计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2014年
10期
3399-3403
,共5页
多点控制单元%TMS320DM8168%H264%G722%实时传输协议
多點控製單元%TMS320DM8168%H264%G722%實時傳輸協議
다점공제단원%TMS320DM8168%H264%G722%실시전수협의
MCU%TMS320DM8168%H264%G722%RTP
基于TMS320DM8168设计并实现一种嵌入式视频会议系统多点控制单元（MCU）。音频压缩算法采用G.722，视频压缩算法采用H.264，音视频流传输采用RT P。阐述系统的硬件组成和软件实现，对视频会议的QoS进行分析。该系统体积小、功耗低，能够同时为8个用户提供服务。测试结果表明，该系统工作稳定，达到预期设计目标，音视频流畅，处理时延小于100 ms ，能够满足视频会议系统对于MCU的性能要求。
基于TMS320DM8168設計併實現一種嵌入式視頻會議繫統多點控製單元（MCU）。音頻壓縮算法採用G.722，視頻壓縮算法採用H.264，音視頻流傳輸採用RT P。闡述繫統的硬件組成和軟件實現，對視頻會議的QoS進行分析。該繫統體積小、功耗低，能夠同時為8箇用戶提供服務。測試結果錶明，該繫統工作穩定，達到預期設計目標，音視頻流暢，處理時延小于100 ms ，能夠滿足視頻會議繫統對于MCU的性能要求。
기우TMS320DM8168설계병실현일충감입식시빈회의계통다점공제단원（MCU）。음빈압축산법채용G.722，시빈압축산법채용H.264，음시빈류전수채용RT P。천술계통적경건조성화연건실현，대시빈회의적QoS진행분석。해계통체적소、공모저，능구동시위8개용호제공복무。측시결과표명，해계통공작은정，체도예기설계목표，음시빈류창，처리시연소우100 ms ，능구만족시빈회의계통대우MCU적성능요구。
An embedded video conference MCU based on TMS320DM8168 was designed and realized .G.722 algorithm was cho-sen for the speech compression ,H.264 algorithm was chosen for the video compression ,and RTP was used to transport media streams .The hardware solution and the software implementation were elaborated .The QoS for the video conference was also analyzed .Characterized by the small size and the low power ,the proposed system can provide service for 8 users at the same time .Test results show that the system has the advantage of high reliability ,smooth audio and video streams ,and its processing delay is less than 100 ms ,which can meet the performance requirements in the video conference .
