CN111541902B - Distributed multimedia control system equipment applied to station - Google Patents
Distributed multimedia control system equipment applied to station Download PDFInfo
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- CN111541902B CN111541902B CN202010370917.6A CN202010370917A CN111541902B CN 111541902 B CN111541902 B CN 111541902B CN 202010370917 A CN202010370917 A CN 202010370917A CN 111541902 B CN111541902 B CN 111541902B
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- video
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/214—Specialised server platform, e.g. server located in an airplane, hotel, hospital
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses distributed multimedia control system equipment applied to a station, and particularly relates to the field of multimedia control equipment. The invention sends the audio frame data to the audio decoding module, the decoded data is sent to the audio output, namely, the sound is played, the video in the platform is processed into the image data, then a path is divided to the coding module, the coding module codes according to the H264 or mpeg-4 protocol and outputs the corresponding code stream by the RTSP or TS protocol, so as to be convenient for remotely monitoring the real-time on-the-air picture, and the invention has the advantages of low power consumption, supporting multi-path output and smooth playing of high-definition video.
Description
Technical Field
The invention relates to the technical field of multimedia control equipment, in particular to distributed multimedia control system equipment applied to a station.
Background
The ' multimedia audio controller ' is a sound card which is said by us, the ' video controller (VGA compatible) is a display card, and the display means that a corresponding driver is not installed. In the station multimedia exhibition, not only there is the video form, still have the audio frequency simultaneously and be used for the broadcast to remind, install respectively in the different positions of station, degrade and the real-time suggestion for the staff and the passenger at station.
The existing distributed multimedia control system equipment for stations aims at the problems of low decoding processing speed, high power consumption and the like of a video image by using an x86 industrial personal computer to simply use a cpu, and meanwhile, the common equipment only has a few VGA (video graphics array), HMI (human machine interface), DVI (digital visual interface) or other display outputs, and if a plurality of LCD (liquid crystal display) screens need to be connected, additional distribution equipment is needed; under the condition of not increasing external equipment, the control center is not easy to monitor the broadcasting picture of the station.
Disclosure of Invention
In order to overcome the above-mentioned defects in the prior art, an embodiment of the present invention provides a distributed multimedia control system device applied to a station, and the technical problem to be solved by the present invention is: how to realize the monitoring of the broadcasting picture of the station by the control center.
In order to achieve the purpose, the invention provides the following technical scheme: a distributed multimedia control system device applied to a station comprises a machine shell, wherein an integrated processor, an audio decoder, a video decoder, an FIB distributor and a coding module are arranged in the machine shell, the processor, the audio decoder, the video decoder and the coding module are all arranged on the integrated processor, a high-definition interface is arranged between the integrated processor and the machine shell, a plurality of connecting optical fibers are arranged between the FIB distributor and the high-definition interface, the audio decoder, the video decoder, the FIB distributor and the coding module are electrically connected through the integrated processor, and a hard disk and two power supplies are also arranged in the machine shell;
the integrated processor is set as a Haesi platform multi-core processor and comprises an embedded linux system, an open source ffmpeg open source frame, an SDK, a GPU and a central processor;
the embedded linux system can share the capability of a central processor for decoding and displaying video by utilizing the hardware decoding capability of the GPU;
the open source ffmpeg open source frame can demultiplex the video, separate out a video data stream and an audio data packet, match with an audio and video decoding protocol, and decode the data stream in an audio decoding thread and a video decoding thread to generate a video frame and an audio frame;
the SDK sends the separated video frame data to a video input processing module;
the FIB distributor is used for dispersing one path of high-definition audio and video signals into a plurality of paths of optical fiber signals capable of being transmitted in a long distance;
the coding module codes according to H264 or mpeg-4 protocol and outputs corresponding code stream according to RTSP or TS protocol.
In a preferred embodiment, the integrated processor is provided with a model of Hi3536 and is used for processing and outputting audio/video signals.
In a preferred embodiment, the integrated processor, the audio decoder, the video decoder, the FIB distributor and the encoding module are all fixedly arranged in the inner cavity of the housing.
In a preferred embodiment, one end of the high-definition interface, which is far away from the connecting optical fiber, penetrates through the casing, and the high-definition interface is fixedly connected with the casing.
In a preferred embodiment, the audio decoder comprises an audio packet input module and an audio output module, and the video decoder comprises a video packet input module and a video output module.
In a preferred embodiment, the integrated processor output is configured as an audio packet input module and a video packet input module.
