Architecture method of video decoding output model

A technology of video decoding and video output, applied in the direction of digital video signal modification, TV, electrical components, etc., can solve the problem of wasting memory space and so on

Inactive Publication Date: 2012-03-07
SHANGHAI INFOTM MICROELECTRONICS
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Problems solved by technology

This wastes memory space when the display size is smaller than the original video size

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  • Architecture method of video decoding output model
  • Architecture method of video decoding output model

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Embodiment Construction

[0011] The present invention will be further set forth below in conjunction with accompanying drawing:

[0012] The picture shows the data flow of data decoding and video output unit. When the video data enters the video decoding unit, the parameters to be displayed by the current system must be obtained first, and then the decoding module is configured according to the parameters. The decoding module combines video decoding and subsequent processing according to the configuration parameters, so that the video data of the specified configuration is directly obtained in the decoding unit. When the data reaches the video output unit through the synchronization strategy, it can be sent to the hardware device without any processing show.

[0013] The above operation process is a typical implementation of the method of the present invention, which has been verified by million-level shipments in the 1080P multimedia solution based on Infront microchips, and can well satisfy the use...

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Abstract

An architecture method of a video decoding output model is disclosed. A technology field of the invention relates to multimedia audio and video playing. The invention aims at providing the architecture method of a video decoding unit and a video output unit model which can perform accurate audio and video synchronization, less system memory usage and efficiency improvement. The method comprises the following steps: acquiring a video display size, an output format and a rotation angle on the video decoding unit; combining a data decoding process and a subsequent processing process according to a display parameter configuration decoding module obtained from the previous step and realizing video data output of the specified video format, the size and the rotation angle; transmitting the decoding data to a video display unit; transmitting the data to video output equipment by a video output terminal for displaying. By using the method of the invention, memory usage can be reduced; paralleling of the decoding and the subsequent processing can be realized; a utilization rate of bus bandwidth can be minimized; an efficiency can be raised and audio and video asynchronization caused by the video output unit because of instable subsequent processing time consumption can be avoided.

Description

technical field [0001] The present invention relates to the field of multimedia audio and video playback, and more specifically, relates to a method for building a video decoding module and a video output module for video playback. Background technique [0002] When the user clicks to play a video file, the multimedia playback system first reads the audio and video data from the video file, and then sends it to the decoder for decoding. The audio content and video content output by decoding will be sent to the audio through the output module through synchronization measures. Device output, video device display, and finally complete the entire playback process. [0003] In the two links of the video decoding module and the output module, how the video decoding unit and the video output cooperate is very important. A reasonable architecture of the decoding module and output module can achieve accurate synchronization of audio and video, reduce system memory usage, and improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/30H04N7/26H04N19/112H04N19/16H04N19/60H04N19/85
Inventor 丁强王胜李兴仁付伟叶伟泽
Owner SHANGHAI INFOTM MICROELECTRONICS
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