https://github.com/android/platform_frameworks_base/blob/master/cmds/stagefright/stagefright.cpp
https://www.codeaurora.org/git/projects/ag-gb-dsds-7227/repository/revisions/4bdd17c47ffda215c1531ad948e4de71777527cc/entry/frameworks/base/cmds/stagefright/WaveWriter.h
mpeg4write.cpp