METHOD, APPARATUS AND SYSTEM FOR REARRANGEMENT AND EXTRACTION OF MEDIA DATA IN SEGMENT

摘要

A method, an apparatus and a system for rearrangement and extraction of media data in segment are disclosed in the present invention which belongs to the field of media data processing. The rearrangement method includes: segmenting media content; during the segmenting process, continuously and physically storing media data fulfilled with a rearrangement attribute in the fragments of the segment, and composing sub-fragments corresponding to the rearrangement attribute, wherein, the media data is composed with samples or sub-samples; adding index information of the sub-fragments, wherein, the index information includes the rearrangement attribute information and location information of the sub-fragment; obtaining the index information of the sub-fragments, wherein the index information includes the rearrangement attribute information and location information of the sub-fragment; calculating the range of byte of the sub-fragments corresponding to a predetermined rearrangement attribute according to the index information; and requesting and receiving the sub-fragments corresponding to the predetermined rearrangement attribute according to the range of the byte. It enables the client to obtain the media data corresponding to the rearrangement attribute in the segments quickly and precisely.