Title :
Research on CAVLC audio-video synchronization coding approach based on H.264
Author :
Qi, Xiaoyin ; Li, Xiaoni ; Chen, Mianshu ; Chen, Hexin
Author_Institution :
Sch. of Commun. Eng., Jilin Univ., Changchun, China
Abstract :
In order to solve the problem of synchronization of audio and video effectively, a new method based on the H.264/AVC encoder is proposed. The new approach applies the highest-frequency sign bit of the Trailing Ones, which is in Context Adaptive Variable Length Coding (CAVLC) during the entropy coding process, to embed audio information into video stream. Experimental results show that the proposed method achieves synchronization between audio and video at no bit-rate increase, and the original audio information can be extracted from the H.264/AVC decoder without any distortion. At the same time, it has little effect on the quality of video.
Keywords :
audio coding; synchronisation; video coding; CAVLC audio-video synchronization coding; H.264/AVC encoder; context adaptive variable length coding; entropy coding; trailing ones; Entropy coding; Image coding; Image reconstruction; Streaming media; Synchronization; Video sequences; Audio; CAVLC; H.264/AVC; Synchronization coding; Video;
Conference_Titel :
Uncertainty Reasoning and Knowledge Engineering (URKE), 2011 International Conference on
Conference_Location :
Bali
Print_ISBN :
978-1-4244-9985-4
Electronic_ISBN :
978-1-4244-9984-7
DOI :
10.1109/URKE.2011.6007924
