Motivation and Implementation of a Software H.264 Real-Time CIF Encoder for Mobile TV Broadcast Applications

Author

Berger, Gad ; Goedeken, Richard ; Richardson, John

Author_Institution

Thomson Corp. Res., Princeton

Volume

53

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

584

Lastpage

587

Abstract

An encoding system was implemented purely in software for sending H.264 video multicast to mobile devices. The H.264 encoder is a multi-threaded parallel-GOP encoder. It is capable of running in real-time with an AMD Opteron 1.8 GHz dual-core platform in baseline profile at CIF resolution at 1 Mbps-Real-time video encoding is accomplished with aggressive single instruction multiple data assembly code optimizations and advanced algorithms. A time control algorithm was developed to quell the mode decision process from spending too much time per frame. Transmission of the audio and video streams is on an IP layer over WiFi and DVB-H. DVB-H is chosen for its power saving and reliability features. Using the IP network, the encoder can be repurposed for applications other than mobile broadcast video.

Keywords

IP networks; mobile television; optimisation; telesoftware; television broadcasting; video coding; CIF encoder; DVB-H; IP layer; WiFi; aggressive single instruction multiple data assembly code; mobile TV broadcast; mode decision process; software H.264; time control algorithm; Application software; Bit rate; Digital audio broadcasting; Digital video broadcasting; Encoding; IP networks; Mobile TV; Streaming media; TV broadcasting; Video compression; AVC; DVB-H; H.264; TV Broadcasting; digital TV; digital communication; encoder; encoding; internet; mobile communication; mobility; real-time; software; video coding; wireless;

fLanguage

English

Journal_Title

Broadcasting, IEEE Transactions on

Publisher

ieee

ISSN

0018-9316

Type

jour

DOI

10.1109/TBC.2007.896960

Filename

4215103