The invention has the technical effects and advantages that:
the invention sends the audio frame data to the audio decoding module, the decoded data is sent to the audio output, namely, the sound is played, the video in the platform is processed into the image data, then a path is divided to the coding module, the coding module codes according to the H264 or mpeg-4 protocol and outputs the corresponding code stream by the RTSP or TS protocol, so as to be convenient for remotely monitoring the real-time on-the-air picture, and the invention has the advantages of low power consumption, supporting multi-path output and smooth playing of high-definition video.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the process of the present invention.
The reference signs are: 1 casing, 2 integrated processors, 3 audio decoder, 4 video decoder, 5FIB distributor, 6 coding module, 7 high definition interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
The invention provides distributed multimedia control system equipment applied to a station, which is shown in fig. 1-2 and comprises a machine shell 1, wherein an integrated processor 2, an audio decoder 3, a video decoder 4, an FIB distributor 5 and an encoding module 6 are arranged in the machine shell 1, the processor 2, the audio decoder 3, the video decoder 4 and the encoding module 6 are all arranged on the integrated processor 2, a high-definition interface 7 is arranged between the integrated processor 2 and the machine shell 1, a plurality of connecting optical fibers are arranged between the FIB distributor 5 and the high-definition interface 7, the audio decoder 3, the video decoder 4, the FIB distributor 5 and the encoding module 6 are electrically connected with each other through the integrated processor 2, and a hard disk and two power supplies are also arranged in the machine shell 1;
the integrated processor 2 is set as a Haisi platform multi-core processor, and the integrated processor 2 comprises an embedded linux system, an open source ffmpeg open source frame, an SDK, a GPU and a central processor;
the embedded linux system can share the capability of a central processor for decoding and displaying video by utilizing the hardware decoding capability of the GPU;
the open source ffmpeg open source frame can demultiplex the video, separate out a video data stream and an audio data packet, match with an audio and video decoding protocol, and decode the data stream in an audio decoding thread and a video decoding thread to generate a video frame and an audio frame;
the SDK sends the separated video frame data to a video input processing module;
the FIB distributor 5 is used for dispersing one path of high-definition audio and video signals into a plurality of paths of optical fiber signals capable of being transmitted in a long distance;
the coding module 6 codes according to H264 or mpeg-4 protocol and outputs corresponding code stream according to RTSP or TS protocol.
The model of integrated processor 2 sets up to Hi3536 for handle audio/video signal and signal output, integrated processor 2, audio decoder 3, video decoder 4, FIB distributor 5 and coding module 6 all fix and set up in casing 1 inner chamber, high definition interface 7 is kept away from and is connected optic fibre one end and run through casing 1, and high definition interface 7 and casing 1 fixed connection, audio decoder 3 includes audio data package input module and audio output module, video decoder 4 includes video data package input module and video output module, integrated processor 2 output sets up to audio data package input module and video data package input module.
The implementation mode is specifically as follows: the equipment adopts a Haisi platform integrated embedded linux system, fully utilizes the hardware decoding capability of a GPU, shares the capability of a central processor for decoding and displaying video, realizes the smooth playing of 1080p high-definition video, captures an image layer in real time for 2 times of coding, and sends out the coded video through a network, so that the center can conveniently and real-timely call the multimedia on-air pictures of a station through the network; meanwhile, the device is integrated with an FIB distributor 5, the maximum support is given to 8 paths of output of video pictures, an open source ffmpeg open source framework is used for demultiplexing the video, a video data stream and an audio data packet are separated, and an audio and video decoding protocol is matched; decoding data streams in an audio decoding thread and a video decoding thread to generate video frames and audio frames, sending separated video frame data to a video input processing module by using an SDK (software development kit) provided by a Haesi platform, capturing video images by the video input module, then outputting the video images to a high-definition interface 7 through a video processing and video output module provided by the Haesi platform, and finally outputting the video images to the high-definition interface 7 according to an output protocol, wherein a fiber distributor connected with the high-definition interface 7 disperses a path of high-definition audio and video signals into 8 paths of optical fiber signals capable of being transmitted remotely; the audio frame data is sent to an audio decoding module, the decoded data is sent to audio output, namely, sound is played, a path is divided to an encoding module 6 after video processing is carried out in the platform into image data, the encoding module 6 encodes according to an H264 or mpeg-4 protocol and outputs a corresponding code stream according to an RTSP or TS protocol, so that a real-time on-the-air picture can be monitored remotely.