Video and Audio Synchronization Mechanisms and Applications On Embedded System
| Autor: | Yow-Sheng Leu, 呂侑陞 |
|---|---|
| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 Nowadays digital image process systems is progressing very rapidly, digital cameras, digital Video camera are producing one after another. When we were make video capture, image recognition or image tracing, devices with a lot of sampling video data or filter the data which the users need, and then again we use these data to perform these functions which the users would like to reach. Since personal computers are for general purpose, it is unfavorable to provide some special functions. The other reason is that the movement of the computer is not convenient. According to the above reasons, TMS320DSC25 platform is a feasible choice to develop embedded system. This thesis develops a system with TMS320DSC25 platform. The system includes two processors-ARM and DSP. By the way of CCD and TVP514, it can capture digital video data, at the same time, it can receive audio data by microphone. By DSP's hardware acceleration dealing with video encode and audio encode, thesis will make the result of the calculation output to memory. This thesis will use two different ways to implement video and audio synchronization encoding and decoding which can adjust frame rate. Finally, I have performed some tests and experiments with two different ways to show the comparisons. How to implement video and audio system and the combine with and ESOL operation system and then provide complete application of multimedia has been discussed in the thesis. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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