Abstract
Mobile TV environments demand flexible video compression like Scalable Video Coding (SVC) because of varying bandwidths and devices. Since existing infrastructures highly rely on H.264/AVC video compression, network providers could adapt the current H.264/AVC encoded video to SVC. This adaptation needs to be done efficiently to reduce processing power and operational cost. Since a cascaded decoder-encoder solution is too complex to be practical, we developed a mechanism to encode scalable video streams from existing H.264/AVC encoded video streams. This paper proposes a novel technique to accelerate the encoding of SVC streams by reusing information from the H.264/AVC stream and the base layer. We achieved a complexity reduction of 52%, while only an insignificant bit rate increase is reported (0.2%). According to these results, an H.264/AVC-to-SVC transcoder is usable with a low operational cost without compromising the coding efficiency.
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© 2012 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Van Wallendael, G. et al. (2012). Fast H.264/AVC-to-SVC Transcoding in a Mobile Television Environment. In: Rodriguez, J., Tafazolli, R., Verikoukis, C. (eds) Mobile Multimedia Communications. MobiMedia 2010. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 77. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35155-6_49
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DOI: https://doi.org/10.1007/978-3-642-35155-6_49
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-35154-9
Online ISBN: 978-3-642-35155-6
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