Fix track duration calculation if the start timestamp is non-zero

o Updated the comments in the patch
o Added some additional checks on the timestamp

Change-Id: I8ad81eb6bfe358c1db5245cbb52efc905cdc234c
1 file changed
tree: 01a16296e44c13ccb692bfe12bbfe3763bc4d3fc
  1. camera/
  2. cmds/
  3. include/
  4. media/
  5. services/