sent by the sending equipment through a second 5G communication module with the transmission rate not lower than a second threshold value; preferably, the second threshold is 100Mbps, 300Mbps, 500Mbps, or 1 Gbps. .
It should be noted that the second threshold value and the first threshold value in the present application may be equal in magnitude.
Mode 2: and the receiving equipment receives the data packet forwarded by the base station through the second 5G communication module with the transmission rate not lower than the second threshold value.
The second 5G communication module may be a 5G communication module integrating several antennas.
It should be noted that, the second 5G communication module adopts a design mode of high-reliability and low-delay communication.
Specifically, the receiving device may perform decapsulation and decompression operations on a data packet received by the multiple antennas encapsulated based on the Aip technique by using a channel decoding technique in the form of a convolutional code, and then may obtain ultra high definition videos corresponding to the data packet, respectively, and the display device connected to the receiving device may display the specific multimedia data without delay.
It should be noted that, when the transmission apparatus includes: when the first sending device and the second sending device are used,
the receiving device receives the data packet through the second 5G communication module with the transmission rate not lower than the second threshold, and may include the following steps:
and the receiving equipment receives the data packet sent by the first sending equipment and the data packet sent by the second sending equipment through a second 5G communication module with the transmission rate not lower than a second threshold value.
S402, the receiving device de-encapsulates the data packet based on the communication protocol to obtain code stream data.
In the embodiment of the application, the receiving device may output the data packet obtained from the second 5G communication module through the communication interface of the second 5G communication module to the second integrated circuit; the second integrated circuit is used for carrying out processing operations such as decapsulation and decoding on the obtained data packet; the communication interface of the second 5G communication module may include, but is not limited to: a PCIE interface, a USB3.0 interface, etc. The second integrated circuit in the embodiment of the present application may include, but is not limited to: an FPGA chip, an ASIC chip, or an eASIC chip.
It should be noted that, the decapsulating, by the receiving device, the data packet based on the communication protocol to obtain the code stream data may include, but is not limited to, the following manners:
mode 1: the receiving equipment decapsulates the UDP data packet based on the UDP communication protocol through the second integrated circuit to obtain code stream data; in particular, the method comprises the following steps of,
the receiving device can remove the UDP data packet head and the UDP data packet tail from the UDP data packet respectively through the second integrated circuit based on the UDP protocol to obtain the code stream data.
It should be noted that, the receiving device decapsulates the UDP data packet based on the UDP protocol by using the second integrated circuit, and may obtain a control instruction in addition to the code stream data, where the control instruction is used to control a display device connected to the receiving device.
Mode 2: the receiving equipment decapsulates the TCP data packet based on a TCP communication protocol through a second integrated circuit to obtain code stream data;
it should be noted that, the receiving device may decapsulate the TCP data packet based on the TCP protocol by using the second integrated circuit to obtain the code stream data, and may further obtain a control instruction, where the control instruction is used to control a display device connected to the receiving device.
Mode 3: and the receiving equipment decapsulates the custom data packet based on the custom communication protocol through the second integrated circuit to obtain code stream data.
It should be noted that the receiving device decapsulates the custom data packet based on the custom communication protocol through the second integrated circuit to obtain the code stream data, and may also obtain a control instruction, where the control instruction is used to control a display device connected to the receiving device.
And S403, decoding the code stream data by the receiving equipment based on a light compression decoding algorithm to obtain the ultra-high definition video.
In the embodiment of the present application, the receiving device decodes the code stream data based on the light compression decoding algorithm to obtain the ultra high definition video, which may include but is not limited to the following modes:
mode 1: the receiving equipment decodes the code stream data based on a decoding algorithm of wavelet inverse transformation through a second integrated circuit to obtain an ultra-high definition video; in particular, the method comprises the following steps of,
the receiving device can perform entropy decoding (such as variable length entropy decoding and binary arithmetic decoding) on the code stream data through the second integrated circuit, then perform inverse quantization operation on the entropy-decoded data to recover wavelet transform coefficients, perform inverse wavelet transform on the recovered wavelet transform coefficients, and further recover the ultra-high definition video. More specifically, the present invention is to provide a novel,
the receiving equipment decodes the code stream data through a second integrated circuit based on a JPEG-XS decoding algorithm to obtain an ultra-high definition video; wherein, the ultra-high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format. Alternatively, the first and second electrodes may be,
and the receiving equipment decodes the code stream data through the second integrated circuit based on a JPEG-LS decoding algorithm to obtain the ultra-high definition video.
