Real-time software MPEG-2 TO H.264 video transcoding

Author

Goh, K.H. ; Wu, D.J. ; Tham, J.Y. ; Chiew, T.K. ; Lee, W.S.

Author_Institution

Inst. for Infocomm Res., Singapore

fYear

2008

fDate

June 23 2008-April 26 2008

Firstpage

165

Lastpage

168

Abstract

The paper describes a fast MPEG-2 to H.264 transcoder by leveraging the MPEG-2 metadata set to reduce the computational complexity of the H.264 encoding process. With the proposed fast transcoding algorithms, our software-based transcoder can perform real-time transcoding a MPEG-2 movie from a DVD disc (at D1 resolution and full frame-rate) and simultaneously performing RTP/UDP streaming of the H.264 video with AC-3 audio over IP networks using only a 1.6 GHz PC notebook. We can achieve about 20-30% faster than the full re-encoding method even at the same target bit-rate and without visible quality degradation. Benchmarking with existing software systems has shown similar results.

Keywords

transcoding; video coding; H.264 video transcoding; IP networks; MPEG-2 metadata set; real-time software; software-based transcoder; Computational complexity; DVD; Decoding; Digital video broadcasting; Discrete cosine transforms; Encoding; Image reconstruction; Motion pictures; Transcoding; Video compression; Transcaling and H.264; Transcoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2008 IEEE International Conference on

Conference_Location

Hannover

Print_ISBN

978-1-4244-2570-9

Electronic_ISBN

978-1-4244-2571-6

Type

conf

DOI

10.1109/ICME.2008.4607397

Filename

4607397