CN209787335U

CN209787335U - Data coding and transcoding equipment

Info

Publication number: CN209787335U
Application number: CN201920294616.2U
Authority: CN
Inventors: 汤志敏
Original assignee: Wellav Video Polytron Technologies Inc
Current assignee: Wellav Video Polytron Technologies Inc
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2019-12-13
Anticipated expiration: 2029-03-08

Abstract

the application relates to a data coding and transcoding device, which comprises: the main control module is provided with a TS analyzer and a TS wrapper, the TS analyzer is used for analyzing the TS data stream to obtain a basic code stream ES, and the TS wrapper is used for wrapping the basic code stream ES coded by the graphic processing module; the graphic processing module is electrically connected with the main control module and is provided with an ES decoder and an ES encoder which are connected; the input end of the ES decoder is connected with the output end of the TS analyzer and is used for decoding the analyzed elementary code stream ES; and the output end of the ES encoder is connected with the input end of the TS packer and is used for recoding the data decoded by the ES decoder. The method aims to improve the compression efficiency of the equipment and reduce the system bandwidth occupancy rate.

Description

Data coding and transcoding equipment

Technical Field

The application relates to the technical field of data processing, in particular to a data coding and transcoding device.

Background

The audio and video industry is an important component of the information industry, and with the development of digital audio and video, audio and video data received in the ground, satellite, cable and other modes can be sent out in a network mode in a large application scene. As is known, audio and video data is also larger than other data, in the prior art, before the audio and video data is transmitted to the graphics processing module for playing, the audio and video module needs to be decoded and encoded by an external decoder and encoder, which is inefficient in compression and occupies a large system bandwidth.

Content of application

In order to solve the technical problems, the application provides a data coding and transcoding method, and aims to improve the compression efficiency of equipment and reduce the occupancy rate of system bandwidth.

The application provides a data coding and transcoding device, including:

The main control module is provided with a TS analyzer and a TS wrapper, the TS analyzer is used for analyzing the TS data stream to obtain a basic code stream ES, and the TS wrapper is used for wrapping the basic code stream ES coded by the graphic processing module;

The graphic processing module is electrically connected with the main control module and is provided with an ES decoder and an ES encoder which are connected;

the input end of the ES decoder is connected with the output end of the TS analyzer and is used for decoding the analyzed elementary code stream ES;

the output end of the ES encoder is connected with the input end of the TS packer and is used for recoding the data decoded by the ES decoder;

the apparatus further comprises:

and the signal receiving and transmitting module is connected with the main control module and is used for receiving and transmitting a signal code stream with an external user terminal or a background server.

Optionally, the graphics processing module further comprises a display memory; the ES decoder and the ES encoder are both in communication connection with the video memory.

Optionally, the TS parser and the TS wrapper are integrated in a main control chip, the main control module further includes a slicer for performing HLS slicing on the TS data stream, and a stream pusher for sending the sliced TS data stream, and the main control chip, the slicer and the stream pusher are in communication connection.

Optionally, the stream pusher includes an Nginx processing stream module, an LVS module, and a port binding module, and is configured to send the TS data stream after being encapsulated and sliced.

Optionally, the signal transceiver module is a UDP-based signal transceiver module, and the signal transceiver module communicates with an external user terminal or a background server.

optionally, the signal transceiving module includes one or more of an IP receiving port, an ASI receiving port, an SDI receiving port, an HDMI receiving port, and an AV receiving port.

The utility model provides a transcoding equipment is compiled to data through multiplexing graphics processing module, is about to audio frequency and video original file send graphics processing module to carry out transcoding code, and its beneficial effect lies in: the transcoding and encoding of the audio and video original file are realized in the graphics processing module without an external decoder and an external encoder, so that the copying times of the audio and video file are reduced, the occupancy rate of the system performance is reduced, and meanwhile, the compression efficiency of the audio and video file is improved.

drawings

FIG. 1 is a schematic structural diagram of the present apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a graphics processing module according to an embodiment of the present application.

Detailed Description

The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, will make the advantages and features of the present application more readily appreciated by those skilled in the art, and thus will more clearly define the scope of the invention.

In an embodiment as shown in fig. 1, the present application provides a data transcoding apparatus, including:

The main control module 1 is provided with a TS analyzer 13 and a TS wrapper 14, the TS analyzer 13 is used for analyzing the TS data stream to obtain a basic code stream ES, and the TS wrapper 14 is used for wrapping the basic code stream ES encoded by the graphic processing module 2;

the graphic processing module 2 is electrically connected with the main control module 1 and is provided with an ES decoder 21 and an ES encoder 22 which are connected;

The input end of the ES decoder 21 is connected to the output end of the TS parser 13, and is configured to decode the parsed elementary stream ES;

The output end of the ES encoder 21 is connected to the input end of the TS encapsulator 14, and is configured to re-encode the data decoded by the ES decoder 21;

the apparatus further comprises:

and the signal receiving and transmitting module 3 is connected with the main control module 1 and is used for receiving and transmitting a signal code stream with an external user terminal or a background server.

