File writer size estimation improvement

o Do not count the reserved space for moov if the meta data size is small
o Do not count the extra 1KB disturbing small file estimation.
o Reduce the default minimum reserved space from 4 KB to 3 KB.
o Estimate the moov size based on both duration AND file size limit is set
  and set it to the smaller estimated value.

low risk change

bug - 3111983

Change-Id: I6ac2adb979d8cc12d6b4f1813d000c989add0199
2 files changed
tree: 3ab0e1e83296e4f4fe2d2a4407f03964f7b31c64
  1. camera/
  2. cmds/
  3. include/
  4. media/
  5. services/