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Hierarchical design method and system for multimedia host

A design method, multimedia technology

Active Publication Date: 2013-09-18
SUZHOU KEDA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some audio matrix products currently on the market, such as various mixing consoles, which often have the following technical defects: 1. The hardware cost is high, with a high technical threshold, and it is difficult for non-professionals to control; 2. The function is fixed and it is difficult to expand the function. Generally, it can only be done through external hardware devices, which further increases the cost and difficulty of operation; 3. The control method is backward, and the parameter adjustment of these audio matrix products generally adopts the method of physical displacement, which uses physical devices such as knobs and sliders. It is difficult to connect with the current digital system, and it is difficult to realize remote parameter adjustment
In the above solution, the design of each functional layer is only for the functions of digital TV products, such as program search, program playback, etc., because the multimedia host needs to perform very complicated processing on multimedia data, which is completely different from the processing method of digital TV products and more complicated

Method used

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  • Hierarchical design method and system for multimedia host
  • Hierarchical design method and system for multimedia host
  • Hierarchical design method and system for multimedia host

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Experimental program
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Embodiment 1

[0059] This embodiment provides a hierarchical design method for a multimedia host, including the following steps:

[0060] S1: Divide the multimedia host software into a driver layer, a media control encapsulation layer, and an application layer; the driver layer provides corresponding drivers for the multimedia data processing of the multimedia host; the media control encapsulation layer provides the driver layer with The driver layer encapsulation interface encapsulates the driver layer to shield the hardware platform of the multimedia host; the media control encapsulation layer provides an application layer encapsulation interface for the application layer and encapsulates the application layer.

[0061] S2: The application layer loads processing parameters for regulating the multimedia data into the media control encapsulation layer through the application layer encapsulation interface to control the multimedia data processing method; compared with the tuning in the prior ...

Embodiment 2

[0090] This embodiment provides a multimedia host layered design system, such as figure 1 As shown, it includes driver layer module, media control encapsulation layer module and application layer module;

[0091] The driver layer module provides corresponding drivers for the multimedia data processing of the multimedia host;

[0092] The media control encapsulation layer module provides a drive layer encapsulation interface for the driver layer module, encapsulates the driver layer module, and realizes the shielding of the multimedia host hardware platform; the media control encapsulation layer module is the The application layer module provides an application layer encapsulation interface to encapsulate the application layer module;

[0093] The application layer module loads processing parameters for regulating the multimedia data to the media control encapsulation layer module through the application layer encapsulation interface;

[0094] The driver layer module acquires...

Embodiment 3

[0113] image 3 It is a hardware connection diagram provided according to a specific embodiment of the present invention.

[0114] The hardware of this product adopts the multi-processor cooperation mode of GPP (General Purpose Processor) and DSP (Digital Signal Processor). SPI (Serial Peripheral Interface, peripheral serial interface) port for communication. The AM1808 side runs the Linux system to realize system control and upper-layer application program development; the TMS320C6747 side runs the DSP / Bios operating system, which is the main body of the audio matrix function; the data exchange between the two through the SPI interface realizes the communication between the main control terminal AM1808 and the TMS320C6747 control.

[0115] The product has 20 channels of audio collection, of which 14 are microphone input and 6 are line input; it has 4 audio playback channels, of which 2 are line output and 2 are balanced output.

[0116] The collection of audio data is comp...

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Abstract

The invention discloses a hierarchical design method and system for a multimedia host. A multimedia host software is divided into a driving layer, a media control encapsulation layer and an application layer, wherein the media control encapsulation layer provides a driving layer encapsulation interface for the driving layer to perform encapsulation to the driving layer, so that shielding of the multimedia host hardware platform is realized; the media control encapsulation layer provides an encapsulation interface for a operating system and performs shielding to the operating system; the media control encapsulation layer provides an application layer encapsulation interface for the application layer, a processing parameter loaded by the application layer through the application layer encapsulation interface is acquired directly, and intelligent processing is performed to multimedia data according to the processing parameter. Therefore, through the scheme of the invention, the intelligent processing performed to the multimedia data can be realized, and meanwhile, cross-platform and cross-system transplanting of the multimedia host software is realized.

Description

technical field [0001] The invention relates to a layered design method and system, in particular to a multimedia host layered design method and system, belonging to the field of computer software design. Background technique [0002] In some application scenarios, such as court trials, the input terminal needs to perform multi-channel audio collection locally (audio signals can be collected through microphones or line input through other audio devices), and at the same time support remote network audio data access. audio input, while the output requires multiple mixing group outputs, that is, each mixing group can configure audio input sources arbitrarily; the asymmetric relationship between input and output constitutes the concept of audio matrix. There are some audio matrix products currently on the market, such as various mixing consoles, which often have the following technical defects: 1. The hardware cost is high, with a high technical threshold, and it is difficult f...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 王振先陈卫东
Owner SUZHOU KEDA TECH
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