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. A distributed multimedia control system device applied to a station comprises a machine shell (1), and is characterized in that: the portable digital camera is characterized in that an integrated processor (2), an audio decoder (3), a video decoder (4), an FIB distributor (5) and an encoding module (6) are arranged in the casing (1), the audio decoder (3), the video decoder (4) and the encoding module (6) are all arranged on the integrated processor (2), a high-definition interface (7) is arranged between the integrated processor (2) and the casing (1), a plurality of connecting optical fibers are arranged between the FIB distributor (5) and the high-definition interface (7), the audio decoder (3), the video decoder (4), the FIB distributor (5) and the encoding module (6) are electrically connected with one another through the integrated processor (2), and a hard disk and two power supplies are further arranged in the casing (1);
the integrated processor (2) is set to be a Haisi platform multi-core processor, and the integrated processor (2) comprises an embedded linux system, an open source ffmpeg open source framework, an SDK, a GPU and a central processor;
the embedded linux system shares the capability of a central processor for decoding and displaying video by utilizing the hardware decoding capability of the GPU;
the open source ffmpeg open source frame demultiplexes the video, separates out a video data stream and an audio data packet, matches with an audio and video decoding protocol, and decodes the data stream in an audio decoding thread and a video decoding thread to generate a video frame and an audio frame;
the video decoder (4) comprises a video data packet input module and a video output module;
the SDK sends the separated video frame data to a video data packet input module;
the FIB distributor (5) is used for dispersing one path of high-definition audio and video signals into a plurality of paths of optical fiber signals capable of being transmitted in a long distance;
the coding module (6) codes according to an H264 or mpeg-4 protocol and outputs a corresponding code stream by an RTSP or TS protocol;
the equipment adopts a Haisi platform integrated embedded linux system, fully utilizes the hardware decoding capability of a GPU, shares the capability of a central processor for decoding and displaying video, realizes the smooth playing of 1080p high-definition video, captures an image layer in real time for 2 times of coding, and sends out the coded video through a network, so that the center can conveniently and real-timely call the multimedia playing picture of a station through the network; meanwhile, the device is integrated with an FIB distributor (5) and supports 8 paths of video pictures to be output to the maximum; sending the separated video frame data to a video data packet input module by using an SDK (software development kit) provided by a Haesi platform, capturing a video image by the video data packet input module, outputting the video image to a high-definition interface (7) through a video processing and video output module provided by the Haesi platform according to an output protocol, and dispersing one path of high-definition audio and video signals into 8 paths of optical fiber signals capable of being transmitted remotely by an FIB distributor (5) connected with the high-definition interface (7); and audio frame data is sent to an audio decoding module, the decoded data is sent to audio output, namely, sound is played, and a path is divided to a coding module (6) after video processing is carried out in the platform into image data.
2. The distributed multimedia control system device applied to the station as claimed in claim 1, wherein: the integrated processor (2) is provided with a Hi3536 model and is used for processing audio/video signals and outputting the signals.
3. The distributed multimedia control system device applied to the station as claimed in claim 1, wherein: the integrated processor (2), the audio decoder (3), the video decoder (4), the FIB distributor (5) and the coding module (6) are fixedly arranged in the inner cavity of the machine shell (1).
4. The distributed multimedia control system device applied to the station as claimed in claim 1, wherein: high definition interface (7) are kept away from connecting optic fibre one end and are run through casing (1), and high definition interface (7) and casing (1) fixed connection.
5. The distributed multimedia control system device applied to the station as claimed in claim 1, wherein: the audio decoder (3) comprises an audio data packet input module and an audio output module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010370917.6A CN111541902B (en) | 2020-04-30 | 2020-04-30 | Distributed multimedia control system equipment applied to station |
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| CN202010370917.6A CN111541902B (en) | 2020-04-30 | 2020-04-30 | Distributed multimedia control system equipment applied to station |
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| CN111541902A CN111541902A (en) | 2020-08-14 |
| CN111541902B true CN111541902B (en) | 2021-04-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112261460B (en) * | 2020-10-19 | 2022-09-27 | 天津津航计算技术研究所 | PCIE (peripheral component interface express) -based multi-channel video decoding scheme design method |
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Denomination of invention: A distributed multimedia control system equipment for station Effective date of registration: 20210927 Granted publication date: 20210413 Pledgee: Bank of Communications Ltd. Shanghai Xuhui sub branch Pledgor: SHANGHAI MISSION INFORMTION TECHNOLOGIES Co.,Ltd. Registration number: Y2021310000084 |