Fix memory leak in OggExtractor

Test: added a temporal log and run poc
Bug: 63581671
Change-Id: I436a08e54d5e831f9fbdb33c26d15397ce1fbeba
(cherry picked from commit 63079e7c8e12cda4eb124fbe565213d30b9ea34c)

    sp<MetaData> getFileMetaData() { return mFileMeta; }

    sp<MetaData> getFileMetaData() { return mFileMeta; }
