CN212367441U

CN212367441U - Single-path H.265 codec

Info

Publication number: CN212367441U
Application number: CN202021010201.7U
Authority: CN
Inventors: 闫志宏; 唐庆光; 张维超
Original assignee: Guangdong Jeki Technology Development Co ltd
Current assignee: Guangdong Jeki Technology Development Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-01-15
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a single pass H.265 codec, include: the main control panel is provided with an MCU module, an audio input/output module, a video input/output module, an H265 coding module, a power supply module, a peripheral interface module, a network interface module, a serial interface module, a storage module and an alarm module; the audio input/output module and the serial port interface module are connected with the H265 coding module; the video input and output module is connected with the MCU module, the H265 coding module is connected with the MCU module through the network interface module, and the MCU module is connected with the peripheral interface module; the MCU module is connected with the power supply module, the storage module and the alarm module. The utility model provides an encoder can realize realizing the transmission processing of higher clear audio and video content under current limited network bandwidth, can realize 1080p full high-definition video transmission under 1.5 Mbps's bandwidth. Providing richer multimedia operation capability based on H.265. Has the value of wide popularization and application.

Description

Single-path H.265 codec

Technical Field

The utility model relates to a video encoder technical field, concretely relates to one way H.265 codec.

Background

Video coding has evolved into the era of high definition, with the video coding standard h.265 being developed for high definition on demand. In the rapid development of the digital video application industry chain, in the face of the trend that video applications gradually develop towards high resolution, high frame rate and high compression rate, the limitation of the h.264 video compression standard which is currently and generally adopted is increasingly shown. The h.264 standard is a new video coding standard established after h.264 by ITU-T VCEG.

H.264 may support the transmission of 720P30 frames/second of images at 1M bandwidth; h.264HIGH PROFILE supports the transmission of 720P30 frames/second images at a bandwidth of 512K. As video formats appearing in our lives are larger and larger (for example, the display versions of 1080P and even 4K are basically available now, and 4K film sources are more and more in the future), the h.264 standard cannot meet the existing compression and storage, so that a video codec with high compression ratio and storage is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, provide a one way H.265 codec.

The utility model provides a technical scheme that its technical problem adopted is:

a one-way h.265 codec comprising:

the main control panel is provided with an MCU module, an audio input/output module, a video input/output module, an H265 coding module, a power supply module, a peripheral interface module, a network interface module, a serial interface module, a storage module and an alarm module;

the audio input/output module and the serial port interface module are connected with the H265 coding module; the video input and output module is connected with the MCU module, the H265 coding module is connected with the MCU module through the network interface module, and the MCU module is connected with the peripheral interface module; the MCU module is connected with the power supply module, the storage module and the alarm module.

As a further technical solution of the utility model is: the peripheral interface module includes: HDMI, DVI, SDI, CVBS output interface, IO control interface, hard disk mount interface and USB interface.

As a further technical solution of the utility model is: the output voltage of the power supply module is 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V and 1.1V.

As a further technical solution of the utility model is: the MCU module adopts a control chip with the model number of AS0B 821-S78B-7H.

As a further technical solution of the utility model is: the network interface module adopts a network interface chip with RTL8211E model.

As a further technical solution of the utility model is: the storage module adopts a storage with model number AT24C128C-SS 9M.

As a further technical solution of the utility model is: the audio input and output module adopts an audio chip of SGM8903 type.

As a further technical solution of the utility model is: the serial port interface module comprises an RS232 interface and an RS-485 serial port, the RS232 serial port adopts a chip of MAX3243EIPWR model, and the RS485 serial port module adopts a chip of SN65HVD1781DR model.

The utility model has the advantages that:

1. the utility model provides an encoder can realize realizing the transmission processing of higher clear audio and video content under the current limited network bandwidth, can realize 1080p full high-definition video transmission under the bandwidth of 1.5 Mbps;

2. providing richer H.265-based multimedia operation capabilities;

3. the utility model discloses integrated H.264, H.265's full encoder product has the value of popularization and application on a large scale. The method is suitable for transmission of videos among nodes, encoding, decoding, conversion, control, transmission and the like of videos of a multimedia conference or a control center.

Drawings

Fig. 1 is a structural diagram of a single-channel h.265 codec according to the present invention;

fig. 2 is a structural diagram of a single-channel h.265 codec main control board according to the present invention;

FIG. 3 is a circuit diagram of the MCU module provided by the present invention;

fig. 4 is a circuit diagram of an audio output module according to the present invention;

fig. 5 is a circuit diagram of the serial interface module provided by the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

H.265 is a new video coding standard established after h.264 by ITU-T VCEG, a considerable improvement over the previous h.264 standard. The new technology uses advanced technology to improve the relationship among code stream, coding quality, time delay and algorithm complexity, and achieves optimal setting, thereby improving compression efficiency, robustness and error recovery capability, reducing real-time delay, reducing channel acquisition time and random access time delay, reducing complexity and the like.