Mode 2: the receiving equipment decodes the code stream data based on a decoding algorithm of short-time inverse Fourier transform through a second integrated circuit to obtain an ultra-high definition video; in particular, the method comprises the following steps of,
the receiving device can perform entropy decoding on the code stream data through the second integrated circuit, then perform inverse quantization operation on the entropy-decoded data to recover the short-time Fourier transform coefficient, perform short-time inverse Fourier transform on the recovered short-time inverse Fourier transform coefficient, and further recover the ultra-high definition video.
Mode 3: and the receiving equipment decodes the code stream data based on a decoding algorithm of inverse Fourier transform through the second integrated circuit to obtain the ultra-high definition video.
Mode 4: and the receiving equipment decodes the code stream data based on a decoding algorithm of inverse discrete cosine transform through the second integrated circuit to obtain the ultra-high definition video. More specifically, the present invention is to provide a novel,
and the receiving equipment decodes the ultra-high-definition video based on a VDC-M decoding algorithm through the second integrated circuit to obtain the ultra-high-definition video.
It should be noted that the receiving device may further obtain a preset control instruction from the control device through an IR receiving head, an RS232 interface, a USB interface, or a UART interface integrated inside, encapsulate the preset control instruction into a preset data packet, and send the preset data packet to the sending device or the base station through a second 5G communication module in the receiving device, where the preset control instruction may be used to control a video source device connected to the sending device (e.g., start or shut down the video source device).
The application provides a wireless transmission device of ultra-high-definition video applying a light compression algorithm, which can be used for realizing the wireless transmission method described in the embodiment of fig. 1. The wireless transmitting device shown in fig. 5 can be used to implement the description in the embodiment of fig. 1.
As shown in fig. 5, wireless transmitting device 50 may include, but is not limited to: a first memory 501, a first processor 502 coupled to the first memory 501, and a first 5G communication module 503 coupled to the first processor 502.
A first memory 501, operable to: a first application program instruction;
a first processor 502 operable to: the first application program instruction stored in the first memory 501 is called to implement the wireless transmission method of the ultra high definition video applying the light compression algorithm described in fig. 1.
The first 5G communication module 503 may be configured to send a data packet in the ultra-high definition video wireless sending method applying the light compression algorithm, which is described in fig. 1.
A first processor 502 operable to:
acquiring an ultra-high-definition video based on an input interface;
coding the ultra-high-definition video based on a light compression coding algorithm to obtain code stream data;
packaging the code stream data based on a communication protocol to obtain a data packet;
the data packet is sent to the first 5G communication module 503 whose transmission rate is not lower than the first threshold.
The first processor 502 may be specifically configured to:
acquiring the ultra-high-definition video from video source equipment based on an input interface; the input interface includes: an HDMI interface, a Type-C interface, a DP interface, a USB interface, an MIPI interface, a DVI interface or a VGA interface;
the first processor 502 may be specifically configured to:
mode 1: and coding the ultra-high-definition video through a first integrated circuit based on a wavelet transform coding algorithm to obtain code stream data. The first integrated circuit in the embodiments of the present application may include, but is not limited to: an FPGA chip, an ASIC chip, or an eASIC chip. In particular, the method comprises the following steps of,
performing wavelet transformation on the ultra-high definition video through a first integrated circuit to obtain a wavelet transformation coefficient;
quantizing the wavelet transform coefficients through a first integrated circuit to obtain quantized data;
and entropy coding the quantized data through the first integrated circuit to obtain code stream data.
More specifically, the present invention is to provide a novel,
coding the ultra-high-definition video through a first integrated circuit based on a JPEG-XS coding algorithm to obtain code stream data; the ultra-high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format.
And coding the ultra-high-definition video through the first integrated circuit based on a JPEG-LS coding algorithm to obtain code stream data.
Mode 2: and coding the ultra-high-definition video through a first integrated circuit based on a short-time Fourier transform coding algorithm to obtain code stream data.
Mode 3: and coding the ultra-high-definition video through a first integrated circuit based on a coding algorithm of Fourier transform to obtain code stream data.
Mode 4: and coding the ultra-high-definition video through a first integrated circuit based on a discrete cosine transform coding algorithm to obtain code stream data.
