Optimized H.264/AVC-based bit stream switching for mobile video streaming

被引：3
|
作者：
Stockhammer, Thomas
Liebl, Guenther
Walter, Michael
机构：
[1] Nomor Res GmbH, D-83346 Bergen, Germany
[2] Munich Univ Technol TUM, Inst Commun Engn LNT, D-80290 Munich, Germany
来源：
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING | 2006年 / 2006卷 / 1期
关键词：
Video Stream; Video Streaming; Abstract Representation; Streaming Application; Rate Channel;
D O I：
10.1155/ASP/2006/91797
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this work we show the suitability of H.264/MPEG-4 AVC extended profile for wireless video streaming applications. In particular, we exploit the advanced bit stream switching capabilities using SP/SI pictures defined in the H.264/MPEG-4 AVC standard. For both types of switching pictures, optimized encoders are developed. We introduce a framework for dynamic switching and frame scheduling. For this purpose we define an appropriate abstract representation for media encoded for video streaming, as well as for the characteristics of wireless variable bit rate channels. The achievable performance gains over H.264/MPEG-4 AVC with constant bit rate (CBR) encoding are shown for wireless video streaming over enhanced GPRS (EGPRS). Copyright (C) 2006 Hindawi Publishing Corporation. All rights reserved.
引用
收藏
页码：1 / 19
页数：19
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