Referring to fig. 1 and fig. 2, wherein fig. 1 is a structural diagram of a one-way h.265 codec proposed by the present invention; fig. 2 is a structural diagram of a single-channel h.265 codec main control board according to the present invention;

as shown in fig. 1 and fig. 2, the present invention provides a one-way h.265 codec, which includes:

the system comprises a main control panel 1, wherein an MCU module 2, an audio input/output module 3, a video input/output module 4, an H265 coding module, a power module 6, a peripheral interface module, a network interface module 5, a serial interface module, a storage module and an alarm module are arranged on the main control panel 1;

In the embodiment of the present invention, the main control module comprises BT1120 input, lvds output, audio input and output, and EEPROM memory interface; the network port interface module adopts a PCIE network port conversion module, and converts an Internet network port through an I210 chip;

the video input and output module can adopt an SDI input module and an SDI output module, and SDI signals are converted into BT1120 signals through the SDI input and output module to enter the host; the SDI output module converts the BT1120 signal inside the host into an SDI signal to be output;

similarly, VGA, HDMI and CVBS input modules are used for converting signals of VGA, HDMI and CVBS at the periphery into BT1120 signals and inputting the signals into the host.

Referring to fig. 3 to 5, fig. 3 is a circuit diagram of an MCU module according to the present invention; fig. 4 is a circuit diagram of an audio output module according to the present invention; fig. 5 is a circuit diagram of the serial interface module provided by the utility model.

Referring to fig. 4, the external audio and video uses a haisi 3516A module to input video acquisition and audio acquisition into the MCU module on the main control board; the peripheral interface module comprises a network interface module, a serial interface module and an input and output interface module, and the input and output interface module comprises: HDMI, DVI, SDI, CVBS output interface, RJ45 network port input interface, IO control interface, hard disk mounting interface and USB interface; the video input and output module comprises one or more of HDMI, DVI, SDI and CVBS interfaces; the output voltage of the power supply module is 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V and 1.1V; the MCU module adopts a control chip with the model number of AS0B821-S78B-7H, see FIG. 3; the network interface module adopts a network port chip with RTL8211E model; the storage module adopts a storage with the model number of AT24C128C-SS 9M; the audio input and output module adopts an audio chip of SGM8903 model.

Referring to fig. 5, the serial port module includes an RS232 interface and an RS-485 serial port, the RS232 serial port adopts a serial port module of a MAX3243EIPWR model, and the RS485 serial port module adopts a chip of a SN65HVD1781DR model.

The utility model provides a single-channel H.265 codec can support 1-channel video input, and can input through any interface (DVI/SDI/CVBS); 2 paths of USB2.0 are supported, and the USB interface can be used for IPC input and other functions; 3 paths of independent high-definition output are supported, the output can be realized through any interface (HDMI, DVI and SDI), and 1 CVBS standard definition output is realized; 2 paths of MIC input are supported, an echo cancellation function is supported, and 2 paths of audio output are supported; the 2-path 1000/100/10Mbps self-adaptive Ethernet full duplex interface is supported; and the functions of video splicing, superposition, OSD, scaling, transcoding, multi-code stream distribution and the like are supported.

The utility model discloses an integrated circuit chip builds audio frequency and video collection, network transmission system, and the concrete performance is: and the analog signal of the camera is converted into a digital signal by an AD conversion chip and enters an arm system for processing. The video data is compressed into an H265 coded data stream after being subjected to operations such as screen closing, amplification, reduction and the like through an arm chip, and the H265 coded data stream is sent to an opposite-end system through a network. And H265 decoding the network video data sent by the opposite-end system through the network chip. And after being processed, the decoded audio and video data are output to a local DA conversion chip for HDMI output, SDI output and VGA output.

The utility model provides an encoder can realize realizing the transmission processing of higher unvoiced sound video content under current limited network bandwidth. In view of the application requirement of network transmission of high-definition audio and video at present, bidirectional transmission of high-definition audio and video is often required to be realized in precious limited bandwidth, and 1080p full-high-definition video transmission can be realized under the bandwidth of 1.5 Mbps.

Providing richer multimedia operation capability based on H.265. And the method provides richer and stronger multimedia processing capability than the version based on the H.264 standard, such as service processing capability, UI processing capability, video coding and decoding, splicing, OSD, scaling, transcoding, multi-code stream distribution, audio processing capability, echo cancellation capability, digital variable input and output, intelligent video analysis and the like.

The utility model discloses integrated H.264, H.265's full encoder product has the value of popularization and application on a large scale. The method is suitable for transmission of videos among nodes, encoding and decoding, conversion, control, transmission and the like of videos of a multimedia conference or a control center, is suitable for scenes such as a private network multimedia comprehensive terminal, an internet of things, a broadcast and television project, a multimedia conference hall, a large-screen display project, television teaching, a command control center and the like, and can be widely applied to industries such as military, public security, army, telecommunication, finance, traffic, electric power, education, water conservancy, security and the like.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. A one-way h.265 codec, characterized by: the method comprises the following steps:

2. The one-way h.265 codec of claim 1, wherein: the peripheral interface module includes: HDMI, DVI, SDI, CVBS output interface, IO control interface, hard disk mount interface and USB interface.

3. The one-way h.265 codec of claim 1, wherein: the output voltage of the power supply module is 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V and 1.1V.

4. The one-way h.265 codec of claim 1, wherein: the MCU module adopts a control chip with the model number of AS0B 821-S78B-7H.

5. The one-way h.265 codec of claim 1, wherein: the network interface module adopts a network interface chip with RTL8211E model.

6. The one-way h.265 codec of claim 1, wherein: the storage module adopts a storage with model number AT24C128C-SS 9M.

7. The one-way h.265 codec of claim 1, wherein: the audio input and output module adopts an audio chip of SGM8903 type.

8. The one-way h.265 codec of claim 2, wherein: the serial port interface module comprises an RS232 interface and an RS-485 serial port, the RS232 serial port adopts a chip of MAX3243EIPWR model, and the RS485 serial port module adopts a chip of SN65HVD1781DR model.