And coding the ultra-high definition video based on a VDC-M coding algorithm to obtain code stream data.
The first processor 502 may be further specifically configured to:
packaging the code stream data based on a UDP communication protocol through a first integrated circuit to obtain a UDP data packet;
packaging the code stream data based on a TCP communication protocol through a first integrated circuit to obtain a TCP data packet; alternatively, the first and second electrodes may be,
and packaging the code stream data through the first integrated circuit based on a user-defined communication protocol to obtain a user-defined data packet.
A first 5G communication module 503, operable to:
sending the data packet to a receiving device; or, the data packet is sent to the base station, and the base station is configured to forward the data packet to the receiving device.
A first 5G communication module 503, operable to:
when the reception apparatus includes: the first receiving device and the second receiving device,
and respectively transmitting the data packet to the first receiving device and the second receiving device.
A first 5G communication module 503, operable to:
when the base station includes: when the first base station and the second base station are in use,
and sending the data packet to a first base station, forwarding the data packet to a second base station through the first base station, and forwarding the data packet to receiving equipment through the second base station.
The first 5G communication module 503 is further configured to receive a preset data packet sent by the receiving device; the first processor 502 may be further configured to decapsulate the preset data packet to obtain a preset control instruction; the transmission device 50 includes: the first memory 501, the first processor 502, and the first 5G communication module 503 may further include: and the infrared emission head is used for sending the preset control instruction to the video source equipment coupled with the sending equipment 50 so as to control the video source equipment. It should be understood that the wireless transmitting device 50 is only one example provided by the embodiments of the present application, and the wireless transmitting device 50 may have more or less components than those shown, may combine two or more components, or may have a different configuration implementation of the components.
It is understood that, regarding the specific implementation of the functional components included in the wireless transmission device 50 of fig. 5, reference may be made to the embodiment of fig. 1, and details are not repeated here.
The application provides a wireless receiving device of ultra-high-definition video applying a light compression algorithm, which can be used for realizing the wireless receiving method described in the embodiment of fig. 4. The wireless receiving device shown in fig. 6 can be used to implement the description in the embodiment of fig. 4.
As shown in fig. 6, wireless receiving device 60 may include, but is not limited to: a second memory 601, a second processor 602 coupled with the second memory 601, and a second 5G communication module 603 coupled with the second processor 602.
A second memory 601, operable to: a second application program instruction;
a second processor 602 operable to: and calling a second application program instruction stored in the second memory 601 to implement the wireless receiving method for the ultra-high definition video applying the light compression algorithm described in fig. 4.
The second 5G communication module 603 may be configured to receive a data packet in the wireless receiving method for the ultra-high definition video applying the light compression algorithm described in fig. 4.
The second 5G communication module 603 may be specifically configured to:
receiving a data packet transmitted by a transmitting device; alternatively, the first and second electrodes may be,
a data packet forwarded by a base station is received.
The second 5G communication module 603 may be specifically configured to:
when the transmission apparatus includes: when the first sending device and the second sending device are used,
and receiving the data packet sent by the first sending equipment and the data packet sent by the second sending equipment.
The second processor 602 may be specifically configured to:
decapsulating the UDP data packet through a second integrated circuit based on a UDP communication protocol to obtain code stream data;
decapsulating the TCP data packet through a second integrated circuit based on a TCP communication protocol to obtain code stream data;
and de-encapsulating the custom data packet through a second integrated circuit based on a custom communication protocol to obtain code stream data.
The second processor 602 may be specifically configured to:
mode 1: decoding the code stream data through a decoding algorithm of a second integrated circuit based on inverse wavelet transform to obtain an ultra-high-definition video; in particular, the method comprises the following steps of,
decoding the code stream data through a second integrated circuit based on a JPEG-XS decoding algorithm to obtain an ultra-high definition video; wherein, the ultra-high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format. Alternatively, the first and second electrodes may be,
and decoding the code stream data through a second integrated circuit based on a JPEG-LS decoding algorithm to obtain the ultra-high definition video.
Mode 2: decoding the code stream data through a second integrated circuit based on a decoding algorithm of short-time inverse Fourier transform to obtain an ultra-high definition video; alternatively, the first and second electrodes may be,
mode 3: decoding the code stream data through a decoding algorithm of a second integrated circuit based on inverse Fourier transform to obtain an ultra-high definition video; wherein, the ultra-high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format.