The main control module 1, the graphic processing module 2 and the signal transceiving module 3 are integrated in the device and are in communication connection. The main control module 1 obtains TS data stream from an external user terminal or a background server through the signal transceiving module 3, and analyzes the TS data stream through a TS analyzer to generate a elementary stream ES. The main control module 1 sends the elementary stream ES to the graphic processing module 2 for display. The graphics processing module 2 decodes and encodes the elementary stream ES through the ES decoder 21 and the ES encoder 22.

in the process of decoding and encoding the elementary stream ES, the ES decoder 21 first decodes the elementary stream ES to generate a yuv data set, and the yuv data set can be played and displayed through the graphics processing module. After the ES decoder 21 completes decoding of the elementary stream ES, the ES encoder 22 performs re-encoding processing on the yuv data set to generate a compressed elementary stream ES, and finally sends the compressed elementary stream ES to the main control module 1 for processing. The main control module 1 receives the compressed elementary stream ES recoded by the graphics processing module 2, encapsulates the elementary stream ES into TS data stream by a TS wrapper, processes the TS data stream and then sends the TS data stream by the signal transceiving module.

in one embodiment, the graphics processing module 2 further includes a display 23. The ES decoder 21 and the ES encoder 22 are both connected with the video memory 23 in communication; the main control module 1 stores the data of the elementary stream ES in the display 23, and when the ES decoder 21 decodes the elementary stream ES, the data of the elementary stream ES can be acquired from the display 23, and the data of the elementary stream ES is processed, and the generated yuv data is stored in the display 23 for reading. When the ES encoder 22 encodes the yuv data set, the stored yuv data set is acquired from the display memory 23, and the encoded compressed elementary stream ES is stored in the display memory 23.

in the embodiment, by multiplexing the graphics processing module 2, transcoding and encoding of the audio and video original file are realized in the graphics processing module without adding an external ES decoder and an ES encoder, so that the copy frequency of the audio and video file is reduced, the occupancy rate of the system performance is reduced, and meanwhile, the compression efficiency of the audio and video file is improved. In this embodiment, the Graphics Processing module 2 may adopt a GPU (Graphics Processing Unit) integrated with an ES decoder and an ES encoder, or adopt a GPU having decoding and encoding functions for an elementary stream ES, such as NVIDIA P2000, to satisfy transmission of an audio/video file with a large data size.

in an embodiment, the TS parser 13 and the TS wrapper 14 are integrated in the main control chip 1, the main control module 1 further includes a slicer 11 for performing HLS slicing on the TS data stream, and a stream pusher 12 for sending the sliced TS data stream, and the main control chip 1, the slicer 11, and the stream pusher 12 are in communication connection; the flow pusher comprises an Nginx processing flow module, an LVS module and a network port binding module and is used for sending the TS data flow after being packaged and sliced. The main control chip 13 is used for analyzing and packaging the TS data stream and calling each module of the device to work; the main control module 1 is also integrated with a slicer 11 and a current pusher 12; the TS data stream is prevented from being processed by other external equipment, the possibility of increasing caused by errors of multi-stage equipment is avoided, and the compression efficiency and the use cost are improved; in this embodiment, the main control chip 13 may be a general-purpose Central Processing Unit (CPU), such as a Central Processing Unit (CPU).

it can be understood that the specific types of the GPU and the CPU can be replaced and designed according to different processing requirements, which is not limited in the present application.

Optionally, the signal transceiver module is a signal transceiver module based on a user datagram protocol UDP. The device and the external device can communicate with an external user terminal or a background server through UDP or TCP.

In one embodiment, the signal transceiving module 3 includes one or more of an IP receiving port, an ASI receiving port, an SDI receiving port, an HDMI receiving port, and an AV receiving port; this equipment accessible various terminals carry out the communication, and the suitability is strong.

The equipment reduces the occupied system performance by multiplexing the graphic processing module and reducing the copying times; an ES decoder and an ES encoder are integrated in a graphic processing module (GPU), and a slicer and a stream pusher are integrated in a main control module (CPU); and the GPU and the CPU are positioned in the same equipment machine, so that the equipment utilization rate is improved, the possibility of increasing errors caused by adopting multi-stage equipment is avoided, and the compression efficiency and the use cost are improved.

in the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A data transcoding device, comprising:

The input end of the ES decoder is connected with the output end of the TS analyzer and is used for decoding the analyzed elementary code stream ES; the output end of the ES encoder is connected with the input end of the TS packer and is used for recoding the data decoded by the ES decoder;

The apparatus further comprises:

2. The data transcoding device of claim 1, wherein the graphics processing module further comprises a display memory; the ES decoder and the ES encoder are both connected with the video memory.

3. The data encoding and transcoding device of claim 1, wherein the TS parser and the TS wrapper are integrated in a main control chip, the main control module further includes a slicer for performing HLS slicing on a TS data stream, and a stream pusher for sending the sliced TS data stream, and the main control chip, the slicer and the stream pusher are communicatively connected.

4. The data encoding and transcoding device of claim 3, wherein the stream pusher comprises an Nginx processing stream module, an LVS module and a port binding module, and is configured to send the encapsulated and sliced TS data stream.

5. The data encoding and transcoding device of claim 1, wherein the signal transceiver module is a UDP-based signal transceiver module, and the signal transceiver module communicates with an external user terminal or a background server.

6. The data transcoding device of claim 5, wherein the signal transceiving module comprises one or more of an IP receiving port, an ASI receiving port, an SDI receiving port, an HDMI receiving port, and an AV receiving port.