Mode 4: and decoding the code stream data through a decoding algorithm of a second integrated circuit based on inverse discrete cosine transform to obtain the ultra-high definition video. More specifically, the present invention is to provide a novel,
and decoding the ultra-high-definition video based on a VDC-M decoding algorithm to obtain the ultra-high-definition video.
It should be noted that the receiving device 60 may also obtain the preset control instruction from the control device through an internal integrated IR receiving head, an RS232 interface, a USB interface or a UART interface.
The second processor 602 is further configured to: packaging the preset control instruction into a preset data packet; the second 5G communication module 603 may be further configured to: and sending the preset data packet to a sending device or a switch.
It should be understood that wireless receiving device 60 is only one example provided by embodiments of the present application, that wireless receiving device 60 may have more or fewer components than shown, may combine two or more components, or may have a different configuration implementation of components.
It is understood that, regarding the specific implementation of the functional components included in the wireless receiving device 60 of fig. 6, reference may be made to the embodiment of fig. 4, which is not described herein again.
Those of ordinary skill in the art will appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate the interchangeability of hardware and software. 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 application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices or modules may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device or method may be implemented in other ways. For example, the components and steps of the various examples are described. 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 application.
The above-described embodiments of the apparatus and device are merely illustrative, and for example, the division of the modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules 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 an indirect coupling or communication connection through some interfaces, devices, apparatuses or modules, and may also be an electrical, mechanical or other form of connection.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of the embodiments of the present application.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (20)
1. A wireless transmission method of ultra high definition video applying a light compression algorithm is characterized by comprising the following steps:
the sending equipment acquires the ultra-high-definition video based on the input interface;
the sending equipment encodes the ultrahigh-definition video based on a light compression encoding algorithm to obtain code stream data;
the sending equipment encapsulates the code stream data based on a communication protocol to obtain a data packet;
the sending equipment sends the data packet to a first 5G communication module of which the transmission rate is not lower than a first threshold value; the first 5G communication module is used for sending the data packet.
2. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 1,
the method for acquiring the ultra-high-definition video by the sending equipment based on the input interface comprises the following steps:
the sending equipment acquires the ultra-high-definition video from video source equipment based on an input interface; the input interface includes: an HDMI interface, a Type-C interface, a DP interface, a USB interface, an MIPI interface, a DVI interface or a VGA interface;
wherein the ultra high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format.
3. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 1,
the method for encoding the ultra-high-definition video by the sending device based on the light compression encoding algorithm to obtain code stream data comprises the following steps:
the sending equipment encodes the ultra-high-definition video based on a wavelet transform coding algorithm through a first integrated circuit to obtain code stream data; alternatively, the first and second electrodes may be,
the sending equipment encodes the ultra-high-definition video based on a short-time Fourier transform encoding algorithm through a first integrated circuit to obtain code stream data; alternatively, the first and second electrodes may be,
the sending equipment encodes the ultrahigh-definition video based on a discrete cosine transform coding algorithm through a first integrated circuit to obtain code stream data;
wherein the first integrated circuit comprises: an FPGA chip or an ASIC chip; the ultra-high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format.
4. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 3,
the method comprises the following steps that the sending equipment encodes the ultra-high-definition video through a first integrated circuit based on a wavelet transform coding algorithm to obtain code stream data, and comprises the following steps:
the transmitting equipment encodes the ultrahigh-definition video through the first integrated circuit based on a JPEG-XS encoding algorithm to obtain code stream data; alternatively, the first and second electrodes may be,
the transmitting equipment encodes the ultrahigh-definition video through a first integrated circuit based on a JPEG-LS (joint photographic experts group-LS) encoding algorithm to obtain code stream data; alternatively, the first and second electrodes may be,
the method for obtaining the code stream data by the sending device includes the steps of:
and the transmitting equipment encodes the ultra-high-definition video through the first integrated circuit based on a VDC-M encoding algorithm to obtain the code stream data.
5. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 3,
the method comprises the following steps that the sending equipment encodes the ultra-high-definition video through a first integrated circuit based on a wavelet transform coding algorithm to obtain code stream data, and comprises the following steps:
the sending equipment performs wavelet transformation on the ultrahigh-definition video through the first integrated circuit to obtain a wavelet transformation coefficient;
the sending equipment quantizes the wavelet transform coefficients through the first integrated circuit to obtain quantized data;
and the sending equipment carries out entropy coding on the quantized data through the first integrated circuit to obtain code stream data.
6. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 3,
the method includes the steps that the sending device codes the ultra-high-definition video through a first integrated circuit based on a short-time Fourier transform coding algorithm to obtain code stream data, and the method includes the following steps:
the sending equipment carries out short-time Fourier transform on the ultra-high-definition video through a first integrated circuit to obtain a short-time discrete Fourier coefficient;
the sending equipment quantizes the short-time discrete Fourier coefficients through the first integrated circuit to obtain quantized data;
and the sending equipment carries out entropy coding on the quantized data through the first integrated circuit to obtain code stream data.
7. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 5,
the sending device performs wavelet transform on the ultra-high definition video through a first integrated circuit to obtain a wavelet transform coefficient, and the wavelet transform coefficient comprises:
and the sending equipment performs wavelet transformation of horizontal 1-5 layer decomposition and vertical 2-3 layer decomposition on the ultra-high definition video through the first integrated circuit to obtain a wavelet transformation coefficient.
8. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 5,
the sending device entropy-encodes the quantized data through a first integrated circuit to obtain code stream data, and the method comprises the following steps:
the sending equipment encodes the quantized data through the first integrated circuit based on a run length encoding algorithm to obtain the code stream data; alternatively, the first and second electrodes may be,
the sending equipment encodes the quantized data through the first integrated circuit based on a Huffman coding algorithm to obtain the code stream data; alternatively, the first and second electrodes may be,
the sending equipment encodes the quantized data through the first integrated circuit based on a constant block encoding algorithm of a binary image to obtain code stream data; alternatively, the first and second electrodes may be,
and the sending equipment encodes the quantized data through the first integrated circuit based on a quadtree coding algorithm to obtain the code stream data.
9. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 1,
the method for encapsulating the code stream data by the sending equipment based on a communication protocol to obtain a data packet comprises the following steps:
the sending equipment encapsulates the code stream data based on a UDP communication protocol through the first integrated circuit to obtain a UDP data packet; alternatively, the first and second electrodes may be,
the sending equipment encapsulates the code stream data based on a TCP communication protocol through the first integrated circuit to obtain a TCP data packet; alternatively, the first and second electrodes may be,
and the sending equipment encapsulates the code stream data based on a user-defined communication protocol through the first integrated circuit to obtain a user-defined data packet.
10. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 1,
after the sending device sends the data packet to the first 5G communication module with a transmission rate not lower than the first threshold, the sending device further includes:
the sending equipment sends the data packet to receiving equipment through the first 5G communication module;
alternatively, the first and second electrodes may be,
and the sending equipment sends the data packet to a base station through the first 5G communication module, and the base station is used for forwarding the data packet to the receiving equipment.
11. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 10,
the receiving apparatus includes: a first receiving device and a second receiving device;
the sending device sends the data packet to a receiving device through the first 5G communication module, and the sending device includes:
and the sending device sends the data packet to the first receiving device and the second receiving device through the first 5G communication module respectively.
12. The ultra high definition video wireless transmission method applying a light compression algorithm according to claim 10,
the base station includes: a first base station and a second base station;
the sending device sends the data packet to a base station through the first 5G communication module, and includes:
the sending device sends the data packet to the first base station through the first 5G communication module, forwards the data packet to the second base station through the first base station, and forwards the data packet to the receiving device through the second base station.
13. A wireless receiving method of ultra-high-definition video applying a light compression algorithm is characterized by comprising the following steps:
the receiving equipment receives the data packet through a second 5G communication module with the transmission rate not lower than a second threshold value;
the receiving equipment de-encapsulates the data packet based on a communication protocol to obtain code stream data;
and the receiving equipment decodes the code stream data based on a light compression decoding algorithm to obtain the ultra-high definition video.
14. The wireless receiving method of ultra high definition video applying a light compression algorithm according to claim 13,
the receiving device receives the data packet through a second 5G communication module with the transmission rate not lower than a second threshold value, and the method comprises the following steps:
the receiving equipment receives the data packet sent by the sending equipment through a second 5G communication module with the transmission rate not lower than a second threshold value;
alternatively, the first and second electrodes may be,
and the receiving equipment receives the data packet forwarded by the base station through a second 5G communication module of which the transmission rate is not lower than a second threshold value.
15. The wireless receiving method of ultra high definition video applying a light compression algorithm according to claim 14,
the transmission apparatus includes: a first transmitting device, a second transmitting device;
the receiving device receives the data packet through a second 5G communication module with the transmission rate not lower than a second threshold value, and the method comprises the following steps:
and the receiving equipment receives the data packet sent by the first sending equipment and the data packet sent by the second sending equipment through a second 5G communication module of which the transmission rate is not lower than a second threshold value.
16. The wireless receiving method of ultra high definition video applying a light compression algorithm according to claim 13,
the receiving device decapsulates the data packet based on a communication protocol to obtain code stream data, including:
the receiving equipment de-encapsulates the UDP data packet based on the UDP communication protocol through the second integrated circuit to obtain code stream data;
alternatively, the first and second electrodes may be,
the receiving equipment decapsulates the TCP data packet based on a TCP communication protocol through the second integrated circuit to obtain the code stream data;
alternatively, the first and second electrodes may be,
and the receiving equipment decapsulates the custom data packet based on a custom communication protocol through the second integrated circuit to obtain the code stream data.
17. The wireless receiving method of ultra high definition video applying a light compression algorithm according to claim 13,
the receiving device decodes the code stream data based on a light compression decoding algorithm to obtain the ultra-high definition video, and the method comprises the following steps:
the receiving equipment decodes the code stream data based on a decoding algorithm of wavelet inverse transformation through a second integrated circuit to obtain the ultra-high definition video; alternatively, the first and second electrodes may be,
the receiving equipment decodes the code stream data through the second integrated circuit based on a decoding algorithm of short-time inverse Fourier transform to obtain the ultra-high-definition video; alternatively, the first and second electrodes may be,
the receiving equipment decodes the code stream data based on a decoding algorithm of inverse discrete cosine transform through the second integrated circuit to obtain the ultra-high definition video;
wherein the ultra high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format.
18. The ultra high definition video wireless receiving method applying a light compression algorithm as recited in claim 17,
the receiving device decodes the code stream data based on a decoding algorithm of wavelet inverse transformation through a second integrated circuit to obtain the ultra-high definition video, and the method comprises the following steps:
the receiving equipment decodes the code stream data based on a JPEG-XS decoding algorithm through the second integrated circuit to obtain an ultra-high definition video; alternatively, the first and second electrodes may be,
the receiving equipment decodes the code stream data based on a JPEG-LS decoding algorithm through the second integrated circuit to obtain the ultra-high definition video; alternatively, the first and second electrodes may be,
the receiving device decodes the code stream data based on a decoding algorithm of inverse discrete cosine transform through the second integrated circuit to obtain the ultra-high definition video, and the method comprises the following steps:
the receiving equipment decodes the code stream data based on a VDC-M decoding algorithm through the second integrated circuit to obtain the ultra-high definition video;
wherein the ultra high definition video comprises: ultra high definition video in YUV format, or ultra high definition video in RGB format.
19. A wireless transmission device for ultra high definition video applying a light compression algorithm, comprising:
a first memory for storing first application program instructions and a first processor coupled to the first memory, the first processor configured to invoke the first application program instructions to perform the wireless transmission method of ultra high definition video applying a light compression algorithm of claims 1-12.
20. A wireless receiving apparatus for ultra high definition video applying a light compression algorithm, comprising:
a second memory for storing second application program instructions and a second processor coupled to the second memory, the second processor being configured to invoke the second application program instructions to perform the wireless receiving method of ultra high definition video applying the light compression algorithm of claims 13-18.
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| CN111277588A (en) * | 2020-01-19 | 2020-06-12 | 深圳市朗强科技有限公司 | Data sending and receiving method, device and system |
| CN112565823A (en) * | 2020-12-09 | 2021-03-26 | 深圳市朗强科技有限公司 | Method and equipment for sending and receiving high-definition video data |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113742003A (en) * | 2021-09-15 | 2021-12-03 | 深圳市朗强科技有限公司 | Program code execution method and device based on FPGA chip |
| CN113742003B (en) * | 2021-09-15 | 2023-08-22 | 深圳市朗强科技有限公司 | Program code execution method and device based on FPGA chip |
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